Patents by Inventor M Satya Chaitanya CHIGATAPU

M Satya Chaitanya CHIGATAPU 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).

  • Amplifier circuit for enabling power efficient and faster pixel settling in image sensors
    Patent number: 11683609
    Abstract: A Complementary Metal Oxide Semiconductor (CMOS) Image Sensor (CIS), includes a pixel circuit, a VSL circuit, and an amplifier. The pixel circuit may generate a reset voltage and a signal voltage, based on a power supply connected to the pixel circuit and/or intensity of light captured by the pixel circuit. The VSL circuit may store pixel information in a pixel load based on settling a voltage at the pixel load to the signal voltage and/or set the voltage at the pixel load to a pixel reset voltage based on settling the voltage at the pixel load to the reset voltage. The amplifier may generate a voltage, based on varying a resistance at an input of the amplifier, to enable the VSL circuit to store the pixel information and/or set the voltage at the pixel load to the pixel reset voltage.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: June 20, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Anurup Saha, M Satya Chaitanya Chigatapu, Madhusudan Govindarajan, Ankush Chowdhury
  • AMPLIFIER CIRCUIT FOR ENABLING POWER EFFICIENT AND FASTER PIXEL SETTLING IN IMAGE SENSORS
    Publication number: 20230022036
    Abstract: A Complementary Metal Oxide Semiconductor (CMOS) Image Sensor (CIS), includes a pixel circuit, a VSL circuit, and an amplifier. The pixel circuit may generate a reset voltage and a signal voltage, based on a power supply connected to the pixel circuit and/or intensity of light captured by the pixel circuit. The VSL circuit may store pixel information in a pixel load based on settling a voltage at the pixel load to the signal voltage and/or set the voltage at the pixel load to a pixel reset voltage based on settling the voltage at the pixel load to the reset voltage. The amplifier may generate a voltage, based on varying a resistance at an input of the amplifier, to enable the VSL circuit to store the pixel information and/or set the voltage at the pixel load to the pixel reset voltage.
    Type: Application
    Filed: January 3, 2022
    Publication date: January 26, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Anurup SAHA, M Satya Chaitanya CHIGATAPU, Madhusudan GOVINDARAJAN, Ankush CHOWDHURY