WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

H03H　IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS (measuring, testing G01R; arrangements for producing a reverberation or echo sound G10K 15/08; impedance networks or resonators consisting of distributed impedances, e.g. of the waveguide type, H01P; control of amplification, e.g. bandwidth control of amplifiers, H03G; tuning resonant circuits, e.g. tuning coupled resonant circuits, H03J; networks for modifying the frequency characteristics of communication systems H04B)

H03H 1/00 Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network (constructional details of electromechanical transducers H03H 9/00)

H03H 1/0007 ・{of radio frequency interference filters}

H03H 1/02 ・of RC networks, e.g. integrated networks

H03H 2/00 Networks using elements or techniques not provided for in groups H03H 3/00 to H03H 21/00

H03H 2/001 ・{comprising magnetostatic wave network elements}

H03H 2/003 ・{comprising optical fibre network elements (optical elements per se G02B, G02F; transmission systems using light waves H04B 10/00)}

H03H 2/005 ・{Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers}

H03H 2/006 ・・{Transmitter or amplifier output circuits}

H03H 2/008 ・・{Receiver or amplifier input circuits}

H03H 3/00 Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators

H03H 3/007 ・for the manufacture of electromechanical resonators or networks

H03H 3/0072 ・・{of micro-electro-mechanical resonators or networks (micro-membranes or micro-beams B81B 3/00M2; manufacture of micro-structural devices in general B81C)}

H03H 3/0073 ・・・{Integration with other electronic structures}

H03H 3/0075 ・・・{Arrangements or methods specially adapted for testing micro-elecro-mechanical resonators or networks}

H03H 3/0076 ・・・{for obtaining desired frequency or temperature coefficients}

H03H 3/0077 ・・・・{by tuning of resonance frequency}

H03H 3/0078 ・・・・・{involving adjustment of the transducing gap}

H03H 3/013 ・・for obtaining desired frequency or temperature coefficient ({H03H 3/0076}H03H 3/04, H03H 3/10 take precedence)

H03H 3/02 ・・for the manufacture of piezo-electric or electrostrictive resonators or networks (H03H 3/08 takes precedence)

H03H 3/04 ・・・for obtaining desired frequency or temperature coefficient

H03H 3/06 ・・for the manufacture of magnetostrictive resonators or networks

H03H 3/08 ・・for the manufacture of resonators or networks using surface acoustic waves

H03H 3/10 ・・・for obtaining desired frequency or temperature coefficient

H03H 5/00 One-port networks comprising only passive electrical elements as network components

H03H 5/003 ・{comprising distributed impedance elements together with lumped impedance elements}

H03H 5/006 ・{comprising simultaneously tunable inductance and capacitance}

H03H 5/02 ・without voltage- or current-dependent elements

H03H 5/10 ・・comprising at least one element with prescribed temperature coefficient

H03H 5/12 ・with at least one voltage- or current-dependent element

H03H 7/00 Multiple-port networks comprising only passive electrical elements as network components (receiver input circuits H04B 1/18; networks simulating a length of communication cable H04B 3/40)

H03H 7/002 ・{Gyrators}

H03H 7/004 ・{Capacitive coupling circuits not otherwise provided for}

H03H 7/01 ・Frequency selective two-port networks

H03H 7/0107 ・・{Non-linear filters}

H03H 7/0115 ・・{comprising only inductors and capacitors (H03H 7/075, H03H 7/09, H03H 7/12, H03H 7/13 take precedence)}

H03H 7/0123 ・・{comprising distributed impedance elements together with lumped impedance elements}

H03H 7/0138 ・・{Electrical filters or coupling circuits}

H03H 7/0146 ・・・{Coupling circuits between two tubes, not otherwise provided for}

H03H 7/0153 ・・{Electrical filters; Controlling thereof}

H03H 7/0161 ・・・{Bandpass filters (H03H 7/12 takes precedence)}

H03H 7/0169 ・・・・{Intermediate frequency filters}

H03H 7/0176 ・・・・・{witout magnetic core}

H03H 7/0184 ・・・・・{with ferromagnetic core}

H03H 7/03 ・・comprising means for compensation of loss

H03H 7/06 ・・including resistors (H03H 7/075, H03H 7/09, H03H 7/12, H03H 7/13 take precedence)

H03H 7/065 ・・・Parallel T-filters

H03H 7/07 ・・・Bridged T-filters

H03H 7/075 ・・Ladder networks, e.g. electric wave filters

H03H 7/09 ・・Filters comprising mutual inductance

H03H 7/12 ・・Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency (H03H 7/09 takes precedence; automatic control of bandwidth in amplifiers H03G 5/16)

H03H 7/13 ・・using electro-optic elements

H03H 7/17 ・・{Structural details of sub-circuits of frequency selective networks}

H03H 7/1708 ・・・{Comprising bridging elements, i.e. elements in a series path without own reference to ground and spanning branching nodes of another series path (H03H 7/07 takes precedence)}

H03H 7/1716 ・・・{Comprising foot-point elements}

H03H 7/1725 ・・・・{Element to ground being common to different shunt paths, i.e. Y-structure}

H03H 7/1733 ・・・・{Element between different shunt or branch paths (H03H 7/425 takes precedence)}

H03H 7/1741 ・・・{Comprising typical LC combinations, irrespective of presence and location of additional resistors (when resistors are present, also classify in H03H 7/06 to H03H 7/07)}

H03H 7/175 ・・・・{Series LC in series path (H03H 7/1783 takes precedence)}

H03H 7/1758 ・・・・{Series LC in shunt or branch path (H03H 7/1791 takes precedence)}

H03H 7/1766 ・・・・{Parallel LC in series path (H03H 7/1783 takes precedence)}

H03H 7/1775 ・・・・{Parallel LC in shunt or branch path (H03H 7/1791 takes precedence)}

H03H 7/1783 ・・・・{Combined LC in series path}

H03H 7/1791 ・・・・{Combined LC in shunt or branch path}

H03H 7/18 ・Networks for phase shifting

H03H 7/185 ・・{comprising distributed impedance elements together with lumped impedance elements}

H03H 7/19 ・・Two-port phase shifters providing a predetermined phase shift, e.g. "all-pass" filters

H03H 7/20 ・・Two-port phase shifters providing an adjustable phase shift

H03H 7/21 ・・providing two or more phase shifted output signals, e.g. n-phase output

H03H 7/24 ・Frequency- independent attenuators

H03H 7/25 ・・comprising an element controlled by an electric or magnetic variable (H03H 7/27 takes precedence)

H03H 7/251 ・・・{the element being a thermistor}

H03H 7/253 ・・・{the element being a diode}

H03H 7/255 ・・・・{the element being a PIN diode}

H03H 7/256 ・・・・{the element being a VARACTOR diode}

H03H 7/258 ・・・{using a galvano-magnetic device}

H03H 7/27 ・・comprising a photo-electric element

H03H 7/30 ・Time-delay networks {(analogue shift registers G11C 27/04)}

H03H 7/32 ・・with lumped inductance and capacitance

H03H 7/325 ・・・{Adjustable networks}

H03H 7/34 ・・with lumped and distributed reactance

H03H 7/345 ・・・{Adjustable networks}

H03H 7/38 ・Impedance-matching networks

H03H 7/383 ・・{comprising distributed impedance elements together with lumped impedance elements}

H03H 7/40 ・・Automatic matching of load impedance to source impedance

H03H 7/42 ・Balance/unbalance networks

H03H 7/422 ・・{comprising distributed impedance elements together with lumped impedance elements}

H03H 7/425 ・・{Balance-balance networks}

H03H 7/427 ・・・{Common-mode filters (H02J 3/01 and H02M 1/126 takes precedence)}

H03H 7/46 ・Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source (for use in multiplex transmission systems H04J 1/00)

H03H 7/461 ・・{particularly adapted for use in common antenna systems}

H03H 7/463 ・・{Duplexers}

H03H 7/465 ・・・{having variable circuit topology, e.g. including switches}

H03H 7/466 ・・{particularly adapted as input circuit for receivers}

H03H 7/468 ・・{particularly adapted as coupling circuit between transmitters and antennas}

H03H 7/48 ・Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source (phase shifters providing two or more output signals H03H 7/21)

H03H 7/482 ・・{particularly adapted for use in common antenna systems}

H03H 7/485 ・・{particularly adapted as input circuit for receivers}

H03H 7/487 ・・{particularly adapted as coupling circuit between transmitters and antennas}

H03H 7/52 ・One-way transmission networks, i.e. unilines

H03H 7/54 ・Modifications of networks to reduce influence of variations of temperature

H03H 9/00 Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators (making single crystals C30B; selection of materials thereof H01L; piezo-electric, electrostrictive or magnetostrictive devices per se H01L 41/00; electromechanical transducers H04R)

H03H 9/0004 ・{Impedance-matching networks (H03H 9/145 takes precedence)}

H03H 9/0009 ・・{using surface acoustic wave devices}

H03H 9/0014 ・・{using bulk acoustic wave devices}

H03H 9/0023 ・{Balance-unbalance or balance-balance networks}

H03H 9/0028 ・・{using surface acoustic wave devices}

H03H 9/0033 ・・・{having one acoustic track only}

H03H 9/0038 ・・・・{the balanced terminals being on the same side of the track}

H03H 9/0042 ・・・・{the balanced terminals being on opposite sides of the track}

H03H 9/0047 ・・・{having two acoustic tracks (H03H 9/008, H03H 9/0085 take precedence)}

H03H 9/0052 ・・・・{being electrically cascaded}

H03H 9/0057 ・・・・・{the balanced terminals being on the same side of the tracks}

H03H 9/0061 ・・・・・{the balanced terminals being on opposite sides of the tracks}

H03H 9/0066 ・・・・{being electrically parallel}

H03H 9/0071 ・・・・・{the balanced terminals being on the same side of the tracks}

H03H 9/0076 ・・・・・{the balanced terminals being on opposite sides of the tracks}

H03H 9/008 ・・・{having three acoustic tracks (H03H 9/0085 takes precedence)}

H03H 9/0085 ・・・{having four acoustic tracks}

H03H 9/009 ・・・・{Lattice filters}

H03H 9/0095 ・・{using bulk acoustic wave devices}

H03H 9/02 ・Details

H03H 9/02007 ・・{of bulk acoustic wave devices}

H03H 9/02015 ・・・{Characteristics of piezoelectric layers, e.g. cutting angles}

H03H 9/02023 ・・・・{consisting of quartz}

H03H 9/02031 ・・・・{consisting of ceramic}

H03H 9/02039 ・・・・{consisting of a material from the crystal group 32, e.g. langasite, langatate, langanite}

H03H 9/02047 ・・・{Treatment of substrates}

H03H 9/02055 ・・・・{of the surface including the back surface}

H03H 9/02062 ・・・{Details relating to the vibration mode}

H03H 9/0207 ・・・・{the vibration mode being harmonic}

H03H 9/02078 ・・・・{the vibration mode being overmoded}

H03H 9/02086 ・・・{Means for compensation or elimination of undesirable effects}

H03H 9/02094 ・・・・{of adherence}

H03H 9/02102 ・・・・{of temperature influence (cutting angles H03H 9/02015)}

H03H 9/0211 ・・・・{of reflections}

H03H 9/02118 ・・・・{of lateral leakage between adjacent resonators}

H03H 9/02125 ・・・・{of parasitic elements}

H03H 9/02133 ・・・・{of stress}

H03H 9/02141 ・・・・{of electric discharge due to pyroelectricity}

H03H 9/02149 ・・・・{of ageing changes of characteristics, e.g. electro-acousto-migration}

H03H 9/02157 ・・・{Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness}

H03H 9/0222 ・・{of interface-acoustic, boundary, pseudo-acoustic or Stonely wave devices}

H03H 9/02228 ・・{Guided bulk acoustic wave devices or Lamb wave devices having interdigital transducers situated in parallel planes on either side of a piezoelectric layer}

H03H 9/02236 ・・{of surface skimming bulk wave devices}

H03H 9/02244 ・・{of micro-electro-mechanical resonators}

H03H 9/02259 ・・・{Driving or detection means}

H03H 9/02275 ・・・・{Comb electrodes}

H03H 9/02338 ・・・{Suspension means}

H03H 9/02362 ・・・・{Folded-flexure}

H03H 9/02377 ・・・・・{Symmetric folded-flexure}

H03H 9/02393 ・・・{Post-fabrication trimming of parameters, e.g. resonance frequency, Q factor}

H03H 9/02401 ・・・・{by annealing}

H03H 9/02409 ・・・・{by application of a DC-bias voltage (H03H 9/02417 takes precedence)}

H03H 9/02417 ・・・・{involving adjustment of the transducing gap}

H03H 9/02425 ・・・・・{by electrostatically pulling the beam}

H03H 9/02433 ・・・{Means for compensation or elimination of undesired effects}

H03H 9/02448 ・・・・{of temperature influence}

H03H 9/02535 ・・{of surface acoustic wave devices}

H03H 9/02543 ・・・{Characteristics of substrate, e.g. cutting angles}

H03H 9/02551 ・・・・{of quartz substrates}

H03H 9/02559 ・・・・{of lithium niobate or lithium-tantalate substrates}

H03H 9/02566 ・・・・{of semiconductor substrates}

H03H 9/02574 ・・・・{of combined substrates, multilayered substrates, piezo-electrical layers on not-piezo- electrical substrate}

H03H 9/02582 ・・・・{of diamond substrates}

H03H 9/0259 ・・・・{of langasite substrates}

H03H 9/02598 ・・・・{of langatate substrates}

H03H 9/02606 ・・・・{of langanite substrates}

H03H 9/02614 ・・・{Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves}

H03H 9/02622 ・・・・{of the surface, including back surface}

H03H 9/02629 ・・・・{of the edges}

H03H 9/02637 ・・・{Details concerning reflective or coupling arrays}

H03H 9/02645 ・・・・{Waffle-iron or dot arrays}

H03H 9/02653 ・・・・{Grooves or arrays buried in the substrate}

H03H 9/02661 ・・・・・{being located inside the interdigital transducers}

H03H 9/02669 ・・・・{Edge reflection structures, i.e. resonating structures without metallic reflectors, e.g. Bleustein-Gulyaev-Shimizu (BGS), shear horizontal (SH), shear transverse (ST), Love waves devices}

H03H 9/02677 ・・・・・{having specially shaped edges, e.g. stepped, U-shaped edges}

H03H 9/02685 ・・・・{Grating lines having particular arrangements}

H03H 9/02692 ・・・・・{Arched grating lines}

H03H 9/027 ・・・・・・{U-shaped grating lines}

H03H 9/02708 ・・・・・{Shifted grating lines}

H03H 9/02716 ・・・・・{Tilted, fan shaped or slanted grating lines}

H03H 9/02724 ・・・・・{Comb like grating lines}

H03H 9/02732 ・・・・・・{Bilateral comb like grating lines}

H03H 9/0274 ・・・・・{Intra-transducers grating lines}

H03H 9/02748 ・・・・・・{Dog-legged reflectors}

H03H 9/02755 ・・・・・・{Meandering floating or grounded grating lines}

H03H 9/02763 ・・・・・{Left and right side electrically coupled reflectors}

H03H 9/02771 ・・・・・{Reflector banks}

H03H 9/02779 ・・・・{Continuous surface reflective arrays}

H03H 9/02787 ・・・・・{having wave guide like arrangements}

H03H 9/02795 ・・・・{Multi-strip couplers as track changers}

H03H 9/02803 ・・・・{Weighted reflective structures}

H03H 9/02811 ・・・・・{Chirped reflective or coupling arrays}

H03H 9/02818 ・・・{Means for compensation or elimination of undesirable effects}

H03H 9/02826 ・・・・{of adherence}

H03H 9/02834 ・・・・{of temperature influence (cut angles H03H 9/02543)}

H03H 9/02842 ・・・・{of reflections (H03H 9/6406 takes precedence)}

H03H 9/0285 ・・・・・{of triple transit echo}

H03H 9/02858 ・・・・{of wave front distortion}

H03H 9/02866 ・・・・{of bulk wave excitation and reflections}

H03H 9/02874 ・・・・{of direct coupling between input and output transducers}

H03H 9/02881 ・・・・{of diffraction of wave beam}

H03H 9/02889 ・・・・{of influence of mass loading}

H03H 9/02897 ・・・・{of strain or mechanical damage, e.g. strain due to bending influence}

H03H 9/02905 ・・・・{Measures for separating propagation paths on substrate}

H03H 9/02913 ・・・・{Measures for shielding against electromagnetic fields (shielding of electrical components in general H05K 9/00)}

H03H 9/02921 ・・・・{Measures for preventing electric discharge due to pyroelectricity}

H03H 9/02929 ・・・・{of ageing changes of characteristics, e.g. electro-acousto-migration}

H03H 9/02937 ・・・・{of chemical damage, e.g. corrosion}

H03H 9/02944 ・・・・{of ohmic loss}

H03H 9/02952 ・・・・{of parasitic capacitance}

H03H 9/0296 ・・・{Surface acoustic wave [SAW} devices having both acoustic and non-acoustic properties]

H03H 9/02968 ・・・・{with optical devices (mounting in enclosures H03H 9/12)}

H03H 9/02976 ・・・・{with semiconductor devices}

H03H 9/02984 ・・・{Protection measures against damaging}

H03H 9/02992 ・・・{Details of bus bars, contact pads or other electrical connections for finger electrodes}

H03H 9/05 ・・Holders; Supports

H03H 9/0504 ・・・{for bulk acoustic wave devices}

H03H 9/0509 ・・・・{consisting of adhesive elements}

H03H 9/0514 ・・・・{consisting of mounting pads or bumps}

H03H 9/0519 ・・・・・{for cantilever (H03H 9/1021 takes precedence)}

H03H 9/0523 ・・・・・{for flip-chip mounting}

H03H 9/0528 ・・・・{consisting of clips}

H03H 9/0533 ・・・・{consisting of wire}

H03H 9/0538 ・・・{Constructional combinations of supports or holders with electromechanical or other electronic elements}

H03H 9/0542 ・・・・{consisting of a lateral arrangement (H03H 9/0566 takes precedence)}

H03H 9/0547 ・・・・{consisting of a vertical arrangement (H03H 9/0566 takes precedence)}

H03H 9/0552 ・・・・・{the device and the other elements being mounted on opposite sides of a common substrate}

H03H 9/0557 ・・・・・{the other elements being buried in the substrate}

H03H 9/0561 ・・・・・{consisting of a multilayered structure}

H03H 9/0566 ・・・・{for duplexers}

H03H 9/0571 ・・・・・{including bulk acoustic wave [BAW} devices]

H03H 9/0576 ・・・・・{including surface acoustic wave [SAW} devices]

H03H 9/058 ・・・{for surface acoustic wave devices}

H03H 9/0585 ・・・・{consisting of an adhesive layer}

H03H 9/059 ・・・・{consisting of mounting pads or bumps}

H03H 9/0595 ・・・{the holder support and resonator being formed in one body}

H03H 9/08 ・・・Holders with means for regulating temperature

H03H 9/09 ・・・Elastic or damping supports

H03H 9/10 ・・・Mounting in enclosures {(constructional combinations of enclosure with electromechanical and other electronic elements H03H 9/0538)}

H03H 9/1007 ・・・・{for bulk acoustic wave [BAW} devices]

H03H 9/1014 ・・・・・{the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device}

H03H 9/1021 ・・・・・・{the BAW device being of the cantilever type}

H03H 9/1028 ・・・・・・{the BAW device being held between spring terminals}

H03H 9/1035 ・・・・・{the enclosure being defined by two sealing substrates sandwiching the piezoelectric layer of the BAW device}

H03H 9/1042 ・・・・・{the enclosure being defined by a housing formed by a cavity in a resin}

H03H 9/105 ・・・・・{the enclosure being defined by a cover cap mounted on an element forming part of the BAW device}

H03H 9/1057 ・・・・{for micro-electro-mechanical devices}

H03H 9/1064 ・・・・{for surface acoustic wave [SAW} devices]

H03H 9/1071 ・・・・・{the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the SAW device }

H03H 9/1078 ・・・・・{the enclosure being defined by a foil covering the non-active sides of the SAW device}

H03H 9/1085 ・・・・・{the enclosure being defined by a non-uniform sealing mass covering the non-active sides of the BAW device}

H03H 9/1092 ・・・・・{the enclosure being defined by a cover cap mounted on an element forming part of the surface acoustic wave [SAW} device on the side of the IDT`s]

H03H 9/12 ・・・・for networks with interaction of optical and acoustic waves

H03H 9/125 ・・Driving means, e.g. electrodes, coils

H03H 9/13 ・・・for networks consisting of piezo-electric or electrostrictive materials (H03H 9/145 takes precedence)

H03H 9/131 ・・・・{consisting of a multilayered structure}

H03H 9/132 ・・・・{characterized by a particular shape}

H03H 9/133 ・・・・{for electromechanical delay lines or filters}

H03H 9/135 ・・・for networks consisting of magnetostrictive materials (H03H 9/145 takes precedence)

H03H 9/145 ・・・for networks using surface acoustic waves

H03H 9/14502 ・・・・{Surface acoustic wave [SAW} transducers for a particular purpose]

H03H 9/14505 ・・・・・{Unidirectional SAW transducers}

H03H 9/14508 ・・・・・{Polyphase SAW} transducers]

H03H 9/14511 ・・・・・{SAW transducers for non-piezoelectric substrates}

H03H 9/14514 ・・・・・{Broad band transducers}

H03H 9/14517 ・・・・{Means for weighting}

H03H 9/1452 ・・・・・{by finger overlap length, apodisation}

H03H 9/14523 ・・・・・{Capacitive tap weighted transducers}

H03H 9/14526 ・・・・・{Finger withdrawal}

H03H 9/14529 ・・・・・{Distributed tap}

H03H 9/14532 ・・・・・・{Series weighting; Transverse weighting}

H03H 9/14535 ・・・・・・{Position weighting}

H03H 9/14538 ・・・・{Formation}

H03H 9/14541 ・・・・・{Multilayer finger or busbar electrode}

H03H 9/14544 ・・・・{Transducers of particular shape or position (weighting H03H 9/14517)}

H03H 9/14547 ・・・・・{Fan shaped; Tilted; Shifted; Slanted; Tapered; Arched; Stepped finger transducers}

H03H 9/1455 ・・・・・{constituted of N parallel or series transducers}

H03H 9/14552 ・・・・・{comprising split fingers}

H03H 9/14555 ・・・・・{Chirped transducers (H03H 9/6406 takes precedence)}

H03H 9/14558 ・・・・・{Slanted, tapered or fan shaped transducers (H03H 9/14561, H03H 9/14564 take precedence)}

H03H 9/14561 ・・・・・{Arched, curved or ring shaped transducers}

H03H 9/14564 ・・・・・{Shifted fingers transducers}

H03H 9/14567 ・・・・・・{Stepped-fan shaped transducers}

H03H 9/1457 ・・・・・{Transducers having different finger widths}

H03H 9/14573 ・・・・・{Arrow type transducers}

H03H 9/14576 ・・・・・{Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger}

H03H 9/14579 ・・・・・・{the last fingers having a different shape}

H03H 9/14582 ・・・・・・{the last fingers having a different pitch}

H03H 9/14585 ・・・・・・{the last fingers being split}

H03H 9/14588 ・・・・・{Horizontally-split transducers}

H03H 9/14591 ・・・・・{Vertically-split transducers}

H03H 9/14594 ・・・・・{Plan-rotated or plan-tilted transducers}

H03H 9/14597 ・・・・{Matching SAW transducers to external electrical circuits}

H03H 9/15 ・Constructional features of resonators consisting of piezo-electric or electrostrictive material (H03H 9/25 takes precedence)

H03H 9/17 ・・having a single resonator (crystal tuning forks H03H 9/21)

H03H 9/171 ・・・{implemented with thin-film techniques, i.e. of the film bulk acoustic resonator (FBAR) type}

H03H 9/172 ・・・・{Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume}

H03H 9/173 ・・・・・{Air-gaps}

H03H 9/174 ・・・・・{Membranes}

H03H 9/175 ・・・・・{Acoustic mirrors}

H03H 9/176 ・・・{consisting of ceramic material (H03H 9/177, H03H 9/178 take precedence)}

H03H 9/177 ・・・{of the energy-trap type}

H03H 9/178 ・・・{of a laminated structure of multiple piezoelectric layers with inner electrodes}

H03H 9/19 ・・・consisting of quartz

H03H 9/205 ・・having multiple resonators (crystal tuning forks H03H 9/21)

H03H 9/21 ・・Crystal tuning forks

H03H 9/215 ・・・consisting of quartz

H03H 9/22 ・Constructional features of resonators consisting of magnetostrictive material

H03H 9/24 ・Constructional features of resonators of material which is not piezo-electric, electrostrictive, or magnetostrictive

H03H 9/2405 ・・{of micro-electro-mechanical resonators}

H03H 9/2426 ・・・{in combination with other electronic elements}

H03H 9/2431 ・・・{Ring resonators}

H03H 9/2436 ・・・{Disk resonators}

H03H 9/2447 ・・・{Beam resonators (H03H 9/2468 takes precedence)}

H03H 9/2452 ・・・・{Free-free beam resonators}

H03H 9/2457 ・・・・{Clamped-free beam resonators}

H03H 9/2463 ・・・・{Clamped-clamped beam resonators}

H03H 9/2468 ・・・{Tuning fork resonators}

H03H 9/2473 ・・・・{Double-Ended Tuning Fork (DETF) resonators}

H03H 9/2478 ・・・・{Single-Ended Tuning Fork resonators}

H03H 9/2484 ・・・・・{with two fork tines, e.g. Y-beam cantilever}

H03H 9/2489 ・・・・・{with more than two fork tines}

H03H 9/2494 ・・・・{H-shaped, i.e. two tuning forks with common base}

H03H 9/25 ・Constructional features of resonators using surface acoustic waves {(devices for manipulating acoustic surface waves in general G10K 11/36)}

H03H 9/30 ・Time-delay networks

H03H 9/36 ・・with non-adjustable delay time (H03H 9/40, H03H 9/42 take precedence)

H03H 9/38 ・・with adjustable delay time (H03H 9/40, H03H 9/42 take precedence)

H03H 9/40 ・・Frequency dependent delay lines, e.g. dispersive delay lines (H03H 9/42 takes precedence)

H03H 9/42 ・・using surface acoustic waves {(devices for manipulating acoustic surface waves in general G10K 11/36)}

H03H 9/423 ・・・{with adjustable delay time}

H03H 9/426 ・・・{Magneto-elastic surface waves}

H03H 9/44 ・・・Frequency dependent delay lines, e.g. dispersive delay lines

H03H 9/46 ・Filters (multiple-port electromechanical filters H03H 9/70)

H03H 9/462 ・・{Micro-electro-mechanical filters}

H03H 9/465 ・・・{in combination with other electronic elements}

H03H 9/467 ・・・{Post-fabrication trimming of parameters, e.g. center frequency}

H03H 9/48 ・・Coupling means therefor

H03H 9/485 ・・・{for micro-electro-mechanical filters}

H03H 9/50 ・・・Mechanical coupling means

H03H 9/505 ・・・・{for micro-electro-mechanical filters}

H03H 9/52 ・・・Electric coupling means

H03H 9/525 ・・・・{for micro-electro-mechanical filters}

H03H 9/54 ・・comprising resonators of piezo-electric or electrostrictive material (H03H 9/64 takes precedence)

H03H 9/542 ・・・{including passive elements (H03H 9/545 takes precedence)}

H03H 9/545 ・・・{including active elements}

H03H 9/547 ・・・{Notch filters, e.g. notch BAW or thin film resonator filters }

H03H 9/56 ・・・Monolithic crystal filters

H03H 9/562 ・・・・{comprising a ceramic piezoelectric layer}

H03H 9/564 ・・・・{implemented with thin-film techniques}

H03H 9/566 ・・・・{Electric coupling means therefor (H03H 9/0095 takes precedence)}

H03H 9/568 ・・・・・{consisting of a ladder configuration}

H03H 9/58 ・・・Multiple crystal filters

H03H 9/581 ・・・・{comprising ceramic piezoelectric layers}

H03H 9/582 ・・・・{implemented with thin-film techniques}

H03H 9/583 ・・・・・{comprising a plurality of piezoelectric layers acoustically coupled}

H03H 9/584 ・・・・・・{Coupled Resonator Filters (CFR)}

H03H 9/585 ・・・・・・{Stacked Crystal Filters (SCF)}

H03H 9/586 ・・・・・{Means for mounting to a substrate, i.e. means constituting the material interface confining the waves to a volume}

H03H 9/587 ・・・・・・{Air-gaps}

H03H 9/588 ・・・・・・{Membranes}

H03H 9/589 ・・・・・・{Acoustic mirrors}

H03H 9/60 ・・・・Electric coupling means therefor {(H03H 9/0095 takes precedence)}

H03H 9/605 ・・・・・{consisting of a ladder configuration}

H03H 9/62 ・・comprising resonators of magnetostrictive material (H03H 9/64 takes precedence)

H03H 9/64 ・・using surface acoustic waves

H03H 9/6403 ・・・{Programmable filters}

H03H 9/6406 ・・・{Filters characterised by a particular frequency characteristic}

H03H 9/6409 ・・・・{SAW notch filters}

H03H 9/6413 ・・・・{SAW comb filters}

H03H 9/6416 ・・・・{SAW matched filters, e.g. surface acoustic wave compressors, chirped or coded surface acoustic wave filters}

H03H 9/642 ・・・・・{SAW transducers details for remote interrogation systems, e.g. surface acoustic wave transducers details for ID-tags (remote interrogation systems per se G06K 7/10009, G01S 13/74)}

H03H 9/6423 ・・・{Means for obtaining a particular transfer characteristic}

H03H 9/6426 ・・・・{Combinations of the characteristics of different transducers}

H03H 9/643 ・・・・{the transfer characteristic being determined by reflective or coupling array characteristics}

H03H 9/6433 ・・・・{Coupled resonator filters}

H03H 9/6436 ・・・・・{having one acoustic track only}

H03H 9/644 ・・・・・{having two acoustic tracks}

H03H 9/6443 ・・・・・・{being acoustically coupled}

H03H 9/6446 ・・・・・・・{by floating multistrip couplers (H03H 9/645, H03H 9/6453 take precedence)}

H03H 9/645 ・・・・・・・{by grating reflectors overlapping both tracks}

H03H 9/6453 ・・・・・・・{by at least an interdigital transducer overlapping both tracks}

H03H 9/6456 ・・・・・・{being electrically coupled}

H03H 9/6459 ・・・・・・・{via one connecting electrode}

H03H 9/6463 ・・・・・・・・{the tracks being electrically cascaded}

H03H 9/6466 ・・・・・・・・・{each track containing more than two transducers}

H03H 9/6469 ・・・・・・・{via two connecting electrodes}

H03H 9/6473 ・・・・・・・・{the electrodes being electrically interconnected}

H03H 9/6476 ・・・・・・・・{the tracks being electrically parallel}

H03H 9/6479 ・・・・・{Capacitively coupled SAW resonator filters}

H03H 9/6483 ・・・・・{Ladder SAW filters}

H03H 9/6486 ・・・・・{having crossing or intersecting acoustic tracks, e.g. intersection in a perpendicular or diagonal orientation}

H03H 9/6489 ・・・{Compensation of undesirable effects}

H03H 9/6493 ・・・・{Side lobe suppression}

H03H 9/6496 ・・・・{Reducing ripple in transfer characteristic}

H03H 9/66 ・Phase shifters

H03H 9/68 ・・using surface acoustic waves

H03H 9/70 ・Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source

H03H 9/703 ・・{Networks using bulk acoustic wave devices}

H03H 9/706 ・・・{Duplexers}

H03H 9/72 ・・Networks using surface acoustic waves

H03H 9/725 ・・・{Duplexers}

H03H 9/74 ・Multiple-port networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source (networks for phase shifting H03H 9/66)

H03H 9/76 ・・Networks using surface acoustic waves

H03H 11/00 Networks using active elements

H03H 11/02 ・Multiple-port networks

H03H 11/025 ・・{using current conveyors}

H03H 11/04 ・・Frequency selective two-port networks

H03H 11/0405 ・・・{Non-linear filters}

H03H 11/0416 ・・・{using positive impedance converters (H03H 11/08 takes precedence)}

H03H 11/0422 ・・・{using transconductance amplifiers, e.g. gmC filters}

H03H 11/0427 ・・・・{Filters using a single transconductance amplifier; Filters derived from a single transconductor filter, e.g. by element substitution, cascading, parallel connection (H03H 11/0433 to H03H11/C10 take precedence)}

H03H 11/0433 ・・・・{Two integrator loop filters (H03H 11/0455 takes precedence)}

H03H 11/0438 ・・・・・{Tow-Thomas biquad}

H03H 11/0444 ・・・・{Simulation of ladder networks}

H03H 11/045 ・・・・・{Leapfrog structures}

H03H 11/0455 ・・・・{Multiple integrator loop feedback filters}

H03H 11/0461 ・・・・{Current mode filters}

H03H 11/0466 ・・・・{Filters combining transconductance amplifiers with other active elements, e.g. operational amplifiers, transistors, voltage conveyors}

H03H 11/0472 ・・・・{Current or voltage controlled filters}

H03H 11/06 ・・・comprising means for compensation of loss

H03H 11/08 ・・・using gyrators

H03H 11/10 ・・・using negative impedance converters (H03H 11/08 takes precedence)

H03H 11/11 ・・・{using current conveyors}

H03H 11/12 ・・・using amplifiers with feedback ({H03H 11/0422}, H03H 11/08, H03H 11/10 take precedence)

H03H 11/1204 ・・・・{Distributed RC filters}

H03H 11/1208 ・・・・{comprising an electromechanical resonator}

H03H 11/1213 ・・・・{using transistor amplifiers (H03H 11/1204 takes precedence; parallel-T filters H03H 11/1295)}

H03H 11/1217 ・・・・{using a plurality of operational amplifiers (H03H 11/1204 takes precedence; parallel-T filters H03H 11/1295)}

H03H 11/1221 ・・・・・{Theory; Synthesis (H03H 11/1226 to H03H 11/1252 take precedence)}

H03H 11/1226 ・・・・・{Filters using operational amplifier poles}

H03H 11/123 ・・・・・{Modifications to reduce sensitivity}

H03H 11/1234 ・・・・・{Modifications to reduce detrimental influences of amplifier imperfections, e.g. limited gain-bandwith product, limited input impedance}

H03H 11/1239 ・・・・・{Modifications to reduce influence of variations of temperature}

H03H 11/1243 ・・・・・{Simulation of ladder networks}

H03H 11/1247 ・・・・・・{Leapfrog structures}

H03H 11/1252 ・・・・・{Two integrator-loop-filters}

H03H 11/1256 ・・・・・・{Tow-Thomas biquad}

H03H 11/126 ・・・・{using a single operational amplifier (H03H 11/1204 takes precedence; parallel-T filters H03H 11/1295)}

H03H 11/1265 ・・・・・{Synthesis (H03H 11/1269 to H03H 11/1282 take precedence)}

H03H 11/1269 ・・・・・{Filters using the operational amplifier pole}

H03H 11/1273 ・・・・・{Modifications to reduce sensitivity}

H03H 11/1278 ・・・・・{Modifications to reduce detrimental influences of amplifier imperfections, e.g. limited gain-bandwith product, limited input impedance}

H03H 11/1282 ・・・・・{Modifications to reduce influence of variations of temperature}

H03H 11/1286 ・・・・・{Sallen-Key biquad}

H03H 11/1291 ・・・・{Current or voltage controlled filters}

H03H 11/1295 ・・・・{Parallel-T filters}

H03H 11/14 ・・・using electro-optic devices

H03H 11/16 ・・Networks for phase shifting

H03H 11/18 ・・・Two-port phase shifters providing a predetermined phase shift, e.g. "all-pass" filters

H03H 11/20 ・・・Two-port phase shifters providing an adjustable phase shift

H03H 11/22 ・・・providing two or more phase shifted output signals, e.g. n-phase output

H03H 11/24 ・・Frequency-independent attenuators

H03H 11/245 ・・・{using field-effect transistor}

H03H 11/26 ・・Time-delay networks (analogue shift registers G11C 27/04)

H03H 11/265 ・・・{with adjustable delay}

H03H 11/28 ・・Impedance matching networks

H03H 11/30 ・・・Automatic matching of source impedance to load impedance

H03H 11/32 ・・Balance-unbalance networks

H03H 11/34 ・・Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source (for use in multiplex transmission systems H04J 1/00)

H03H 11/342 ・・・{particularly adapted for use in common antenna systems}

H03H 11/344 ・・・{Duplexers}

H03H 11/346 ・・・{particularly adapted as input circuit for receivers}

H03H 11/348 ・・・{particularly adapted as coupling circuit between transmitters and antenna}

H03H 11/36 ・・Networks for connecting several sources or loads, working on the same frequency band, to a common load or source (phase shifters providing two or more output signals H03H 11/22)

H03H 11/362 ・・・{particularly adapted for use in common antenna systems}

H03H 11/365 ・・・{particularly adapted as input circuit for receivers}

H03H 11/367 ・・・{particularly adapted as coupling circuit between transmitters and antenna}

H03H 11/38 ・・One-way transmission networks, i.e. unilines

H03H 11/40 ・・Impedance converters

H03H 11/405 ・・・{Positive impedance converters (H03H 11/42 takes precedence; used in frequency selective networks H03H 11/0416)}

H03H 11/42 ・・・Gyrators (used in frequency selective networks H03H 11/08)

H03H 11/44 ・・・Negative impedance converters (H03H 11/42 takes precedence; used in frequency selective networks H03H 11/10)

H03H 11/46 ・One-port networks

H03H 11/48 ・・simulating reactances

H03H 11/481 ・・・{Simulating capacitances}

H03H 11/483 ・・・{Simulating capacitance multipliers}

H03H 11/485 ・・・{Simulating inductances using operational amplifiers}

H03H 11/486 ・・・{Simulating inductances using transconductance amplifiers}

H03H 11/488 ・・・{Simulating inductances using current conveyors}

H03H 11/50 ・・・using gyrators

H03H 11/52 ・・simulating negative resistances

H03H 11/525 ・・・{Simulating frequency dependent negative resistance [FDNR}]

H03H 11/53 ・・{simulating resistances; simulating resistance multipliers}

H03H 11/54 ・Modifications of networks to reduce influence of variations of temperature

H03H 15/00 Transversal filters (electromechanical filters H03H 9/46, H03H 9/70)

H03H 15/02 ・using analogue shift registers

H03H 15/023 ・・{with parallel-input configuration}

H03H 17/00 Networks using digital techniques

H03H 17/0009 ・{Time-delay networks}

H03H 17/0018 ・・{Realizing a fractional delay}

H03H 17/0027 ・・・{by means of a non-recursive filter}

H03H 17/0036 ・・・{by means of a recursive filter}

H03H 17/0045 ・{Impedance matching networks}

H03H 17/0054 ・{Attenuators}

H03H 17/0063 ・{R, L, C, simulating networks}

H03H 17/02 ・Frequency selective networks {(digital computers for complex mathematical operations G06F 17/10)}

H03H 17/0201 ・・{Wave digital filters}

H03H 17/0202 ・・{Two or more dimensional filters; Filters for complex signals (multidimensional convolutions G06F 17/153)}

H03H 17/0211 ・・{using specific transformation algorithms, e.g. WALSH functions, Fermat transforms, Mersenne transforms, polynomial transforms, Hilbert transforms (correlation computation G06F 17/156)}

H03H 17/0213 ・・・{Frequency domain filters using Fourier transforms}

H03H 17/0216 ・・・{Quefrency domain filters}

H03H 17/0217 ・・・{Number theoretic transforms}

H03H 17/0219 ・・{Compensation of undesirable effects, e.g. quantisation noise, overflow (stability problems H03H 17/0461)}

H03H 17/0223 ・・{Computation saving measures; Accelerating measures (computations per se G06F)}

H03H 17/0225 ・・・{Measures concerning the multipliers}

H03H 17/0226 ・・・・{comprising look-up tables}

H03H 17/0227 ・・・{Measures concerning the coefficients}

H03H 17/0229 ・・・・{reducing the number of taps}

H03H 17/023 ・・・・{reducing the wordlength, the possible values of coefficients}

H03H 17/0233 ・・・{Measures concerning the signal representation}

H03H 17/0235 ・・・・{reducing the wordlength of signals}

H03H 17/0236 ・・・・{using codes}

H03H 17/0238 ・・・{Measures concerning the arithmetic used (performing computations G06F 7/60)}

H03H 17/0239 ・・・・{Signed digit arithmetic}

H03H 17/0241 ・・・・{Distributed arithmetic}

H03H 17/0242 ・・・・{Residue number arithmetic}

H03H 17/0248 ・・{Filters characterised by a particular frequency response or filtering method}

H03H 17/025 ・・・{Notch filters}

H03H 17/0251 ・・・{Comb filters}

H03H 17/0252 ・・・{Elliptic filters}

H03H 17/0254 ・・・{Matched filters}

H03H 17/0255 ・・・{Filters based on statistics (adaptive filters H03H 21/0029)}

H03H 17/0257 ・・・・{KALMAN filters}

H03H 17/0258 ・・・・{ARMA filters}

H03H 17/026 ・・・{Averaging filters}

H03H 17/0261 ・・・{Non linear filters}

H03H 17/0263 ・・・・{Rank order filters}

H03H 17/0264 ・・・{Filter sets with mutual related characteristics}

H03H 17/0266 ・・・・{Filter banks}

H03H 17/0267 ・・・・・{comprising non-recursive filters}

H03H 17/0269 ・・・・・{comprising recursive filters}

H03H 17/027 ・・・・{Complementary filters; Phase complementary filters}

H03H 17/0272 ・・・・{Quadrature mirror filters}

H03H 17/0273 ・・・・{Polyphase filters}

H03H 17/0275 ・・・・・{comprising non-recursive filters}

H03H 17/0276 ・・・・・・{having two phases}

H03H 17/0277 ・・・・・{comprising recursive filters}

H03H 17/0279 ・・・・・・{having two phases}

H03H 17/028 ・・・{Polynomial filters}

H03H 17/0282 ・・・{Sinc or gaussian filters (H03H 17/0671 takes precedence)}

H03H 17/0283 ・・{Filters characterised by the filter structure (H03H 17/0202, H03H 17/0219 to H03H 17/0248 take precedence)}

H03H 17/0285 ・・・{Ladder or lattice filters}

H03H 17/0286 ・・・{Combinations of filter structures}

H03H 17/0288 ・・・・{Recursive, non-recursive, ladder, lattice structures}

H03H 17/0289 ・・・・{Digital and active filter structures}

H03H 17/0291 ・・・・{Digital and sampled data filters}

H03H 17/0292 ・・・{Time multiplexed filters; Time sharing filters}

H03H 17/0294 ・・{Variable filters; Programmable filters}

H03H 17/04 ・・Recursive filters

H03H 17/0405 ・・・{comprising a ROM addressed by the input and output data signals}

H03H 17/0411 ・・・{using DELTA modulation}

H03H 17/0416 ・・・{with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing}

H03H 17/0422 ・・・・{the input and output signals being derived from two separate clocks, i.e. asynchronous sample rate conversion}

H03H 17/0427 ・・・・{characterized by the ratio between the input-sampling and output-delivery frequencies}

H03H 17/0433 ・・・・・{the ratio being arbitrary or irrational}

H03H 17/0438 ・・・・・{the ratio being integer}

H03H 17/0444 ・・・・・・{where the output-delivery frequency is higher than the input sampling frequency, i.e. interpolation}

H03H 17/045 ・・・・・・{where the output-delivery frequency is lower than the input sampling frequency, i.e. decimation}

H03H 17/0455 ・・・・・{the ratio being rational}

H03H 17/0461 ・・・{Quantisation; Rounding; Truncation; Overflow oscillations or limit cycles eliminating measures}

H03H 17/06 ・・Non-recursive filters

H03H 17/0607 ・・・{comprising a ROM addressed by the input data signals}

H03H 17/0614 ・・・{using Delta-modulation}

H03H 17/0621 ・・・{with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing}

H03H 17/0628 ・・・・{the input and output signals being derived from two separate clocks, i.e. asynchronous sample rate conversion}

H03H 17/0635 ・・・・{characterized by the ratio between the input-sampling and output-delivery frequencies}

H03H 17/0642 ・・・・・{the ratio being arbitrary or irrational}

H03H 17/065 ・・・・・{the ratio being integer}

H03H 17/0657 ・・・・・・{where the output-delivery frequency is higher than the input sampling frequency, i.e. interpolation}

H03H 17/0664 ・・・・・・{where the output-delivery frequency is lower than the input sampling frequency, i.e. decimation}

H03H 17/0671 ・・・・・{Cascaded integrator-comb [CIC} filters]

H03H 17/0685 ・・・・・{the ratio being rational}

H03H 17/08 ・Networks for phase shifting

H03H 19/00 Networks using time-varying elements, e.g. N-path filters

H03H 19/002 ・{N-path filters}

H03H 19/004 ・{Switched capacitor networks}

H03H 19/006 ・・{simulating one-port networks}

H03H 19/008 ・{with variable switch closing time}

H03H 21/00 Adaptive networks

H03H 21/0001 ・{Analogue adaptive filters}

H03H 21/0003 ・・{comprising CCD devices}

H03H 21/0005 ・・{comprising SAW devices}

H03H 21/0007 ・・{comprising switched capacitor [SC} devices]

H03H 21/0012 ・{Digital adaptive filters}

H03H 21/0014 ・・{Lattice filters}

H03H 21/0016 ・・{Non linear filters}

H03H 21/0018 ・・{Matched filters}

H03H 21/002 ・・{Filters with a particular frequency response (H03H 21/0014 to H03H 21/0018 take precedence)}

H03H 21/0021 ・・・{Notch filters}

H03H 21/0023 ・・・{Comb filters}

H03H 21/0025 ・・{Particular filtering methods}

H03H 21/0027 ・・・{filtering in the frequency domain}

H03H 21/0029 ・・・{based on statistics}

H03H 21/003 ・・・・{KALMAN filters}

H03H 21/0032 ・・・・{ARMA filters}

H03H 21/0043 ・・{Adaptive algorithms}

H03H 21/0067 ・・{Means or methods for compensation of undesirable effects}

H03H 2001/00 Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network (constructional details of electromechanical transducers H03H 9/00)

H03H 2001/0014 ・Capacitor filters, i.e. capacitors whose parasitic inductance is of relevance to consider it as filter

H03H 2001/0021 ・Constructional details

H03H 2001/0028 ・・RFI filters with housing divided in two bodies

H03H 2001/0035 ・・Wound magnetic core

H03H 2001/0042 ・・Wound, ring or feed-through type capacitor

H03H 2001/005 ・・Wound, ring or feed-through type inductor

H03H 2001/0057 ・・comprising magnetic material

H03H 2001/0064 ・・comprising semiconductor material

H03H 2001/0071 ・・comprising zig-zag inductor

H03H 2001/0078 ・・comprising spiral inductor on a substrate

H03H 2001/0085 ・・Multilayer, e.g. LTCC, HTCC, green sheets (inside PCB filters H05K)

H03H 2001/0092 ・Inductor filters, i.e. inductors whose parasitic capacitance is of relevance to consider it as filter

H03H 2003/00 Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators

H03H 2003/007 ・for the manufacture of electromechanical resonators or networks

H03H 2003/0071 ・・of bulk acoustic wave and surface acoustic wave elements in the same process

H03H 2003/02 ・・for the manufacture of piezo-electric or electrostrictive resonators or networks (H03H 3/08 takes precedence)

H03H 2003/021 ・・・the resonators or networks being of the air-gap type

H03H 2003/022 ・・・the resonators or networks being of the cantilever type

H03H 2003/023 ・・・the resonators or networks being of the membrane type

H03H 2003/025 ・・・the resonators or networks comprising an acoustic mirror

H03H 2003/026 ・・・the resonators or networks being of the tuning fork type

H03H 2003/027 ・・・the resonators or networks being of the micro-electro-mechanical [MEMS] type

H03H 2003/028 ・・・for obtaining desired values of other parameters

H03H 2003/04 ・・・for obtaining desired frequency or temperature coefficient

H03H 2003/0407 ・・・・Temperature coefficient

H03H 2003/0414 ・・・・Resonance frequency

H03H 2003/0421 ・・・・・Modification of the thickness of an element

H03H 2003/0428 ・・・・・・of an electrode

H03H 2003/0435 ・・・・・・of a piezoelectric layer

H03H 2003/0442 ・・・・・・of a non-piezoelectric layer

H03H 2003/045 ・・・・・Modification of the area of an element

H03H 2003/0457 ・・・・・・of an electrode

H03H 2003/0464 ・・・・・operating on an additional circuit element, e.g. a passive circuit element connected to the resonator

H03H 2003/0471 ・・・・・of a plurality of resonators at different frequencies

H03H 2003/0478 ・・・・・in a process for mass production

H03H 2003/0485 ・・・・・during the manufacture of a cantilever

H03H 2003/0492 ・・・・・during the manufacture of a tuning-fork

H03H 2007/00 Multiple-port networks comprising only passive electrical elements as network components (receiver input circuits H04B 1/18; networks simulating a length of communication cable H04B 3/40)

H03H 2007/006 ・MEMS

H03H 2007/008 ・・the MEMS being trimmable

H03H 2007/01 ・Frequency selective two-port networks

H03H 2007/013 ・・Notch or bandstop filters

H03H 2007/0192 ・・Complex filters

H03H 2007/38 ・Impedance-matching networks

H03H 2007/386 ・・Multiple band impedance matching

H03H 2009/00 Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators (making single crystals C30B; selection of materials thereof H01L; piezo-electric, electrostrictive or magnetostrictive devices per se H01L 41/00; electromechanical transducers H04R)

H03H 2009/0019 ・Surface acoustic wave multichip

H03H 2009/02 ・Details

H03H 2009/02165 ・・Tuning

H03H 2009/02173 ・・・of film bulk acoustic resonators [FBAR]

H03H 2009/02181 ・・・・by application of heat from a heat source

H03H 2009/02188 ・・・・Electrically tuning

H03H 2009/02196 ・・・・・operating on the FBAR element, e.g. by direct application of a tuning DC voltage

H03H 2009/02204 ・・・・・operating on an additional circuit element, e.g. applying a tuning DC voltage to a passive circuit element connected to the resonator

H03H 2009/02212 ・・・・Magnetically tuning

H03H 2009/02244 ・・{of micro-electro-mechanical resonators}

H03H 2009/02251 ・・・Design

H03H 2009/02259 ・・・{Driving or detection means}

H03H 2009/02267 ・・・・having dimensions of atomic scale, e.g. involving electron transfer across vibration gap

H03H 2009/02283 ・・・Vibrating means

H03H 2009/02291 ・・・・Beams

H03H 2009/02299 ・・・・・Comb-like, i.e. the beam comprising a plurality of fingers or protrusions along its length

H03H 2009/02307 ・・・・・Dog-bone-like structure, i.e. the elongated part of the "bone" is doubly clamped

H03H 2009/02314 ・・・・・forming part of a transistor structure

H03H 2009/02322 ・・・・・Material

H03H 2009/0233 ・・・・comprising perforations

H03H 2009/02338 ・・・{Suspension means}

H03H 2009/02346 ・・・・Anchors for ring resonators

H03H 2009/02354 ・・・・・applied along the periphery, e.g. at nodal points of the ring

H03H 2009/02362 ・・・・{Folded-flexure}

H03H 2009/0237 ・・・・・applied at the center

H03H 2009/02385 ・・・・Anchors for square resonators, i.e. resonators comprising a square vibrating membrane

H03H 2009/02433 ・・・{Means for compensation or elimination of undesired effects}

H03H 2009/0244 ・・・・Anchor loss

H03H 2009/02456 ・・・・Parasitic elements or effects, e.g. parasitic capacitive coupling between input and output

H03H 2009/02464 ・・・・Pull-in

H03H 2009/02472 ・・・・Stiction

H03H 2009/0248 ・・・・Strain

H03H 2009/02488 ・・・Vibration modes

H03H 2009/02496 ・・・・Horizontal, i.e. parallel to the substrate plane

H03H 2009/02503 ・・・・・Breath-like, e.g. Lam? mode, wine-glass mode

H03H 2009/02511 ・・・・Vertical, i.e. perpendicular to the substrate plane

H03H 2009/02519 ・・・・Torsional

H03H 2009/02527 ・・・・Combined

H03H 2009/15 ・Constructional features of resonators consisting of piezo-electric or electrostrictive material (H03H 9/25 takes precedence)

H03H 2009/155 ・・using MEMS techniques

H03H 2009/24 ・Constructional features of resonators of material which is not piezo-electric, electrostrictive, or magnetostrictive

H03H 2009/2405 ・・{of micro-electro-mechanical resonators}

H03H 2009/241 ・・・Bulk-mode MEMS resonators

H03H 2009/2415 ・・・・with concave shape [CBAR]

H03H 2009/2421 ・・・・with I shape [IBAR]

H03H 2009/2442 ・・・Square resonators

H03H 2011/00 Networks using active elements

H03H 2011/02 ・Multiple-port networks

H03H 2011/04 ・・Frequency selective two-port networks

H03H 2011/0405 ・・・{Non-linear filters}

H03H 2011/0411 ・・・・Rank order or median filters

H03H 2011/0477 ・・・using current feedback operational amplifiers

H03H 2011/0483 ・・・using operational transresistance amplifiers [OTRA]

H03H 2011/0488 ・・・Notch or bandstop filters

H03H 2011/0494 ・・・Complex filters

H03H 2015/00 Transversal filters (electromechanical filters H03H 9/46, H03H 9/70)

H03H 2015/002 ・Computation saving measures

H03H 2015/005 ・comprising capacitors implemented with MEMS technology

H03H 2015/007 ・Programmable filters

H03H 2015/026 ・Matched filters in charge domain

H03H 2017/00 Networks using digital techniques

H03H 2017/0072 ・Theoretical filter design

H03H 2017/0081 ・・of FIR filters

H03H 2017/009 ・・of IIR filters

H03H 2017/02 ・Frequency selective networks {(digital computers for complex mathematical operations G06F 17/10)}

H03H 2017/0202 ・・{Two or more dimensional filters; Filters for complex signals (multidimensional convolutions G06F 17/153)}

H03H 2017/0204 ・・・Comb filters

H03H 2017/0205 ・・・Kalman filters

H03H 2017/0207 ・・・Median filters

H03H 2017/0208 ・・・using neural networks

H03H 2017/021 ・・・Wave digital filters

H03H 2017/0211 ・・{using specific transformation algorithms, e.g. WALSH functions, Fermat transforms, Mersenne transforms, polynomial transforms, Hilbert transforms (correlation computation G06F 17/156)}

H03H 2017/0213 ・・・{Frequency domain filters using Fourier transforms}

H03H 2017/0214 ・・・・with input-sampling frequency and output-delivery frequency which differ, e.g. interpolation, extrapolation; anti-aliasing

H03H 2017/0219 ・・{Compensation of undesirable effects, e.g. quantisation noise, overflow (stability problems H03H 17/0461)}

H03H 2017/022 ・・・Rounding error

H03H 2017/0222 ・・・Phase error

H03H 2017/0223 ・・{Computation saving measures; Accelerating measures (computations per se G06F)}

H03H 2017/0227 ・・・{Measures concerning the coefficients}

H03H 2017/023 ・・・・{reducing the wordlength, the possible values of coefficients}

H03H 2017/0232 ・・・・・Canonical signed digit [CSD] or power of 2 coefficients

H03H 2017/0244 ・・・Measures to reduce settling time

H03H 2017/0245 ・・・Measures to reduce power consumption (H03H 17/0223 takes preference)

H03H 2017/0247 ・・・Parallel structures using a slower clock

H03H 2017/0294 ・・{Variable filters; Programmable filters}

H03H 2017/0295 ・・・Changing between two filter characteristics

H03H 2017/0297 ・・・Coefficients derived from input parameters

H03H 2017/0298 ・・DSP implementation

H03H 2017/04 ・・Recursive filters

H03H 2017/0461 ・・・{Quantisation; Rounding; Truncation; Overflow oscillations or limit cycles eliminating measures}

H03H 2017/0466 ・・・・Reduction of limit cycle oscillation

H03H 2017/0472 ・・・based on allpass structures

H03H 2017/0477 ・・・Direct form I

H03H 2017/0483 ・・・・Transposed

H03H 2017/0488 ・・・Direct form II

H03H 2017/0494 ・・・・Transposed

H03H 2017/06 ・・Non-recursive filters

H03H 2017/0621 ・・・{with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing}

H03H 2017/0635 ・・・・{characterized by the ratio between the input-sampling and output-delivery frequencies}

H03H 2017/0671 ・・・・・{Cascaded integrator-comb [CIC} filters]

H03H 2017/0678 ・・・・・・with parallel structure, i.e. parallel CIC [PCIC]

H03H 2017/0692 ・・・Transposed

H03H 2021/00 Adaptive networks

H03H 2021/0001 ・{Analogue adaptive filters}

H03H 2021/0009 ・・Details

H03H 2021/001 ・・・Analog multipliers

H03H 2021/0012 ・{Digital adaptive filters}

H03H 2021/0025 ・・{Particular filtering methods}

H03H 2021/0034 ・・・Blind source separation

H03H 2021/0036 ・・・・of convolutive mixtures

H03H 2021/0038 ・・・・of instantaneous mixtures

H03H 2021/004 ・・・・using state space representation

H03H 2021/0041 ・・・Subband decomposition

H03H 2021/0043 ・・{Adaptive algorithms}

H03H 2021/0045 ・・・Equation error

H03H 2021/0047 ・・・・Combined output and equation error

H03H 2021/0049 ・・・Recursive least squares algorithm

H03H 2021/005 ・・・・with forgetting factor

H03H 2021/0052 ・・・・combined with stochastic gradient algorithm

H03H 2021/0054 ・・・・・Affine projection

H03H 2021/0056 ・・・Non-recursive least squares algorithm [LMS]

H03H 2021/0058 ・・・・Block LMS, i.e. in frequency domain

H03H 2021/0059 ・・・・Delayed LMS

H03H 2021/0061 ・・・・Normalized LMS [NLMS]

H03H 2021/0063 ・・・・・Proportionate NLMS

H03H 2021/0065 ・・・・Sign-sign LMS

H03H 2021/0067 ・・{Means or methods for compensation of undesirable effects}

H03H 2021/0069 ・・・Finite wordlength

H03H 2021/007 ・・Computation saving measures; Accelerating measures

H03H 2021/0072 ・・・Measures relating to the coefficients

H03H 2021/0074 ・・・・Reduction of the update frequency

H03H 2021/0076 ・・・Measures relating to the convergence time (H03H 2021/0072 takes preference)

H03H 2021/0078 ・・・・varying the step size

H03H 2021/0079 ・・・using look-up tables

H03H 2021/0081 ・・Details

H03H 2021/0083 ・・・Shadow filter, i.e. one of two filters which are simultaneously adapted, wherein the results of adapting the shadow filter are used for adapting the other filter

H03H 2021/0085 ・・Applications

H03H 2021/0087 ・・・Prediction

H03H 2021/0089 ・・・System identification, i.e. modeling

H03H 2021/009 ・・・・with recursive filters

H03H 2021/0092 ・・・Equalization, i.e. inverse modeling

H03H 2021/0094 ・・・Interference Cancelling

H03H 2021/0096 ・・with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; anti-aliasing

H03H 2021/0098 ・Adaptive filters comprising analog and digital structures

H03H 2210/00 Indexing scheme relating to details of tunable filters

H03H 2210/01 ・Tuned parameter of filter characteristics

H03H 2210/012 ・・Centre frequency; Cut-off frequency

H03H 2210/015 ・・Quality factor or bandwidth

H03H 2210/017 ・・Amplitude, gain or attenuation

H03H 2210/02 ・Variable filter component

H03H 2210/021 ・・Amplifier, e.g. transconductance amplifier

H03H 2210/023 ・・・Tuning of transconductance via tail current source

H03H 2210/025 ・・Capacitor

H03H 2210/026 ・・Inductor

H03H 2210/028 ・・Resistor

H03H 2210/03 ・Type of tuning

H03H 2210/033 ・・Continuous

H03H 2210/036 ・・Stepwise

H03H 2210/04 ・Filter calibration method

H03H 2210/043 ・・by measuring time constant

H03H 2210/046 ・・Master -slave

H03H 2218/00 Indexing scheme relating to details of digital filters

H03H 2218/02 ・Coefficients

H03H 2218/025 ・・updated selectively, e.g. by, in the presence of noise, temporally cancelling the update and outputting a predetermined value

H03H 2218/04 ・In-phase and quadrature [I/Q] signals

H03H 2218/06 ・Multiple-input, multiple-output [MIMO]; Multiple-input, single-output [MISO]

H03H 2218/08 ・Resource sharing

H03H 2218/085 ・・Multipliers

H03H 2218/10 ・Multiplier and or accumulator units

H03H 2218/12 ・Signal conditioning

H03H 2218/14 ・Non-uniform sampling

H03H 2220/00 Indexing scheme relating to structures of digital filters

H03H 2220/02 ・Modular, e.g. cells connected in cascade

H03H 2220/04 ・Pipelined

H03H 2220/06 ・Systolic

H03H 2220/08 ・Variable filter length

H03H 2222/00 Indexing scheme relating to digital filtering methods

H03H 2222/02 ・using fuzzy logic

H03H 2222/04 ・using neural networks

H03H 2222/06 ・using wavelets

H03H 2240/00 Indexing scheme relating to filter banks

H03H 2250/00 Indexing scheme relating to dual- or multi-band filters

H03H 2260/00 Theory relating to impedance networks