Patents by Inventor Wallace D. Chalmers, JR.

Wallace D. Chalmers, JR. 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).

  • Wide dynamic range photo sensor
    Patent number: 10522576
    Abstract: Some embodiments described herein are directed to a photo sensor and a method of operating a photo sensor. In an embodiment, a photo sensor comprises a photo diode, a filter circuit, and an output circuit. The filter circuit has an input node configured to be electrically coupled to an output node of the photo diode, and has an output node. The filter circuit has an adjustable gain, and the adjustable gain is adjustable based on a signal output from the filter circuit. The output circuit has an input node configured to be electrically coupled to the output node of the filter circuit.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: December 31, 2019
    Assignee: WCSystems Corporation
    Inventor: Wallace D. Chalmers, Jr.
  • Photo Sensor
    Publication number: 20180033814
    Abstract: Some embodiments described herein are directed to a photo sensor and a method of operating a photo sensor. In an embodiment, a photo sensor comprises a photo diode, a filter circuit, and an output circuit. The filter circuit has an input node configured to be electrically coupled to an output node of the photo diode, and has an output node. The filter circuit has an adjustable gain, and the adjustable gain is adjustable based on a signal output from the filter circuit. The output circuit has an input node configured to be electrically coupled to the output node of the filter circuit.
    Type: Application
    Filed: July 25, 2017
    Publication date: February 1, 2018
    Inventor: Wallace D. Chalmers, JR.
  • Photo Sensor
    Publication number: 20180033815
    Abstract: Some embodiments described herein are directed to a photo sensor and a method of operating a photo sensor. In an embodiment, a photo sensor comprises a photo diode, a filter circuit, and an output circuit. The filter circuit has an input node configured to be electrically coupled to an output node of the photo diode, and has an output node. The filter circuit has an adjustable gain, and the adjustable gain is adjustable based on a signal output from the filter circuit. The output circuit has an input node configured to be electrically coupled to the output node of the filter circuit.
    Type: Application
    Filed: July 25, 2017
    Publication date: February 1, 2018
    Inventor: Wallace D. Chalmers, JR.