Patents by Inventor Chih-Bin Hwang

Chih-Bin Hwang 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).

  • Data switch and data switching method for Bi-tronics printer
    Patent number: 5829894
    Abstract: The present invention discloses a data switch for a Bi-Tronics printer that keeps the Bi-Tronics printer in the use of data switch by adding a controller circuit which provides simulating responding signals to a disconnected computer. When the data switch is turned to different position, that is, the Bi-Tronics printer is in fact disconnected with the computer, a pseudo signal will be provided by the controller circuit to deceive the computer that the printer is still connected. Therefore, the driver of the Bi-Tronics printer in computer could not detect the abnormal condition of the Bi-Tronics printer, so that, the error massage will not appear on the screen and the data switch could still function properly between the computer and the Bi-Tronics printer without interrupting the user.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: November 3, 1998
    Assignee: Action Star Enterprise Co., Ltd.
    Inventor: Chih-Bin Hwang