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WO/2003/038822A1 |
A method for additionally recording data on a recording medium where data created by modulating M−bit data into N−bit (M
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WO/2003/034596A1 |
The present invention relates to a method and system for multi-dimensionally coding and/or decoding an information to/from a lattice structure representing bit positions of said coded information in at least two dimensions. Encoding and/...
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WO/2003/034595A1 |
The present invention relates to a method and system for multi-dimensionally coding and/or decoding an information to/from a lattice structure representing bit positions of said coded information in at least two dimensions. Encoding and/...
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WO/2003/032592A2 |
The invention relates to a circuit for evaluating a digitally coded signal. Said circuit comprises a counter (4) which assigns a counter value to a level duration by means of a control logic (2), said counter value being compared with pr...
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WO/2003/028326A1 |
A wireless communication system comprises a guest (2) with a transmitter (3, 23) for transmitting infrared signals and a host (2) with a host receiver (4, 24) for receiving an infrared signal (5, 25), both the guest and the host having a...
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WO/2003/026243A1 |
A 64-ary QAM (Quadrature Amplitude Modulation) demodulation apparatus and method for receiving an input signal Rk(Xk,Yk) comprised of a kth quadrature-phase signal Yk and a kth in-phase signal Xk, and generating soft decision values L(sk...
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WO/2003/024014A2 |
The invention relates to a method for adapting the bit rate in a communication system wherein the bits of the bit stream are punctuated or repeated in such a manner that for a certain respective number (N) of consecutive bits (x) of the ...
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WO/2003/023971A2 |
A method for converting a succession of data words into an output bit stream comprising a succession of code words uses a table of code words and associated next state values. For each data word the table provides a code word and associa...
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WO/2003/021791A2 |
The invention relates to a modulation code system, including an encoder and a decoder and two corresponding modulation code methods. More specifically, the encoder (100) serves for transforming an original signal s into an encoded signal...
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WO/2003/010765A2 |
The invention relates to a method and an apparatus for encoding data bits of a data bitstream into channel bits of a channel bitstream to be recorded on a rewritable optical medium, wherein the digital sum value (DSV) of said channel bit...
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WO/2003/007300A1 |
A method of encoding digital information in order to suppress dc includes the steps of receiving a sequence (605) of m message bits of a message word (701), and mapping the sequence of m message bits of the message word to a codeword (70...
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WO/2003/005589A1 |
The present invention relates to method and apparatus of converting a series of data words into modulated signals. This method generates for each data word a number of intermediate sequences by combining mutually different digital words ...
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WO/2002/103696A2 |
Domain bloom, also known as asymmetry, is a systematic imperfection caused by the writing process in optical discs. During disc read-out it causes signal transitions to shift with respect to their nominal positions. State-of-the-art equa...
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WO/2002/101743A1 |
A recording method for modulating data and recording the modulated data on a recording medium. When recording data on a recording medium, according to the type of data recorded on the recording medium, switching is performed between sele...
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WO/2002/098092A1 |
The invention consists in coding a binary word according to a plurality of coding tables, whereby the coding table is chosen for each binary word to be coded, according to at least one item of additional information to be coded. In one e...
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WO/2002/095748A2 |
The present invention relates to a record carrier for storing a digital work (DW). The record carrier (10) comprises access information (KLT) for gaining access to the digital work and a secondary channel (HC) in which secondary channel ...
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WO/2002/091586A2 |
During decoding and encoding, the starting disparity of a current block is computed by using a disparity at some previous reference point and disparity characteristics of bytes from the reference point to a current block boundary. The ch...
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WO/2002/080373A1 |
The invention relates to methods and devices for converting a stream of data bits of a binary information signal (2) into a stream of data bits of a constrained binary channel signal (3) using multiple channel codes C¿st?, C¿pc?. Apart...
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WO/2002/063774A1 |
This invention relates to a digital modulation method and apparatus used for recording an audio or video signal, computer data, and etc on a recording medium such as an optical or magneto-optical disc. Data words of m bits are translated...
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WO/2002/050821A1 |
A recording method for an optical disc which records data for identifying an optical disc on the optical disc wherein the identifying data is recorded by irradiating an optical disc having a substrate made of a synthetic resin with an un...
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WO/2002/047340A1 |
A method of, and apparatus for, encoding a serial stream of digital data blocks (characters) comprises partitioning the stream into the data blocks; translating the blocks into corresponding encoded equivalents; and assembling the encode...
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WO/2002/043251A1 |
The invention concerns a data transmission device comprising a turbo coder (22) comprising an interleaver operating on two interleaving blocks and means (26) for producing symbols from said codes (D, Y1, Y2) supplied by the turbo coder T...
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WO/2002/041500A1 |
In the coding device and method, m-bit information words are converted into n-bit code words such that the coding rate m/n is greater than 2/3. The n-bit code words are divided into a first type and a second type, and into coding states ...
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WO/2002/039447A1 |
A record carrier, and method for manufacturing such record carrier, which can be copied with the aid of a copying apparatus, whilst the copied record carrier is unreadable. During copying with the aid of the copying apparatus, merge bits...
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WO/2002/039589A1 |
The invention concerns a device for receiving digital signals in accordance with two different standards passing through the same medium (2, 3, 4) comprising: means for converting (1) logical levels, receiving the digital signals and con...
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WO/2002/037785A1 |
A data transmission method for suppressing communication errors by a simple microcomputer processing. A pulse signal having an H level and an L level is used. The pulse duration of one of the levels is a first basic signal length T¿1? a...
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WO/2002/029810A1 |
An address decoder for decoding a wobble signal to reproduce an address signal comprising a PLL circuit (103) for generating a PLL clock signal PCLK synchronous with an external clock signal CLK, a frequency divider (104) for dividing th...
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WO/2002/029811A1 |
A record medium where data having a high error correctability is recorded at high effective recording density, its recorder, and its reproducing apparatus are disclosed. The recorder comprises an encoding unit that creates coded data by ...
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WO/2002/027722A1 |
Method and apparatus for recording data on a magnetic recording medium and writing data to a computer bus in which the data is divided into words of a predetermined length, a signal is generated for each data word, having an amplitude wh...
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WO/2002/023736A1 |
A circuit (12) for recovering a current sense signal which is offset by a common mode displacement, such is the case when the signal is the voltage across a current sense resistor located on the high side bus or between the switches of a...
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WO/2002/017320A1 |
The invention relates to a method of storing a number of data bits of a secondary channel (30) in the frame of a main channel (20) and to a method of decoding a stream of bits relating to a secondary channel (30) embedded in the frames o...
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WO/2002/015185A1 |
The invention relates to a method and device for adding or extracting a secondary information signal to/from a runlength-limited code sequence. A polarity of a runlength at a first predetermined position of the runlength-limited code seq...
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WO/2002/015183A2 |
The invention relates to a method for generating a primary binary signal having a predetermined spectral shape in a predetermined frequency range, in particular having a notch in the power spectrum in a predetermined frequency range. In ...
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WO/2001/099288A1 |
The present invention relates to method and apparatus of converting a series of data words into modulated signals. This method divides a data word, which a sync signal is to be added in front or rear of when it is written in a recording ...
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WO/2001/099097A1 |
Encoding (2) a signal (A) is provided, wherein frequency and amplitude information of at least one sinusoidal component in the signal (A) is determined (20), and sinusoidal parameters (f,a) representing the frequency and amplitude inform...
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WO/2001/099287A1 |
The present invention relates to method and apparatus for converting a series of data words into modulated signals. This method generates for each data word a number of intermediate sequences by combining mutually different digital words...
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WO/2001/095495A1 |
In a device for encoding a stream of databits of a binary source signal into a stream of databits of a binary channel signal the bitstream of the source signal is divided into n-bit source words. The device comprises converting means ada...
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WO/2001/091305A1 |
A semiconductor integrated circuit for use in encoding and decoding in which circuit scale and power consumption are reduced and cost is reduced by reducing the chip area. The semiconductor integrated circuit for detecting the relation a...
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WO/2001/086898A2 |
A method and system for decoding 8B/10B data is provided. In one embodiment, the method includes the steps of determining the presence of one of a plurality of predetermined data sequences within a first portion of a data word, translati...
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WO/2001/086817A1 |
The invention relates to a method of converting a stream of databits of a binary information signal into a stream of databits of a constrained binary channel signal, this signal being constructed by repetitively or alternate using a chan...
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WO/2001/082540A1 |
A device is disclosed for encoding a stream of data bits of a binary source signal (S) into a stream of data bits of a binary channel signal (C1), wherein the bit stream of the source signal is divided into n-bit source words (x1, x2), w...
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WO/2001/080433A1 |
At a transmission node, at least part of control information is divided into M (M: a natural number) control information blocks of an N-bit length (N: a natural number of 1 to 7), and each control information block i (i = 1 to M) is give...
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WO/2001/077782A2 |
A method includes a data encoding scheme that has a run length limit of (1,6) and a 25% duty cycle. With error correction, said method achieves an effective run length limit of (2,9). The method can be used in conjunction with a packetiz...
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WO/2001/075880A1 |
The invention relates to a method for encoding a stream of bits of a signal relating to a binary source into a stream of bits of a signal relating to a binary channel, the binary source comprising a main source and a secondary source, th...
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WO/2001/071923A1 |
The present invention relates to coding information, and more particularly, to a method and apparatus for coding information having improved information density. The present invention further relates to producing a modulated signal from ...
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WO/2001/063769A2 |
A data coding system for coding data represented by a number of symbols is described. The system includes representing each symbol with a unique digital waveform (4, 5). All the unique digital waveforms (4, 5) have a duty cycle greater t...
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WO/2001/052213A1 |
An apparatus is described for reducing coherent signal interference between at least two bit streams framed with a common clock signal. The apparatus includes an internal clock signal generated from the common clock signal and a Manchest...
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WO/2001/037279A1 |
The invention relates to a device for reproducing a digital information signal from a channel signal. The digital information signal is runlength limited with one or more constraints. The device comprises receiving means for receiving th...
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WO/2001/003304A1 |
A data storage channel encoder (150) includes a data word input (152), a code word output (153) and an encoder. The encoder (150) is coupled between the data word input (152) and the code word output (153) and is adapted to encode succes...
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WO/2000/070768A1 |
An apparatus for decoding a serial datastream of channel words into a datastream of information words is provided. The apparatus comprises an input terminal (10) for receiving the serial data stream of channel words, a serial-parallel co...
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