Michael K Chang

8576506, Nov 5, 2013

Jun 21, 2012

13/529817

Honge Wang - Irvine CA, US
Michael Chang - San Jose CA, US
Abhishek Dhanda - San Jose CA, US
Huanxiang Ruan - Irvine CA, US
Guoxiao Guo - Irvine CA, US

Western Digital Technologies, Inc. - Irvine CA

G11B 5/09

360 50, 360 51, 360 39, 360 7708

A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of servo sectors defining a plurality of servo tracks. The servo tracks form a plurality of servo zones. A disk locked clock is synchronized relative to a servo data rate of the servo zone the head is over. A first reader/writer gap is measured in cycles of the disk locked clock at a first servo track in the first servo zone. A second reader/writer gap is measured in cycles of the disk locked clock at a second servo track in the second servo zone. The first and second reader/writer gaps are normalized to generate a normalized first and second reader/writer gaps. A third reader/writer gap is estimated in cycles of the disk locked clock at a third servo track in the second servo zone based on the normalized first and second reader/writer gaps.

20040043682, Mar 4, 2004

Sep 4, 2002

10/236053

Steven Taylor - Glendora CA, US
Mark Longfellow - Foothill Ranch CA, US
Norman Tracy - Huntington Beach CA, US
Robert Henderson - Tustin CA, US
Michael Chang - Irvine CA, US
Roland Weber - Rancho Palos Verdes CA, US

B32B027/12
B32B013/02
B32B013/14
B32B005/02
B32B027/04

442/042000, 442/043000, 442/045000, 442/049000

A composite board for use as backerboard for tile, the board including a mesh layer with a mesh fabric, a mat layer with a mat fabric and a polystyrene layer disposed between the two portions where a non-shrinking cement compound saturates and connects the two outer portions with the polystyrene substrate. The composite board's mesh layer incorporates a stretchable mesh which in conjunction with the polystyrene substrate and the non-shrinking cement compound supports standard fasteners used in the home-building industry along with providing a suitable tile adhesion surface. The mat layer incorporates a fiberglass mat which provides high rigidity as well as being suitable for contact with an inner wall or studs. The combination of materials provides a backerboard that is light weight, rigid, economical and easy to build with.

20060183387, Aug 17, 2006

Dec 14, 2005

11/304987

Steven Taylor - Glendora CA, US
Mark Longfellow - Foothill Ranch CA, US
Norman Tracy - Huntington Beach CA, US
Robert Henderson - Tustin CA, US
Michael Chang - Irvine CA, US
Roland Weber - Rancho Palos Verdes CA, US

B32B 5/24

442030000, 442035000, 442042000, 442043000, 442045000, 442046000, 442048000, 442049000, 442164000, 442180000, 428304400, 428318400, 442370000, 442221000

A composite board for use as backerboard for tile includes outer reinforcement portions and a polystyrene layer disposed between the two outer reinforcement portions, at least one of the outer reinforcement portions being an outer mat fabric reinforcement layer with a mat fabric, and a non-shrinking cement compound saturating and connecting the two outer portions with the polystyrene substrate. A method of installing a composite tile backerboard involves placing the composite board against a fixture protruding from a flat surface, pressing the composite board against the fixture to emboss the features of the fixture on the surface of the composite board, and cutting a hole in the composite board based upon the features of the fixture embossed on the composite board.

20130271775, Oct 17, 2013

Apr 11, 2012

13/444599

Michael M. Chang - Redondo Beach CA, US

KYOCERA DOCUMENT SOLUTIONS INC. - Osaka

H04N 1/60
G06K 15/02

358 19

Methods and systems for accommodating color ranges are provided. A source light-to-dark dynamic range of a first output medium may be obtained with a source white point and a source black point. A destination light-to-dark dynamic range of a second output medium may be obtained with a destination white point and a destination black point. A white point mapping and a black point mapping may be determined. Based on a first representation of an image on the first output medium, a second representation of the image may be created by interpolating the source light-to-dark dynamic range to the destination light-to-dark dynamic range based on the white point mapping and the black point mapping. A computing device may cause the second output medium to produce the representation of the image.

20210297406, Sep 23, 2021

Oct 4, 2016

15/284947

- San Francisco CA, US
Abhijit Rao - Irvine CA, US
Byron G. Chun - Daly City CA, US
Samuel B. Martin - San Francisco CA, US
Michael H. Chang - Millbrae CA, US
Traci H. Nguyen - San Francisco CA, US
Douglas S. Pelton - Richmond CA, US

H04L 29/06

A system includes at least one hardware processor in communication with a first computing device of a suspect party and a second computing device of an inquiring party, the suspect party being targeted for trust evaluation by the inquiring party, and a memory storing instructions that, when executed by the at least one hardware processor, cause the at least one hardware processor to perform operations. The operations include receiving, from the second computing device, a request to perform a trust evaluation of the suspect party, the request including a permission token, identifying the suspect party based on the permission token, generating a trust result for the suspect party based on financial data associated with the suspect party, the trust result indicating an assessed level of trustworthiness of the suspect party, and transmitting the trust result to the second computing device for display to the inquiring party.

20180302532, Oct 18, 2018

Jun 26, 2018

16/018453

- Osaka, JP
Michael M. Chang - El Segundo CA, US
Dongpei Su - El Segundo CA, US
Kenneth A. Schmidt - El Segundo CA, US

H04N 1/40
H04N 1/00
H04N 1/32
H04N 1/405

An example embodiment may involve causing a page of a document to be printed on a printing device, wherein the printing device is in an AM halftoning mode and prints the page using an AM halftone; displaying, on the display unit, a graphical user interface, wherein the graphical user interface includes a selectable option to switch the printing device from the AM halftoning mode to an FM halftoning mode; receiving an indication that the selectable option has been selected; possibly in response to receiving the indication that the selectable option has been selected, causing the printing device to switch from the AM halftoning mode to the FM halftoning mode; and causing the page of the document to be printed again on the printing device, wherein the printing device is in the FM halftoning mode and prints the page using an FM halftone.

20180084151, Mar 22, 2018

Aug 1, 2017

15/665706

- Osaka, JP
Michael M. Chang - El Segundo CA, US
Dongpei Su - El Segundo CA, US
Kenneth A. Schmidt - El Segundo CA, US

H04N 1/40
H04N 1/405
H04N 1/32
H04N 1/00

An example embodiment may involve causing a page of a document to be printed on a printing device, wherein the printing device is in an AM halftoning mode and prints the page using an AM halftone; displaying, on the display unit, a graphical user interface, wherein the graphical user interface includes a selectable option to switch the printing device from the AM halftoning mode to an FM halftoning mode; receiving an indication that the selectable option has been selected; possibly in response to receiving the indication that the selectable option has been selected, causing the printing device to switch from the AM halftoning mode to the FM halftoning mode; and causing the page of the document to be printed again on the printing device, wherein the printing device is in the FM halftoning mode and prints the page using an FM halftone.

20140268194, Sep 18, 2014

Feb 14, 2014

14/180583

- Osaka, JP
Michael M. Chang - El Segundo CA, US

KYOCERA Document Solutions Inc. - Osaka

G06K 15/02

358 19

A method for determining a color profile from received raster data and printing the raster data is provided. Color profiles provide a mapping from a color space of the raster data to a color space of the printer, which typically uses CMYK toner or ink. A text color profile may be employed to print crisper text, or a photo color profile may be employed to produce better images. The raster data includes a plurality of raster scan lines containing digital pixel values. The method includes determining a number of sequentially repeated digital pixel values and a number of sequentially non-repeated digital pixel values for the plurality of raster scan lines. A color profile is selected based on a determination between the repeated and non-repeated digital pixel values. An example image forming apparatus that may carry out the method is also provided.