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Patent Searching and Data


Matches 201 - 250 out of 5,335

Document Document Title
WO/2004/001747A2
A coder is fed with precoded 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 RDS of the first code word is compensated b...  
WO2003049101A3
In the present invention asymmetric run length constraints with different minimum run lengths for first and second patterns representing binary data are introduced, like dm=0 for the first pattenr, i.e. shortest sequence of first pattern...  
WO/2004/002040A2
A bi-phase decoder (296-1) suitable for use in a broadcast router (100) and an associated method for extracting subframes of digital audio data from a stream of digital audio data. Logical circuitry (298) within the bi-phase decoder (296...  
WO2003088501A3
The invention relates to a signal comprising a runlength limited (RLL) encoded binary d,k channel bitstream 3, wherein parameter d defines a minimum number and parameter k defines a maximum number of zeroes between any two ones of said b...  
WO/2003/107538A1
The invention relates to a decoding logic for generating a n-bit binary output signal (4) on the basis of an intermediate n-bit Gray signal (6), comprising a first series connection of respective logic units of a first kind (8) for gener...  
WO2003047111A3
Methods of encoding and decoding, as well as an encoding system and a digital communications system are provided for encoding data words into code words and decoding code words into data words. The data words are encoded according to a r...  
WO2002091586A3
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...  
WO2003039008A3
A decoding system iterative decoding techniques to decode signals encoded with lattice codes and/or multilevel coset codes.  
WO/2003/098625A1
A recording medium comprising a first area in which data error-corrected and encoded by a first error correction code is recorded, and a second area in which data error-corrected and encoded by the first error correction code and data de...  
WO/2003/096343A1
A recording method, for use when m-bit data is converted to run-length-restricted n-bit (n>m) data for recording the converted data on a recording medium, wherein, when at least the preceding data is data including a special data pattern...  
WO/2003/096344A1
A recording method, for use when m-bit data is converted to run-length-restricted n-bit (n>m) data for recording the converted data on a recording medium, wherein first data is selected so that the accumulation value of the DC component ...  
WO/2003/094166A1
A CD which substantially cannot be copied. A recording method for recording main data by encoding a part of the main data by a first encoding method and the other part of the main data by a second encoding method. The data encoded by the...  
WO/2003/094165A1
A recording method includes a step of converting m-bit data into a n-bit (m < n) data symbol and a step of adding a connection bit reducing the accumulation value of the DC component per unit time selected from a plurality of connection ...  
WO2003063358A3
A method of converting m-bit information words to a runlength constrained modulated signal is described. The available code words are distributed over at least one group (G1) of a first type and at least one group (G2) of a second type. ...  
WO/2003/088501A2
The invention relates to a signal comprising a runlength limited (RLL) encoded binary d,k channel bitstream 3, wherein parameter d defines a minimum number and parameter k defines a maximum number of zeroes between any two ones of said b...  
WO/2003/088499A1
A method is disclosed for coding data communication between an interrogator and electronically coded tags. In the method the data is encoded by an active time period of sub-carrier modulation and an inactive time period of no modulation....  
WO/2003/085667A1
When recording data on a record carrier control of the DC content of the data as recorded is important in order to allow accurate reproduction of the data. The Digital Sum Value represents the DC content, The Digital Sum Value can be con...  
WO2003024014A3
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 ...  
WO/2003/079557A1
A method of encoding data includes representing the data as number(s) in a first base. The method further includes converting the number(s) into a number(s) in a second base. The resultant number in the second base can be viewed as data ...  
WO/2003/067765A1
A method and apparatus for variable length coding is described. A method comprises receiving a set of data having a set of significant values, identifying a set of positions of the set of significant values within the set of data without...  
WO/2003/063358A2
A method of converting m-bit information words to a runlength constrained modulated signal is described. The available code words are distributed over at least one group (G1) of a first type and at least one group (G2) of a second type. ...  
WO/2003/063163A1
A modulation apparatus and method, and a DSV control bit generation method capable of deciding a DSV control bit value to be inserted into a data string accurately. A 1-7PP data conversion unit (52) supplies a modulation break detection ...  
WO2003023971A3
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...  
WO/2003/061136A1
A method and apparatus for a pulse width modulated (PWM) signal (30, 130) is provided. The input is a digital signal which is a modulated signal (24, 124). In the illustrated form, the modulated input signal is either a PDM signal or a P...  
WO/2003/060912A1
A modulation apparatus and a modulation method having a simple circuit structure for realizing a modulation apparatus and capable of being easily applied to another system. According to a conversion table, a pattern converter (32) conver...  
WO2003032592A3
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...  
WO/2003/054877A2
The present invention relates to a method for coding a data stream (DS), in which the digital sum value (DSV) of the coded data stream (CS) should be close to zero and two alternative code words (CWa, CWb) can be used for the coding at l...  
WO/2003/050958A1
A modulating apparatus, a modulating method and a DSV control bit producing method that can suppress increase of circuit scale of the modulating apparatus. An input data string is supplied to a DSV control bit deciding part (31), which d...  
WO/2003/049101A2
In the present invention asymmetric run length constraints with different minimum run lengths for first and second patterns representing binary data are introduced, like dm=0 for the first pattenr, i.e. shortest sequence of first pattern...  
WO/2003/047110A1
The invention relates to a digital modulator circuit (1) that converts PCM signals (2) to PWM signals (7), the PCM signals (2) being fed at a data rate (3). The digital modulator circuit (1) comprises a digital interpolation filter (9) f...  
WO/2003/047111A2
Methods of encoding and decoding, as well as an encoding system and a digital communications system are provided for encoding data words into code words and decoding code words into data words. The data words are encoded according to a r...  
WO/2003/044964A1
An image coding apparatus (103) for coding a quantization coefficient of an image signal as data to be processed includes a run length coder (RLE2) for assigning a variable length code to the quantization coefficient by using a coding ta...  
WO/2003/045065A2
According to the present invention, an image coding apparatus provides a run-length encoding unit (RLE1) that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length c...  
WO/2003/039008A2
A decoding system iterative decoding techniques to decode signals encoded with lattice codes and/or multilevel coset codes.  
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
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/...  
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/...  
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...  
WO2002043319A8
A serial comminications architecture for communicating between hosts and data store devices. The Storage Link architecture is specially adapted to support communications between multiple hosts and storage devices via a switching network ...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  

Matches 201 - 250 out of 5,335