Thomson Licensing

Thomson Licensing S.a.

Thomson Consumer Electronics Inc.

Interdigital Madison Patent Holdings

Daniel Mark Hutchinson

Gary Dean Grubbs

Mark Francis Rumreich

Matthew Thomas Mayer

Clint Alan Ecoff

Ricardo Haro

Max Ward Muterspaugh

William John Testin

Gene K Sendelweck

John Alan Hague

Leroy S Wignot

David Glen White

Rodger Anthony Diemer

Rick Wayne Miller

Alexander Sarapin

Rejimon Gnanammal Varghese

Dinesh Ambravaneswaran

An apparatus and method for applying signals into a filter circuit is disclosed. The apparatus includes a filter circuit that filters an input signal and outputs a signal in a first frequency range, and a filter circuit that filters the input signal and outputs a signal in a second frequency range that is different from the first frequency range, wherein the second filter circuit includes an interface circuit for inserting a signal used to receive the first frequency range signal. The method includes receiving a signal containing content from a first source in a first frequency range and content from a second source in a second frequency range, providing filtering to produce a signal containing the first content, providing filtering to produce a signal containing the second content, and applying a signal to second content signal processing circuitry, the signal provided used for receiving the content from the first source.

Apparatus and method for inserting electrical power or control signals into a diplexer circuit

A method and apparatus configures a power level for a device able to receive audio, video, and data signals. An input signal is received by a receiver capable of receiving broadcast data signals and digital home networking signals. The system determines if the receiver is operating in a first mode having a first power level or a second mode having a second power level based on a type of input signal received by the receiver. A control signal is generated for modifying at least one setting on a first circuit for configuring the first circuit to operate according to the first power level if the input signal is a first type of input signal. The control signal is provided to the first circuit and the first circuit is configured to operate according to the first power level based on the control signal.

System and method for conserving energy in a digital home networking device

An apparatus () such as a television signal receiver provides an AGC function by using multiple feedback sources which provide both narrow band and wide band AGC signals in an adaptive manner. According to an exemplary embodiment, the apparatus () includes a tuner () operative to generate first and second IF signals. A first demodulator () is operative to generate a first AGC signal responsive to the first IF signal. A second demodulator () is operative to generate a second AGC signal responsive to the second IF signal. A wide band AGC detector () is operative to generate a third AGC signal responsive to at least one of the first and second IF signals. A switch () is operative to selectively provide one of the first, second and third AGC signals to the tuner () responsive to a predetermined condition.

Apparatus and method for providing an AGC function using multiple feedback sources

An apparatus such as a television signal receiver employs an efficient and cost-effective signal processing architecture which enables, among other things, the reception and processing of both analog and digital signals from multiple signal sources, such as but not limited to, terrestrial and cable signal sources. According to an exemplary embodiment, the apparatus includes a first tuner operative to generate a first IF signal corresponding to a first RF signal. A first demodulator is operative to generate a first demodulated signal corresponding to the first IF signal. A second tuner is operative to generate a second IF signal corresponding to a second RE signal. A second demodulator is operative to generate a second demodulated signal corresponding to the second IF signal. A third demodulator is operative to generate a third demodulated signal corresponding to one of the first and second IF signals.

Apparatus and method for processing analog and digital signals from multiple signal sources

The present invention provides a method and apparatus for processing a received television signal comprising one of a first type of television signal and a second type of television signal. Specifically, the method comprises amplifying the received television signal in response to a control signal. If the received television signal comprises the first type of television signal, the RF amplifier gain is reduced when the received television signal exceeds a first signal level. If the received television signal comprises the second type of television signal, the RF amplifier gain is reduced when the received television signal exceeds a second signal level. The second signal level is greater than the first signal level. A concomitant apparatus is also provided. As the first signal level is lower for the first type of television signal, reception of the first type of television signal is improved.

Method and apparatus for providing dual automatic gain control delay settings in a television receiver

A method () and a system () for providing video signals to video displays includes the steps of receiving at least one input video signal (), dithering the non-uniformity color correction (), applying the non-uniformity color correction to the input video signal to generate a color corrected video signal (), and increasing a frame rate of the color corrected video signal (). Gamma correction () can be applied to the color correction. Generating a dithered non-uniformity color correction can include selecting from a data storage () a plurality of RGB correction matrices (), measuring at least one brightness level of the input video signal, selecting for the picture level correction a first RGB correction matrix if the brightness is within a first range of values (), a second RGB correction matrix if the brightness is within a second range of values (), and interpolating () the plurality of RGB correction matrices if the brightness is within a third range of values.

Color non-uniformity correction for LCOS

An IF signal processing arrangement for processing both analog and digital signals is disclosed in the present application. The signal processing arrangement includes a signal source for providing one of digital and analog IF signals, a first SAW filter having an output for filtering the IF signal, digital signal processing circuitry coupled to the output for processing a filtered digital IF signal, and analog signal processing circuitry coupled to the output for processing which includes filtering a filtered analog signal.

Signal processing apparatus

A method and apparatus within a television receiver for electronically aligning signals within the receiver by controlling support circuitry for an IF module. A control voltage source controls both video alignment and picture IF (PIF) mute functions. The DAC is coupled to a video level control circuit within the video amplifier circuitry of the television receiver. The control signal controls both the video level as well as a PIF mute circuit.

Apparatus for providing television receiver alignment functions

A digital video system includes a sample rate converter and an inverse-sample rate converter. The sample rate converter converts video data from a non-orthogonal pixel domain to an orthogonal pixel domain. The inverse-sample rate converter converts the video data from the orthogonal pixel domain to the non-orthogonal pixel domain. The inverse sample rate converter utilizes a timing signal generated by the sample rate converter when converting the video data from the orthogonal pixel domain to the non-orthogonal pixel domain.

Sample rate converter system

A method and apparatus within a television receiver for electronically aligning signals within the receiver by controlling support circuitry for an IF module. A video amplifier is coupled to an output of the IF module. A control voltage source (DAC ) controls a DC level control circuit within the video amplifier ( ) such that the video signal is amplified and DC level shifted to align the video signal with down stream circuitry.

Video amplifier with integrated DC level shifting

In a quadrature FM detector, demodulation is performed by a product detector which multiplies an amplitude limited FM modulated information signal by a version of the amplitude limited FM modulated information signal which has been phase shifted by a phase shifting network including a single tuned LC circuit. In order to assure that the LC circuit is tuned to the carrier frequency of the FM signal, the LC circuit is tuned by a variable impedance device in response to a control signal generated by a bus controlled DAC. The control signal is coupled to the variable impedance device at the same pin of an integrated circuit where the LC circuit is coupled to the demodulator.

Bus aligned quadrature FM detector

The present invention concerns a high impedance signal source driving a relatively low input impedance mechanical resonating device such as a ceramic filter having an input impedance which varies with frequency. The high impedance source is further loaded by a resonant circuit tuned to the center frequency of the mechanical resonating device. The skirts of the resonant tuned circuit decrease in impedance on both sides of the center frequency of interest substantially compensating for the change of circuit gain with frequency due to the change of input impedance with frequency of the ceramic filter.

Growing community of inventors

Carmel, IN, United States of America

Daniel Mark Hutchinson