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| Number | Title | Issue Date |
| 7944953 | Method and apparatus for transmitting data in a data stream The invention provides a method and apparatus that addresses and resolves the issues currently affecting the ability to offer Enhanced TV, in particular, those issues concerning timing and synchronization, interaction with other modules in the STB, and distribution.... | 05/17/2011 |
| 7512159 | Method for variable performance in communication systems The present invention generally relates to the transmission of digital data, and more particularly, to the transmission of digital data in a satellite digital audio radio (“SDAR”) system. In the SDAR system, there may be different types of required services. Som... | 03/31/2009 |
| 7414971 | Method and apparatus for rate matching in a telecommunications system A method converts an input data rate associated with N units of data to an output data rate associated with M units of data. The method includes calculating N write-control parameters each associated with one of M addresses of an output memory, directing each of N v... | 08/19/2008 |
| 7403548 | System for interfacing media access control module to small form factor pluggable module A communication system includes a link module having a first serial interface for interfacing to a serial link. The link module also including a second serial interface. The system also includes a Media Access Control (MAC) module including a parallel interface. The... | 07/22/2008 |
| 7400657 | System and method for transporting multiple client data signals via a single server signal Systems and methods for conveying multiple low-bit-rate data streams over a data transport medium which is configured to transport data in a single, high-bit-rate data stream. In one embodiment, a plurality of low-bit-rate signals are received and a corresponding da... | 07/15/2008 |
| 7397803 | Method of dynamic transmit scheduling using channel quality feedback A method and system for dynamic rate switching via medium access channel layer signaling is disclosed, wherein data rates for high data rate channels are automatically shifted up or down based on a predetermined metric. In a preferred embodiment, data rates are auto... | 07/08/2008 |
| 7349450 | Multi-stage high speed bit stream demultiplexer chip set having switchable master/slave relationship A bit stream demultiplexer that couples a high-speed bit stream media to a communication Application Specific Integrated Circuit (ASIC). The bit stream multiplexer performs its demultiplexing function staged within at least two integrated circuits. The first Integra... | 03/25/2008 |
| 7333465 | Method and apparatus for transmitting and receiving high speed data in a CDMA communication system using multiple carriers The present invention is a novel and improved method and apparatus for transmitting data in a multiple carrier CDMA communication system. In the first implementation of the present invention, the data is encoded and the resulting encoded symbols are divided up and t... | 02/19/2008 |
| 7301958 | Cycle-efficient TDM timeslot remapping for network processing engines A method and apparatus for remapping channel data are presented. Multiple successive frames carrying data in timeslots are received. The timeslots are assigned to channels so that data for the channels includes interleaved data. The data from the multiple successive... | 11/27/2007 |
| 7286570 | High speed sequenced multi-channel bus Apparatus for transmitting a data stream between cards connected by a midplane breaks the data stream into a plurality of channels. The apparatus comprises a serializer for each channel. Serialized data is transmitted across the midplane to a deserializer at the des... | 10/23/2007 |
| 7262716 | Asynchronous sample rate converter and method An asynchronous sample rate converter interpolates and filters a digital audio input signal to produce a filtered, up-sampled first signal. A FIFO memory receives the first signal and stores samples thereof at locations determined by a write address and presents sto... | 08/28/2007 |
| 7254175 | Frame-accurate seamless splicing of information streams A method and apparatus for generating universal splice point adapters, where during a splicing operation an “out-point splicing adapter” is used to transition from an exit stream, while an “in-point splicing adapter” is used to transition to an entry stream.... | 08/07/2007 |
| 7199836 | Object-based audio-visual terminal and bitstream structure As information to be processed at an object-based video or audio-visual (AV) terminal, an object-oriented bitstream includes objects, composition information, and scene demarcation information. Such bitstream structure allows on-line editing, e.g. cut and paste, ins... | 04/03/2007 |
| 7197054 | Methods and apparatus for conversion of one or more data streams A system, method, apparatus, means, and computer program code that facilitate conversion of a single data stream into two or more data streams (e.g., a down rate conversion) and for systems, means and that facilitate conversion of two or more input data streams into... | 03/27/2007 |
| 7188352 | Intelligent digital audiovisual playback system Payment-based audiovisual playback system characterized by comprising a microprocessor unit, primarily including storage means for storing inter alia in digital form the visual and sound information to be used, and associated, through a number of interfaces, with di... | 03/06/2007 |
| 7161961 | STM-1 to STM-64 SDH/SONET framer with data multiplexing from a series of configurable I/O ports The present invention relates to a device for combining at least two data signals having an input data rate into a single data stream having an output data rate being higher than the input data rate for transmission on a shared medium or vice versa, particularly, to... | 01/09/2007 |
| 7158523 | Multi-link segmentation and reassembly sublayer for bonding asynchronous transfer mode permanent virtual circuits Systems and methods are described for bonding asynchronous transfer mode permanent virtual circuits using a multi-link segmentation and reassembly sublayer. A method includes: transforming a stream of asynchronous transfer mode cells into a stream of bonded asynchro... | 01/02/2007 |
| 7145912 | Demultiplexing a statistically multiplexed MPEG transport stream into CBR single program transport streams A constant bit rate single program encoded transport stream is demultiplexed from a statistically multiplexed MPEG transport stream by separating a variable bit rate program from the multiplexed MPEG transport stream, loading the sequence of pictures that form the v... | 12/05/2006 |
| 7133441 | High speed access system over copper cable plant A system for transporting a high speed data stream over a plurality of relatively low bandwidth unshielded twisted copper pairs within the local loop plant or in any environment having a plurality of copper lines, such as on campuses, within large buildings, etc. Th... | 11/07/2006 |
| 7116671 | Method and apparatus for providing OC-n virtual bridge ports A method and apparatus for intelligent packet forwarding utilizing virtual ports defined by a grouping of one or more STS-1s allocated to source and destination I/O devices (client) connected to an NxSTS-1 SONET network. A data flow path for transporting the client ... | 10/03/2006 |
| 7096481 | Preparation of metadata for splicing of encoded MPEG video and audio Metadata for splicing of an encoded digital motion video stream (such as an MPEG Transport Stream) is prepared in real time while recording at the encoding bit rate and faster than encoded bit rate for off line encoding independent of the bit rate and mechanisms for... | 08/22/2006 |
| 7082144 | Communication system using a multiplex signal carrying an auxiliary signal In a transmitting node (3) in a transmission system, a plurality of source signals are multiplexed by a multiplexer (34) into a multiplex signal. The multiplex signal is transmitted to a receiving node (5) where it is demultiplexed in the source... | 07/25/2006 |
| 7023939 | Multi-channel digital modem An interpolation filter for processing a sequence of input samples provided at an input rate controlled by an input clock, so as to generate interpolants at an output rate controlled by an output clock, which is substantially independent of the input clock. The filt... | 04/04/2006 |
| 7024685 | Transport demultiplexor with bit maskable filter The preferred embodiment of the present invention provides an improved transport demultiplexor that can receive and filter different data types before sending the data to system memory. The preferred embodiment provides a string comparator to facilitate real time fi... | 04/04/2006 |
| 7023924 | Method of pausing an MPEG coded video stream To produce a paused MPEG coded video stream from an original MPEG coded video stream, an I frame is extracted from the original stream, and a Group of Pictures for a “pause” (a pause GOP) is constructed containing the extracted I frame, some “frozen” frames,... | 04/04/2006 |
| 7016658 | Apparatus and method for transmitting/receiving data according to channel condition in a CDMA mobile communication system with antenna array Disclosed is a method for providing first and second interleaved bit streams to a modulator in order to transmit the first and second interleaved bit streams through at least two antennas in a mobile communication system. An encoder encodes a transmission data strea... | 03/21/2006 |
| 7000244 | Multi-threaded direct memory access engine for broadcast data demultiplex operations A method and system for transferring a transport stream, such as from a satellite receiver to a networked computer system, are provided. The transport stream is parsed to derive multiple elementary streams including associated program identifiers, which are used to ... | 02/14/2006 |
| 6999424 | Method for displaying data In accordance with a specific aspect of the present invention, a compressed video stream, such as an MPEG-2 video stream, is received by a transport demultiplexor, synchronized, parsed into separate packet types, and written to buffer locations external the demultip... | 02/14/2006 |
| 6980594 | Generation of MPEG slow motion playout MPEG coded video data includes groups of pictures (GOPs). Each group of pictures includes one or more I-frames and a plurality of B- or P-frames. To produce an MPEG slow-forward coded video stream, the coding type of each frame in the MPEG coded video data is identi... | 12/27/2005 |
| 6968091 | Insertion of noise for reduction in the number of bits for variable-length coding of (run, level) pairs The (run, level) pairs in an original series are inspected to determine whether or not modification of the (run, level) pairs would produce a desirable decrease in a number of bits required for variable-length encoding of the series of (run, level) pairs, despite in... | 11/22/2005 |
| 6965639 | Communication apparatus and transmission technique selection method Channel quality estimating section 104 estimates the channel quality from the reception signal quality and outputs the result to transmission method determining section 105 and control signal dividing section 108. Transmission method determining... | 11/15/2005 |
| 6965619 | Flexible multiplexer/demultiplexer and method for transport of optical line data to a wide/metro area link A method and apparatus are provided for flexible time-division multiplexing, and demultiplexing, of serial line data, from 1-n client lines, based on the SONET standard (e.g. OC-48 or OC-192) whereby a predetermined and reconfigurable number of STS-1s are allocated ... | 11/15/2005 |
| 6959116 | Largest magnitude indices selection for (run, level) encoding of a block coded picture Transform coefficients for blocks of pixels in an original picture are quantized to produce respective sets of quantization indices for the blocks of pixels. The quantization indices for at least some of the blocks are produced by using a quantization step size that... | 10/25/2005 |
| 6956875 | Technique for communicating variable bit rate data over a constant bit rate link Variable bit rate information is transmitted across a transmission link (20) at a constant bit rate by multiplexing individual variable bit rate elementary data streams (161 and 162) into a composite data stream (18)... | 10/18/2005 |
| 6940850 | Add/drop cross connection apparatus for synchronous digital hierarchy An add/drop cross connection apparatus of an SDH system, comprises an aggregate unit matching device for providing matching with the aggregate units, a higher order path connection circuit for subjecting received higher order path data to cross connection by space s... | 09/06/2005 |
| 6937770 | Adaptive bit rate control for rate reduction of MPEG coded video Original-quality MPEG coded video is processed to produce reduced-quality MPEG coded video at a reduced bit rate. The processing is based on a scale factor between average frame size of the original-quality MPEG coded video and a desired average frame size of the re... | 08/30/2005 |
| 6904095 | Digital signal processing and signal format A digital signal comprises data blocks. Each data block includes a header containing data relating to the block and a plurality of slots. Each slot has a slot header relating to the slot and a data packet. A plurality of data packets contains at least a first part a... | 06/07/2005 |
| 6904056 | Method and apparatus for improved scheduling technique An apparatus that includes a node having a scheduling cycle. The scheduling cycle is partitioned into amounts of data such that one of the partitioned amounts of data serviced per scheduling cycle corresponds to a data rate that corresponds to a highest speed grade ... | 06/07/2005 |
| 6901083 | Method and system for code combining at an outer decoder on a communication system An outer encoder and an inner encoder encode subsets of information to be transmitted, to improve protection by adding redundancy. The redundancy permits decoding of the information from less than a complete encoded block of information. The use of a combiner at an ... | 05/31/2005 |
| 6831919 | Low-speed subscriber extension type system A low-speed subscriber extension type system interfaces with a switch link through a system backboard, receives a cell transmitted from the switch link, then multiplexes/demultiplexes the received cell through a UTOPIA interface after a switch link and ATM layer pro... | 12/14/2004 |
