Patents
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)
04/1997
04/30/1997DE19539939A1 Code transmitter e.g. for motor vehicle theft prevention system
04/30/1997CN1148755A Circuit for synchronous transmitter local oscillator frequency in digital microwave system applied in same wave channel
04/23/1997EP0769872A2 Circuit with a high frequency receiver stage and a transmission stage
04/23/1997EP0769850A1 High frequency tuner
04/10/1997DE19640867A1 Multiplex radio receiver for Radio Data System
04/09/1997CN1147186A Two band 25 channel cordless telephone system
04/08/1997US5619283 Double tuned RF circuit with balanced secondary
04/02/1997EP0766391A1 Radio receiver
03/1997
03/27/1997DE19639238A1 Eingangsabstimmkreis für Fernsehgerät Eingangsabstimmkreis for TV
03/27/1997DE19639237A1 Double television tuner device
03/27/1997DE19635891A1 Receiver with signal generating oscillator at frequency corresponding to oscillation control signal
03/19/1997CN1145554A Superheterodyne receiving circuit and superheterodyne receiver
03/18/1997US5613197 Multi-channel transponder with channel amplification at a common lower frequency
03/13/1997DE19533008A1 Receiver especially for radio data system
03/12/1997EP0761038A1 Variable-frequency oscillator circuit
03/05/1997EP0487548B1 Synthesized selective call receiver having variable characteristics
02/1997
02/19/1997CN1143431A Tuning system with DC-DC converter
02/19/1997CN1143285A Station selecting and processing device for mobile FM receivor
02/18/1997US5604927 Receiver having an adjustable bandwidth filter
02/11/1997US5603097 Digital radio system capable of high-speed frequency changing at low power consumption
02/05/1997CN1142158A Method for storage of tuning data of digital channel, and circuit, TV receiver, videorecorder thereof
02/05/1997CN1142140A Storage for selecting channel by frequency synthesizer, and system using same
01/1997
01/22/1997EP0755120A1 Phase-locked loop circuit
01/22/1997CN1140934A Apparatus and method of setting variable dividing radio and apparatus using the same
01/21/1997CA2048758C Linkable scan lists for a television receiver
01/21/1997CA2048753C Previous channel feature in a television receiver having multiple rf inputs
01/14/1997US5594510 Method for tuning the channel of broadcasting waves and identifying channel plan by applying memorized frequency data
12/1996
12/27/1996EP0750421A1 Method for the storage of digital tuning data, circuit, television receiver and magnetic video recorder for implementing the same
12/18/1996EP0749055A2 Heterodyne receiver with synchronous demodulation for time signal reception
12/10/1996US5584062 Method and apparatus for compensating phase locked receivers
12/10/1996US5584061 Receiver with automatic tuning function
12/04/1996EP0745284A1 Adaptive system for self-tuning and selecting a carrier frequency in a radio frequency communication system
11/1996
11/13/1996CN1135696A Tuning circuit for receiver, especially for television receiver
11/06/1996CN1135137A Circuit device including RF converter, Tuner and IF amplifier
10/1996
10/30/1996EP0740415A1 Switching circuit for a satellite broadcasting converter
10/30/1996EP0739535A1 Tuning system with dc-dc converter
10/08/1996US5564099 Radio signal reception with a PLL frequency controlled for an IF signal depending on coexistence of a spurious signal with the radio signal
10/03/1996WO1996015652A3 Tuning system with dc-dc converter
09/1996
09/24/1996US5559475 Frequency synthesizer for synthesizing signals of a variety of frequencies by cross modulation
09/12/1996DE2858826C2 Receiver tuner permitting channel searching
09/11/1996EP0731572A2 Radio station tuning system
09/11/1996CN1130823A Satellite receiving tuner with band broadness changeable demodulation circuit
08/1996
08/20/1996US5548839 Wide band radio-frequency converter having multiple use of intermediate frequency translators
08/20/1996US5548821 Adaptive system for self-tuning and selecting a carrier frequency in a radio frequency communication system
08/14/1996EP0726648A1 Tuning circuit for a receiver apparatus particularly a television receiver
08/14/1996EP0479932B1 Frequency synthesizer with an interface controller and buffer memory
08/07/1996EP0725489A1 Broadcasting station data detecting apparatus for a mobile body and broadcast receiving apparatus for mobile bodies
08/01/1996WO1996023354A1 Wide frequency spectrum television tuner with single local oscillator
07/1996
07/30/1996US5541469 Resonator utilizing width expansion mode
07/11/1996DE19600208A1 Video signal processor circuit e.g. for VHS video recorder
07/09/1996US5535443 Negative feedback control circuit having a common line for input and output signal
06/1996
06/26/1996EP0718964A2 Switchable oscillator circuit and method
06/25/1996US5530924 Radio station memory presets with stored audio effects
06/04/1996US5524288 Tuning of a radio receiver
05/1996
05/30/1996WO1996016472A1 Multi-frequency local oscillators
05/30/1996WO1996015652A2 Tuning system with dc-dc converter
05/15/1996EP0712104A2 Multi-channel transponder with channel amplification at a common lower frequency
05/15/1996CN1122536A 无线电接收机 Radio receiver
04/1996
04/30/1996US5513385 Reception apparatus, signal reproducing apparatus using reception apparatus and control method thereof
04/25/1996WO1996012341A1 Wide band radio-frequency converter having multiple use of intermediate frequency translators
04/25/1996CA2202769A1 Wide band radio-frequency converter having multiple use of intermediate frequency translators
04/24/1996EP0708528A1 Radio receiver with automatic searching of stations
04/10/1996CN1120283A Double tuned RF circuit with balanced secondary
04/09/1996US5507021 Method to input alphanumerical information into a device having a central computer, a memory, and a keypad
03/1996
03/27/1996CN1119391A Bandswitchable double tuned RF circuit with balanced secondary
03/21/1996DE19533774A1 Keyboard operated tuning control method for receiver
03/20/1996CN1118979A Remote control device having a self illumination circuit and self illuminating method thereof
03/13/1996EP0701341A2 Network follow processing method and RDS receiver executing same
03/12/1996US5499394 Filter switching circuit
03/12/1996US5499056 Bandswitchable double tuned RF circuit with balanced secondary
02/1996
02/29/1996WO1996006485A1 Broadcasting station data detecting apparatus for a mobile body and broadcast receiving apparatus for mobile bodies
02/20/1996US5493718 Dual-channel low current low noise block downconverter
02/14/1996EP0696871A1 Bandswitchable double tuned RF circuit with balanced secondary
02/14/1996EP0696870A1 Double tuned RF circuit with balanced secondary
01/1996
01/17/1996CN1115139A Synthesizer receiver
01/10/1996EP0691740A2 Radio station memory presets with stored audio effects
01/10/1996EP0691736A1 Control of audio effects in radio receivers
01/10/1996EP0681775A4 Automatic tuning radio/tv using filtered seek.
01/09/1996US5483685 Quick channel selection system for broadcast areas having small number of active channels
01/09/1996US5483209 Reception band switching circuit with variable attenuation control
01/02/1996US5481227 Oscillator, synthesizer tuner circuit and AM synchronous detect circuit employing the oscillator
12/1995
12/14/1995DE4420424A1 Controlling transmitter memory of radio receiver for automatic tuning
12/13/1995EP0687081A1 RDS receiver using EON information
12/13/1995EP0686324A1 Receiver having an adjustable bandwidth filter
12/13/1995EP0686318A1 High-frequency wideband tuner
12/12/1995US5475871 Communication system with control signal based tuning
12/07/1995WO1995033307A1 Variable-frequency oscillator circuit
12/05/1995US5473442 VCE control of a cable converter unit
11/1995
11/30/1995DE4418432A1 Variable frequency oscillator with feedback network coupled to amplifying network
11/29/1995EP0684711A1 Method of and apparatus for selecting a broadcast station using programme type information transmitted on a subcarrier in the programme signal
11/28/1995US5471652 Frequency synthesizer and multiplier circuit arrangement for a radio telephone
11/15/1995EP0681775A1 Automatic tuning radio/tv using filtered seek
10/1995
10/31/1995US5463362 Tuner circuit having a switching diode to change receiving bands
10/25/1995EP0679024A2 Circuit with a high frequency receiver stage and a transmission stage
10/25/1995EP0678981A2 High-frequency receiving stage
10/04/1995CN1109659A Resonator utilizing width expansion mode
09/1995
09/27/1995CN1109250A Radio selective calling receiver having synthesizers
08/1995
08/31/1995WO1995019074A3 High-frequency wideband tuner
08/30/1995EP0669721A2 Oscillator, synthesizer tuner circuit and AM synchronous detect circuit employing the oscillator
08/23/1995EP0668656A1 A tuner for a satellite broadcasting receiver
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