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Class 455/187.1 - Separate tuned circuits for each channel or station


Subclass of Class 455 - Telecommunications
Definition: Subject matter including a plurality of separate and distinct
No. of patents: 23
Last issue date: 10/14/2008


NumberTitleIssue Date
7437124Satellite radio receiver that displays information regarding one or more channels that are not currently being listened to
A satellite radio receiver includes a display that displays information regarding one or more channels that are not currently being listened to. For a music channel, this information may include the name of the artist, the song title, time left in the song, etc. For...
10/14/2008
7403755Searching receiver
A monitoring receiver accepts program preferences from an operator. When active, the receiver automatically monitors alternate frequencies for programming that matches the program preferences, alerts the operator when a match is found, and may switch to a preferred ...
07/22/2008
7398051Satellite radio receiver that displays information regarding one or more channels that are not currently being listened to
A satellite radio receiver includes a display that displays information regarding one or more channels that are not currently being listened to. For a music channel, this information may include the name of the artist, the song title, time left in the song, etc. For...
07/08/2008
7359206Radio frequency isolation system and cover assembly for vacuum electron device
A self-guiding cover assembly for a vacuum electron device (VED) enclosure (704, 1316) has a cover (1002, 1302), a pair of guide plates, and a pair of guide elements (1304, 1306). The cover has at least one electrical connector (1314) dis...
04/15/2008
7289780Band switchable type tuning circuit of television signal
A band switchable type tuning circuit has first switch means interposed between a power supply Vcc and an anode of a switch diode, a first resistor whose one end is connected to a cathode of the switch diode, second switch means interposed between the other end of t...
10/30/2007
7236755Broadcast wave receiving apparatus
Herein disclosed is a broadcast wave receiving apparatus, comprising: first and second tuning circuits each having a resonance frequency; first controlling means for controlling one of the first and second tuning circuits to ensure that the resonance frequency of on...
06/26/2007
7136648Candidate system search and soft handoff between frequencies in a multi-carrier mobile communication system
The present invention encompasses a mobile station comprising a transmitter for transmitting outgoing signals from the mobile station and a receiver for receiving incoming signals, the receiver coupled to the transmitter and having N sub receivers, where N is an int...
11/14/2006
7117743Multiple-transducer sensor system and method with selective activation and isolation of individual transducers
A transducer-based sensor system, including a transducer array having a plurality of transducers, a selector coupled with the transducer array and an output processing subsystem. Defined between each transducer and the output processing subsystem is an output transm...
10/10/2006
7054606Digitally calibrated narrowband filter with analog channel compensation
An apparatus comprising a first circuit, a second circuit and a third circuit. The first circuit may be configured to filter an analog input signal in an analog domain in response to one or more control signals. The second circuit may be configured to convert the an...
05/30/2006
7006162Tuner
An analogue single conversion tuner comprises a plurality of channels (1, 2, 3) for covering the whole of a desired reception bandwidth. Each tuner comprises an image reject mixer (18) connected to the tuner input (4) by a single tracking filter...
02/28/2006
6888580Integrated single and dual television tuner having improved fine tuning
Improved television tuning circuits are disclosed. An example tuning circuit includes a fraction-N frequency synthesizer facilitating fine tuning. This tuning circuit may be formed using relatively few independent oscillators. The tuning circuit lends itself to the ...
05/03/2005
6606485Candidate system search and soft handoff between frequencies in a multi-carrier mobile communication system
The present invention encompasses a mobile station comprising a transmitter for transmitting outgoing signals from the mobile station and a receiver for receiving incoming signals, the receiver coupled to the transmitter and having N subreceivers, where N...
08/12/2003
5905948High frequency channel selecting circuit for radio receiver and method of manufacturing tuning circuits therefor
A therefor method of manufacturing tuning circuits for constituting a high frequency channel selecting circuit for a radio receiver. The method can eliminate the complicated coil inductance adjustment for tracking on the circuit board, so that the circuit...
05/18/1999
5867771Circuit arrangement comprising a tuner and a splitter-modulator
A circuit arrangement includes a tuner and a splitter-modulator having a splitter and a modulator. The splitter includes an RF signal input for receiving an RF input signal, an RF signal output for supplying an RF output signal, a first line for applying ...
02/02/1999
5239701Radio receiver with improved channel selection and reception
A radio receiver responsive to a received RF signal containing a plurality of channel frequencies each having broadcast information which includes a circuit for producing a wide band version of the received RF signal and a circuit for producing a narrow b...
08/24/1993
4870696Mobile communications system capable of avoiding interference with control channel
A mobile communications system having a fixed unit connected to a public telephone network by a subscriber line, and a portable unit connectable to the fixed unit by radio channels which comprise at least one control channel and a plurality of speech chan...
09/26/1989
4758794Sound intermediate frequency discriminator
A discriminator for a plurality of sound intermediate frequencies which are different from each other includes a plurality of selectively operable resonance circuits each of which is formed of a winding of a respective fixed inductance value and a capacit...
07/19/1988
4517595Pay television channel selector
In a pay television channel selector, a reception contract selecting portion comprises parallel circuits which are disposed in correspondence with channels and whose impedances are made different between the contracted and uncontracted channels, and a con...
05/14/1985
4368541Multiplexing arrangement for a plurality of voltage controlled filters
A multiplexing arrangement enables a plurality of control voltages for controlling respective ones of a plurality of varactor controlled tunable filters, employed, e.g., prior to the tuner of a television receiver to reject undesired signals, to be genera...
01/11/1983
4305158Television tuner
A television tuner comprises a high frequency amplifier for receiving a high frequency signal received by an antenna, a local oscillator, and a mixer for mixing the high frequency signal from the high frequency amplifier and the oscillation frequency sign...
12/08/1981
4031470Operation program-presetting system
An Operation Program-Presetting System comprising twelve program data-supplying switches arranged in the same order as the time-indicating notations on a clock dial with means for generating a unique coded signal corresponding to the data-supplying switch...
06/21/1977
4011515Tunable scanning radio receiver
A scanning radio receiver that is electronically tuned for station selectivity over a given band of frequencies. Varactor diodes contained in the RF and local oscillator stages of the scanning receiver circuitry are voltage controlled to select a finite n...
03/08/1977
3949308Varactor control unit using Q variable inductances
A circuit for providing TV channel selection and tuning voltages utilizes a plurality of fixed resistors and a plurality of Q variable inductances. A channel selection switch connects particular resistors and Q variable inductances for channel selection a...
04/06/1976
 
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