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Class Information
Number: 714/810
Name: Error detection/correction and fault detection/recovery > Pulse or data error handling > Error/fault detection technique > Code constraint monitored > Multilevel coding (n>2)
Description: Subject matter in which the digital data is encoded in a multilevel or multistate format where the number of levels or states is greater than 2.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7421033 |
Method for improving the performance of a coding in a radio communications system |
Sep. 2, 2008 |
| 7356087 |
Bit mapping for variable-size higher-order digital modulations |
Apr. 8, 2008 |
| 7346829 |
Semiconductor device and testing method for same |
Mar. 18, 2008 |
| 7305596 |
Nonvolatile memory and nonvolatile memory apparatus |
Dec. 4, 2007 |
| 7216267 |
Systems and methods for multistage signal detection in mimo transmissions and iterative detection of precoded OFDM |
May. 8, 2007 |
| 7080295 |
Methods and systems for detecting symbol erasures |
Jul. 18, 2006 |
| 7036071 |
Practical coding and metric calculation for the lattice interfered channel |
Apr. 25, 2006 |
| 7023936 |
Method and apparatus for decoding lattice codes and multilevel coset codes |
Apr. 4, 2006 |
| 7016658 |
Apparatus and method for transmitting/receiving data according to channel condition in a CDMA mobile communication system with antenna array |
Mar. 21, 2006 |
| 6898757 |
Decoding multi-block product code |
May. 24, 2005 |
| 6778108 |
Method and apparatus for compression of binary data |
Aug. 17, 2004 |
| 6603809 |
Apparatus, and associated method, for forming a signal for communication upon a fading channel |
Aug. 5, 2003 |
| 5748902 |
Polarity switched data bus for reduced electromagnetic interference |
May. 5, 1998 |
| 5659579 |
Multilevel coding for fractional bits |
Aug. 19, 1997 |
| 5650780 |
Decoding for tri-state read-only memory |
Jul. 22, 1997 |
| 5640605 |
Method and apparatus for synchronized transmission of data between a network adaptor and multiple transmission channels using a shared clocking frequency and multilevel data encoding |
Jun. 17, 1997 |
| 5535228 |
Device and method for achieving rotational invariance in a multi-level trellis coding system |
Jul. 9, 1996 |
| 5515400 |
Method for arranging signal points in a quadrature amplitude modulation/demodulation system |
May. 7, 1996 |
| 5515389 |
Timing signal extracting circuit suitable for CMI signals |
May. 7, 1996 |
| 5502744 |
Data coding system |
Mar. 26, 1996 |
| 5249186 |
Apparatus for detecting the start of frame in bipolar transmission systems |
Sep. 28, 1993 |
| 5206883 |
Violation control circuit in ISDN |
Apr. 27, 1993 |
| 5124979 |
Digital data transmission device for a composite transmission signal comprising a main data and a subdata signal |
Jun. 23, 1992 |
| 5122688 |
Trinary check trit generator, latch, comparator and multiplexer |
Jun. 16, 1992 |
| 5099497 |
Polarity detector for subscriber lines |
Mar. 24, 1992 |
| 4961192 |
Data error detection and correction |
Oct. 2, 1990 |
| 4910750 |
Data transmission system |
Mar. 20, 1990 |
| 4901331 |
Trellis codes with passband spectral nulls |
Feb. 13, 1990 |
| 4887083 |
Bipolar with eight-zeros substitution and bipolar with six-zeros substitution coding circuit |
Dec. 12, 1989 |
| 4831635 |
Trellis codes with spectral nulls |
May. 16, 1989 |
| 4779072 |
Channel encoder |
Oct. 18, 1988 |
| 4750179 |
Selective prevention of bipolar violation detection |
Jun. 7, 1988 |
| 4697265 |
Error monitor circuit |
Sep. 29, 1987 |
| 4661801 |
Decoder for three level coded data |
Apr. 28, 1987 |
| 4620311 |
Method of transmitting information, encoding device for use in the method, and decoding device for use in the method |
Oct. 28, 1986 |
| 4571735 |
Method of multi-level encoding including synchronizing signals |
Feb. 18, 1986 |
| 4566044 |
Direction-constrained ternary codes using peak and polarity detection |
Jan. 21, 1986 |
| 4475212 |
Frequency-independent, self-clocking encoding technique and apparatus for digital communications |
Oct. 2, 1984 |
| 4464765 |
Burst signal transmission system |
Aug. 7, 1984 |
| 4441185 |
Monitoring method and device for a PCM regenerator having a code rule violation checking device |
Apr. 3, 1984 |
| 4355402 |
Data modem false equilibrium circuit |
Oct. 19, 1982 |
| 4347619 |
Digital formatting system |
Aug. 31, 1982 |
| 4337457 |
Method for the serial transmission of binary data and devices for its implementation |
Jun. 29, 1982 |
| 4317207 |
Data transmission system |
Feb. 23, 1982 |
| 4312073 |
Spectrum converter for analog signals |
Jan. 19, 1982 |
| 4276649 |
Receiver for digital signals in line code |
Jun. 30, 1981 |
| 4271523 |
Contention interference detection in data communication receiver |
Jun. 2, 1981 |
| 4264972 |
Method and circuit for detecting errors in digital signals |
Apr. 28, 1981 |
| 4253185 |
Method of transmitting binary information using 3 signals per time slot |
Feb. 24, 1981 |
| 4244052 |
Receiver word alignment for digital transmission systems using a redundant ternary line code |
Jan. 6, 1981 |
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