Tony L Barrett

US Patent:

6782471, Aug 24, 2004

Filed:

Dec 1, 2000

Appl. No.:

09/728688

Inventors:

Tony Barrett - Boise ID

Assignee:

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

International Classification:

G06F 15177

US Classification:

713 1, 713320

Abstract:

A method in accordance with one embodiment of the present invention provides for monitoring a device for a disturbance so as to detect a disturbance, wherein the monitoring occurs while the device is in an inactive state. The method further includes taking a first set of actions if a disturbance is detected during the monitoring, and taking a second set of actions if a disturbance is not detected during the monitoring. The second set of actions decreases the consumption of consumables by the device as compared to the consumption of consumables which would have occurred if, instead, the first set of actions had been taken.

US Patent:

6795658, Sep 21, 2004

Filed:

Jun 5, 2002

Appl. No.:

10/164196

Inventors:

Tony Barrett - Boise ID

Assignee:

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

International Classification:

G03G 1500

US Classification:

399 9, 399 18, 399 21

Abstract:

A method and apparatus for halting a printer at a predetermined time to allow service personnel to open the printer and inspect the printing operation for evidence of faulty components and other problems. The printer includes a printing mechanism and a selector that is used for selecting a predetermined instant at which to halt the printer. A controller is coupled to the selector and to the printing mechanism. The controller operates to halt the printing operation at the selected predetermined instant. The instant can be measured in time, as an event that occurs in the printing process, or as a time relative to such an event. The instant can be selected from a list or selected at random by the operator. A sensing device within the printer can detect the determination of the occurrence of the printer operation event. The printing operation can be initiated in a conventional manner or the printing operation can be commenced automatically upon selection of the predetermined event.

US Patent:

6813450, Nov 2, 2004

Filed:

Jun 4, 2002

Appl. No.:

10/164132

Inventors:

Tony Barrett - Boise ID

Assignee:

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

International Classification:

G03G 1500

US Classification:

399 9, 399 18, 399 21

Abstract:

A method and apparatus for determining the cause of degradation in a product or device. A reference time is established and recorded, then a process or function of the device or product is enabled. As anomalous events occur, a user actuates an actuator that causes the recordation of an event time with respect to the reference time. Events may be repetitive or non-repetitive. At completion of the function, the recorded times are compared to a table of known product or device cycle function times, and a correlation is made to determine the most likely cycle function related to the events recorded. This information can then be correlated to parts previously known to operate at such times thereby providing a diagnostic tool useful in maintenance or repair of the device or product.

US Patent:

6985676, Jan 10, 2006

Filed:

Aug 30, 2004

Appl. No.:

10/930565

Inventors:

Tony Barrett - Boise ID, US

Assignee:

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

International Classification:

G03G 15/00

US Classification:

399 9, 399 11, 399 18

Abstract:

A method and apparatus for determining the cause of degradation in a product or device. A reference time is established and recorded, then a process or function of the device or product is enabled. As anomalous events occur, a user actuates an actuator that causes the recordation of an event time with respect to the reference time. Events may be repetitive or non-repetitive. At completion of the function, the recorded times are compared to a table of known product or device cycle function times, and a correlation is made to determine the most likely cycle function related to the events recorded. This information can then be correlated to parts previously known to operate at such times thereby providing a diagnostic tool useful in maintenance or repair of the device or product.

US Patent:

7541692, Jun 2, 2009

Filed:

Nov 26, 2002

Appl. No.:

10/304405

Inventors:

B. Mark Hirst - Boise ID, US
Tony Barrett - Boise ID, US

Assignee:

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

International Classification:

H02J 1/10
H02J 3/38
H02J 7/34

US Classification:

307 44, 307 46

Abstract:

Peripheral devices that have their own power sources. In one embodiment, a peripheral device comprises a processing device, memory, and a power circuit configured to supply power to a peripheral device component, the power circuit including a power source.

US Patent:

20030193684, Oct 16, 2003

Filed:

Apr 10, 2002

Appl. No.:

10/119650

Inventors:

David Kendall - Bosie ID, US
Tony Barrett - Boise ID, US

International Classification:

G06K015/02
G06F015/00
G06F011/30
H04N001/409

US Classification:

358/001140, 382/112000, 358/406000, 358/003260

Abstract:

A page reference system that facilitates identification of the locations of printing defects on a printed page includes a sheet of media with one or more reference points and, optionally, indicia printed thereon. The page reference system may be preprinted or printed along with another file. Accordingly, a page reference program that causes the page reference system to be printed onto a sheet is disclosed, as are systems that employ such a program. A method for using the page reference system includes printing a file onto a sheet of media onto which the page reference system is also printed, using the page reference system to identify the locations of one or more printing defects on the page, and diagnosing a printing device error responsible for each printing defect. The locations of one or more printing defects may be communicated to a product support representative, who then makes the diagnosis.

US Patent:

54831490, Jan 9, 1996

Filed:

Oct 28, 1993

Appl. No.:

8/144597

Inventors:

Tony Barrett - Boise ID

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G05F 502

US Classification:

323300

Abstract:

This present invention takes advantage of the understanding that the voltage rating associated with resistive heating element can be ignored over the common line voltage range, provided the power dissipation is controlled. This is accomplished by applying a fractional amount of power to a heating element from the power source. The method consists basically of determining, or estimating, a ratio of the amount to be applied to the amount of power available. A control signal is generated with a duty cycle approximately equal to that ratio. A zero crossing switch, under control of the control signal switches half cycles to the heating element. Thus, by applying a portion of the available half cycles to the heating element, the average power dissipation by the heating element can be controlled.

Author:

Tony Barrett

ISBN #:

0620174099