King Lau Phones & Addresses
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San Francisco, CA
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Daly City, CA
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San Mateo, CA
Public records
Vehicle Records
King Lau
View pageAddress:
269 Hale St, San Francisco, CA 94134
Phone:
(415) 469-8877
VIN:
5NPEB4AC4CH486805
Make:
HYUNDAI
Model:
SONATA
Year:
2012
Publications
Us Patents
Method For Establishing And Maintaining Radial Position For Hard Disk Drive Self Servo Write Without Seed Wedges
View pageUS Patent:
20070211367, Sep 13, 2007
Filed:
Apr 18, 2006
Appl. No.:
11/405871
Inventors:
King Lau - Santa Clara CA, US
Richard Wong - San Jose CA, US
Fatih Sarigoz - Milpitas CA, US
Ara Nazarian - Tustin CA, US
Richard Wong - San Jose CA, US
Fatih Sarigoz - Milpitas CA, US
Ara Nazarian - Tustin CA, US
Assignee:
Broadcom Corporation, a California Corporation - Irvine CA
International Classification:
G11B 21/02
G11B 5/09
G11B 5/09
US Classification:
360075000, 360051000
Abstract:
Magnetic reference patterns may be generated on a disk or other magnetic media without the need for seed wedges. This involves writing a first magnetic reference pattern to the disk with a servo writer. The disk may then be transferred to a hard disk drive. Control circuitry within the hard disk drive may recognize the first magnetic reference pattern and then position a RW head within the hard disk drive based on the first magnetic reference pattern. As the RW drive is accurately positioned based on the first magnetic reference pattern a second magnetic reference pattern may be written to the disk using the RW head. The RW head location is determined based on the velocity and phase between the read-write head and servo setter marks contained within the first magnetic reference pattern.
Read Write (Rw) Head Position Control For Self Servo Writing Process
View pageUS Patent:
20070070538, Mar 29, 2007
Filed:
Nov 8, 2005
Appl. No.:
11/269068
Inventors:
King Wai Lau - Santa Clara CA, US
Ara Nazarian - Tustin CA, US
Benjamin Ryu - Cupertino CA, US
Richard Wong - San Jose CA, US
Ara Nazarian - Tustin CA, US
Benjamin Ryu - Cupertino CA, US
Richard Wong - San Jose CA, US
International Classification:
G11B 5/02
US Classification:
360055000
Abstract:
The present invention provides a method of generating magnetic reference patterns on a disk or other magnetic media. This involves writing a first magnetic reference pattern to the disk with a servo writer. The disk may then be transferred to a hard disk drive. Control circuitry within the hard disk drive may recognize the first magnetic reference pattern and then position a RW head within the hard disk drive based on the first magnetic reference pattern. As the RW drive is accurately positioned based on the first magnetic reference pattern a second magnetic reference pattern may be written to the disk using the RW head. The RW head location is determined based on the velocity and phase between the read-write head and servo setter marks contained within the first magnetic reference pattern.