Patents by Inventor Oscar Joseu Pacheco Barajas

Oscar Joseu Pacheco Barajas 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).

  • Electronic device for automatic calibration of swept-source optical coherence tomography systems
    Patent number: 11054243
    Abstract: A circuit for generating a swept source optical coherence tomography (SS-OCT) imaging calibration clock. The circuit comprises a first photodetector configured to convert an SS-OCT optical calibration signal to an SS-OCT electrical calibration signal, a first analog-to-digital converter (ADC) coupled to the first photodetector and configured to convert the SS-OCT electrical calibration signal to a sequence of SS-OCT calibration signal digital values, a processing unit coupled to the first ADC that, when initiated, is configured to demodulate the sequence of SS-OCT calibration signal digital values to obtain a sequence of SS-OCT wave number digital values, where each SS-OCT wave number digital value corresponds to one of the SS-OCT calibration signal digital values, and a level crossing sampler that is configured to track a wave number associated with the SS-OCT optical calibration signal and to generate an SS-OCT calibration clock pulse.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: July 6, 2021
    Assignee: THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Sebastian Hoyos, Oscar Joseu Pacheco Barajas, Amir Tofighi Zavareh
  • Electronic Device for Automatic Calibration of Swept-Source Optical Coherence Tomography Systems
    Publication number: 20200378744
    Abstract: A circuit for generating a swept source optical coherence tomography (SS-OCT) imaging calibration clock. The circuit comprises a first photodetector configured to convert an SS-OCT optical calibration signal to an SS-OCT electrical calibration signal, a first analog-to-digital converter (ADC) coupled to the first photodetector and configured to convert the SS-OCT electrical calibration signal to a sequence of SS-OCT calibration signal digital values, a processing unit coupled to the first ADC that, when initiated, is configured to demodulate the sequence of SS-OCT calibration signal digital values to obtain a sequence of SS-OCT wave number digital values, where each SS-OCT wave number digital value corresponds to one of the SS-OCT calibration signal digital values, and a level crossing sampler that is configured to track a wave number associated with the SS-OCT optical calibration signal and to generate an SS-OCT calibration clock pulse.
    Type: Application
    Filed: April 25, 2018
    Publication date: December 3, 2020
    Applicant: The Texas A&M University System
    Inventors: Sebastian Hoyos, Oscar Joseu Pacheco Barajas, Amir Tofighi Zavareh