Dat Thanh Nguyen

US Patent:

20110143321, Jun 16, 2011

Filed:

Dec 10, 2009

Appl. No.:

12/654110

Inventors:

Nghia Xuan Tran - San Diego CA, US
Dat Duc Nguyen - Stanton CA, US

International Classification:

G09B 21/00

US Classification:

434114

Abstract:

A processor, portable power source and Braille character touchpad with a first column area is described, containing three substantially linearly arranged finger responsive areas corresponding to column representations of a Braille character and an adjacent-offset second column area containing one finger responsive area to indicate a null column. Braille character is input by engaging at least one area of the three substantially linearly arranged finger responsive areas and the one finger responsive area. Alternatively, a Braille touchpad containing six finger responsive areas arranged in two columns corresponding to first and second column representations of a Braille character and an adjacent touch gesture pad is described, containing a plurality of finger and gesture responsive areas. A Braille character is input by engaging at least one of the six finger responsive areas and the plurality of finger and gesture responsive areas. Word processing and command action may be initiated by the gesture pad.

US Patent:

20220275422, Sep 1, 2022

Filed:

May 16, 2022

Appl. No.:

17/745622

Inventors:

- Englewood CO, US
Kok-Hwee Ng - Irvine CA, US
Darshan Yeliyur Siddegowda - Mission Viejo CA, US
Jenna Zimmerman - Newport Beach CA, US
Dat Nguyen - Rancho Santa Margarita CA, US
Mitchell London - Mission Viejo CA, US
Jake Douglas Knickerbocker - Westminster CA, US
Edward MacLeod Perkins - Studio City CA, US
Robert G. Waarts - Los Altos CA, US

International Classification:

C12Q 1/22
C12M 1/12

Abstract:

A biological indicator includes: a BI housing; a germinant container inside the BI housing and housing a germinant composition; a germinant releaser configured to release the germinant composition from the germinant container; a germinant releaser support supporting the germinant releaser and configured to bring the germinant releaser into contact with the germinant container upon application of a force to the germinant releaser support or the germinant container; a first spore carrier inside the BI housing, the first spore carrier having a plurality of spores deposited at a first surface thereof; and an imaging window at a first surface of the BI housing. A BI reader is configured to detect and quantify the presence of live spores in the BI, and includes an excitation source, a camera for capturing images of the spores over time, and a processor for analyzing the images to determine the presence of live spores.

US Patent:

20220275423, Sep 1, 2022

Filed:

May 16, 2022

Appl. No.:

17/745658

Inventors:

- Englewood CO, US
Kok-Hwee Ng - Irvine CA, US
Darshan Yeliyur Siddegowda - Mission Viejo CA, US
Jenna Zimmerman - Newport Beach CA, US
Dat Nguyen - Rancho Santa Margarita CA, US
Mitchell London - Mission Viejo CA, US
Jake Douglas Knickerbocker - Westminster CA, US
Edward MacLeod Perkins - Studio City CA, US
Robert G. Waarts - Los Altos CA, US

International Classification:

C12Q 1/22
C12M 1/12

Abstract:

A biological indicator includes: a BI housing; a germinant container inside the BI housing and housing a germinant composition; a germinant releaser configured to release the germinant composition from the germinant container; a germinant releaser support supporting the germinant releaser and configured to bring the germinant releaser into contact with the germinant container upon application of a force to the germinant releaser support or the germinant container; a first spore carrier inside the BI housing, the first spore carrier having a plurality of spores deposited at a first surface thereof; and an imaging window at a first surface of the BI housing. A BI reader is configured to detect and quantify the presence of live spores in the BI, and includes an excitation source, a camera for capturing images of the spores over time, and a processor for analyzing the images to determine the presence of live spores.