David C Daniel

US Patent:

6355532, Mar 12, 2002

Filed:

Oct 6, 1999

Appl. No.:

09/413667

Inventors:

John J. Seliskar - Northglenn CO
Verne Hornback - Troutdale OR
David Daniel - Vancouver WA

Assignee:

LSI Logic Corporation - Milpitas CA

International Classification:

H01L 21336

US Classification:

438283, 438213, 438589, 438157

Abstract:

A short vertical channel, dual-gate, CMOS FET is fabricated by forming a plurality of channel segments in a starting material that extend longitudinally between source and drain areas. The channel segments are laterally separated from one another by spaces and are preferably formed from pillars of starting material located between the spaces. The pillars are laterally oxidized and the oxidation is removed to reduce the width of the pillars and form the channel segments. A gate structure is formed in the spaces between the channel segments. The width of each pillar is defined by conventional, contemporaneous photolithographic exposure and etching, but the width of each channel segment is substantially less than the width of the etch resistant barrier created photolithographically. The relatively narrow channel widths allow fully-depleted and fully-inverted conductivity characteristics which enhance the conductivity characteristics of the FET despite its reduced size, without silicon on insulator (SOI) constructions or epitaxial substrates.

US Patent:

6366422, Apr 2, 2002

Filed:

Apr 1, 1999

Appl. No.:

09/283170

Inventors:

David B. Daniel - Longmont CO
Fred Eifert - Eaton CO
Douglas Christian Hansen - Boulder CO
David Lawson - Arvada CO
Thai Nguyen - Thornton CO

Assignee:

Storage Technology Corporation - Louisville CO

International Classification:

G11B 500

US Classification:

360 76

Abstract:

It is difficult to read data from curved helical data tracks in a helical scan tape drive. Curved helical tracks can be caused by improper tape tension, tape damage, tape path misalignment, tape head offset between different head systems, and debris. The present invention solves the problem of recovering data from curved helical tracks by providing a table of different curve offset signals. Each curve offset signal represents a curve track profile of a typical curved track. The position of the helical read head reading a curved data track is controlled as a function of one of the curve offset signals such that the read head is positioned properly with respect to the helical data track to provide a proper read back signal. The curve offset signals are selected one at a time to control the position of the helical read head until the helical read head provides a proper read back signal.

US Patent:

6565029, May 20, 2003

Filed:

Jun 20, 2001

Appl. No.:

09/885660

Inventors:

James Zweighaft - Boulder CO
David B. Daniel - Longmont CO

Assignee:

Quantum Corp. - Milpitas CA

International Classification:

G11B 1546

US Classification:

2423344, 2425342, 2425632, 360 71

Abstract:

A method for detecting slippage in a tape path, and re-calibrating a sensing assembly in a tape storage device to account for the slippage. The method includes sensing a position of one of a supply reel and a take-up reel. In response to sensing the position of the supply reel or take-up reel, sensing a position of a guide roller. The position of the guide roller corresponds to the position of the guide roller when the position of the supply reel or the take-up reel is sensed. In response to sensing the position of the guide roller, the tape media is wound through the tape path between the supply reel and the take-up reel. In response to winding the tape media through the tape path, a second position of the one of the supply reel and the take-up reel is sensed. In response to sensing the second position of the one of the supply reel and the take-up reel, a second position of the guide roller is sensed. The second position of the guide roller corresponds to the position of the guide roller when the second position of the one of the supply reel or the take-up reel is sensed.

US Patent:

20170374149, Dec 28, 2017

Filed:

Jun 28, 2016

Appl. No.:

15/195443

Inventors:

- Atlanta GA, US
Charles Baiamonte - Little Elm TX, US
David Barr - Grand Prairie TX, US
David Daniel - Wylie TX, US
John Kile - Dallas TX, US
Ronald Stephens - The Colony TX, US
Robert Stoker - The Colony NJ, US

International Classification:

H04L 29/08

Abstract:

A storage area network architecture and a method for storing data in the storage area network architecture are disclosed. For example, the storage area network architecture comprises a first layer of servers, the first layer of servers comprising a plurality of file receiving servers, a second layer of servers, the second layer of servers comprising a plurality of file sharing servers in communication with the first layer of servers and a third layer of servers, the third layer of servers comprising a plurality of storage servers in communication with the second layer of servers.