Patents Assigned to Taiwan Regular Electronics
  • Touch-type pointing device with wireless input capability
    Patent number: 6515654
    Abstract: A touch-type pointing device with wireless input capability is disclosed, which includes a touch unit and a sensing pen. The touch unit has a transparent electrode and a control circuit connected to the transparent electrode for detecting a variance of impedance in the transparent electrode to obtain a signal representing a coordinate point, and transmitting and receiving signals. The sensing pen has a plurality of switches, each being closed to form a LC loop for transmitting signals in response to the signals from the touch unit.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: February 4, 2003
    Assignee: Taiwan Regular Electronics
    Inventor: Cheng-Yuan Liao