Patents
Patents for H03J 5 - 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 (3,151)
11/1977
11/29/1977US4060768 Memory tuning system with dual speed programming
11/22/1977US4059791 Voltage supply circuit for voltage-dependent capacitor diode tuning
11/15/1977US4058772 Method of and apparatus for converting a plural-bit digital signal to a pulse width modulated signal
11/15/1977US4058756 Bidirectional channel skipping tuner drive system with single pole programming switch
11/08/1977US4057760 Frequency synthesized scanner having conductive programming elements for channel selection
11/01/1977US4056795 Wiper contact for turret-type varactor controller
11/01/1977US4056794 Channel selection mechanism for an electronic tuner
11/01/1977US4056787 Self-oscillating mixer circuit
10/1977
10/11/1977US4053838 Radio receiver
10/11/1977US4052956 Channel indicator
10/04/1977US4052674 Vhf tuner device
09/1977
09/20/1977US4049951 Data retention apparatus
09/13/1977US4048582 Phase locked loop synthesizer
09/13/1977US4048570 Multiple-band digital frequency synthesizer receiver
09/13/1977US4048562 Monitoring system for voltage tunable receivers and converters utilizing voltage comparison techniques
09/06/1977US4047112 Channel selector employing variable capacitance elements for tuning
08/1977
08/23/1977US4043207 Frequency selector comprising a freewheel coupling
08/23/1977US4043206 Channel selecting shaft mounting arrangement for UHF tuners
08/16/1977US4041784 Actuator for push button tuner
08/09/1977US4041535 Frequency synthesizer tuning system with signal seek control
08/09/1977US4041422 Fine tuning assembly for preset tuner
08/09/1977US4041402 Channel selection and indicating system
08/09/1977US4041401 Channel indicating apparatus
08/09/1977US4041400 Television remote control system
07/1977
07/26/1977US4038689 Frequency synthesizer tuning system with manual fine tuning control
07/12/1977US4035727 Multichannel radio transmitter with means to prevent abnormal wave radiation
06/1977
06/21/1977US4031549 Television tuning system with provisions for receiving RF carrier at nonstandard frequency
06/21/1977US4031491 Tuning apparatus using a voltage-dependent reactance element
06/21/1977US4031475 Electronic channel selecting apparatus
06/21/1977US4031474 Solid state television channel selection system
06/21/1977US4031470 Operation program-presetting system
06/21/1977US4031334 Apparatus for magnetic recording and/or reproducing of signals received by one or more signal receiving devices
06/14/1977US4030052 Flat tuner
05/1977
05/31/1977US4027242 Double superheterodyne multichannel receiver with a phase-locked loop frequency synthesizer
05/31/1977US4027230 Electronic multi-channel selection switch with common new-selection sensing device
05/24/1977US4025953 Frequency synthesizer tuning system for television receivers
05/24/1977US4025857 Television tuner circuit
05/17/1977US4024476 Programmable frequency divider for a television receiver frequency synthesizer
05/10/1977US4023108 Electronically controllable tuning device having a frequency synthesizer
05/10/1977US4023107 Sequential channel tuning system with a memory
05/10/1977US4023052 Touch control arrangement
05/03/1977US4020704 Pushbutton tuner
04/1977
04/26/1977US4020420 Electronic channel selector
04/26/1977US4020419 Electronic system for automatically tuning to a selected television channel
04/12/1977US4017800 Delinearization circuit
03/1977
03/29/1977US4015253 Rotary digital channel selection apparatus
03/29/1977US4015192 Voltage generating system
03/29/1977US4015096 Change-over switch mechanism for push-button tuner
03/22/1977US4013957 Channel-selecting apparatus for a multichannel transceiver
03/15/1977USRE29154 Transceiver channel selector
03/08/1977US4011515 Tunable scanning radio receiver
03/08/1977US4011514 Memory circuit for tuning of an electronically tuned receiver to a preselected station
03/08/1977US4010652 Actuator for pushbutton tuner
02/1977
02/22/1977US4009451 Frequency range selectable oscillator for multichannel communication system
02/22/1977US4009439 Programming unit for a television tuning phase locked loop
02/22/1977US4009438 Superheterodyne receiver with a digitally adjustable tuning arrangement
02/15/1977US4008436 Channel selecting apparatus
01/1977
01/25/1977US4005368 Memory tuning system with automatic two speed display
01/18/1977US4004233 Search type tuning device
01/18/1977US4004232 Radio receiver tuning control system
01/18/1977US4004085 Receiving program-presetting system for a television receiver
01/18/1977US4003266 Actuator for pushbutton tuner
01/11/1977US4002986 Television receiver with tuner capable of receiving air and CATV signals
01/11/1977US4002985 Channel selection indicator for memory tuning system
12/1976
12/21/1976US3999131 Channel-selecting apparatus for multichannel receivers
12/14/1976US3996805 Pushbutton assembly for a radio tuner
12/07/1976US3996522 Crystal controlled stepping radio receiver having novel oscillator circuit
12/07/1976US3996521 Signal-seeking radio receiver with band tuning and selecting means
11/1976
11/30/1976US3995242 Tuning device for switching a plurality of broadcast bands and for selecting any of them
11/30/1976US3994177 Television tuner
11/09/1976US3991382 Oscillation frequency control device for a local oscillator
11/09/1976US3990315 Detent UHF tuner with preset memory
11/02/1976US3990027 Channel selector for electronic tuner having channel voltages stored in memory
10/1976
10/26/1976US3988701 Oscillator frequency switching circuit for remote control transmitter
10/26/1976US3988681 Automatic tuning system
09/1976
09/28/1976US3983490 Signal overload protection circuit for varactor tuner
09/14/1976US3980959 Tuner bandswitching system for a television tuning system
09/14/1976US3980957 Circuit arrangement for tuning and range or band switching of an RF resonant circuit
09/14/1976US3980951 Electronic tuning control system for television
09/07/1976US3979744 Circuit arrangement for the digital control of operating functions via sensor electrodes, especially in radio and television receivers
09/07/1976US3979680 Channel selector
08/1976
08/31/1976US3978438 Tuning control apparatus
08/31/1976US3978411 Sweep output generator having a frequency modulated local oscillator for the station selector of a television receiver
08/17/1976US3974704 Tuner mechanism
08/03/1976US3973228 Electronic tuner control system
08/03/1976US3973207 Electronic channel selector including control means for selecting a channel and applying power to a load circuit
08/03/1976US3973206 Monitoring system for voltage tunable receivers and converters utilizing an analog function generator
08/03/1976US3973205 Television tuning system indicator
08/03/1976US3972240 Detent UHF tuner with preset memory
07/1976
07/27/1976US3971992 Apparatus for presetting receivers of the synthesizing type
07/27/1976US3971991 Television tuning system with varactor malfunction detection
07/20/1976US3970806 Multiple switch
07/13/1976US3969721 Light emitting diode indicator assembly for a multiple pushbutton array
07/06/1976US3968464 Multiple tuning system
07/06/1976US3968444 Skip band tuner
07/06/1976US3968443 Solid state television channel selection system
07/06/1976US3968442 Receiver tuning circuit
07/06/1976US3968440 Solid state television channel selection system
07/06/1976US3968439 Radio receiver having a preselection circuit tuned by a varactor with a variable limiter threshold circuit to attenuate large amplitude signals
06/1976
06/29/1976US3967057 Automatic tuning apparatus
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