×

Data communication apparatus

  • US 4,974,097 A
  • Filed: 12/06/1989
  • Issued: 11/27/1990
  • Est. Priority Date: 11/18/1986
  • Status: Expired due to Term
First Claim
Patent Images

1. A data communication apparatus comprising:

  • a first communication line;

    a second communication line;

    first data communication control means for controlling non-voice data communication through said first communication line;

    second data communication control means for controlling non-voice data communication through said second communication line, said second data communication control means performing non-voice data communication in accordance with a communication procedure of a type different from that of said first data communication control means;

    input means for inputting data;

    output means for outputting data; and

    mode change control means for changing over said first and second data communication control means so as to connect said first or second data communication control means to said input and output means,wherein said first data communication control means and said second data communication control means can operate in parallel to perform said first non-voice data communication and said second non-voice data communication at the same time.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×