Patents by Inventor Insik Kang

Insik Kang 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).

  • Patent number: 4887358
    Abstract: An electronic compass (10) comprising a circular semi-transparent wheel (12) mounted for rotation in a horizontal plane and carrying a bar magnet (14) mounted radially with the magnets south pole oriented outwardly to cause the wheel to function as a compass. The wheel (12) is provided with a gray scale (16) located around the wheels periphery. One or more light-emitting diodes (LEDs) (18) are mounted below the wheel (12) and a photoresistor (20) is mounted above the wheel in position to receive the light from the LEDs (18) passing through the wheel. The photoresistor provides a signal, indicative of the intensity of the light received to a voltage comparator circuit (22). The circuit (22), in turn, passes signals to a suitable display means (24) to provide a directional indication related to the position of the bar magnet (14).
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: December 19, 1989
    Inventor: Insik Kang