Patents by Inventor Jem-Tsair Tsai

Jem-Tsair Tsai 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).

  • Multilevel light source device
    Patent number: 5798849
    Abstract: The present invention is related to a multilevel light source device. The multilevel light source device includes a light source for generating an initial light signal, and a web medium having a plurality of separate light-transmittable zones for receiving the initial light signal and generating a multilevel light signal in response to the initial light signal, wherein the multilevel light signal can be sent to a light-signal processing unit for further processing.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: August 25, 1998
    Assignee: Mustek Systems Inc.
    Inventor: Jem-Tsair Tsai