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| Number | Title | Issue Date |
| 7847864 | All digital radio frequency modulator All digital RF modulator. An RF modulator, implemented using only digital techniques, obviates the need for an additional board, implemented using discrete analog components, to perform the necessary modulation to provide the RF output signal for use with a display ... | 12/07/2010 |
| 7365766 | Video-assisted apparatus for hearing impaired persons There is described a method for providing audio and visual communication between a speaker and at least one hearing impaired person. The method comprises the steps of providing the speaker with a headset frame having a camera attached thereto and positioned to captu... | 04/29/2008 |
| RE40256 | Communication system At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point g... | 04/22/2008 |
| RE40241 | Communication system At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point g... | 04/15/2008 |
| 7359450 | Digital transmission of broadcast signals, including HDTV signals, over a microwave link Methods and apparatus are provided for the provision of high definition television services over an analog or digital broadcast infrastructure. In one aspect, the present invention provides a method for transmitting a plurality of digital data streams over an analog... | 04/15/2008 |
| 7352864 | Display device A display device comprises a nonvolatile memory for storing an amount of adjustment obtained in a blanking adjustment most recently performed for a particular video signal, means for judging whether or not the particular video signal is inputted, means for masking a... | 04/01/2008 |
| 7345715 | Apparatus and method for transmitting and receiving multiple signals inclusively An apparatus and method for transmitting and receiving multiple signals inclusively in one channel are provided. The apparatus for transmitting multiple signals inclusively includes a single-sideband signal synthesis unit which synthesizes single-sideband signals ha... | 03/18/2008 |
| 7327403 | VSB reception system with enhanced signal detection for processing supplemental data A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy ... | 02/05/2008 |
| 7319808 | Input-output circuit, recording apparatus and reproduction apparatus for digital video signal A video signal input-output circuit and a recording-reproduction apparatus in which a digitally compressed video signal input in packet form can be recorded and reproduced efficiently and in stable fashion. In this apparatus, a clock reference is detected from a pac... | 01/15/2008 |
| 7319495 | VSB reception system with enhanced signal detection for processing supplemental data A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy ... | 01/15/2008 |
| 7319731 | High precision continuous time gC BPF tuning High precision continuous time gmC BPF (Band Pass Filter) tuning. A novel approach is presented by which a continuous time signal serves as a BPF control voltage for tuning of a BPF within a communication device (e.g., transceiver or receiver). A PLL (Pha... | 01/15/2008 |
| 7317492 | VSB reception system with enhanced signal detection for processing supplemental data A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy ... | 01/08/2008 |
| 7317491 | VSB reception system with enhanced signal detection for processing supplemental data A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy ... | 01/08/2008 |
| 7313208 | Pre-equalization for low-cost DTV translators A low cost DTV translator, which translates an incoming signal on channel A to an outgoing signal on channel B, includes a transmitter pre-equalizer whose taps are configured with tap values that pre-distort a signal so as to negate distortion caused by a high power... | 12/25/2007 |
| 7310112 | Information recording device and communication method thereof, electronic camera, and communication system An information recording device in which low-noise and clear image or audio information can be recorded by stopping the generation of a carrier in an oscillation section of wireless communication device during an imaging or sound recording process. The information r... | 12/18/2007 |
| 7307665 | Method and system for generating reference signals with improved correlation characteristics for accurate time of arrival or position determination The present invention provides a method and system for generating reference signals that, when correlated with synchronization code signals or other components of broadcast TV signals, yield minimal sidelobes, produce large main peaks, and have minimal couplings to ... | 12/11/2007 |
| 7302237 | Wideband signal generators, measurement devices, methods of signal generation, and methods of signal analysis A wideband signal generator according to one embodiment of the invention includes a variable frequency source and a direct digital synthesizer. Local oscillators, signal analyzers, modulators, demodulators, and other equipment including one or more such generators a... | 11/27/2007 |
| 7298421 | VSB reception system with enhanced signal detection for processing supplemental data A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy ... | 11/20/2007 |
| 7298422 | VSB reception system with enhanced signal detection for processing supplemental data A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy ... | 11/20/2007 |
| 7292286 | Multichannel quadrature modulation A method and apparatus for modulating both quadrature components of each of a plurality of RF signals comprising a multichannel signal is disclosed. By employing certain digital signal processing techniques, a pair of composite baseband signals is produced in manner... | 11/06/2007 |
| 7289162 | VSB reception system with enhanced signal detection for processing supplemental data A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy ... | 10/30/2007 |
| RE39902 | Communication system At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point g... | 10/30/2007 |
| 7272657 | System and method for displaying video streams ranked by user-specified criteria A plurality of video streams are simultaneously displayed on a terminal coupled to a network. The video streams are ranked according to a set of ranking criteria and displayed in accordance with the ranking. Highly ranked video streams may be displayed in prominent ... | 09/18/2007 |
| 7266350 | Radio frequency tuner A tuner for analogically and digitally modulated signals comprises a single tuner arrangement for converting any selected analog or digital channel to baseband or zero 1F quadrature signals. Simple analog low pass filtering is applied before conversion in an ADC to ... | 09/04/2007 |
| 7263277 | Control signal transmitting and receiving techniques for video/audio processing IC and apparatus therefor Control signal transmitting and receiving methods for video/audio processing integrated circuit (IC), the method applied to a video player, and an apparatus therefor are provided. The control signal transmitting method, in a video player having an integrated circuit... | 08/28/2007 |
| 7263713 | Television signal distributor apparatus, receiver apparatus, television signal transmission system and method In a television signal transmission system, CS broadcasting signals received via a master antenna are converted into intermediate frequency signals in an LNB (Low Noise Block Down Converter). The CS intermediate frequency signals then undergo conversion of the modul... | 08/28/2007 |
| 7259797 | VSB reception system with enhanced signal detection for processing supplemental data A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy ... | 08/21/2007 |
| 7256840 | Digital television signal translator A tuner of a digital television signal translator tunes to receive an RF digital television signal on a first selected television channel. A demodulator provides a baseband digital television signal from the RF digital television signal to which the tuner is tuned. ... | 08/14/2007 |
| 7256839 | VSB reception system with enhanced signal detection for processing supplemental data A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy ... | 08/14/2007 |
| 7236758 | Integrated wireless multimedia integrated circuit An integrated circuit having a transmit chain configured to provide direct FM modulation of a voltage controlled oscillator of a frequency synthesizer by a composite signal that includes audio and video components, and a receive chain configured to provide a televis... | 06/26/2007 |
| 7231516 | Networked digital video recording system with copy protection and random access playback In a multimedia recording and playback network for receiving from a content server a service package of multimedia content, the network including a media server in communication with the content server, a method of securely transmitting a master encryption key from ... | 06/12/2007 |
| 7227915 | Receiver and AGC method A receiver receives a multiplex broadcasting wave of a terrestrial wave and a satellite wave and executes AGC. As for the terrestrial wave, only a frequency band of the terrestrial wave is extracted by a filter for the terrestrial wave, and the AGC on the terrestria... | 06/05/2007 |
| 7227346 | Two channel digital phase detector The invention is directed to a digital phase detector that comprises a splitter and phase shifter to receive a signal of a device under test and produce a first signal that is substantially identical to the received signal and a second signal that is phase shifted r... | 06/05/2007 |
| 7224400 | Sharp-tuned filter-combiner for combining adjacent TV channels A filter-combiner for combining television signals from adjacent channels is presented herein. The combiner has two inputs that respectively receive an NTSC combined visual and aural signal and a DTV signal wherein the NTSC signal and the DTV signal are in adjacent ... | 05/29/2007 |
| 7221950 | Auto sensing home base station for mobile telephone with remote answering capabilities The present invention discloses in one embodiment a mobile telephone capable of communicating with a home base station through radio signals. The mobile telephone registers with a home base station before beginning to communicate with the home base station. The home... | 05/22/2007 |
| 7206030 | Fast-convergence two-stage automatic gain control (AGC) Disclosed are methods and systems for automatic gain control (AGC) in circuits. The disclosed methods and systems provide accurate and rapidly converging automatic gain control suited for video applications. According to disclosed preferred embodiments of the invent... | 04/17/2007 |
| 7194083 | System and method for interfacing plain old telephone system (POTS) devices with cellular networks A system and method for interfacing plain old telephone system (PATS) devices with a cellular network is presented. In a broad sense, the system includes an interface that bridges the POTS devices with the cellular network. The interface is configured to convert POT... | 03/20/2007 |
| 7167212 | VSB reception system with enhanced signal detection or processing supplemental data A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy ... | 01/23/2007 |
| 7167528 | Modulation system for modulating data onto a carrier signal with offsets to compensate for doppler effect and allow a frequency synthesizing system to make steps equal to channel bandwidth A method and system for modulating data onto a carrier signal in a plurality of channels, each of the channels having a channel bandwidth, can be created for use in any two-way satellite communication system or other wireless communication application where frequenc... | 01/23/2007 |
| 7151576 | Method and apparatus for modulating video signals A luminance component of a video signal is modulated in a first frequency band. A first chrominance component of the video signal is modulated in a second frequency band and is mixed with an audio component. A second chrominance component of the video signal is modu... | 12/19/2006 |
