Wei Zhao

US Patent:

6553225, Apr 22, 2003

Filed:

Oct 14, 1999

Appl. No.:

09/417592

Inventors:

Wei Zhao - Germantown MD 20874
David Roos - Boyds MD 20841

International Classification:

H04Q 720

US Classification:

455427, 455429, 455430, 455 121, 370443, 370348, 370508

Abstract:

An apparatus and method, for use in a satellite-based communications network, for positioning offset zones in a spot beam coverage area to maximize call duration. The apparatus and method employs a spot beam segregator and an offset zone arranger. The spot beam segregator segregates a coverage area of a spot beam generated by a satellite in the network into at least one offset zone based on respective propagation time periods required for signals to travel between the satellite and respective different locations in the coverage area. The offset zone arranger arranges each offset zone such that each respective center of each one offset zone overlaps a respective geographical location in the coverage area, with each respective geographic location having a respective access terminal density greater than any other geographical region within its respective offset zone. The burst offset to be assigned to each single-offset zone is then determined based on the propagation delay at each respective highest access terminal density region in the respective zones. Therefore, within each offset zone, the amount of access terminals whose guard time between bursts received and transmitted is optimized, and call duration is effectively maximized.

US Patent:

6996372, Feb 7, 2006

Filed:

Jun 28, 2002

Appl. No.:

10/185256

Inventors:

Anthony Noerpel - Lovettsville VA, US
Wei Zhao - Germantown MD, US
Fei Yang - Columbia MD, US
Kennon Cogdell - Rockville MD, US

Assignee:

Hughes Electronics Corporation - El Segundo CA

International Classification:

H04B 7/185

US Classification:

455 671, 455 121, 455434, 455435

Abstract:

A method is presented describing how information and data is exchanged between a user's access terminal's mobility management and radio resource software layer in a satellite based telecommunications system, wherein the telecommunication system comprises one or more satellites, new and existing gateways, and a user's access terminal, which comprises a mobility management and radio resource software layer, the method pertaining to data and information flow between them, in response to various stimuli and conditions as the user enters into and out of various modes of operations, including deactivation, activation and illumination of a dark beam of a spot beam that is a shared resource.

US Patent:

7058403, Jun 6, 2006

Filed:

Jun 28, 2002

Appl. No.:

10/185277

Inventors:

Wei Zhao - Germantown MD, US
Anthony Noerpel - Lovettsville VA, US
Abheek Saha - New Delhi, IN
Sandeep Verma - New Delhi, IN
Tom Peters - Dayton MD, US

Assignee:

Hughes Network Systems, LLC - Germantown MD

International Classification:

H04Q 7/20

US Classification:

4554351, 455427, 455 121, 455428, 455430, 455429, 455 132, 455437, 370316, 709203, 709105

Abstract:

A state transition diagram is presented for a user's access terminal for a satellite telecommunication system, showing the state of the access terminal's mobility management software layer, in response to various stimuli and conditions as the user enters into and out of various modes of operations, including deactivation, activation and illumination of a dark beam of a spot beam that is a shared resource.

US Patent:

20030050072, Mar 13, 2003

Filed:

Jun 26, 2002

Appl. No.:

10/183838

Inventors:

Anthony Noerpel - Lovettsville VA, US
Wei Zhao - Germantown MD, US
Sandeep Verma - New Delhi, IN
Mark Quinn - Gaithersburg MD, US
Van Hudson - Columbia MD, US
Abheek Saha - New Delhi, IN

International Classification:

H04Q007/20

US Classification:

455/452000, 455/427000, 455/012100, 455/450000

Abstract:

A system and method is presented for the illumination of a dark beam when a new access terminal enters into the spot beam, and requests, through an existing gateway, the new service of a new gateway. New messages and system information elements and methods for using them are described to facilitate the illumination of the dark beam, the darkening of an illuminated beam, and situations when incomplete requests are received and when a dark beam cannot be illuminated.

US Patent:

20110266529, Nov 3, 2011

Filed:

Apr 26, 2011

Appl. No.:

13/094608

Inventors:

Wei ZHAO - Gainesville FL, US
Yabing QI - Plainsboro NJ, US
Antoine KAHN - Princeton NJ, US
Seth MARDER - Atlanta GA, US
Stephen BARLOW - Atlanta GA, US

Assignee:

THE TRUSTEES OF PRINCETON UNIVERSITY - Princeton NJ
GEORGIA TECH RESEARCH CORPORATION - Atlanta GA

International Classification:

H01L 51/30

US Classification:

257 40, 257E51005

Abstract:

Organic electronic devices comprising “remotely” doped materials comprising a combination of at least three layers. Such devices can include “remotely p-doped” structures comprising: a channel layer comprising at least one organic semiconductor channel material; a dopant layer, which comprises at least one p-dopant material and optionally at least one organic hole transport material; and a spacer layer disposed between and in electrical contact with both the channel layer and the dopant layer, comprising an organic semiconducting spacer material; or alternatively can include “remotely n-doped” structures comprising a combination of at least three layers: a channel layer comprising at least one organic semiconductor channel material; a dopant layer which comprises at least one organic electron transport material doped with an n-dopant material; and a spacer layer disposed between and in electrical contact with the channel layer and the dopant layer, comprising an organic semiconducting spacer material. Such devices include “remotely doped” field effect transistors comprising the doped structures described above.

US Patent:

6332069, Dec 18, 2001

Filed:

Feb 10, 1999

Appl. No.:

9/244970

Inventors:

Wei Zhao - Germantown MD
Steven Arnold - Ijamsville MD
Anthony Noerpel - Lovettsville VA
Dave Roos - Boyds MD

Assignee:

Hughes Electronics Corporation - El Segundo CA

International Classification:

H04B 7185

US Classification:

455 121

Abstract:

An apparatus and method, for use in a satellite-based communications network, for minimizing blocking of communication between the network and access terminals resulting from differences in the signal propagation delays for the access terminals due to their different locations within a coverage area serviced by a spot beam generated by a satellite in the network. The apparatus includes a spot beam segregator which segregates a coverage area of the spot beam into at least one coverage zone based on the maximum and minimum propagation delay experienced by access terminals within the coverage area of the spot beam. The apparatus further includes a carrier grouper which groups the carrier into a number of groups corresponding to the number of offset zones, and assigns each carrier group to a respective one of the coverage zones. The number of carriers assigned to each carrier group is proportional to the estimated number of access terminals located in the respective coverage zone to which the carrier group is assigned. The apparatus assigns a respective burst offset to each respective coverage zone so that signals being transmitted by the satellite and access terminals within the coverage zone are transmitted in accordance with the same burst offset.

US Patent:

20210300869, Sep 30, 2021

Filed:

Sep 25, 2020

Appl. No.:

17/032428

Inventors:

- Madison NJ, US
Lawrence Wayne Dillard - Yardley PA, US
Yi Fan - Doylestown PA, US
Stephen D. Lotesta - Burlington NJ, US
Suresh B. Singh - Kendall Park NJ, US
Colin M. Tice - Maple Glen PA, US
Wei Zhao - North Potomac MD, US
Linghang Zhuang - Chalfont PA, US

International Classification:

C07D 209/10
C07D 405/14
C07D 401/06
C07D 235/10
C07D 235/12
C07D 401/12
C07D 405/06
C07D 471/04
C07D 235/26
C07D 401/14

Abstract:

Provided are indole, benzoimidazole, pyrrolopyridine, and imidazopyridine derivatives and pharmaceutical compositions thereof, which are useful in the treatment of diseases and disorders mediated by ROR. Such derivatives include e.g., those having the Formula II.as well as pharmaceutically acceptable salts thereof. The disclosed derivatives may be used for treating one or more inflammatory, metabolic, autoimmune and other diseases or disorders.

US Patent:

20210238174, Aug 5, 2021

Filed:

Sep 9, 2020

Appl. No.:

17/015825

Inventors:

- Madison NJ, US
Lawrence Wayne Dillard - Yardley PA, US
Chengguo Dong - Staten Island NY, US
Yi Fan - Doylestown PA, US
Lanqi Jia - Horsham PA, US
Zhijie Liu - Harleysville PA, US
Stephen D. Lotesta - Burlington NJ, US
Andrew Marcus - Media PA, US
Suresh B. Singh - Kendall Park NJ, US
Colin M. Tice - Maple Glen PA, US
Jing Yuan - Lansdale PA, US
Wei Zhao - North Potomac MD, US
Yajun Zheng - Hockessin DE, US
Linghang Zhuang - Chalfont PA, US

International Classification:

C07D 471/04
C07D 519/00

Abstract:

Provided are novel compounds of Formula (I):pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof, which are useful in the treatment of diseases and disorders mediated by RORγ. Also provided are pharmaceutical compositions comprising the novel compounds of Formula (I) and methods for their use in treating one or more inflammatory, metabolic, autoimmune and other diseases or disorders.