1
Weizhuang: Decoding a received BCH encoded signal. Broadcom Corporation, Garlick Harrison & Markison, Timothy W Markison, Kevin L Smith, April 17, 2007: US07206992 (41 worldwide citation)

A method or apparatus for decoding of a BCH encoded signal begins by determining whether the received BCH encoded signal includes error. The decoding process continues when the received BCH encoded signal includes error by determining whether the error is correctable. This may be done by determining ...


2
Weizhuang Wayne Xin: Parallel decoding of a BCH encoded signal. Broadcom Corporation, Garlick Harrison & Markison, Timothy W Markison, Kevin L Smith, June 26, 2007: US07237183 (36 worldwide citation)

A method or apparatus for error identification of a BCH encoded signal includes processing that begins by receiving a BCH encoded signal in a binary polynomial format to produce a received polynomial. The processing then continues by converting the received polynomial into a plurality of error ident ...


3
Jalil Fadavi Ardekani, Walter G Soto, Weizhuang Xin: Multi-session asymmetric digital subscriber line buffering and scheduling apparatus and method. Agere Systems, Synnestvedt & Lechner, March 16, 2004: US06707822 (26 worldwide citation)

A transceiver for an asymmetric communication system is provided that implements a buffering and scheduling scheme that utilizes a virtual clock signal to synchronize processing of asynchronous frame data for multiple ADSL sessions. In every virtual clock cycle, the transceiver first sequentially pe ...


4
Weizhuang Xin, Ning Kong: Method and apparatus for turbo decoding of trellis coded modulated signal transmissions. Skyworks Solutions, Christopher J Rourk, Goodwin Gruber L, September 21, 2004: US06795507 (18 worldwide citation)

An implementation of an iterative decoding system within a Trellis Coded Modulation communications environment. In a disclosed embodiment of the present invention, a communication system is described wherein the transmitter uses a channel encoder (consisting of either a convolutional encoder or a bl ...


5
Weizhuang Xin, Ganning Yang, Kenneth S Walley: Method and apparatus for sharing transmit shaping filters among phase shifted signals. Conexant Systems, Shane X Short, Akin Gump Strauss Hauer & Feld L, January 30, 2001: US06181674 (13 worldwide citation)

A unique system for efficiently implementing filtered, phase shifted channels is disclosed. Instead of using separate transmit shaping filters for each channel, and modulating the filtered signals with phase-shifted carrier and one might suppose, the system phase rotates the signals for each channel ...


6
Bin Zhao, Jack W Cornish, Brian B Horng, Andrew M Kameya, Jan Krellner, Kenneth C Kwok, Victor K Lee, Weizhuang W Xin: LED driver with feedback calibration. Freescale Semiconductor, October 11, 2011: US08035315 (11 worldwide citation)

Power management in a light emitting diode (LED) system having a plurality of LED strings is disclosed. A voltage source provides an output voltage to drive a plurality of LED strings. An LED driver implements a feedback mechanism to monitor the tail voltages of the active LED strings to identify th ...


7
Weizhuang Xin: Low complexity decoding of low density parity check codes. KeyEye Communications, Lumen Patent Firm, October 21, 2008: US07441178 (10 worldwide citation)

An improved decoder and decoding method for low density parity check (LDPC) codes is provided. Decoding proceeds by repetitive message passing from a set of variable nodes to a set of check nodes, and from the check nodes back to the variable nodes. The variable node output messages include a “best ...


8
Weizhuang: Efficient address generation for interleaver and de-interleaver. Broadcom Corporation, Garlick Harrison & Markison, Shayne X Short, April 4, 2006: US07024596 (6 worldwide citation)

Efficient address generation for interleaver and de-interleaver. The present invention performs interleaving and de-interleaving, at opposite ends of a communication channel, by employing an efficient address generation scheme that is adaptable across a wide variety of applications and platforms. Th ...


9
Weizhuang Xin: Low complexity decoding of low density parity check codes. Dorsey & Whitney, December 21, 2010: US07856593 (6 worldwide citation)

An improved decoder and decoding method for low density parity check (LDPC) codes is provided. Decoding proceeds by repetitive message passing from a set of variable nodes to a set of check nodes, and from the check nodes back to the variable nodes. The variable node output messages include a “best ...


10
Weizhuang Xin, Ganning Yang: Method and apparatus for improving modulation accuracy. Conexant Systems, Knobbe Martens Olson & Bear, July 31, 2001: US06268818 (6 worldwide citation)

A system for digital-to-analog conversion and up-conversion (frequency multiplication) that reduces the distortion and attenuation caused by the sinc effect is described. The shape of the sinc function that gives rise to the sinc effect is altered in a manner such that the distortion produced by the ...