David Lance Boyd

US Patent:

6621600, Sep 16, 2003

Filed:

Jul 12, 2000

Appl. No.:

09/614579

Inventors:

David W Boyd - Greeley CO
Kevin J Youngers - Greeley CO

Assignee:

Hewlett-Packard Development Company, LP. - Houston TX

International Classification:

H04N 104

US Classification:

358474, 358471, 348203, 348167

Abstract:

A scanner is provided with a variable aperture lens system. High resolution scans use a relatively small aperture size, and scanning speed is relatively slow. Low resolution scans use a relatively large aperture size, and scanning speed is increased. Fast scans are limited to lower sampling rates, which in turn permit more optical blurring relative to high sampling rates. Accordingly, the incremental cost of the larger aperture is minimized by permitting the lens aberrations specifications to be relaxed at larger apertures. Preferably, an electronic variable aperture is provided, for example, by use of electronically controlled polarization plates or by use of electrochromic substances.

US Patent:

6678070, Jan 13, 2004

Filed:

Jan 26, 2000

Appl. No.:

09/491957

Inventors:

Mark D Seaman - Greeley CO
K Douglas Gennetten - Ft Collins CO
Paul M Hubel - Mt View CA
David W Boyd - Greeley CO

Assignee:

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

International Classification:

G06K 1502

US Classification:

358 118, 358449, 358453, 382286, 382291, 382283, 707518, 707520

Abstract:

The present invention is a system that coordinates the printing of a page of photos that match the layout of a pre-existing matte. The matte layout can be created from a physical matte. When creating an electronic layout or template from a physical matte, a digital image of the matte and a reference target is created. The template can then be created by using the relationship in the digital image between the image of the reference target and the image of the physical matte.

US Patent:

6752525, Jun 22, 2004

Filed:

Sep 26, 2000

Appl. No.:

09/670467

Inventors:

Thomas W Holmquist - Fort Collins CO
Ron L. King - Loveland CO
Dean J. Geilenkirchen - Windsor CO
John T. Meredith - Greeley CO
Walter M. Wang - Greeley CO
David W Boyd - Greeley CO

Assignee:

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

International Classification:

F21V 704

US Classification:

362551, 362581, 362335, 362188

Abstract:

An autochanger has a plurality of media holding bays to hold media pieces. A light emitter and light receiver are placed within the autochanger to establish a light path adjacent the media holding bays. When the light path is disrupted an indication is provided that a media piece is dislodged from its media holding bay. The light emitter has a tube with a light source located adjacent an input end of the tube and a lens located adjacent an output end of the tube. The input end of the tube has a relatively small aperture to limit light passing into the tube and to the lens. The light emitter serves to provide pseudo-collimated light that illuminates a specific light receiver.

US Patent:

6756749, Jun 29, 2004

Filed:

Jan 23, 2002

Appl. No.:

10/057342

Inventors:

William Robert Haas - Fort Collins CO
Kirk Tecu - Greeley CO
David W. Boyd - Greeley CO

Assignee:

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

International Classification:

H02P 154

US Classification:

318 34, 318685, 318625, 318732, 318254, 318139

Abstract:

A motion control system comprises both a stepper motor and a DC motor. The motors are coupled, and may be operated independently or in concert for various scan types. The stepper motor may be used as an encoder for measuring the position of the mechanism.

US Patent:

6760491, Jul 6, 2004

Filed:

Dec 6, 2000

Appl. No.:

09/731518

Inventors:

Peter J Lange - Windsor CO
David W Boyd - Greeley CO

Assignee:

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

International Classification:

G06K 920

US Classification:

382321, 358474, 358509

Abstract:

By scanning both sides of a photographic print, data from the back of the print may be associated with the image. If the backside data includes text, optical character recognition (OCR) techniques optionally may be used to convert the image of the back of the photo into text that may be included in a database or other data structure allowing the text to be associated with the photographic image. This allows the user to quickly and easily search a large database of images for either a specific image or a group of images according to some set of search criteria.

US Patent:

6788437, Sep 7, 2004

Filed:

Oct 31, 2000

Appl. No.:

09/703940

Inventors:

David W Boyd - Greeley CO

Assignee:

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

International Classification:

H04N 104

US Classification:

358475, 358487, 358474, 382317

Abstract:

An image capture device, such as a scanner, is built including hardware necessary to capture both reflective and transmissive image data from a transparency. The device may associate the two types of data internally or rely on other hardware, such as a controlling computer, to do the association of the two quantities of data. In one possible embodiment, the device would include the ability to perform optical character recognition (OCR) of the reflective data (or the transmissive data, if desired), converting to a type of text format any printing on the transparency.

US Patent:

6796666, Sep 28, 2004

Filed:

Oct 17, 1996

Appl. No.:

08/733291

Inventors:

Stephen J. Cook - Loveland CO
David W. Boyd - Greeley CO

Assignee:

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

International Classification:

G02B 7182

US Classification:

359871, 359872, 359873, 359881

Abstract:

An apparatus for mounting an object precisely in a specific plane. An object is mounted on small support points rather than flat pads or other flat surfaces. The support points are stiff but not completely rigid. Exactly four support points are used. Mechanical forces are sufficient to slightly compress the two higher support points on a diagonal and to slightly compress the object so that the object presses against all the support points, with a higher amount of compression for one pair of diagonal points relative to the other two points. In an example embodiment, the support points are formed at the intersection of curved surfaces or at the intersection of multiple planar surfaces. In a specific example embodiment, the points are formed at the intersection of cylindrical surfaces. The points are fabricated by a cylindrical cutting bit that has partial-cylinder grooves formed circumferentially in the bit. The outer surface of the bit is used to mill two intersecting planes, and the grooves result in cylindrical surfaces intersecting at the same angle as the intersecting planes.

US Patent:

6916112, Jul 12, 2005

Filed:

Jul 2, 2003

Appl. No.:

10/612865

Inventors:

Thomas W Holmquist - Fort Collins CO, US
Ron L. King - Loveland CO, US
Dean J. Geilenkirchen - Windsor CO, US
John T. Meredith - Greeley CO, US
Walter M. Wang - Greeley CO, US
David W Boyd - Greeley CO, US

Assignee:

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

International Classification:

F21V007/04

US Classification:

362551, 362581, 362335, 362188, 362377

Abstract:

A light emitter is disclosed herein. An embodiment of the light emitter comprises a tube, a first aperture, a second aperture, a lens, a base mechanism, and a light path. The tube has a first end and a second end. The first aperture is located proximate the tube first end and the second aperture is located proximate the tube second end. The lens is located within the tube. The base mechanism is attached to the tube first end and has a cavity formed therein. The light path extends between the cavity and the second aperture and passes through the first aperture and through the lens.