H03J 7 - Automatic frequency control; Automatic scanning over a band of frequencies

Patents for H03J 7 - Automatic frequency control; Automatic scanning over a band of frequencies (3,745)
01/1980
01/01/1980	CA1069230A Channel selecting apparatus
01/01/1980	CA1069181A Radio receiver with plural converters and frequency control
12/1979
12/18/1979	US4179662 Multiband scanning radio receiver using frequency synthesizer
12/18/1979	US4179661 Circuit for programming the search circuit of a radio receiver
11/1979
11/20/1979	US4175254 Selectively tunable heterodyne receiver
11/20/1979	CA1066781A1 Universal automotive electronic radio
11/15/1979	WO1979000937A1 Intermediate frequency sensing circuit
11/13/1979	US4174501 Command signal generator for an automatic channel selection device in a radio which is mobile relative to transmitter stations
10/1979
10/31/1979	EP0005128A2 Improvement in circuits for the automatic tuning of voltage controlled filters
10/30/1979	CA1065410A1 Fm discriminator
10/16/1979	CA1064580A1 Automatic fine tuning circuit
10/09/1979	CA1064130A1 Monitoring system for voltage tunable receivers and converters utilizing an analog function generator
10/09/1979	CA1064115A1 Crystalless scanning radio receiver
10/03/1979	EP0004301A1 Digital circuit for generating an arresting signal for the station scanner of a high-frequency receiver
10/02/1979	US4169993 Intercept receiver for double-side-band, noise-like signals
10/02/1979	CA1063679A1 Program apparatus for radio receiver using frequency synthesizer
10/02/1979	CA1063678A1 Tuning system for am/fm receivers
09/1979
09/04/1979	US4166927 Apparatus and method for frequency channel selection in a radiotelephone system
08/1979
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
08/14/1979	US4164711 Tuning system including a memory for storing tuning information with user controls arranged to facilitate its programming
08/14/1979	CA1060559A1 Monitoring system for voltage tunable receivers and converters utilizing voltage comparison techniques
08/09/1979	WO1979000544A1 Manually oerated tuning means
07/1979
07/31/1979	US4163259 Windowed tuning system with synchronous detector
07/31/1979	US4163203 Tuning apparatus for selecting preset broadcast frequencies
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	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
07/17/1979	US4161698 Tuning circuit for superheterodyne receiver
07/17/1979	CA1058779A1 Sequential channel tuning system with a memory
07/10/1979	US4160955 Compatible AM-FM frequency discriminator
06/1979
06/26/1979	US4159487 Low cost memory station
06/26/1979	CA1057433A1 Control device
06/26/1979	CA1057432A1 Channel selecting apparatus
06/19/1979	US4158816 Memory type tuning system with provisions for skipping nonpreferred tuning positions
06/12/1979	US4158211 Automatic frequency control apparatus for television receiver
06/12/1979	US4158175 Circuit for automatically switching operating modes of feedback-controlled systems
06/12/1979	CA1056466A1 Frequency synthesizer receiver having memory for storing frequency data
06/05/1979	US4157515 Band-pass filtering device with servo-controlled tuning
06/05/1979	US4157505 Plural band scanning radio with direct switch of RF amplifying transistors
05/1979
05/29/1979	US4156850 Display system for facilitating the setup of a tuning system
05/22/1979	US4156255 Television receiver with synchronous detection and automatic fine tuning
05/22/1979	US4156199 Apparatus for shifting a tuning window
05/22/1979	US4156197 High speed phase locked loop tuning system
05/22/1979	US4156196 Memory scanning radio receiver with separate channel data selection
05/15/1979	US4155050 Loop phase detector circuit
05/15/1979	US4155043 Channel selection apparatus including a scanning system
05/08/1979	US4153914 Network for applying a plurality of control voltages to a common control terminal
05/01/1979	US4152650 Continuously-synchronized tracking receiver for a priori defined swept carriers
04/1979
04/24/1979	US4151463 Phase locked loop indicator
04/10/1979	CA1052486A1 Search type tuning device
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
03/1979
03/27/1979	CA1051567A1 Tuning system for am/fm receivers
03/13/1979	US4144512 AFC voltage superimposing circuit for electronic tuner
03/13/1979	US4144499 Search circuit for a radio receiver
03/13/1979	US4144484 DC Voltage control device
03/06/1979	CA1050159A1 Wide band aft circuit for television receivers
02/1979
02/27/1979	US4142157 Tuning system equalized with the slope factor of the tuning curve
02/20/1979	CA1049165A1 Electronic automatic frequency tuning system
02/13/1979	CA1048639A1 On-off system for television receivers
01/1979
01/30/1979	CA1047660A1 Receiver with voltage tunable tuned circuits
01/16/1979	US4135164 Synchronous generating circuit devices with two phase-locked loops and feedback around both
01/16/1979	US4135158 Universal automotive electronic radio
12/1978
12/26/1978	CA1045259A1 All electronic digital tuner system with memory
12/19/1978	US4130804 Channel selecting apparatus with linearized tuning
12/19/1978	CA1044765A1 Broadcast receiver
12/12/1978	CA1044361A1 Non-proportionate afc system
12/05/1978	US4128849 Selectively coupled synthesizer for tuner of TV receiver
11/1978
11/28/1978	US4127822 Digitally controlled tuner with automatic fine tuning
11/28/1978	US4127821 Channel selecting apparatus with automatic rewriting of channel identifying codes in a memory
11/28/1978	US4127818 Method of and apparatus for tuning an aft-controlled electronic tuner to a desired frequency
11/28/1978	US4127226 Combined kerfing and joint nailing machine
11/14/1978	US4125863 AFC waveshaping circuit
11/07/1978	CA1042098A1 Automatic fine tuning defeat circuit
10/1978
10/31/1978	US4123724 Communication equipment
10/31/1978	US4123716 Automatic frequency control for digital tuning systems
10/31/1978	US4123715 Program apparatus for radio receiver using frequency synthesizer
10/31/1978	US4123713 Memory type tuning system with provisions to facilitate setup
10/24/1978	US4122493 Adaptive wideband AFC system
10/24/1978	US4122404 Combination phase detector voltage doubler and low-pass filter for use on a phase-lock loop
10/24/1978	US4122395 Radio control circuit with microprocessor
10/24/1978	CA1041238A1 Electronic automatic frequency tuning system
10/24/1978	CA1041237A1 Electronic system for automatically tuning to a selected television channel
10/17/1978	US4121254 Automatic fine tuning circuit
10/17/1978	US4121162 Digital phase locked loop tuning system
10/10/1978	US4119915 Electronic tuning system for radio receivers, with digital memorization of the signal frequency
10/10/1978	CA1040331A1 Channel selection system for tv receiver set
10/03/1978	CA1039871A1 Analog voltage generators for television tuners
10/03/1978	CA1039870A1 Tuner in which numerical channel command is converted to analog voltage
10/03/1978	CA1039869A1 Digital signal seeking tuning system
10/03/1978	CA1039868A1 Channel seeking tuning system
09/1978
09/12/1978	US4114103 Crystalless scanning radio receiver
09/12/1978	US4114100 Rapid tuning circuit for high frequency receivers
09/12/1978	CA1038487A1 Automatic frequency control device for television receiver

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