Dennis John Lee

US Patent:

6356099, Mar 12, 2002

Filed:

Nov 10, 1994

Appl. No.:

08/337636

Inventors:

Dennis Lee - San Jose CA
Mark William Knecht - Los Gatos CA
Kalaine Mak Wong - San Jose CA
Oikwan Tsang - San Jose CA

Assignee:

Advanced Micro Devices, Inc. - Austin TX

International Classification:

H03K 1716

US Classification:

326 24, 326 83, 327206

Abstract:

An input buffer for an integrated circuit and providing reduced sensitivity to input noise present in a transmission line environment. This input buffer deskews an input signal where the rise time is much slower than the fall time, such as that from an open-collector output driver, so that the rising edge propagation delay and falling edge propagation delay of the input buffer are approximately equal.

US Patent:

6754744, Jun 22, 2004

Filed:

Sep 10, 2002

Appl. No.:

10/237612

Inventors:

Hyung Won Kim - San Jose CA
Dennis S. Lee - Saratoga CA

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G06F 506

US Classification:

710 56, 710 52

Abstract:

A process of handling packet data in a packet buffer is disclosed. Free pointers are stored in a plurality of free pointer queues, with each of the plurality free pointer queues in a form of a linked list and the free pointers are retrieved from each of the plurality of free pointer queues and storing in a prefetch memory to provide a throughput of one free pointer per clock cycle. When an initial portion of a data packet is received, two free pointers are retrieved from the prefetch memory. One of the two free pointers is stored in a start pointer register connoting a start of the data packet and one free pointer is supplied for data elements of the data packet. One free pointer per middle data element is supplied, while no new pointer is needed for the end of packet data element. The start of the data packet is linked with an end of packet portion of a previously received packet in an output queue memory and a data element is read out of the data packet from the output queue memory when selected by a transmission scheduler and releasing a pointer of the data element to one of the plurality of free pointer queues in a way that balances the lengths of all free pointer queues. Additionally, all pointers of a packet are released to one of the plurality of free pointer queues within one cycle when the packet is dropped.

US Patent:

7463630, Dec 9, 2008

Filed:

Jun 17, 2005

Appl. No.:

11/154827

Inventors:

Dennis Sungikk Lee - San Jose CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 12/28

US Classification:

370392, 370389, 370401

Abstract:

A network device for processing data on a data network includes a plurality of ports, configured to receive data from a data network and to send processed data to the data network, a memory management unit configured store data on and retrieve data from the memory and a multi-part parser configured to parse the data received. The multi-part parser comprises several parsing blocks configured to serially parse the data, with each block designated to parse particular values and where each block but a first block receives parsed data from a prior block with the particular values at a zero offset position.

US Patent:

7860091, Dec 28, 2010

Filed:

Nov 6, 2008

Appl. No.:

12/289914

Inventors:

Dennis Sungik Lee - San Jose CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 12/28

US Classification:

370389, 370392, 370412

Abstract:

Devices and methods for processing data are disclosed. An example network device includes a plurality of ports. Each port of the example network device is configured to receive data and to send processed data. The example network device further includes a multi-part parser in communication with the plurality of ports. In the example device, the multi-part parser is configured to parse received data. Further in the example device, the multi-part parser comprises a plurality of parsing blocks that are configured to serially parse the received data, where each parsing block is configured to parse particular values. Still further in the example device, each of the plurality of parsing blocks, except a first parsing block, receives parsed data from a prior parsing block with fields of the particular values at a zero offset position.

US Patent:

8228932, Jul 24, 2012

Filed:

Jun 24, 2005

Appl. No.:

11/165498

Inventors:

Dennis Sungik Lee - San Jose CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 12/54

US Classification:

370428, 370389

Abstract:

According to one embodiment of the invention, a network device for processing data on a data network, includes a plurality of ports, where at least one higher speed port of the plurality of ports is configured to send and receive data between inter-networked devices, a memory management unit, in communication with and controlling memory external to the network device, configured store data on and retrieve data from the memory and a parser, in communication with the plurality of ports and the memory management unit, configured to parse the data received from the data network. The parser includes at least two independent parser units, with one of the independent parser units parsing data received by the at least one higher speed port and another of the independent parser units parsing data received by a remainder of the plurality of ports.

US Patent:

20040200514, Oct 14, 2004

Filed:

Jan 20, 2004

Appl. No.:

10/760792

Inventors:

Dennis Lee - San Leandro CA, US

International Classification:

B08B009/02

US Classification:

134/16600R, 134/16900R, 134/16900C, 134/183000

Abstract:

A flushing system is used to clean and/or clear clogged sinks, waste pipes, and/or toilets. It consists of the following components: a control nozzle, a drain attachment, a toilet attachment, foot pedal liquid pump, and a water hose for connecting these components to function as a system. Since the flushing system utilizes the application of the liquid pressure principle, it is required to be connected to a pressurized liquid source when the user chooses not to use the foot pedal liquid pump. An example of a pressurized liquid source can be a water main. A water nozzle is used as an option to connect between the pressurized liquid source and the drain or toilet attachments to control the liquid flow. A pulsating jet of pressurized liquid can be delivered from the outlet of either the drain or toilet attachment to effectively clear clogged pipes by the opening and closing motion of the water nozzle. This flushing system is flexibly designed so that various configurations can be assembled depending on the application needed and can be used where a water main is not accessible. Each configuration provides ease of use and a more solution than all other patented and currently available solutions. When not in use, the whole flushing system can be conveniently stored inside the foot pedal pump, giving it a very aesthetic appealing look. Although the present invention has been described with respect to certain embodiments, examples, and applications, it will be apparent to those skilled in the art that various modifications and changes may be made without departing from the invention.

US Patent:

20060187828, Aug 24, 2006

Filed:

Jun 17, 2005

Appl. No.:

11/154585

Inventors:

Dennis Sungik Lee - San Jose CA, US
Brandon Carl Smith - San Jose CA, US

International Classification:

H04L 12/26
H04L 12/56

US Classification:

370229000, 370412000

Abstract:

A network device for processing data on a data network includes a port interface, connected to a plurality of ports configured to receive data packets from a data network and to send processed data packets to the data network, a memory management unit, in communication with and controlling memory external to the network device, configured store data on and retrieve data from the memory, an ingress module, in communication with the port interface and the memory management unit, configured to parse the received data packet and a search module, in communication with the parser, configured to provide lookup searches of tables upon request from the parser. The ingress module is configured to assign a packet identifier to each data packet received the plurality of ports and the packet identifier is used to track each data packet within the network device.

US Patent:

20060187919, Aug 24, 2006

Filed:

Jun 24, 2005

Appl. No.:

11/165495

Inventors:

Dennis Lee - San Jose CA, US

International Classification:

H04L 12/56

US Classification:

370389000, 370412000

Abstract:

A network device for processing data on a data network, the network device includes a port interface, in communication with a plurality of ports, configured to receive data packets from a data network and to send processed data packets to the data network, a memory management unit, in communication with and controlling memory external to the network device, configured store data on and retrieve data from the memory, a parser, in communication with the port interface and the memory management unit, configured to parse the received data packets to determine attributes of the data packets and a search engine, in communication with the parser, configured to perform table lookup searches in response to requests from the parser. The parser comprises at least two stages, where the at least two stages are each configured to parser particular portions of the received data packets.