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Tom V Geukens

from Longmont, CO
Age ~48
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Also known as:
Tom S
Phone and address:
3622 Sunflower Cir, Longmont, CO 80503
Connected to:
Brittani D Geunes, 34Nicholas W Geurds, 36Jaklin I Geurgus, 51Jessica A Geurin, 48Julie K Geurin, 48Kelly D Geurin, 59Larry D Geurin, 74Lawrence Geurin, 84Lori A Geurin, 51Wade W Geurin, 40

Tom Geukens Phones & Addresses

  • 3622 Sunflower Cir, Longmont, CO 80503
  • Boulder, CO

Resumes

Resumes

Tom Geukens Photo 1

Senior Staff Firmware Engineer

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Location:
Longmont, CO
Industry:
Semiconductors
Work:
Marvell Semiconductor since 2006
Staff Engineer
Marvell since Oct 2006
Staff Engineer
Marvell Netherlands 2006 - 2007
Staff Engineer
Ionics EMS Feb 2003 - Nov 2006
Systems and Hardware Architect
Philips Optical Storage 2000 - 2003
Senior Engineer
Education:
Katholieke Hogeschool Kempen 1993 - 1997
Master, Electronics
Skills:
Firmware
Embedded Systems
Debugging
Hardware Architecture
System Architecture
Embedded Software
Semiconductors
C
Fpga
Perl
Pcb Design
Hardware
Software Design
Device Drivers
Python
Subversion
Soc
Electronics
Digital Signal Processors
Asic
Usb
C#
Processors
Ic
Arm
.Net
Analog
Mixed Signal
System Design
Arm Architecture
Field Programmable Gate Arrays
Languages:
English
Dutch
French
German
Tom Geukens Photo 2

Tom Geukens

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Tom Geukens Photo 3

Staff Engineer Marvell Semiconductors

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Position:
Staff Engineer at Marvell Semiconductor, Staff Engineer at Marvell
Location:
Greater Denver Area
Industry:
Semiconductors
Work:
Marvell Semiconductor since 2006
Staff Engineer
Marvell since Oct 2006
Staff Engineer
Marvell Netherlands 2006 - 2007
Staff Engineer
Ionics EMS Feb 2003 - Nov 2006
Systems and Hardware Architect
Philips Optical Storage 2000 - 2003
Senior Engineer
Education:
Katholieke Hogeschool Kempen 1993 - 1997
Master, Electronics
Skills:
Embedded Systems
Embedded Software
Hardware Architecture
Semiconductors
PCB design
Firmware

Publications

Us Patents

Methods And Apparatuses For Detecting A Modulation Transition In An Optical Storage Medium

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US Patent:
8233365, Jul 31, 2012
Filed:
Feb 22, 2008
Appl. No.:
12/036137
Inventors:
Tom Geukens - Boulder CO, US
Assignee:
Marvell International Ltd. - Hamilton
International Classification:
G11B 27/36
G11B 7/00
G11B 20/00
G11B 3/00
G11B 3/74
US Classification:
369 5323, 369 5328, 36912404, 369 4413, 369 4719, 369 61, 369 90, 369107
Abstract:
Circuits, architectures, systems, methods, software, and algorithms for detecting a modulation transition (e. g. , a change from a written portion containing RF-modulated data to an unwritten portion containing only a wobble signal modulation) on an optical storage medium. The method generally includes steps of focusing a first spot of light onto an optical storage medium, wherein the first spot is substantially centered on a first track of the optical storage medium, focusing a satellite spot of light onto an optical storage medium, wherein the satellite spot at least partially overlaps a track adjacent to the first track, generating a satellite signal from light reflected from the optical storage medium from the satellite spot, and detecting the modulation transition by detecting a change in a level of the satellite signal. The present invention advantageously provides for detecting a modulation transition between a main (current) track and an adjacent (next) track, so that demodulation of a signal from an optical storage medium can be smoothly switched from one mode to another.

Automatic Forward Sense Calibration For Writing Systems

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US Patent:
8553513, Oct 8, 2013
Filed:
Jan 20, 2010
Appl. No.:
12/690542
Inventors:
Gary Christopher Maul - Nederweert, NL
Tom Geukens - Boulder CO, US
Assignee:
Marvell International Ltd. - Hamilton
International Classification:
G11B 20/14
G11B 11/00
US Classification:
369 5921, 369 1326
Abstract:
Embodiments of optical disc drives are described that perform automatic forward sense calibration of write laser power using a sample and hold sampling strategy that is automatically determined based on an automatically selected write strategy. Embodiments of the described optical disc drive may be dynamically configured to support any optical disc media, any write mode, and any write strategy. The write strategies supported may include dynamically changing write speeds and/or write power levels across the respective optical media tracks. As the optical drive is automatically configured for a selected write media/write mode/write strategy, the sample and hold sampling delays used to control the sampling of a forward sense feedback signal are also automatically configured, thereby allowing each forward sense sampling point to be aligned with an area of the forward sense feedback signal that corresponds to a power level of interest and that avoids distortion in the feedback signal.

High Speed Forward Sense Sampling In Optical Drives Using Placed Data Patterns

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US Patent:
8599663, Dec 3, 2013
Filed:
Oct 7, 2008
Appl. No.:
12/247009
Inventors:
Tom Geukens - Boulder CO, US
Assignee:
Marvell International Ltd. - Hamilton
International Classification:
G11B 17/00
G11B 7/00
G11B 27/36
G11B 20/18
G11B 5/09
G11B 20/14
US Classification:
369 4753, 36912412, 36912415, 369 4441, 369 5322, 369 5327, 369 4427, 369 4439, 369 4755, 369 5337, 369 5345, 369 4434, 369 4735, 369 5921
Abstract:
An approach is described that allows an optical disc drive to accurately verify the power level of irradiation beam power levels associated a write strategy used in high speed, high density optical disc media formats using a front monitor diode with a relatively slow rise time and/or relative slow fall time compared to the clock cycle speed of the write strategy signal. A portion of encoded data to be written to an optical disc media may be overwritten to include a predetermined data pattern. During write strategy processing of the data, the predetermined data pattern is replaced with a constant write strategy power level. The constant write strategy output placed within the write strategy signal may control the optical disc drive laser to emit a constant irradiation beam for a duration sufficiently long to allow the front monitor diode to obtain an accurate measure of the irradiation beam power level.

System And Method Of Bias Control

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US Patent:
8130609, Mar 6, 2012
Filed:
May 19, 2008
Appl. No.:
12/123222
Inventors:
Tom Geukens - Boulder CO, US
Assignee:
Marvell International Ltd. - Hamilton
International Classification:
G11B 5/00
G11B 7/12
G11B 7/00
US Classification:
369 475, 369 4751, 369116
Abstract:
A system and method of laser bias control in optical recording media applications are disclosed. In some implementations, bias control for output power may be based upon a detected ratio of erase power to write (or peak) power, i. e. , the P/P(or Epsilon, ε) ratio.

Internal Commands For Access Operations

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US Patent:
20210405929, Dec 30, 2021
Filed:
Sep 8, 2021
Appl. No.:
17/469365
Inventors:
- Boise ID, US
Ning Zhao - Milpitas CA, US
Tom V. Geukens - Longmont CO, US
Yun LI - Fremont CA, US
International Classification:
G06F 3/06
G06F 11/07
Abstract:
Methods, systems, and devices for internal commands for access operations are described. A memory sub-system can receive a request to perform an access operation. A first core of the memory sub-system can generate an internal command for performing the access operation. The internal command can include information for storing in a reference queue of the memory sub-system and an identification of a command entry of the reference queue. The first core can issue the internal command to perform the access operation and a second core of the memory sub-system can store the information in the command entry of the reference queue.

Internal Commands For Access Operations

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US Patent:
20210278995, Sep 9, 2021
Filed:
Mar 4, 2020
Appl. No.:
16/809371
Inventors:
- Boise ID, US
Ning Zhao - Milpitas CA, US
Tom V. Geukens - Longmont CO, US
Yun Li - Fremont CA, US
International Classification:
G06F 3/06
G06F 11/07
Abstract:
Methods, systems, and devices for internal commands for access operations are described. A memory sub-system can receive a request to perform an access operation. A first core of the memory sub-system can generate an internal command for performing the access operation. The internal command can include information for storing in a reference queue of the memory sub-system and an identification of a command entry of the reference queue. The first core can issue the internal command to perform the access operation and a second core of the memory sub-system can store the information in the command entry of the reference queue.
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Tom V Geukens from Longmont, CO, age ~48 Get Report