Patents by Inventor Lanka Sasi Rama SUBRAHMANYAM

Lanka Sasi Rama SUBRAHMANYAM 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).

  • Receiver circuitry having a transistor pair for input voltage clipping
    Patent number: 11881884
    Abstract: Receiver circuitry for an input/output device includes first stage circuitry and second stage. The first stage circuitry has a first input to receive an input signal, voltage adjustment circuitry, and differential amplifier circuitry. The first stage circuitry is coupled to the first input and has a transistor pair to receive the input signal, and adjust a voltage value of the input signal to generate an adjusted signal. The differential amplifier circuitry receives the adjusted signal and a reference signal, and generates a first differential signal and a second differential signal. The second stage circuitry receives the first differential signal and the second differential signal, and generates an output signal based on the first differential signal and the second differential signal.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: January 23, 2024
    Assignee: XILINX, INC.
    Inventors: Hari Bilash Dubey, Lanka Sasi Rama Subrahmanyam
  • RECEIVER CIRCUITRY HAVING A TRANSISTOR PAIR FOR INPUT VOLTAGE CLIPPING
    Publication number: 20230299802
    Abstract: Receiver circuitry for an input/output device includes first stage circuitry and second stage. The first stage circuitry has a first input to receive an input signal, voltage adjustment circuitry, and differential amplifier circuitry. The first stage circuitry is coupled to the first input and has a transistor pair to receive the input signal, and adjust a voltage value of the input signal to generate an adjusted signal. The differential amplifier circuitry receives the adjusted signal and a reference signal, and generates a first differential signal and a second differential signal. The second stage circuitry receives the first differential signal and the second differential signal, and generates an output signal based on the first differential signal and the second differential signal.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 21, 2023
    Inventors: Hari Bilash DUBEY, Lanka Sasi Rama SUBRAHMANYAM