Zheng Wang

US Patent:

6954747, Oct 11, 2005

Filed:

Nov 14, 2000

Appl. No.:

09/712063

Inventors:

Zheng Wang - Cambridge MA, US
Scott A. McFarling - Redmond WA, US
Ken B. Pierce - Seattle WA, US
Ramarathnam Venkatesan - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F017/00
G06F015/18
G06F012/00

US Classification:

706 54, 706 1, 707203

Abstract:

Systems and methods are discussed that allow profile information to be reused by various versions of a program. One illustrative aspect includes a method for comparing versions of a program in binary format. The method includes finding equivalent contents in portions of two versions of the program, finding equivalent structure in the portions of the two versions, and forming a match when a portion of one of the two versions is an equivalence of a portion of the other of the two versions.

US Patent:

7571427, Aug 4, 2009

Filed:

Jun 24, 2004

Appl. No.:

10/874676

Inventors:

Zheng Wang - Cambridge MA, US
Scott A. McFarling - Redmond WA, US
Ken B. Pierce - Seattle WA, US
Ramarathnam Venkatesan - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 9/44
G06F 12/00

US Classification:

717122, 707203

Abstract:

Systems and methods are discussed that allow profile information to be reused by various versions of a program. One illustrative aspect includes a method for comparing versions of a program in binary format. The method includes finding equivalent contents in portions of two versions of the program, finding equivalent structure in the portions of the two versions, and forming a match when a portion of one of the two versions is an equivalence of a portion of the other of the two versions.

US Patent:

7689068, Mar 30, 2010

Filed:

Dec 8, 2008

Appl. No.:

12/329853

Inventors:

Zheng Wang - Cambridge MA, US
Yidong Chong - Cambridge MA, US
John D. Joannopoulos - Belmont MA, US
Marin Soljacic - Belmont MA, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

G02F 1/295
G02B 6/12

US Classification:

385 6, 385129

Abstract:

A waveguide structure is provided. The waveguide structure includes a photonic crystal structure comprising gyromagnetic materials arranged in a two-dimensional lattice formation that exhibits a plurality of one-way modes produced as a result of magneto-optic effects. One or more confining barriers are positioned around the photonic crystal structure so as to allow the one-way modes to propagate through the photonic crystal structure. One or more radiation sources are positioned in or around the photonic crystal structure so as to couple electromagnetic energy into and out of the waveguide. One or more static external magnetic field sources induce the magneto-optic effects such that the one-way modes are allowed to propagate in one direction in the photonic crystal structure.

US Patent:

7871459, Jan 18, 2011

Filed:

Nov 8, 2005

Appl. No.:

11/718864

Inventors:

Maria Flytzani Stephanopoulos - Winchester MA, US
Zheng Wang - Alexandria VA, US
Mann Sakbodin - Newbury Park CA, US

Assignee:

Trustees of Tufts College - Boston MA

International Classification:

B01D 53/02
B01D 53/52

US Classification:

95135, 95136, 95148

Abstract:

Disclosed is a doped cerium oxide sorbent that can effectively and regenerably remove HS in the temperature range of about 500 C. to about 1000 C. Regenerable sorbents (e. g. , ZnO, LaO, CeO) and methods of using them are disclosed that allow cyclic desulfurization from about 300-500 C. , 350-450 C. , and at about 400 C. In one embodiment, the present invention relates to a method of desulfurizing fuel gas comprising passing the fuel gas through the sorbent at a space velocity wherein the sulfur compounds are adsorbed substantially on the surface of the sorbent; and regenerating the sorbent by passing a regenerating gas through the sorbent, wherein substantially all of the sulfur compounds are desorbed from the sorbent surface. In a further embodiment, the method of desulfurizing fuel gas further comprises repeating the aforementioned steps while the fuel processor is in operation. In another embodiment, the step of passing the fuel gas may be preceded by reducing the sorbent by passing a reducing gas through the sorbent.

US Patent:

20040210885, Oct 21, 2004

Filed:

May 10, 2004

Appl. No.:

10/842613

Inventors:

Zheng Wang - Cambridge MA, US
Scott McFarling - Redmond WA, US
Ken Pierce - Redmond WA, US
Ramarathnam Venkatesan - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F009/45

US Classification:

717/158000, 717/130000

Abstract:

Systems and methods are discussed that allow profile information to be reused by various versions of a program. One illustrative aspect includes a method for comparing versions of a program in binary format. The method includes finding equivalent contents in portions of two versions of the program, finding equivalent structure in the portions of the two versions, and forming a match when a portion of one of the two versions is an equivalence of a portion of the other of the two versions.

US Patent:

20080267557, Oct 30, 2008

Filed:

Dec 27, 2006

Appl. No.:

11/616438

Inventors:

Zheng Wang - Cambridge MA, US
Shanhui Fan - Stanford CA, US

International Classification:

G02B 6/26
G02F 1/09

US Classification:

385 16, 359281

Abstract:

A resonator system comprises an optical resonator that supports one or more pairs of nearly degenerate defect states. One or more magnetic domains comprising at least one gyrotropic material in the optical resonator cause magneto-optical coupling between the two states so that the system lacks time-reversal symmetry. In one embodiment, a single magnetic domain is used that dominates induced magneto-optical coupling between the defect states. The above resonator system may be used together with other components such as waveguides to form circulators, add drop filters, switches and memories.

US Patent:

20140025007, Jan 23, 2014

Filed:

Jul 7, 2011

Appl. No.:

13/178109

Inventors:

Massachusetts Institute of Technology - , US
Zheng Wang - Cambridge MA, US
Shunji Egusa - Cleveland Heights OH, US
Noémie Chocat - Cambridge MA, US
John D. Joannopoulos - Belmont MA, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

B32B 1/08
A61M 5/14
B29D 99/00

US Classification:

604131, 264103, 264437, 428392, 428394, 428381, 428376

Abstract:

Disclosed are fibers that include a composite of at least three different materials, where the at least three different materials include a conductor, an insulator, and a non-centrosymmetric material, and where each material is disposed in one or more different cross-sectional regions of the fiber, with each region extending along a common length of the fiber.

US Patent:

20230105010, Apr 6, 2023

Filed:

Sep 15, 2021

Appl. No.:

17/475552

Inventors:

- Fremont CA, US
Raman Venkataramani - Longmont CO, US
Jason Bellorado - San Jose CA, US
Marcus Marrow - Santa Clara CA, US
Zheng Wang - Louisville CO, US

International Classification:

H03M 13/41
H03M 13/39
H03M 13/45
H03M 13/01
G06N 7/00

Abstract:

A cyclo-stationary characteristic of a communications channel and/or storage media is determined. The cyclo-stationary characteristic has K-cycles, K 1. Markov transition probabilities are determined that depend on a discrete phase ϕ=t mod K, wherein t is a discrete time value. An encoder to optimize the Markov transition probabilities for encoding data sent through the communications channel and/or stored on the storage media. The optimized Markov transition probabilities are used to decode the data from the communication channel and/or read from the storage media.