Li Huang Fan

US Patent:

6934256, Aug 23, 2005

Filed:

Jan 25, 2001

Appl. No.:

09/769544

Inventors:

Van Jacobson - Woodside CA, US
Li Fan - San Jose CA, US
Kathleen Nichols - Woodside CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L012/26

US Classification:

370235, 3702351

Abstract:

A network device identifies a non-adaptive flow as follows. The network device drops packets on a random basis using a Random Early Detection (RED) algorithm. A classifier reads indicia of a selected flow from at least one field of a header of a packet received by the network device. The network device calculates a drop interval for packets of the selected flow dropped by the RED algorithm, in response to a time at which the packets were dropped. The network device then applies a statistical test to drop intervals of a plurality of flows in order to identify the non-adaptive flow.

US Patent:

7782072, Aug 24, 2010

Filed:

Sep 27, 2006

Appl. No.:

11/535859

Inventors:

Li Fan - San Ramon CA, US
John K. Gritters - Livermore CA, US

Assignee:

FormFactor, Inc. - Livermore CA

International Classification:

G01R 31/02

US Classification:

324762

Abstract:

A probe group can include multiple probes for testing devices having contact pads. The probes can comprise beams, contact tip structures, and mounting portions. The beams can provide for controlled deflection of the probes. The contact tip structures can be connected to the beams and can include contact portions for contacting with the devices. The mounting portions of the beams can be attached to support structures, which can be arranged in a staggered pattern. The beams located in a first row of the staggered pattern can include narrowing regions that lie substantially in line with the mounting portions of a second row of the beams.

US Patent:

7872394, Jan 18, 2011

Filed:

Dec 12, 2002

Appl. No.:

10/319403

Inventors:

John Gritters - Livermore CA, US
Christopher A. Bang - Glendale CA, US
Erno Klaassen - Los Altos CA, US
Li Fan - San Ramon CA, US
Richard Chen - Woodland Hills CA, US
Hsin-Chih Yeh - College Park MD, US
Ezekiel John Joseph Kruglick - San Diego CA, US

International Classification:

H02N 1/00
G02B 26/08

US Classification:

310309, 3592251, 359291, 257414, 216 6

Abstract:

In certain embodiments, a MEMS actuator is provided comprising a frame and a movable structure coupled to the frame. A vertical comb drive is provided between the frame and the movable structure to actuate the movable structure.

US Patent:

7948876, May 24, 2011

Filed:

Jun 7, 2005

Appl. No.:

11/146585

Inventors:

Van Jacobson - Woodside CA, US
Li Fan - San Jose CA, US
Kathleen Nichols - Woodside CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G01R 31/08

US Classification:

370229, 370252, 370235, 370392, 370469

Abstract:

A network device identifies a non-adaptive flow as follows. The network device drops packets on a random basis using a Random Early Detection (RED) algorithm. A classifier reads indicia of a flow from at least one field of a header of a packet received by the network device. The network device calculates a drop interval for packets of the flow dropped by the RED algorithm, in response to a time at which the packets were dropped. The network device then applies a statistical test to drop intervals of a plurality of flows in order to identify the non-adaptive flow.

US Patent:

8131712, Mar 6, 2012

Filed:

Oct 15, 2007

Appl. No.:

11/872386

Inventors:

Gautham Thambidorai - San Jose CA, US
Eisar A. Lipkovitz - San Francisco CA, US
Cosmos Nicolaou - Palo Alto CA, US
Li Fan - Los Altos CA, US

Assignee:

Google Inc. - Mountain View CA

International Classification:

G06F 7/00

US Classification:

707715, 707610, 707724

Abstract:

A corpus of documents is identified, such as a large corpus of web documents. A quality score is applied to each, and at least some of the documents in the corpus of documents are identified based on their respective quality scores. At least one query characteristic, for instance, the language of a query, associated with a plurality of search queries is identified. A subset of documents in the corpus of documents is identified that satisfy the at least one query characteristic. An index is built that includes the identified at least some documents and the identified subset of documents.

US Patent:

8148646, Apr 3, 2012

Filed:

Sep 29, 2008

Appl. No.:

12/240505

Inventors:

Li Fan - San Ramon CA, US
Michael J. Armstrong - Danville CA, US
John K. Gritters - Livermore CA, US

Assignee:

FormFactor, Inc. - Livermore CA

International Classification:

H05K 1/11

US Classification:

174261, 361760, 439 66, 32475403

Abstract:

A contact apparatus can be made by providing a first substrate with electrically conductive terminals and second substrates each of which can have contact structures. Each of the contact structures can have a contact tip. The second substrates can be aligned such that contact tips of the contact structures are aligned substantially in a plane. An optical system can be used to monitor an actual position of the second substrates, and a mechanical system can be used to move the second substrates to aligned positions. The contact structures can be attached to ones of the terminals on the first substrate while the second substrates are in the aligned positions.

US Patent:

8203352, Jun 19, 2012

Filed:

Aug 24, 2010

Appl. No.:

12/861984

Inventors:

Li Fan - San Ramon CA, US
John K. Gritters - Livermore CA, US

Assignee:

FormFactor, Inc. - Livermore CA

International Classification:

G01R 31/00
G01R 1/067

US Classification:

32475401, 32475507

Abstract:

A probe group can include multiple probes for testing devices having contact pads. The probes can comprise beams, contact tip structures, and mounting portions. The beams can provide for controlled deflection of the probes. The contact tip structures can be connected to the beams and can include contact portions for contacting with the devices. The mounting portions of the beams can be attached to support structures, which can be arranged in a staggered pattern. The beams located in a first row of the staggered pattern can include narrowing regions that lie substantially in line with the mounting portions of a second row of the beams.

US Patent:

8620950, Dec 31, 2013

Filed:

Feb 17, 2012

Appl. No.:

13/399822

Inventors:

Gautham Thambidorai - San Jose CA, US
Eisar A. Lipkovitz - San Francisco CA, US
Cosmos Nicolaou - Palo Alto CA, US
Li Fan - Los Altos CA, US

Assignee:

Google Inc. - Mountain View CA

International Classification:

G06F 7/00

US Classification:

707769, 707770

Abstract:

A corpus of documents is identified, such as a large corpus of web documents. A quality score is applied to each, and at least some of the documents in the corpus of documents are identified based on their respective quality scores. At least one query characteristic, for instance, the language of a query, associated with a plurality of search queries is identified. A subset of documents in the corpus of documents is identified that satisfy the at least one query characteristic. An index is built that includes the identified at least some documents and the identified subset of documents.