Patents by Inventor Satoru Konakai

Satoru Konakai 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).

  • Video interface system sending image data together with clock signal received from image forming apparatus
    Patent number: 5430554
    Abstract: A video interface system can cope with a plurality of printers having different clock signal frequencies with reduced timing skew between image data and a clock signal. The video interface system interfaces an image data supplying apparatus, such as a host computer, with a printer. The video interface system comprises a reference clock signal sending unit, provided in the image data supplying apparatus, for sending back a reference clock signal supplied by the printer by means of a loop back control. A shift register is provided in the image data supplying apparatus, and sends image data to the printer in synchronization with the reference clock signal supplied by the printer.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: July 4, 1995
    Assignee: Ricoh Company, Ltd.
    Inventor: Satoru Konakai