Patents by Inventor Toraichi Sirakawa

Toraichi Sirakawa 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: 4652934
    Abstract: A facsimile transceiver equipped with a broadcasting feature wherein a transmission data is temporarily stored in a memory and thereafter the data is successively transmitted to a plurality of destinations. The facsimile transceiver includes a unit for expanding and reproducing once compressed and stored transmission data, a switch unit provided at the input side of a scanning resolution converter for selecting either the data from the expansion and reproduction unit or the transmission data from a scanner. In case broadcast is conducted using the facsimile transceiver, the expanded and reproduced transmission data is inputted to the scanning resolution converter to transmit it using the same method as of one-to-one communication. Thus, it is possible to use any type of a facsimile transceiver as a broadcasting reception terminal, and to broadcast to a broadcasting reception terminal in the same mode as of one-to-one communication.
    Type: Grant
    Filed: March 26, 1986
    Date of Patent: March 24, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Hideki Muroya, Toraichi Sirakawa