Peter M Howard

US Patent:

6964484, Nov 15, 2005

Filed:

Feb 2, 2004

Appl. No.:

10/770069

Inventors:

Anurag Gupta - Corvallis OR, US
Peter Guy Howard - Junction City OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G03B021/14
G03B021/28
G02B026/08

US Classification:

353 69, 353 81, 359207

Abstract:

A technique is described to reduce overfill of light that has exited a light integrating device and is applied to an optical modulator in the form of an illuminating pattern. The illumination reduction technique makes the illuminating pattern more closely conform to a active planar surface of the optical modulator by at least partially providing anamorphic magnification of the illuminating pattern.

US Patent:

7046419, May 16, 2006

Filed:

Aug 13, 2004

Appl. No.:

10/917653

Inventors:

Anurag Gupta - Corvallis OR, US
Peter Guy Howard - Junction City OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G02B 26/00

US Classification:

359290, 359298

Abstract:

A digital micromirror device arrangement and devices using the arrangement are disclosed. The arrangement includes a digital micromirror device (DMD) having an active area, a cover plate disposed substantially adjacent to the DMD and having a thickness and a light blocking area having an aperture formed therein. The active area is adapted to receive incoming light and to reflect the incoming light as outgoing light. The light-blocking layer is offset from a plane of the active area by at least the thickness of the cover plate and is adapted to block light from passing therethrough. The aperture is dimensioned to produce a beam of outgoing light having desired dimensions.

US Patent:

7059732, Jun 13, 2006

Filed:

Nov 26, 2003

Appl. No.:

10/723235

Inventors:

Glen A. Oross - Corvallis OR, US
Peter Guy Howard - Junction City OR, US
Michael A. Pate - Tuscon AZ, US
David L Smith - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G03B 21/14
G03B 21/30

US Classification:

353119

Abstract:

An image projection system is provided that includes a portable projector, where the projector includes a light engine, and a projector housing having a closed configuration and an open configuration, where in the closed configuration the projector housing at least partially encloses the light engine, and in the open configuration the projector housing supports the light engine.

US Patent:

7083289, Aug 1, 2006

Filed:

Jun 28, 2005

Appl. No.:

11/169603

Inventors:

Glen A. Oross - Corvallis OR, US
Peter Guy Howard - Junction City OR, US
Michael A. Pate - Tuscon AZ, US
David L Smith - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H04N 5/64
G03B 21/30

US Classification:

353119, 348788, 349 58

Abstract:

An image projection system is provided that includes a portable projector, where the projector includes a light engine, and a projector housing having a closed configuration and an open configuration, where in the closed configuration the projector housing at least partially encloses the light engine, and in the open configuration the projector housing supports the light engine.

US Patent:

7103896, Sep 5, 2006

Filed:

Jan 8, 2003

Appl. No.:

10/339705

Inventors:

Michael A Pate - Corvallis OR, US
Ronald A. Hellekson - Eugene OR, US
Peter Guy Howard - Junction City OR, US
Andrew Koll - Albany OR, US
Andrew L. Van Brocklin - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G11B 11/00

US Classification:

720718

Abstract:

An optical disc of one embodiment of the invention is disclosed that includes a first surface, a second surface, an optically writable label area, and an optically writable data area. The first and the second surfaces are oppositely situated to one another. The label area is on one of the first and the second surfaces. The data area is on one of the first and the second surfaces. The mechanism aids proper focusing of an optical beam of an optical disc device on the optically writable label area and on the optically writable data area.

US Patent:

7283181, Oct 16, 2007

Filed:

Mar 14, 2003

Appl. No.:

10/388713

Inventors:

William J. Allen - Corvallis OR, US
Brian S Dixon - Albany OR, US
Michael A Pate - Tuscon AZ, US
Peter Guy Howard - Junction City OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H04N 5/57
H04N 5/58
H04N 9/12
H04N 9/31
H04N 5/74
G02F 1/00
G03B 21/14

US Classification:

348744, 348602, 348742, 348759, 348760, 353 84

Abstract:

A display system is configured to produce a color image formed of a plurality of differently colored images and may include at least one light source that directs light along an optical path, and at least one filter having a given optical filter characteristic. The display system may be selectively operable in a first state in which the optical path does not pass through a first filter during production of the plurality of differently colored images to form a color image having a first optical characteristic, and in a second state in which the optical path passes through the first filter during production of the plurality of differently colored images to form a color image having a second optical characteristic different than the first optical characteristic.

US Patent:

7546031, Jun 9, 2009

Filed:

Sep 9, 2004

Appl. No.:

10/937716

Inventors:

Stephan Clark - Albany OR, US
Peter Guy Howard - Junction City OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G03B 21/14
G03B 21/22
G03B 21/00
F21L 4/00

US Classification:

396 84, 396119, 396121, 362186

Abstract:

A lamp bracket and illumination optics assembly interface including at least one bracket engaging member formed on the illumination optics; and a receiving member formed on the lamp bracket corresponding to the bracket engaging member such that the bracket engaging member is configured to be received at least partially within the receiving member in an overlapping configuration.

US Patent:

20040212546, Oct 28, 2004

Filed:

Apr 23, 2003

Appl. No.:

10/423365

Inventors:

Brian Dixon - Albany OR, US
Peter Howard - Junction City OR, US
David Ochs - Corvallis OR, US

International Classification:

G09G005/00

US Classification:

345/001100

Abstract:

A method for color management in a display system based on perception. A plurality of images may be displayed to a viewer using an additive display device. Each image of the plurality may have a different color adjustment and at least two colors. An input may be received from the viewer selecting an image of the plurality based on the viewer's color perception of such image relative to other images of the plurality. Subsequent images may be displayed according to the different color adjustment of the image selected.