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Inspiration oxygen saver

  • US 4,932,402 A
  • Filed: 10/16/1987
  • Issued: 06/12/1990
  • Est. Priority Date: 04/11/1986
  • Status: Expired due to Term
First Claim
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1. A pulse translation apparatus for translating a series of input signals occurring at variable time intervals into a series of corresponding output signals such that each of the output signals commences in predetermined time relationship to the occurrence of a corresponding input signal and represents a time duration correlated in predetermined manner with the time intervals corresponding to a predetermined plurality if preceding input signals, said apparatus comprising:

  • input means for receiving said input signals;

    output means for delivering said output signals;

    a plurality of timer means greater in number than said predetermined plurality of preceding input signals, and each operable for measuring a time interval between events characterizing the occurrence of the first and last signals of said predetermined plurality of preceding input signals, and for generating an output signal representative of a time duration correlated in predetermined manner with said time interval;

    means for sequentially coupling each of said timer means with said input means in response to a successive one of said input signals; and

    means for sequentially decoupling each of said timer means from said input means, and for sequentially coupling each of said timer means with said output means in response to the last signal of said predetermined plurality of input signals.

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