Andrew H Au

US Patent:

6498693, Dec 24, 2002

Filed:

Aug 2, 1999

Appl. No.:

09/365429

Inventors:

Andrew Hoan Au - Palo Alto CA
Robert Li - Fremont CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 2736

US Classification:

360 31, 360 66, 360 75, 360 7702

Abstract:

Method and system aspects for calibrating an MR offset in an MR head are presented. A method aspect includes identifying an occurrence of a calibration condition to initiate an MR offset check, and performing the MR offset check to ensure an MR offset value has not changed beyond an acceptable tolerance in order to maintain proper servoing of the MR head. A system aspect includes a hard disk for storing data, a read/write MR head for reading and writing data to/from the hard disk, and a control unit. The control unit performs an MR offset calibration of an MR offset value for the read/write MR head in response to a calibration condition occurring in order to ensure maintenance of the MR offset value within an acceptable tolerance for proper servoing of the read/write MR head.

US Patent:

7304974, Dec 4, 2007

Filed:

May 14, 2004

Appl. No.:

10/846089

Inventors:

Minglei Yang - Fremont CA, US
Wen-lin Tsao - Fremont CA, US
Andrew Au - San Jose CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04Q 7/24
H04L 12/28
H04J 3/16

US Classification:

370338, 370352, 370401, 370466

Abstract:

An apparatus for supporting a network behind a wireless station includes a gateway that can receive from a wireless station a request for a communications session. The gateway can determine whether to authenticate the communications session, and, in response to determining to authenticate the communications session, request from a server network addresses for network devices behind the wireless station. The gateway can receive the requested network addresses from the server, associate the received network addresses with the wireless station, and establish the communications session.

US Patent:

7327746, Feb 5, 2008

Filed:

Aug 8, 2003

Appl. No.:

10/638144

Inventors:

Andrew Wan-yeung Au - Cupertino CA, US
Jayaraman R. Iyer - Sunnyvale CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/28

US Classification:

370410, 400401, 400498, 400529

Abstract:

A method for detecting and directing traffic in a network environment is provided that includes receiving a packet included within a communication flow that is initiated by a mobile terminal and setting a flag within the packet. The method further includes directing the packet to a next destination by recognizing that the flag included within the packet was set and therefore is associated with a mobile-to-mobile communication session.

US Patent:

7437616, Oct 14, 2008

Filed:

Dec 15, 2005

Appl. No.:

11/304425

Inventors:

Emil Lambrache - Campbell CA, US
Benjamin F. Froemming - San Jose CA, US
Andrew K. Au - Fremont CA, US

Assignee:

Atmel Corporation - San Jose CA

International Classification:

G06F 11/00

US Classification:

714 43

Abstract:

The same microcontroller chip is configured to be either a Target version or a Link version of a microcontroller. The Target version runs an application program. To debug the Target microcontroller, the Link version of the microcontroller functions as a master debug microcontroller to the slave Target microcontroller running the application program. The Link microcontroller runs an interface translator program between a Host computer that runs a debug program, and the Target microcontroller. The Link microcontroller communicates with the Target microcontroller using a fast, 2-wire interface. The Link microcontroller communicates with the Host computer through a general purpose interface.

US Patent:

7852864, Dec 14, 2010

Filed:

Jan 2, 2008

Appl. No.:

11/968301

Inventors:

Andrew Wan-yeung Au - Cupertino CA, US
Jayaraman R. Iyer - Sunnyvale CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/28

US Classification:

370410, 370400, 370401, 370498, 370529

Abstract:

A method for detecting and directing traffic in a network environment is provided that includes receiving a packet included within a communication flow that is initiated by a mobile terminal and setting a flag within the packet. The method further includes directing the packet to a next destination by recognizing that the flag included within the packet was set and therefore is associated with a mobile-to-mobile communication session.

US Patent:

51480050, Sep 15, 1992

Filed:

Dec 22, 1989

Appl. No.:

7/455715

Inventors:

Shou-Mean Fang - Union City CA
David A. Horsma - Palo Alto CA
Guillaume Peronnet - Palo Alto CA
Timothy E. Fahey - Williamsport PA
Andrew N. Au - Fremont CA
William D. Carlomagno - Redwood City CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

H05B 102

US Classification:

219505

Abstract:

Circuit protection devices which comprise a PTC conductive polymer element and a second electrical component which is thermally coupled to the PTC element and which, when a fault causes the current in the circuit to become excessive, generates heat which is transferred to the PTC element, thus reducing the time taken to "trip" the PTC element. The second component is for example a voltage-dependent resistor which is connected in series with the PTC element under the fault conditions and is thus protected from damage. Alternatively, the second component is a thick film resistor which is connected in series with the PTC element.

US Patent:

47805986, Oct 25, 1988

Filed:

Feb 4, 1988

Appl. No.:

7/150005

Inventors:

Timothy E. Fahey - San Jose CA
William D. Carlomagno - Redwood City CA
Andrew N. Au - Union City CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

H05B 102

US Classification:

219511

Abstract:

Circuit protection devices which comprise a PTC conductive polymer element and a second electrical component which is thermally coupled to the PTC element and which, when a fault causes the current in the circuit to become excessive, generates heat which is transferred to the PTC element, thus reducing the time taken to "trip" the PTC element. The second component is for example a voltage-dependent resistor which is connected in series with the PTC element under the fault conditions and is thus protected from damage.

US Patent:

48854573, Dec 5, 1989

Filed:

Sep 30, 1988

Appl. No.:

7/252229

Inventors:

Andrew N. Au - Fremont CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

H05B 334

US Classification:

219548

Abstract:

A method of making a conductive polymer sheet in which a hollow conductive polymer extrudate is slit and flattened. The resulting sheet may have improved resistivity uniformity over conventionally extruded sheet. The sheet is useful in producing electrical devices such as heaters and circuit protection devices.