Phillip R Luque

US Patent:

6467977, Oct 22, 2002

Filed:

Dec 19, 2000

Appl. No.:

09/746638

Inventors:

Phillip R. Luque - Boise ID
Jeffrey S. Weaver - Ft. Collins CO

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

B41J 1120

US Classification:

400 56, 400636, 400624

Abstract:

This invention relates to a media weight sensor of the type that includes a transducer consisting of a metal disk with a piezoelectric element mounted in a printer so that the media going to the printer moves across the top of the resonator where an opening of the resonator is located. A soft, polymeric roller is used to press the media against the transducer. The resonant frequency of the resonator is affected by the media. The mass of the media adds to the mass of the resonator, thereby lowering the resonant frequency. Consequently, the heavier the media, the more the resonant frequency is lowered.

US Patent:

6485205, Nov 26, 2002

Filed:

Dec 19, 2000

Appl. No.:

09/746661

Inventors:

Phillip R. Luque - Boise ID

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

B41J 1120

US Classification:

400 56, 400624, 400156

Abstract:

This invention relates to a media weight sensor of the type that includes a transducer consisting of a metal desk with a piezoelectric element fabricated by one side which form the back of a Helmholtz resonator cavity mounted in a printer so that the media going to the printer moves across the top of the Helmholtz resonator where an opening of the resonator is located. A soft, polymeric roller is used to press for media and is the transducer. The resonant frequency of the Helmholtz is affected by the media. The mass of the media adds to the mass of the resonator, thereby lowering the resonant frequency. Consequently, the heavier than media, the more the resonant frequency is lowered.

US Patent:

6597877, Jul 22, 2003

Filed:

May 20, 2002

Appl. No.:

10/152231

Inventors:

Phillip R. Luque - Boise ID

Assignee:

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

International Classification:

G03G 1500

US Classification:

399 45, 399389

Abstract:

The present invention relates to an apparatus for use in detecting unacceptable input media, the apparatus including a contacting element configured to engage input media during a feed operation such that the contacting element may selectively adhere to unacceptable input media and move with such unacceptable input media during the feed operation. The apparatus also includes a sensor configured to identify displacement of the contacting element, such displacement being indicative of unacceptable input media.

US Patent:

6636704, Oct 21, 2003

Filed:

Nov 13, 2001

Appl. No.:

10/010801

Inventors:

Jeffrey S. Weaver - Fort Collins CO
David J. Luman - Meridian ID
Phillip R. Luque - Boise ID

Assignee:

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

International Classification:

G03G 1500

US Classification:

399 23, 399 45, 399393

Abstract:

The present invention provides an imaging system and method having a media stack component measuring system for identifying media characteristics. The imaging system includes a printer engine. A printer control system is in communication with the printer engine. A media holder is provided for holding a media stack including a plurality of sheets. A media stack component sensing system is provided which provides an output signal having a thickness component representative of sheet thickness of the sheets in the media stack.

US Patent:

6726357, Apr 27, 2004

Filed:

May 20, 2002

Appl. No.:

10/151412

Inventors:

Phillip R. Luque - Boise ID
Jeffrey S. Weaver - Ft. Collins CO

Assignee:

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

International Classification:

G01N 2500

US Classification:

374 45, 374179, 374153, 374120, 374137

Abstract:

The present invention involves identifying media type in a media processing device. A system according to one embodiment of the invention includes a thermal energy source and a thermal energy sensor. The thermal energy source and thermal energy sensor are arranged along a media feed path so as to accommodate transfer of thermal energy to the media by the thermal energy source, diffusion of such thermal energy, and subsequent sensing of such diffused thermal energy to determine a heat capacity of the media, such heat capacity being indicative of media type.

US Patent:

6823148, Nov 23, 2004

Filed:

Aug 15, 2003

Appl. No.:

10/641988

Inventors:

Jeffrey S. Weaver - Fort Collins CO
David J. Luman - Meridian ID
Phillip R. Luque - Boise ID

Assignee:

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

International Classification:

G03G 1500

US Classification:

399 23, 399 45, 399393

Abstract:

The present invention provides an imaging system and method having a media stack component measuring system for identifying media characteristics. The imaging system includes a printer engine. A printer control system is in communication with the printer engine. A media holder is provided for holding a media stack including a plurality of sheets. A media stack component sensing system is provided which provides an output signal having a thickness component representative of sheet thickness of the sheets in the media stack.

US Patent:

7091427, Aug 15, 2006

Filed:

Jan 28, 2003

Appl. No.:

10/353909

Inventors:

Phillip R. Luque - Boise ID, US
Robert E. Haines - Boise ID, US
Ben B. Tyson - Eagle ID, US
John W. Huffman - Meridian ID, US

Assignee:

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

International Classification:

G01L 1/00
G01G 9/00

US Classification:

177210FP, 73580, 271 315

Abstract:

A scale is provided, the scale including a cavity having a resonant frequency which is alterable with variations in mass of a load applied to the cavity. The scale also typically includes a comparator operatively coupled with the cavity to detect actual resonant frequency under the load, to compare such actual resonant frequency with a reference resonant frequency, and to produce a difference signal indicative of mass of the load.

US Patent:

7362320, Apr 22, 2008

Filed:

Jun 5, 2003

Appl. No.:

10/454934

Inventors:

David M. Payne - Star ID, US
John W. Huffman - Meridian ID, US
Phillip R. Luque - Boise ID, US
Tim M. Hoberock - Boise ID, US

Assignee:

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

International Classification:

G06F 3/038

US Classification:

345207, 345 82, 345173

Abstract:

Exemplary methods, apparatuses, media, and arrangements enable the implementation of one or more features in electronic devices that have (e. g. , display) screens that are capable of light emission and detection. These features include, for example, scanning, (simulated) touch-screen sensitivity, and ambient light determination and compensation. The display screens may be comprised of light emitting/detecting elements, such as diodes, that can emit light for visual display and can detect light for receiving light information data. In certain described implementations, a method for implementing a feature using a display screen with emitting/detecting elements includes the actions of: activating multiple elements of an array of elements to emit light; activating multiple elements of the array of elements to detect light; producing detected light data representing the light detected by the multiple elements that are activated to detect light; and processing the detected light data to implement the feature.