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Mehran Ataee Phones & Addresses

  • 1143 Stafford Dr, Cupertino, CA 95014 (408) 996-3570 (408) 564-6367
  • Santa Clara, CA
  • Mountain View, CA
  • Orange, CA
  • San Jose, CA
  • Los Banos, CA
  • 1143 Stafford Dr, Cupertino, CA 95014 (408) 644-2887

Work

Company: Texas instruments Sep 2010 to Sep 2013 Address: Santa Clara CA Position: Cto office - analog and system power archtiect

Education

Degree: Associate degree or higher

Industries

Semiconductors

Resumes

Resumes

Mehran Ataee Photo 1

Analog And System Power Architect

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Position:
CTO office - Analog and System Power Archtiect at Texas Instruments
Location:
Sunnyvale, California
Industry:
Semiconductors
Work:
Texas Instruments - Santa Clara CA since Sep 2010
CTO office - Analog and System Power Archtiect

Cisco systems Mar 2000 - Aug 2010
Technical Lead, Networking Chassis/Systems, Analog, & Power Design

Quantum Corp 1993 - 2000
Engineering Manager

Business Records

Name / Title
Company / Classification
Phones & Addresses
Mehran Ataee
Managing
Mit Investments LLC
Investments
1143 Stafford Dr, Cupertino, CA 95014

Publications

Us Patents

Common Mode Termination

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US Patent:
6492880, Dec 10, 2002
Filed:
Feb 21, 2001
Appl. No.:
09/803610
Inventors:
Jim Chiappe - Fremont CA
Dean Wood - Campbell CA
Mehran Ataee - Cupertino CA
Meilissa Lum - Campbell CA
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H01P 124
US Classification:
333 22R, 333 24 R, 333 32, 333 5, 375258, 379398
Abstract:
A common mode termination includes a shielded connector, a receive section and a transmit section, each section comprising an isolation transformer, a common mode transformer, a reference autotransformer, and an AC shield return. Each transmit section reference autotransformer and receive section reference autotransformer has a center tap for the application of a bias voltage and a bias voltage return. The bias voltage is fed through a common mode transformer, and the resultant common mode termination reduces the conduction of EMI from the serdes coupled to the common mode termination to cables connected to the connector. This common mode termination also provides a reference termination for the copper twisted pair cable and reduces resonances on the cable. Finally, this termination also provides filtering on the DC power source wires and improves noise immunity from transients coupled onto the twisted pair cable into the system.

Method And Apparatus For Parking A Read/Write Head During Power Interruptions By Dynamic Sequencing

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US Patent:
6566832, May 20, 2003
Filed:
May 4, 2001
Appl. No.:
09/849321
Inventors:
Mehran Ataee - Cupertino CA
Assignee:
Maxtor Corporation - Longmont CO
International Classification:
G05B 1101
US Classification:
318560, 31856816, 318453, 318459, 360 75, 360290
Abstract:
An apparatus for parking a read/write head during power interruptions and methods of operating the same result in a hard disk drive apparatus that reduces the time to steady state the operating hard disk drive. The apparatus for reducing the time to steady state the operating disk drive having an actuator arm coupled to a voice coil for latching the actuator arm when power is interrupted comprises a Y-winding spindle motor having a first winding, a second winding, and a third-winding, and a spindle motor controller coupled to the Y-winding spindle motor configured to dynamically short the first winding and the second windings to produce a retarding force against the Y-winding motor and to direct power produced by the third winding in series with the first two windings in parallel to the voice coil for moving the actuator arm to a latched position and to maintain sufficient power to the spindle motor to provide greater operating range (headroom).

Interface To Regulate Voltage For Asic Power Management

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US Patent:
8264210, Sep 11, 2012
Filed:
Oct 10, 2008
Appl. No.:
12/249589
Inventors:
Mehran Ataee - Cupertino CA,
Udupi Harisharan - Fremont CA,
Jun Qian - San Jose CA,
Thomas A. Hamilton - Milpitas CA,
Senthil Somasundaram - Sunnyvale CA,
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
G05F 1/00
H03L 5/00
US Classification:
323266, 327306
Abstract:
A method and apparatus to regulate voltage used to power an ASIC comprising an ASIC having a signal source and a modulator. The modulator establishes a characteristic of a signal created by the signal source to indicate a voltage level to be used to power the ASIC. The signal is communicated to a voltage regulator to apply an optimal voltage to the ASIC.

Pwm/Linear Driver For Disk Drive Voice Coil Actuator

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US Patent:
5838515, Nov 17, 1998
Filed:
Apr 30, 1996
Appl. No.:
8/640272
Inventors:
Sassan Mortazavi - San Jose CA
Mehran Ataee - Cupertino CA
Assignee:
Quantum Corporation - Milpitas CA
International Classification:
G11B 554
US Classification:
360 7812
Abstract:
A voice coil motor (VCM) driver has four field effect transistors connected to a motor coil as an H-bridge. A sense resistor in series with the coil and the H-bridge senses coil current. A feedback amplifier provides a feedback signal from a voltage developed across the sense resistor. A summing junction sums current command signals with the feedback signal. A transconductance loop compensation amplifier has an inverting input connected to the summing junction, has a non-inverting input connected to a reference level, and has an output control signal node. The control level is connected to control linear transconductance differential driver amplifiers including the four field effect transistors during a linear drive mode. A pulse width modulation (PWM) generator connected to the output control signal node generates variable duty cycle pulses related to the control level during a PWM drive mode applies the pulses to a first one of the four field effect transistors, and a polarity control circuit responds to a driving current direction signal by controlling another one of the four field effect transistors during the PWM drive mode.

Methods And Apparatus For Preventing Disk Drive Damage By Parking A Transducer During Microprocessor Failures

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US Patent:
5872670, Feb 16, 1999
Filed:
Feb 7, 1997
Appl. No.:
8/797390
Inventors:
Mehran Ataee - Cupertino CA
Assignee:
Quantum Corporation - Milpitas CA
International Classification:
G11B 1518
US Classification:
360 69
Abstract:
a An apparatus for preventing damage to components of a hard disk drive having a microprocessor when the microprocessor fails. The hard disk drive further includes at least one read/write head and a data storage disk having a designated parking zone. The apparatus includes a microprocessor monitoring circuit configured to be coupled to the microprocessor. The microprocessor monitoring circuit is configured for detecting a microprocessor failure condition in the microprocessor. The apparatus further includes a head park circuit coupled to the microprocessor monitoring circuit. The head park circuit is configured to receive a park command from the microprocessor monitoring circuit when the microprocessor failure condition is detected by the microprocessor monitoring circuit. The head park circuit, upon a receipt of the park command, parks the at least one read/write head of the hard disk drive over the designated parking zone, whereby the microprocessor monitoring circuit issues the park command to cause the parking of the at least one read/write head without intervention from the microprocessor when the microprocessor failure condition is detected by the microprocessor monitoring circuit.

Switched Boost Voltage Generator For Actuator Retract In Disk Drive

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US Patent:
5737144, Apr 7, 1998
Filed:
Jun 5, 1996
Appl. No.:
8/658417
Inventors:
Mehran Ataee - Cupertino CA
Sassan Mortazavi - San Jose CA
Assignee:
Quantum Corporation - Milpitas CA
International Classification:
G11B 2102
US Classification:
360 75
Abstract:
A voltage boost circuit within a hard disk drive is realized by switching a center tap node of a three phase spindle motor to ground during a power down sequence, thereby employing inductance of the spindle motor as a voltage boost inductor. The boosted voltage is rectified and stored in a capacitor for use, e. g. to control a source transistor of an actuator driver during an actuator retract operation.
Mehran Ataee from Cupertino, CA, age ~65 Get Report