Patents
Patents for H03J 1 - Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (3,665)
04/1982
04/14/1982EP0049321A2 Automatic programme-search device for a PAL-SECAM television receiver
04/13/1982US4325103 Provisional fixing structure of electronic tuner
04/13/1982US4325064 Driving circuit for a fluorescent display apparatus having fewer leads
03/1982
03/30/1982US4322780 Illumination mechanism
03/24/1982EP0048200A1 Tuning-frequency search device for a frequency-modulation radio receiver
03/23/1982US4321587 Display unit with a removable indicator panel
03/16/1982US4320529 Frequency counting apparatus
03/16/1982US4320255 Radio with audio controls and associated displays
03/02/1982US4318095 Digital input apparatus
02/1982
02/23/1982US4317225 Channel identification apparatus useful in a sweep type tuning system
02/23/1982US4317050 User control arrangement for controlling a plurality of functions
02/02/1982US4314375 Television tuning system
02/02/1982CA1117673A1 Tuning apparatus
02/02/1982CA1117672A1 Remote control apparatus for presetting a tuning device to desired stations
01/1982
01/26/1982US4313212 Electrical circuit arrangements, for example for use with communications receivers
01/20/1982EP0044216A1 Magnetic reproducing apparatus capable of receiving radio broadcast programmes and a tuner unit insertable in magnetic reproducing apparatus
01/19/1982US4311056 Pre-setting fine tuning device for a turret type television tuner
12/1981
12/30/1981EP0042728A1 Tuning control apparatus of receiver having electronic tuner
12/15/1981US4306294 Combined electronic calculator and electronically tuning radio receiver
12/08/1981US4305156 Rotary switch type television tuner
12/08/1981US4305053 Indicator driving device for television receiver incorporating radio receiver
12/08/1981CA1114022A1 Radio receiver alignment indicator
11/1981
11/17/1981US4301378 Dual rate bi-directional switch
11/10/1981US4300238 Control assembly for electronic tuning receivers
11/03/1981US4298989 Tuning apparatus
10/1981
10/13/1981US4295224 Tuning indicator apparatus for a frequency synthesizer tuner
10/13/1981US4295165 Television signal discrimination system in a television receiver
09/1981
09/22/1981US4291413 Search type tuning system with direct address channel selection apparatus
09/22/1981US4291412 Portable radio frequency/channel display system
09/09/1981EP0035440A1 Sliding-contact type microwave tuning system
09/01/1981US4287600 Frequency synthesizer with ROM controlled divider and display
09/01/1981US4287498 Tuning arrangement for electrical components
08/1981
08/18/1981US4285066 Receiver having a search tuning circuit
08/04/1981US4282516 Keyboard encoding arrangement
07/1981
07/29/1981EP0032878A2 Radio receiver
07/28/1981US4281415 Digital tuner
07/28/1981US4281414 Receiving channel number indication system for television receiver
07/28/1981US4281314 Selection switching apparatus
07/07/1981US4277785 Radio control circuit with microprocessor
06/1981
06/30/1981US4275606 Pushbutton tuner
06/09/1981US4271714 Drive mechanism
06/03/1981EP0029635A1 Display unit with a removable indicator panel
06/02/1981US4271528 Variable pulse tuning system
05/1981
05/26/1981US4270218 Continuous tune all-channel selector
05/26/1981US4270217 Processor controlled, service selecting, AM/FM scanning radio receiver
05/26/1981US4270216 Tuning and volume indicator
05/26/1981US4270215 Channel indicator
05/19/1981US4268915 Universal automotive electronic radio with display for tuning or time information
05/12/1981US4267604 UHF electronic tuner
05/12/1981US4267601 Tuning control apparatus for a frequency synthesizer tuner
05/12/1981US4267597 Marine telephone radio
05/12/1981CA1101141A1 Planar printed circuit board arrangement useful in the uhf portion of a television tuner
05/06/1981EP0028100A1 Tuning control apparatus for a receiver
04/1981
04/22/1981EP0027365A1 Selective-call communications receiver
04/21/1981US4263674 Multi-band voltage variable capacitance tuner having automatic and manual tuning operations
04/21/1981US4263581 Manual tuning pulse generator
04/08/1981EP0026486A1 Microprocessor-controlled television apparatus
03/1981
03/31/1981US4259745 Tuning indicator circuit
03/17/1981CA1097831A1 Tuning apparatus for selecting preset broadcast frequencies
03/03/1981US4254506 Channel identification apparatus useful in a multiband sweep type tuning system
02/1981
02/24/1981US4253074 Push pre-setting fine tuning device for turret type television tuners
02/24/1981CA1096519A1 Phase locked loop tuning system with a preset channel memory
01/1981
01/27/1981US4247950 Display for frequency received by radio receiver
01/20/1981US4246611 Digital control system and a method of transmitting control data in such a system
12/1980
12/09/1980US4238724 Pulse controlled potentiometer
12/02/1980US4237373 Magnetic tape running state and tape run amount display device
11/1980
11/25/1980US4236153 Character display device
11/18/1980US4234961 Receiver comprising a tuning member and an automatic tuning correction suppression circuit
11/11/1980US4233505 Light receiving circuit having fast response time and a stable output waveform
11/04/1980US4232398 Radio receiver alignment indicator
11/04/1980US4232394 Station-signal frequency indication system for radio receiver
11/04/1980CA1089020A1 Digital electronic control and switching arrangement
10/1980
10/28/1980US4230064 Universal T.V. channel knob
10/14/1980US4228546 AM Radio receiver
10/14/1980US4228541 Device for the electro-optical display of the tuning of a television and/or sound radio receiver
10/14/1980US4228540 Radio receiver
10/07/1980US4227254 Quasi-analog channel indicator for radio receivers
10/07/1980US4227217 Multiplexing arrangement for a television signal processing system
10/07/1980US4226128 Friction device for use in car radios
09/1980
09/30/1980US4225972 System for indicating frequency of station signal received by superheterodyne radio receiver
09/30/1980US4225971 Tuning apparatus for providing tuning indication
09/30/1980US4225968 Electronic tuning type receiver having a band display and numerical frequency display
09/09/1980US4222120 Tuning position display system
09/09/1980US4221963 Light chopping disc for a pulse generator
09/03/1980EP0015161A1 Electronically tunable receiver
09/03/1980EP0015136A1 Multiplexing arrangement for a television signal processing system
09/03/1980EP0014724A1 Automatic tuning control circuit with a control loop for a high frequency superheterodyne receiver
08/1980
08/19/1980US4218775 Pushbutton radio tuner with illuminated pushbutton display
07/1980
07/22/1980US4214274 Frequency synthesizer tuning system with variable dwell signal seek
07/15/1980CA1081860A1 Wiper contact for turret-type varactor controller
07/08/1980US4211988 Search tuning system for television receiver
06/1980
06/24/1980US4209758 Method and apparatus for the automatic matching of a transmitter to an antenna
06/10/1980US4207522 Programmable frequency scanning radio system
05/1980
05/27/1980US4205270 Station selection indicating device
05/20/1980CA1078022A1 Fm receiver
05/13/1980US4203063 Movement detecting apparatus and method
05/06/1980US4201148 Pointer and scale indicating assembly
04/1980
04/16/1980EP0009618A1 Circuit and method for controlling a channel display in a superheterodyne receiver
04/16/1980EP0009617A1 Circuit for controlling a receiving frequency and a channel display in a superheterodyne receiver
04/08/1980US4197504 Common indicator unit for radio receiver and transceiver
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