Patents by Inventor Tetsuya Umekida

Tetsuya Umekida 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).

  • Display device and electronic device
    Patent number: 9824651
    Abstract: A display device disclosed includes a liquid crystal panel (6), and an image optimization circuit (4) for switching, in accordance with an update frequency of image data, between (i) a first mode in which a liquid crystal driver (7) is driven at a first driving frequency and (ii) a second mode in which the liquid crystal driver (7) is driven at a second driving frequency lower than the first driving frequency. The display device can therefore be used even in a case where a transmission path for image data is limited and optimally display high-resolution image data with reduced electric power consumption.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: November 21, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tetsuya Umekida, Kenji Maeda, Tatsuo Watanabe, Masayuki Natsumi, Yuichi Sato, Kazuya Takayama
  • Touch panel driving device, display device, mobile terminal, computer-readable recording medium having touch panel driver program recorded thereon, and touch panel driving method
    Patent number: 9823777
    Abstract: A touch panel driving device includes: a noise detection section (43) that detects the presence or absence of at least external noise of an input operation performed on a touch panel (30); and a liquid crystal drive parameter setting section (51) that, in a case where the presence of external noise has been detected by the noise detection section (43), executes a process for reducing the external noise by adjusting a cycle or duration of a 1H period.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: November 21, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazuya Takayama, Kenji Maeda, Masayuki Natsumi, Tatsuo Watanabe, Yuichi Sato, Tetsuya Umekida
  • DISPLAY DEVICE AND ELECTRONIC DEVICE
    Publication number: 20150310814
    Abstract: A display device disclosed includes a liquid crystal panel (6), and an image optimization circuit (4) for switching, in accordance with an update frequency of image data, between (i) a first mode in which a liquid crystal driver (7) is driven at a first driving frequency and (ii) a second mode in which the liquid crystal driver (7) is driven at a second driving frequency lower than the first driving frequency. The display device can therefore be used even in a case where a transmission path for image data is limited and optimally display high-resolution image data with reduced electric power consumption.
    Type: Application
    Filed: November 14, 2013
    Publication date: October 29, 2015
    Inventors: Tetsuya UMEKIDA, Kenji MAEDA, Tatsuo WATANABE, Masayuki NATSUMI, Yuichi SATO, Kazuya TAKAYAMA
  • TOUCH PANEL-TYPE INPUT DEVICE, METHOD FOR CONTROLLING THE SAME, AND STORAGE MEDIUM
    Publication number: 20150301647
    Abstract: An input device includes a touch panel including a touch sensor that detects an operation by an operator, and a display. The input device executes information processing based on information input on the touch sensor. The touch sensor is capable of changing a detection output to the information processing means, in accordance with a position of an object at a distance from the touch sensor. The input device also determines whether an operation on the touch sensor is performed with an operator's right hand or left hand, based on a distribution of the detection output from the touch sensor.
    Type: Application
    Filed: October 15, 2013
    Publication date: October 22, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yuichi SATO, Kenji MAEDA, Tatsuo WATANABE, Kazuya TAKAYAMA, Masayuki NATSUMI, Tetsuya UMEKIDA
  • TOUCH PANEL DRIVING DEVICE, DISPLAY DEVICE, MOBILE TERMINAL, COMPUTER-READABLE RECORDING MEDIUM HAVING TOUCH PANEL DRIVER PROGRAM RECORDED THEREON, AND TOUCH PANEL DRIVING METHOD
    Publication number: 20150185956
    Abstract: A touch panel driving device includes: a noise detection section (43) that detects the presence or absence of at least external noise of an input operation performed on a touch panel (30); and a liquid crystal drive parameter setting section (51) that, in a case where the presence of external noise has been detected by the noise detection section (43), executes a process for reducing the external noise by adjusting a cycle or duration of a 1H period.
    Type: Application
    Filed: August 12, 2013
    Publication date: July 2, 2015
    Inventors: Kazuya Takayama, Kenji Maeda, Masayuki Natsumi, Tatsuo Watanabe, Yuichi Sato, Tetsuya Umekida