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Facsimile communication method and apparatus for transmitting a predetermined portion of message data as a training check signal

  • US 4,727,429 A
  • Filed: 07/14/1986
  • Issued: 02/23/1988
  • Est. Priority Date: 09/17/1985
  • Status: Expired due to Fees
First Claim
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1. In a facsimile communication system having a transmitter and a receiver, a method for verification of training comprising the steps of:

  • forming, at said transmitter, a training check signal from a predetermined portion of message data to be transmitted;

    transmitting the training check signal to said receiver;

    verifying, at said receiver, successful training by receiving the training check signal and determining whether it is substantially the same as that transmitted;

    transmitting, to said transmitter, a confirmation signal representing that the transmission of the rest of the message data may commence if the training is successful; and

    transmitting, to said receiver, the rest of the message data upon reception of the configuration signal.

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