Ut Thi Nguyen

US Patent:

7388871, Jun 17, 2008

Filed:

Dec 17, 2004

Appl. No.:

11/015445

Inventors:

Francis Cheung - Del Mar CA, US
Ut Nguyen - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 12/28
H04L 12/56

US Classification:

370401, 370389, 370488, 370486

Abstract:

Certain aspects of changing message filter coefficients dynamically in a packetized network system may comprise selecting a filter for filtering data in a first portion of an incoming data stream. At initiation of a new modification process, a determination may be made as to whether the selected filter is in use and if so, data read by the selected filter may be invalidated or otherwise not utilized for its intended purpose. A selected filter may be marked as being in use prior to being updated, indicating that there is no match for the selected filter. Filter coefficients for the selected filter may be updated while the selected filter is marked as being in use. Upon completion of updating the filter, the selected filter may be marked as not being in use.

US Patent:

7450617, Nov 11, 2008

Filed:

Aug 14, 2003

Appl. No.:

10/640682

Inventors:

Francis Cheung - Del Mar CA, US
Iue-Shuenn Chen - San Diego CA, US
Ut Nguyen - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04J 3/04

US Classification:

370536, 370542

Abstract:

The present invention is directed to a system and method for demultiplexing video signals that have been combined using a time division multiplexing approach. The system includes synchronizers, parsers, demultiplexers, and an input buffer. Each demultiplexer within the system includes a header detect module, a slot map module, a frame sync module and a packet accept module. The method includes the steps of receiving an input stream that contains data packets for more than one program channel that have been combined in which packet identification (PID) information is used and a time division multiplexing scheme, such as transport stream multiplexing format (TSMF) is used. The PID and slot location for each packet is analyzed. Based on the PID and slot location a packet is either accepted or rejected.

US Patent:

7461282, Dec 2, 2008

Filed:

May 19, 2004

Appl. No.:

10/848160

Inventors:

Francis Cheung - Del Mar CA, US
Iue-Shuenn Chen - San Diego CA, US
Ut Nguyen - San Diego CA, US
Rajesh Mamidwar - San Diego CA, US
Brian Schoner - Fremont CA, US
Dan Simon - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G06F 1/14

US Classification:

713400, 713502, 386 13, 386 85, 348513

Abstract:

A system and method is provided for generating and using multiple synchronized local program timestamps in a media processing system. The system includes an input processor, one or more local timestamp insertion modules, one or more parsers, and an input buffer. Each local program timestamp module includes a clock reference recovery module, a local program clock synchronized to the system time clock of a program source, and a timestamp generator. The system also includes one or more processing modules such as record modules, transmission modules, and display modules. When a data packet is received by the media processing system, the local timestamp insertion module appends a timestamp to the data packet. The timestamp is based on the synchronized local program clock for the program associated with the data packet. The processing modules utilize the synchronized local timestamps and their associated local program clock in a variety of applications.

US Patent:

7489362, Feb 10, 2009

Filed:

Mar 3, 2004

Appl. No.:

10/791686

Inventors:

David A. Baer - San Jose CA, US
Jeff Tingley - San Jose CA, US
Aleksandr Movshovich - Santa Clara CA, US
Brad Grossman - Sunnyvale CA, US
Brian F. Schoner - Fremont CA, US
Chengfuh Jeffrey Tang - Saratoga CA, US
Chuck Monahan - Mountain View CA, US
Darren D. Neuman - Palo Alto CA, US
David Chao Hua Wu - San Diego CA, US
Francis Cheung - Del Mar CA, US
Greg A. Kranawetter - Saratoga CA, US
Hoang Nhu - Irvine CA, US
Hsien-Chih Jim Tseng - San Jose CA, US
Iue-Shuenn Chen - San Diego CA, US
James D. Sweet - Sunnyvale CA, US
Jeffrey S. Bauch - Torrance CA, US
Keith LaRell Klingler - San Diego CA, US
Patrick Law - Cupertino CA, US
Rajesh Mamidwar - San Diego CA, US
Dan Simon - San Diego CA, US
Sang Van Tran - Encinitas CA, US
Shawn V. Johnson - Laguna Hills CA, US
Steven T. Jaffe - Irvine CA, US
Thu T. Nguyen - San Jose CA, US
Ut Nguyen - San Diego CA, US
Yao-Hua Steven Tseng - Fremont CA, US
Brad Delanghe - Sunnyvale CA, US
Ben Giese - Oceanside CA, US
Jason Demas - Irvine CA, US
Lakshman Ramakrishnan - Bangalore, IN
Sandeep Bhatia - Bangalore, IN
Guang-Ting Shih - San Jose CA, US
Tracy C. Denk - Aliso Viejo CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04N 5/44
H04N 3/27

US Classification:

348554, 348725

Abstract:

A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is disclosed. A TVOC includes the functionality necessary to receive and display television signals in a variety of input and output formats. A TVOC can be used in set-top boxes for cable and satellite television, or directly within a television. All functionality provided can be provided on a single integrated circuit. TVOC includes a data transport module, an IF demodulator, a digital audio engine, an analog audio engine, a digital video engine, and an analog video engine. The TVOC also includes three sets of interfaces including output interfaces, control interfaces and ancillary interfaces. Further features and embodiments provide enhanced functionality and increased efficiencies.

US Patent:

7561597, Jul 14, 2009

Filed:

Aug 14, 2003

Appl. No.:

10/640684

Inventors:

Francis Cheung - Del Mar CA, US
Ut Nguyen - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04H 20/28
H04J 3/12
H04N 9/74

US Classification:

370487, 370528, 348584

Abstract:

A system and method for substituting data packets into a data stream, is provided. In one embodiment, the data stream is a video data stream. The system includes packet buffers, a multiplexer, a packet substitution controller, a direct memory access (DMA) engine and a link list buffer controller. A method is also provided for substituting data packets—containing information of the same or different type—into a video data stream at variable rates using a selection mechanism driven by link list buffer control.

US Patent:

7668270, Feb 23, 2010

Filed:

Dec 20, 2005

Appl. No.:

11/313531

Inventors:

Ut T. Nguyen - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04B 1/10

US Classification:

375350

Abstract:

Methods and systems for a programmable filtering offset may include filtering desired data located at a variable offset from a start of a particular message in a data stream using a programmable hardware filter module. The variable offset may be specified in bits or bytes. The programmable hardware filter module may start filtering from an offset corresponding to the start of the desired data. The programmable hardware filter module may be a variable length filter or a fixed length filter. An offset from the start of a particular message may be determined, where the desired data that may be compared may start after the offset from the beginning of the message. The programmable hardware filter module may be configured with the determined offset.

US Patent:

7835400, Nov 16, 2010

Filed:

Jun 8, 2009

Appl. No.:

12/480523

Inventors:

Francis Cheung - Del Mar CA, US
Ut Nguyen - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04H 20/28
H04J 3/12

US Classification:

370487, 370528

Abstract:

A system and method for substituting data packets into a data stream, is provided. In one embodiment, the data stream is a video data stream. The system includes packet buffers, a multiplexer, a packet substitution controller, a direct memory access (DMA) engine and a link list buffer controller. A method is also provided for substituting data packets - containing information of the same or different type—into a video data stream at variable rates using a selection mechanism driven by link list buffer control.

US Patent:

7961255, Jun 14, 2011

Filed:

Feb 6, 2009

Appl. No.:

12/367425

Inventors:

David A. Baer - San Jose CA, US
Jeff Tingley - San Jose CA, US
Aleksandr Movshovich - Santa Clara CA, US
Brad Grossman - Sunnyvale CA, US
Brian F. Schoner - Fremont CA, US
Chengfuh Jeffrey Tang - Saratoga CA, US
Chuck Monahan - Mountain View CA, US
Darren D. Neuman - Palo Alto CA, US
David Chao Hua Wu - San Diego CA, US
Francis Cheung - Del Mar CA, US
Greg A. Kranawetter - Laguna Hills CA, US
Hoang Nhu - Irvine CA, US
Hsien-Chih Jim Tseng - San Jose CA, US
Iue-Shuenn Chen - San Diego CA, US
James D. Sweet - Sunnyvale CA, US
Jeffrey S. Bauch - Alpharetta GA, US
Keith LaRell Klinger - San Diego CA, US
Patrick Law - Cupertino CA, US
Rajesh Mamidwar - San Diego CA, US
Dan Simon - San Diego CA, US
Sang Van Tran - Encinitas CA, US
Shawn V. Johnson - Laguna Hill CA, US
Steven T. Jaffe - Irvine CA, US
Thu T. Nguyen - San Jose CA, US
Ut Nguyen - San Diego CA, US
Yao-Hua Steven Tseng - Fremont CA, US
Brad Delanghe - Sunnyvale CA, US
Ben Giese - Oceanside CA, US
Jason Demas - Irvine CA, US
Lakshman Ramakrishnan - Banglore, IN
Sandeep Bhatia - Bangalore, IN
Guang-Ting Shih - San Jose CA, US
Tracy C. Denk - Aliso Viejo CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04N 5/44
H04N 3/27

US Classification:

348554, 348725

Abstract:

A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is disclosed. A TVOC includes the functionality necessary to receive and display television signals in a variety of input and output formats. A TVOC can be used in set-top boxes for cable and satellite television, or directly within a television. All functionality provided can be provided on a single integrated circuit. TVOC includes a data transport module, an IF demodulator, a digital audio engine, an analog audio engine, a digital video engine, and an analog video engine. The TVOC also includes three sets of interfaces including output interfaces, control interfaces and ancillary interfaces. Further features and embodiments provide enhanced functionality and increased efficiencies.

Address:

2711 Nye St, San Diego, CA 92111

Phone:

8583574203

VIN:

WDCGG5GB3AF507983

Make:

MERCEDES-BENZ

Model:

GLK-CLASS

Year:

2010