Patents by Inventor Markus OBERASCHER

Markus OBERASCHER 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).

  • Semiconductor integrated circuit for optical sensor
    Patent number: 9182276
    Abstract: There is provided a semiconductor integrated circuit for an optical sensor for receiving environmental light through a cover member that attenuates visible light and transmits infrared light and a collecting lens, performing luminosity factor correction based on an amount of received light, and detecting an illuminance, wherein the semiconductor integrated circuit includes a first light receiving element having a first spectral property; a second light receiving element having a second spectral property; and a luminosity factor correction unit configured to perform the luminosity factor correction according to output of the first light receiving element and output of the second light receiving element, wherein the luminosity factor correction unit includes an AD conversion unit performed by time division on the output of the first light receiving element and the output of the second light receiving element, and a calculating unit subtracting digital signals obtained by the conversion.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: November 10, 2015
    Assignees: MITSUMI ELECTRIC CO., LTD., EVERLIGHT ELECTRONICS CO., LTD.
    Inventors: Yuya Kawasaki, Markus Oberascher
  • SEMICONDUCTOR INTEGRATED CIRCUIT FOR OPTICAL SENSOR
    Publication number: 20150036126
    Abstract: There is provided a semiconductor integrated circuit for an optical sensor for receiving environmental light through a cover member that attenuates visible light and transmits infrared light and a collecting lens, performing luminosity factor correction based on an amount of received light, and detecting an illuminance, wherein the semiconductor integrated circuit includes a first light receiving element having a first spectral property; a second light receiving element having a second spectral property; and a luminosity factor correction unit configured to perform the luminosity factor correction according to output of the first light receiving element and output of the second light receiving element, wherein the luminosity factor correction unit includes an AD conversion unit performed by time division on the output of the first light receiving element and the output of the second light receiving element, and a calculating unit subtracting digital signals obtained by the conversion.
    Type: Application
    Filed: July 15, 2014
    Publication date: February 5, 2015
    Applicants: MITSUMI ELECTRIC CO., LTD., EVERLIGHT ELECTRONICS CO., LTD.
    Inventors: Yuya KAWASAKI, Markus OBERASCHER