Yun H Lin

US Patent:

6618045, Sep 9, 2003

Filed:

Feb 4, 2000

Appl. No.:

09/497913

Inventors:

Yun Lin - Kirkland WA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06G 500

US Classification:

345207, 345212, 345214

Abstract:

Methods and arrangements are provided that automatically adjust various operating settings associated with a display device in response to detected lighting conditions. The methods and arrangements respond to dynamically changing light conditions in an effort to significantly maintain the output quality of the display as previously established by the user. Memory is provided and configured to store at least one user preference value. At least one display parameter controller unit operatively associated with the display device is also provided and configured to respond to a parameter setting. At least one sensor unit, which is responsive to light, is configured to output a detected light value to logic. The logic is operatively coupled to the memory, the display parameter controller unit and the sensor unit. The logic is configured to output the parameter setting to the parameter controller unit based on the user preference value and the detected light value.

US Patent:

6889233, May 3, 2005

Filed:

Jun 18, 2001

Appl. No.:

09/883897

Inventors:

Yun Lin - Kirkland WA, US
Shishir Pardikar - Redmond WA, US
Venkataraman Ramanathan - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F017/00

US Classification:

707200, 707 10, 707205

Abstract:

A method of purging cached open files from a client-side delayed close list on a remote file system. The remote file system stores a unique file identifier for each cached open file which is independent of the cached file's namespace. In response to a delete or rename command of a remote target file, the remote file system obtains a target file identifier from the target file's server. The remote file system then compares the target file identifier with each of the cached file's unique file identifier. If a cached file's unique file identifier matches the target file identifier, the cached file is purged from the delayed close list.

US Patent:

6957219, Oct 18, 2005

Filed:

Nov 15, 2001

Appl. No.:

10/003137

Inventors:

Yun Lin - Kirkland WA, US
Balan Sethu Raman - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F017/30

US Classification:

707 10, 709203, 709217

Abstract:

A pipeline I/O mechanism in a network redirector that breaks up large files into sections, and sends write (or read) requests for each section in a pipeline fashion to a network file server, without waiting for a response for a previously-sent section. The pipeline I/O mechanism tracks the returned status of each section for which a request was made, so that success or failure of the request is determined as a whole. The pipeline I/O system and method dramatically increase the performance of network remote I/O operations, particularly with file write operations directed to a file on a network file server.

US Patent:

7065558, Jun 20, 2006

Filed:

Feb 22, 2002

Appl. No.:

10/081673

Inventors:

Venkataraman Ramanathan - Sammamish WA, US
Ramanathan Ganapathy - Redmond WA, US
Yun Lin - Kirkland WA, US
David Kruse - Kirkland WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 15/16

US Classification:

709217, 709219, 709203

Abstract:

An opportunistic directory cache and method of usage reduce the number of calls between a client and server for file information, reducing the wastage of network resources and server resources. The expirable directory cache can be refreshed any time an appropriate directory enumeration call is made to the server, and is capable of being partially rather than completely invalidated in response to an indication that the file information of a file listed in the cache has or will change. If the affected file is identifiable, the entry in the cache for that file is invalidated, i. e. it is no longer useful for serving file information. If the affected file is not identifiable, then a first character projection of the file name is invalidated in the cache. In this manner, the directory cache is maintained with minimum resources and is persisted to the greatest extent possible, increasing its likelihood of usefulness.

US Patent:

7076611, Jul 11, 2006

Filed:

Aug 1, 2003

Appl. No.:

10/632386

Inventors:

David C. Steere - Bellevue WA, US
Brian S. Aust - Redmond WA, US
Yun Lin - Kirkland WA, US
Mohammed Samji - Bellevue WA, US
Navjot Virk - Bellevue WA, US
Shishir P. Pardikar - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 12/00
G06F 7/00

US Classification:

711133, 711118, 711154

Abstract:

The present invention is directed at a system and method for managing and evicting objects stored in a cache. The invention provides a mechanism for determining which objects to evict based on a weight that is calculated for each object stored in the cache. The weight is determined by at least two factors, including file size, file type, primary user, last access time, and the like, and by the relative importance of each of the factors. The weight for each object may be determined autonomously and/or may be determined upon a trigger event. The factors and their relative importance may be obtained from a policy applicable to one or several computers.

US Patent:

7349943, Mar 25, 2008

Filed:

Mar 12, 2003

Appl. No.:

10/387972

Inventors:

Yun Lin - Kirkland WA, US
Navjot Virk - Redmond WA, US
Shishir Pardikar - Redmond WA, US
Rohan Kumar - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 15/16
G06F 12/00

US Classification:

709203, 709213, 709217, 711118, 711141

Abstract:

A system and method that automatically and transparently handle client-side caching of network file data, independent of any remote file handling protocol. A protocol-independent client-side caching mechanism is inserted as a service that handles file-related requests directed to a network, and attempts to satisfy the requests via a client-side caching persistent store. By way of pre-process and post-process calls on a file create request, the caching mechanism creates file-related data structures, and overwrites the information in those structures that a buffering service uses to call back to a network redirector, whereby the client-side caching mechanism inserts itself into the communication flow between the network redirector and the buffering service. Once in the flow of communication, network-directed file read and write requests may be transparently handled by the client-side caching mechanism when appropriate, yet the redirector may be instructed to communicate with the server when needed to satisfy the request.

US Patent:

7359903, Apr 15, 2008

Filed:

Oct 17, 2005

Appl. No.:

11/252684

Inventors:

Yun Lin - Kirkland WA, US
Balan Sethu Raman - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 17/30

US Classification:

707 10, 709203, 709217

Abstract:

A pipeline I/O mechanism in a network redirector that breaks up large files into sections, and sends write (or read) requests for each section in a pipeline fashion to a network file server, without waiting for a response for a previously-sent section. The pipeline I/O mechanism tracks the returned status of each section for which a request was made, so that success or failure of the request is determined as a whole. The pipeline I/O system and method dramatically increase the performance of network remote I/O operations, particularly with file write operations directed to a file on a network file server.

US Patent:

7437429, Oct 14, 2008

Filed:

Jan 17, 2002

Appl. No.:

10/052039

Inventors:

Shishir Pardikar - Redmond WA, US
Rohan Kumar - Seattle WA, US
Yun Lin - Kirkland WA, US
Praerit Garg - Bellevue WA, US
Jianrong Gu - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 15/16
G06F 12/00

US Classification:

709219, 709203, 707203

Abstract:

Access to WebDAV (Distributed Authoring and Versioning) servers is provided in a manner that is essentially transparent to applications. A WebDAV redirector and related components support file system I/O requests and network requests directed to WebDAV servers identified by URI (Universal Resource Identifier) names, or by a drive may be mapped to a WebDAV share. An application's create or open I/O requests directed to a WebDAV server are detected, and result in a local copy of the file being downloaded and cached for local access. When closed, the local file is uploaded to the WebDAV server. Network-related requests such as for browsing that are directed to a WebDAV server are also handled transparently. WebDAV files may be locally encrypted and decrypted at the file system level, transparent to applications and the WebDAV server, via an encrypting file system that performs local encryption and decryption at the local file system level.