David D Harper

US Patent:

8270108, Sep 18, 2012

Filed:

Aug 28, 2009

Appl. No.:

12/549531

Inventors:

David H. Harper - Vail AZ, US
Robert A. Hutchins - Tucson AZ, US
Peter V. Koeppe - San Diego CA, US
Johnny L. Teale - Tucson AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 5/584
G11B 15/48
G11B 5/55

US Classification:

360 7712, 360 741, 360 7802

Abstract:

A method, system and computer-usable medium are disclosed for performing data write and data read operations on a tape storage medium. A dual head/tape actuator assembly, comprising two head/tape actuator assemblies, is implemented to perform data write and data read operations on a tape medium. Each of the head/tape actuator assemblies comprises a set of data writer elements and a set of data reader elements. During data write operations, the data writer elements on one head/tape actuator assembly are used to write data to a tape medium and the data reader elements on the other head/tape actuator assembly are used to read the data from the tape medium. During read operations, half of the data readers on one head/tape actuator assembly are used to read data from half of the written data tracks on the tape medium and half of the data readers on the other head/tape actuator assembly are used to read the other half of the written tracks.

US Patent:

8638523, Jan 28, 2014

Filed:

Jul 2, 2012

Appl. No.:

13/540428

Inventors:

David H. Harper - Vail AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 5/584
G11B 20/20
G11B 5/09

US Classification:

360 7712, 360 76, 360 53

Abstract:

A system provides tape having at least one longitudinal data track and a tape head operative to move along a single axis line lateral to the data track. The storage tape moves across the tape head. The tape head moves along the axis line such that a write element of the tape head intersects the data track and writes data to a section of the data track. A controller determines that the storage tape is skewed. In response to determining that the storage tape is skewed, the controller determines a position along the axis line and a time to move the tape head such that the read elements intersects the section of the data track. At the determined time, the tape head pauses writing of data and moves to the position along the axis line. The tape head reads the section of the data track to verify the written data.

US Patent:

20130087850, Apr 11, 2013

Filed:

Oct 11, 2011

Appl. No.:

13/270780

Inventors:

Scott J. Alberhasky - Portland OR, US
David Harper - Battle Ground WA, US

Assignee:

Maxim Integrated Products, Inc. - Sunnyvale CA

International Classification:

H01L 27/088
H01L 21/336

US Classification:

257329, 438268, 257E2706, 257E2141

Abstract:

Semiconductor devices that include a trench with conductive material for connecting a VDMOS device to a LDMOS device are described. The semiconductor devices include a substrate having a first region and a second region, wherein the second region is disposed on the first region. A trench extends from a top surface of the second region to the first region. The semiconductor substrate includes a VDMOS device formed proximate to the top surface of the second region and a LDMOS device that is also formed proximate to the top surface of the second region. The drain region of the VDMOS device is electrically connected to the source region of the LDMOS device by way of a conductive material disposed in the trench.

US Patent:

60147474, Jan 11, 2000

Filed:

Sep 30, 1997

Appl. No.:

8/941520

Inventors:

Aleph Fackenthall - Portland OR
David Harper - Lacey WA
Joseph Bursey - Hillsboro OR
Brad Bickford - Beaverton OR
Brian G. Stern - Hillsboro OR

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G06F 1300
G06F 300
G06F 116
G08B 1314

US Classification:

713200

Abstract:

A tamper detect device is provided to a chassis of a system. The tamper detect device provides a signal when the chassis is opened while at least a part of the system is under power. In one embodiment, the signal is used to produce an immediate warning. In another embodiment, the tamper detect device is incorporated into the system and the warning is audio. In another embodiment, the warning is continually provided until the chassis cover is closed, the system is unplugged, or the tamper detect device is bypassed. In another embodiment, the system is a computer system.

US Patent:

20210074323, Mar 11, 2021

Filed:

Sep 11, 2019

Appl. No.:

16/567942

Inventors:

- Armonk NY, US
David Harper - Vail AZ, US

International Classification:

G11B 5/48
G11B 5/008
G11B 5/584

Abstract:

A first semi-flexible structure and a second semi-flexible structure may be generated. The first semi-flexible structure may be bonded to a first end of a write/read tape head. The second semi-flexible structure may be bonded to a second end of the write/read tape head. A voice coil motor may be activated.

US Patent:

20210074330, Mar 11, 2021

Filed:

Sep 11, 2019

Appl. No.:

16/567905

Inventors:

- Armonk NY, US
David Harper - Vail AZ, US

International Classification:

G11B 33/12
H01L 41/09
G11B 21/02

Abstract:

Implementation of a non-interfering micro-positioning device, for a tape drive write/read head module assembly utilizing piezoelectric elements, by generating at least two flexure brackets. The at least two flexure brackets may include the piezoelectric elements. Affixing at least one flexure bracket to a first side of the write/read head module assembly. Affixing at least one other flexure bracket to a second side of the write/read head module assembly.

US Patent:

20200035269, Jan 30, 2020

Filed:

Oct 3, 2019

Appl. No.:

16/591684

Inventors:

- Armonk NY, US
Kevin B. Judd - Vail AZ, US
Randy C. Inch - Tuscon AZ, US
Mark A. Lantz - Thalwil, CH
David H.F. Harper - Vail AZ, US

International Classification:

G11B 15/60
G11B 5/008
G11B 33/14

Abstract:

A determination is made whether read/write is enabled within the tape drive storage unit. In response to determining that read/write is enabled, a determination is made whether a temperature within the tape drive storage unit exceeds a threshold value. In response to determining that the temperature within the tape drive storage unit exceeds the threshold value, a determination is made of a direction of travel of a tape media within the tape drive storage unit. In response to determining that the direction of travel is a forward direction, a first cooling device is powered on. The first cooling device lowers the temperature of a first guide roller and the tape media coming off a first tape storage reel prior to the tape media passing by a read/write head within the tape drive storage unit.

US Patent:

20190304500, Oct 3, 2019

Filed:

Jun 17, 2019

Appl. No.:

16/442833

Inventors:

- Armonk NY, US
Kevin B. Judd - Vail AZ, US
Randy C. Inch - Tuscon AZ, US
Mark A. Lantz - Thalwil, CH
David H.F. Harper - Vail AZ, US

International Classification:

G11B 15/60
G11B 5/008

Abstract:

A determination is made whether read/write is enabled within the tape drive storage unit. In response to determining that read/write is enabled, a determination is made whether a temperature within the tape drive storage unit exceeds a threshold value. In response to determining that the temperature within the tape drive storage unit exceeds the threshold value, a determination is made of a direction of travel of a tape media within the tape drive storage unit. In response to determining that the direction of travel is a forward direction, a first cooling device is powered on. The first cooling device lowers the temperature of a first guide roller and the tape media coming off a first tape storage reel prior to the tape media passing by a read/write head within the tape drive storage unit.

Address:

910 N Circulo Zagala, Tucson, AZ 85745

Phone:

(602)7211998

VIN:

3GNDA23D97S633762

Make:

CHEVROLET

Model:

HHR

Year:

2007