Michael M Tsang

US Patent:

6557120, Apr 29, 2003

Filed:

Mar 31, 2000

Appl. No.:

09/540649

Inventors:

Clark D. Nicholson - Seattle WA
Michael Y. Tsang - Kirkland WA
Zhiyuan Zhao - Redmond WA
Haifeng Zhou - Kirkland WA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 1100

US Classification:

714 38, 717124, 714 31, 714 47

Abstract:

A system and method for accelerated reliability testing of computer system software components over prolonged periods of time provides a uniform, extensible, reporting framework that includes a plurality of reporting clients, at least one controller. The system and method are adaptable for operation over a dedicated intranet as well as the Internet. It provides for tracking the reliability of system components and logs failures of varying severity that may be expected to occur over time. This data is useful, among other things, for estimating mean time between failures for software being tested and expected support costs. This information is particularly useful in providing a reliability measure where multiple independently developed software modules are expected to function together. The testing includes random scheduling of tasks and sleep intervals reflecting expected usage patterns, but at a faster pace to efficiently sample the state space to detect sequence of operations that are likely to result in failures in actual use. The method and system include using pseudo-random numbers to schedule the tasks and provides for storage of random numbers to facilitate reproducing failures, for instance for debugging efforts.

US Patent:

6727896, Apr 27, 2004

Filed:

Aug 1, 2001

Appl. No.:

09/918482

Inventors:

Michael H. Tsang - Bellevue WA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G09G 500

US Classification:

345178, 345173, 178 1802

Abstract:

A method and system for correcting alignment and linearity errors in devices using a finger or stylus input device with a display device interactively coupled to a digitizer is disclosed. Touching intersections in a calibration grid on the display device may be performed to create a linearity map. Subsequently, detected stylus input is mapped to a sector in the linearity map, and resultant screen coordinates are calculated using ratios within a reference rectangle corresponding to the detected stylus input and the mapped sector.

US Patent:

6877018, Apr 5, 2005

Filed:

Jun 29, 2001

Appl. No.:

09/895449

Inventors:

Jacob Oshins - Seattle WA, US
Stephane G. Plante - Kirkland WA, US
Adrian J. Oney - Woodinville WA, US
Michael H. Tsang - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F017/30

US Classification:

707206, 707 10, 707102, 707200, 707205

Abstract:

An advanced configuration and power management system is described which supports an unload command by identifying those objects that are to be unloaded and, rather than simply attempting to delete the objects, detaches them from the namespace while keeping them in memory in a location accessible by the system. In this way, the system avoids the problem of trying to synchronize accesses to the objects, yet the objects not longer exist in the tree, so namespace collisions are avoided.

US Patent:

6903730, Jun 7, 2005

Filed:

Jan 16, 2001

Appl. No.:

09/759202

Inventors:

James E. Mathews - Bellevue WA, US
Charles Patrick Thacker - Palo Alto CA, US
Michael Hin-cheung Tsang - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G09G005/00

US Classification:

345179, 345173, 345156, 345863

Abstract:

A technique is disclosed for detecting an in-air gesture made by a digitizing pen above a digitizing writing surface. When the digitizing pen is determined to be in motion above the digitizing writing surface, positional information of the digitizing pen with respect to the surface of the digitizing writing surface is recorded within a moving buffer. The moving buffer records a predetermined amount of positional information spanning a predetermined amount of time while the digitizing pen is in motion above the digitizing writing surface. When the digitizing pen has stopped motion, positional information recorded in the moving buffer is evaluated for determining whether the recorded information corresponds to a predetermined in-air gesture. A predetermined user interface panel is displayed when the positional information recorded in the moving buffer corresponds to a predetermined in-air gesture.

US Patent:

7106311, Sep 12, 2006

Filed:

Mar 15, 2004

Appl. No.:

10/799636

Inventors:

Michael H. Tsang - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G09G 5/00
G06K 11/06

US Classification:

345178, 345174, 178 1802

Abstract:

A method and system for correcting alignment and linearity errors in devices using a finger or stylus input device with a display device interactively coupled to a digitizer is disclosed. Touching intersections in a calibration grid on the display device may be performed to create a linearity map. Subsequently, detected stylus input is mapped to a sector in the linearity map, and resultant screen coordinates are calculated using ratios within a reference rectangle corresponding to the detected stylus input and the mapped sector.

US Patent:

7345681, Mar 18, 2008

Filed:

Feb 17, 2004

Appl. No.:

10/778346

Inventors:

Sumit Mehrotra - Bellevue WA, US
Michael H Tsang - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 3/33
G06F 3/41
G06K 11/06

US Classification:

345179, 382186, 178 1801, 715541

Abstract:

A tool that allows a user, such as a software developer, to create test data that can consistently be employed to simulate the operation of a hardware pen or stylus. Raw pen data, such as position coordinates, pen angle and pen properties, is captured. This data is then later injected into a system being tested in place of pen data from a device driver. The raw pen data may be captured through an application programming interface invoked by a host application. The captured data can then subsequently be injected through another application programming interface invoked by a host application, such as a software testing application for testing a variety of operations of another software application. Alternately, a stand-alone utility may be used for capturing and then injecting raw pen data.

US Patent:

7409537, Aug 5, 2008

Filed:

Oct 6, 2005

Appl. No.:

11/245629

Inventors:

Michael H. Tsang - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 9/00
G06F 15/177

US Classification:

713 1, 713 2, 713100

Abstract:

Described is a fast boot mechanism that generally operates by persisting static data and/or code for a system component, and then providing the system component with access to the static data and/or code during a subsequent device boot. For example, the static data and/or code of one or more components may be restored from non-volatile memory to volatile memory, whereby subsequent reboots need not have the components re-compute their persisted static data, making subsequent reboots faster. A fast boot infrastructure may include an interface set, and provides first mechanism that persists static data and/or code for a system component, and a second mechanism that provides the system component with access to the static data and/or code. The fast boot infrastructure may also provide the component with a way to invalidate static data and/or code, along with a background mechanism that collects static data and/or code from the system component.

US Patent:

7469386, Dec 23, 2008

Filed:

Jan 30, 2004

Appl. No.:

10/768777

Inventors:

Eric Justin Gould Bear - Bellevue WA, US
William Hong Vong - Seattle WA, US
Leroy Bertrand Keely - Portola Valley CA, US
Barbee Eve Teasley - Leavenworth WA, US
Adam John Richardson - Oakland CA, US
Michael H. Tsang - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 3/048

US Classification:

715771, 715840

Abstract:

The present invention provides a systems, methods, and products for enhanced user navigation to compliment (but not necessarily replace) a computer keyboard and mouse by providing a robust navigation interface. The present invention may comprise: a minimally necessary group of commands; combining the functionality a set of at least two command calls into a single logical button; for a single button, prioritizing a set of command calls from first to last and then calling each until one is accepted; logically remapping commands to buttons for a navigational device coupled to a physically rotate-able display device; and mapping a substitute command to a logical button for when the button is engaged in a predetermined manner other than the primary manner in which the logical button is engaged (e. g. , double-clicking, flicking, press-and-hold, etc. ) so that a substitute command can in fact be issued, among others.