Patents by Inventor Shankkar BALASUBRAMANIAN

Shankkar BALASUBRAMANIAN 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).

  • Near field communication device with voltage regulation comprising an integral controller and a variable shunt resistance
    Patent number: 10979102
    Abstract: An electronic device is arranged to receive near-field communication signals and comprises: first and second antenna connection terminals and a variable shunt resistance connected between the first and second antenna connection terminals. The device further comprises a peak detector arranged to detect an amplitude of an incoming near-field communication signal across the antenna connection terminals and to produce a peak signal (Vpd) dependent on the amplitude and a comparator arranged to produce an error signal, wherein the error signal is dependent on a difference between the peak signal and a reference signal (Vrefpeak). The device also comprises an integral controller which is arranged to vary the shunt resistance in response to an integral of the error signal. Said configuration is employed for regulating the received voltage and reducing voltage swing.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: April 13, 2021
    Assignee: Nordic Semiconductor ASA
    Inventor: Shankkar Balasubramanian
  • NEAR FIELD COMMUNICATION DEVICE WITH VOLTAGE REGULATION COMPRISING AN INTEGRAL CONTROLLER AND A VARIABLE SHUNT RESISTANCE
    Publication number: 20190326956
    Abstract: An electronic device is arranged to receive near-field communication signals and comprises: first and second antenna connection terminals and a variable shunt resistance connected between the first and second antenna connection terminals. The device further comprises a peak detector arranged to detect an amplitude of an incoming near-field communication signal across the antenna connection terminals and to produce a peak signal (Vpd) dependent on the amplitude and a comparator arranged to produce an error signal, wherein the error signal is dependent on a difference between the peak signal and a reference signal (Vrefpeak). The device also comprises an integral controller which is arranged to vary the shunt resistance in response to an integral of the error signal. Said configuration is employed for regulating the received voltage and reducing voltage swing.
    Type: Application
    Filed: November 29, 2017
    Publication date: October 24, 2019
    Applicant: Nordic Semiconductor ASA
    Inventor: Shankkar BALASUBRAMANIAN