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Class Information
Number: 341/68
Name: Coded data generation or conversion > Digital code to digital code converters > To or from nrz (nonreturn-to-zero) codes
Description: Subject matter for converting digital signals to or from a digital signal waveform wherein the signal levels do not return to zero between successive bit periods.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7612697 |
Rate-28/30 DC-free RLL code |
Nov. 3, 2009 |
| 7492287 |
Two-bit tri-level forced transition encoding |
Feb. 17, 2009 |
| 7489258 |
Device and method for embedding a secondary signal in a primary data bit stream on an optical disc |
Feb. 10, 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 |
| 7362839 |
Techniques to adjust vertical offset |
Apr. 22, 2008 |
| 7358871 |
Method and system for decoding data |
Apr. 15, 2008 |
| 7317408 |
Digital modulation apparatus and digital modulation method |
Jan. 8, 2008 |
| 7301484 |
Data decoder |
Nov. 27, 2007 |
| 7286064 |
Two-dimensional modulation encoding for high density optical storage |
Oct. 23, 2007 |
| 7265690 |
Simplified data recovery from high speed encoded data |
Sep. 4, 2007 |
| 7256718 |
Modulation apparatus and method |
Aug. 14, 2007 |
| 7245238 |
Method and apparatus for data encoding |
Jul. 17, 2007 |
| 7221294 |
Multispeed communications device |
May. 22, 2007 |
| 7218262 |
Modulation system |
May. 15, 2007 |
| 7167518 |
Bandwidth-efficient modulation in communication systems |
Jan. 23, 2007 |
| 7164371 |
Method and apparatus for data coding for high density recording channels exhibiting low frequency contents |
Jan. 16, 2007 |
| 7135996 |
Multispeed communications device |
Nov. 14, 2006 |
| 7132967 |
Modulation system |
Nov. 7, 2006 |
| 7129863 |
Interval modulation coding |
Oct. 31, 2006 |
| 7123173 |
Method and system for a feed-forward encoder |
Oct. 17, 2006 |
| 7116250 |
Method and apparatus for multi-dimensionally encoding and decoding |
Oct. 3, 2006 |
| 7107499 |
System and method for adjusting a non-return to zero data stream input threshold |
Sep. 12, 2006 |
| 7071847 |
Encoding method of recording media |
Jul. 4, 2006 |
| 7054373 |
Method and apparatus for modulating and demodulating data into a variable-length code and providing a sync signal to the train of codes |
May. 30, 2006 |
| 7050493 |
Bandwidth-efficient modulation in communication systems |
May. 23, 2006 |
| 7050506 |
Method and apparatus for modulating and demodulating data into a variable-length code and providing a sync signal to the train of codes |
May. 23, 2006 |
| 7046736 |
Method and apparatus for modulating and demodulating data into a variable-length code and providing a sync signal to the train of codes |
May. 16, 2006 |
| 7046735 |
Method and apparatus for modulating and demodulating data into a variable-length code and providing a sync signal to the train of codes |
May. 16, 2006 |
| 7038599 |
Stochastic DC control |
May. 2, 2006 |
| 7009532 |
DVD recording method and rewritable DVD apparatus |
Mar. 7, 2006 |
| 7006020 |
Encoding and decoding method of a record medium |
Feb. 28, 2006 |
| 6995698 |
Method and apparatus of converting a series of data words into modulated signals |
Feb. 7, 2006 |
| 6947493 |
Dual phase pulse modulation decoder circuit |
Sep. 20, 2005 |
| 6933866 |
Variable data rate receiver |
Aug. 23, 2005 |
| 6897792 |
Reducing number of consecutive ones in data-dependent scrambler |
May. 24, 2005 |
| 6861965 |
Code modulating method and code modulating apparatus, demodulating method and demodulating apparatus, and information recording medium |
Mar. 1, 2005 |
| 6853319 |
Method of determining a merging bit in an optical storage device |
Feb. 8, 2005 |
| 6853320 |
Modulation system |
Feb. 8, 2005 |
| 6847312 |
Symmetric line coding |
Jan. 25, 2005 |
| 6833798 |
Method for coding a sequence of data bytes via an air interface |
Dec. 21, 2004 |
| 6737995 |
Clock and data recovery with a feedback loop to adjust the slice level of an input sampling circuit |
May. 18, 2004 |
| 6737996 |
Information recording and reproducing method |
May. 18, 2004 |
| 6731873 |
Bidirectional optical communications using on-off keying to generate a hybrid form of Manchester serial encoding for one of either upstream or downstream transmission |
May. 4, 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 |
| 6696994 |
Method and apparatus of converting a series of data words into modulated signals |
Feb. 24, 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 |
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