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Class Information
Number: 341/69
Name: Coded data generation or conversion > Digital code to digital code converters > To or from nrz (nonreturn-to-zero) codes > Return-to-zero to or from nrz (nonreturn-to-zero) codes
Description: Subject matter for converting digital signals encoded so that the signal returns to zero between successive bits to digital signals wherein the signal does not return to zero between successive bits or vice versa.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8610605 Method and system for data compression Dec. 17, 2013
8472551 Three phase and polarity encoded serial interface Jun. 25, 2013
8351489 Two-phase return-to-zero asynchronous transceiver Jan. 8, 2013
8340208 Information processing device and signal processing method Dec. 25, 2012
8064535 Three phase and polarity encoded serial interface Nov. 22, 2011
7986745 Encoder apparatus and decoder apparatus Jul. 26, 2011
7973681 High speed, low power non-return-to-zero/return-to-zero output driver Jul. 5, 2011
7852238 Balanced disparity frame sync Dec. 14, 2010
RE41517 Recovery and transmission of return-to-zero formatted data using non-return-to-zero devices Aug. 17, 2010
7710295 Inverter based return-to-zero (RZ)+non-RZ (NRZ) signaling May. 4, 2010
7612697 Rate-28/30 DC-free RLL code Nov. 3, 2009
7486209 Demodulation table, demodulating device and demodulating method, program, and recording medium Feb. 3, 2009
7479906 Multispeed communications device Jan. 20, 2009
7436331 Rate-28/30 DC-free RLL code Oct. 14, 2008
7425906 Method of code generation, and method and apparatus for code modulation Sep. 16, 2008
7317408 Digital modulation apparatus and digital modulation method Jan. 8, 2008
7265690 Simplified data recovery from high speed encoded data Sep. 4, 2007
7164371 Method and apparatus for data coding for high density recording channels exhibiting low frequency contents Jan. 16, 2007
7071847 Encoding method of recording media Jul. 4, 2006
7038599 Stochastic DC control May. 2, 2006
6975259 Continuous-time delta-sigma ADC with programmable input range Dec. 13, 2005
6968002 Method and apparatus for time aligning data modulators using frequency domain analysis of detected output Nov. 22, 2005
6853320 Modulation system Feb. 8, 2005
6842125 Unipolar electrical to CSRZ optical converter Jan. 11, 2005
6778104 Method and apparatus for performing DSV protection in an EFM/EFM+ encoding same Aug. 17, 2004
6700511 Data conversion method, method for obtaining waveform information from square wave using the same, and method for generating square wave from waveform information using the same Mar. 2, 2004
6690308 Computer program for implementing a modulation method and a demodulation method therefor Feb. 10, 2004
6680679 Method and apparatus for electrical conversion of non-return to zero encoded signal to return to zero encoded signal Jan. 20, 2004
6643040 Optical signal converter from RZ format to NRZ format Nov. 4, 2003
6630898 Low voltage, unit delay quantizer with feedforward auto-zero mechanism Oct. 7, 2003
6624766 Recovery and transmission of return-to-zero formatted data using non-return-to-zero devices Sep. 23, 2003
6611216 Fast look-up table based scheme for NRZI encoding/decoding and zero insertion/removal in serial bit streams Aug. 26, 2003
6597295 Decoding apparatus and decoding method Jul. 22, 2003
6573848 Modulation system using encoding tables and method therefor Jun. 3, 2003
6492915 Method for recording information, method for reproducing information, and information recording apparatus Dec. 10, 2002
6476748 Method and apparatus for cyclic return to zero techniques for digital to analog convertors Nov. 5, 2002
6462687 High performance delta sigma ADC using a feedback NRZ sin DAC Oct. 8, 2002
6437711 Segmentation mechanism for a block encoder and method for encoding with a block encoder Aug. 20, 2002
6404819 System and method for generating NRZ signals from RZ signals in communications networks Jun. 11, 2002
6356214 Fast look-up table based scheme for NRZI encoding/decoding and zero insertion/removal in serial bit streams Mar. 12, 2002
6346895 Apparatus and method for using nibble inversion code Feb. 12, 2002
6320900 Methods and arrangements for transmitting high speed data over reduced bandwidth communication resources Nov. 20, 2001
6300886 Four-to-six code table, modulation using same but no merging bit, their application to optical disc recording or playing systems Oct. 9, 2001
6288657 Encoding apparatus and method, decoding apparatus and method, and distribution media Sep. 11, 2001
6263465 Error detection and correction in systems receiving NRZ signals from transmission of RZ signals Jul. 17, 2001
6246348 Device for converting multiple signal types to NRZ format with automatic self-test Jun. 12, 2001
6241778 Methods and apparatus for implementing run-length limited and maximum transition run codes Jun. 5, 2001
6121902 Optical disc recording apparatus, optical disc, and optical disc reproducing apparatus Sep. 19, 2000
5991346 Method for determining the best time to sample an information signal Nov. 23, 1999
5946355 Serial-digital receiver Aug. 31, 1999

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