Patents by Inventor Mark R. Warren

Mark R. Warren 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).

  • Method and system for maximizing safe laser power of structured laser light projectors used with imaging sensors
    Patent number: 6661820
    Abstract: A system and method for controlling the operating parameters of a laser diode (20) is provided. The laser control system (10) automatically optimizes the laser diode (20) operating characteristics while maintaining a safe peak power for pulse duration and pulse repetition frequency (PRF). The controlled level of output power is based on the laser diode gain determined during calibration of each laser diode projector as well as using the application of predetermined laser safety formulas. The laser control system (10) includes a laser diode (20) that is powered by a laser drive current. The laser diode (20) has a laser output having a peak power level. A detector (28) is coupled to the laser diode (20) for sensing the laser output. A laser driver (18) including a primary control loop (44) is operable, in response to the sensed laser output and a reference (43), to control the laser drive current such that the output power corresponds to the reference (43). A controller (52) is coupled to the laser driver (18).
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: December 9, 2003
    Assignee: Perceptron, Inc.
    Inventors: Joseph Camilleri, David L. Kelly, Mark R. Warren