Matches 51 - 100 out of 245 < 1 2 3 4 5 >
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6728923 Error correction encoding a data stream of information  
An apparatus and method for error correction encoding a datastream of information into blocks of error correction encoded information. An input terminal receives the datastream. An error correction...
6718512 Dynamic parity inversion for I/O interconnects  
A method of detecting synchronization errors during the transfer of data in which a transmitting agent sends to the receiving agent either: (a) data parity encoded with a data parity function when...
6708307 Device and method for detecting synchronization patterns in CD-ROM media  
Disclosed is a peripheral device for reliably detecting synchronization patterns in CD-ROM media. The peripheral device has an internal circuitry for controlling and processing data that is read...
6700903 Upstream scrambler seeding system and method in a passive optical network  
A system and method for enabling an optical network unit (ONU) in a passive optical network to scramble data and send the scrambled data upstream to an optical line termination unit (OLT). In...
6684366 Multi-rate codec with puncture control  
A method and apparatus are provided that provide bandwidth efficient variable bit rate communication of digital signals in a noisy channel. According to one aspect of the present invention, the...
6681384 Multi-threaded break-point  
A way to synchronize threads in a multi-threaded program. In the preferred embodiment, a debugger provides a break-point that does not interrupt the user when the first thread reaches it; instead,...
6587988 Dynamic parity inversion for I/O interconnects  
A method of detecting synchronization errors during the transfer of data in which a transmitting agent sends to the receiving agent either: (a) data parity encoded with a data parity function when...
6581114 Method and system for synchronizing serial data  
A first embodiment of the present invention includes a decoder 320 and a detection circuit 330 . The decoder 320 receives data at a packet rate. Each packet includes more than one word so that...
6574777 Dynamic parity inversion for I/O interconnects  
A method of detecting synchronization errors during the transfer of data in which a transmitting agent sends to the receiving agent either: (a) data parity encoded with a data parity function when...
6560745 Method of identifying boundary of markerless codeword  
The present invention is a method of determining codeword boundary without marker bits by receiving transmission bits; determining a dual code of a code used to generate the transmission bits;...
6536011 Enabling accurate demodulation of a DVD bit stream using devices including a SYNC window generator controlled by a read channel bit counter  
A method of processing a DVD bitstream includes the steps of reading the DVD bitstream, the bitstream including a sync frame. A sync window is created, the sync window being open at least during...
6490704 Method for correcting synchronization error and radio system  
The invention relates to a digital radio system and to a method for correcting a synchronization error in a digital radio system comprising at least one base station ( 100 ) communicating with...
6486967 Recovery of bit-rotated frames during facsimile transmissions in a global system for mobile communications (GSM) network  
A system and method for handling facsimile transmissions in a digital communications network, such as a GSM network. In general, the process includes first synchronizing incoming binary-coded...
6434146 USE OF SEQUENCING INFORMATION IN A LOCAL HEADER THAT ALLOWS PROPER SYNCHRONIZATION OF PACKETS TO SUBSIDIARY INTERFACES WITHIN THE POST-PROCESSING ENVIRONMENT OF AN MPEG-2 PACKET DEMULTIPLEXING ARCHITECTURE  
A system and method for demultiplexing and distributing transport packets, such as MPEG-2 transport packets, by generating and associating a locally-generated header with each of the transport...
6421646 Probabilistic method and system for verifying synchronization words  
A data file ( 22 ) having a plurality of frames is received, with each frame having a syncword. A data string ( 52 ) including a plurality of potential syncwords ( 54 ) is identified in the data...
6415412 Signal used in the transmission of data in a communication system  
A signal used in the transmission of data in a communication system (for example in an ATM network), comprised of immediately successive cells. For the purpose of cell synchronization, filler cells...
6308298 Method of reacquiring clock synchronization on a non-tracking helical scan tape device  
A method and apparatus for reacquiring synchronization of a clock synchronization signal with a data signal in a non-tracking storage device is presented. A packet error detector detects errors in...
6298398 Method to provide checking on data transferred through fibre channel adapter cards  
The present invention provides checking on information units sent and received as packets over fiber channel networks by providing check bits on the header information and separate check bits on...
6289306 Data processing of a bitstream signal  
A data processing apparatus includes an input terminal for receiving an audio signal, a 1-bit A/D converter for A/D converting the audio signal so as to obtain a bitstream signal, and a prediction...
6263469 Methods and systems for accessing data from a DVD using a sync detector including a 26 state finite state machine  
An apparatus and a method to access data from a digital recording medium configured to store data in sectors delimited by a predetermined sequence of sync patterns. The apparatus includes a sync...
6260170 Method for controlling memory and digital recording/reproducing device using the same  
A method and apparatus for controlling a memory to record data received at random rate into a fixed rate and to reproduce the data recorded in a fixed rate includes a shuffle memory with a...
6249895 Coding apparatus and decoding apparatus for transmission/ storage of information  
An output coding apparatus includes a coder for coding an inputted bitstream to an error correction and/or detection code composed of information bits and check bits; and a bitstream assembling...
6195783 Process and apparatus for synchronizing the block counter in an RDS radio data receiver  
A process and apparatus for synchronizing the block counter of an RDS radio data receiver is described. According to the process, the bits stored in a 26-bit shift register, are cycled at least n...
6185717 Data reception unit  
A data reception unit having improved robustness against synchronization code errors. In data transmission, the synchronization code is always located in the headers of coded data contained in the...
6173430 Device and method for detecting synchronization patterns in CD-ROM media  
Disclosed is a peripheral device for reliably detecting synchronization patterns in CD-ROM media. The peripheral device has an internal circuitry for controlling and processing data that is read...
6161203 Communication system utilizing Reed-Solomon code to achieve auto frame synchronization acquistion  
A digital subscriber line communication system does not require the use of a plain old telephone service (POTS) splitter in the resident's home. Digital signal processing is utilized to adapt to...
6160822 ATM cell synchronization circuit  
An ATM cell synchronization circuit can be realized by a circuit construction operable at low speed. Cell strings developed into eight parallel strings by a serial to parallel development circuit...
6128358 Bit shift detecting circuit and synchronizing signal detecting circuit  
A bit shift value of a synchronizing signal is detected. That is, after respective hamming distances between data from the first part of the synchronization signal and the respective pre-detects...
6124696 Programmable stepper motor controller and method therefor  
A system and method for controlling a stepper motor wherein the amount of memory space needed to store a phase table is minimized. The stepper motor controller comprises a memory sized to store...
6122764 Disc recording medium for reproduction data from disc recording medium  
A disc recording medium is provided for enhancing a capability of correcting a burst error caused by small dust left on the surface of a disc substrate. The data of two-dimensionally arrayed ECC...
6111924 Error-correction-code synchronization in a videoconferencing gateway  
A de-framer (72) in a communications gateway (22) translates videoconferencing information from a circuit-switched format to a packet-switched format. A demultiplexor (78) extracts a bitstream...
6088829 Synchronous data transfer system  
A synchronous data transfer system includes an oscillation circuit and a plurality of nodes connected to the oscillation circuit and each including at least an internal logic circuit. Each of the...
6076184 Information recording method, reproducing method, and reproducing apparatus  
In a system recording compressed video and audio signals or computer user data on a disk in the sector unit, to reproduce the data in a simple fashion at a high speed, data to be recorded on the...
6009549 Disk storage system employing error detection and correction of channel coded data, interpolated timing recovery, and retroactive/split-segment symbol synchronization  
A disk storage system is disclosed wherein user data received from a host system is first encoded according to a first channel code having a high code rate, and then encoded according to an ECC...
5983387 Information recording method, reproducing method, and reproducing apparatus  
In a system recording compressed video and audio signals or computer user data on a disk in the sector unit, to reproduce the data in a simple fashion at a high speed, data to be recorded on the...
5974581 Information recording method, reproducing method, and reproducing apparatus  
In a system recording compressed video and audio signals or computer user data on a disk in the sector unit, to reproduce the data in a simple fashion at a high speed, data to be recorded on the...
5963602 Synchronism detection and demodulating circuit  
A synchronism detection and demodulating circuit includes: a circuit for frequency dividing the regenerative clock in an irregular manner, a circuit for reading out the input data in a special...
5956102 Methods and apparatus for the efficient implementation of signal synchronization and cyclic redundancy checks in communication systems  
Methods and apparatus for performing packet synchronization recovery and error detection operation on packets including a CRC check byte, e.g., MCNS packets, are described. The present invention...
5954839 Error protection method for multimedia data  
An error protection method for multimedia improves data recovery and channel throughput in channels which cause a random error and a burst error by using a rate compatible punctured convolutional...
5943492 Apparatus and method for generating external interface signals in a microprocessor  
An apparatus for generating control signals of a microprocessor includes a memory, for example, a pattern holding register storing an arbitrary bit pattern. The holding register can be loaded by...
5901160 Decoder with an error control adaptively applied on the basis of the estimated position of a slot in a frame  
A decoder which is adapted to receive a frame of coded data consisting of multiple slots including intra-frame position information indicating positions of the slots in the frame to decode the...
5889794 Two-level error correction encoder  
A two-level error correction encoder encodes m-bit data symbols in a first level of encoding in accordance with a distance d ECC over GF(2 m +i) to produce (m+i)-bit ECC redundancy symbols and,...
5862153 Coding apparatus and decoding apparatus for transmission/storage of information  
An output coding apparatus includes a coder for coding an inputted bitstream to an error correction and/or detection code composed of information bits and check bits; and a bitstream assembling...
5844920 Thermal asperity compensation using multiple sync marks for retroactive and split segment data synchronization in a magnetic disk storage system  
A magnetic disk storage system is disclosed wherein byte synchronization to sector data is achieved even when noise in the read channel, due for instance to a thermal asperity (TA), corrupts the...
5835165 Reduction of false locking code words in concatenated decoders  
A concatenated three layer Viterbi, Reed-Solomon/Deinterleaver and Descrambler forward error correction decoder may be utilized in digital video and audio systems, and for direct broadcast...
5832031 Method and apparatus for performing cyclic redundancy check synchronization  
A method and apparatus for synchronizing and error checking received bitstreams of encoded information is provided. The apparatus includes a single polynomial division shift register. The method...
5831866 Method and apparatus for removing timing hazards in a circuit design  
A computer system is programmed with logic for automatically removing timing hazards from a circuit design. More specifically, the computer system is programmed with logic for automatically...
5828676 Method and apparatus for robust communication based upon angular modulation  
A robust encoding and decoding system of the present invention for communicating binary information using angular modulation system is disclosed. Binary information to be transmitted is data words...
5822339 Data decoder and method to correct inversions or phase ambiguity for M-ary transmitted data  
The invention is a way to detect and correct data inversions or other phase ambiguities in a modem's data, without incurring a significant penalty in error rate performance, throughput, or...
5815514 Variable rate bit inserter for digital data storage  
A variable rate bit inserter is provided which efficiently encodes data prior to writing to a magnetic storage media. In a preferred embodiment, the bit insertion technique monitors the phase and...
Matches 51 - 100 out of 245 < 1 2 3 4 5 >