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Tod Heiles Phones & Addresses

  • 16816 Evergreen Hwy, Vancouver, WA 98683 (360) 882-8287
  • Camas, WA
  • Washougal, WA

Work

Company: Evergreen school district - union high Nov 2009 Position: Engineering teaching assistant

Education

School / High School: University of California, Berkeley 1978 to 1984

Skills

Manufacturing • Fmea • Modeling • Design For Manufacturing • Project Management • Mechanical Engineering • R&D • Matlab • 3D Modeling • Engineering • Electronics • Finite Element Analysis • Moldflow • Dynamic Simulation • Cross Functional Team Leadership • Product Development

Languages

Spanish

Interests

Children • Education • Environment • Science and Technology • Health

Industries

Computer Hardware

Resumes

Resumes

Tod Heiles Photo 1

Computer Science Student

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Location:
16816 southeast Evergreen Hwy, Vancouver, WA 98683
Industry:
Computer Hardware
Work:
Evergreen School District - Union High since Nov 2009
Engineering Teaching Assistant

Hewlett-Packard May 2006 - May 2009
Lead Imaging System Engineer

Hewlett-Packard May 1998 - May 2006
Sensor Systems R&D Engineer

Hewlett-Packard May 1995 - May 1998
Mechanical R&D Engineer

Hewlett-Packard May 1989 - May 1995
Manufacturing Engineer
Education:
University of California, Berkeley 1978 - 1984
Skills:
Manufacturing
Fmea
Modeling
Design For Manufacturing
Project Management
Mechanical Engineering
R&D
Matlab
3D Modeling
Engineering
Electronics
Finite Element Analysis
Moldflow
Dynamic Simulation
Cross Functional Team Leadership
Product Development
Interests:
Children
Education
Environment
Science and Technology
Health
Languages:
Spanish

Publications

Us Patents

Unitary Latching Device For Secure Positioning Of Print Cartridge During Printing, Priming And Replenishment

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US Patent:
6367918, Apr 9, 2002
Filed:
Oct 31, 1999
Appl. No.:
09/431711
Inventors:
Tod S Heiles - Vancouver WA
Kenneth R Williams - Vancouver WA
Thomas Cocklin - Ridgefield WA
B Michael Eckard - Cardiff CA
Christopher Taylor - Barcelona, ES
Richard H Lewis - Barcelona, ES
Antoni Murcia - San Diego CA
Norman E Pawlowski - Corvallis OR
Ted Lee - San Diego CA
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
B41J 2175
US Classification:
347 86
Abstract:
A unitary latching device moves between an open position allowing individual inkjet print cartridges to be installed or replaced and a closed position securely positioning a plurality of print cartridges in a carriage during printing, replenishing and servicing modes.

Printing Techniques To Hide Swath Boundary Banding

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US Patent:
6578943, Jun 17, 2003
Filed:
Oct 31, 2001
Appl. No.:
10/004147
Inventors:
Dan Arquilevich - Portland OR
William S. Osborne - Camas WA
Tod S. Heiles - Vancouver WA
Mun Yew Lee - Singapore, SG
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
B41J 2205
US Classification:
347 15, 347 43, 347 98
Abstract:
The present invention provides a dynamic adjustment for black ink volume to print a black object whose height is greater than one swath of the inkjet printer. The black ink volume is increased by using a greater number of nozzles compared to the number of nozzles used to print color or a second fluid for underprinting the black ink.

Pen Alignment Using A Color Sensor

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US Patent:
6582052, Jun 24, 2003
Filed:
Sep 9, 2002
Appl. No.:
10/238860
Inventors:
Sam Sarmast - Vancouver WA
Tod S. Heiles - Vancouver WA
Algird M. Gudaitis - Vancouver WA
Assignee:
Hewlett-Packard Development Company, L.P. - Houston TX
International Classification:
B41J 29393
US Classification:
347 19, 347 43, 101486
Abstract:
A pen alignment method for a multi-pen printer is provided, the method including directing a first pen to print a first pattern of a first color, directing a second pen to print a second pattern of a second color in a predetermined relative alignment with the first pattern to form a test block, determining an actual hue of the test block via spectral analysis of the test block using a color sensor, and comparing the actual hue of the test block with an expected hue of the test block to determine whether the first and second pens are misaligned relative to each other, wherein the expected hue of the test block is the hue that would be detected if the first pen and second pen were correctly aligned.

Calibrating System For A Compact Optical Sensor

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US Patent:
6655778, Dec 2, 2003
Filed:
Oct 2, 2001
Appl. No.:
09/970196
Inventors:
Dan Arquilevich - Portland OR
Algird M. Gudaitis - Vancouver WA
Sam Sarmast - Vancouver WA
Tod S. Heiles - Vancouver WA
Assignee:
Hewlett-Packard Development Company, L.P. - Houston TX
International Classification:
B41J 29393
US Classification:
347 19, 347 14
Abstract:
A compact optical sensing system is used in hardcopy devices for scanning and/or printing images, for instance, using inkjet printing technology in desktop printing or in photographic printers appearing in grocery and variety stores. Several light emitting diodes (âLEDsâ) illuminate a sheet of print media, and one or more photodiodes receive light reflected from the sheet. The photodiode generates signals in response to the light received, and the hardcopy device uses these signals to adjust printing parameters for optimal print quality. Using a chip-on-board process, the bare silicon die for each component is wire bonded directly to a printed circuit board assembly, allowing at least four LEDs (blue, green, red and soft-orange) to be grouped closely together in a space smaller than that occupied by a factory-made, single-packaged LED. A calibrating system uses a white target covered for cleanliness by a windowed door which is opened/closed by a printhead carriage.

Tuning System For A Compact Optical Sensor

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US Patent:
6659578, Dec 9, 2003
Filed:
Oct 2, 2001
Appl. No.:
09/969745
Inventors:
Algird M. Gudaitis - Vancouver WA
Sam Sarmast - Vancouver WA
Tod S. Heiles - Vancouver WA
Dan Arquilevich - Portland OR
Assignee:
Hewlett-Packard Development Company, L.P. - Houston TX
International Classification:
B41J 29393
US Classification:
347 3, 347 19
Abstract:
A compact optical sensing system is used in hardcopy devices for scanning and/or printing images, for instance, using inkjet printing technology in desktop printing or in photographic printers appearing in grocery and variety stores. Several light emitting diodes (âLEDsâ) illuminate a sheet of print media, and one or more photodiodes receive light reflected from the sheet. The photodiode generates signals in response to the light received, and the hardcopy device uses these signals to adjust printing parameters for optimal print quality. Using a chip-on-board process, the bare silicon die for each component is wire bonded directly to a printed circuit board assembly, allowing at least four LEDs (blue, green, red and soft-orange) to be grouped closely together in a space smaller than that occupied by a factory-made, single-packaged LED. A calibrating system uses a white target covered for cleanliness by a windowed door which is opened/closed by a printhead carriage.

Method To Correct For Color Error Caused By Malfunctioning Ink Ejection Elements

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US Patent:
6722751, Apr 20, 2004
Filed:
Jan 30, 2002
Appl. No.:
10/061931
Inventors:
Jeffrey H. Barr - San Diego CA
Jennifer Korngiebel - San Diego CA
Tod S. Heiles - Vancouver WA
Steven L Webb - Murrieta CA
Jeffrey D Rutland - San Diego CA
Assignee:
Hewlett-Packard Development Company, L.P. - Houston TX
International Classification:
B41J 29393
US Classification:
347 19, 347 43
Abstract:
A method of correcting for malfunctioning ink ejection elements in a printing system using a single pass over a recording medium which includes obtaining a standard printmask, identifying ink ejection elements which are malfunctioning, ascertaining an original color measurement value for each pixel which will be printed with the malfunctioning ink ejection elements, determining a replacement color measurement value closest in value to the original color measurement value which does not use the malfunctioning ink ejection elements for each pixel which will be printed with the malfunctioning ink ejection elements and modifying the standard printmask by adjusting the number and color of ink drops deposited based on the replacement color measurement value for each pixel which will be printed with the malfunctioning ink ejection elements to create a modified printmask.

Compact Optical Sensing System

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US Patent:
6764158, Jul 20, 2004
Filed:
Oct 2, 2001
Appl. No.:
09/970419
Inventors:
Dan Arquilevich - Portland OR
Tod S. Heiles - Vancouver WA
Algird M. Gudaitis - Vancouver WA
Sam Sarmast - Vancouver WA
Assignee:
Hewlett-Packard Development Company, L.P. - Houston TX
International Classification:
B41J 29393
US Classification:
347 19
Abstract:
A compact optical sensing system is used in hardcopy devices for scanning and/or printing images, for instance, using inkjet printing technology in desktop printing or in photographic printers appearing in grocery and variety stores. Several light emitting diodes (âLEDsâ) illuminate a sheet of print media, and one or more photodiodes receive light reflected from the sheet. The photodiode generates signals in response to the light received, and the hardcopy device uses these signals to adjust printing parameters for optimal print quality. Using a chip-on-board process, the bare silicon die for each component is wire bonded directly to a printed circuit board assembly, allowing at least four LEDs (blue, green, red and soft-orange) to be grouped closely together in a space smaller than that occupied by a factory-made, single-packaged LED. A calibrating system uses a white target covered for cleanliness by a windowed door which is opened/closed by a printhead carriage.

Printer With Print Mode Masking Periodic Carriage Vibration

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US Patent:
6819448, Nov 16, 2004
Filed:
Sep 28, 1998
Appl. No.:
09/162340
Inventors:
Kenneth R. William - Vancouver WA
Tod S Heiles - Vancouver WA
Assignee:
Hewlett-Packard Development Company, L.P. - Houston TX
International Classification:
G06K 1502
US Classification:
358 15, 347 27, 347 32, 347 37, 347 39, 358296
Abstract:
A shuttle-type printer has a movable carriage to carry and position at least one pen over a printing surface. The printer also has a carriage positioning system coupled to move the carriage at a slew rate in swaths over the printing surface. The carriage positioning system starts the carriage at a starting position for individual swaths. The carriage positioning system implements techniques for masking the effects of periodic vibrations in the printer. According to one technique, the carriage positioning system varies the starting position for the individual swaths. According to a second technique, the carriage positioning system makes multiple passes before advancing the recording media and varies the slew rate for individual passes. The techniques do not eliminate or reduce the vibrations themselves, but mask their effects in the print results that are caused by period vibrations in the printer.
Tod Scot Heiles from Vancouver, WA, age ~63 Get Report