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8179292 |
Data modulation apparatus, data modulation method, data modulation program, and recording medium
A data modulation apparatus includes: insertion means for inserting information bits into data at a predetermined interval; conversion means for converting the data into which the information bits...
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8171037 |
System and method for reference number expansion
Method and system are disclosed for expanding a reference number range without altering existing data storage length. Such reference numbers may include employee numbers, social security numbers,...
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8161347 |
Interleaving parity bits into user bits to guarantee run-length constraint
A method of satisfying a specified run length constraint is disclosed. A systematically error correction encoded sequence of received symbols is received, wherein the received symbols include data...
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8130124 |
Method and apparatus for improving the reliability of a serial link using scramblers
Embodiments provide for a method for eliminating pathological sequences in a serial bit stream. Parallel data words having a first bit length are received. The received data words may be analyzed...
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8125364 |
Data compression/decompression method
A compression engine starts compressing data by a preset first compression rule, compresses the following data by a second compression rule when the characteristics of the data satisfy a...
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8090574 |
Entropy encoding and decoding using direct level and run-length/level context-adaptive arithmetic coding/decoding modes
An encoder performs context-adaptive arithmetic encoding of transform coefficient data. For example, an encoder switches between coding of direct levels of quantized transform coefficient data and...
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8085172 |
Bus encoding/decoding method and bus encoder/decoder
An encoding method and an encoder for encoding data transmitted in a manner of bursts via a parallel bus and a decoding method and a decoder. The encoding method includes organizing data of the...
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8059017 |
Code sequence generation method, modulation apparatus, modulation method, modulation program, demodulation apparatus, demodulation method, demodulation program and storage medium
A modulation apparatus includes: a modulation section that modulates, in accordance with a correlation table where a data sequence with a predetermined number of bits is associated with a code...
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8054207 |
Enumerative DC-RLL constrained coding
Systems and methods are provided for encoding and decoding constrained codewords using an enumerative coding graph. The constrained codewords may contain run-length and DC level limits. The...
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8049648 |
Systems and methods for constructing high-rate constrained codes
A high-rate constrained code is provided to encode/decode channel data. A transformer translates binary channel data into an arbitrary alphabet size. The transformer selects an indicator word and...
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8044829 |
Multi-mode encoding for data compression
The present disclosure includes apparatus, systems and techniques relating to lossless data compression. In some implementations, an apparatus includes a memory module to store data. The memory...
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8044831 |
Decoding apparatus and control method thereof
The invention provides a decoding apparatus which guarantees a decoding speed of a predetermined unit. To this end, the decoding apparatus includes a shifter which detects a start bit of a codeword...
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8014453 |
Method, codebook, and base station for precoding
A method, a codebook, and a Base Station (BS) for precoding are provided. The precoding method includes: obtaining a total uplink power of a User Equipment (UE); if the total uplink power is...
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8009068 |
Filter driven DC-free code
A storage device includes a signal processor that receives an input signal that includes a direct current (DC) voltage offset. An encoder receives the input signal from the signal processor and...
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8004443 |
Information readout apparatus and information reproducing method
An information readout apparatus includes analog to digital converting means, equalizing means, interpolating means, maximum likelihood detecting means and PLL means. The analog to digital...
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8004430 |
Coding scheme for serial data communications
An encoding scheme generates an encoded nine bit code word from each input eight bit data word. The coding scheme is such that the encoded data words have advantageous properties, such as a minimum...
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8004891 |
Memory device and method of programming thereof
Example embodiments may provide a memory device and memory data programming method. The memory device according to example embodiments may encode a first data page to generate at least one first...
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8000161 |
Method and system for encoding to eliminate parasitics in crossbar array memories
A method of encoding data stored in a crossbar memory array, such as a nanowire crossbar memory array, to enable significant increases in memory size, modifies data words to have equal numbers of...
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7978099 |
17B/20B coding system
A method, apparatus and system employing a 17B/20B coder is disclosed. The 17B/20B coder to receive an incoming stream including a 17B block and a 20B block, and partition the 17B block into first...
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7965205 |
Data identification method and apparatus
Disclosed herein is a data identification method for identifying, from within a readout signal from a recording medium on or in which user data of k bits are recorded using a recording modulation...
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7920629 |
Context-adaptive VLC video transform coefficients encoding/decoding methods and apparatuses
Transform coefficients of sample blocks of a macroblock of a video picture are encoded by adaptively encoding a combination, the number of non-zero coefficients before the trailing one coefficients...
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7920076 |
Run length limiter and run length limiting method
According to one embodiment, a run length limiter includes a searcher configured to search a received digital data for a specific symbol, an operator configured to operate an exclusive OR operation...
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7908399 |
Compression of repeated patterns in full bandwidth channels over a packet network
A network device is disclosed. The network device includes a port to allow the device to communicate on a full bandwidth channel, a main processor to control reception and transmission of data and...
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7893851 |
Encoding apparatus, method, and processor
Disclosed is an apparatus in which there are provided a first storage unit for storing signals to which indexes are given in order to distinguish each of a plurality of signals that are to be...
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7889103 |
Method and apparatus for low complexity combinatorial coding of signals
To reduce the complexity of the encoding/decoding of pulse positions and/or pulse magnitudes associated with complex combinatorial computations, a method and structure for encoding and decoding of...
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7884742 |
System and method for efficient compression of digital data
A system for compressing digital data by representing a portion of it predictionally and transformationally as a block of transform coefficients, then quantizing that block selectively into a set...
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7876241 |
Data modulating method and apparatus, data demodulating method and apparatus, and code arranging method
In a data demodulating method and apparatus, and a code arranging method, a multiplexer multiplexes an input data stream divided by a predetermined length into a plurality of types of pseudo-random...
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7865802 |
Data coding for enforcing constraints on ones and zeros in a communications channel
A communications channel includes a buffer configured to store data. The data includes a plurality of symbols. A data dependent scrambler is configured to select a non-zero symbol and compare the...
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7855665 |
Enumerative DC-RLL constrained coding
Systems and methods are provided for encoding and decoding constrained codewords using an enumerative coding graph. The constrained codewords may contain run-length and DC level limits. The...
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7852238 |
Balanced disparity frame sync
A coder is fed with pre-coded data such that the absolute value of the RDS of the code words as produced by the coder is limited. This is achieved by ensuring that in a group of 2 code words the...
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7843366 |
DVD EFM modulation architecture using two passes to reduce circuit size
A method for modulating a video input signal received into a modulation circuit is disclosed. A first step of the method generally comprises (A) during a first modulation pass, generating (i) a...
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7834783 |
Converting a mask constraint into a bitset constraint
Converting a mask constraint into a bitset constraint. For example, a method of converting a mask constraint into a bitset constraint may include determining an intermediate bitset based on a...
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7830280 |
Semiconductor devices, a system including semiconductor devices and methods thereof
Semiconductor devices, a system including said semiconductor devices and methods thereof are provided. An example semiconductor device may receive data scheduled for transmission, scramble an order...
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7812744 |
Method for error handling
In a method for error handling in transmission of a datum over a communications system, at least two data words consisting of bits are generated for the datum in accordance with a predefined coding...
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7812745 |
Coding apparatus, decoding apparatus, amplitude adjustment apparatus, recorded information reader, signal processing apparatus and storage system
A general purpose of the present invention is to improve a DC-free property with a further reduced circuit scale while satisfying a run-length limit. An RLL/DC-free coding unit coding includes a...
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7808404 |
Method and apparatus for generating a seed set in a data dependent seed selector
A seed generator for a scrambler comprises a seed set identifier that identifies a seed set based on received user data symbols, which include a plurality of M-bit symbols. A seed selector selects...
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7804428 |
System and method for compressing a stream of integer-valued data
A method and system are provided to minimize the size and complexity of bitstreams associated with encoded data by using a new compression scheme. An entropy encoder receives a list of run/data...
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7804430 |
Methods and apparatus for processing variable length coded data
An apparatus for processing variable length coded data includes a coefficient buffer unit and several lookup tables. The coefficient buffer unit includes a coefficient memory and an index register...
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7804919 |
Run length limiting apparatus and run length limiting method
According to one embodiment, a run length limiting apparatus comprises an input section configured to input, a digital data string including a predetermined number of symbols which have the same...
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7791507 |
Coder and a method of coding for codes with a parity-complementary word assignment having a constraint of d=1 , r=2
A coder converts M-bit information words into N-bit code words by generating a first and a second provisional code sequence using a coding rule by which, code words are logically assigned to...
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7786905 |
Modulation coding and decoding
Methods and apparatus are provided for partitioning a stream of binary input data into two binary output streams for supply to respective modulation encoders in a modulation coding system. A 4-ary...
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7777652 |
Coding system for memory systems employing high-speed serial links
A method, apparatus and system employing a coder is disclosed. The coder to receive an incoming stream including a first code block and a second code block, and partition the first code block into...
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7773002 |
Method and apparatus for channel coding and decoding
In a channel encoder comprising a dk-encoder stage and a precoding stage, obeyance of a repeated minimum transition runlength constraint is achieved because, between the dk-encoder and the...
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7773001 |
Method and apparatus for channel coding having small running digital sum
For controlling the DC-content of a Run Length Limited RLL modulated channel bit stream organized in data blocks, control bits are periodically inserted into control blocks which are dynamically...
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7768507 |
Methods and apparatus for driving a display device
According to the present disclosure, a transmitter for transmitting control characters to a display device over an interface includes a transmitter portion configured to transmit a control...
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7750827 |
Coding device, pulse regenerating device, and communications system
It is an object of the present invention to provide coding techniques which allow for higher efficiency and easier synchronization with coded data. In order to attain the object, a coding device...
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7750828 |
Systems and methods for encoding and decoding data using selective substitution of conversion table
Systems and methods for encoding and decoding data utilize selective substitution of a conversion table for converting data having a basic data length of m bits into a variable length code (d, k;...
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7724827 |
Multi-layer run level encoding and decoding
Entropy coding and decoding techniques are described, which may be implemented separately or in combination. For example, a video encoder uses two-layer run level coding to reduce bitrate for...
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7719444 |
Modulation coding
Methods and apparatus are provided for modulation coding of input data. In a first scheme, a modulation encoder applies a modulation code to input data to produce an (L,K)-constrained encoded...
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7714749 |
Method for constructing RLL codes of arbitrary rate
The claimed embodiments provide methods, apparatuses and systems directed to run-length limited (RLL) coding of data. In one implementation, concatenatable RLL codes with run lengths of zeroes not...
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