Chih Wei Liu

US Patent:

7118488, Oct 10, 2006

Filed:

Jan 21, 2005

Appl. No.:

11/040422

Inventors:

Benny Chan - Fremont CA, US
Suganda Jutamulia - Berkeley CA, US
Chih Yen Liu - Saratoga CA, US

Assignee:

Newtonics Spectra Inc. - Fremont CA

International Classification:

A63B 69/36

US Classification:

473220, 473119

Abstract:

A training putter with a laser line projecting device can be used for putting training to improve putting skill. The device is affixed to a putter head above its sweet spot, and emits a vertical light fan which projects a line on the around normal to the face of the putter head. The line is aligned with the sweet spot of the putter head and lies on the ground to connect the top of a golf ball with a target, such as a cup or a putting hole, so that alignment can be easily visualized. The device can be detached and reattached easily without any laser alignment. Furthermore, the device can be removably mounted to a user's own putter. The heat generated in the laser diode is quickly dissipated through the metal housing, the metal putter head, and the metal shaft to the surrounding air. Since proper operating temperature of the laser diode can be maintained, the laser diode will operate properly, which means the power of the emitted light will not be decreased, and the lifetime of the diode will not be shortened.

US Patent:

20140043519, Feb 13, 2014

Filed:

Aug 10, 2012

Appl. No.:

13/571395

Inventors:

Eddie Azuma - San Jose CA, US
Chih Yen Liu - San Jose CA, US
Josh Tsai - San Jose CA, US
Emerson Yu - San Jose CA, US
David Hsieh - San Jose CA, US

Assignee:

DigitalOptics Corporation - San Jose CA

International Classification:

G03B 3/10
G02B 7/09

US Classification:

348345, 359823, 359824

Abstract:

A compact camera module has an EMI housing configured to shield camera module components from electromagnetic interference and having defined therein a focus-adjustment aperture to permit an optical train to extend to at one end of an auto-focus range, and a light leak baffle partially overlaps the focus-adjustment aperture along the optical path outside the auto-focus range.

US Patent:

20140043524, Feb 13, 2014

Filed:

Aug 10, 2012

Appl. No.:

13/571397

Inventors:

Eddie Azuma - San Jose CA, US
Chih Yen Liu - San Jose CA, US
Emerson Yu - San Jose CA, US
David Hsieh - San Jose CA, US

Assignee:

DigitalOptics Corporation - San Jose CA

International Classification:

H04N 5/232
G03B 3/10

US Classification:

348357, 348345

Abstract:

A compact camera module includes a housing with an interior framework or separate interior bracket that has a conductive trace that runs along one or more surfaces thereof and electrically connects a lens actuator to a printed circuit to carry auto-focus control signals to the lens actuator from the printed circuit.

US Patent:

20140043525, Feb 13, 2014

Filed:

Aug 10, 2012

Appl. No.:

13/571405

Inventors:

Eddie Azuma - San Jose CA, US
Chih Yen Liu - San Jose CA, US
Emerson Yu - San Jose CA, US
David Hsieh - San Jose CA, US
Josh Tsai - San Jose CA, US
Peter Pietrangelo - San Jose CA, US

International Classification:

H04N 5/232

US Classification:

348357

Abstract:

A compact camera module is coupled at an image sensor end to a flexible printed circuit (FPC) and an FPC extension segment and is configured such that, upon folding the FPC onto the housing, one or more electrical contact pads disposed on the subject side of the optical train are coupled electrically with contact pads on the FPC extension segment from which MEMS actuator control signals are transmittable directly from the FPC to the MEMS lens actuator.

US Patent:

20140052966, Feb 20, 2014

Filed:

Aug 14, 2012

Appl. No.:

13/585348

Inventors:

Ali Vahidsafa - Palo Alto CA, US
Chih Heng Liu - Sunnyvale CA, US

International Classification:

G06F 9/30

US Classification:

712220, 712E09016

Abstract:

Mechanism for consistent core hang detection on a processor with multiple processor cores, each having one or more instruction execution pipelines. Each core may also include a hang detection unit with a counter unit that may generate a count value based on a clock source having a frequency that is independent of a frequency of a processor core clock. The hang detection unit may also include a detector logic unit that may determine whether a given instruction execution pipeline has ceased processing a given instruction based upon a state of the processor core and whether or not the given instruction has completed execution prior to the count value exceeding a predetermined value.

US Patent:

42081378, Jun 17, 1980

Filed:

Jan 16, 1978

Appl. No.:

5/869890

Inventors:

Chih H. Liu - San Jose CA

Assignee:

NCR Corporation - Dayton OH

International Classification:

B41J 312
B41J 1914

US Classification:

400124

Abstract:

An alternating current coupled dot column sensing circuit provides delayed dot position signals for control logic of a matrix printer to actuate the printing elements at the proper dot column positions in bi-directional printing. A sensor recognizes edges of slots in a timing strip across the printer and also recognizes end or home positions of the strip for use in such printing.