Patents by Inventor Sei Matsumoto

Sei Matsumoto 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 processing apparatus for decoding, converting in size and coding pieces of line data and transmitting the line data to a communication partner
    Patent number: 5475616
    Abstract: A data processing apparatus consists of an input buffer for storing one or more pieces of line data which each are formed of pieces of picture data and adding a specific code to each of the line data, a searching section for searching the input buffer for one or more specific codes, a search control section for (1) calculating a number Dx of pieces of picture data stored in the input buffer, (2) instructing the searching section to search the input buffer for one or more specific codes when the number Dx reaches a reference number, (3) repeatedly adding an incremental value to the reference number to increase the reference number in cases where no specific code is found out by the searching section, and (4) repeatedly instructing the searching section to search the input buffer for one or more specific codes when the number Dx reaches the reference number increased until at least one specific code is found out by the searching section, a data taking out section for taking out one or more pieces of line data s
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: December 12, 1995
    Assignee: Matsushita Graphic Communication Systems, Inc.
    Inventors: Zhi Jian Dai, Sei Matsumoto, Nobuhiko Noma, Osamu Noguchi, Sakae Miyamoto
  • Data transmitting apparatus and method for executing both facsimile communication and data communication without suspending a communication line
    Patent number: 5448378
    Abstract: A signal sending device (facsimile modem 66; step STA2) responds a call from a calling party and sends a first signal (CED signal) to the calling party. The first signal (CED signal) indicates that a non-voice terminal of the called party is connected to a communication line in response to the call from the calling party. A signal detecting device (facsimile modem 66; step STA3) detects a second signal (CNG signal) while the first signal (CED signal) is sent out from the signal sending device. The second signal (CNG signal) indicates that the calling party is a non-voice terminal. A mode switching device (CPU 61, data modem 65, I/O controller 67; step STA9) automatically changes communication mode from a facsimile mode to a data communication mode when the signal detecting device does not detect the second signal (CNG signal) while the first signal (CED signal) is sent out.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: September 5, 1995
    Assignee: Matsushita Graphic Communication Systems, Inc.
    Inventor: Sei Matsumoto