Ramesh K Goel

US Patent:

20120235985, Sep 20, 2012

Filed:

Oct 21, 2011

Appl. No.:

13/279187

Inventors:

Nao S. Chuei - San Mateo CA, US
Koorosh Aflatooni - Cupertino CA, US
Wilhelmus Johannes Robertus Van Lier - San Diego CA, US
Pramod K. Varma - La Jolla CA, US
Ramesh K. Goel - San Diego CA, US
Sameer Venugopal - San Jose CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G06F 3/038

US Classification:

345214

Abstract:

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array.

US Patent:

20130321379, Dec 5, 2013

Filed:

Feb 1, 2013

Appl. No.:

13/757591

Inventors:

Pramod K. Varma - San Diego CA, US
Nao S. Chuei - San Mateo CA, US
Vladimir Radomirovic - San Diego CA, US
Ramesh K. Goel - San Diego CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G09G 3/00
H02N 1/00

US Classification:

345212, 318116, 345108

Abstract:

This disclosure provides methods and apparatus for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array. The drive response characteristic may be determined by applying a ramp voltage to a line of the array and detecting a current pulse due to a capacitance change on the line. The ramp voltage generator can include a capacitor and a digitally controlled current source.

US Patent:

20120062615, Mar 15, 2012

Filed:

Sep 2, 2011

Appl. No.:

13/225282

Inventors:

Wilhelmus Johannes Robertus Van Lier - San Diego CA, US
Alan Lewis - Sunnyvale CA, US
Koorosh Aflatooni - Cupertino CA, US
Pramod Varma - La Jolla CA, US
Ramesh Kumar Goel - San Diego CA, US
Nao Sugawara Chuei - San Mateo CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G09G 5/10
G06F 3/038

US Classification:

345690, 345208

Abstract:

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for calibrating display arrays. In one aspect, a method of calibrating a display array includes determining a particular drive response characteristic and updating a particular drive scheme voltage between updates of image data on the display array.