Tung B Pham

US Patent:

20070220390, Sep 20, 2007

Filed:

Mar 4, 2006

Appl. No.:

11/367940

Inventors:

Sarah Bird - Plano TX, US
Sundeep Chadha - Austin TX, US
Maureen Davis - Round Rock TX, US
Kirk Morrow - Round Rock TX, US
Tung Pham - Austin TX, US

International Classification:

G01R 31/28
G06F 11/00

US Classification:

714741000

Abstract:

A method for verifying the equivalence of two representations of a stimulus pattern for testing a design is disclosed. The method includes receiving a base pattern file representing the stimulus pattern in a first file format. A derivative pattern file in a second file format is generated from the base pattern file. The derivative pattern file is parsed to create a first testing file in a third file format, and the first testing file is simulated against the design in a first simulation. Whether the first testing file passed the first simulation against the design is determined, and in response to determining that the first testing file does not pass the first simulation against the design, the base pattern file is parsed to create a second testing file in the third file format. The second testing file is simulated in a second simulation. Whether the second testing file passed the second simulation is determined, and, in response to determining that the second testing file passed the second simulation, a likely non-equivalence of the derivative pattern file and the base pattern file is indicated. In response to determining that the second testing file did not pass the second simulation, a likely equivalence of the derivative pattern file and the base pattern file is indicated.

US Patent:

20190196113, Jun 27, 2019

Filed:

Mar 1, 2019

Appl. No.:

16/290649

Inventors:

- Dallas TX, US
Tung Pham - Dallas TX, US
Kevin M. Ehringer - Dallas TX, US
Billie Cottongim - Plano TX, US

International Classification:

G02B 6/38
G01M 11/08

Abstract:

The present disclosure includes systems and methods for testing bundles of fiber optic fibers, such as fiber optic trunk cables, for correct polarity of connections at each end of the bundle of fibers while preventing the fiber optic fibers from contacting any other components during testing. The systems include a processor, a plurality of signal generators interfaced with a plurality of signal generator ports, a sensor interfaced with a sensor input port, a first selector switch, and a display, the processor operable to stimulate the plurality of signal generators one at a time in a first sequence to produce a signal, the first sequence based on a position of the first selector switch, the processor further operable to cause the display to display an output of the sensor.

US Patent:

20180259716, Sep 13, 2018

Filed:

May 9, 2018

Appl. No.:

15/975286

Inventors:

- Dallas TX, US
Tung Pham - Dallas TX, US
Kevin M. Ehringer - Dallas TX, US
Billie Cottongim - Plano TX, US

International Classification:

G02B 6/38
G01M 11/08

Abstract:

The present disclosure includes systems and methods for testing bundles of fiber optic fibers, such as fiber optic trunk cables, for correct polarity of connections at each end of the bundle of fibers while preventing the fiber optic fibers from contacting any other components during testing. The systems include a processor, a plurality of signal generators interfaced with a plurality of signal generator ports, a sensor interfaced with a sensor input port, a first selector switch, and a display, the processor operable to stimulate the plurality of signal generators one at a time in a first sequence to produce a signal, the first sequence based on a position of the first selector switch, the processor further operable to cause the display to display an output of the sensor.

US Patent:

20180203191, Jul 19, 2018

Filed:

Jan 17, 2017

Appl. No.:

15/407760

Inventors:

- Dallas TX, US
Tung Pham - Dallas TX, US
Kevin M. Ehringer - Dallas TX, US
Billie Cottongim - Plano TX, US

International Classification:

G02B 6/38
G01M 11/08

Abstract:

The present disclosure includes systems and methods for testing bundles of fiber optic fibers, such as fiber optic trunk cables, for correct polarity of connections at each end of the bundle of fibers while preventing the fiber optic fibers from contacting any other components during testing. The systems include a processor, a plurality of signal generators interfaced with a plurality of signal generator ports, a sensor interfaced with a sensor input port, a first selector switch, and a display, the processor operable to stimulate the plurality of signal generators one at a time in a first sequence to produce a signal, the first sequence based on a position of the first selector switch, the processor further operable to cause the display to display an output of the sensor.