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System for accumulating data over nondedicated telephone lines

  • US 4,104,486 A
  • Filed: 06/29/1976
  • Issued: 08/01/1978
  • Est. Priority Date: 06/29/1976
  • Status: Expired due to Term
First Claim
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1. A telephone data accumulator system comprising:

  • at least one selectively operable telephone data transmitting device at a remote location, said device including a data accumulator that accumulates data pertaining to services used at the remote location and means for generating a predetermined telephone dialing signal, both connected across non-dedicated telephone lines in parallel therewith so as not to interfere with normal service to a telephone connected across said lines;

    line capture means connected across the telephone lines in parallel therewith at the remote location for seizing the telephone lines in preparation for placing a call;

    means at the remote location for selectively conditioning said line capture means and generating means respectively on a time-selected basis to seize the telephone lines and to generate said dialing signals and apply said dialing signals to the telephone lines to thereby initiate a call from the remote location to a central location over the non-dedicated telephone lines;

    a data utilization device at the central location;

    means at the central location for automatically answering the call initiated from the remote location and producing a connection between the remote location and the central location over the telephone lines;

    means at the remote location connected to the telephone lines for detecting a go-ahead signal on the telephone lines; and

    ,means responsive to said detected go-ahead signal for transferring data from the data accumulator at the remote location to the utilization device at the central location over the telephone lines connecting said remote location and said central location.

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