Patents by Inventor Wataru Terui

Wataru Terui 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).

  • Wobble determining apparatus and method, optical disk device, and computer program
    Patent number: 8947989
    Abstract: A wobble determining apparatus is provided with: a calculating device for calculating (i) a first time required until reaching a number of revolutions of a motor which allows a predetermined linear velocity, and (ii) a second time required to move an optical head to a position which allows the predetermined linear velocity, on the basis of the number of revolutions of the motor and the position of the optical head; a judging device for judging whether to keep the optical head in accordance with the calculated first time and the calculated second time; and a controlling device for controlling a moving device not to move the optical head if it is judged to keep the optical head, and for controlling the moving device to move the optical head to the position which allows the predetermined linear velocity if it is judged not to keep the optical head.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: February 3, 2015
    Assignee: Pioneer Digital Design and Manufacturing Corporation
    Inventors: Takashi Tani, Yoshinori Kajiwara, Wataru Terui, Takahiro Otomo
  • WOBBLE DETERMINING APPARATUS AND METHOD, OPTICAL DISK DEVICE, AND COMPUTER PROGRAM
    Publication number: 20140223456
    Abstract: A wobble determining apparatus is provided with: a calculating device for calculating (i) a first time required until reaching a number of revolutions of a motor which allows a predetermined linear velocity, and (ii) a second time required to move an optical head to a position which allows the predetermined linear velocity, on the basis of the number of revolutions of the motor and the position of the optical head; a judging device for judging whether to keep the optical head in accordance with the calculated first time and the calculated second time; and a controlling device for controlling a moving device not to move the optical head if it is judged to keep the optical head, and for controlling the moving device to move the optical head to the position which allows the predetermined linear velocity if it is judged not to keep the optical head.
    Type: Application
    Filed: June 20, 2011
    Publication date: August 7, 2014
    Applicant: Pioneer Corporation
    Inventors: Takashi Tani, Yoshinori Kajiwara, Wataru Terui, Takahiro Otomo