Steve T Chang

US Patent:

6347380, Feb 12, 2002

Filed:

Mar 3, 1999

Appl. No.:

09/261414

Inventors:

Steve Chang - Fremont CA
Jiwen Cai - Cupertino CA

Assignee:

KC Technology, Inc. - Milpitas CA

International Classification:

G06F 104

US Classification:

713503

Abstract:

A phase locked loop is employed to provide a clock signal for controlling the reading or writing of audio data from or into a memory to avoid memory overflow and underrun. The difference between the write and read pointers is monitored and used for adjusting a divider counter used in the feedback loop of the phase locked loop, by incrementing, decrementing by one or leaving unchanged the value of the counter. The counter is used to divide the output of the phase locked loop to provide a reference signal to the phase locked loop. A reference frequency for reading the audio data may be set close to the writing speed by incrementing or decrementing the reading speed by fine adjustment steps until the reference frequency is reached. After the reference frequency is reached, the reading speed is changed between the reference frequency and a frequency one fine adjustment step away from the reference frequency so that the average reading speed is equal to the writing speed.

US Patent:

6461874, Oct 8, 2002

Filed:

Jan 26, 2000

Appl. No.:

09/491139

Inventors:

Wei-Chao Ni - Foxboro MA
Daniel W. Eustace - North Attleboro MA
Steve Chin-Shen Chang - Franklin MA

Assignee:

Bayer Corporation - East Walpole MA

International Classification:

G01N 33553

US Classification:

436526, 436531, 436534, 436810, 436548, 435 79, 435188, 435963, 435176, 435180, 427414, 427337, 427338, 427222, 427 2, 428403, 428407, 530815

Abstract:

It has been found that casein and salts of casein are useful as replacements for, or in addition to, BSA as materials for coating solid phases, particularly magnetic particles, used in immunoassays and other binding assays for separation of the desired analyte. By using casein, immunoassays having improved stability and fewer discordant samples have been developed. Casein used at a concentration of 0. 05-4. 0 grams per gram of paramagnetic particle (optimally approximately 0. 78-1. 2 grams of casein per gram of magnetic particle) has been found to confer this benefit.

US Patent:

6756234, Jun 29, 2004

Filed:

Dec 21, 2001

Appl. No.:

10/029541

Inventors:

Wei-Chao Ni - Foxboro MA
Daniel W. Eustace - North Attleboro MA
Steve Chin-Shen Chang - Franklin MA

Assignee:

Bayer Corporation - Tarrytown NY

International Classification:

G01N 33553

US Classification:

436526, 436531, 436534, 436810, 436548, 435 79, 435188, 435963, 435176, 435180, 427414, 427337, 427338, 427222, 427 2, 428403, 428407, 530815

Abstract:

It has been found that casein and salts of casein are useful as replacements for, or in addition to, BSA as materials for coating solid phases, particularly magnetic particles, used for immunoassays and other binding assays for separation of the desired analyte. By using casein, immunoassays having improved stability and few discordant samples have been developed. Casein used at a concentration of 0. 05-4. 0 grams per gram of paramagnetic particle (optimally approximately 0. 78-1. 2 grams of casein per gram of magnetic particle) has been found to confer this benefit. In addition, a process for coating solid phases has been invented, said process comprising the mixing of casein with magnetic particles at 30-60Â C. for 5-180 hours, said process resulting in casein-coated paramagnetic particles which either (1) already have combined therewith active ingredients needed in the binding assay or (2) are capable of reacting with active ingredients needed in the binding assay. Furthermore, a process for using the casein-coated paramagnetic particles have been developed, said particles being directly or indirectly combined with active ingredients used in the immunoassays.

US Patent:

7366810, Apr 29, 2008

Filed:

Nov 16, 2005

Appl. No.:

11/280544

Inventors:

Steve Chang - Fremont CA, US

Assignee:

Via Technologies, Inc. - Taipei

International Classification:

G06F 13/00

US Classification:

710116, 710117, 710244

Abstract:

A computing system includes one or more buses, a plurality of bus agents, and a chip set. The plurality of bus agents are capable of accessing at least one of the buses. The chipset arbitrates access to a bus for at least two of the bus agents such that utilization of the bus for each agent is changeable.

US Patent:

7668554, Feb 23, 2010

Filed:

Dec 16, 2005

Appl. No.:

11/303881

Inventors:

Steve Chang - San Jose CA, US

Assignee:

SiRF Technology, Inc. - San Jose CA

International Classification:

H04W 68/00

US Classification:

4554562, 34235706, 34053913

Abstract:

A network approach for aided GPS broadcast positioning where A-GPS data is made available in the network and broadcast via cell broadcast servers to wireless devices in order to reduce the time required to determine the position of a wireless device.

US Patent:

7719464, May 18, 2010

Filed:

Oct 30, 2006

Appl. No.:

11/589668

Inventors:

Ashutosh Pande - Noida, IN
Steve Chang - San Jose CA, US
Lars Boeryd - Rancho Santa Margarita CA, US

Assignee:

SiRF Technology, Inc. - San Jose CA

International Classification:

G01S 5/14

US Classification:

34235709, 34235715

Abstract:

A system and method for providing aiding information to a satellite positioning system (“SPS”) receiver. A digital satellite radio system satellite receives aiding information communicated from a positioning system. The digital satellite radio system broadcasts the aiding information in the data signals it broadcasts to its subscribers. The subscribers receive the aiding information at satellite radio receivers and communicate the aiding information to the SPS receiver. The data signals may also be communicated to terrestrial repeaters for re-broadcast at a higher power. The terrestrial repeaters may input a transmitter identifier to permit the satellite radio receiver to determine a geographical location of the terrestrial repeater as its own.

US Patent:

7727473, Jun 1, 2010

Filed:

Oct 17, 2006

Appl. No.:

11/582651

Inventors:

Jesus Ching - San Jose CA, US
David Hsiang Hu - Palo Alto CA, US
Steve Jia Chang Yu - San Jose CA, US
Phillip You Fai Lee - San Francisco CA, US

Assignee:

Progentech Limited

International Classification:

G01N 1/18
C12M 1/34

US Classification:

422 681, 422 63, 422100, 422101, 422102, 422104, 435 6, 4352872, 4352886, 4353061, 436 53

Abstract:

A cassette for preparing a sample is disclosed herein. The cassette includes a housing, which encloses the structures and the processes used to prepare the sample.

US Patent:

7752504, Jul 6, 2010

Filed:

May 31, 2007

Appl. No.:

11/756465

Inventors:

Steve Chen-Lin Chang - Cupertino CA, US
Ludwig Alexander Clemm - Los Gatos CA, US
Junekang Yang - Palo Alto CA, US
Jiabin Zhao - Saratoga CA, US
Shyyunn Sheran Lin - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 11/00

US Classification:

714 48

Abstract:

A network device and a method for monitoring operational messages is described. The method comprises monitoring an occurrence of an operational message of the network device, and storing dynamic context information at the time that the operational message occurred. The stored dynamic context information is then associated with the operational message. The operational message (e. g. , a syslog message) may be stored together with the dynamic context information in a metalog memory and may comprise a snapshot of a procedure stack, the procedure stack including information indicative of a sequence of procedure invocations.