Liang Wang

US Patent:

20130188286, Jul 25, 2013

Filed:

Apr 2, 2012

Appl. No.:

13/437352

Inventors:

Liang Wang - Plano TX, US
Weibiao Zhang - Plano TX, US
Dening Wang - McKinney TX, US

Assignee:

TEXAS INSTRUMENTS INCORPORATED - Dallas TX

International Classification:

H02H 9/04

US Classification:

361 56

Abstract:

An apparatus comprises a first PFET including a first intrinsic body diode; an electrostatic discharge (ESD) subcircuit coupled to a source of the first PFET; a reverse bias voltage element, such as a zener diode, an anode of which is coupled to a gate of the first PFET; a second PFET having a source coupled to a cathode of the zener diode a capacitor coupled to a gate the second PFET; and a first resistor coupled to the gate of the second PFET. The apparatus can protect against both positive and negative electro static transient discharge events.

US Patent:

20130207937, Aug 15, 2013

Filed:

Feb 13, 2012

Appl. No.:

13/371725

Inventors:

John M. Lutian - Bellevue WA, US
Liang Wang - Sammamish WA, US
Karlton D. Powell - Lake Stevens WA, US
Steven Nabil Bathiche - Kirkland WA, US

Assignee:

MICROSOFT CORPORATION - Redmond WA

International Classification:

G06F 3/033
G06F 3/042

US Classification:

345175, 345179

Abstract:

Optical stylus interaction techniques are described. In an implementation, a display of a computing device includes optical sensors capable of detecting images projected by a stylus. A stylus may include a projection system to project various images used to convey interaction information that may be interpreted by the computing device. Based on recognition of different projected images, a context for interaction of the stylus may be ascertained and corresponding operations may be performed by the computing device. This may include resolving a spatial position of the stylus relative to the display device as well as movement of the stylus and images that defines various stylus-based gestures. In addition, the environment for optical stylus interaction enables a writing mode that emulates natural writing by mapping different projectable images to changes in pressure applied to the stylus when in contact with the display.

US Patent:

20150205445, Jul 23, 2015

Filed:

Jan 23, 2014

Appl. No.:

14/162440

Inventors:

- Redmond WA, US
Liang Wang - Sammamish WA, US
Pablo Sala - Bothell WA, US
Luis Eduardo Cabrera-Cordon - Bothell WA, US
Steven Nabil Bathiche - Kirkland WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 3/042
G06K 9/46

Abstract:

Global and local light detection techniques in optical sensor systems are described. In one or more implementations, a global lighting value is generated that describes a global lighting level for a plurality of optical sensors based on a plurality of inputs received from the plurality of optical sensors. An illumination map is generated that describes local lighting conditions of respective ones of the plurality of optical sensors based on the plurality of inputs received from the plurality of optical sensors. Object detection is performed using an image captured using the plurality of optical sensors along with the global lighting value and the illumination map.