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Steven Te Kalata

from Sunnyvale, CA
Age ~72
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Also known as:
Steven A Kalata, Steven K Kalata, Steve E Kalata
Phone and address:
746 Bamboo Dr, Sunnyvale, CA 94086
(408) 730-5162
Related to:
Noelia R Sanders, 45D Kalata, 73Karen Kalata, 67Dawn H Kalata, 38Alyssa H Kalata, 42Diane A Kalata, 75Dennis Alan Halalay, 73
Connected to:
Andrea Kalata, 84Douglas M Kalata, 53Jeff Kalata, 67Mike Kalata, 47Ronald T Kalata, 77Scott Kalata, 57Vinod V Kalathil, 56Jeff A Kalatsky, 61Dimitrios J Kalatzis, 74Scott E Kalau, 58

Steven Kalata Phones & Addresses

  • 746 Bamboo Dr, Sunnyvale, CA 94086 (408) 730-5162
  • Santa Clara, CA
  • Ann Arbor, MI

Publications

Us Patents

Light Emitting Diode Array Current Power Supply

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US Patent:
50991922, Mar 24, 1992
Filed:
Oct 12, 1990
Appl. No.:
7/597259
Inventors:
Billy E. Thayer - Corvallis OR
Charles A. Brown - Corvallis OR
Donald M. Reid - Corvallis OR
Steven Kalata - Sunnyvale CA
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
G05F 326
US Classification:
323315
Abstract:
A power supply circuit for an LED print head has a reference current source connected to a printer system reference voltage for providing a second reference voltage for an individual, integrated circuit chip. The reference current source is controlled by an operational amplifier, the output of which comprises the second reference voltage. A plurality of output driver FETs are biased by the reference voltage. Each output driver FET provides current to an associated LED responsive to a data signal. A plurality of control FETs are connected in parallel with each other and in series with each output driver FET for varying the LED output current responsive to programming data signals. A second group of control FETs is interposed in the feedback loop of the operational amplifier for varying the second reference voltage responsive to a different set of programming data signals.

Light Emitting Diode Array Current Power Supply

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US Patent:
48642169, Sep 5, 1989
Filed:
Jan 19, 1989
Appl. No.:
7/300004
Inventors:
Steven Kalata - Sunnyvale CA
Donald M. Reid - Corvallis OR
Charles A. Brown - Corvallis OR
Billy E. Thayer - Corvallis OR
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
G05F 326
US Classification:
323315
Abstract:
A power supply circuit for an LED print head has a reference current source connected to a printer system reference voltage for providing a second reference voltage for an individual, integrated circuit chip. A plurality of substantially similar field effect transistors have their gates connected to the chip reference voltage for providing substantially similar current to each of a plurality of light emitting diodes. The current is enabled to each such LED by the presence or absence of a data signal. A reference resistor in the reference current source permits adjustment so that each of a plurality of integrated circuit chips can provide substantially similar current to each of a plurality of LED dice, or adjust the current level, if required, to achieve similar light output from each LED.
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Steven Te Kalata from Sunnyvale, CA, age ~72 Get Report