Ray Z Chen

US Patent:

6483967, Nov 19, 2002

Filed:

Jun 27, 2001

Appl. No.:

09/893197

Inventors:

Suning Tang - Fremont CA
Ray T. Chen - Austin TX

Assignee:

Finisar Corporation - Sunnyvale CA

International Classification:

G02B 626

US Classification:

385 43, 385 14, 385 31, 385131, 385132

Abstract:

The present invention is a three-dimensional tapered waveguide coupler capable of interconnecting electro-optical devices with differing optical mode profiles. The ends of the waveguide are configured to match the optical mode profiles of the electro-optical devices that the waveguide interconnects. The waveguide adiabatically transmits the fundamental mode of the photo-optic signal from the electro-optical device at the waveguides input end to a different electro-optical device at the waveguides output end. A single coupler can be configured with one or more waveguides, each waveguide having different optical mode profiles at either end and different optical transmission characteristics.

US Patent:

6640233, Oct 28, 2003

Filed:

Aug 18, 2000

Appl. No.:

09/642063

Inventors:

Blake Lewis - Palo Alto CA
Kayuri Patel - Cupertino CA
Ray Chen - Campbell CA

Assignee:

Network Appliance, Inc. - Sunnyvale CA

International Classification:

G06F 1200

US Classification:

707205, 707200, 707 1, 711100

Abstract:

A system that manages a file system for a file server. A file operation is received that signals a reservation operation for a file having a file size. Preferably, the file system uses a write anywhere file system layout, the file operation that signals the reservation operation is a zero length write request, and the file operation that signals the reservation operation includes a parameter that specifies the file size. A number of blocks needed to be reserved to accommodate the file is computed. Preferably, computing the number of blocks needed to be reserved to accommodate the file includes determining a total number of direct and indirect blocks needed to accommodate the file size, and subtracting a total number of blocks already allocated for the file and a total number of cached unallocated blocks for the file from the total number of direct and indirect blocks needed to accommodate the file size. A number of unallocated blocks is reserved in the file system, with the number of reserved blocks equal to the number of blocks needed to be reserved to accommodate the file. Reserving the number of blocks preferably includes setting a flag in an inode for the file that indicates blocks have been reserved for the file, and incrementing a reserved block count in a file system information block by the number of blocks needed.

US Patent:

6711812, Mar 30, 2004

Filed:

Apr 6, 2000

Appl. No.:

09/544263

Inventors:

Jane Lu - Taipei, TW
Paul Wu - Saratoga CA
Ray Chen - Fremont CA
Scott Chen - Tao-Yuan, TW
Jeff Chang - Taoyuan, TW

Assignee:

Unicap Electronics Industrial Corporation - Taipei

International Classification:

H01K 310

US Classification:

29852, 29830, 29846, 427 97, 427 99, 428901, 216 18, 174262, 361748795

Abstract:

A method of making a thermally enhanced BGA substrate in which a metal (copper) core, has dielectric layers applied to each side thereof and conductive through-core build-up vias are provided. Rigidifying non-conductive dielectric sheets are laminated to the oppositely facing surfaces and then conductive layers are applied to at least one of the rigidifying non-conductive sheets and via connections are made through the dielectric layer(s) to the core conductive layer.

US Patent:

6751635, Jun 15, 2004

Filed:

Aug 18, 2000

Appl. No.:

09/642066

Inventors:

Ray Chen - Campbell CA
John K. Edwards - Sunnyvale CA
Kayuri Patel - Cupertino CA

Assignee:

Network Appliance, Inc. - Sunnyvale CA

International Classification:

G06F 1730

US Classification:

707200, 707 10, 707202, 707206

Abstract:

A method and system for reliably performing extra-long operations in a reliable state-full system (such as a file system). The file system includes a separate portion of the file system reserved for files having extra-long operations in progress, including file deletion and file truncation. This separate portion of the file system is called the zombie file space; it includes a separate name space from the regular (âliveâ) file system that is accessible to users, and is maintained as part of the file system when recording a consistency point.

US Patent:

6894385, May 17, 2005

Filed:

Nov 18, 2003

Appl. No.:

10/717342

Inventors:

Behdad Jafari - Saratoga CA, US
Ray Chen - Fremont CA, US

Assignee:

nVidia Corporation - Santa Clara CA

International Classification:

H01L023/34

US Classification:

257724, 257778, 257777

Abstract:

An integrated circuit package is disclosed. The integrated circuit package includes a package substrate having a top and a bottom. Further, the integrated circuit package includes a plurality of bypass capacitors coupled to the bottom of the package substrate without a cavity. Moreover, the integrated circuit package includes an array of solder balls formed on the bottom of the package substrate. The array of solder balls facilitates surface mounting to a printed circuit board assembly. Also, the solder balls provide sufficient space between the printed circuit board assembly and the bypass capacitors. In an embodiment, the package substrate is an organic substrate.

US Patent:

7105799, Sep 12, 2006

Filed:

Aug 11, 2004

Appl. No.:

10/917272

Inventors:

Ray Chen - Stanford CA, US
David A. B. Miller - Stanford CA, US

Assignee:

The Board of Trustees of the Leland Stanford Junior Universtiy - Palo Alto CA

International Classification:

H01L 31/00
G01B 9/02

US Classification:

2502141, 250226, 250550, 356451

Abstract:

An electronically tuned, wavelength-dependent optical detector is provided. The electronically tuned, wavelength-dependent optical detector is a modified metal-semiconductor-metal photodetector including a comb-like metal electrode at a common voltage and metal electrodes each supplied with a control voltage by a voltage means. The wavelength to be detected in an optical input illuminating the detector is selected based on the set of control voltages applied to the metal electrodes. In another embodiment of the invention, the wavelength to be detected with the electronically tuned, wavelength-dependent optical detector is also selected using a standing wave generator, such as an interferometer, to produce a spatially varying light intensity on the surface of the electronically tuned, wavelength-dependent optical detector. Electronic wavelength demultiplexing is also provided. Design flexibility can be obtained by providing two or more optical patterns at a detector surface, each pattern having a different wavelength dependence.

US Patent:

7418465, Aug 26, 2008

Filed:

Oct 24, 2003

Appl. No.:

10/693326

Inventors:

Blake Lewis - Los Altos Hills CA, US
Kayuri Patel - Cupertino CA, US
Ray Chen - Campbell CA, US

Assignee:

Network Appliance, Inc. - Sunnyvale CA

International Classification:

G06F 17/30
G06F 12/00
G06F 15/16

US Classification:

707205, 707 10, 711114, 709203

Abstract:

A system that manages a file system for a file server. A file operation is received that signals a reservation operation for a file having a file size. Preferably, the file system uses a write anywhere file system layout, the file operation that signals the reservation operation is a zero length write request, and the file operation that signals the reservation operation includes a parameter that specifies the file size. A number of blocks needed to be reserved to accommodate the file is computed. Preferably, computing the number of blocks needed to be reserved to accommodate the file includes determining a total number of direct and indirect blocks needed to accommodate the file size, and subtracting a total number of blocks already allocated for the file and a total number of cached unallocated blocks for the file from the total number of direct and indirect blocks needed to accommodate the file size. A number of unallocated blocks is reserved in the file system, with the number of reserved blocks equal to the number of blocks needed to be reserved to accommodate the file. Reserving the number of blocks preferably includes setting a flag in an inode for the file that indicates blocks have been reserved for the file, and incrementing a reserved block count in a file system information block by the number of blocks needed.

US Patent:

7451165, Nov 11, 2008

Filed:

Jun 15, 2004

Appl. No.:

10/868189

Inventors:

Ray Chen - Campbell CA, US
John Edwards - Sunnyvale CA, US
Kayuri Patel - Cupertino CA, US

Assignee:

Network Appliance, Inc. - Sunnyvale CA

International Classification:

G06F 12/00
G06F 17/30

US Classification:

707200, 707205

Abstract:

A method and system for reliably performing extra-long operations in a reliable state-full system (such as a file system). The file system includes a separate portion of the file system reserved for files having extra-long operations in progress, including file deletion and file truncation. This separate portion of the file system is called the zombie file space; it includes a separate name space from the regular (“live”) file system that is accessible to users, and is maintained as part of the file system when recording a consistency point.