Reed A Hancock

US Patent:

6764037, Jul 20, 2004

Filed:

Mar 25, 2002

Appl. No.:

10/107087

Inventors:

Reed Alan Hancock - Tucson AZ
James Alfred Jackmond - Tucson AZ
Joseph Chase Ramirez - Tucson AZ

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 23107

US Classification:

242348, 360132

Abstract:

A seven-sided housing for an information storage medium, where one of those seven sides is moveable in two planes to allow access to an information storage medium disposed therein. A portable data storage cartridge which includes an information storage medium disposed in Applicants housing. A method to read information from, and/or write information to, the information storage medium disposed within Applicants portable data storage cartridge. An information storage and retrieval system which includes one or more of Applicants portable data storage cartridges. A method to read information from, and/or write information to, an information storage medium disposed in Applicants data storage cartridge. An information storage and retrieval system which includes a computer useable medium having computer readable program code disposed therein for writing information to and/or retrieving information from, an information storage medium disposed within Applicants portable data storage cartridge.

US Patent:

D493470, Jul 27, 2004

Filed:

Jan 6, 2003

Appl. No.:

29/173763

Inventors:

Perry E. Abbott - Tucson AZ
Armando J. Argumedo - Tucson AZ
John R. Blair - Tucson AZ
Reed A. Hancock - Tucson AZ
James A. Jackmond - Tucson AZ
Kevin Kartchner - Tucson AZ
Joseph C. Ramirez - Tucson AZ
Raymond Yardy - Tucson AZ

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

1402

US Classification:

D14478

US Patent:

7311282, Dec 25, 2007

Filed:

Jul 20, 2004

Appl. No.:

10/895176

Inventors:

Reed A. Hancock - Tucson AZ, US
Joseph C. Ramirez - Tucson AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 23/107

US Classification:

242348, 360132

Abstract:

A seven-sided housing for an information storage medium, where one of the seven sides is moveable in two planes to allow access to an information storage medium disposed therein. A portable data storage cartridge, which includes an information storage medium disposed in the housing. A method to read information from, and/or write information to, the information storage medium is disposed within the portable data storage cartridge. An information storage and retrieval system, which includes one or more of the portable data storage cartridges. A method to read information from, and/or write information to, an information storage medium disposed in the data storage cartridge. An information storage and retrieval system, which includes a computer useable medium having computer readable program code disposed therein for writing information to and/or retrieving information from, an information storage medium disposed within the portable data storage cartridge.

US Patent:

7529061, May 5, 2009

Filed:

Feb 1, 2008

Appl. No.:

12/024129

Inventors:

Nhan Xuan Bui - Tucson AZ, US
Reed Alan Hancock - Tucson AZ, US
Eiji Ogura - Yokohama, JP
Kazuhiro Tsuruta - Sagamihara, JP

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 5/584

US Classification:

360 7712

Abstract:

A tape drive and a method of using a tape drive is provided. The tape drive includes a head assembly including at least a first and a second servo read element configured to detect transition stripes of a servo pattern on tape media. The first servo read element is configured to detect at least two transition stripes of an even servo band on the tape media at a first time. The servo detection logic is configured to detect a timing of at least two transition stripes of the even servo band on the tape media. The servo controller is configured to position the head assembly laterally with respect to the tape media in response to the timing of the at least two transition stripes of the even servo band on the tape media. The second servo read element is configured to detect at least two transition stripes of an odd servo band on the tape media at a second time, wherein the second time is a time delay after the first time corresponding to a distance D. The servo detection logic is further configured to detect a timing of at least two transition stripes of the odd servo band on the tape media.

US Patent:

7649710, Jan 19, 2010

Filed:

Feb 8, 2008

Appl. No.:

12/028676

Inventors:

Nhan Xuan Bui - Tucson AZ, US
Reed Alan Hancock - Tucson AZ, US
David Howard Flores Harper - Vail AZ, US
Wayne Isami Imaino - San Jose CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 5/584

US Classification:

360 7712

Abstract:

In one embodiment, a tape read/write head supported by a lever is biased in a first position, using magnetic attraction between a magnet supported by the lever, and a return path structure of magnetically permeable material. In the illustrated embodiment, the magnet centers itself, in the absence of a coil generated magnetic field, in the middle of a gap of the magnetic return path structure. In one aspect, the mass of the read/write head and one side of the lever may be balanced by the mass of the magnet and the other side of the lever. The lever and hence the tape read/write head carried by the lever, may be pivoted by conducting current through a coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. As a consequence, the lever pivots on a pivot axis as a function of the magnitude and direction of the current through the coil. The face of the magnet may be divided into portions of opposite magnetic polarity to facilitate a relatively pure torque to be developed substantially without a net force.

US Patent:

7658344, Feb 9, 2010

Filed:

Dec 20, 2007

Appl. No.:

11/961755

Inventors:

Reed A. Hancock - Tucson AZ, US
James A. Jackmond - Tucson AZ, US
Joseph C. Ramirez - Tucson AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 23/107

US Classification:

242348, 360132

Abstract:

A method to write information to, or retrieve information from, an information storage medium disposed within a portable data storage cartridge moveably disposed in a data storage and retrieval system, wherein the data storage and retrieval system further comprises a data storage device. The portable data storage cartridge comprises a moveable curved door slidingly disposed within the enclosure, and a tape reel rotatably disposed within the enclosure, wherein the moveable curved door and the tape reel are non-concentric. The method retrieves the portable data storage cartridge from a storage slot, transports that portable data storage cartridge to a data storage device, disposes the portable data storage cartridge in the data storage device. The method further moves the moveable curved door from said a position to a second position, and reads information from and/or writes information to, the information storage medium.

US Patent:

7675255, Mar 9, 2010

Filed:

Jan 31, 2007

Appl. No.:

11/669615

Inventors:

Allen K. Bates - Tucson AZ, US
Nhan Xuan Bui - Tucson AZ, US
Reed A. Hancock - Tucson AZ, US
Louis P. Russo - Tucson AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H02P 3/00

US Classification:

318375, 318376, 318368, 318273

Abstract:

A storage drive implements a method for a BEMF voltage reduction during a deceleration period of an electric motor of the storage drive. In operation, the electric motor is disconnected from a power supply during an entirety of the deceleration period of the electric motor to prevent any flow of a BEMF current into the power supply, and the electric motor is connected to a power return during a segment or an entirety of the deceleration period of the electric motor to dissipate any BEMF voltage within the electric motor.

US Patent:

7724466, May 25, 2010

Filed:

Feb 25, 2008

Appl. No.:

12/036905

Inventors:

Nhan X. Bui - Tucson AZ, US
Edwin R. Childers - Tucson AZ, US
Reed A. Hancock - Tucson AZ, US
David H. Flores Harper - Vail AZ, US
Kazuhiro Tsuruta - Sagamihara, JP

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 5/584

US Classification:

360 7712, 360 75

Abstract:

A method and system for servo stripe width detection and compensation including moving a magnetic tape in a first direction across a magnetic tape head, the magnetic tape having a servo band including a first servo pattern and a second servo pattern, the magnetic tape head having a servo element; detecting a leading edge and a trailing edge of the first servo pattern with the servo element; detecting a leading edge and a trailing edge of the second servo pattern with the servo element; determining a first time from the leading edge of the first servo pattern to the leading edge of the second servo pattern; determining a second time from the trailing edge of the first servo pattern to the trailing edge of the second servo pattern; and determining a correction value from a difference between the first time and the second time.