Raymond K Yeung

US Patent:

7869662, Jan 11, 2011

Filed:

Jul 17, 2007

Appl. No.:

11/778813

Inventors:

Janet Yun - Santa Clara CA, US
David C. Chu - Palo Alto CA, US
Matthew D. Tenuta - Livermore CA, US
Raymond Yeung - San Jose CA, US
Nhan T. Nguyen - San Jose CA, US

Assignee:

Agilent Technologies, Inc. - Santa Clara CA

International Classification:

G06K 9/36

US Classification:

382291, 382282, 382307

Abstract:

A location system and a location system on a chip (LCoS) and method are described.

US Patent:

20060285119, Dec 21, 2006

Filed:

Jun 17, 2005

Appl. No.:

11/156103

Inventors:

Joanne Law - Sunnyvale CA, US
Raymond Yeung - San Jose CA, US
Eric Johnstone - Redwood City CA, US
Kerry Bagwell - Campbell CA, US

International Classification:

G01B 9/02

US Classification:

356487000, 356491000, 356477000

Abstract:

A polarization control system includes a light source that generates two light beams with different polarization states and optical frequencies. A polarization state modulator changes the polarization states of the two light beams. A first detector path generates a first beat signal from the two light beams passing through a first polarizer. A second detector path generates a second beat signal from the two light beams passing through a second polarizer that is oriented substantially orthogonal to the first polarizer. An amplitude detector generates an amplitude beat signal from the first and the second beat signals. The system then uses the amplitude beat signal to determine how to adjust the polarization state modulator in order to generate the first and the second light beams with the desired polarization states.

US Patent:

20070201596, Aug 30, 2007

Filed:

Feb 28, 2006

Appl. No.:

11/363851

Inventors:

John Flowers - San Jose CA, US
Raymond Yeung - San Jose CA, US
Janet Yun - Santa Clara CA, US

International Classification:

H03D 3/24

US Classification:

375376000

Abstract:

A method and apparatus for synchronizing clocks using an early clock are described.