Tuan Anh Hoang

US Patent:

20100222769, Sep 2, 2010

Filed:

Feb 19, 2010

Appl. No.:

12/709335

Inventors:

Ellis Meng - Pasadena CA, US
Po-Ying Li - Taipei, TW
Tuan Hoang - Pasadena CA, US

Assignee:

UNIVERSITY OF SOUTHERN CALIFORNIA - Los Angeles CA

International Classification:

A61M 5/142

US Classification:

6048911

Abstract:

An implantable fluid delivery system may include a fluid reservoir configured to hold a supply of fluid, to dispense that fluid under the control of an actuator, and to be implanted within the body of a living host. An actuator within the fluid reservoir may cause the fluid to be controllably dispensed from the fluid reservoir. The actuator may include a bellows configured to expand in a direction when inflated. The bellows may have folds with surfaces which run substantially perpendicular to the direction of expansion in a collapsed state and which define a stacked set of convolutions. Each convolution may have a collapsed height of no more than 1 mm and a width perpendicular to the direction of expansion of no more than 8 mm. Electrodes may be configured to come in electrical contact with an electrolyte within the bellows and to cause electricity to run through the electrolyte, thereby causing the electrolyte to break down into a gas and, in turn, to cause the bellows to expand. Methods of making the bellows which utilize stacked sheets are also disclosed.

US Patent:

56065655, Feb 25, 1997

Filed:

Feb 14, 1995

Appl. No.:

8/388655

Inventors:

Christopher L. Edler - Los Angeles CA
William D. Farwell - Thousand Oaks CA
Ian Herman - Hermosa Beach CA
Tuan M. Hoang - La Mirada CA
Brian F. Keish - Stanford CA
Alida G. Mascitelli - Thousand Oaks CA

Assignee:

Hughes Electronics - Los Angeles CA

International Classification:

H04B 1700

US Classification:

371 223

Abstract:

A boundary scan cell including a three-state output buffer, a test data scan flip-flop for providing an input to the three-state buffer, a control data scan flip-flop for receiving a serial control data input, independent clock signals for independently clocking the test data scan flip-flop and the control data scan flip-flop, and control circuitry for controllably providing the output of the control data scan flip-flop to the three-state output driver such that the enabled state of the three-state output buffer is controlled by the output of the control data scan flip-flop, whereby the enabled state of the three-state output driver is controlled independently of the test data in the test data scan flip-flop.

US Patent:

55286100, Jun 18, 1996

Filed:

Apr 30, 1992

Appl. No.:

7/876534

Inventors:

Christopher L. Edler - Los Angeles CA
William D. Farwell - Thousand Oaks CA
Ian Herman - Hermosa Beach CA
Tuan M. Hoang - La Mirada CA
Brian F. Keish - Stanford CA
Alida G. Mascitelli - Northridge CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

G01R 3128

US Classification:

371 223

Abstract:

Boundary scan cells including mask circuitry having a mask latch for storing a mask flag that is serially scanned into the cell via a scan flip-flop. In a boundary scan cell having an output function, control circuitry responsive to the mask flag forces or holds the output of the cell at a state determined by one or more values scanned into the cell via the scan flip-flop if the mask flag is of a predetermined state that indicates the cell is masked. In a boundary scan cell having an input function, control circuitry responsive to the mask flag connects the output of the scan flip-flop to the input of the scan flip-flop if the mask flag is of a predetermined state that indicates the cell is masked.