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