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Keith W Malang

from Niwot, CO
Age ~67

Keith Malang Phones & Addresses

  • 8920 Little Raven Trl, Niwot, CO 80544 (303) 652-3410 (303) 652-3700
  • 6732 Golf Club Dr, Longmont, CO 80503 (303) 786-8609
  • Erie, CO
  • Colorado Springs, CO
  • Denver, CO
  • 8920 Little Raven Trl, Niwot, CO 80503 (303) 652-3700

Work

Position: Self employed

Education

Degree: Graduate or professional degree

Resumes

Resumes

Keith Malang Photo 1

Principal Engineer At Inphase Technologies

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Location:
8920 Little Raven Trl, Niwot, CO 80503
Industry:
Computer Hardware
Work:
InPhase Technologies
Principal Engineer

InPhase Tech since 2001
Principal Design Engineer

Maxtor 1994 - 2001
Principal Design Engineer

Conner Peripherals 1992 - 1994
Senior Stafff Servo Engineer

digital equipment corporation 1980 - 1988
Senior Design Engineer
Education:
University of California, Los Angeles 1976 - 1980
Keith Malang Photo 2

Keith Malang

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Publications

Us Patents

Method And Apparatus For Increasing Track Density By Adapting Write Fault Gate To Position Error Signal As It Varies From Id To Od

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US Patent:
6940679, Sep 6, 2005
Filed:
Nov 7, 2001
Appl. No.:
10/008263
Inventors:
Michael McNeil - Nederland CO, US
Thomas Melrose - Longmont CO, US
Keith Malang - Longmont CO, US
Assignee:
Maxtor Corporation - Longmont CO
International Classification:
G11B005/596
US Classification:
360 7704, 360 60, 360 61
Abstract:
A disk drive utilizes a track dependent variable write fault gate for each of the transducers within the drive. By deriving a 3 sigma distribution across the repeatable run out (RRO) and the non-repeatable run out (NRRO), a position error signal (PES) is derived which varies in magnitude across the stroke of the transducers and which has a slope used to derive variable write fault gate thresholds for the tracks associated with each transducer. As the stroke of the transducer moves from the outer diameter (OD) to the inner diameter (ID), the magnitude of the write fault gate thresholds may be decreased relative to the PES, and track density and capacity may increase where PES and write fault gate thresholds are low. The invention thus maintains a constant hard error recovery margin across the stroke.

Method And Apparatus For Calibrating Piezoelectric Driver In Dual Actuator Disk Drive

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US Patent:
6975123, Dec 13, 2005
Filed:
Dec 20, 2001
Appl. No.:
10/028068
Inventors:
Keith Malang - Longmont CO, US
Larry Hutsell - Loveland CO, US
Assignee:
Maxtor Corporation - Longmont CO
International Classification:
G11B021/24
G01R033/12
US Classification:
324658, 324727, 360292, 702 85
Abstract:
A method and apparatus are disclosed which are operable to determine a capacitance associated with at least one piezoelectric element in an dual actuator disk drive. The capacitance information is used to adjust a driver used to drive the piezoelectric element. Capacitance is determined by supplying a predetermined current into the piezoelectric element(s) for a predetermined time period. A voltage associated with the piezoelectric element(s) is measured following the predetermined time period. The capacitance of the piezoelectric element(s) is then calculated based on the measured voltage, the current supplied, and the predetermined time period.

Micro-Positioning Movement Of Holographic Data Storage System Components

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US Patent:
7116626, Oct 3, 2006
Filed:
Nov 27, 2002
Appl. No.:
10/305769
Inventors:
Daniel D. Woods - Longmont CO, US
Keith W. Malang - Longmont CO, US
Assignee:
InPhase Technologies, Inc. - Longmont CO
International Classification:
G11B 7/00
US Classification:
369103
Abstract:
According to one aspect, a holographic storage system including micro-actuators is presented. In one example of one aspect of the invention, the device includes a spatial light modulator, a detector, a storage medium, and at least one micro-actuator configured to move at least one of the spatial light modulator, the detector, and the storage medium. The micro-actuators may include a servomechanism or the like to control the positioning of a component based on feedback associated with a misalignment of a detected image. According to another aspect of the invention, various methods for determining component misalignments of a holographic storage system are presented.

Medium Position Sensing

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US Patent:
7184383, Feb 27, 2007
Filed:
Jan 24, 2003
Appl. No.:
10/351464
Inventors:
Mark R. Ayres - Boulder CO, US
Michael J. Lipney - Boulder CO, US
Keith W. Malang - Longmont CO, US
Curt J. Goodknight - Boulder CO, US
Assignee:
Inphase Technologies, Inc. - Longmont CO
International Classification:
G11B 7/00
US Classification:
36910901, 369 5329, 369103, 3692754
Abstract:
A method of determining coordinates for a storage medium includes: determining diffraction data from a plurality of diffraction patterns corresponding to diffractive markers of the medium; and combining the diffraction data to determine composite coordinates for the medium. The composite coordinates may include three translational coordinates and three rotational coordinates. The act of determining diffraction data may include shining a plurality of beams on a selection of the diffractive markers, and measuring the corresponding diffraction patterns in one or more photodetectors to determine the diffraction data. In this latter case the photodetectors may be segmented. The act of combining the diffraction data to determine composite coordinates may include solving a matrix system that couples the diffraction data and the composite coordinates. Each diffractive marker may include a pit. The storage medium may include a holographic storage medium.

Holographic Memory Medium, Holographic Memory Device And Holographic Recording Device

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US Patent:
7483189, Jan 27, 2009
Filed:
Mar 20, 2006
Appl. No.:
11/378395
Inventors:
Yoshiyuki Matsumura - Gifu, JP
Ian Russell Redmond - Boulder CO, US
Keith Malang - Longmont CO, US
Assignee:
Sanyo Electric Co., Ltd. - Osaka
Inphase Technologies - Longmont CO
International Classification:
G03H 1/10
G03H 1/02
US Classification:
359 10, 359 28, 359 3
Abstract:
Even when a tilt error is caused in a holographic memory in a direction perpendicular to a surface including optical axes of a signal beam and a reference beam, the signal beam and the reference beam are allowed to enter the holographic memory at adequate angles relative thereto at all times by suppression of the tilt error. During recording and reproducing operations, the reference incident angle of the reference beam in the radial tilt direction is detected based on a received light state. A tilt actuator for displacing the holographic memory medium in the radial tilt direction is driven to adjust an incident angle of the reference beam in the radial tilt direction to the reference angle Sr. Then, the signal beam and the reference beam are emitted to the holographic memory medium to execute the recording and reproducing operations.

Sensing Absolute Position Of An Encoded Object

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US Patent:
7638755, Dec 29, 2009
Filed:
May 1, 2008
Appl. No.:
12/113516
Inventors:
Mark R. Ayres - Boulder CO, US
Larry Fabiny - Boulder CO, US
Keith W. Malang - Longmont CO, US
Curtis Alan Shuman - Boulder CO, US
Assignee:
Inphase Technologies, Inc. - Longmont CO
International Classification:
G01D 5/34
US Classification:
25023113, 356614, 359436, 341 13
Abstract:
In one aspect of the present invention, a device for sensing an absolute position of an encoded object, comprising: a position tracking module comprising: a track illumination module configured to illuminate the encoded object with one more light beams, and to detect one or more light beams resulting from said illumination of said encoded object; and an absolute position determinator configured to determine the absolute position of the encoded object based on said one or more light beams resulting from said illumination of said encoded object.

Magnetic Field Position Feedback For Holographic Storage Scanner

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US Patent:
7738153, Jun 15, 2010
Filed:
Sep 7, 2007
Appl. No.:
11/851413
Inventors:
Rodney C. Harris - Fort Collins CO, US
Keith W. Malang - Longmont CO, US
Assignee:
Inphase Technologies, Inc. - Longmont CO
International Classification:
G02B 26/08
US Classification:
3592121
Abstract:
The present invention provides a scanner comprising: a base member; a scanning beam reflective member having a first tilt axis and a second tilt axis orthogonal to the first tilt axis; a mounting assembly for mounting the scanning beam reflective member on the base member for tilting of thereof along the first and second tilt axes; an actuator for tilting the scanning beam reflective member along the first and second tilt axes to provide a tilt orientation; a magnet assembly which generates one or more magnetic fields which are responsive and correlated to the tilt orientation; and a magnetic field sensor assembly for sensing the magnetic fields generated by the magnet assembly to thereby indicate the tilt orientation. The mounting assembly may comprise a suspension assembly having a tilt imparting assembly for imparting tilt to the reflective member, and a reflective member holder assembly for holding the reflective member.

Data Storage Cartridge Loading And Unloading Mechanism, Drive Door Mechanism And Data Drive

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US Patent:
7739701, Jun 15, 2010
Filed:
Nov 22, 2005
Appl. No.:
11/283864
Inventors:
Gregory Peter Hertrich - Longmont CO, US
David Schoenfeld - Thornton CO, US
Keith Malang - Longmont CO, US
Assignee:
Inphase Technologies, Inc. - Longmont CO
International Classification:
G11B 17/03
US Classification:
720635
Abstract:
The present invention provides loading and unloading mechanisms for data storage cartridges, drive door mechanisms for data drives, and data drives comprising such loading and unloading and/or drive door mechanisms. Embodiments of the cartridge loading and unloading mechanisms, drive door mechanisms and/or data drives, of the present invention can operate in a manner such that the drive door of the data drive is fully closed before the disk medium is exposed, e. g. , before opening of the associated shutter of the cartridge. An embodiment of the cartridge loading and unloading mechanism of the present invention can be powered by the same drive motor assembly that is used to move or transport the cartridge to the optical head assembly used for writing and/or reading of data from the disk medium of the cartridge. Embodiments of the cartridge loading and unloading mechanisms and drive door mechanisms of the present invention can fit within a standard configuration for a data drive. Embodiments of the cartridge loading and unloading mechanisms, drive door mechanisms and/or data drives of the present invention can provide for reliable operation, ease of assembly, as well as simplification of the parts and components necessary for the reliable operation of the loading and unloading mechanism, drive door mechanism and/or data drive.
Keith W Malang from Niwot, CO, age ~67 Get Report