Yong Min Lu

US Patent:

7058007, Jun 6, 2006

Filed:

Jan 18, 2000

Appl. No.:

09/484611

Inventors:

Feisal Daruwalla - Santa Clara CA, US
James R. Forster - Los Altos CA, US
Guenter E. Roeck - San Jose CA, US
Joanna Qun Zang - San Jose CA, US
Yong Lu - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/26
H04J 1/16
G06F 11/00
G08C 15/00
G01R 31/08

US Classification:

370216, 370217, 370432, 709239, 712 28

Abstract:

A protection CMTS is available to immediately service a cable modem should that modem's service from a working CMTS fail for any reason. To speed the service transfer (cutover) from the working CMTS to the protection CMTS, the cable modem may preregister with the protection CMTS well before the cutover becomes necessary. The cable modem's registration with both the working CMTS and the protection CMTS preferably employs a single IP address, so that the cable modem need not obtain a new IP address during cutover. While the cable modem may register with both the working CMTS and the protection CMTS, the devices are designed or configured so that only the working CMTS injects a host route for the cable modem into the appropriate routing protocol. Only after cutover to the protection CMTS does the protection CMTS inject its host route.

US Patent:

7113484, Sep 26, 2006

Filed:

Jun 28, 2000

Appl. No.:

09/606503

Inventors:

John T. Chapman - Cupertino CA, US
Daniel W. Crocker - San Jose CA, US
Feisal Y. Daruwalla - Fremont CA, US
Joanna Qun Zang - San Jose CA, US
Yong Lu - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G01R 31/08
G06F 11/00
G08C 15/00
H04J 1/16
H04J 3/14
H04L 1/00
H04L 12/26

US Classification:

370252, 370431, 370465

Abstract:

A dynamic channel change technique is disclosed which may be implemented between nodes and a Head End of an access network. Initially a network device may communicate with the Head End via a first downstream channel and a first upstream channel. When the network device receives a dynamic channel change request which includes instructions for the network device to switch to a second downstream channel, the network device may respond by switching from the first downstream channel to the second downstream channel. Thereafter, the network device may communicate with the Head End via the second downstream channel and first upstream channel. Further, according to a specific embodiment, the dynamic channel change request may also include an upstream channel change request for causing the network device to switch from a first upstream channel to a second upstream channel.

US Patent:

7293516, Nov 13, 2007

Filed:

Mar 30, 2006

Appl. No.:

11/278026

Inventors:

Stephen L. Bailey - Los Gatos CA, US
Lewis D. Madden - Morgan Hill CA, US
Robert G. Bice - Cupertino CA, US
Yong Lu - San Leandro CA, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

B63B 1/14

US Classification:

114 6114, 114 6115

Abstract:

A vertical translation mechanism for reconfiguring the hull form of a reconfigurable vessel having independently movably side hulls and a center hull is disclosed. The vertical translation mechanism includes a hydraulic-force actuator and a nonmetallic bearing. The hydraulic force actuator comprises a rod that is disposed within a hydraulic cylinder. Responsive to changes in hydraulic pressure in the cylinder, the rod is extended or retracted therefrom. Movement of the rod controls the vertical translation of the center hull and its rotational attitude relative to the side hulls.

US Patent:

7656890, Feb 2, 2010

Filed:

Jul 10, 2006

Appl. No.:

11/484288

Inventors:

John T. Chapman - Cupertino CA, US
Daniel W. Crocker - San Jose CA, US
Feisal Y. Daruwalla - Fremont CA, US
Joanna Qun Zang - San Jose CA, US
Yong Lu - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/28
H04J 3/16
H04J 3/22

US Classification:

370431, 370468

Abstract:

A dynamic channel change technique is disclosed which may be implemented between nodes and a Head End of an access network. Initially a network device may communicate with the Head End via a first downstream channel and a first upstream channel. When the network device receives a dynamic channel change request which includes instructions for the network device to switch to a second downstream channel, the network device may respond by switching from the first downstream channel to the second downstream channel. Thereafter, the network device may communicate with the Head End via the second downstream channel and first upstream channel. Further, according to a specific embodiment, the dynamic channel change request may also include an upstream channel change request for causing the network device to switch from a first upstream channel to a second upstream channel.

US Patent:

7672230, Mar 2, 2010

Filed:

Jul 10, 2006

Appl. No.:

11/484249

Inventors:

John T. Chapman - Cupertino CA, US
Daniel W. Crocker - San Jose CA, US
Feisal Y. Daruwalla - Fremont CA, US
Joanna Qun Zang - San Jose CA, US
Yong Lu - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G01R 31/08
G06F 11/00
H04L 1/00
H04L 12/28

US Classification:

370225, 370431

Abstract:

A dynamic channel change technique is disclosed which may be implemented between nodes and a Head End of an access network. Initially a network device may communicate with the Head End via a first downstream channel and a first upstream channel. When the network device receives a dynamic channel change request which includes instructions for the network device to switch to a second downstream channel, the network device may respond by switching from the first downstream channel to the second downstream channel. Thereafter, the network device may communicate with the Head End via the second downstream channel and first upstream channel. Further, according to a specific embodiment, the dynamic channel change request may also include an upstream channel change request for causing the network device to switch from a first upstream channel to a second upstream channel.

US Patent:

7739393, Jun 15, 2010

Filed:

Jan 28, 2002

Appl. No.:

10/058722

Inventors:

Yong Lu - San Jose CA, US
Jin Zhang - Cupertino CA, US
Sunil Khaunte - Santa Clara CA, US
Kartik Chandran - Mountain View CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 15/16

US Classification:

709230, 709207, 709223, 725114, 725116, 725117, 725111, 725 91, 370241, 370242

Abstract:

Disclosed are methods and apparatus for guaranteeing restoration of traffic between one or more cable modems and a backup cable modem termination system upon failure of an active cable modem termination system are disclosed. Subscriber information associated with one or more cable modems are received from an active cable modem termination system. The subscriber information includes one or more subscriber identifiers. For instance, the subscriber information may include a primary subscriber identifier that identifies a particular cable modem as well as a secondary subscriber identifier that is assigned to high priority traffic such as that being transmitted in real-time. In addition, the subscriber information may also include a scheduling type that is further used to categorize the real-time traffic, such as into voice or video traffic. The subscriber information is then prioritized in an order in which the transmission of messages between the one or more cable modems and the backup cable modem are to be restored. For instance, the subscriber information may be prioritized according to time of receipt of the subscriber information, presence of secondary subscriber identifier, and/or scheduling type.

US Patent:

7899907, Mar 1, 2011

Filed:

Dec 30, 2004

Appl. No.:

11/026565

Inventors:

Kwong Ming Tse - Foster City CA, US
David Louie - Ann Arbor MI, US
Ching Kai Huang - San Jose CA, US
Jimin Li - Hayward CA, US
Wenxin Li - Foster City CA, US
Yong Lu - Mountain View CA, US
Tien Huu Nguyen - San Jose CA, US
George Eichholzer - Toronto, CA

Assignee:

Siebel Systems, Inc. - San Mateo CA

International Classification:

G06F 15/16

US Classification:

709225, 709224, 709228, 370231, 370229

Abstract:

A hosting center that is remote from a plurality of customer environments is provided so that users can interact with data from the user's selected customer environment. The data interaction includes bi-directional synchronization of data between that of the hosting center and that of the user's selected customer environment.

US Patent:

8508973, Aug 13, 2013

Filed:

Nov 16, 2010

Appl. No.:

12/946900

Inventors:

Insik Jin - San Jose CA, US
Xiaobin Wang - Chanhassen MN, US
Yong Lu - Edina MN, US
Haiwen Xi - San Jose CA, US

Assignee:

Seagate Technology LLC - Cupertino CA

International Classification:

G11C 11/22

US Classification:

365145, 365158

Abstract:

A method of switching the magnetization orientation of a ferromagnetic free layer of an out-of-plane magnetic tunnel junction cell, the method including: passing an AC switching current through the out-of-plane magnetic tunnel junction cell, wherein the AC switching current switches the magnetization orientation of the ferromagnetic free layer.