Alan C Burroughs, 62291 Mount Vernon Rd, Rock Bridge, TN 37022

6420692, Jul 16, 2002

Nov 12, 1999

09/440312

Alan C. Burroughs - San Jose CA
Brian P. Tremaine - San Jose CA

Terastor Corporation - San Jose CA

H01L 3100

2502141, 250214 R, 25055929

An optical position detector which has adjacent detector cells connected to each other in a zig-zag pattern offers a wider dynamic range than a detector with a vertical separation line during transition between a read laser power and a write laser power. This allows use of a fast response bi-cell in place of a slower position sensing device (PSD). The optical position detector has detector cells coupled to each other in a zig-zag pattern. Each detector cell produces a signal when a light beam is focused onto the cell to indicate a location of the light beam relative to the cell.

6449221, Sep 10, 2002

Feb 9, 2000

09/500695

Gordon R. Knight - Saratoga CA
John Al-Samarrie - Felton CA
David Blankenbeckler - Santa Clara CA
Brian Bonn - Scotts Valley CA
Alan Burroughs - San Jose CA
Warren Dalziel - Monte Sereno CA
Roger Hajjar - Santa Clara CA
Amit Jain - Sunnyvale CA
Guolin Ma - Milpitas CA
Brian Tremaine - San Jose CA

Terastor Corporation - Milpitas CA

G11B 1100

369 1335, 369 134, 369283, 369286, 428694 ML, 428 643

Magneto-optical storage media designed for optical storage systems such as disk drives with optical flying heads. Dielectric layers are designed and implemented to maximize optical coupling between the flying optical head and the media and to reduce variations of signals with flight height of the flying optical head.

6504805, Jan 7, 2003

Jul 22, 1999

09/360298

Alan Claude Burroughs - San Jose CA

Terastor Corporation - San Jose CA

G11B 700

369 5911, 369 4752, 369 1333

A wedge data writer writes wedge data, including track identification information, that are spatially-aligned along the radial direction of an optical disk. The wedge data are written at the beginning of a wedge when at least one radial groove or pit molded into the disk is detected.

6580675, Jun 17, 2003

Mar 9, 2000

09/523096

Alan C. Burroughs - San Jose CA

Terastor Corporation - San Jose CA

G11B 700

369116, 369 5337, 369 5326

A laser driver circuit for a light source in an optical recording system to maintain the read current at a substantially constant level. This circuit can reduce a recovery transient time for a transition from the write mode to the read mode.

6580846, Jun 17, 2003

Nov 17, 2000

09/715847

Alan C. Burroughs - San Jose CA
Leroy Volz - San Jose CA
Warren Dalziel - Monte Sereno CA
Roger A. Hajjar - San Jose CA
Frank Whitehead - Orangevale CA

Versatile Optical Networks, Inc. - San Jose CA

G02B 642

385 16, 385 17, 385 18, 385 24, 385 89, 356153

Controllable optical switches in response to feedback signals from optical position sensors that measure switch orientations. The optical position sensors may include local sensors that monitor and measure orientations of individual switches and global sensors that monitor and measure overall alignment of signal beams. Such switches may be used to form non-blocking switching arrays.

6657926, Dec 2, 2003

Jul 27, 2001

09/916788

Alan C. Burroughs - San Jose CA

Terastor Corporation - Milpitas CA

G11B 1114

369 1322, 369 4423, 36911224

A driver in a far-field magneto-optical (âMOâ) system has a read/write head that includes an objective lens for focusing a laser beam onto an MO disk. The objective lens is housed in an objective lens holder. A magnetic biasing coil is mounted to the bottom of the objective lens holder, between the objective lens and the MO disk. The coil includes an aperture to allow the laser beam to pass through the coil and onto a surface of the disk. The objective lens holder is moved up and down as the disk spins by an actuator to maintain the laser beam in focus on the MO disk surface. This maintains the objective lens and the coil precisely at predetermined distances from the MO disk surface, despite irregularities in the disk and disk wobble.

6724694, Apr 20, 2004

Jun 14, 2002

10/173495

Gordon R. Knight - Saratoga CA
John Al-Samarrie - Felton CA
David Blankenbeckler - Santa Clara CA
Brian Bonn - Scotts Valley CA
Alan Burroughs - San Jose CA
Warren Dalziel - Monte Sereno CA
Roger Hajjar - Santa Clara CA
Amit Jain - Sunnyvale CA
Guolin Ma - Milpitas CA
Brian P. Tremaine - San Jose CA

TeraStor Corporation - Milpitas CA

G11B 1100

369 1355, 369 1335, 369 4413, 369 4737, 3692752, 3692754, 36911224

Structures of storage media for optical storage systems, especially for systems in the near-field configuration to couple radiation between the optical head and the media at least in part by evanescent fields.

6925218, Aug 2, 2005

May 17, 2002

10/150531

Alan C. Burroughs - San Jose CA, US

Vitesse Semiconductor Corporation - Camarillo CA

G02B006/26

385 16, 385 17, 385 18, 385 19, 385 20, 385 24, 385 12, 385 13, 356153, 356154, 356155, 356156

Techniques and systems for controlling an optical switch array based on local and global optical monitoring and feedback controls. Each optical switch element includes a local optical monitoring mechanism to form a local feedback control to lock the switch element at a desired orientation. The global optical monitoring is used to adjust at least one switch element in the path of the signal beam to maintain an overall alignment.