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Class Information
Number: 341/75
Name: Coded data generation or conversion > Digital code to digital code converters > To or from nonlinear codes
Description: Subject matter for converting digital signals to or from other digital signals such that the information represented by the latter digital signals are a nonlinear function of the information represented by the former digital signals.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8692695 Methods for encoding and decoding data Apr. 8, 2014
8610605 Method and system for data compression Dec. 17, 2013
8533101 Systems and methods for compression of trade-related records Sep. 10, 2013
8502707 Data compression systems and methods Aug. 6, 2013
7777651 System and method for data feed acceleration and encryption Aug. 17, 2010
7714747 Data compression systems and methods May. 11, 2010
7432833 Data compression system and methods Oct. 7, 2008
6501404 System and method for encoding an input data stream by utilizing a predictive, look-ahead feature Dec. 31, 2002
6407680 Distributed on-demand media transcoding system and method Jun. 18, 2002
6377193 System for converting between non-logarithmic values and logarithmic values Apr. 23, 2002
6065031 Log converter utilizing offset and method of use thereof May. 16, 2000
5968137 Method of testing a protocol converter with the help of an identical converter and deactivating selection means for preventing asymmetry conversion Oct. 19, 1999
5822721 Method and apparatus for fractal-excited linear predictive coding of digital signals Oct. 13, 1998
5726924 Exponentiation circuit utilizing shift means and method of using same Mar. 10, 1998
5703801 Logarithm/inverse-logarithm converter utilizing second-order term and method of using same Dec. 30, 1997
5642305 Logarithm/inverse-logarithm converter and method of using same Jun. 24, 1997
5629884 Log converter utilizing offset and method of use thereof May. 13, 1997
5604691 Logarithm/inverse-logarithm converter utilizing a truncated Taylor series and method of use thereof Feb. 18, 1997
5600581 Logarithm/inverse-logarithm converter utilizing linear interpolation and method of using same Feb. 4, 1997
5553012 Exponentiation circuit utilizing shift means and method of using same Sep. 3, 1996
5535174 Random access memory with apparatus for reducing power consumption Jul. 9, 1996
5524089 Logarithm computing circuit for fixed point numbers Jun. 4, 1996
5486826 Method and apparatus for iterative compression of digital data Jan. 23, 1996
5365465 Floating point to logarithm converter Nov. 15, 1994
5343500 Non-linear encoder and decoder for information transmission through non-linear channels Aug. 30, 1994
5268684 Apparatus for a neural network one-out-of-N encoder/decoder Dec. 7, 1993
5212481 Circuit for code converting PCM codes May. 18, 1993
5047768 Data companding method and data compressor/expander Sep. 10, 1991
4897652 Method of coding numbers in binary form Jan. 30, 1990
4896353 Apparatus for fast decoding of a non-linear code Jan. 23, 1990
4855741 Logarithmic digital level display device Aug. 8, 1989
4845497 Conference circuit for a digital communication system Jul. 4, 1989
4791403 Log encoder/decorder system Dec. 13, 1988
4626825 Logarithmic conversion apparatus Dec. 2, 1986
4614935 Log and antilog functions for video baseband processing Sep. 30, 1986
4608554 Asynchronous parallel fixed point converter Aug. 26, 1986
4603323 Method for extending the exponent range of an IBM 370-type floating point processor Jul. 29, 1986
4595907 PCM data translating apparatus Jun. 17, 1986
4583180 Floating point/logarithmic conversion system Apr. 15, 1986
4544919 Method and means of determining coefficients for linear predictive coding Oct. 1, 1985
4518950 Digital code converter May. 21, 1985
4511882 Function generator Apr. 16, 1985
4500869 Method for conversion of linearly encoded into non-linearly encoded digital signals Feb. 19, 1985
4488295 Alarm immune program signal Dec. 11, 1984
4467318 Process for converting linear coded PCM words into non-linear coded PCM words and vice versa Aug. 21, 1984
4467315 Digital compandor having nonlinear companding characteristics Aug. 21, 1984
4454498 Adjustable attenuation member for a digital telecommunications system Jun. 12, 1984
4393367 Digital compandor having nonlinear companding characteristics Jul. 12, 1983
4355304 Digital compandor Oct. 19, 1982
4349913 Method and apparatus for reducing the demand on the number of transferred bits when transferring PCM information Sep. 14, 1982

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