Patents by Inventor Kazuo Ueo

Kazuo Ueo 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).

  • Magnetic recording and reproducing apparatus detecting end of tape by counting motor signals per supply-reel revolution
    Patent number: 6257515
    Abstract: A magnetic recording and reproducing apparatus feeds magnetic tape from a supply reel to a take-up reel driven by a motor. Sensors generate signals responsive to each revolution of the supply reel and to the rotation of the motor. An end-of-tape detector counts the number of motor-sensor signals per revolution of the supply reel, and thereby detects the approaching end of the magnetic tape, so that the motor can be slowed before the end of the tape is reached. A detection threshold may be selected or computed in advance by using information provided by a third sensor, which generates a signal responsive to each revolution of the take-up reel.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: July 10, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazunori Fukuda, Kazuo Ueo