Patents by Inventor Darshan Shrestha

Darshan Shrestha 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).

  • Selection of pulse repetition intervals for sensing time of flight
    Patent number: 11500094
    Abstract: Sensing apparatus includes a radiation source, which emits pulses of optical radiation toward multiple points in a target scene. A receiver receives the optical radiation that is reflected from the target scene and outputs signals that are indicative of respective times of flight of the pulses to and from the points in the target scene. Processing and control circuitry selects a first pulse repetition interval (PRI) and a second PRI, greater than the first PRI, from a permitted range of PRIs, drives the radiation source to emit a first sequence of the pulses at the first PRI and a second sequence of the pulses at a second PRI, and processes the signals output in response to both the first and second sequences of the pulses in order to compute respective depth coordinates of the points in the target scene.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: November 15, 2022
    Assignee: APPLE INC.
    Inventors: Thierry Oggier, Bernhard Buettgen, Cristiano L Niclass, Rahmi Hezar, Shingo Mandai, Darshan Shrestha, Gary Chung, Moshe Laifenfeld
  • Selection of pulse repetition intervals for sensing time of flight
    Publication number: 20200386890
    Abstract: Sensing apparatus includes a radiation source, which emits pulses of optical radiation toward multiple points in a target scene. A receiver receives the optical radiation that is reflected from the target scene and outputs signals that are indicative of respective times of flight of the pulses to and from the points in the target scene. Processing and control circuitry selects a first pulse repetition interval (PRI) and a second PRI, greater than the first PRI, from a permitted range of PRIs, drives the radiation source to emit a first sequence of the pulses at the first PRI and a second sequence of the pulses at a second PRI, and processes the signals output in response to both the first and second sequences of the pulses in order to compute respective depth coordinates of the points in the target scene.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 10, 2020
    Inventors: Thierry Oggier, Bernhard Buettgen, Cristiano L. Niclass, Rahmi Hezar, Shingo Mandai, Darshan Shrestha, Gary Chung, Moshe Laifenfeld