Patents by Inventor Venkataramanan Ramamurthy

Venkataramanan Ramamurthy 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).

  • Ultrasonic transducer system and method using selective interleaved excitation pulse frequency
    Patent number: 11359947
    Abstract: In circuitry for applying a pulse train to excite a transducer, the circuitry selects a first set having a first number of pulses at a first frequency and a second set of pulses having a second number of pulses at a second frequency differing from the first frequency. At least one pulse from the first set is located in the pulse train between one or more of the pulses at the second frequency.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: June 14, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Anand Dabak, Amardeep Sathyanarayana, Luis Fernando Reynoso, Venkataramanan Ramamurthy
  • ULTRASONIC TRANSDUCER SYSTEM AND METHOD USING SELECTIVE INTERLEAVED EXCITATION PULSE FREQUENCY
    Publication number: 20190360849
    Abstract: In circuitry for applying a pulse train to excite a transducer, the circuitry selects a first set having a first number of pulses at a first frequency and a second set of pulses having a second number of pulses at a second frequency differing from the first frequency. At least one pulse from the first set is located in the pulse train between one or more of the pulses at the second frequency.
    Type: Application
    Filed: August 12, 2019
    Publication date: November 28, 2019
    Inventors: Anand Dabak, Amardeep Sathyanarayana, Luis Fernando Reynoso, Venkataramanan Ramamurthy
  • Ultrasonic transducer system and method using selective interleaved excitation pulse frequency
    Patent number: 10378938
    Abstract: A transducer system with a transducer and circuitry for applying a pulse train to excite the transducer. The circuitry for applying a pulse train selects a first set having a first number of pulses at a first frequency and a second set of pulses having a second number of pulses at a second frequency differing from the first frequency. At least one pulse from the first set is located in the pulse train between one or more of the pulses at the second frequency.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: August 13, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Anand Dabak, Amardeep Sathyanarayana, Luis Fernando Reynoso, Venkataramanan Ramamurthy
  • Ultrasonic Transducer System and Method Using Selective Interleaved Excitation Pulse Frequency
    Publication number: 20160080093
    Abstract: A transducer system with a transducer and circuitry for applying a pulse train to excite the transducer. The circuitry for applying a pulse train selects a first set having a first number of pulses at a first frequency and a second set of pulses having a second number of pulses at a second frequency differing from the first frequency. At least one pulse from the first set is located in the pulse train between one or more of the pulses at the second frequency.
    Type: Application
    Filed: September 11, 2015
    Publication date: March 17, 2016
    Inventors: Anand Dabak, Amardeep Sathyanarayana, Luis Fernando Reynoso, Venkataramanan Ramamurthy
  • SWITCHED-CAPACITOR CURRENT REFERENCE WITH REDUCED OUTPUT RIPPLE
    Publication number: 20110234290
    Abstract: A switched-capacitor current reference contains an amplifier, a current mirror circuit and a feedback circuit. In an embodiment, the feedback circuit receives a time-varying voltage waveform at a node connected to a switched-capacitor block used within the current mirror circuit, and is operated to provide a constant voltage waveform on an input terminal of the amplifier. Ripple in the output reference current provided by the switched-capacitor current reference is minimized or eliminated.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 29, 2011
    Inventor: Venkataramanan Ramamurthy