Sihai Zhao Huiping Xiao

US Patent:

7979550, Jul 12, 2011

Filed:

May 24, 2007

Appl. No.:

11/753156

Inventors:

Sihai Xiao - Fremont CA, US
Yanghua Liu - San Jose CA, US

International Classification:

G06F 15/173

US Classification:

709226, 709223, 709224

Abstract:

In one embodiment, the systems and methods determine an initial bandwidth at a client device; allocate an allocated bandwidth to the client device between a first server and a second server; monitor the allocated bandwidth; and adjust the allocated bandwidth based on a target bandwidth from the first server to the client.

US Patent:

8131828, Mar 6, 2012

Filed:

Oct 3, 2008

Appl. No.:

12/245595

Inventors:

Jian Lin - Pleasant Hill CA, US
Zheng Yuan - San Jose CA, US
Weixin Xia - Fremont CA, US
Yongya Wang - Zhejiang, CN
Sihai Xiao - Fremont CA, US
Ilan Kasan - Sunnyvale CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 15/177
G06F 15/173
H04L 12/16
H04N 7/14

US Classification:

709220, 709229, 709239, 370270, 348 1408

Abstract:

In an embodiment, a hosted-on-premises meeting exchange server operates seamlessly with web meeting servers. For example, one computer-implemented method comprises receiving a request from a client computer to join a web meeting; determining whether the client computer is coupled to a local network which includes an on-premises-meeting exchange server; in response to determining that the client computer is coupled to the local network, joining the client computer to the web meeting at the on-premises-meeting exchange server when the on-premises-meeting exchange server has sufficient capacity, and otherwise joining the client computer to the web meeting at an off-premises-meeting exchange server; and in response to determining that the client computer is not coupled to the local network, joining the client computer to the web meeting at the off-premises-meeting exchange server.

US Patent:

8190745, May 29, 2012

Filed:

Jun 14, 2011

Appl. No.:

13/159671

Inventors:

Sihai Xiao - Fremont CA, US
Yanghua Liu - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 15/173

US Classification:

709226, 709223, 709224

Abstract:

In one embodiment, a participant device joins a collaboration session among a plurality of participant devices. The content shared within the collaboration session includes lower-priority data and higher-priority data. An initial available bandwidth for use with the collaboration session is determined. Based on the initial available bandwidth and an expected second bandwidth for higher-priority data shared within the collaboration session, a first bandwidth is allocated for lower-priority data shared within the collaboration session. During the collaboration session, an actual second bandwidth for the higher-priority data shared within the collaboration session is monitored. The expected second bandwidth is compared to the monitored actual second bandwidth, and a bandwidth variant is determined. Based on the determined bandwidth variant, the first bandwidth allocated for the lower-priority data shared within the collaboration session is adjusted to increase the bandwidth allocated for the lower-priority data.

US Patent:

8250141, Aug 21, 2012

Filed:

Jul 7, 2008

Appl. No.:

12/168181

Inventors:

Sihai Xiao - Fremont CA, US
Zheng Yuan - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 15/16

US Classification:

709204

Abstract:

In one embodiment, a determination is made that a specified event of a collaborative computing session has occurred. In response to the specified event, a real-time electronic notification is transmitted to a particular set of one or more attendees of the session that the event has occurred, the notification illustratively transmitted via a communication channel other than the session.

US Patent:

8578465, Nov 5, 2013

Filed:

Jul 21, 2009

Appl. No.:

12/506321

Inventors:

Sihai Xiao - Fremont CA, US
Zheng Yuan - San Jose CA, US
David Knight - Belmont CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 21/00

US Classification:

726 10, 726 5, 726 9, 726 11, 709204, 709223, 709224, 709229

Abstract:

In one embodiment, a client device may send one or more sub-session requests to one or more corresponding session controllers through a computer network to obtain one or more corresponding sub-session tokens that indicate in which sub-sessions of an online collaborative computing session the client device is permitted to participate. The client device may then receive particular sub-session tokens (e. g. , based on certain permissions), which may then be sent to a collaboration server to establish one or more permitted sub-sessions of the online collaborative computing session with the client device as indicated by the received sub-session tokens.

US Patent:

20020152382, Oct 17, 2002

Filed:

Jan 25, 2002

Appl. No.:

10/057066

Inventors:

Sihai Xiao - Fremont CA, US

International Classification:

H04L009/00

US Classification:

713/173000

Abstract:

A unique TIO based trust information delivery scheme is disclosed that allows clients to verify received certificates and to control Java and Javascript access efficiently. This scheme fits into the certificate verification process in SSL to provide a secure connection between a client and a Web server. In particular, the scheme is well suited for incorporation into consumer devices that have a limited footprint, such as set-top boxes, cell phones, and handheld computers. Furthermore, the TIO update scheme disclosed herein allows clients to update certificates securely and dynamically.

US Patent:

60760974, Jun 13, 2000

Filed:

Dec 11, 1997

Appl. No.:

8/988781

Inventors:

Thomas Bennet London - Mountain View CA
Karl Andres Siil - Princeton NJ
Sihai Xiao - Fremont CA

Assignee:

AT&T Corp. - New York NY

International Classification:

G06F 102

US Classification:

708250

Abstract:

Random data is derived from the value of the elapsed time over which a loop is counted on a multitasking computer. The random data can be manipulated and whitened to produce random numbers of arbitrary length that pass both chi-squared and compression tests for randomness. The present invention does not rely on devices such as noise generators, leaky capacitors, gas discharge tubes, or keyboard strokes to generate random data, and reliably generates random data at a substantially higher rate than other systems and methods that can be implemented using only a general purpose computer executing instructions stored in computer readable memory. The present invention is advantageously portable among UNIX-based platforms, and operates without occupying UNIX timers or signals.