David M Wong

US Patent:

6363077, Mar 26, 2002

Filed:

Feb 12, 1999

Appl. No.:

09/249837

Inventors:

David Wong - Campbell CA
Cheng-chung Shih - Fremont CA
Jun Cao - San Leandro CA
William Dai - San Jose CA

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 1256

US Classification:

370422, 370232, 370392

Abstract:

A communications network switch includes a plurality of network ports for transmitting and receiving packets to and from network nodes via network links, each of the packets having a destination address and a source address, the switch being operative to communicate with at least one trunking network device via at least one trunk formed by a plurality of aggregated network links. The communications network switch provides a method and apparatus for balancing the loading of aggregated network links of the trunk, thereby increasing the data transmission rate through the trunk. The switch includes: a packet buffer for temporarily storing a packet received at a source port of the network ports, the packet having a source address value, and a destination address value indicating a destination node that is communicatively coupled with the switch via a data path including a trunk; a packet routing unit for determining a destination trunked port associated with the packet, the destination trunked port including a subset of the plurality of network ports, the destination trunked port being coupled to the destination node via the data path; and load balancing unit for selecting a destination port associated with the packet from the subset of network ports; whereby transmission loading of the aggregated network links of the trunk is balanced. In varying embodiments, the load balancing unit is operative to select destination ports from the subsets of network ports as a function of source port ID values, source addresses, and destination addresses.

US Patent:

6614758, Sep 2, 2003

Filed:

Jan 10, 2002

Appl. No.:

10/041665

Inventors:

David Wong - Campbell CA 95008
Cheng-chung Shih - Fremont CA 94539
Jun Cao - San Leandro CA 94578
William Dai - San Jose CA 95131

International Classification:

H04L 1226

US Classification:

370232, 370392, 370422

Abstract:

A communications network switch includes a plurality of network ports for transmitting and receiving packets to and from network nodes via network links, each of the packets having a destination address and a source address, the switch being operative to communicate with at least one trunking network device via at least one trunk formed by a plurality of aggregated network links. The communications network switch provides a method and apparatus for balancing the loading of aggregated network links of the trunk, thereby increasing the data transmission rate through the trunk. The switch includes: a packet buffer for temporarily storing a packet received at a source port of the network ports, the packet having a source address value, and a destination address value indicating a destination node that is communicatively coupled with the switch via a data path including a trunk; a packet routing unit for determining a destination trunked port associated with the packet, the destination trunked port including a subset of the plurality of network ports, the destination trunked port being coupled to the destination node via the data path; and load balancing unit for selecting a destination port associated with the packet from the subset of network ports; whereby transmission loading of the aggregated network links of the trunk is balanced. In varying embodiments, the load balancing unit is operative to select destination ports from the subsets of network ports as a function of source port ID values, source addresses, and destination addresses.

US Patent:

7063862, Jun 20, 2006

Filed:

Jun 3, 2003

Appl. No.:

10/454240

Inventors:

Jenny Li-Ying Lin - San Jose CA, US
David Wong - Milpitas CA, US

Assignee:

BioKey, Inc. - Fremont CA

International Classification:

A61K 9/20
A61K 31/70

US Classification:

424465, 424468, 424480, 514 29

Abstract:

Embodiments of the invention generally provide pharmaceutical drug compositions, methods of preparing oral drug compositions, such as extended release dosage compositions, and methods for treating infection. More particularly, the invention relates to formulations containing a drug and a carrier material. In one aspect, the invention provides a pharmaceutical formulation including a therapeutically active agent, from about 0. 1% to about 4. 9% by weight of a pharmaceutically acceptable polymer, and from about 0. 1% to about 30% by weight of a pharmaceutically acceptable acid, wherein the pharmaceutical composition have a zero order release profile of the therapeutically active agent. In another aspect, the invention provides methods for preparing and administering a pharmaceutical antibiotic composition in oral dosage form, such as a tablet.

US Patent:

7113479, Sep 26, 2006

Filed:

May 31, 2002

Appl. No.:

10/157867

Inventors:

David Wong - Campbell CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G01R 31/08
G08C 15/00
H04J 1/16

US Classification:

370235, 370230, 3702351, 370237, 370389, 370391, 370392, 370475, 709226, 709228, 709232

Abstract:

A network device, which includes a plurality of network ports, a switching unit, a data classification unit, and a rate control unit, is provided. The plurality of network ports is configured to send and receive input data packets. The switching unit is coupled to the plurality of network ports and is configured to switch input data packets from a first port to a second port. The rate control unit is coupled to the switching unit and configured to control a data rate provided to each port of the plurality of network ports. The data classification unit is coupled to the switching unit and to the rate control unit. The data classification unit is configured to classify data packets based on their contents and output a classification to the rate control unit. The rate control unit is configured to perform rate control for input data packets based on the classification of each data packet.

US Patent:

7124330, Oct 17, 2006

Filed:

Nov 13, 2002

Appl. No.:

10/292581

Inventors:

David Wong - Campbell CA, US
Xi Chen - Fremont CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G06F 11/00

US Classification:

714 43, 709224

Abstract:

The network device includes a transceiver, a pattern generation unit and a pattern recognition unit. The transceiver connects to a communications medium. The pattern generation unit connects to the transceiver. The pattern generation unit is configured to generate a first code word in response to a self-test signal. The pattern recognition unit connects to the communications medium and a network entity. The pattern recognition unit is configured to receive the first code word from the transceiver and to determine whether the first code word includes a loop back pattern. The pattern recognition unit is configured to generate a second code based upon the first code word and to include in the second code word a pattern different from the first code word.

US Patent:

7213103, May 1, 2007

Filed:

Apr 22, 2004

Appl. No.:

10/831417

Inventors:

Michael Eng - San Jose CA, US
David Wong - Cupertino CA, US
Lamont Benaresh - Sunnyvale CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

G06F 13/00
G06F 12/00

US Classification:

711114, 711154, 714 6

Abstract:

Improved techniques for accessing data storage systems are disclosed. These techniques detect, correct and prevent undesirable access delays experienced in storage systems. “Slow-access” refers to an access operation that does not successfully complete within a predetermined amount of time. When slow-access is detected, an attempt is made to provide data by other means rather than waiting for the access operation to eventually complete. By way of example, parity information is used to generate data rather than waiting beyond a predetermined amount of time for a “slow-read” operation to complete. In addition, preventative measures can be taken to avoid reoccurrence of a “slow-access” operating once it has been identified. These preventative measures, for example, include rewriting the same data to the same data section that caused the slow-access problem or remapping the section to another section in order to avoid the same section of data to cause another slow access problem.

US Patent:

7251217, Jul 31, 2007

Filed:

Aug 7, 2003

Appl. No.:

10/635465

Inventors:

David Wong - Campbell CA, US
Cheng-chung Shih - Fremont CA, US
Jun Cao - San Leandro CA, US
William Dai - San Jose CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 12/26
H04L 12/56

US Classification:

370232, 370235, 370392, 370401

Abstract:

A communications network switch includes a plurality of network ports for transmitting and receiving packets to and from network nodes via network links, each of the packets having a destination address and a source address, the switch being operative to communicate with at least one trunking network device via at least one trunk formed by a plurality of aggregated network links. The communications network switch provides a method and apparatus for balancing the loading of aggregated network links of the trunk, thereby increasing the data transmission rate through the trunk. The switch includes: a packet buffer for temporarily storing a packet received at a source port of the network ports, the packet having a source address value, and a destination address value indicating a destination node that is communicatively coupled with the switch via a data path including a trunk; a packet routing unit for determining a destination trunked port associated with the packet, the destination trunked port including a subset of the plurality of network ports, the destination trunked port being coupled to the destination node via the data path; and load balancing unit for selecting a destination port associated with the packet from the subset of network ports; whereby transmission loading of the aggregated network links of the trunk is balanced. In varying embodiments, the load balancing unit is operative to select destination ports from the subsets of network ports as a function of source port ID values, source addresses, and destination addresses.

US Patent:

7260748, Aug 21, 2007

Filed:

Mar 21, 2006

Appl. No.:

11/384516

Inventors:

David Wong - Campbell CA, US
Xi Chen - Fremont CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G06F 11/00

US Classification:

714 43

Abstract:

The network device includes a transceiver, a pattern generation unit and a pattern recognition unit. The transceiver connects to a communications medium. The pattern generation unit connects to the transceiver. The pattern generation unit is configured to generate a first code word in response to a self-test signal. The pattern recognition unit connects to the communications medium and a network entity. The pattern recognition unit is configured to receive the first code word from the transceiver and to determine whether the first code word includes a loop back pattern. The pattern recognition unit is configured to generate a second code based upon the first code word and to include in the second code word a pattern different from the first code word.