| 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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| 01/15/1980 | US4183250 Low profile pushbutton tuner |
| 01/08/1980 | US4182994 Phase locked loop tuning system including stabilized time interval control circuit |
| 01/08/1980 | US4182991 Channel selecting apparatus for use with plural tuning devices |
| 01/08/1980 | CA1069629A1 Multi-band tuner with fixed broadband input filters |
| 01/01/1980 | US4181891 Channel change indication circuit |
| 01/01/1980 | US4181890 Apparatus for receiving signals in plural frequency bands |
| 01/01/1980 | CA1069230A Channel selecting apparatus |
| 01/01/1980 | CA1069181A Radio receiver with plural converters and frequency control |
| 12/25/1979 | CA1068834A Channel selecting apparatus for a television receiver with an electronic tuner |
| 12/18/1979 | US4179662 Multiband scanning radio receiver using frequency synthesizer |
| 12/11/1979 | US4178547 Remote microphone with approved channel selector |
| 12/11/1979 | CA1067760A1 Television channel indicator |
| 12/04/1979 | US4177429 Switching arrangement for combination VHF-UHF tuners |
| 11/20/1979 | US4175259 Construction of preset plate for VHF tuner |
| 11/20/1979 | CA1066781A1 Universal automotive electronic radio |
| 11/06/1979 | US4173737 Limited position, non-volatile memory tuning system |
| 10/30/1979 | US4172997 Digital tuner for a communication receiver, typically an AM receiver |
| 10/30/1979 | US4172390 Lever for memory fine tuning arrangements for turret type television tuner |
| 10/16/1979 | CA1064580A1 Automatic fine tuning circuit |
| 10/09/1979 | US4170760 Radio receiver with frequency selection and muting |
| 10/09/1979 | CA1064130A1 Monitoring system for voltage tunable receivers and converters utilizing an analog function generator |
| 10/02/1979 | CA1063679A1 Program apparatus for radio receiver using frequency synthesizer |
| 09/25/1979 | CA1063179A1 Radio receiver having a preselection circuit tuned by a varactor |
| 09/11/1979 | US4167704 Channel selecting apparatus |
| 09/11/1979 | US4167703 Tuning apparatus with band-selection means |
| 09/11/1979 | US4167702 Tuning apparatus |
| 09/11/1979 | CA1062384A1 Voltage supply circuit for voltage-dependent capacitor diode tuning |
| 08/28/1979 | CA1061487A1 Electronic channel selector with voltage memory circuit |
| 08/28/1979 | CA1061486A1 Channel selection indicator for memory tuning system |
| 08/28/1979 | CA1061485A1 Channel selection apparatus provided with memory digitalizing and storing channel selection voltage |
| 08/23/1979 | WO1979000570A1 Electronically tuned radio receiver |
| 08/23/1979 | WO1979000564A1 Delay circuit |
| 08/21/1979 | US4165507 Non-linear digital to analog conversion by intermediate conversion to time interval |
| 08/21/1979 | US4165499 Channel-selecting, presettable, rotary type tuning device |
| 08/21/1979 | US4165489 Channel change indication circuit with delayed memory activation |
| 08/21/1979 | CA1061024A1 Channel indicating system |
| 08/14/1979 | US4164711 Tuning system including a memory for storing tuning information with user controls arranged to facilitate its programming |
| 08/14/1979 | US4164710 Very high frequency tuner for eliminating image interference and stray capacitance effects |
| 08/14/1979 | CA1060559A1 Monitoring system for voltage tunable receivers and converters utilizing voltage comparison techniques |
| 08/09/1979 | WO1979000544A1 Manually oerated tuning means |
| 07/31/1979 | CA1059666A1 Automatic tuning system with means to correct channel information in memory |
| 07/31/1979 | CA1059665A1 Receiver including a tuning circuit having a transmitter search device |
| 07/24/1979 | US4162513 Television system scheduler |
| 07/24/1979 | US4162452 Channel selection for a television receiver having low-gain high frequency RF-IF section |
| 07/24/1979 | US4162451 MESFET-device surface-wave-device channel selector |
| 07/24/1979 | US4162450 Programmable divider |
| 07/17/1979 | US4161708 Electronic tuning system with digital band selection |
| 07/17/1979 | US4161707 Pushbutton tuner having linkage operated tuning slider |
| 07/17/1979 | US4161699 Second derivative memory-saving all channel digital tuning system |
| 07/17/1979 | US4161698 Tuning circuit for superheterodyne receiver |
| 07/17/1979 | CA1058780A1 Memory tuning system with automatic two speed display |
| 07/17/1979 | CA1058779A1 Sequential channel tuning system with a memory |
| 07/03/1979 | US4160213 Mixer injection voltage compensation circuit |
| 06/26/1979 | CA1057434A1 Fine tuning assembly for preset tuner |
| 06/26/1979 | CA1057433A1 Control device |
| 06/26/1979 | CA1057432A1 Channel selecting apparatus |
| 06/19/1979 | US4158826 Operator controllable detent mechanism for television tuners |
| 06/19/1979 | US4158816 Memory type tuning system with provisions for skipping nonpreferred tuning positions |
| 06/19/1979 | US4158815 System for reducing the number of binary signals representing channel numbers |
| 06/12/1979 | CA1056466A1 Frequency synthesizer receiver having memory for storing frequency data |
| 06/05/1979 | US4157505 Plural band scanning radio with direct switch of RF amplifying transistors |
| 05/29/1979 | US4156850 Display system for facilitating the setup of a tuning system |
| 05/22/1979 | US4156198 Keyboard channel selection for television receivers |
| 05/22/1979 | US4156197 High speed phase locked loop tuning system |
| 05/22/1979 | US4156196 Memory scanning radio receiver with separate channel data selection |
| 05/22/1979 | US4156193 Crystalless scanning radio receiver and transmitter |
| 05/22/1979 | CA1055158A1 Magnetic recording apparatus |
| 05/15/1979 | US4155060 Rotary preset tuner |
| 05/15/1979 | CA1054736A1 Signal overload protection circuit for varactor tuner |
| 05/08/1979 | US4153887 Electrically tunable bandpass filter |
| 05/08/1979 | CA1054270A1 Abrupt junction varactor diode television tuner |
| 05/01/1979 | US4152682 Fine tuning mechanism in a tuner |
| 05/01/1979 | US4152669 Phase locked loop with means for preventing locking at undesired frequencies |
| 05/01/1979 | US4152654 Memory-saving all channel digital tuning system |
| 05/01/1979 | CA1053813A1 Detent uhf tuner with preset memory |
| 04/24/1979 | US4151559 Electronic television tuner interface circuit |
| 04/24/1979 | CA1053368A1 Operation program-presetting system |
| 04/17/1979 | US4150347 Dual band pushbutton electronic tuning system |
| 04/17/1979 | CA1052920A1 Voltage generating system |
| 04/10/1979 | CA1052486A1 Search type tuning device |
| 04/05/1979 | WO1979000169A1 Television system scheduler |
| 04/03/1979 | US4147993 Electrical signal generators |
| 04/03/1979 | US4147987 Superheterodyne receiver of scanning type |
| 04/03/1979 | CA1052023A1 Automatic tuning system with uniform tuning rate across band |
| 03/13/1979 | US4144511 Push-button mechanisms and equipment including them |
| 03/13/1979 | US4144499 Search circuit for a radio receiver |
| 03/13/1979 | US4144498 Television tuning method and apparatus for tuning employing slope factor derivation |
| 03/13/1979 | US4143555 Dual band pushbutton tuner |
| 03/06/1979 | CA1050181A1 Frequency selector comprising a freewheel coupling |
| 02/27/1979 | US4142158 Frequency selection receiver with variable time constant control loop |
| 02/27/1979 | US4142157 Tuning system equalized with the slope factor of the tuning curve |
| 02/27/1979 | US4141254 Pushbutton reselection tuner with pivoting lever |
| 02/27/1979 | CA1049651A1 Receiving program-presetting system for a television receiver |
| 02/20/1979 | CA1049166A1 Detent uhf tuner with preset memory |
| 02/20/1979 | CA1049105A1 Electronic switch |
| 02/13/1979 | US4139840 Ladderless D/A converter |
| 02/13/1979 | CA1048639A1 On-off system for television receivers |
| 02/06/1979 | US4138654 Digitally tuned circuit including switching of bank capacitors between plural tuned circuits |
| 02/06/1979 | US4138647 Memory type tuning system for storing information for a limited number of preferred tuning positions |
| 02/06/1979 | CA1048179A1 Adaptable tuner assembly |