Michael We Chen

US Patent:

6449251, Sep 10, 2002

Filed:

Apr 2, 1999

Appl. No.:

09/285127

Inventors:

Amr A. Awadallah - Stanford CA
Michael Chen - Cupertino CA
David Li - Stanford CA
Manu Thapar - Freemont CA

Assignee:

Nortel Networks Limited - St. Laurent

International Classification:

H04L 1256

US Classification:

370229, 370412, 370465, 709103, 709235, 709244, 713100, 713201

Abstract:

A packet mapper prioritizes streams of data packets in a computer network, each data packet having a packet header containing feature values descriptive of the data packet. The packet mapper includes a mapping table that associates application-related features with network-reserved feature values from a range of feature values reserved for use by selected network data packet streams, and a feature value mapper that performs at least one of (i) in each packet header having an application-related feature value associated with a network-reserved feature value, substituting the associated network-reserved feature value for the application-related feature value, and (ii) in each packet header having a network-reserved feature value associated with an application-related feature value, substituting the associated application-related feature value for the network-reserved feature value.

US Patent:

7147641, Dec 12, 2006

Filed:

May 30, 2001

Appl. No.:

09/866841

Inventors:

Michael C. Chen - King of Prussia PA, US

International Classification:

A61B 17/56

US Classification:

606 72, 606104

Abstract:

The invention relates to a device for attaching fixation elements to bone, having a longitudinal member with a channel extending therein adapted for receiving at least one fixation element. A shaft extends within the channel and is positioned coaxially within at least a portion of the longitudinal member and at least a portion of the shaft is retained within the longitudinal member and a distal end of the shaft is configured and adapted to contact at least a portion of the fixation element received within the longitudinal member. The longitudinal member is moveable with respect to the shaft to drive the fixation element into bone.

US Patent:

7350024, Mar 25, 2008

Filed:

Dec 16, 2004

Appl. No.:

11/015871

Inventors:

Michael Chen - Palo Alto CA, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G06F 12/00

US Classification:

711118, 711133

Abstract:

A method for applying software controlled caching and ordered thread optimizations in network applications includes collecting statistics for program variables, selecting program variable candidates for ordered synchronization and/or software controlled cache optimization, performing a safety check to ensure candidates can be properly optimized, and generating code for selected optimization candidates.

US Patent:

7529888, May 5, 2009

Filed:

Nov 19, 2004

Appl. No.:

10/993957

Inventors:

Michael Kerby Chen - Palo Alto CA, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G06F 12/00

US Classification:

711118, 711144, 711156

Abstract:

In some embodiments, the invention involves a system and method relating to software caching with bounded-error delayed updates. Embodiments of the present invention describe a delayed-update software-controlled cache, which may be used to reduce memory access latencies and improve throughput for domain specific applications that are tolerant of errors caused by delayed updates of cached values. In at least one embodiment of the present invention, software caching may be implemented by using a compiler to automatically generate caching code in application programs that must access and/or update memory. Cache is accessed for a period of time, even if global data has been updated, to delay costly memory accesses. Other embodiments are described and claimed.

US Patent:

7653920, Jan 26, 2010

Filed:

Jan 24, 2005

Appl. No.:

11/041655

Inventors:

Michael A. Chen - Wallingford PA, US

Assignee:

Comcast Cable Communications, LLC - Philadelphia PA

International Classification:

H04H 60/33
H04H 60/32
H04N 7/167
H04L 9/00

US Classification:

725 9, 725 14, 725 31, 380264

Abstract:

A television program ratings method and system includes transferring information associated with households from a cable provider to a ratings provider such that the ratings provider has access to information associated with sampled households and lacks access to information associated with non-sampled households. To this end, identity information and usage information associated with the households are respectively anonymized and encrypted. Knowledge of the identities of the sampled households enables the anonymized identity information and the encrypted usage information for the sampled households to be respectively de-anonymized and decrypted. The ratings provider knows which households are sampled households. As such, the ratings provider de-anonymizes and decrypts the information associated with the sampled households and then uses the de-anonymized and decrypted information to determine television program ratings. The cable provider anonymizes and encrypts the information for all households as the cable provider does not know which households are sampled households.

US Patent:

7680061, Mar 16, 2010

Filed:

Apr 7, 2005

Appl. No.:

11/100881

Inventors:

Walter F. Michel - Glenside PA, US
Michael A. Chen - Wallingford PA, US

Assignee:

Comcast Cable Holdings, LLC - Philadelphia PA

International Classification:

G01R 31/08
H04L 12/28
H04N 7/16
H04N 7/173

US Classification:

370252, 370431, 725 25, 725114

Abstract:

A system and method for identifying which signals provided by a head-end are accessible to CPE of a subscriber in an HFC network. The method includes obtaining a partial list of signals accessible to the CPE, and then applying heuristic rules on the partial list to generate a complete accessible signal list. Obtaining the partial list includes discovering signal information regarding a subset of the signals which are accessible to the CPE; using the discovered signal information to obtain a signal identification of a signal accessible to the CPE; and generating the partial list based on the obtained signal identification. Applying a heuristic rule includes using a bit mask within the obtained signal identification or a naming convention of the obtained signal identification to identify other associated signals. The partial list is then generated based on the obtained signal identification and the signal identifications of the other associated signals.

US Patent:

7694290, Apr 6, 2010

Filed:

Sep 1, 2005

Appl. No.:

11/219089

Inventors:

Lixia Liu - Beijing, CN
Michael K. Chen - Palo Alto CA, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G06F 9/45

US Classification:

717151, 717154, 718102, 718105

Abstract:

A method and system to optimize throughput of executable program code are provided. The system comprises a profiler to receive a representation of a plurality of functions, an aggregator, and a mapper to map the plurality of aggregates to a plurality of processors. The aggregator may be configured to create an aggregate for each function from the plurality of functions thereby creating a plurality of aggregates, choose an optimization action between grouping and duplication based on the number of aggregates in the plurality of aggregates, the number of available processing elements (PEs), and execution time of each aggregate, and perform the chosen optimization action.

US Patent:

7958523, Jun 7, 2011

Filed:

Dec 18, 2009

Appl. No.:

12/641923

Inventors:

Michael A Chen - Wallingford PA, US

Assignee:

Comcast Cable Communications, LLC - Philadelphia PA

International Classification:

H04H 60/33
H04H 60/32
H04N 7/167
H04L 9/00

US Classification:

725 9, 725 14, 725 31, 380264

Abstract:

A television program ratings method and system includes transferring information associated with households from a cable provider to a ratings provider such that the ratings provider has access to information associated with sampled households and lacks access to information associated with non-sampled households. To this end, identity information and usage information associated with the households are respectively anonymized and encrypted. Knowledge of the identities of the sampled households enables the anonymized identity information and the encrypted usage information for the sampled households to be respectively de-anonymized and decrypted. The ratings provider knows which households are sampled households. As such, the ratings provider de-anonymizes and decrypts the information associated with the sampled households and then uses the de-anonymized and decrypted information to determine television program ratings. The cable provider anonymizes and encrypts the information for all households as the cable provider does not know which households are sampled households.