Patents by Inventor Jae-Jin YEO

Jae-Jin YEO 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).

  • Image sensors and image processing systems
    Patent number: 8593319
    Abstract: An image sensor includes a delta-sigma analog-to-digital converter (ADC) including a delta-sigma modulator (DSM) and a voltage adjusting circuit. The DSM is configured to perform delta-sigma modulation on an analog signal from a unit pixel. The delta-sigma ADC is configured to convert the analog signal to a digital signal. The voltage adjusting circuit includes a replica inverter having a same configuration as at least one inverter included in the DSM. The voltage adjusting circuit is configured to adjust a power supply voltage and an input voltage provided to the at least one inverter based on a current flowing in the replica inverter.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: November 26, 2013
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Min-Ho Kwon, Seog-Heon Ham, Jeong-Jin Roh, Jae-Jin Yeo, Yong-Suk Choi, Gun-Hee Han
  • IMAGE SENSORS AND IMAGE PROCESSING SYSTEMS
    Publication number: 20130162857
    Abstract: An image sensor includes a delta-sigma analog-to-digital converter (ADC) including a delta-sigma modulator (DSM) and a voltage adjusting circuit. The DSM is configured to perform delta-sigma modulation on an analog signal from a unit pixel. The delta-sigma ADC is configured to convert the analog signal to a digital signal. The voltage adjusting circuit includes a replica inverter having a same configuration as at least one inverter included in the DSM. The voltage adjusting circuit is configured to adjust a power supply voltage and an input voltage provided to the at least one inverter based on a current flowing in the replica inverter.
    Type: Application
    Filed: September 12, 2012
    Publication date: June 27, 2013
    Applicants: Industry-Academic Cooperation Foundation, Yonsei University, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-Ho KWON, Seog-Heon HAM, Jeong-Jin ROH, Jae-Jin YEO, Yong-Suk CHOI, Gun-Hee HAN