David C Cheng

US Patent:

7640566, Dec 29, 2009

Filed:

May 6, 2002

Appl. No.:

10/139906

Inventors:

Thomas H. Taylor - Redmond WA, US
Peter J. Potrebic - Calistoga CA, US
David J. Cheng - Cupertino CA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

H04N 7/173

US Classification:

725 88, 725 39, 725134, 725141, 386 45, 386 83

Abstract:

Memory is allocated to record a program being broadcast proportional to its remainder in a client device having a processor in communication with a receiver. The processor executes an application to allocate space in the memory to record the remainder of the broadcast of the program being received by the receiver that has a predetermined time length. The executing application obtains the predetermined time length from the broadcast received by the receiver and derives the remainder of the broadcast of the program from the present time and the predetermined time length obtained from the broadcast. The space can be logically erased prior to its allocation. A video recorder records the broadcast of the program being received by the receiver in the space in the memory. A video playback device plays back the recorded broadcast of the program from the space in the memory.

US Patent:

7970674, Jun 28, 2011

Filed:

Feb 3, 2006

Appl. No.:

11/347024

Inventors:

David Cheng - Seattle WA, US
Stan Humphries - Sammamish WA, US
Kyusik Chung - Seattle WA, US
Dong Xiang - Sammamish WA, US
Jonathan Burstein - Seattle WA, US

Assignee:

Zillow, Inc. - Seattle WA

International Classification:

G06Q 40/10

US Classification:

705 35, 705313

Abstract:

A facility procuring information about a distinguished property from its owner that is usable to refine an automatic valuation of the distinguished property is described. The facility displays information about the distinguished property used in the automatic valuation of the distinguished property. The facility obtains user input from the owner adjusting at least one aspect of information about the distinguished property used in the automatic valuation of the distinguished property. The facility then displays to the owner a refined valuation of the distinguished property that is based on the adjustment of the obtained user input.

US Patent:

8139768, Mar 20, 2012

Filed:

Jan 19, 2006

Appl. No.:

11/275626

Inventors:

Thaddeus C. Pritchett - Edmonds WA, US
Kenneth Reneris - Remond WA, US
Bernhard G. Kotzenberg - Bellevue WA, US
David J. Cheng - Cupertino CA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

H04L 29/06

US Classification:

380228, 725 90, 380200, 380212, 380239, 713189

Abstract:

A tuning device uses a counter mode encryption cipher to encrypt counters associated with media content in order to protect the media content when it is sent to requesting device or controller. The encrypted counters are decrypted in order to consume the media content. The controller may send particular direction to the tuning device as to how the media content, encrypted counters, and other associated data are sent to the controller.

US Patent:

20060005148, Jan 5, 2006

Filed:

Jun 30, 2004

Appl. No.:

10/879049

Inventors:

David Cheng - Redmond WA, US
Sean Purcell - Seattle WA, US
Eyal Schwartz - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 17/00

US Classification:

715808000

Abstract:

A system and related techniques automatically monitor browser and other sessions to detect the onset of a popup or other automatically generated windows or media. When a popup object is detected, a filter or engine may examine the content of that object to generate an estimate of the desirability of the popup to the user. The content-based evaluation of the popup may examine, for instance, the source of the popup, the type or quantity of embedded image files, text including keywords, embedded links and a variety of other factors to assess the likelihood that the popup was related to the user's legitimate browser activity or otherwise likely to be desired by the user. If not, the platform may suppress the popup or other object without user intervention. In embodiments, the content analysis may be performed by a self-learning network such as a neural network, for instance based on stored feedback from a collection of users, or otherwise.

US Patent:

20060242080, Oct 26, 2006

Filed:

Apr 22, 2005

Appl. No.:

11/113216

Inventors:

Clifford Van Dyke - Bellevue WA, US
David Cheng - Cupertino CA, US
Siva Mohan - Bothell WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 17/60

US Classification:

705059000

Abstract:

To communicate requirements for a digital license from a receiver of corresponding digital content to a computing device upon which the digital content is to be rendered, the receiver tunes the content and locates within the content information relating to the requirements for the license, constructs the requirements from the located information, and sends such constructed requirements to the computing device. The computing device upon receiving the sent requirements constructs the license based on such received requirements, stores such constructed license in a license store of such computing device, and thereafter renders the content only in accordance with the license. Thus, the receiver need not communicate the license itself to the computing device.