William Desmond Powers

US Patent:

7976163, Jul 12, 2011

Filed:

Jun 27, 2007

Appl. No.:

11/769054

Inventors:

Charles E. Campbell - Berkeley CA, US
Stephen W. Farrer - Albuquerque NM, US
Daniel R. Neal - Tijeras NM, US
William S. Powers - Albuquerque NM, US
Thomas D. Raymond - Edgewood NM, US

Assignee:

AMO Wavefront Sciences LLC - Santa Ana CA

International Classification:

A61B 3/107

US Classification:

351212

Abstract:

A system measures a corneal topography of an eye. The system includes a group of first light sources arranged around a central axis, the group being separated from the axis by a radial distance defining an aperture in the group; a plurality of second light sources; a detector array; and an optical system adapted to provide light from the second light sources through the aperture to a cornea of an eye, and to provide images of the first light sources and images of the second light sources from the cornea, through the aperture, to the detector array. The optical system includes an optical element having a focal length, f. The second light sources are disposed to be in an optical path approximately one focal length, f, away from the optical element.

US Patent:

7988290, Aug 2, 2011

Filed:

Dec 31, 2008

Appl. No.:

12/347909

Inventors:

Charles E. Campbell - Berkeley CA, US
Stephen W. Farrer - Albuquerque NM, US
Daniel R. Neal - Tijeras NM, US
William S. Powers - Albuquerque NM, US
Thomas D. Raymond - Edgewood NM, US
James Copland - Albuquerque NM, US

Assignee:

AMO Wavefront Sciences LLC. - Santa Ana CA

International Classification:

A61B 3/10

US Classification:

351212

Abstract:

A system for determining the shape of an object and/or a distance of the object from the system includes a first plurality of light source, a second plurality of light sources, and a detector or detector array. The first plurality of light sources are disposed about a central axis and are separated from the central axis by radial distances defining an aperture in the first plurality of light sources. The system also includes an optical system adapted to provide light from the second plurality of light sources through the aperture to the object. The system may further include a computer configured to determine the shape of the object and/or the distance of the object from the system using light from the first and second plurality of light sources that is reflected from the object and received by the detector.

US Patent:

20080103962, May 1, 2008

Filed:

Oct 25, 2006

Appl. No.:

11/586461

Inventors:

Ira Cohen - Sunnyvale CA, US
William R. Powers - San Francisco CA, US
Anish P. Joseph - Bangalore, IN
En C. Lee - Bangalore, IN

International Classification:

G07F 19/00
G06Q 40/00
G07B 17/00

US Classification:

705 38, 705 35, 705 30

Abstract:

A method for ranking a plurality of systems based on their susceptibility to a selected risk that is determined from a plurality of risk indicators, is described herein. The method includes obtaining benchmark values for at least one benchmark system with a predetermined level of the predetermined risk; obtaining measured risk indicator values of the predetermined plurality of risk indicators in each of the plurality of systems, the predetermined plurality of risk indicators are the same in all of the plurality of systems; comparing the measured risk indicator values of each of the plurality of systems with the benchmark values of the at least one benchmark system; and ranking the plurality of systems based on the comparing to indicate the susceptibility of each of the plurality of systems to the predetermined risk.

US Patent:

20140092009, Apr 3, 2014

Filed:

Oct 16, 2013

Appl. No.:

14/055594

Inventors:

- Cupertino CA, US
Ian Wright - Sunnyvale CA, US
Xiaoyuan Tu - Sunnyvale CA, US
Stuart Reynolds - San Francisco CA, US
William Robert Powers - San Francisco CA, US
Charles Musick - Vernon CT, US
John Funge - Sunnyvale CA, US
Daniel Dobson - Atherton CA, US
Curt Bererton - San Francisco CA, US

Assignee:

AiLive Inc. - Cupertino CA

International Classification:

G06F 3/01

US Classification:

345156

Abstract:

A video gaming system includes a wireless controller that senses linear and angular acceleration to calculate paths of controller movement over a broad range of controller motion. The system also includes an electromagnetic alignment element, such as a set of LEDS. The controller includes an additional sensor to sense light from the LEDs over a relatively restricted range of controller motion, and use this sensed light to dynamically calibrate the controller when the controller passes through the restricted range of motion over which the sensor senses the light.

Author:

William Powers

ISBN #:

0139699562

Author:

William Powers

ISBN #:

0314035117

Author:

William Powers

ISBN #:

0314146156

Author:

William Powers

ISBN #:

0314161236

Author:

William Powers

ISBN #:

0314364412

Author:

William Powers

ISBN #:

0314507094

Author:

William L. Powers

ISBN #:

0471488755

Author:

William E. Powers

ISBN #:

0898387655