Thanh Hoang Tran

US Patent:

6346927, Feb 12, 2002

Filed:

Oct 31, 1998

Appl. No.:

09/183944

Inventors:

Thanh T. Tran - Houston TX
David W. Engler - Houston TX

Assignee:

Compaq Computer Corporation - Houston TX

International Classification:

G09G 500

US Classification:

345 1, 345132

Abstract:

A monitor having multiple video input ports and connectors is provided with automatic video input detection/selection circuitry. The circuitry may automatically detect when an external source such as a computer system is driving a video input port. The circuitry, for example, may detect whether a video input port is being driven by monitoring a sync signal (vertical or horizontal) for the video input port. A video input detect signal for a video input port may be generated from the sync signal for the video input port. In response to assertion of the video input detect signal indicating a source is driving a video input port, the circuitry may select the particular video input port. A microcontroller of the circuitry may provide a video input selector signal configured to select the video input port. When a single video input port is driven, user interaction is no longer necessary to select the particular video input port. If multiple video input ports are driven, a user may manually choose a particular video input port through a video selection button provided by an on-screen display of the monitor or by the computer system.

US Patent:

6359987, Mar 19, 2002

Filed:

May 16, 1997

Appl. No.:

08/857258

Inventors:

Thanh T. Tran - Houston TX
Hiten N. Dalal - Cypress TX
Kurtis J. Bowman - Cypress TX

Assignee:

Compaq Computer Corporation - Houston TX

International Classification:

H04R 2900

US Classification:

381 58, 381120, 381123

Abstract:

A computer system having automatic speaker detection circuitry is disclosed. The typical computer system includes a central processing unit, a data input device, and a sound card. Further, there is an audio amplifier, as well as an automatic detection and selection circuit that may be within the sound card or the audio amplifier or just part of the computer system as a whole. This automatic detection selection device is able to determine an impedance load of an output device attached to the computer system, namely, a speaker system, and is able to disable the audio amplifier within the computer system upon determining the impedance load and matching that impedance load against a selected value indicating that no amplification of the signal is required for the output device. Further, an audio sound equalizer is part of the system and can be bypassed in the same manner that the audio amplifier is, namely, that particular impedance load is measured indicating that no equalization is necessary.

US Patent:

6501836, Dec 31, 2002

Filed:

May 25, 1995

Appl. No.:

08/450388

Inventors:

Thanh T. Tran - Houston TX
Kurtis J. Bowman - Cypress TX

Assignee:

Compaq Computer Corporation - Houston TX

International Classification:

H04M 1100

US Classification:

37911001

Abstract:

An audio system for multimedia computer systems and method for use are provided including an audio module having speakers, a microphone and associated circuitry. The audio module is adapted to be interposed between a monitor and a monitor pedestal such that the audio module swivels and tilts in concert with the monitor. The circuitry is adapted to drive the audio module speakers and to drive only one speaker and the microphone in a speaker phone mode.

US Patent:

6735884, May 18, 2004

Filed:

Jun 20, 2002

Appl. No.:

10/177034

Inventors:

Daniel Fratello - Golden CO
Dennis R. McCadden - Wheat Ridge CO
Thanh Tran - Aurora CO

Assignee:

Mark VII Equipment, Inc. - Arvada CO

International Classification:

F26B 300

US Classification:

34487, 34666, 34218, 34229, 34232, 239751, 454305

Abstract:

A dryer system for automated car wash systems includes a new and improved air dryer having a fan and a rotatable nozzle at its discharge end with the nozzle orientation being controlled by a rotary actuator whose drive shaft is mounted on the axis of rotation of the nozzle. A method of using the blowers includes the use of two or more blowers that are positioned above the vehicle and oriented so the streams of concentrated air complement each other in moving liquid particles on the vehicle toward the side or end of the vehicle where they drop from the lower edges of the sides and ends of the vehicle.

US Patent:

6807973, Oct 26, 2004

Filed:

May 4, 2001

Appl. No.:

09/849763

Inventors:

Daniel A. Fratello - Golden CO
James Johnson - Coeur Dalene ID
Michael W. Mingee - Aurora CO
Jon Leppo - Denver CO
David M. Gauthier - Denver CO
Eric Engen - Bailey CO
Dennis McCadden - Thornton CO
Thanh J. Tran - Aurora CO

Assignee:

Mark VII Equipment LLC - Arvada CO

International Classification:

B08B 302

US Classification:

134123, 134198, 134181

Abstract:

An automatic vehicle washing system is described. The vehicle washing system incorporates an elongated overhead cleaning platform for cleaning the front, top and rear surfaces of a vehicle. The overhead cleaning platform is attached to a single lift mechanism at a first end and is suspended from a belt at a second end, wherein the belt is also operatively connected to the first end. Accordingly, vertical movement of the lift actuator causes both ends of the platform to uniformly rise or descend. The platform further comprises a pivotal boom with fluid nozzles attached thereto, and a reciprocating pivotal actuator. The reciprocating pivotal actuator is capable of pivotal movement to any number of angular orientations within its operative range of motion. Advantageously, the pivotal and vertical positions of the nozzles can be independently varied, permitting the location of the overhead cleaning nozzles to be optimized for various vehicle profiles.

US Patent:

7046308, May 16, 2006

Filed:

Nov 13, 1998

Appl. No.:

09/191629

Inventors:

Thanh T. Tran - Houston TX, US
Michael P. Moriarty - Spring TX, US
Giang H. Dao - Houston TX, US

Assignee:

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

International Classification:

H04N 7/01
G06F 13/16

US Classification:

348725, 345521

Abstract:

A digital television/local bus interface logic supports handling of digital television (DTV) data with non-tearing. The interface logic provides a dual frame buffer DTV architecture in which a pair of DTV/local bus frame buffers alternate functions: one frame buffer stores incoming DTV data and the other frame buffer stores the outgoing DTV data. When a refresh of a display device reaches a programmed position of the display device, the interface logic determines which frame buffer is being updated by the incoming DTV data. The outgoing DTV data is then read from an opposite frame buffer and transmitted to the display device. The interface logic receives a horizontal sync signal and a vertical sync signal from the graphics controller for monitoring refresh of the display device. The interface logic also provides an architecture for transferring decoded DTV data over a local bus to the graphics controller.

US Patent:

7056390, Jun 6, 2006

Filed:

Feb 10, 2004

Appl. No.:

10/776092

Inventors:

Daniel A. Fratello - Golden CO, US
James Johnson - Coeur D'alene ID, US
Michael W. Mingee - Aurora CO, US
Jon Leppo - Denver CO, US
David M. Gauthier - Denver CO, US
Eric Engen - Bailey CO, US
Dennis McCadden - Thornton CO, US
Thanh J. Tran - Aurora CO, US

Assignee:

Mark VII Equipment LLC - Arvada CO

International Classification:

B08B 3/02

US Classification:

134 18, 134 26, 134 36

Abstract:

An automatic vehicle washing system is described. The vehicle washing system incorporates an elongated overhead cleaning platform for cleaning the front, top and rear surfaces of a vehicle. The overhead cleaning platform is attached to a single lift mechanism at a first end and is suspended from a belt at a second end, wherein the belt is also operatively connected to the first end. Accordingly, vertical movement of the lift actuator causes both ends of the platform to uniformly rise or descend. The platform further comprises a pivotal boom with fluid nozzles attached thereto, and a reciprocating pivotal actuator. The reciprocating pivotal actuator is capable of pivotal movement to any number of angular orientations within its operative range of motion. Advantageously, the pivotal and vertical positions of the nozzles can be independently varied, permitting the location of the overhead cleaning nozzles to be optimized for various vehicle profiles.

US Patent:

7080337, Jul 18, 2006

Filed:

Dec 31, 2003

Appl. No.:

10/749501

Inventors:

Thanh T. Tran - Houston TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G06F 17/50

US Classification:

716 10, 716 1, 716 2, 716 11

Abstract:

An embodiment of the present invention includes a method of providing a non-uniform distribution of decoupling capacitors to provide a more uniform noise level across the chip. Leads on a packaged semiconductor chip are grouped into two or more regions. Types of leads needing decoupling capacitors are grouped into lead categories. For each region, there may be one or more lead categories therein. One or more decoupling capacitors are preferably assigned to each lead category in each region. Calculations may be performed to estimate a desired capacitance for each decoupling capacitor for each lead category in each region. When a chip has different components operating at different switching frequencies, different voltages, and/or different switching currents, the distribution of the decoupling capacitors will likely be non-uniform to provide a more uniform noise level across the chip, as compared to a uniform distribution of decoupling capacitors for the chip.