Michael Andrew 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:

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:

52492001, Sep 28, 1993

Filed:

Jul 30, 1991

Appl. No.:

7/737874

Inventors:

Michael Chen - Boston MA
M. Vedat Eyuboglu - Boston MA

Assignee:

Codex Corporation - Mansfield MA

International Classification:

H04B 1500

US Classification:

375 58

Abstract:

The device and method provide precoding and symbol-rate transmitter spectral shaping of signals representative of digital information. The invention improves reliability of reception in the presence of non-Gaussian channel noise. The present invention also provides a flexible way of choosing between linear equalization, precoding without spectral shaping, and precoding with spectral shaping.

US Patent:

54222672, Jun 6, 1995

Filed:

Jan 24, 1990

Appl. No.:

7/471673

Inventors:

Robert R. Yocum - Arlington MA
Robert S. Daves - Reading MA
Michael C. Chen - Lexington MA

International Classification:

C12N 119
C12N 934

US Classification:

43525421

Abstract:

A vector having a gene for resistance to an antibiotic otherwise capable of killing a host yeast cell, the gene being transcribed from a yeast promoter sequence and the vector being capable of being integrated into a chromosome of the host yeast cell; and a diploid or greater ploidy yeast cell transformed by such a vector with heterologous DNA.

US Patent:

52146723, May 25, 1993

Filed:

Apr 6, 1990

Appl. No.:

7/505418

Inventors:

Vedat Eyuboglu - Boston MA
Michael P. Chen - Boston MA

Assignee:

Codex Corporation - Mansfield MA

International Classification:

H04L 2734

US Classification:

375 34

Abstract:

A digital data sequence is mapped into a signal point sequence e(D) for data transmission over a channel h(D) to produce a channel output sequence y(D)=e(D)h(D). e(D) is chosen so that the signal points in the sequence y(D) belong to a class of possible sequences based on the digital data sequence, the class being based on a time-varying trellis code derived from an N-dimensional time-invariant trellis code by using different transformed versions of its underlying lattices for respectively different N-dimensional symbols.

US Patent:

20230040415, Feb 9, 2023

Filed:

Sep 14, 2022

Appl. No.:

17/932260

Inventors:

- Boston MA, US
Michael C. Chen - Norwood MA, US
LuAnn Sabounjian - Holliston MA, US

International Classification:

A61K 31/4418
A61K 9/00
A61P 7/10
A61P 1/16

Abstract:

Disclosed herein are methods of treating lymphedema that include administering a clinically effective amount of deupirfenidone.