Minh Ngoc Vu

US Patent:

6744593, Jun 1, 2004

Filed:

Oct 13, 2000

Appl. No.:

09/689837

Inventors:

Ashok B. Nayak - Glendora CA
Robert R. Heinze - San Clemente CA
Minh M. Vu - Midway City CA
Son Hung Truong - Westminster CA
James M. Decot - Fountain Valley CA
John A. Hamming - Laguna Niguel CA
Robert Lindner - Mission Viejo CA

Assignee:

Seagate Technology LLC. - Scotts Valley CA

International Classification:

G11B 1560

US Classification:

360 95, 36013021, 36013031, 242348

Abstract:

A tape drive having a cartridge receiving area for receiving a cartridge containing a recording medium on a supply reel is disclosed. The tape drive has a take-up reel. The take-up reel includes a take-up rotatably mounted to the tape drive and a pair of flanges mounted on either side of the take-up hub. A magnetic read/write head is disposed between the cartridge receiving area and the take-up reel. A pair of fixed guide assemblies is disposed symmetrically about the magnetic read/write head. Each of the fixed guide assemblies has a fixed guide mount fixed to the tape drive, a fixed guide attached to a top of the fixed guide mount, and a spring/pressure pad having at least one pressure pad mounted to the fixed guide, wherein the pressure pad applies pressure to a top edge of the recording medium when the tape drive is operational. The tape drive also has a forward guide roller and a rearward guide roller disposed symmetrically about the magnetic read/write head. The forward guide roller is located between the cartridge receiving area and the one of the pair of fixed guide assemblies and the rearward guide roller is located between the take-up reel and the other of the fixed guide assemblies.

US Patent:

7630385, Dec 8, 2009

Filed:

Aug 4, 2006

Appl. No.:

11/462669

Inventors:

Randy I. Oyadomari - San Jose CA, US
George A. Bullis - Glendora CA, US
Minh Q. Vu - San Jose CA, US

International Classification:

H04Q 11/00
H04L 12/28
G06F 15/16
G06F 11/00

US Classification:

370400, 370218, 370252, 370386, 370466, 709220, 709238, 709250, 714 11, 714 27, 714 46, 714 57

Abstract:

Creation of port domains in a multi-chassis system. The multi-chassis system includes two or more chassis that each includes one or more blades. In one embodiment, a sync group of at least two chassis is created, typically by connecting the two or more chassis with an interconnection means such as a sync-cable. Then, two or more ports of the sync group are selected for inclusion in a port domain. The locations of the ports relative to each other is then determined. Finally, a port domain is generated based on the relative locations of the ports and port domain generation rules. If the ports are on separate chassis, then a global domain is generated if a predetermined number of global domains do not already exist and if the ports are on the same chassis, a local domain is generated regardless of the number of global domains.

US Patent:

7764695, Jul 27, 2010

Filed:

Sep 25, 2006

Appl. No.:

11/534916

Inventors:

Randy I. Oyadomari - San Jose CA, US
George A. Bullis - Glendora CA, US
Minh Q. Vu - San Jose CA, US

International Classification:

H04Q 11/00
H04L 12/56

US Classification:

370400, 370218, 370252, 370386, 370466, 709220, 709238, 709250, 714 11, 714 27, 714 46, 714 57

Abstract:

A multi-chassis system includes at least a first chassis and a second chassis that each includes one or more blades. The one or more blades in turn include one or more ports. The two or more chassis are connected through use of an interconnector. The multi-chassis system may also include access to one or more microprocessors that may execute thereon software that controls the propagation of the arm condition. The arm condition is generated at a first port of a first chassis or network analyzer blade coupled to the first chassis. The arm condition is then transmitted to one or more additional ports of the first chassis while not being transmitted to any ports of the second chassis. Finally, the reception of a precondition for triggering defined by the arm condition is limited to those ports that have received the arm condition.

US Patent:

7945419, May 17, 2011

Filed:

Aug 14, 2008

Appl. No.:

12/191823

Inventors:

Ming-chih Weng - Los Angeles CA, US
Turguy Goker - Solana Beach CA, US
James Mark Decot - Fountain Valley CA, US
Minh Vu - Midway City CA, US
John A. Hamming - San Clemente CA, US

Assignee:

Quantum Corporation - San Jose CA

International Classification:

G01P 3/00
G11B 15/52

US Classification:

702145, 702142, 360 7311, 360 7505

Abstract:

In a method of electronically measuring reel off-center run-out and reel hub mismatch, tape speed data related to a tape coupled with an operating drive reel is electronically measured. The tape speed data is correlated with drive reel rotation angles. The correlated tape speed data is translated to drive reel hub radii variations with respect to the drive reel rotation angles. The drive reel hub radii variations comprise an operational measure of reel off-center run-out and reel hub mismatch of the drive reel.

US Patent:

8468037, Jun 18, 2013

Filed:

Mar 28, 2012

Appl. No.:

13/432788

Inventors:

Geoffrey Clarke - Foster City CA, US
Kenneth William Branson - Los Altos CA, US
Minh Vu - Milpitas CA, US

Assignee:

Guidewire Software, Inc. - Foster City CA

International Classification:

G06Q 40/08

US Classification:

705 4

Abstract:

Managing risks associated with reinsurance includes: obtaining a plurality of insurance policies, each of the plurality of insurance policies comprising a plurality of coverages; identifying, for each insurance policy in the plurality of insurance policies, a set of coverages that corresponds to a geographical location, a policy level liability, or a covered item; and evaluating, for each identified set of coverages, a corresponding reinsurable risk, the evaluation includes determining a total insured value associated with the corresponding reinsurable risk.

US Patent:

59561688, Sep 21, 1999

Filed:

Sep 5, 1997

Appl. No.:

8/924852

Inventors:

Frank H. Levinson - Palo Alto CA
William R. Freeman - Castro Valley CA
Daniel S. Kane - San Francisco CA
Minh Q. Vu - San Jose CA

Assignee:

Finisar Corporation - Mountain View CA

International Classification:

H04B 1000

US Classification:

359152

Abstract:

A dual optical fiber transceiver, for use with first and second optical fibers, includes a laser transmitter for transmitting laser light into the first optical fiber, a laser light receiver for receiving laser light from the second optical fiber, and a controller coupled to the laser transmitter and laser light receiver. The controller includes a multi-protocol state machine for establishing the full duplex connection whenever the other device operates in compliance with either (A) a predefined "on-off-on" signaling protocol for establishing full duplex connections, or (B) a second predefined signaling protocol for establishing full duplex connections. In a preferred embodiment, the predefined "on-off-on" signaling protocol is the Open Fiber Control (OFC) protocol and the second predefined signaling protocol is a standard "laser transmitter always on" protocol. In the preferred embodiment, the multi-protocol state machine disables operation of the laser transmitter whenever a loss of light condition is detected by the transceiver's laser light receiver that is not in compliance with the OFC protocol.

US Patent:

56047355, Feb 18, 1997

Filed:

May 12, 1995

Appl. No.:

8/440088

Inventors:

Frank H. Levinson - Palo Alto CA
Mark J. Farley - Napa CA
Minh Q. Vu - San Jose CA
Calvin P.-K. Leung - Newark CA

Assignee:

Finisar Corporation - CA

International Classification:

H04Q 1104

US Classification:

370360

Abstract:

The present invention provides an improvement in circuit switching for a network comprising a switching apparatus including a plurality of transceivers for interfacing directly with a like plurality of nodes. Each of the transceivers has a receive and transmit through port for passing data to and from nodes. Transmitted data includes a connect/disconnect sequence, a first wait sequence, and user data. The switching apparatus further includes circuitry for isolating each transceiver so as to loop back data when not in use and a switching matrix for directly connecting any pair of transceivers. Each of the transceivers includes circuitry for detecting a connect and disconnect sequence and an interface for connection to a serial asynchronous receiver to derive node requests, routing data, priority and other information from the connect sequence detected at the transceiver. Derived switch configuration requests are processed by a node route control state machine, with each node route control state machine integrated in a bus architecture for configuring the matrix switch. A bus arbitration state machine controls the bus architecture servicing bus requests and providing bus grants for the transfer of routing information to switch control logic and a command sequencer.