Chang O Xu

US Patent:

6397345, May 28, 2002

Filed:

Oct 9, 1998

Appl. No.:

09/169361

Inventors:

Paul Edmonds - Palo Alto CA
Yi Zhang - Sunnyvale CA
Chang Xu - San Jose CA
Priyen Doshi - San Jose CA
Stephen Co - San Ramon CA
Michael P. Tel - Sunnyvale CA
Andy Chan - Milpitas CA

Assignee:

Openwave Systems Inc. - Redwood City CA

International Classification:

H02H 305

US Classification:

714 4, 714 11

Abstract:

A computer system includes a plurality of interdependent processors. Each interdependent processor executes an independent operating system image without sharing file system state information, and each interdependent processor further has a network access card with a first network connection and a second network connection. The computer system has a first active backplane coupled to each first network connection of each processor; a second active backplane coupled to each second network connection of each processor, the second active backplane operating in lieu of the first active backplane in case of a fail-over; and one or more peripherals connected to each of the first and second active backplanes and responsive to data requests transmitted over the first and second active backplanes.

US Patent:

6412079, Jun 25, 2002

Filed:

Oct 9, 1998

Appl. No.:

09/169838

Inventors:

Paul Edmonds - Palo Alto CA
Yi Zhang - Sunnyvale CA
Chang Xu - San Jose CA
Priyen Doshi - San Jose CA
Stephen Co - San Ramon CA
Michael P. Tel - Sunnyvale CA
Andy Chan - Milpitas CA

Assignee:

Openwave Systems Inc. - Redwood City CA

International Classification:

H02H 305

US Classification:

714 11, 714 13

Abstract:

A computer system includes a plurality of interdependent processors for operating a common set of applications. Each interdependent processor executes an independent operating system image without sharing file system state information. Each interdependent processor has a network access card with a first network connection and a second network connection. The computer system includes a first active backplane coupled to each first network connection of each processor; a second active backplane coupled to each second network connection of each processor, the second active backplane operating in lieu of the first active backplane in case of a fail-over; and one or more directors coupled to the first and second active backplanes, each of the one or more directors load-balancing requests directed at a plurality of servers.

US Patent:

7286990, Oct 23, 2007

Filed:

Jan 21, 2000

Appl. No.:

09/889911

Inventors:

Paul Edmonds - Palo Alto CA,
Yi Zhang - Sunnyvale CA,
George Sollman - Atherton CA,
Michael P. Tel - Sebastopol CA,
Chang Xu - Mountain View CA,
Priyen Doshi - San Jose CA,
Stephen Co - Foster City CA,
David Weinstein - Palo Alto CA,
Andy Chan - San Mateo CA,

Assignee:

Openwave Systems Inc. - Redwood City CA

International Classification:

G10L 21/06

US Classification:

704275

Abstract:

An interface for accessing data from one or more information systems using a wireless telephone or other user device. The interface is presented to a user as an abstraction of a unified mailbox and permits access by the user to messaging and other services from the wireless device. The interface is coupled to one or more converting modules to convert user inputs from the format in which they are received into a format that may be input to the desired information system.

US Patent:

6230190, May 8, 2001

Filed:

Oct 9, 1998

Appl. No.:

9/169360

Inventors:

Paul Edmonds - Palo Alto CA
Yi Zhang - Sunnyvale CA
Chang Xu - San Jose CA
Priyen Doshi - San Jose CA
Stephen Co - San Ramon CA
Michael P. Tel - Sunnyvale CA
Andy Chan - Milpitas CA

Assignee:

Openwave Systems Inc. - Redwood City CA

International Classification:

G06F 15167

US Classification:

709213

Abstract:

A computer system has a plurality of processors, each processor executing an independent operating system image without sharing file system state information. The system includes an active backplane coupled to the plurality of processors; and one or more data storage devices coupled to the active backplane for satisfying data requests from the plurality of processors, each of the data storage devices being adapted to secure a file when one processor writes to the file and to release the file when the processor completes operation on the file.