Patents Examined by Stanley J. Witkowsi
  • Touch sensitive electrodes formed on the frame of an electronic wristwatch
    Patent number: 4048796
    Abstract: An upper metal frame or a bezel and a rear metal frame of an electronic wristwatch are electrically isolated from each other by interposing an insulating frame therebetween. The upper metal frame or the bezel is connected to one input terminal of a touch sensitive electronic switching circuitry disposed in the electronic wristwatch, whereas the rear metal frame is connected to another input terminal of the touch sensitive electronic switching circuitry.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: September 20, 1977
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takehiko Sasaki