Pankaj Gupta

US Patent:

8584132, Nov 12, 2013

Filed:

Dec 12, 2008

Appl. No.:

12/334087

Inventors:

Pankaj B. Gupta - Bothell WA, US
Vivek Gupta - Bothell WA, US
Randell E. Aull - Kenmore WA, US
Deng Zhong - Woodinville WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 9/46
G06F 15/16

US Classification:

718104, 719321, 709230, 370912, 370913

Abstract:

Various embodiments provide a two-way interface between a URC driver (URCD) and various Protocol Adaption Layer (PAL) drivers. The two-way interface can enable bandwidth to be shared and managed among multiple different PALs. The two-way interface can also be used to implement common radio functionality such as beaconing, channel selection, and address conflict resolution. In at least some embodiments, the two-way interface can be utilized for power management to place PALs in lower power states to conserve power and to support remote wake-up functionality. Further, at least some embodiments can enable vendor-specific PALs to interact with vendor-specific hardware.

US Patent:

20100153760, Jun 17, 2010

Filed:

Dec 12, 2008

Appl. No.:

12/334110

Inventors:

Vivek Gupta - Bothell WA, US
Randall E. Aull - Kenmore WA, US
Pankaj B. Gupta - Bothell WA, US
Firdosh K. Bhesania - Kirkland WA, US
Patrick L. Stemen - Redmond WA, US
Mark E. Maszak - Sammamish WA, US
David C. Hargrove - Woodinville WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 1/00

US Classification:

713323, 713300

Abstract:

Various embodiments enable a host controller, through its Protocol Adaption Layer (PAL) driver, to efficiently manage power consumption by employing “sleep mode” and “active mode” power settings. In some embodiments, the PAL driver may employ sleep mode settings to transition the host controller from an idle state to an energy conserving sleep state. In further embodiments, the PAL driver may use active mode settings to govern communications between the host controller and various devices, such as WUSB devices and others, thereby conserving power.

US Patent:

20120159250, Jun 21, 2012

Filed:

Feb 1, 2012

Appl. No.:

13/364215

Inventors:

Randall Edward Aull - Kenmore WA, US
Pankaj Bharti Gupta - Bothell WA, US
Jane Evguenia Lawrence - Redmond WA, US
Venkatesh-Prasad Ranganath - Bangalore, IN
Pradip Harindran Vallathol - Thrissur, IN

Assignee:

MICROSOFT CORPORATION - Redmond WA

International Classification:

G06F 11/00

US Classification:

714 26, 714E1102

Abstract:

A “Compatibility Tester” extracts observable behaviors from different system implementations (e.g., software, operating systems, device drivers, hardware interfaces, etc.), then performs compatibility testing via comparisons of the extracted behaviors. Traces (e.g., bus level signals between controllers and hardware devices or commands between software components) representing observable behaviors of different implementations of a system are captured. Temporal and structural rules are then mined from these traces. The mined rules (or a model constructed from those rules) are used by a “Rule Checking” process that determines whether reference rules (mined from a known compatible system) are compatible with rules mined from test traces of a second system. Invalid rules are flagged as behavioral compatibility bugs. Alternately, the mined rules are used by a “Rule Diffing” process that performs set differencing of the behavioral and structural rules mined from the different system implementations, with differences between the systems flagged as behavioral compatibility bugs.