WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

H03J　TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS (indicating arrangements for measuring G01D; measuring, testing G01R; remote-control in general G05, G08; automatic control or stabilisation of generators H03L)

H03J 1/00 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D)

H03J 1/0008 ・{using a central processing unit, e.g. a microprocessor (digital tuning in general H03J 5/0245)}

H03J 1/0016 ・・{Indicating arrangements (digital indication of tuning in general H03J 1/048)}

H03J 1/0025 ・・{in a remote control unit (remote control tuning in general H03J 9/00)}

H03J 1/0033 ・・{for voltage synthesis with a D/A converter}

H03J 1/0041 ・・{for frequency synthesis with counters or frequency dividers}

H03J 1/005 ・・・{in a loop}

H03J 1/0058 ・・{provided with channel identification means (arrangements for monitoring the use made of broadcast services H04H 60/31)}

H03J 1/0066 ・・・{with means for analysing the received signal strength (H03J 1/0083 takes precedence)}

H03J 1/0075 ・・・・{where the receiving frequencies of the stations are stored in a permanent memory, e.g. ROM}

H03J 1/0083 ・・・{using two or more tuners}

H03J 1/0091 ・・{provided with means for scanning over a band of frequencies (H03J 1/0058 takes precedence)}

H03J 1/02 ・Indicating arrangements {(indicating correct tuning H03J 3/12)}

H03J 1/025 ・・{with voiced announcement}

H03J 1/04 ・・with optical indicating means

H03J 1/041 ・・・{Pointers, markers, or the like, for tuning dials; Folding dials}

H03J 1/042 ・・・{Means insuring a precise reading of the dial, e.g. special scale, local illumination possibly temporary, luminous point moving with the pointer}

H03J 1/044 ・・・{Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination}

H03J 1/045 ・・・{Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like}

H03J 1/047 ・・・・{using electronic means, e.g. LED`s (display of electronic variables in general G01R 13/00, for discontinuous display G01R 13/404)}

H03J 1/048 ・・・・・{with digital indication (using a microprocessor H03J 1/0016)}

H03J 1/06 ・Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control

H03J 1/063 ・・{Special arrangements taken in correlation with the wear; Suppressing backlash; Locking in a desired position}

H03J 1/066 ・・{Constructional details regarding potentiometric setting of voltage or current variable reactances}

H03J 1/08 ・・Toothed-gear drive; Worm drive

H03J 1/10 ・・Rope drive; Chain drive

H03J 1/12 ・・Friction drive

H03J 1/14 ・・Special arrangements for fine and coarse tuning

H03J 1/16 ・・Single control means independently performing two or more functions

H03J 1/18 ・Control by auxiliary power

H03J 1/182 ・・{using a ring of magnets or the like}

H03J 1/185 ・・{the auxiliary power producing an adjustment dependent on the current intensity}

H03J 1/187 ・・{the auxiliary power balancing automatically a Wheatstone bridge or the like, that has been unbalanced by the controlling device}

H03J 1/20 ・・the auxiliary power being switched on as long as controlling current is switched on

H03J 1/22 ・・with stepping arrangements actuated by control pulses

H03J 3/00 Continuous tuning (H03J 7/00, H03J 9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J 5/00)

H03J 3/02 ・Details

H03J 3/04 ・・Arrangements for compensating for variations of physical values, e.g. temperature (automatic control of ambient conditions G05D)

H03J 3/06 ・・Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges (automatic gain control H03G)

H03J 3/08 ・・・by varying a second parameter simultaneously with the tuning, e.g. coupling bandpass filter

H03J 3/10 ・・Circuit arrangements for fine tuning, e.g. bandspreading

H03J 3/12 ・・Electrically-operated arrangements for indicating correct tuning

H03J 3/14 ・・・Visual indication, e.g. magic eye

H03J 3/16 ・・Tuning without displacement of reactive element, e.g. by varying permeability

H03J 3/18 ・・・by discharge tube or semiconductor device simulating variable reactance

H03J 3/185 ・・・・{with varactors, i.e. voltage variable reactive diodes}

H03J 3/20 ・of single resonant circuit by varying inductance only or capacitance only

H03J 3/22 ・of single resonant circuit by varying inductance and capacitance simultaneously

H03J 3/24 ・of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning

H03J 3/26 ・・the circuits being coupled so as to form a bandpass filter

H03J 3/28 ・of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range

H03J 3/30 ・・Arrangements for ensuring tracking with variable inductors

H03J 3/32 ・・Arrangements for ensuring tracking with variable capacitors

H03J 5/00 Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner (H03J 7/00, H03J 9/00 take precedence; for bandspreading H03J 3/10)

H03J 5/02 ・with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings

H03J 5/0209 ・・{Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of non preset values}

H03J 5/0218 ・・{Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values}

H03J 5/0227 ・・・{using a counter}

H03J 5/0236 ・・・{with possibility to skip over certain counter positions, i.e. channel skipping, or scanning the counter position with a variable frequency rate}

H03J 5/0245 ・・{Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form (microprocessor tuning H03J 1/0008)}

H03J 5/0254 ・・・{the digital values being transfered to a D/A converter}

H03J 5/0263 ・・・・{the digital values being held in an auxiliary non erasable memory}

H03J 5/0272 ・・・{the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer}

H03J 5/0281 ・・・・{the digital values being held in an auxiliary non erasable memory}

H03J 5/029 ・・・{with channel skipping capability}

H03J 5/04 ・・operated by hand

H03J 5/06 ・・・Settings determined by single indexing means with snap action

H03J 5/08 ・・・Settings determined by a number of separately-actuated positioning means

H03J 5/10 ・・・Settings determined by a number of positioning means mounted on a common support, e.g. turret tuner, which is adjustable to desired positions, a different positioning means being in operation in each position

H03J 5/12 ・・・Settings determined by a number of separately-actuated driving means which adjust the tuning element directly to desired settings

H03J 5/14 ・・operated by auxiliary power

H03J 5/143 ・・・{Settings determined by a number of positioning means mounted on a common support, e.g. turret tuner, which is adjustable to determined positions, a different positioning means being in operation in each position}

H03J 5/146 ・・・{Settings desired by a switch controlled together with the tuning member and which stops the control as soon as a desired position is reached}

H03J 5/16 ・・・Settings determined by a number of separate positioning means actuated by hand

H03J 5/18 ・・・Settings determined by a number of separate positioning means actuated by electromagnets

H03J 5/20 ・・・Settings determined by a number of positioning means actuated by a second means adjustable to different positions by the same or by a second auxiliary power

H03J 5/22 ・・・Settings determined by a number of separately actuated driving means which adjust the tuning element directly to desired settings

H03J 5/24 ・with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection, for television channel selection (switches in general H01H)

H03J 5/242 ・・{used exclusively for band selection}

H03J 5/244 ・・・{using electronic means}

H03J 5/246 ・・{using electronic means (H03J 5/244 takes precedence)}

H03J 5/248 ・・{using electromechanical means}

H03J 5/26 ・・operated by hand

H03J 5/28 ・・・Tuning circuits or elements supported on a revolving member with contacts arranged in a plane perpendicular to the axis

H03J 5/30 ・・・Tuning circuits or elements supported on a revolving member with contacts arranged in lines parallel to the axis

H03J 5/32 ・・・Stationary tuning circuits or elements selected by push-button

H03J 7/00 Automatic frequency control; Automatic scanning over a band of frequencies

H03J 7/02 ・Automatic frequency control (H03J 7/18 takes precedence; automatic tuning control for television receivers H04N 5/50)

H03J 7/023 ・・{Neutralization of the automatic frequency correction during a tuning change}

H03J 7/026 ・・{Means preventing a wrong working of the automatic frequency correction in case of fading or bad signal/noise ratio}

H03J 7/04 ・・where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant

H03J 7/042 ・・・{with reactance tube}

H03J 7/045 ・・・{Modification of automatic frequency control sensitivity or linearising automatic frequency control operation; Modification of the working range (H03J 7/10 takes precedence)}

H03J 7/047 ・・・{Automatic frequency control using an auxiliary signal, e.g. low frequency scanning of the locking range or superimposing a special signal on the input signal}

H03J 7/06 ・・・using counters or frequency dividers

H03J 7/065 ・・・・{the counter or frequency divider being used in a phase locked loop}

H03J 7/08 ・・・using varactors, i.e. voltage variable reactive diodes (H03J 7/06 takes precedence)

H03J 7/10 ・・・・Modification of automatic frequency control sensitivity or linearising automatic frequency control operation

H03J 7/12 ・・・・Combination of automatic frequency control voltage with stabilised varactor supply voltage

H03J 7/14 ・・・Controlling the magnetic state of inductor cores (H03J 7/06 takes precedence)

H03J 7/16 ・・where the frequency control is accomplished by mechanical means, e.g. by a motor

H03J 7/18 ・Automatic scanning over a band of frequencies

H03J 7/183 ・・{combined with selection between different stations transmitting the same programm, e.g. by analysis of the received signal strength}

H03J 7/186 ・・・{using two or more tuners}

H03J 7/20 ・・where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element {(H03J 7/183 takes precedence)}

H03J 7/22 ・・・in which an automatic frequency control circuit is brought into action after the scanning action has been stopped (H03J 7/24 takes precedence)

H03J 7/24 ・・・using varactors, i.e. voltage variable reactive diodes (H03J 7/28 takes precedence)

H03J 7/26 ・・・・in which an automatic frequency control circuit is brought into action after the scanning action has been stopped

H03J 7/28 ・・・using counters or frequency dividers

H03J 7/285 ・・・・{the counter or frequency divider being used in a phase locked loop}

H03J 7/30 ・・where the scanning is accomplished by mechanical means, e.g. by a motor

H03J 7/305 ・・・{in which an automatic frequency control circuit is brought in action after the scanning action has been stopped}

H03J 7/32 ・・with simultaneous display of received frequencies, e.g. panoramic receivers

H03J 9/00 Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification (mechanical remote-control arrangements H03J 1/00; {using a microprocessor H03J 1/0025; constructional details of remote control switching devices H01H 9/0235})

H03J 9/002 ・{comprising one or more tuning stages separated from the rest of a receiver}

H03J 9/005 ・{using non-electrical means without push-button control, e.g. pneumatic, hydraulic or sound wave transmission, Bowden cables}

H03J 9/007 ・{by voltages or currents with different frequencies or phases}

H03J 9/02 ・using radio transmission; using near-field transmission

H03J 9/04 ・using ultrasonic, sonic or infrasonic waves

H03J 9/06 ・using electromagnetic waves other than radio waves, e.g. light

H03J 2200/00 Indexing scheme relating to tuning resonant circuits and selecting resonant circuits

H03J 2200/01 ・Circuitry controlling the selecting or switching action

H03J 2200/02 ・Algorithm used as input for AFC action alignment receiver

H03J 2200/03 ・Alignment of a receiver during fabrication

H03J 2200/04 ・Alignment of a transmitter during fabrication

H03J 2200/05 ・Alignment of transmitter with a receiver, after fabrication

H03J 2200/06 ・Tuning of antenna

H03J 2200/07 ・Calibration of receivers, using quartz crystal oscillators as reference

H03J 2200/08 ・Calibration of receivers, in particular of a band pass filter

H03J 2200/09 ・Calibration of oscillator in receiver, using an external carrier frequency as reference

H03J 2200/10 ・Tuning of a resonator by means of digitally controlled capacitor bank

H03J 2200/11 ・Cellular receiver, e.g. GSM, combined with a GPS receiver

H03J 2200/12 ・Radio receiver combined with a GPS receiver

H03J 2200/13 ・Television receiver combined with a GPS receiver

H03J 2200/14 ・Tunable filter in receiver contributing to image rejection

H03J 2200/15 ・Tuning of resonator by means of digitally controlled inductor bank

H03J 2200/16 ・Interpolation of control values for varicaps

H03J 2200/17 ・Elimination of interference caused by harmonics of local oscillator

H03J 2200/18 ・Tuning of a master filter in order to tune its slave filter

H03J 2200/19 ・Resonator in MEMS technology

H03J 2200/20 ・Radio receiver with possibility to choose a station with a certain program style

H03J 2200/21 ・Television receiver with possibility to choose a station with a certain program style

H03J 2200/22 ・Remote control device controlling cursor and/or including a cursor detecting device

H03J 2200/23 ・Remote control device with display showing data to be transmitted to the controlled apparatus

H03J 2200/24 ・Remote control device with display showing program content

H03J 2200/25 ・Remote control device with display

H03J 2200/26 ・・Remote control device with touch screen display

H03J 2200/27 ・Adjusting the seek sensitivity of a scanning or sweeping receiver

H03J 2200/28 ・Automatic self-alignment of a receiver

H03J 2200/29 ・Self-calibration of a receiver

H03J 2200/30 ・Radio receiver with speech synthesis ability, used for conveying information that is shown on the display

H03J 2200/31 ・Several sweeping or scanning speeds

H03J 2200/32 ・Tuning of tracking filter

H03J 2200/33 ・Tuning of filter by controlling transconductance

H03J 2200/34 ・Tuning of oscillator by controlling transconductance

H03J 2200/35 ・Inductance tunable by switching in/out parts of the inductor

H03J 2200/36 ・Circuit arrangements for e.g. increasing the tuning range, linearizing the voltage-capacitance relationship, lowering noise, constant slope in different bands

H03J 2200/37 ・Control voltage applied to the anode of the varicap

H03J 2200/38 ・Control voltage applied to the cathode of the varicap

H03J 2200/39 ・Variable capacitors implemented using micro electro-mechanical systems [MEMS]

H03J 2200/40 ・Conversion to a zero or near-zero intermediate frequency