Patents by Inventor Dipayan Das

Dipayan Das 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).

  • Breakdown voltage monitoring for avalanche diodes
    Patent number: 11233966
    Abstract: An image sensor includes an avalanche diode, an avalanche detector circuit, a sample and hold circuit, and a sample collection circuit. The avalanche diode has an output voltage that changes in response to an avalanche event in the avalanche diode. The avalanche detector circuit is configured to generate a sample capture signal in response to detecting the avalanche event. The sample and hold circuit is configured to store a sample of the output voltage in response to receiving the sample capture signal. The sample collection circuit is configured to collect the sample of the output voltage from the sample and hold circuit.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: January 25, 2022
    Assignee: Apple Inc.
    Inventors: Cristiano L. Niclass, Dipayan Das