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| Number | Title | Issue Date |
| 8036282 | Multi-tiered quantization of channel state information in multiple antenna systems A multi-tiered CSI vector quantizer (VQ) is provided for time-correlated channels. The VQ operates by quantizing channel state information by reference to both the current channel state information and a prior channel state quantization. A system is also provided th... | 10/11/2011 |
| 7391814 | Gain control method and apparatus An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty uses an analog to digital conversion method that increases the number of ... | 06/24/2008 |
| 7369615 | Soft demodulation method and apparatus A soft demodulation method and apparatus including calculating partial sums for a unit of each predetermined number of bits of a codeword received from a channel; calculating a value of each entry of the decoding table by referring to the partial sums; and detecting... | 05/06/2008 |
| 7359437 | Encoding method and system for reducing inter-symbol interference effects in transmission over a serial link A communication system including a transmitter, a receiver, and a serial link, in which encoded data (e.g., encoded video data and encoded auxiliary data) are transmitted from the transmitter to the receiver. The serial link can but need not be a TMDS or TMDS-like l... | 04/15/2008 |
| 7342944 | Method and apparatus for decoding a coded digital audio signal which is arranged in frames containing headers With audio data reduction on the basis of ISO/IEC standard 11172-3, a frame length varying by 8 bits is used at a sampling frequency of 44.1 kHz in order to arrive, on average, at a particular fixed data rate. The lengthening of a data frame is signalled by a paddin... | 03/11/2008 |
| 7340103 | Adaptive entropy encoding/decoding for screen capture content Adaptive entropy encoding and decoding techniques are described. For example, a screen capture encoder and decoder perform adaptive entropy encoding and decoding of palettized screen capture content in screen capture video. The encoder selects between different entr... | 03/04/2008 |
| 7330466 | PCM-based data transmission system and method A transmitting terminal generates a stream of a given number of PCM codes whose polarity bits are each fixed at “1”, and transmits it to a receiving terminal. Subsequently, the transmitting terminal creates a data PCM stream made of full-bit PCM codes by fixing ... | 02/12/2008 |
| 7289565 | Multiple description coding communication system A method and apparatus reliably encode and decode information over a communication system. The method includes transforming two coefficients into two pairs of random variables, one random variable in each pair having substantially equal energy as one random variable... | 10/30/2007 |
| 7266152 | Digital signal processing device and digital signal processing method A device for performing predetermined processing on an input signal that may have a signal amplitude of more than one bit. The input signal is obtained by subjecting one-bit serial signals to predetermined signal processing, wherein the signal amplitude of more than... | 09/04/2007 |
| 7242719 | Method and apparatus for space-saving-variable length encoding and decoding A sequence of input information items is space-saving-encoded into variable-length code bit groups. Each information item is mapped on an associated code bit group of a set of bit groups, wherein the bit groups have particular lengths that are non-uniform in the set... | 07/10/2007 |
| 7233624 | Method and system for all digital gain control An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty uses an analog to digital conversion method that increases the number of ... | 06/19/2007 |
| 7221711 | Multilevel data encoding and modulation technique The multilevel data encoding and modulation technique uses a pair of complementary logic sets. In its most basic form, the sets are binary sets each containing a line level for a logical one and a line level for a logical zero for a total of four logic levels. The e... | 05/22/2007 |
| 7218790 | Adaptive entropy encoding/decoding for screen capture content Adaptive entropy encoding and decoding techniques are described. For example, a screen capture encoder and decoder perform adaptive entropy encoding and decoding of palettized screen capture content in screen capture video. The encoder selects between different entr... | 05/15/2007 |
| 7219175 | Method and system for improving the latency in a data transmission system A system for transferring packets between a packet transfer core and an application layer device over an application layer interface includes a buffer system disposed in the packet transfer core having an input for receiving packets from a packet source; an output f... | 05/15/2007 |
| 7177353 | Architecture for very high-speed decision feedback sequence estimation A method for providing a next-cycle input sample from a decision feedback equalizer to a symbol decoder using look-ahead computations such that timing contention between the decision feedback equalizer and the symbol decoder is reduced. During a symbol period, a set... | 02/13/2007 |
| 7098816 | Tri-state delta codec method and system A delta modulation method and system is provided for processing signals in a digital communications system. The method quantizes an input signal using a tri-state quantizer into a quantized value selected from a set of three different quantized values including a lo... | 08/29/2006 |
| 7075336 | Method for distributing clock signals to flip-flop circuits A method for distributing clocks to flip-flop circuits which constitute a logic circuit includes obtaining a timing slack of a first minimum delay time with respect to a minimum delay constraint time and a timing slack of a first maximum delay time with respect to a... | 07/11/2006 |
| 7072402 | Methods and apparatus for dynamically adjusting f-codes for a digital picture header The present invention provides methods and apparatus for dynamically adjusting f-codes for a digital picture header of a coded picture. A video encoder having at least one motion estimation stages is provided for encoding the current picture. Motion vectors are dete... | 07/04/2006 |
| 7054373 | Method and apparatus for modulating and demodulating data into a variable-length code and providing a sync signal to the train of codes A data-demodulating method for demodulating a variable-length code (d, k; m, n; r) having a basic code length of n bits to data having a basic data length of m bits. A train of codes is received, and a sync signal having a pattern that breaks a maximum run is detect... | 05/30/2006 |
| 7050506 | Method and apparatus for modulating and demodulating data into a variable-length code and providing a sync signal to the train of codes A method of modulating data having a basic data length of m bits, to a variable-length code (d, k; m, n; r) having a basic code length of n bits. A sync signal is added to a received train of codes after a minimum run. The sync signal has a pattern that is repeated ... | 05/23/2006 |
| 7046735 | Method and apparatus for modulating and demodulating data into a variable-length code and providing a sync signal to the train of codes Apparatus for modulating data having a basic data length of m bits, to a variable-length code (d, k; m, n; r) having a basic code length of n bits. A sync signal is added to a received train of codes after a minimum run. The sync signal has a pattern that is repeate... | 05/16/2006 |
| 7046736 | Method and apparatus for modulating and demodulating data into a variable-length code and providing a sync signal to the train of codes A data-demodulating apparatus for demodulating a variable-length code (d, k; m, n; r) having a basic code length of n bits to data having a basic data length of m bits. A train of codes is received, and a sync signal having a pattern that breaks a maximum run is det... | 05/16/2006 |
| 7047436 | Digital microelectronic circuit with a clocked data-processing unit and a converting unit A digital microelectronic circuit comprises a clocked data-processing unit (1) and a converting unit (2) which reads in data present at the output of the data-processing unit, performs a predetermined converting operation on the data and passes on the ... | 05/16/2006 |
| 7020189 | Method and apparatus for implementing digital filters in the data path of a PCM modem for efficient transition of a second analog-to-digital conversion process Method and system for implementing digital filters in the data path of a Pulse Code Modulated (PCM) modem to allow efficient transition of a second analog to digital conversion process in a communication system including monitoring the upstream data path of the comm... | 03/28/2006 |
| 7012600 | Methods for driving bistable electro-optic displays, and apparatus for use therein A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an ini... | 03/14/2006 |
| 7002913 | Packet loss compensation method using injection of spectrally shaped noise An insertion-based error concealment method and apparatus are provided whereby, instead of directly inserting white noise, a filter is created to shape the white noise. The filtered white noise is then used to replace lost data. The method of the present invention i... | 02/21/2006 |
| 7003042 | Communication system transmitting encoded signal using block lengths with multiple integral relationship A communication system for performing transmission and reception of a signal over a communication channel assesses a state of the communication channel and produces channel state information accordingly. A block length selector selects block lengths that are depende... | 02/21/2006 |
| 6975254 | Methods and devices for coding or decoding an audio signal or bit stream In a method for coding an audio signal to obtain a coded bit stream, discrete-time samples of the audio signal are transformed into the frequency domain to obtain spectral values. The spectral values are coded with a code table having a limited number of code words ... | 12/13/2005 |
| 6970512 | Method and system to improve the transport of compressed video data A method comprises determining a plurality of time intervals Tp and Tn within a variable bit rate (VBR) representation of an image sequence. The time intervals Tp are those in which a number of blocks of information per unit time is greater than a baseline value. Th... | 11/29/2005 |
| 6961347 | High-speed interconnection link having automated lane reordering A multi-lane link that automatically detects if the lanes in the link have been reordered and corrects the order of the lanes. In one embodiment, the link includes a transmitter and a receiver. The receiver is configured to receive a plurality of lanes and includes ... | 11/01/2005 |
| 6914934 | Multiplier-free methods and apparatus for signal processing in a digital communication system Signal processing operations are performed in a digital communication system receiver on a sequence of received symbols, each representing a number of information bits. The symbols correspond to points in a given modulation constellation generated by applying a pred... | 07/05/2005 |
| 6876869 | Coding assisting equipment, decoding assisting equipment, radio transmitter, and radio receiver A coding assisting equipment is provided in which transmission information is fed in such a manner as to be divided into words having a predetermined word length and is coded collectively through a computing unit that is formed as a combinational circuit. A decoding... | 04/05/2005 |
| 6865231 | High-speed interconnection adapter having automated crossed differential pair correction An adapter configured to automatically detect and compensate for differential signal inversion is herein disclosed. In one embodiment, the adapter is part of a computer network having differential conductor pairs conveying differential signals between network device... | 03/08/2005 |
| 6801579 | Method and wireless communication using unitary space-time signal constellations Disclosed is a method for wireless signal transmission of signals from an array of two or more antennas, in which each signal to be transmitted is selected from a constellation of unitary space-time signals. Each unitary space-time signal is a unitary matrix, in whi... | 10/05/2004 |
| 6760590 | Communication terminal apparatus, base station apparatus, and radio communication method A communication mode determination section 201 determines the communication mode based on the CIR measured by a CIR measurement section 219; a DRC signal creation section 202 creates a DRC signal with a number corresponding to the communication ... | 07/06/2004 |
| 6700509 | Device and method for processing a digital information signal A device and associated method for processing a digital information signal from a channel signal. The digital information signal is runlength limited with one or more constraints. The device comprises receiving means for receiving the channel signal and m... | 03/02/2004 |
| 6658042 | Method and apparatus for time tracking a signal using hardware and software A method of providing time tracking between a first signal and a second signal in a communication device. In one embodiment, a first signal is generated by the communication device and a second signal is received from an outside source. Then correlation d... | 12/02/2003 |
| 6647059 | Code division multiple access cable modem A low-cost data communication system using modems is disclosed. In the proposed system and method, a binary incoming data stream is split into several parallel sub streams by an encoding modem. These parallel sub streams are mapped into a set of unique or... | 11/11/2003 |
| 6389138 | Method and apparatus for generating a complex scrambling code sequence A complex spreading and/or scrambling code sequence generation system uses a first complex code sequence having at least two components and a second complex code sequence having at least two components. The components of the first complex code sequence ar... | 05/14/2002 |
| 6292506 | Length selectable, hardware efficient pseudorandom code generator A method and device for generating a pseudorandom electrical signal for enabling spread spectrum communication scrambling by directing data entry into pseudorandom number generator integrated circuit chip controlling registers using a length selectable fe... | 09/18/2001 |
