Dan R Poole

US Patent:

6789026, Sep 7, 2004

Filed:

May 2, 2003

Appl. No.:

10/428689

Inventors:

Evgenij Barsoukov - Dallas TX
Dan R. Poole - Austin TX
David L. Freeman - McKinley TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G01R 3136

US Classification:

702 63, 320104, 320132, 324427, 324428

Abstract:

A processor ( ) operates to determine amount of charge presently stored in a battery by determining that the battery is in a zero-current relaxed condition. Circuitry ( ) including a first ADC ( ) measures an open circuit voltage (OCV) of the battery prior to a period of time during which flow of current through the battery is not negligible. A program executed by the processor correlates the measured open circuit voltage (OCV ) with a corresponding value of the variable and selects the corresponding value as a value of the variable.

US Patent:

6832171, Dec 14, 2004

Filed:

May 2, 2003

Appl. No.:

10/428659

Inventors:

Evgenij Barsoukov - Dallas TX
Dan R. Poole - Austin TX
David L. Freeman - McKinley TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G01R 2500

US Classification:

702 65, 320132

Abstract:

An internal impedance of a battery ( ) is automatically determined by operating a processor ( ) to analyze current flowing through the battery to determine if a transient condition due to change of current is occurring and determining when the transient condition has ended. A voltage of the battery is measured while a steady current is being supplied by the battery. The present depth of discharge (DOD) of the battery is determined and a database is accessed to determine a corresponding value of open circuit voltage. The internal impedance is computed by dividing the difference between the measured voltage of the battery and the open circuit voltage at the present DOD by an average value of the steady current. A remaining run-time of the battery can be determined using a total zero-current capacity of the battery, integrating the current to determine a net transfer of charge from the battery, determining a value of total run-time that would be required to reduce the voltage of the battery to a predetermined lower limit, determining the duration of the integrating, and determining the remaining run-time by subtracting the duration of the integrating from the total run-time.

US Patent:

6892148, May 10, 2005

Filed:

May 2, 2003

Appl. No.:

10/428704

Inventors:

Evgenij Barsoukov - Dallas TX, US
Dan R. Poole - Austin TX, US
David L. Freeman - McKinley TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G01R031/36

US Classification:

702 63, 320132, 324427, 702 65

Abstract:

The remaining run-time (t_rem) of a battery is determined independently of the condition of the battery and the amount of load on the battery by obtaining the value of a present total zero-current capacity (Qmax) of the battery based on relaxed-battery OCV values measured just before and just after a charging or discharging cycle. A current through the battery is integrated to determine a transfer of charge (Q) from the battery, and a value of total run-time (t_total) that would be required to reduce the open circuit voltage of the battery to a predetermined lower limit (Vmin) is determined. The remaining run-time (t_rem) is determined by subtracting the duration of the integrating from the total run-time (t_total).

US Patent:

7443140, Oct 28, 2008

Filed:

Jan 11, 2006

Appl. No.:

11/329799

Inventors:

Yevgen Barsukov - Richardson TX, US
Dan Russell Poole - Austin TX, US
Jinrong Qian - Plano TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H02J 7/00

US Classification:

320136, 320135, 324427

Abstract:

A method for terminating battery discharge to avoid battery damage and maximize battery usage includes the steps of: (a) determining battery capacity; (b) storing a capacity result of the capacity determining; (c) determining battery voltage; (d) during a monitored battery operation, integrating battery current flow over a time interval to determine an integrated charge value at an end-of-interval-time; (e) determining an extant depth of discharge at the end-of-interval-time; (f) if the extant depth of discharge is neither within a first range of a maximum depth of discharge nor the battery voltage is within a second range of a minimum battery voltage, carrying out steps (d) through (f); (h) if the extant depth of discharge is within the first range of the maximum depth of discharge or if the battery voltage is within the second range of the minimum battery voltage, terminating the monitored battery operation.

US Patent:

20010016677, Aug 23, 2001

Filed:

Feb 16, 1999

Appl. No.:

09/250454

Inventors:

DAN RUSSELL POOLE - AUSTIN TX, US
ALVIN JOHN SEGARS - FORTH WORTH TX, US

International Classification:

A61G011/00

US Classification:

600/022000

Abstract:

An incubator is described which uses a thermoelectric cooler (TEC) as a heat pump in order to provide a stable temperature environment in the infant chamber. Use of a TEC allows a preselected temperature to be maintained in a large range of ambient temperatures during transport, with improved operating efficiency.

US Patent:

48887102, Dec 19, 1989

Filed:

Dec 11, 1987

Appl. No.:

7/131984

Inventors:

John C. Venthem - Georgetown TX
James A. Parnell - Austin TX
Mark Hill - Austin TX
Dan R. Poole - Austin TX

Assignee:

Ametek, Inc. - Austin TX

International Classification:

G06K 500
G01D 1800

US Classification:

364520

Abstract:

Apparatus, for use in conjunction with a digital plotter incorporating controlled multiple markers to create displays, for determining the position of the markers along axes of movement, comprises a detector assembly disposed at a fixed axial position relative to the plotter, and a driver for moving a marker relative to the detector assembly. The detector assembly includes means for detecting movement of the marker relative thereto and producing signals indicative of the movement. A processor interprets the signals for determining an axial position of the marker and optionally detects and compensates for a variation in the axial position of a current marker relative to the axial position of a prior marker.

US Patent:

49282565, May 22, 1990

Filed:

Mar 16, 1988

Appl. No.:

7/168984

Inventors:

James A. Parnell - Austin TX
Dan R. Poole - Austin TX

Assignee:

Ametek, Inc. - New York NY

International Classification:

G08C 2100
G01B 714
G01B 730

US Classification:

364561

Abstract:

Apparatus and method for determining position, tilt and offset of a pointer with respect to a grid of parallel conductors with which it is coupled by obtaining measured responses between each of a group conductors and the pointer and fitting an expression for the response to said measured responses.

US Patent:

53837339, Jan 24, 1995

Filed:

Mar 19, 1993

Appl. No.:

8/033876

Inventors:

Charles D. Zinsmeyer - Austin TX
James A. Parnell - Austin TX
Dan R. Poole - Austin TX
Carl D. Massey - Nashville TN

Assignee:

Summagraphics Corporation - Austin TX

International Classification:

B41J 3528

US Classification:

400208

Abstract:

A cassette for ribbon for a printer, particularly a thermal printer, is disclosed. The cassette is configured to be stably mounted to a print carriage of a thermal printer, or to a storage turret mounted to the printer for storing a number of cassettes, and to be transferred by a passive transfer system between the print carriage and the storage turret simply in response to movement of the print carriage. A smooth, low friction path is provided for the ribbon within the cassette with no acute angle changes in the path when the cassette is in a printing position and being acted upon by the printer's print head. The cassette is provided with a brake mechanism which automatically engages the supply and take-up reels in the cassette when the cassette is removed from the print carriage, and automatically disengages the brake mechanism when the cassette is mounted to the print carriage. The cassette is provided with a bar code so that cassettes on the storage turret may automatically be identified, particularly for use in an automatic cassette transfer system. The cassette housing is plastic and is provided with an anti-static additive.