Patents by Inventor Kirk W. Lindstrom

Kirk W. Lindstrom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Infrared receiver with variable input resistance for optical communication systems
    Patent number: 5600128
    Abstract: A large dynamic range infrared receiver with a variable input resistance for use in optical communication systems is described. The variable resistance provides this infrared receiver with three ranges of sensitivity depending on the power of the optical signal incident on the receiver. At low optical power, the variable resistance is high, providing the infrared receiver with high sensitivity. For intermediate optical power the variable resistance is reduced, providing the infrared receiver with medium sensitivity. At high optical power levels, the variable resistance switches to a low value, reducing the infrared receiver's sensitivity and limiting the voltage across the variable resistance.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: February 4, 1997
    Assignee: Hewlett-Packard Company
    Inventor: Kirk W. Lindstrom