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Monitor system having list of items with fixed time slices for transmitting timing signals at the end of a communication between master processor and slave processors

  • US 5,287,520 A
  • Filed: 08/03/1989
  • Issued: 02/15/1994
  • Est. Priority Date: 08/06/1988
  • Status: Expired due to Fees
First Claim
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1. A method for exchanging data between a master processor and a multiplicity of slave processors of a configurable medical monitoring system, said master processor being able to transmit equidistant timing signals of different intervals to slave processors requiring different sampling periods, wherein each said slave processor has a corresponding communication format and controls an analog to digital conversion of a sampled parameter, said method comprising the steps of:

  • a) providing a list of items associated with fixed time slices;

    each item of said list specifying a set of communications with certain ones of said slave processors during a time slice and each successive item of said list being associated with successive time slices, andb) effecting communications between said master processor and slave processors in accordance with each successive item in said list until said list is exhausted, said effecting communications step including transmitting a control word from said master processor to said slave processors, said slave processors using said control word for initiating an analog to digital conversion cycle;

    wherein each communication between said master processor and a particular one of said slave processors is in a format that is specified in at least one item in said list and is identical to the format of other communications between the master processor and said particular slave processor; and

    wherein items of the list provided in step a) are generated by ranking the set of communications with certain ones of said slave processors such that communications with slave processors controlling the analog to digital conversion of a sampled parameter requiring shorter sampling periods are entered ahead of communications with slave processors controlling the analog to digital conversion of a sampled parameter requiring longer sampling periods.

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