Patents by Inventor Darren J. Rollman

Darren J. Rollman 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).

  • Patent number: 11469788
    Abstract: Multiple sensors are coupled to a first pin of a PSI5 transceiver to receive a sensor bus signal. A Manchester decoder is coupled to a second pin and a battery is coupled to a third pin. A comparator receives a first voltage that is proportional to a current on the sensor bus signal and a second voltage that is proportional to a base current on the sensor bus signal and sends a data output signal to the second pin. A sample-and-hold circuit captures a third voltage used to effect the second voltage responsive to a high value on a base current sampling signal. A base-current-renewal circuit detects edge transitions on the data output signal and when the data output signal has no edge transitions for a period of time greater than a gap time defined in a PSI5 standard, sets the base current sampling signal high.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: October 11, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sri Navaneethakrishnan Easwaran, Ted F. Lekan, Michael J. Zroka, Darren J. Rollman
  • Publication number: 20200373960
    Abstract: Multiple sensors are coupled to a first pin of a PSI5 transceiver to receive a sensor bus signal. A Manchester decoder is coupled to a second pin and a battery is coupled to a third pin. A comparator receives a first voltage that is proportional to a current on the sensor bus signal and a second voltage that is proportional to a base current on the sensor bus signal and sends a data output signal to the second pin. A sample-and-hold circuit captures a third voltage used to effect the second voltage responsive to a high value on a base current sampling signal. A base-current-renewal circuit detects edge transitions on the data output signal and when the data output signal has no edge transitions for a period of time greater than a gap time defined in a PSI5 standard, sets the base current sampling signal high.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Inventors: Sri Navaneethakrishnan Easwaran, Ted F. Lekan, Michael J. Zroka, Darren J. Rollman
  • Patent number: 10784917
    Abstract: Multiple sensors are coupled to a first pin of a PSI5 transceiver to receive a sensor bus signal. A Manchester decoder is coupled to a second pin and a battery is coupled to a third pin. A comparator receives a first voltage that is proportional to a current on the sensor bus signal and a second voltage that is proportional to a base current on the sensor bus signal and sends a data output signal to the second pin. A sample-and-hold circuit captures a third voltage used to effect the second voltage responsive to a high value on a base current sampling signal. A base-current-renewal circuit detects edge transitions on the data output signal and when the data output signal has no edge transitions for a period of time greater than a gap time defined in a PSI5 standard, sets the base current sampling signal high.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: September 22, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Sri Navaneethakrishnan Easwaran, Ted F. Lekan, Michael J. Zroka, Darren J. Rollman
  • Publication number: 20200169284
    Abstract: Multiple sensors are coupled to a first pin of a PSI5 transceiver to receive a sensor bus signal. A Manchester decoder is coupled to a second pin and a battery is coupled to a third pin. A comparator receives a first voltage that is proportional to a current on the sensor bus signal and a second voltage that is proportional to a base current on the sensor bus signal and sends a data output signal to the second pin. A sample-and-hold circuit captures a third voltage used to effect the second voltage responsive to a high value on a base current sampling signal. A base-current-renewal circuit detects edge transitions on the data output signal and when the data output signal has no edge transitions for a period of time greater than a gap time defined in a PSI5 standard, sets the base current sampling signal high.
    Type: Application
    Filed: July 24, 2019
    Publication date: May 28, 2020
    Inventors: Sri Navaneethakrishnan Easwaran, Ted F. Lekan, Michael J. Zroka, Darren J. Rollman