Stephen E Rowe

US Patent:

7197436, Mar 27, 2007

Filed:

Jun 28, 2004

Appl. No.:

10/878461

Inventors:

Daniel Dinu - Redmond WA, US
Stephen Rowe - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 15/00

US Classification:

702189, 381 58

Abstract:

A system and method for calculating audio processing attribute in digital signal processing system are provided. A testing system generates a multi-channel test signal in which one channel is returned to the testing system and the other channel is sent to a tested system. The test signals are processed, mixed and correlated. The resulting differences in the correlated signals are used to calculate various processing attributes of the tested system.

US Patent:

7259779, Aug 21, 2007

Filed:

Aug 13, 2004

Appl. No.:

10/917708

Inventors:

Dragos C Avadanei - Kirkland WA, US
Stephen C Rowe - Bellevue WA, US
Stephen J Estrop - Carnation WA, US
Gary J Sullivan - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

H04N 17/00

US Classification:

348193, 348180

Abstract:

Assessment of de-interlaced video quality is determined automatically by de-interlacing interlaced video content using a reference de-interlacer and a test de-interlacer. The reference de-interlacer produces a result of known quality and the test de-interlacer is one which is being assessed. The result from each de-interlacer is compared to reference video content to derive a signal-to-noise ratio for each relative to the reference video content. The difference in the signal-to-noise ratios is compared against a predefined threshold. If the difference is within the range defined by the threshold, the test de-interlacer is determined to produce an acceptable product.

US Patent:

7627227, Dec 1, 2009

Filed:

May 17, 2004

Appl. No.:

10/847273

Inventors:

Glenn F. Evans - Kirkland WA, US
Stephen C. Rowe - Bellevue WA, US
Robin C. B. Speed - Winchester, GB
Gary J. Sullivan - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

H04N 5/91

US Classification:

386 68

Abstract:

Described herein is an implementation that facilitates the reverse presentation of an encoded digital media stream. This abstract itself is not intended to limit the scope of this patent. The scope of the present invention is pointed out in the appending claims.

US Patent:

7669082, Feb 23, 2010

Filed:

Apr 11, 2007

Appl. No.:

11/734136

Inventors:

Sumedh N. Barde - Redmond WA, US
Kirt A. Debique - Seattle WA, US
Alexandre V. Grigorovitch - Redmond WA, US
Sohail Baig Mohammed - Redmond WA, US
Patrick N. Nelson - Seattle WA, US
Gurpratap Virdi - Bellevue WA, US
Stephen C. Rowe - Bellevue WA, US

International Classification:

G06F 11/00

US Classification:

714 25, 718100

Abstract:

Techniques for playing a media file in a multimedia application include launching a multimedia application as one process and automatically launching a pipeline of one or more media processing components as one or more isolated processes. In this manner, any untrustworthy components can be executed in an isolated process that is separate from the execution process of the multimedia application, thereby improving fault tolerance and hang resistance.

US Patent:

7792806, Sep 7, 2010

Filed:

Jun 27, 2003

Appl. No.:

10/609182

Inventors:

Geoffrey T. Dunbar - Kirkland WA, US
Kirt Debique - Seattle WA, US
Glenn F. Evans - Kirkland WA, US
Robin C. B. Speed - Winchester, GB
Stephen Rowe - Bellevue WA, US
Rebecca C. Weiss - Menlo Park CA, US
Matthijs Gates - Wellesley MA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 7/00
H04N 5/91

US Classification:

707705, 386 68, 386 70, 386 95, 707914

Abstract:

A system and methods provide handling of variable rate playback in a multimedia computer architecture. The systems and methods provide data structures and interfaces that enable a computer architecture and components therein with the ability to playback data at speeds faster and slower than real-time, to playback data in reverse, and to change the rate of playback at any point during playback. One embodiment is a method for providing low-latency, glitch-free changes in a multimedia architecture. Other embodiments are directed to defining multimedia component responsibilities for making rate changes, allowing rate changes to work with standard playback types, coder-decoders, and renderers. The methods include determining a minimum of the maximum reported playback rates and determining minimum and maximum playback rates in a set of modes including: reverse skip mode, reverse key frame mode, reverse full mode, forward full mode, forward key frame mode, and forward skip mode.

US Patent:

8031891, Oct 4, 2011

Filed:

Jun 30, 2005

Appl. No.:

11/170844

Inventors:

Steven J. Ball - Seattle WA, US
Stephen C. Rowe - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

H04R 5/02

US Classification:

381303

Abstract:

Media may be dynamically rendered by receiving signals from one or more types of sensors sensing in an area, and obtaining from the signals information about one or more locations of furniture, or one or more locations of persons or heads or ears thereof, or identities of one or more persons in common with other data such as time of day, season, or other external metadata. Audio and/or video data may be rendered based on the locations or identities. The identity of a person can be automatically obtained and used to automatically select a rendering profile which is then used to render digital audio and/or video media. A dynamically changing spatial location of a head and/or or ears may be automatically determined and how an audio stream is rendered may be dynamically changed based on the spatial location.

US Patent:

8433697, Apr 30, 2013

Filed:

Sep 10, 2011

Appl. No.:

13/229697

Inventors:

Lawrence W. Osterman - Woodinville WA, US
Harold L. Pierson - Redmond WA, US
Elliot H. Omiya - Kirkland WA, US
Martyn S. Lovell - Seattle WA, US
Mahesh Prakriya - Redmond WA, US
Stephen C. Rowe - Bellevue WA, US
Tassaduq H. Basu - Redmond WA, US
Robert A. Wlodarczyk - Issaquah WA, US
Wei Zeng - Sammamish WA, US
Neeraj N. Wadhwa - Kirkland WA, US
Shakeel I. Solkar - Sammamish WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 17/30

US Classification:

707706, 707769

Abstract:

Various embodiments provide an ability to abstract type resolution between multiple type systems. At least one type can be described in one or more programmatically accessible file(s). In some embodiments, an application using a different type system can programmatically access and resolve a type of the at least one type system without knowledge of a location of where a description of the type resides. Alternately or additionally, type descriptions contained in the one or more programmatically accessible file(s) can be analyzed and restructured into one or more new programmatically accessible file(s) based, at least in part, upon the type descriptions.

US Patent:

20070041338, Feb 22, 2007

Filed:

Aug 18, 2005

Appl. No.:

11/207859

Inventors:

Stephen Rowe - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

H04Q 11/00

US Classification:

370261000

Abstract:

Disparate devices in an audio/video ecosystem may be connected and managed by having multiple crossbar connections at nodes in a node and leaf network. The leaves of the network may be various audio and video devices, with receivers, personal computers, and other devices comprising the nodes, which have at least some crossbar switching ability. When the nodes are connected, some or all of the devices attached to all of the nodes may be made available at each interface for control and display. Each node may act as a crossbar, allowing a user at each interface to enjoy the services of any device, regardless of the node to which the device is attached.