Richard H WongCity Of Industry, CA

6377062, Apr 23, 2002

Mar 31, 2000

09/539361

Carlos Ramos - San Jose CA
Richard Wong - San Jose CA
Sidney Peng - Sunnyvale CA
David Collins - San Jose CA
David Baker - Hillsboro OR

Credence Systems Corporation - Fremont CA

G01R 3102

324758, 324754, 324760

A floating interface assembly provides signal paths between an integrated circuit (IC) test head and contact pads on a load board or probe card accessing an IC to be tested. Pogo pins or other contactors for contacting the contact pads are mounted on the interface assembly and linked to the test head by flexible conductors. The interface assembly is attached to the test head by springs to allow it the freedom to rotate to some extent about any axis. As the test head approaches the contact pads, alignment pins engage and orient the interface assembly so that its contactors will mate with the contact pads. As the contactors come into contact with the contact pads, the interface assembly adjusts the plane of the contactors so as to evenly distribute contact pressure over all contactor pads.

6529654, Mar 4, 2003

May 2, 2001

09/847868

Richard Koonwai Wong - San Jose CA
Edgar D. Sheh - San Jose CA
Jenghung Chen - Cupertino CA
Xiao Yang - Fremont CA
Michael Barrett Wolfson - San Jose CA

Nayna Networks, Inc. - Milpitas CA

G02B 626

385 16, 385 17, 385 18

A method for switching signals using one of a plurality of mirrors in an array structure. The method includes determining an optical path to be formed between an input fiber and an output fiber. The method also includes determining a set of mirrors to be used to form the optical path. The set of mirrors includes at least a first mirror. The first mirror is coupled to a mechanical spring assembly and an actuation assembly. The method captures an analog signal indicative of a spatial position of the first mirror using a position sensing device. The sensing device is coupled to the mirror. The method also converts the signal analog signal into a digital signal. The method processes the digital signal indicative of the spatial position of the mirror using the digital signal processing device to obtain a characteristic of the mirror. The method provides a control signal based upon the characteristic of the mirror. The converts the control signal into an analog control signal.

6614618, Sep 2, 2003

Mar 31, 2000

09/538931

Edgar D. Sheh - Cupertino CA
Thao P. Trieu - Redwood City CA
Ara W. Nazarian - Tustin CA
Richard K. Wong - San Jose CA

Western Digital Technologies, Inc. - Lake Forest CA

G11B 5596

360 7809

Disclosed is a disk drive having a plant with a moveable transducer and a servo controller that more precisely controls the transducer during short to medium seeks by producing a multi-rate feed-forward command effort signal. The servo controller includes a reference position generator that provides a reference position signal that varies as a function of time along a shaped position profile for moving the transducer from a start position to a target position in a smoothly controlled fashion, a feed-forward control path that receives the reference position signal and applies a feed-forward command effort signal at a feed-forward rate that is greater than the servo sampling rate to move the actuator more closely along the shaped position profile between servo samples; and a feedback control path that receives the reference position signal and the indicated position signal and applies a feedback command effort signal at the servo sampling rate based on a difference between the reference position signal and the indicated position signal to make minor corrections to error remaining after application of prior feed-forward command effort signals.

D489507, May 4, 2004

Dec 23, 2002

29/173261

Richard Duk Wong Hahn - Diamond Bar CA, 91765

1202

D34 25, D15141

6935641, Aug 30, 2005

Apr 3, 2003

10/406932

Richard Duk Wong Hahn - Diamond Bar CA, US

B62B001/00

280 4719

The portable toolbox has a top, bottom, front and rear panels forming a box structure with opposing sides tilted off-vertical so as to converge upwardly. A plurality of hinged drawers and fixed bins are arranged on each side of the toolbox. The rear panel terminates at a pair of supporting feet for resting the apparatus on a supporting surface and a pair of wheels for moving the toolbox. By lifting the toolbox from its forward end, the toolbox moves from resting on its rear legs, to resting on its rear wheels. The top panel provides an upwardly facing work surface with a pair of hand holes separated by a hand grip for carrying the apparatus. A forward and a rearward sliding retractable work surface extender frames are positionable between a retracted position, secured within the box structure and an extended position directed outwardly from the box structure for resting a workpiece.

7312943, Dec 25, 2007

Nov 8, 2005

11/269068

King Wai Thomas Lau - Santa Clara CA, US
Ara W. Nazarian - Tustin CA, US
Benjamin Geunbae Ryu - Cupertino CA, US
Richard Koonwai Wong - San Jose CA, US

Broadcom Corporation - Irvine CA

G11B 21/02

360 75, 360 52

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.

7433148, Oct 7, 2008

Apr 2, 2007

11/695135

Richard Koonwai Wong - San Jose CA, US

Broadcom Corporation - Irvine CA

G11B 5/596

360 7704

Embodiments of the present invention significantly reduce the number and complexity of processing operations to be performed. This is done by receiving the learned run out or vector A to be rotated by phase q. This phase q may be limited to a π/4 resolution. Sine function values and cosine function values based on q are selected from a group of values comprising −1, 0, and +1. The sine function values and cosine function values selected may then be applied to the learned run out or vector A to rotate the vector A by phase q. Because the sine and cosine values are limited to −1, 0 and +1 many multiplication processing operations are eliminated. This greatly simplifies the processing requirements associated with phase rotating of this learned run out.

7471481, Dec 30, 2008

Apr 18, 2006

11/405871

King Wai Thomas Lau - Santa Clara CA, US
Richard Koonwai Wong - San Jose CA, US
Fatih Sarigoz - Milpitas CA, US
Ara W. Nazarian - Tustin CA, US

Broadcom Corporation - Irvine CA

G11B 21/02
G11B 5/09

360 75, 360 51

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 spiral sync marks contained within the first magnetic reference pattern.