Matches 101 - 150 out of 293 < 1 2 3 4 5 6 >
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6532565 Burst error and additional random bit error correction in a memory  
A system for memory word error correction that enables correction of burst errors in memory words. The system is based on an adaptation of two-error correction BCH code which yields burst error...
6519734 Single bit error correction, double burst error detection technique  
An error correction and detection technique provides a correction code for correcting single bit errors as well as detecting but not correcting two adjacent bits in error. A received word, which...
6496489 Method and apparatus for distinguishing between a digital control channel and a digital traffic channel in a radiocommunication system  
A method and system for locating control channels, particularly digital control channels, are described. By grouping the channels which are candidates for carrying supervisory messages in blocks...
6460156 Data transmission method and system  
In a data transmission method and system, user signals are transmitted wirelessly, and a maximum delay for the system has been defined. The system includes circuitry at the transmitting end for...
6457156 Error correction method  
Disclosed is method and apparatus for error code correction using product code. The method includes: (a) reading a data frame and associated check bytes from a media; (b) generating an error...
6438112 Device and method for coding information and device and method for decoding coded information  
The information coding device has: a first labeling means adapted to associate, with the information to be coded, K “initial” first degree polynomials, a coding means which performs a...
6389562 Source code shuffling to provide for robust error recovery  
Data is encoded to maximize subsequent recovery of lost or damaged compression parameters of encoded data. In one embodiment, at least one compression parameter is used to define a pseudorandom...
6389571 Apparatus and method for generating interleave erasure locations from thermal asperity erasure pointers  
Disclosed is a thermal asperity pointer processing apparatus and method for processing apparatus for generating erasure locations from a thermal asperity signal. The thermal asperity signal...
6360347 Error correction method for a memory device  
An error correction method for data bytes in a memory uses an error correcting block code such as a Hamming code to detect and correct errors, if any, in the data bytes. The error correction method...
6321357 Method and apparatus for burst error correction  
A method and apparatus for improving burst error correction. The method and apparatus involve transmitting block codes with interleaving, and predicting a burst error in the received block codes....
6314534 Generalized address generation for bit reversed random interleaving  
A novel and improved method and apparatus for address generation in an interleaver is provided. In accordance with one embodiment of the invention, an address is generated using a random address...
6311304 Method for encoding/decoding digital data by using shuffling in digital video home system  
A method for error correction coding (ECC) by using shuffling of a digital data supplied as a bit stream in a digital-video home system. Three methods are suggested for error correction...
6295596 Data reproducing apparatus  
Arrangement to temporarily store matrix-formed data with error correction codes in row and column directions in memory, and read out the data fast in both row and column directions to perform error...
6289484 Disk drive employing off-line scan to collect selection-control data for subsequently deciding whether to verify after write  
A disk drive that includes a disk defining a multiplicity of sectors operates in accord with a method comprising the steps of providing a firmware-controlled state machine which can be in any of a...
6279132 Concatenated error control method and system for a processing satellite uplink  
Information is transmitted in an uplink to a satellite by applying an outer code to an information block to form an outer coded block. The outer coded block is then inner coded when a short block...
6275965 Method and apparatus for efficient error detection and correction in long byte strings using generalized, integrated, interleaved reed-solomon codewords  
A method and means for enhancing the error detection and correction capability obtained when a plurality of data byte strings are encoded in a two-level, block-formatted linear code using code word...
6240538 Method and apparatus for errors and erasures decoding  
A method for coded transmission of data is disclosed. A first code word interleaved in a first plurality of burst transmissions is recovered for further processing. The recovered code word is...
6182263 Apparatus for generating, recording and transmitting an error product code block having an improved check code arrangement  
There is provided an apparatus for processing data for generating an error correction product code block devised so as to maintain the current level of redundancy after the error correcting ability...
6175941 Error correction apparatus and associated method utilizing parellel processing  
Apparatus, and an associated method, for performing error-correction operations to correct errors in a block of block-encoded data. Two ALUs are operable in parallel to perform finite-field...
6145111 High-performance low-complexity error-correcting codes  
A method of encoding data is described herein. According to the method, source data elements are coded using one or more product codes having a common component code. The resulting one or more...
6112324 Direct access compact disc, writing and reading method and device for same  
A system that redefines how data is distributed on a conventional writable compact disc (CD-R/E). A rearrangement of the data on the disc provided during the writing operation preserves...
6106147 Re-writeable optical card reader/writer unit using ink dots for data storage  
An information storage apparatus is disclosed for storing information on inserted cards the apparatus comprising a sensing means for sensing printed patterns on the surface stored on the card, the...
6105159 Trellis code with improved error propagation  
A digital communication apparatus (20) transmits sectors of digital values that include error correction values used to detect and correct errors within the sector. Each sector consists of a number...
6079041 Digital modulation circuit and digital demodulation circuit  
A digital modulation circuit which minimizes a DC component of an NRZI modulated code sequence while setting the T max and T W not to be varied. An m-n coding mode is determined for each data...
6067655 Burst error limiting symbol detector system  
A burst error limiting symbol detector system includes a symbol detector circuit responsive to a truncated sample signal for detecting binary symbols encoded in a truncated sample signal with...
6044483 Error propagation operating mode for error correcting code retrofit apparatus  
A method and apparatus are described for providing error correcting code (ECC) which may be incorporated into a computer system which includes one of a plurality of memory configurations and which...
6018817 Error correcting code retrofit method and apparatus for multiple memory configurations  
A method and apparatus are described for providing error correcting code (ECC) which may be incorporated into a computer system which includes one of a plurality of memory configurations and which...
6012839 Method and apparatus to protect data within a disk drive buffer  
An architecture that utilizes the cross-check code associated with the error correction code in a data communications system as a data integrity code to protect data stored in a temporary storage...
5943693 Algorithmic array mapping to decrease defect sensitivity of memory devices  
A method and apparatus for addressing a memory device are described. A first logical address is translated into a first physical address to access a first storage location at a first row and a...
5942003 Error burst detector for lowering receiver bit error rate  
A communications receiver system is presented for detecting burst errors and providing erasure information to the block decoder, thereby effectively doubling the conventional correction capability...
5936978 Shortened fire code error-trapping decoding method and apparatus  
An error-trapping decoder is provided that performs right cyclic shifts of a received shortened codeword in a decode shift register. Consequently, the error burst portion of the received codeword...
5933436 Error correction/detection circuit and semiconductor memory device using the same  
An error correction/detection circuit including a syndrome generating circuit for generating a syndrome from information data and check data input in a first cycle; and an error position/size...
5928371 Systems for programmably interleaving and de-interleaving data and method thereof  
A data interleaving system (20) provides flexibility by performing the interleaving function in a high level controller (32) and a separate low level controller (34). The high level controller (32)...
5926489 Non-equalized digital receiver using block decoding with erasure and error correction  
A communications receiver system is presented for detecting burst errors and providing erasure information to a block decoder, thereby effectively doubling the conventional correction capability of...
5920577 Digital signal processing method and apparatus  
To interpolate data produced in the course of transmission or recording/reproduction of Σ,Δ modulated 1-bit digital data an interleaver distributes input contiguous 1-bit audio data over a range...
5914944 Method of improving efficiency of radio channel usage in overlapping coverage areas  
A method is described for transmitting a signal over a wireless communications channel, the communications channel being common to primary and secondary communications systems that have at least...
5910961 Method and apparatus for trackwise burst error correction in a multitrack storage format  
A method and apparatus for trackwise burst error correction in multitrack storage has an error protective code format that is based on first and second linear block codes each with a plurality of...
5889791 System, device and method of FEC coding and interleaving for variable length burst transmission  
The present invention provides a system (100), device (400, 500) and method (600, 700) for forward error correction (FEC) coding and interleaving in a variable length burst transmission...
5881073 Convolutional decoding with the ending state decided by CRC bits placed inside multiple coding bursts  
An improved coding and decoding process is disclosed to determine the ending state of a convolutional decoding using Viterbi algorithm without the use of tail bits. The most important information...
5875200 Reed-Solomon code system employing k-bit serial techniques for encoding and burst error trapping  
Apparatus and methods are disclosed for providing an improved system for encoding and decoding of Reed-Solomon and related codes. The system employs a k-bit-serial shift register for encoding and...
5835509 Method of and apparatus for recording and reproducing data and transmitting data  
First error-processing data are generated with respect to a predetermined amount of data, and second error-processing data are generated with respect to each of a plurality of blocks produced by...
5812288 Holographic storage of digital data  
Bit error rate in holographic storage/reconstruction is reduced by 2-dimensionally dispersing symbols constituting codewords so that no two codeword-common symbols occupy a single row or column on...
5799023 Message receiver  
In a message receiving apparatus, a radio paging signal is demodulated into a baseband signal. The baseband signal is decoded into corresponding data. Address information is recovered from the...
5796755 Error minimization in interleaved error correcting codes  
Digital data which has been error correcting code encoded includes a sequence of codeblocks, each having a sequence of symbols. The symbols of said codeblocks are interleaved in a sequence of sync...
5781567 Digital coding method and apparatus for the correction of burst errors  
Error-correcting apparatus and method for detecting and correcting a burst error affecting a plurality of reproduced signals representing adjacent data words groups the signals, calculates...
5774482 Apparatus and method for processing errors associated with data transfers in a computer  
An apparatus and method for transferring data within a computer includes a first computer sub-system connected to a second computer sub-system. The first computer sub-system produces data that is...
5771246 Multiple-burst-correction system  
A multiple-solid-burst error correcting system determines the number and locations of "solid burst" errors in a high-rate Reed Solomon or BCH code by determining the greatest common divisor of the...
5771245 Process for independently protecting two dimensional codes from one or more burst errors patterns  
All error correction computations for correcting decode errors that corrupt a binary message that is encoded in a two dimensional code, such as a two dimensional self-clocking glyph code, are...
5737337 Method and apparatus for interleaving data in an asymmetric digital subscriber line (ADSL) transmitter  
In an ADSL transmitter (62), data is flamed and split between a fast path and an interleave path by multiplexer (66). Data is forward error correction encoded in FEC encoder (70). Data on the...
5734663 Abbreviated trial-and-error technique for correcting long bursts of consecutive errors using CRC bytes  
A method for correcting error bursts in data which are uncorrectable by an ECC in a communications channel in which no pointer is available or if available is not generated. The data is recorded in...
Matches 101 - 150 out of 293 < 1 2 3 4 5 6 >