Patents by Inventor Tadoa Takashima

Tadoa Takashima 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).

  • Television receiver with a dual tuner system
    Patent number: 5285284
    Abstract: A television receiver having first and second tuners which can receive the same frequency band and display multiple-surfaces includes key inputting means for indicating that the display of a second tuner picture in a plurality of tuners is on or off and channel selection controlling means for making the second tuner an ordinary selected condition when the key inputting means indicates that the display of the second tuner picture is on and fixing the second tuner's local oscillation frequency so as to set a frequency received by the second tuner outside a receivable frequency band when the key inputting means indicates that the display of the second tuner picture is off. Thereby, mutual beat interference between the plurality of tuners is eliminated.
    Type: Grant
    Filed: November 9, 1992
    Date of Patent: February 8, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadoa Takashima, Takayuki Sudoh