Patents for H03J 7 - Automatic frequency control; Automatic scanning over a band of frequencies (3,745) |
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07/22/1992 | EP0495514A2 Auto-tuned apparatus for band-pass filter |
07/21/1992 | US5132799 Frequency synthesizer-type television signal receiving apparatus comprising AFT function and controlling method therefor |
07/14/1992 | US5130803 Satellite broadcasting tuner |
07/14/1992 | US5130670 Phase-locking circuit for swept synthesized source preferably having stability enhancement circuit |
07/08/1992 | EP0494058A1 A method for fine tuning the resonant frequency of a filter in a combiner |
07/08/1992 | EP0493763A1 Microprocessor controlled digital aft unit |
07/08/1992 | EP0493755A2 Digital method and apparatus for measuring the frequency of an IF signal |
07/01/1992 | WO1992012578A1 Frequency control system |
06/16/1992 | CA1303728C Television tuning system allowing rapid response to user initiated commands |
06/09/1992 | CA1303261C Tuning method |
05/20/1992 | EP0485453A1 Radio receiver frequency control system |
05/19/1992 | US5115515 Method and apparatus for radio communication with improved automatic frequency control |
05/12/1992 | US5113416 Digital radio frequency compensation |
04/29/1992 | EP0483090A1 Digital radio frequency compensation |
04/28/1992 | US5109531 Sideband receiver with pilot lock |
04/21/1992 | US5107522 Automatic frequency control circuit |
04/21/1992 | US5107335 Automatic frequency control method and receiving apparatus using thereof |
04/21/1992 | CA1299255C Frequency synthesizer having digital phase detector with optimal steering and level-type lock indication |
04/21/1992 | CA1299250C Frequency difference detector (fdd) and a carrier modulated receiver including such a fdd |
04/15/1992 | EP0479895A1 Low voltage afc switch |
04/08/1992 | EP0479613A2 An automatic broadcast wave tuning device for RDS receiver |
04/08/1992 | CN1060188A Previous channel feature in television receiver having multiple rf inputs |
04/08/1992 | CN1060187A Linkable scan lists for television receiver |
04/01/1992 | EP0477756A2 Linkable scan lists for a television receiver |
04/01/1992 | EP0477753A2 A previous channel feature in a television receiver having multiple RF inputs |
03/31/1992 | US5101509 Rf filter alignment using digital processor clock |
03/25/1992 | EP0476826A2 A method of selecting receiving frequency for RDS receiver |
03/25/1992 | CN1016034B Frequency control apparatus and method for digital radio receiver |
03/18/1992 | EP0475705A2 RF filter alignment using digital processor clock |
03/15/1992 | CA2048100A1 Rf filter alignment using digital processor clock |
03/11/1992 | CN1015854B Automatic intermediate frequency tangent lock control circuit |
03/11/1992 | CN1015851B Adaptive scanning method |
03/04/1992 | EP0473373A2 Calibration system for direct conversion receiver |
03/03/1992 | CA1296776C Automatic if tangent lock control circuit |
02/11/1992 | US5087977 Channel selecting apparatus automatically detecting different modes of television signals |
02/05/1992 | EP0469341A2 Broadcast receiver with a radio data signal decoder |
02/05/1992 | EP0469301A2 Signal-strength-peak detecting circuit for automatic tuning circuit |
02/05/1992 | EP0469001A1 Paging receiver with continuously tunable antenna and rf amplifier |
01/31/1992 | WO1992002991A1 Dual mode automatic frequency control |
01/15/1992 | EP0466080A1 Remote control device for transmitter-receiver sets, in particular for the reconfiguration of base stations of a cellular telephone network |
01/14/1992 | US5081590 Computer aided technique for post production tuning of microwave modules |
01/11/1992 | CA2046480A1 Transceiver group remote control device, particularly for the base station configuration in a cellular radiotelephone network |
01/08/1992 | EP0464853A2 Radio receiving system |
01/08/1992 | CN1057746A Method for alignment of analog circuit sections within integrated circuit |
01/07/1992 | CA2046378A1 Radio receiving system |
12/31/1991 | US5077834 Paging receiver with continuously tunable antenna and RF amplifier |
12/31/1991 | US5077827 Warning receiver readiness monitoring circuit |
12/27/1991 | EP0462718A2 Broadcast receiver system |
12/26/1991 | WO1991020140A1 Quadrature amplitude modulation synchronization method |
12/20/1991 | CA2043046A1 Broadcast receiver capable of automatic station identification and format-scanning based on an internal database updatable via data reception over the airwaves |
12/17/1991 | US5073975 Stop on station circuit including center channel detector |
12/17/1991 | US5073973 Method and circuitry for automatic control of the frequency for a radio telephone |
12/10/1991 | US5072298 Auto-tuning circuit for an active filter used in video signal processing |
11/13/1991 | EP0455821A1 Receiver |
11/13/1991 | CN1056200A Sync validity detection utilizing microcomputer |
11/12/1991 | US5065244 Automatic fine tuning circuit |
11/06/1991 | EP0455145A2 Sync validity detection utilizing a microcomputer |
11/06/1991 | EP0455046A2 High speed automatic frequency tuning method |
10/30/1991 | EP0454266A2 Receiver comprising a circuit for estimating frequency offset |
10/17/1991 | DE4039117A1 Automatic station selection process for RDS preselect receiver - using stored list of alternative network frequencies to initiate follow-up tuning sequence if required |
10/16/1991 | EP0452212A1 Method for tuning at least one frequency variable filter of a filter arrangement to a new selected frequency and system for the elaboration of this method |
10/09/1991 | EP0450268A2 A radio station presetting method for radio receivers |
10/02/1991 | EP0448729A1 Tune detecting circuit |
10/02/1991 | DE4009729A1 Converter for digital radio receiver system - uses phase locked loop controlled by DC voltage to provide reference mixer signal |
09/25/1991 | EP0447411A1 A method and a device pertaining to an electro-mechanically controlled resonance module. |
09/25/1991 | CN1054866A Stability detection method and apparatus for tuning system |
09/24/1991 | US5052049 Paging receiver with continuously tunable antenna |
09/24/1991 | US5051829 Method for automatically controlling optimal tuning point for receiving teletext |
09/11/1991 | EP0445885A1 Receiver with means for acquisition and comparison of identification data of two transmission channels |
09/10/1991 | US5048119 Broadcast receiver for radio or television signals with storage and interchange of preset stations |
09/03/1991 | US5046140 Automatic optical frequency acquisition and tracking apparatus for optical coherent communication system |
08/21/1991 | EP0441851A1 Satellite radio receiver |
08/14/1991 | EP0441593A2 Automatic frequency control circuit |
08/08/1991 | DE4003417A1 Verfahren zum abgleich analoger schaltungsteile innerhalb einer integrierten schaltung Method of adjustment-analog circuit components within an integrated circuit |
08/06/1991 | WO1991011857A1 Device for equalizing analog circuit parts in an integrated circuit |
07/31/1991 | EP0439326A2 Digitally frequency-locking a radio transceiver to the received signal |
07/31/1991 | EP0438694A1 Method and device for the storage of programmes in a television receiver |
07/25/1991 | DE4001832A1 Channel search in digital radio transmission - uses transmitting radio station, and examining allocated radio channels for signal-free state |
07/24/1991 | EP0437731A1 TV receiver apparatus with a transmitter scanning device and a memory for storing individual items of TV transmitter information |
07/23/1991 | US5034819 Channel selecting apparatus and method used in a television receiving apparatus and capable of memorizing channel data |
07/11/1991 | DE4040814A1 Channel scanning equipment for programming VTR - scans channels for TV synchronisation signals comparing programming data with video-text data |
07/03/1991 | EP0434941A1 Circuit arrangement for applying an AFC signal |
07/02/1991 | US5029237 Radio receiver frequency control system |
06/26/1991 | EP0433596A2 Method and apparatus for suppressing undesired automatic transmitter change-over |
06/19/1991 | EP0432736A1 Programme storage method in television receivers |
06/13/1991 | WO1991008618A1 Receiver |
06/12/1991 | EP0431694A1 FM receiver for radio data signals |
06/12/1991 | EP0221189B1 Electronically tunable fm receiver |
06/12/1991 | CN1052231A Circuit arrangement for introducing afc signals |
06/11/1991 | US5023941 Switching-over, automatic matching filter for radio transmitter and/or receiver |
05/28/1991 | US5020142 Automatic scanning tuner |
05/28/1991 | US5019792 Signal tracking electronically tunable filter |
05/23/1991 | DE4033538A1 TV signal data abstracting device - uses data from teletext to control TV receiver and video recorder |
05/22/1991 | EP0428173A2 Radio frequency signal amplifying circuit in radio receiver |
05/22/1991 | EP0428170A2 Radio receiver comprising automatic gain controlling function |
05/08/1991 | EP0426175A2 Am radio receiver |
05/07/1991 | US5014352 Frequency difference detector (FDD) and a carrier modulated receiver including such a FDD |
05/07/1991 | US5014350 Apparatus for and method of improving the AFC of a television broadcast satellite receiver |
05/07/1991 | US5014348 Self-programming scanning radio receiver |
05/02/1991 | WO1991006150A1 Tune detecting circuit |