Shu Hwa Lin

US Patent:

6643332, Nov 4, 2003

Filed:

Jul 9, 1999

Appl. No.:

09/350700

Inventors:

Robert Morelos-Zaragoza - Sunnyvale CA
Shu Lin - Honolulu HI
Marc Fossorier - Honolulu HI

Assignee:

LSI Logic Corporation - Milpitas CA

International Classification:

H04L 2302

US Classification:

375265

Abstract:

A method and apparatus for multi-level encrypted encoding and decoding of digital signals, which includes utilizing only one type of encoder and one type of decoder. This can be either the same encoder and decoder used in throughout the process, or multiple, identical encoders and decoders. This allows the system to compensate for atmospheric degradation with higher bandwidth efficiency and a simplified receiver structure. The invention further identifies a 2 symbol generation technique that maps in disjoint regions of X-dimensional space, which allows different data bits to be eliminated from the decoding scheme and maximizes the number of independent data substreams that can be maintained.

US Patent:

7831895, Nov 9, 2010

Filed:

Jul 25, 2006

Appl. No.:

11/492383

Inventors:

Shu Lin - Cerritos CA, US

Assignee:

Communications Coding Corporation - Cerritos CA

International Classification:

G06F 11/00
H03M 13/00

US Classification:

714800

Abstract:

The universal forward error-correction coding system provides adjustable code rates and coding gains to greatly benefit the design of many modern digital communications (data storage) systems. The channel encoding and decoding methods are universal such that a single encoder and a single decoder can be used to implement all the forward error-correction codes of different code rates. This universal forward error-correction coding system also includes a novel systematic code generation procedure that has the capability of generating many classes of codes that provide the best balance between coding gain performance and implementation complexity.

US Patent:

8069390, Nov 29, 2011

Filed:

Jun 28, 2007

Appl. No.:

11/770480

Inventors:

Shu Lin - Cerritos CA, US

Assignee:

Commuications Coding Corporation - Cerritos CA

International Classification:

H03M 13/00

US Classification:

714758, 714801

Abstract:

The universal forward error-correction coding system provides adjustable code rates and coding gains to greatly benefit the design of many modern digital communications (data storage) systems. The channel encoding and decoding methods are universal such that a single encoder and a single decoder can be used to implement all the forward error-correction codes of different code rates. This universal forward error-correction coding system also includes a novel systematic code generation procedure that has the capability of generating many classes of codes that provide the best balance between coding gain performance and implementation complexity.

US Patent:

8145975, Mar 27, 2012

Filed:

Feb 28, 2008

Appl. No.:

12/039489

Inventors:

Shu Lin - Cerritos CA, US
Harry Tan - Palos Verdes Estates CA, US
Robert M. Liang - Irvine CA, US

Assignee:

IP Video Communications Corporation - Cerritos CA

International Classification:

G06F 11/00

US Classification:

714758

Abstract:

The Universal Packet Loss Recovery System is capable of recovering end-to-end network packet losses to obtain reliable end-to-end network delivery of multimedia streaming content over Internet Protocol (IP) networks, where packet losses appear above the transport layer. This system incorporates the use of Packet Forward Error Correction Coding (FEC) with packet interleaving processing prior to transport. Packet FEC Coding is an error correction coding method at the packet level which improves link transmission reliability. At the source end of the packet-switching network, the Packet FEC Coding scheme encodes a stream of transport multimedia content packets by including redundant packets to allow for recovery of lost packets by the Packet FEC Coding decoder at the user end of the packet-switching network. Since lost packets appear only above the transport layer in the IP network protocol stack, Packet FEC Coding can be viewed as a transport layer or application layer coding method.

US Patent:

20130052623, Feb 28, 2013

Filed:

Oct 26, 2012

Appl. No.:

13/662271

Inventors:

University Of southern California - Los Angeles CA, US
Michael J. Zyda - Carmel CA, US
Chang Wei-Chung - Tainan City, TW
Shu Fen Lin - Los Angeles CA, US

Assignee:

UNIVERSITY OF SOUTHERN CALIFORNIA - Los Angeles CA

International Classification:

A63B 69/00

US Classification:

434247

Abstract:

A system for encouraging a user to perform substantial physical activity. The system may include sensors that may be worn by the user while the user is performing a substantial physical activity, such as running or playing basketball. The sensors may detect the magnitude of the physical activity and may transmit data regarding the physical activity to a processing system. The processing system may display a reward to encourage the user for participating in physical activity and the reward provided may be based on the physical activity of the user.

US Patent:

43441718, Aug 10, 1982

Filed:

Dec 11, 1980

Appl. No.:

6/215489

Inventors:

Shu Lin - Honolulu HI
Philip S. Yu - Pleasantville NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1110

US Classification:

371 35

Abstract:

A hybrid scheme for controlling transmission errors in digital data communication systems. Normally, data blocks with a small number of parity digits for error detection are transmitted. When the presence of errors is detected, the retransmissions are not the original data blocks but some properly selected blocks for correcting errors in those erroneously received data blocks which are stored in a buffer at the receiver. The retransmitted blocks are formed based on the original data blocks and error-correcting codes with an invertible property. When such blocks are received, they are used to recover the original data blocks either by an inversion operation or by a decoding process.

US Patent:

57815690, Jul 14, 1998

Filed:

Oct 28, 1996

Appl. No.:

8/738261

Inventors:

Marc P. C. Fossorier - Honolulu HI
Shu Lin - Honolulu HI
Dojun Rhee - San Jose CA

Assignee:

LSI Logic Corporation - Milpitas CA

International Classification:

H03M 1312

US Classification:

371 437

Abstract:

A differential trellis decoding method for convolutional codes is provided which eliminates from candidacy half of the transitions in each round that it is used, thereby obviating the need for weight calculations for the eliminated transitions. The method is based on a decomposition of the code trellis into fully connected bipartite graphs and the observation that the symmetry of the bipartite graphs of the trellis permits the comparison and selection process for one state to influence the comparison and selection process for other states in the bipartite graph. This method results in a reduced number of operations and hence a reduced complexity for convolutional decoding.