Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8045066 | Fully integrated tuner architecture An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programmable attenuation and a programmable gain low noise amplifier. Frequency conversion cir... | 10/25/2011 |
| 8023047 | Digital broadcasting system and method of processing data A digital broadcast receiver is presented. The digital broadcast receiver includes a tuner for receiving a DTV signal, a known data detector for detecting position information of the known data sequences from the DTV signal, an equalizer for compensating a channel d... | 09/20/2011 |
| 7944511 | Front-end module and television set A front-end module for receiving analog and digital broadcast signals is provided. The front-end module includes frequency conversion means, digital satellite demodulation means, intermediate frequency conversion means, analog demodulation means, digital terrestrial... | 05/17/2011 |
| 7834937 | Digital IF demodulator A digital IF demodulator includes an analog-to-digital (A/D) converter that receives an analog IF signal and converts it to a digital IF signal. A parallel multiplier then down-converts the digital IF signal to a baseband signal having a video component and an audio... | 11/16/2010 |
| 7821581 | Fully integrated tuner architecture An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programmable attenuation and a programmable gain low noise amplifier. Frequency conversion cir... | 10/26/2010 |
| 7733426 | DTV receiving system and method of processing DTV signal A digital television (DTV) receiving system includes a tuner, a demodulator, a known data detector, an equalizer, a transmission detector, and a block decoder. The tuner receives a DTV signal having a data frame in which main and mobile service data are multiplexed.... | 06/08/2010 |
| 7548281 | Demodulator circuit for digital television and demodulation method An apparatus may include a sort circuit for receiving first and second baseband signals, where the sort circuit shifting frequencies of the first and second baseband signals. The apparatus may also include a removal circuit for receiving the shifted first and second... | 06/16/2009 |
| 7542100 | Video receiver with adaptive image rejection An analog video receiver implemented in an integrated circuit device. The analog video receiver includes first and second mixing circuits to generate a complex baseband signal by mixing a carrier-frequency analog video signal with respective sinusoids of a quadratur... | 06/02/2009 |
| 7477326 | HDTV chip with a single IF strip for handling analog and digital reception Methods and systems for processing television signals are disclosed herein, and may comprise communicating analog and digital intermediate frequency (IF) signals via a single processing path that couples a TV radio frequency (RF) tuner to an IF demodulator and/or to... | 01/13/2009 |
| 7444126 | Signal-to-noise optimized fully monolithic video receiver IF channel In a video IF channel the gain of the circuit is achieved ahead of the IF filter and the output of the filter, including its noise, need only be amplified a relatively small amount, thus preserving an acceptable signal to noise ratio. In one embodiment, a variable g... | 10/28/2008 |
| 7428276 | Method and apparatus for channel impulse response estimation in GSM systems A method for estimating channel impulse response (CIR) in a communication system includes converting RF analog signals to obtain baseband digitized signals, sampling the baseband digitized signals according to the symbol period or bit period, cross-correlating at le... | 09/23/2008 |
| 7428022 | Multipath video reception system A system is presented for the multipath reception of video signals, including sound an/or image signals. The system includes at least two receivers and a diversity unit. At least one receiver receives and processes analog video signals, while the one or more remaini... | 09/23/2008 |
| 7423699 | Fully integrated tuner architecture An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programable attenuation and a programable gain low noise amplifier. Frequency conversion circu... | 09/09/2008 |
| 7418192 | Dynamic key frame generation and usage A dynamic method and system for processing video source frames (e.g., a television movie) with a video processing system (VPS) that includes a processor, a memory structure, input devices, and an output display. The video source frames, which are received by the VPS... | 08/26/2008 |
| 7406137 | Carrier recovery system and method thereof A carrier recovery system includes an in-phase mixer for mixing an incoming signal with an in-phase reference signal to produce an in-phase baseband signal; a quadrature-phase mixer for mixing the incoming signal with a quadrature-phase reference signal to produce a... | 07/29/2008 |
| 7373652 | Server-centric search function in an interactive program guide Techniques for searching a program guide database. In accordance with a method, one or more search criteria (e.g., keywords) are received and a request for a search is then sent, along with the search criteria, to a head end of an information distribution system. In... | 05/13/2008 |
| 7369155 | Apparatus and method for rejecting co-channel interference signal Methods and television receivers for rejecting a co-channel interference signal from a first digital signal. A first digital signal is delayed to output a first delayed signal. In this method, an synthesized interference signal is generated based on the first digita... | 05/06/2008 |
| 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 |
| 7359690 | Single path front end with digital AGC in SDARS system A method and apparatus for automatically controlling the gain of a digital radio receiving circuit in which a single set of analogue amplifiers is used as the front end to feed two separate digital back-end, demodulating circuits, and in which, for optimal performan... | 04/15/2008 |
| 7359311 | Decoding method and apparatus using channel state information for use in a wireless network receiver A method, apparatus, and carrier medium for determining channel state information (CSI) in an OFDM radio receiver. The receiver is for receiving packets of OFDM data as a result of OFDM data being transmitted. The method includes forming an estimate of the channels ... | 04/15/2008 |
| 7352411 | Digital IF demodulator A digital IF demodulator includes an analog-to-digital (A/D) converter that receives an analog IF signal and converts it to a digital IF signal. A parallel multiplier then down-converts the digital IF signal to a baseband signal having a video component and an audio... | 04/01/2008 |
| RE40175 | 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... | 03/25/2008 |
| 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 |
| 7342614 | Methods and apparatus for tuning signals Methods and apparatus for tuning are disclosed. One embodiment of the invention is directed to a tuner formed on a substrate. The tuner comprises a first die that receives an analog input signal and processes the analog input signal using analog processing circuitry... | 03/11/2008 |
| 7340230 | Receiver architectures utilizing coarse analog tuning and associated methods Receiver architectures and associated methods are disclosed that provide initial analog coarse tuning of desired channels within a received signal spectrum, such as a set-top box signal spectrum for satellite communications. These architectures provide significant a... | 03/04/2008 |
| 7336939 | Integrated tracking filters for direct conversion and low-IF single conversion broadband filters A radio frequency (RF) tuner includes a programmable tracking filter bank receiving an RF input and outputting a filtered RF signal. A mixer stage receives the filtered RF signal and outputs a first quadrature component of the filtered RF signal and a second quadrat... | 02/26/2008 |
| 7337386 | Digital transmitter/receiver system having a robust error correction coding/decoding device and error correction coding/decoding method thereof An error correction coding device includes a time divider for dividing field data of L packets into N data packets and (L-N) parity packets, a first RS (Reed-Solomon) encoder adding parities of a predetermined number of bytes to the data packets, respectively, a sto... | 02/26/2008 |
| 7337464 | Set-top box reformatter A broadcasting system including a transmitter operative to transmit a signal in a first transmission format, a receiver operative to receive the signal, a reformatter operative to reformat the received signal into a second transmission format, and a set-top box (STB... | 02/26/2008 |
| 7333155 | Quadratic video demodulation with baseband nyquist filter A television tuner is fully implemented on a monolithic integrated circuit. The television tuner includes a baseband SAWF function fully integrated in silicon. The SAWF function includes trap and bandpass filters. A video demodulation circuit includes an I, Q demodu... | 02/19/2008 |
| 7333791 | Use of an image reject mixer in a forward data channel tuner Disclosed are systems and methods which utilize an image reject mixer in an out-of-band mixer application such as in a forward data channel frequency converter. For example, according to a preferred embodiment, an image reject mixer is utilized to provide a relative... | 02/19/2008 |
| 7327406 | Methods and apparatus for implementing a receiver on a monolithic integrated circuit A monolithic integrated circuit includes a tuner and a SAW filter function. The tuner receives a radio frequency (RF) television signal that has a range of fundamental frequencies from 55 mega hertz (Mhz) to 880 Mhz. The tuner down converts the RF television signal ... | 02/05/2008 |
| 7327792 | Digital video system and control method thereof A digital video system for wirelessly transmitting a signal to a display device, including a receiver that analyzes a packet of the signal wirelessly received through a first transmitting/receiving unit to check the transmission error rate. The receiver externally s... | 02/05/2008 |
| 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 |
| 7321754 | Radio-frequency signal frequency conversion device for a low power RF receiver The radio-frequency signal frequency conversion device generates intermediate complex signals (IF) for a correlation stage of a low power RF receiver. In order to do this, the device includes a first selective pass-band filter for filtering radio-frequency signals p... | 01/22/2008 |
| 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 |
| 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 |
| 7315333 | TV tuners and methods thereof TV tuners and methods thereof are provided. A TV tuner includes a first frequency converting circuit, a second frequency converting circuit, and a demodulator. The first frequency converting circuit, switchable between a first operating mode and a second operating m... | 01/01/2008 |
| RE39956 | 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... | 12/25/2007 |
| 7312833 | Channel equalizing apparatus and method for digital television receiver Disclosed is a channel equalizing apparatus and method for a digital television receiver that performs channel equalization using equalizing algorithms. The channel equalizing apparatus includes a channel equalizing section for compensating for channel distortion us... | 12/25/2007 |
