| Patents for H03J 7 - Automatic frequency control; Automatic scanning over a band of frequencies (3,745) |
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| 01/04/1994 | US5276706 System and method for minimizing frequency offsets between digital communication stations |
| 01/04/1994 | US5276409 Autotuning combiner stabilized against frequency drift |
| 12/29/1993 | EP0576084A1 FM-receiver with dynamic intermediate frequency (IF) filter tuning |
| 12/29/1993 | EP0576082A1 FM receiver including a phase quadrature IF filter |
| 12/16/1993 | DE4318867A1 Audio equipment incorporating RDS receiver - includes muting circuit for suppression of noise emission during intervals of reception interference of mobile antenna |
| 12/08/1993 | EP0341238B1 Automatic antenna tuning system for portable communication devices |
| 12/07/1993 | US5268712 Apparatus and method for search tuning of satellite television sound carriers |
| 11/18/1993 | EP0569392A1 Method and circuit for automatic, high-precision frequency fine-tuning. |
| 10/27/1993 | EP0566640A1 Tuning means for resonance module. |
| 10/13/1993 | EP0565325A1 AFC circuit and IC of the same |
| 10/07/1993 | DE4210961A1 Integrated circuit with phase comparison section - has second section generating frequency search stop according to IF count principle |
| 10/06/1993 | EP0564353A1 Car receiver for assisting the navigation of an automotive vehicle |
| 10/06/1993 | EP0564075A1 Continuous phase FSK modulated optical transmission system with local osciallator control |
| 10/05/1993 | CA2003688C Digital automatic frequency control of pure sine waves |
| 10/02/1993 | CA2092940A1 Navigation aid receiver for an automobile vehicle |
| 09/28/1993 | US5249303 Continuous reception by a mobile receiver unit of program channels transmitted by a series of transmitters |
| 09/14/1993 | US5245437 Method for selecting channels in a video system using a national television system committee (NTSC) system |
| 09/08/1993 | EP0558903A1 Car radio with an RDS decoder |
| 09/07/1993 | CA1322024C Afc apparatus |
| 08/24/1993 | US5239702 Tuning detector |
| 08/24/1993 | US5239701 Radio receiver with improved channel selection and reception |
| 08/10/1993 | US5235294 Auto-tuned apparatus for band-pass filter |
| 08/03/1993 | US5233633 Automatic frequency control by an adaptive filter |
| 08/03/1993 | US5233425 Adaptive AFT system with variable step resolution |
| 08/03/1993 | US5233351 Local oscillator arrangement for a monopulse receiver in a semiactive missile guidance system |
| 07/28/1993 | EP0552442A2 Radio data system receiver |
| 07/20/1993 | CA2011264C Phase-locked loop bandwidth switching demodulator for suppressed carrier signals |
| 07/14/1993 | EP0551106A2 Frequency sweep control apparatus |
| 07/10/1993 | WO1993014587A1 Quadrature amplitude modulation synchronization method |
| 06/30/1993 | EP0549030A1 Arrangement for reproducing an electric signal from a track on a magnetic record carrier |
| 06/30/1993 | CN1073809A Antenna controlling apparatus and method thereof |
| 06/24/1993 | DE4142301A1 Miniature UHF radio receiver with automatic transmitter search - has two operating controls providing automatic search mode in higher frequency direction and resetting to UHF range |
| 06/22/1993 | US5222254 Receiver including means for acquisition and comparison of identification data of two transmission channels |
| 06/22/1993 | US5222079 Adaptive information signal receiver |
| 06/15/1993 | US5220682 Automatic broadcast wave tuning device for rds receiver |
| 06/09/1993 | EP0545342A1 Superheterodyne receiver |
| 06/09/1993 | EP0545245A2 Digital oscillator |
| 05/26/1993 | EP0543790A1 Stabilized telephony combiner |
| 05/25/1993 | US5214795 Low voltage automatic frequency control switch for a radio receiver |
| 05/25/1993 | CA1318419E Digital frequency lock tuning system |
| 05/20/1993 | CA2076895A1 Stabilized telephony combiner |
| 05/19/1993 | DE4238426A1 Radio tuner for satellite broadcast reception - has channel selection circuit which operates on output from clock-driven counter of pulses from phase-locked loop frequency divider |
| 05/18/1993 | US5212818 Radio station presetting method for radio receivers |
| 05/18/1993 | US5212554 Digital method and apparatus for evaluating a frequency parameter of an if signal |
| 05/12/1993 | EP0540908A1 Method and apparatus for automatic tuning calibration of electronically tuned filters |
| 04/29/1993 | DE4236087A1 Tunable antenna system with controllable reactive circuit element - has level detector circuit producing signal which contains component at second harmonic frequency of dither signal |
| 04/21/1993 | EP0302100B1 Improved phase lock loop |
| 04/20/1993 | US5204984 Down converter for satellite communication system |
| 04/13/1993 | US5203032 Station selecting apparatus |
| 04/13/1993 | US5203031 Am radio receiver with improved tracking |
| 04/13/1993 | CA1316221C Self-programming scanning radio receiver |
| 03/30/1993 | US5199109 Multi channel scanning receiver with improved signal strength detecting circuitry |
| 02/17/1993 | EP0527481A1 Frequency converter circuit |
| 02/04/1993 | DE4125592A1 Tuning HF source esp. microwave of electron spin resonance spectrometer - sweeping frequency through defined region and setting absorption point in centre of region |
| 01/26/1993 | US5182646 Linkable scan lists for a television receiver |
| 01/26/1993 | CA1313255C Tuner for receiving television signals in two different systems |
| 01/13/1993 | EP0522998A2 Method for estimating the frequency offset in a quadrature receiver |
| 01/12/1993 | US5179726 Automatic tuning method and apparatus of double conversion tuner |
| 01/07/1993 | EP0521403A1 Radio receiver capable of suppressing a frequency drift in an intermediate frequency |
| 12/29/1992 | WO1993000747A1 Automatic frequency control by an adaptive filter |
| 12/23/1992 | EP0519489A1 Automatic frequency control circuit |
| 12/16/1992 | EP0518086A2 Radio receiver |
| 12/08/1992 | US5170497 Tuning method and apparatus |
| 12/08/1992 | US5170492 Digitally frequency-locking a radio transceiver to the received signal |
| 12/02/1992 | EP0469001A4 Paging receiver with continuously tunable antenna and rf amplifier |
| 11/11/1992 | EP0512133A1 Method for automatic sweep tuning of audio carriers for satellite television |
| 11/10/1992 | US5163164 Microprocessor controlled digital aft unit |
| 11/10/1992 | US5163159 Dual mode automatic frequency control |
| 11/03/1992 | US5161253 Preset scanning method for radio receivers |
| 11/03/1992 | US5161023 Previous channel feature in a television receiver having multiple rf inputs |
| 10/28/1992 | EP0510914A2 RDS receiver |
| 10/28/1992 | EP0510848A2 Continuous reception of program channels by a mobile receiver unit |
| 10/24/1992 | CA2065659A1 Continuous reception of program channels by a mobile receiver unit |
| 10/20/1992 | US5157492 Sync validity detecting utilizing a microcomputer |
| 10/14/1992 | EP0508369A1 Method for selecting a broadcasting station in a RDS-receiver |
| 10/13/1992 | US5155466 Automatic frequency control system |
| 10/07/1992 | EP0507401A2 Frequency tracking arrangement, corresponding method of frequency tracking and a radio receiver embodying such an arrangement |
| 10/07/1992 | EP0507096A2 A RDS receiver |
| 09/30/1992 | EP0485453A4 Radio receiver frequency control system |
| 09/29/1992 | US5152011 Broadcast receiver capable of automatic station identification and format-scanning based on an internal database updatable via data reception over the airwaves |
| 09/29/1992 | US5151703 Method and apparatus for improved automatic fequency control |
| 09/29/1992 | CA1308188C Automatic frequency control |
| 09/17/1992 | WO1992016049A1 Process for tuning a radio receiver by utilizing rds data |
| 09/09/1992 | EP0502500A1 Method for tuning of a radio receiver, using RDS-data |
| 09/08/1992 | CA1307325C Adaptive scanning method |
| 09/02/1992 | EP0501536A2 Method and circuit for automatic fine frequency tuning with high precision |
| 09/02/1992 | EP0501366A1 Frequency translating arrangement with automatic frequency control |
| 08/26/1992 | EP0500373A2 Time division duplex transmitter-receiver |
| 08/26/1992 | EP0500025A2 Automatic frequency control method and device for use in receiver |
| 08/19/1992 | CN1063786A Method and circuit automatic, high precision frequency fine tuning |
| 08/18/1992 | US5140701 Carrier signal detection circuit featuring a wide range of signal/noise performance |
| 08/12/1992 | EP0498233A2 RDS broadcast receiver |
| 08/06/1992 | WO1992013389A1 Method and circuit for automatic, high-precision frequency fine-tuning |
| 08/05/1992 | EP0497116A2 RDS broadcast receiver |
| 08/05/1992 | EP0497115A2 RDS broadcast receiver |
| 08/04/1992 | US5136719 Automatic antenna tubing method and apparatus |
| 07/29/1992 | CN1063193A Microprocessor controlled digital aft unit |
| 07/29/1992 | CN1063192A Digital method and apparatus for measuring frequency of if signal |
| 07/28/1992 | US5134415 Switchable local oscillator for shared mixer radiometers |
| 07/23/1992 | WO1992012577A1 Tuning means for resonance module |