Kevin Yun Tim Wong

US Patent:

6390640, May 21, 2002

Filed:

Jul 6, 2000

Appl. No.:

09/610791

Inventors:

Kevin Wong - Hayward CA
Ralph Osterhout - San Francisco CA

Assignee:

American Underwater Products Inc. - San Leandro CA

International Classification:

F21V 21084

US Classification:

362105, 362230, 362191, 362184, 362185, 362234, 362800, 362158, 351 43, 351148

Abstract:

A lighted mask for underwater divers utilizing a monochromatic blue-green LED light source secured to the mask directing light to the front of the face plate of the mask and having a push button control mounted on the mask for actuating the light source.

US Patent:

6430191, Aug 6, 2002

Filed:

Jun 30, 1997

Appl. No.:

08/885400

Inventors:

Daniel E. Klausmeier - Sunnyvale CA
Kevin Wong - San Jose CA
Quang Nguyen - San Jose CA
Cherng-Ren Sue - San Jose CA
David A. Hughes - Mountain View CA
Ross Suydam Heitkamp - Mountain View CA
Rafael Gomez - Cupertino CA

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 1256

US Classification:

370412, 370468

Abstract:

In a digital switch, incoming cells are placed into a queue in a cell memory. The switch maintains various cell queues, including VC queues that correspond to individual connections and QBin queues that correspond to various classes of service. Cells may arrive to a VC queue or a QBin queue but will depart from a QBin queue. Accordingly, cells may be moved from VC queues to QBin queues. Cells are serviced according to the use of QBin Groups. A QBin Group (QBG) includes a number of logical queues (QBins) of cells to be transported in the digital network. After a QBG is selected, one of its logical queues is selected for servicing. The QBG may be selected by examining all of the QBGs to find an eligible QBG which is most overdue for service. A QBin of the selected QBG may then be selected by examining each of the QBins comprising the selected QBG to find the most overdue for service. The QBGs may correspond to virtual interfaces.

US Patent:

6483854, Nov 19, 2002

Filed:

Jan 30, 2001

Appl. No.:

09/774335

Inventors:

Daniel E. Klausmeier - Sunnyvale CA 94087
Kevin Wong - San Jose CA 95130
David A. Hughes - Mountain View CA 96061

International Classification:

H04J 324

US Classification:

370474, 370412

Abstract:

A plurality of cells are received from a digital network and stored in a logical queue. The cells contain data information and logical connection information and the logical queue corresponds to the logical connection identified by the logical connection information. The cells are combined into a frame by extracting the cells from the logical queue and storing the cells to a local memory so that the data information is preserved. Extraction may be accomplished by notifying a local processor that the frames worth of data is ready and then transferring the data information of the cells to a local memory at the direction of the local processor. During the transfer, error detection operations may be performed. Information may be transmitted into the digital network by segmenting a frame of data into a plurality of cells and injecting each of the cells into a logical queue. The logical queue may be constructed with a series of linked list pointers associated with the memory locations.

US Patent:

6487202, Nov 26, 2002

Filed:

Jun 30, 1997

Appl. No.:

08/884999

Inventors:

Daniel E. Klausmeier - Sunnyvale CA
Kevin Wong - San Jose CA

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 1228

US Classification:

370395, 370233

Abstract:

A method of executing a sequence of multiple dependent operations, each operation including a memory read and a memory write involves overlapping memory accesses of the operations by grouping together memory reads and memory writes of multiple operations and preserving a desired sequence of the operations using a circuit external to a memory through which the memory accesses are performed. The operations may be updates to one or more linked lists. In one embodiment, the step of overlapping memory accesses may be performed by grouping together memory accesses according to ATM cell arrivals or departures. In this embodiment, the operations are associated with ATM cell arrivals or departures and may be gets or puts. Each get and put operation may be characterized by a number of atomic memory operations to update one or more linked lists. To perform the operations a circuit a having an address processor, a data processor coupled to the address processor and to the external memory, and a prefetch buffer coupled to the external memory, the address processor and to the data processor is provided.

US Patent:

6886118, Apr 26, 2005

Filed:

Apr 4, 2003

Appl. No.:

10/407006

Inventors:

Kenneth M. Rose - Palo Alto CA, US
Venkateshwar R. Pullela - San Jose CA, US
David S. Walker - San Jose CA, US
Kevin C. Wong - Santa Clara CA, US
Kaichuan He - San Jose CA, US
Yu Kwong Ng - Los Altos CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G11C029/00
G06F007/02

US Classification:

714715, 714819

Abstract:

The method can be implemented on a processor executing software instructions stored in memory. In one embodiment of the invention, the method includes receiving an Ethernet frame, wherein the Ethernet frame comprises an IP datagram, wherein the IP datagram comprises an IP header and an IP payload, wherein the IP payload comprises a User Datagram Protocol (UDP) header. When the Ethernet frame is received, a length in bytes of the IP payload of the IP datagram is calculated.

US Patent:

8155125, Apr 10, 2012

Filed:

Sep 17, 2004

Appl. No.:

10/944307

Inventors:

Gaetano Borgione - San Jose CA, US
Kevin C. Wong - Mountain View CA, US
David S. Walker - San Jose CA, US
Chickayya Naik - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/28

US Classification:

370397, 3703953, 370409

Abstract:

A method, system, and apparatus to transmit replicated multicast packets over a plurality of physical network links that are combined into one logical channel or link so that the replicated multicast packets are distributed over more than one network link is disclosed. It is further disclosed that distribution over the network links is accomplished, in part, through analyzing the multicast packet for information other than ethernet addresses. Such information can include a tag header including destination interface information.

US Patent:

8296452, Oct 23, 2012

Filed:

Mar 6, 2003

Appl. No.:

10/383128

Inventors:

Kenneth M. Rose - Palo Alto CA, US
Venkateshwar R. Pullela - San Jose CA, US
David S. Walker - San Jose CA, US
Kevin C. Wong - Santa Clara CA, US
Kaichuan He - San Jose CA, US
Yu Kwong Ng - Los Altos CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 15/16

US Classification:

709230

Abstract:

Disclosed is a method and apparatus for checking link layer protocol frames such as Ethernet frames. The method can be implemented on a processor executing software instructions stored in memory. In one embodiment of the invention, the method includes receiving an Ethernet frame, and counting data bytes of the Ethernet frame to generate a total number of counted bytes. The total number of counted bytes can be used to calculate a data length of a datagram of the Ethernet frame. Once calculated, the datagram data length can be compared to a predetermined value. If the datagram length does not fall within an acceptable range of the predetermined value, the Ethernet frame may be dropped so that the Ethernet frame does not reach its final destination.

US Patent:

20040177275, Sep 9, 2004

Filed:

Apr 4, 2003

Appl. No.:

10/407783

Inventors:

Kenneth Rose - Palo Alto CA, US
Venkateshwar Pullela - San Jose CA, US
David Walker - San Jose CA, US
Kevin Wong - Santa Clara CA, US
Kaichuan He - San Jose CA, US
Yu Ng - Los Altos CA, US

International Classification:

H04L009/00

US Classification:

713/201000

Abstract:

The method can be implemented on a processor executing software instructions stored in memory. In one embodiment of the invention, the method includes receiving an Ethernet frame, wherein the Ethernet frame comprises a Transmission Control Protocol (TCP) header, wherein the TCP header comprises a TCP header length value. When the Ethernet frame is received, the TCP header length value is compared to a predetermined value.