Michael S Chen

US Patent:

7152115, Dec 19, 2006

Filed:

Jul 9, 2002

Appl. No.:

10/191660

Inventors:

Hamid H. Ould Brahim - Kanata, CA
Dinesh Mohan - Ottawa, CA
Vasile Radoaca - Burlington MA, US
Michael Chen - Chapel Hill NC, US

Assignee:

Nortel Networks Limited

International Classification:

G06F 15/173
H04L 12/66
G01R 31/08

US Classification:

709238, 709239, 709240, 709241, 709242, 709243, 370216, 370352, 370353, 370354

Abstract:

A network can be organized for providing virtual private network services to customers into two regions. A network core for providing layer transport and an associated number of logical provider edges. Each logical provider edge is partitioned into first and second portions. The first portion provides virtual private network services to customers. The second portion works with the core network to communicate with any other logical provider edge within the network. The first portion designated as the PE-Edge includes a group of functions such as a function for configuring optical Ethernet layer virtual private network service, a function for service labeling, a function for ingress traffic management, and a function for information exchange between local VPN and core VPN. The second portion designated as PE-Core includes a group of functions such as a function for distributing service labels, a function for distributing information on transport tunnels, a function for information exchange between local and core VPN. Within the logical provider edge or Logical PE, the PE-Edge and PE-Core communicate via a layer network.

US Patent:

7924159, Apr 12, 2011

Filed:

Jan 30, 2008

Appl. No.:

12/022300

Inventors:

Kan Ota - Bedford MA, US
Michael Chen - Danvers MA, US
David K. Bernhardt - Hudson MA, US

Assignee:

Axcelis Technologies Inc. - Beverly MA

International Classification:

G08B 13/14

US Classification:

3405721, 438480, 438506, 438514

Abstract:

The present invention involves a system and method of remotely detecting the presence of a wafer comprising, a passive RFID circuit, wherein the RFID circuit is attached to an end of a transfer arm located inside a vacuum chamber of an ion implantation system, a reader located outside the vacuum chamber, and wherein the RFID tag provides an indication relating to whether or not a wafer is secured by the transfer arm.

US Patent:

20060281443, Dec 14, 2006

Filed:

May 18, 2005

Appl. No.:

11/132727

Inventors:

Michael Chen - Pittstown NJ, US
Robert Ephraim - Bridgewater NJ, US
Tyler McCue - Lantana TX, US
Michael Austin - Roanoke TX, US

International Classification:

H04M 11/10

US Classification:

455413000

Abstract:

A method and system is disclosed for facilitating voice mailbox operations for a mobile phone capable of operating in both a CDMA and a GSM environment. The system has at least first and second switching points and a global switching point in communication with a control point. Upon a first switching point detecting a busy/no answer condition for a request to terminate a call to a called station (the call originating from a calling station), the first switching point forwards the terminating call to a temporary, unique forward-to number belonging to the global switching point which then sends at least one message to the control point, the at least one message identifying the unique forward-to number designating a voice mailbox. The control point then identifies the second switching point from the unique forward-to number and sends a first call treatment message instructing the second switching point to apply voicemail treatment at a voice mailbox linked thereto.

US Patent:

20080101241, May 1, 2008

Filed:

Mar 16, 2007

Appl. No.:

11/724981

Inventors:

Dinesh Mohan - Kanata, CA
Christopher Monti - Tyngsboro MA, US
Piotr Romanus - Andover MA, US
David Tsang - Sudbury MA, US
Michael Chen - Chapel Hill NC, US

Assignee:

Nortel Networks Limited - St. Laurent

International Classification:

H04L 12/26

US Classification:

3702362, 370392

Abstract:

OAM may be implemented at an intermediate node on a PBT trunk in an Ethernet network by causing OAM frames to be addressed to the PBT trunk endpoint but causing the OAM frames to carry an indicia (Ether-type, OpCode, TLV value or combination of these and other fields) that the OAM frames are intended to be used for intermediate node OAM functions. The Ether-type, OpCode, and TLV values may be standardized values, or vendor specific values such as OpCode=51 or TLV=31 may be used. Addressing the OAM frames to the PBT trunk end point enables the OAM frames to follow the PBT trunk through the network. The OAM indicia signals to the intermediate nodes that the OAM frames are intended to be used to perform an intermediate node OAM function. The OAM frames may contain reverse trunk information to prevent the intermediate nodes from being required to store correlation between forward and reverse PBT trunks.

US Patent:

48661678, Sep 12, 1989

Filed:

Aug 26, 1985

Appl. No.:

6/769565

Inventors:

Michael C. Chen - Lexington MA
Pearl M. Chen - Lexington MA
Lynn C. Klotz - Cambridge MA

Assignee:

Biotechnica Diagnostics, Inc. - Cambridge MA

International Classification:

C07H 2100
C12Q 168
C12Q 100

US Classification:

536 27

Abstract:

A probe for the detection, in a sample obtained from the mouth of a human patient, of a microbial or human cell associated with a human oral medical disorder, the probe consisting essentially of a segment of DNA or RNA capable of selectively hybridizing, under hybridizing conditions, to single-stranded DNA of the cell.

US Patent:

45240507, Jun 18, 1985

Filed:

Jul 8, 1983

Appl. No.:

6/512288

Inventors:

Michael S. Chen - Zionsville PA
Thomas J. Edwards - Allentown PA
William R. Ernst - Roswell GA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C01B 1700

US Classification:

423243

Abstract:

Hydrolysis of COS in gas streams to H. sub. 2 S and CO. sub. 2 can be improved by using certain bicyclo tertiary amine catalysts. Bicyclo tertiary amine catalysts can enhance COS hydrolysis in an acid gas removal solvent in the liquid phase or on a solid support system in the gas phase.

US Patent:

49352210, Jun 19, 1990

Filed:

Jun 13, 1988

Appl. No.:

7/206061

Inventors:

James C. Bronfenbrenner - Allentown PA
Michael S. Chen - Zionsville PA
M. Moniz - Wescosville PA
Pradip Rao - Allentown PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

B01D 4300
B01D 4706
C01B 1702
C01B 1705

US Classification:

423574R

Abstract:

An apparatus and process are described for the cooling and condensing of sulfur and water vapors from a Claus gas below the sulfur freezing point (248. degree. F. ) at low pressure (

US Patent:

45565465, Dec 3, 1985

Filed:

Aug 14, 1984

Appl. No.:

6/640500

Inventors:

William F. Burgoyne - Allentown PA
Michael S. Chen - Zionsville PA
Dale D. Dixon - Kutztown PA
Thomas J. Edwards - Allentown PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

B01D 5334

US Classification:

423226

Abstract:

A process is set forth for the selective removal of acid gases such as H. sub. 2 S, COS and CO. sub. 2 from a gas stream by contacting the stream with a bis tertiary amino alkyl solvent compound such as 4,4'-(oxydi-2,1-ethanediyl) bismorpholine. When used in an aqueous solution, the compounds catalytically hydrolyze COS to H. sub. 2 S and CO. sub. 2.