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Collection of messages from data terminals using different protocols and formats

  • US 4,281,315 A
  • Filed: 08/27/1979
  • Issued: 07/28/1981
  • Est. Priority Date: 08/27/1979
  • Status: Expired due to Term
First Claim
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1. In a polling system wherein each of a plurality of terminals (102, 103) is sequentially selected to communicate with a common station (104) in response to selection signals, the station including means (201, 203) for determining the terminal to be selected and signaling and signal responsive means (206, 207, 106) for transmitting the selection signals to select the determined terminal and for communicating with the terminal thus selected,characterized in thatthe common station further includes memory means (202) for storing instructions defining a first and second communication procedure individually used for selecting different ones of the terminals, means (201) responsive to the determining means for accessing the memory means to obtain the instructions defining the procedure individual to the terminal to be selected, and means (201, 206, 207) responsive to the accessed instructions for controlling the signaling and signal responsive means to transmit the selection signals in accordance with the communication procedure defined thereby.

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