Patents
Sitemap › H03 - Basic electronic circuitry › H03J - Tuning resonant circuits; Selecting resonant circuits › 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
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)
01/1979
01/30/1979US4137502 Radio-receiver or tuner provided with solid state memorizing means for a multiplicity of reception frequencies
01/30/1979CA1047661A1 Actuator for push button tuner
01/30/1979CA1047660A1 Receiver with voltage tunable tuned circuits
01/16/1979US4135158 Universal automotive electronic radio
01/16/1979US4135105 Locked frequency divider, multiplier and phase shifter
01/09/1979US4133214 Keyboard for presetting the tuning of a radio receiving apparatus
01/02/1979US4132952 Multi-band tuner with fixed broadband input filters
12/1978
12/26/1978US4131853 Electronic multiple channel tuner
12/26/1978CA1045259A1 All electronic digital tuner system with memory
12/19/1978US4130804 Channel selecting apparatus with linearized tuning
12/19/1978CA1044765A1 Broadcast receiver
12/12/1978CA1044387A1 Channel indicating apparatus
12/05/1978US4128849 Selectively coupled synthesizer for tuner of TV receiver
12/05/1978US4128821 Turret type television tuner
12/05/1978US4128820 Combination VHF and UHF tuner arrangement
11/1978
11/28/1978US4127822 Digitally controlled tuner with automatic fine tuning
11/28/1978US4127821 Channel selecting apparatus with automatic rewriting of channel identifying codes in a memory
11/28/1978US4127820 Electrical circuit for multiplexing and dividing different bands or frequencies
11/28/1978US4127818 Method of and apparatus for tuning an aft-controlled electronic tuner to a desired frequency
11/21/1978US4126051 Channel selector
11/21/1978CA1043022A1 Manual and automatic control for electronic equipment
10/1978
10/31/1978US4123724 Communication equipment
10/31/1978US4123717 Scanning receiver having priority channel indication in memory
10/31/1978US4123715 Program apparatus for radio receiver using frequency synthesizer
10/31/1978US4123713 Memory type tuning system with provisions to facilitate setup
10/24/1978US4122395 Radio control circuit with microprocessor
10/24/1978CA1041237A1 Electronic system for automatically tuning to a selected television channel
10/24/1978CA1040936A1 Detent mechanism for mechanical counter having partition member
10/17/1978US4121254 Automatic fine tuning circuit
10/17/1978US4121162 Digital phase locked loop tuning system
10/17/1978US4120207 Keyboard for the preselection of electromagnetic signals
10/17/1978CA1040766A1 Tuner with digitally coded indicia
10/10/1978US4119915 Electronic tuning system for radio receivers, with digital memorization of the signal frequency
10/10/1978US4118992 Clutch mechanism for push-button tuner
10/10/1978US4118991 Tuning display mechanism for multiband pushbutton tunable receiver
10/10/1978CA1040331A1 Channel selection system for tv receiver set
10/03/1978US4118679 VHF, UHF and superband tuner with automatic switching
10/03/1978CA1039871A1 Analog voltage generators for television tuners
10/03/1978CA1039870A1 Tuner in which numerical channel command is converted to analog voltage
10/03/1978CA1039869A1 Digital signal seeking tuning system
10/03/1978CA1039868A1 Channel seeking tuning system
09/1978
09/26/1978US4117407 Frequency synthesizer tuner
09/19/1978US4115744 Programable frequency acoustic wave discriminator
09/19/1978US4115737 Multi-band tuner
09/19/1978US4114459 Detent UHF tuner with memory type independent fine tuning
09/19/1978CA1038841A1 Light emitting diode indicator assembly for a multiple pushbutton array
09/12/1978US4114104 Channel skip memory system for radio receiver
09/12/1978US4114103 Crystalless scanning radio receiver
09/12/1978US4114102 Radio channel skip system
09/12/1978US4114100 Rapid tuning circuit for high frequency receivers
09/12/1978US4114098 Mechanical channel selector device
09/12/1978US4114045 Optical card reader for setting frequency division ratio of programmable counter for use in synthesizer tuners
09/05/1978US4112378 Television tuner circuit for selection of VHF and UHF/VHF converted television signals
09/05/1978CA1038093A1 Tuning apparatus using a voltage-dependent reactance element
08/1978
08/29/1978US4110694 Channel number interface
08/29/1978US4110693 Lockup inhibiting arrangement for a phase locked loop tuning system
08/22/1978US4109283 Frequency counter for a television tuning system
08/22/1978US4109207 Coding member for programming of a radio communication apparatus
08/15/1978US4107612 Phase locked loop exciter generator for high frequency transmitter
08/15/1978US4106351 Mechanical pushbutton devices suitable for recording positions of a mobile element in relation to a fixed support
08/08/1978US4106059 Phase locked loop television tuning system
08/01/1978US4104593 Receiver circuit including an hysteresis circuit for use with a remote controller
07/1978
07/11/1978US4099421 Pushbutton tuner
06/1978
06/27/1978US4097828 Tuning unit with bandswitch for high frequency receivers
06/27/1978US4097810 Phase locked loop tuning system with a preset channel memory
06/20/1978US4096475 Circuit for the conversion of a digital signal to an analog signal
06/06/1978US4093922 Microcomputer processing approach for a non-volatile TV station memory tuning system
06/06/1978US4093921 Microcomputer processing approach for a non-volatile TV station memory tuning system
05/1978
05/30/1978US4092594 Crystalless scanning radio receiver controlled by processing means
05/16/1978US4090143 Digital phase comparator with reset
05/16/1978US4090124 Circuit arrangement for switching a tuning voltage with low switch offset voltages and temperature compensation
05/09/1978US4088959 Multiple-band digital frequency synthesizer receiver
05/09/1978US4088958 Integrated circuit for a programmable television receiver
05/02/1978US4087813 Circuit for producing direct voltages from pulses
04/1978
04/18/1978US4085372 Channel selecting apparatus for a television receiver with an electronic tuner
04/18/1978US4085371 Automatically tuned memory television channel selecting apparatus
04/11/1978US4084127 Digital frequency deviation detector useful in a television tuning system
04/11/1978US4084111 Apparatus for the digital control of analog signal
04/04/1978US4083012 Automatic function setting and indication arrangement for a communications receiver
03/1978
03/28/1978US4081771 82 Detent manual varactor tuning system
03/28/1978US4081752 Digital frequency synthesizer receiver
03/21/1978US4079631 5-10 Pushbutton tuner
03/14/1978US4079420 Channel selecting apparatus
03/14/1978US4079320 Method of and apparatus for tuning an AFT-controlled channel selecting apparatus to a desired frequency
03/07/1978US4078213 Transmitter selection circuit for a radio or television receiver
03/07/1978US4078212 Dual mode frequency synthesizer for a television tuning apparatus
02/1978
02/28/1978US4077009 Tuning circuit for high frequency receivers
02/28/1978US4077008 Phase locked loop tuning system with station scanning provisions
02/21/1978US4075567 Broadcast receiver tuning circuit with station memory
02/14/1978US4074216 Receiver tuning circuit
01/1978
01/24/1978US4070629 High speed tuning system
01/24/1978US4070628 Radio receiver with selective plural band reception
01/24/1978US4070626 Radio telephone with channel switch
01/17/1978US4069455 Arrangement for maintaining reception of a radio receiver on the stronger of two signals
12/1977
12/27/1977US4065720 Electronic channel selector
12/13/1977US4063179 Channel selector for a scanning monitor receiver
12/13/1977US4063178 Memory tuning system with different speeds in program and operate modes
12/13/1977US4062243 Tuner pinion gear guide
12/06/1977US4061982 Channel selection apparatus provided with memory for digitalizing and storing channel selection voltage
12/06/1977US4061980 Radio receiver with plural converters and frequency control
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