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Apparatus for assessing the current state of fertility of a person

  • US 4,752,880 A
  • Filed: 02/13/1987
  • Issued: 06/21/1988
  • Est. Priority Date: 02/24/1983
  • Status: Expired due to Fees
First Claim
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1. Apparatus for indicating the present state of fertility of a person during her ovulation cycle, of the kind comprising an electric power supply (12), a thermal probe (1) for making temperature measurements and for generating analog signals corresponding to the temperature measurements, a calculator converter (4) for converting into electric digital signals, the analog signals generated by the probe (1) when put into contact with the body of the person, a fertility calculator (7) responsive to said calculator converter (4), for providing electric signals indicating the state of fertility of the person, and a time controller (20, 23) for authorizing and validating a given temperature measurement at a given time each day only if said given time is within a daily time window of fixed duration (e.g., of 4 hours), characterized in that said time controller comprises means (14-23) for assigning on each day a position in time of the time window in dependence upon the given time that the temperature measurement was authorized and validated on the previous day for thus automatically resetting the position of the time window in the event that the time of day of the temperature measurement changes from day to day within the window;

  • and further characterised in that the means for assigning, each day, the position in time of the time window are arranged for fixing the beginning of the time window of each day at 24 hours less a predetermined proportion of the duration of the time window following the given time of the previous day'"'"'s authorized and validated measurement.

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