Search

Barmeshwar Vikramaditya Phones & Addresses

  • Bellevue, WA
  • 9012 Belvedere Dr, Eden Prairie, MN 55347
  • Edina, MN
  • 1901 Minnehaha Ave, Minneapolis, MN 55404
  • 1039 Racine Ave, Chicago, IL 60607
  • Stanford, CA

Public records

Vehicle Records

Barmeshwar Vikramaditya

View page
Address:
9012 Belvedere Dr, Eden Prairie, MN 55347
VIN:
JM3ER293470115965
Make:
MAZDA
Model:
CX-7
Year:
2007

Resumes

Resumes

Barmeshwar Vikramaditya Photo 1

Head Of System Engineering, Power Solutions

View page
Location:
9012 Belvedere Dr, Eden Prairie, MN 55347
Industry:
Computer Hardware
Work:
Amazon Web Services
Head of System Engineering, Power Solutions

Seagate Technology Oct 2012 - Feb 2018
Managing Principal Engineer

Seagate Technology Oct 2012 - Feb 2018
Mananging Technologist

Seagate Technology Oct 2009 - Oct 2012
Senior Engineering Manager

Seagate Technology Jan 2007 - Oct 2009
Senior Staff Engineer
Education:
University of Minnesota 1998 - 2001
Doctorates, Doctor of Philosophy, Mechanical Engineering
University of Illinois at Chicago 1995 - 1998
Master of Science, Masters, Mechanical Engineering
Delhi College of Engineering 1991 - 1995
Bachelor of Engineering, Bachelors, Mechanical Engineering
Skills:
Embedded Systems
Failure Analysis
System Architecture
Simulations
Matlab
Hard Drives
Firmware
Robotics
Digital Signal Processing
R&D
Semiconductors
Real Time Control Systems
Engineering
Motion Control
Magnetics
Servo Control Systems
Structural Modeling
Servo Demodulators
C++
Optimization
Digital Signal Processors
Industrial Motion Control
System Optimization
Machine Design
Nonlinear
Systems Engineering
Research and Development
Micromanipulation
Computer Vision
Nonlinear Control
Hardware Architecture
Engineering Management
Languages:
English
Hindi
Certifications:
Design For Six Sigma - Hardware
Six Sigma - Hardware
Seagate Technology
Barmeshwar Vikramaditya Photo 2

Barmeshwar Vikramaditya

View page

Publications

Us Patents

Reduced Read/Write Transition Overhead For Storage Media

View page
US Patent:
7889450, Feb 15, 2011
Filed:
Nov 7, 2008
Appl. No.:
12/267330
Inventors:
Barmeshwar Vikramaditya - Eden Prairie MN, US
Bruce Douglas Buch - Westborough MA, US
Jon Karsten Klarqvist - Roseville MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5/09
G11B 5/596
US Classification:
360 51, 360 7708
Abstract:
A technique is described for reducing overhead in a magnetic medium utilizing interspersed timing synchronization fields. In particular, a reader reads timing synchronization fields interspersed within data fields of the medium to obtain timing measurements. The reader is separated from a writer by a distance greater than a distance of the reader to traverse a select timing synchronization field. As such, the writer may perform a direct current (DC) write to the medium to suspend transitional write operations while the reader is reading the select timing synchronization field, and/or while the writer is over a unipolar field (e. g. , a timing synchronization field).

Extraction Of Transducer Position Information From Bit Patterned Magnetic Media

View page
US Patent:
7957084, Jun 7, 2011
Filed:
Feb 4, 2008
Appl. No.:
12/025222
Inventors:
Sundeep Chauhan - Edina MN, US
Barmeshwar Vikramaditya - Edina MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5/02
US Classification:
360 55
Abstract:
Extracting transducer position information from bit patterned magnetic media includes providing a magnetic storage medium having at least one data array with multiple discrete and separated recording bits and providing the transducer adjacent the data array. A readback signal dependent upon the multiple recording bits is generated with the transducer. Determining the transducer position information further includes generating at least a first position signal and a second position signal from the readback signal.

Interspersed Phase-Locked Loop Fields For Data Storage Media Synchronization

View page
US Patent:
7969676, Jun 28, 2011
Filed:
Nov 7, 2008
Appl. No.:
12/267305
Inventors:
Bruce Douglas Buch - Westborough MA, US
Mehmet Fatih Erden - Pittsburgh PA, US
Barmeshwar Vikramaditya - Eden Prairie MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 27/36
US Classification:
360 31, 360 48
Abstract:
Techniques are described for providing media-referenced timing for operations on a data storage medium. In particular, Phase-Locked Loop (PLL) synchronization fields may be interspersed within data fields of the medium and may be read to obtain timing measurements. The PLL fields are illustratively pre-recorded at predetermined intervals on the medium and have a fixed number of dots of the bit patterned medium between the PLL fields. Phase and frequency of a write clock may be controlled based on the read PLL fields to translate the timing measurements from the PLL fields into phase and frequency corrections to synchronize the write clock to the data storage medium.

Bipolar Position Error Bursts With Unipolar Servo Fields

View page
US Patent:
8345368, Jan 1, 2013
Filed:
Dec 15, 2010
Appl. No.:
12/969305
Inventors:
Puskal Prasad Pokharel - Edina MN, US
Barmeshwar Vikramaditya - Eden Prairie MN, US
Assignee:
Seagate Technology LLC - Cupertino CA
International Classification:
G11B 5/09
US Classification:
360 48
Abstract:
A storage medium has a first servo field having magnetic lands separated by nonmagnetic areas, the magnetic lands of the first servo field having a unipolar pattern. The medium further includes a second servo field having magnetic lands separated by nonmagnetic areas, the magnetic lands of the second servo field having a bipolar pattern.

Measurement Of Track Eccentricity On Bit Patterned Media

View page
US Patent:
8045282, Oct 25, 2011
Filed:
Feb 3, 2009
Appl. No.:
12/364784
Inventors:
Barmeshwar Vikramaditya - Eden Prairie MN, US
Sundeep Chauhan - Fremont CA, US
Patrick John Korkowski - Bloomington MN, US
Assignee:
Seagate Technology LLC - Cupertino CA
International Classification:
G11B 27/36
G11B 19/02
G11B 5/596
US Classification:
360 31, 360 7704, 360 71
Abstract:
The eccentricity of tracks defined on a rotating bit patterned media are measured using a readback signal, and the measured eccentricity may be used to control centering of the disk relative to a rotational spindle and/or to control movement of a read/write head relative to a selected track on the disk.

Write Clock Control System For Media Pattern Write Synchronization

View page
US Patent:
20100118426, May 13, 2010
Filed:
Nov 7, 2008
Appl. No.:
12/267168
Inventors:
Barmeshwar Vikramaditya - Eden Prairie MN, US
Bruce Douglas Buch - Westborough MA, US
Mehmet Fatih Erden - Pittsburgh PA, US
Mathew P. Vea - Shrewsbury MA, US
International Classification:
G11B 5/09
G11B 21/02
US Classification:
360 51, 360 75, G9B 5033
Abstract:
A write clock control system comprises a clock controller that determines a phase offset based on a phase difference between a write clock signal and a media pattern corresponding to a given timing synchronization field being read, and a phase interpolator that produces an updated write clock signal by updating the phase of the write clock signal in accordance with control signals that are based on the phase offset signal.

Skew Compensation Signal

View page
US Patent:
20120113539, May 10, 2012
Filed:
Nov 8, 2010
Appl. No.:
12/941466
Inventors:
Sundeep Chauhan - Fremont CA, US
Barmeshwar Vikramaditya - Eden Prairie MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5/09
US Classification:
360 51, G9B 5033
Abstract:
The relative trajectory of a transducer head over bit-patterned media (BPM) may be skewed with respect to a down-track direction on the media (i.e., skew error). In order to resolve the skew error, the presently disclosed technology measures the skew error without adding additional patterning on the media. A detector circuit detects a sequential series of data bits on a storage media. The sequential series of data bits alternate between at least two tracks on the storage media. The sequential series of data bits are sent to a timing circuit, which sets a time stamp indicating when each data bit is received using, for example, a delay chain or a voltage ramp. A time elapsed between receiving a first data bit, a second data bit, and a third data bit is tracked. Transducer head skew is adjusted based on a signal containing the time elapsed between the bits.

Method For Patterning A Stack

View page
US Patent:
20120273999, Nov 1, 2012
Filed:
Apr 29, 2011
Appl. No.:
13/097841
Inventors:
Sundeep Chauhan - Fremont CA, US
Alexander Kantorov - Dublin CA, US
Kim Yang Lee - Fremont CA, US
David Kuo - Palo Alto CA, US
René Johannes Marinus Van de Veerdonk - Pleasanton CA, US
Barmeshwar Vikramaditya - Eden Prairie MN, US
Assignee:
SEAGATE TECHNOLOGY, LLC - Scotts Valley CA
International Classification:
B29C 59/02
US Classification:
264293, 425112, 425385
Abstract:
The embodiments disclose a method for patterning a stack, including embedding servo patterns within a final template and creating positions of plural cross-tracked shifted position error signal (PES) fields incrementally from the embedded servo patterns on the final template.
Barmeshwar R Vikramaditya from Bellevue, WA, age ~52 Get Report