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7590917 |
Parameter generation for interleavers
An interleaver parameter generator circuit used to calculate and generate on an as needed basis interleaver parameters for interleaving blocks of information of varying lengths in accordance with a...
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7590913 |
Method and apparatus of reporting memory bit correction
Briefly, a method, main processing unit and a computer system to report a failure in a bit of a memory line by updating first and second counters for a first time and a second time correction of...
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7590170 |
Method and apparatus for measuring jitter
A system and method for characterizing the jitter of a periodic signal. Samples of the signal are taken with a sampling device. A set of samples representing a particular value of the signal in...
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7586852 |
Devices, software and methods for measuring packet loss burstiness to determine quality of voice data transmission through a network
Devices, software, and methods measure a burstiness of packet loss episodes in transmissions of voice data through networks. At least one burstiness statistic is determined to quantify how the lost...
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7549108 |
Methods and systems for secure control of system modes and sub-modes
Systems, methods and data structures are provided for representing robust data transmitted within a control system. The data structure includes at least two data fields identifying sub-modules and...
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7522073 |
Self-adapted bus inversion
Embodiments of the invention generally provide methods, systems, and articles of manufacture for selecting a data bus inversion (DBI) mode of operation. A comparison circuit of a device may receive...
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7464241 |
Memory transaction burst operation and memory components supporting temporally multiplexed error correction coding
Methods and apparatus for use with memory systems and memory modules are included among the embodiments. In exemplary systems, error-correction coding (ECC) data is temporally multiplexed with user...
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7434147 |
Power reception optimization method, and associated apparatus, for operating upon an encoded data block
Apparatus, and an associated method, for recovering the informational content of an encoded data block. Data bursts are delivered to a receiver. A series of data bursts together include all of the...
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7433358 |
Characterization of impaired intervals in a voice over packet session using audio frame loss concealment
An embodiment may include an apparatus comprising a dejitter buffer to receive packets containing audio data, a codec coupled with the dejitter buffer, the codec to receive coded audio frames from...
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7376882 |
Adaptable channel compensation for reliable communication over fading communication links
A method for reducing fading channel signal data loss for serial data rates up to approximately 10 gigabits per second includes sequentially distributing serial data to multiple encoders....
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7343543 |
Method, system and apparatus for transmitting interleaved data between stations
A system for transmitting data between stations, such as base stations and subscriber stations in a wireless telecommunications system, employs variable set of interleaving parameters for its...
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7340663 |
Method and apparatus for embedding an additional layer of error correction into an error correcting code
A method of embedding an additional layer of error correction into an error correcting code, wherein information is encoded into code words of said code over a first Galois field and wherein a...
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7254076 |
Semiconductor memory device for improving response margin of redundancy flag signal and redundancy driving method for the same
A burst mode compatible semiconductor memory device having a redundancy memory adapted to repair a normal memory is disclosed. Response margin for a redundancy flag signal and redundancy driving...
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7231579 |
Method and apparatus for using fire decoder to correct burst errors in a real-time communications system
Error bursts are detected and corrected in a communication system using shortened cyclic codes, such as shortened Fire codes. Data is loaded into a first error syndrome register and a second error...
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7228486 |
Methods and devices for randomizing burst errors
Error bursts are randomized by an interleaver which makes use of “set leaders” to generate permutation indices. The permutation indices are used to route bits from initial positions in an input...
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7203888 |
System and method for correcting linear block code
The present invention is a correcting system for correcting a linear block code generated by coding an original data via a data coding process when a predetermined correction portion of an original...
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7165195 |
Method, system, and apparatus for bit error capture and analysis for serial interfaces
An apparatus and method to facilitate validation and/or test of serial interfaces by analyzing error event types based at least in part on a code-stamp, compare engine logic and a memory for error...
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7162680 |
Method and circuit for interlacing numeric data to reduce transmission errors
A method for interlacing digital data to reduce transmission errors includes dividing a stream of digital data into consecutive blocks of bits, and interlacing each block of bits by writing to an...
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7146545 |
Interleaving method and apparatus, de-interleaving method and apparatus, and interleaving/de-interleaving system and apparatus
An interleaving apparatus comprises a first storing unit for storing data to be transmitted and a first control unit for controlling the first storing unit so that the data to be transmitted is...
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7127660 |
Method, apparatus and program storage device for correcting a burst of errors together with a random error using shortened cyclic codes
A method, apparatus and program storage device for correcting a burst of errors together with a random error using cyclic or shortened cyclic codes is disclosed. The present invention solves the...
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7117419 |
Reliable communication between multi-processor clusters of multi-cluster computer systems
Improved techniques are provided for detecting and correcting errors and skew in inter-cluster communications within computer systems having a plurality of multi-processor clusters. The local nodes...
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7080312 |
Data transformation for explicit transmission of control information
The present invention provides a system and method for explicitly transmitting a block attribute in the data of a block. In one embodiment, a current block of data is randomized in accordance with...
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7080311 |
Convolutional coding and decoding method and system
A method of transmitting convolutionally encoded data with separate, independent and looped encoding over at least one data portion. The data is distributed over one or more cycles, and a plurality...
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7020821 |
Redundant packet telecommunication network system using minimum hamming distances to construct a final estimate of a original codeword
A method of forward error control in which a transmitter receives data from an input device and creates one or more original codewords that are transmitted onto each of two physically distinct...
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7003712 |
Apparatus and method for adaptive, multimode decoding
The present invention provides for adaptive and multimode decoding, in a data packet-based communication system, to provide improved received signal quality in the presence of burst erasures or...
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6930982 |
Devices, software and methods for measuring packet loss burstiness to determine quality of voice data transmission through a network
Devices, software, and methods measure a burstiness of packet loss episodes in transmissions of voice data through networks. At least one burstiness statistic is determined to quantify how the lost...
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6928638 |
Tool for generating a re-generative functional test
A host system for generating a software built-in self-test engine (SBE) is provided for enabling on-chip generation and application of a re-generative functional test on a complex device such as a...
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6922444 |
System and method for providing adaptive rate selection
A system and method for providing adaptive rate selection mitigates impulse-like noise and allows for interleaving and RS coding, while not excessively delaying data transmission. Generally, the...
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6919794 |
Circuit for controlling the random character of a random number generator
A circuit for controlling the random character of a bit flow, including an input shift register receiving the bit flow and having its outputs exploited in parallel, at least one element for...
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6901550 |
Two-dimensional interleaving in a modem pool environment
A method for interleaving data frames transmitted via a modem pool, each of the data frames including a plurality of codewords having a predefined level of error correction, including assigning the...
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6868519 |
Reducing scintillation effects for optical free-space transmission
A process and apparatus is described for recovering from optical transmission degradation due to scintillation effects in optical free space. A payload bit stream is encoded into Reed-Solomon...
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6859899 |
Method for data packet acquisition using split preamble
A data packet type communication system utilizes packet framing wherein preambles are split into two or more subpreambles, separated by a number of data or a priori known symbols. A receiver...
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6856625 |
Apparatus and method of interleaving data to reduce error rate
A method and apparatus for reducing the information error rate of a communication network. The apparatus comprises a selector device coupled to a Framer and to an Interleaver. The selector device...
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6854077 |
Apparatus and method for providing turbo code interleaving in a communications system
A communication system 100 employs turbo encoding having a turbo interleaver 106 that interleaves input data 101 efficiently with little use of system resources. The turbo interleaver 106 ...
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6834090 |
Low delay decoding
A method and apparatus for decoding a frame of interleaved information bits in a communications system, where the decoding of the frame of interleaved information bits may begin before all of the...
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6757861 |
Burst error correction on CD data
Method and system for incdicating that at least one C 2 codeword or C 1 codeword of a CD data block has an uncorrectable number of errors, by marking or flagging the corrupted symbols of a...
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RE38502 |
Method and apparatus for recovering TOC and user information from an optical disk and using the TOC information to access user tracks
An optical disk having a diameter less than 140 mm and, a thickness of 1.2 mm±0.1 mm, with a plurality of record tracks having data recorded thereon as embossed pits representing information and...
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6678859 |
Optical disk apparatus and data reading method
An optical disk apparatus reads data written in an optical disk in units of code blocks arranged by joining a plurality of correcting codes. The optical disk apparatus includes a reading unit for...
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6606723 |
System, computer-readable medium, and method for validating communicated packets of data and for locating erroneous packets
A method is provided that verifies whether K original packets have been correctly reconstructed, and if not, locates an erroneously marked packet so that it may be removed from the reconstruction...
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6604218 |
Data encoding apparatus and data decoding apparatus
A data encoding apparatus is provided wherein, in one aspect, bit data are encoded by using at least one kind of error-correcting code out of two kinds of error-correcting modes—random...
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6574746 |
System and method for improving multi-bit error protection in computer memory systems
A system and method for storing error correction check words in computer memory modules. Check bits stored in physically adjacent locations within a dynamic random access memory (DRAM) chip are...
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6557139 |
Encoding apparatus and encoding method for multidimensionally coding and encoding method and decoding apparatus for iterative decoding of multidimensionally coded information
The present invention provides an encoding apparatus, comprising means ( 21 ) for generating a checksum for incoming data, means ( 22 ) for constructing frames on the basis of said incoming data...
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6539514 |
Read while write method in data storage device
Data are simultaneously written to plural tracks of a magnetic tape storage device while preventing elongated tape scratches from corrupting data blocks. A byte stream of user data is arranged into...
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6539512 |
Interleaving method and circuit for high density recording medium
An interleaving method for a high density recording medium and an interleaving circuit therefor. In this circuit, an intrablock interleaver interleaves received data having a predetermined error...
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6536009 |
Technique for generating single-bit error-correcting, two-bit burst error-detecting codes
A method for generating correction codes that can correct a single error and detect two adjacent errors in an information word for a range of (n, k) values, where k denotes the length of the...
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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...
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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...
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6502217 |
Method and apparatus for randomizing sector addresses in a disk storage device
Disclosed herein is a disk drive in which servo-sector addresses are reproduced from a disk, a target data sector to be accessed is specified, and data is read from or written in the target data...
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6493842 |
Time-varying randomization for data synchronization and implicit information transmission
The present invention provides a system and method for the time-varying randomization of a signal stream to provide for a robust error recovery. A current block of data is randomized in accordance...
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6381713 |
Method for responding to transmission errors in a digital communication system according to characteristics of flawed information fields
In a digital communication system, a method is provided for recognizing and acting upon differences in information field characteristics when transmission errors are detected. Information having...
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