Importance

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Abstract

The oscillator integrated into a chip can generate an electrical clock signal with a reference signal, wherein the chip contains the following components: at least one laser transmitter, which can generate two coherent light signals with a differing optical transmission frequency, a coupler, in order to merge the two light signals, an electromagnetic converter, which can generate an electrical signal, whose frequency corresponds to the distance between the two transmission frequencies, a frequency divider, which can divide the frequency of the electrical signal in order to deliver a clock signal with a lower frequency. The oscillator can be inserted into a SIM card, for example, in order to make possible a non-falsifiable determination of the connection duration.

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First Claim