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Class Information
Number: 375/287
Name: Pulse or digital communications > Multilevel > With threshold level
Description: Subject matter wherein the received or transmitted signal is compared with a reference voltage to determine the discrete amplitude level.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8705593 Evaluation device and method for providing a transceiver system with performance information thereof Apr. 22, 2014
8615033 Data transmission rate adaptation in a wireless communication system Dec. 24, 2013
8576939 Method and system for slicing a communication signal Nov. 5, 2013
8488720 System and method for adaptive polar quantization Jul. 16, 2013
8446977 Method for transmitting discrete electric signals May. 21, 2013
8446930 Impulse radio communication device May. 21, 2013
8391345 Power spectral distribution measurement to facilitate system acquisition Mar. 5, 2013
8380085 High-speed multi-level electronic signal generation for optical communications Feb. 19, 2013
8331851 Very small aperture terminal (VSAT) site diagnostics Dec. 11, 2012
8320494 Method and apparatus for generating reference voltage to adjust for attenuation Nov. 27, 2012
8307227 Data communication system and method Nov. 6, 2012
8218672 Differential data transceiver and method with reversed-wire immunity Jul. 10, 2012
8180002 Digital signal processing device, digital signal processing method, and digital signal processing program May. 15, 2012
8179951 Transmission output control apparatus, multicarrier transmission system, transmission output control method and transmission output control program in computer-readable storage medium May. 15, 2012
8155236 Methods and apparatus for clock and data recovery using transmission lines Apr. 10, 2012
8155191 Method and apparatus for fast mode decision of B-frames in a video encoder Apr. 10, 2012
8144249 Multi-slicing horizontal synchronization signal generating apparatus and method Mar. 27, 2012
8144803 Inversion of channel distortion by adaptive wavelet lifting Mar. 27, 2012
8120387 Receiving circuit, electronic apparatus and method for controlling receiving circuit Feb. 21, 2012
8081705 Digital video physical layer using a multi-level data code Dec. 20, 2011
7982632 Sensor system and method of communicating data between a downhole device on a remote location Jul. 19, 2011
7970287 Multi-level optical data communication circuit Jun. 28, 2011
7903717 Receiver, receiving method, program and information recording medium Mar. 8, 2011
7852965 Windowed level detector for partial response channels Dec. 14, 2010
7830280 Semiconductor devices, a system including semiconductor devices and methods thereof Nov. 9, 2010
7764740 Fast block mode determining method for motion estimation, and apparatus thereof Jul. 27, 2010
7760825 Device and method for suppressing pulse interferences in a signal Jul. 20, 2010
7734963 Non-causal channel equalization system Jun. 8, 2010
7729453 System and method for fast dynamic adjustment of slicing level for burst mode optical receivers Jun. 1, 2010
7715487 Wireless apparatus employing multi-level QAM and method for estimating threshold value May. 11, 2010
7706460 QAM signal decoding Apr. 27, 2010
7626442 Low latency multi-level communication interface Dec. 1, 2009
7620101 Equalizer circuit, communication system, and method that is adaptive to varying launch amplitudes for reducing receiver error Nov. 17, 2009
7616700 Method and system for slicing a communication signal Nov. 10, 2009
7613981 System and method for reducing power consumption in a low-density parity-check (LDPC) decoder Nov. 3, 2009
7613400 Multi-level optical data communication circuit Nov. 3, 2009
7573967 Input threshold adjustment in a synchronous data sampling circuit Aug. 11, 2009
7568127 Signal drive de-emphasis control for serial bus Jul. 28, 2009
7545879 Demodulation circuit and electronic device Jun. 9, 2009
7525374 Multi-level demodulation method and device Apr. 28, 2009
7519140 Automatic frequency correction PLL circuit Apr. 14, 2009
7508805 Apparatus and method for detecting transmitting rate of turbo decoder Mar. 24, 2009
7496149 Methods and apparatus for signaling on a differential link Feb. 24, 2009
7466765 Receiver for high bitrate binary signals Dec. 16, 2008
7463702 System and method for one-pass blind transport format detection Dec. 9, 2008
7463695 System for five-level non-causal channel equalization Dec. 9, 2008
7394863 Methods and apparatus for signaling on a differential link Jul. 1, 2008
7342459 Clock reproduction circuit Mar. 11, 2008
7248640 System and method for providing slicer level adaption Jul. 24, 2007
7239813 Bit synchronization circuit and central terminal for PON systems Jul. 3, 2007

1 2 3

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