Pocket calculator for the forecasting of temporal cycles

Details Pocket calculator for the forecasting of temporal cycles Pocket calculator for the forecasting of temporal cycles

1980-04-09

1983-01-04

Krass, Errol A.

Boots, shoes, and leggings

364415, 364705, 364715, 365166, 128738, A61B 500, G06F 1502

Patent

active

043675271

DESCRIPTION:

BRIEF SUMMARY
We know how to realise miniature calculations capable of effecting relatively complex calculations.
Moreover, there are known methods allowing a woman to forecast, with a given margin, the times when sexual intercourse will probably be followed by a pregnancy. The Ogino method is such a method. The realisation of a miniature calculator specially for forecasting times according to one method or another presents no problem in principle. However, a serious problem is posed over the retention of basic data. Standard calculators, in fact, are designed in such a way that the user must supply data at the moment when he wishes to solve a problem, and must specify the nature of the calculations, the machine only having in its memory sequences of instructions corresponding to basic operations and some basic constants. The calculator is not usually designed to retain data. Now, if one wishes to make a forecast, it is essential to have at one's disposal dates of some previous periods. To make a forecast with a reasonable safety margin, account will be taken, for example, of an average relating to the last four periods.
These data are significant and they must be retained from month to month. For these data, a conventional memory circuit which is cleared when the supply is cut off evidently cannot be used.
In certain calculators, used is made of miniature magnetic cards. However, such a means does not here constitute absolute safety. In fact, the magnetic card may be mislaid and the data it contains may be erased or altered by the influence of a magnetic field coming into contact with the card.
The present invention refers to the supplying of a convenient and reliable solution to the problem of retaining some essential data, especially in the instance of a pocket calculator used for the forecasting of menstrual cycles.
The calculator according to the invention forms the object of claim 1, the other claims relating to special forms of execution.
The calculator according to the invention offers a convenient solution for those wishing to use a method of forecasting such as the Ogino method. The essential data are memorized in a special memory incorporated in the calculator and not in an external storage medium of the magnetic card type. Consequently there is no risk of mislaying it.
Furthermore, the memory thus incorporated in the calculator runs practically no risk of being directly in contact with a magnet which could disturb it, and the memory is thus far more reliable than a memory on magnetic card.
Finally, if a suitable type of electromechanical element is chosen, the electromechanical memory will show a good immunity to exterior influences such as impacts and variations in temperature and pressure. In particular, a preferrred type of electromechanical element is protected against an acceleration on the order of 10 g.
The calculator can be realised in such a way that its use is simplicity itself and requires from the user only a minimum of commonsense and care. Conversly, it can be connected to a relatively complex calculator and/or to a digital clock.
Sometimes, for psychological reasons, the person will need a forecasting programme different from a standard programme and according to the directions of a gynaecologist, for example. To this end, provision can be made for a particular embodiment in which the memory carrying the programme comprises a removable or reprogrammable part. For example, the memory unit of the calculator can consist of a ROM memory comprising the standard forecasting programme and replaceable by a different memory, programmed on the basis of the directions of the gynaecologist; or else, the memory unit comprises an EPROM memory, that is to say, erasable, in principle, by means of intense ultraviolet rays, and reprogrammable by means of an auxiliary apparatus which could be in the possession of the gynaecologist or the company distributing the calculator.
A calculator according to the invention can consequently be advantageously applied to the forecasting of the woman's menstrual cycles, espec

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