Random sequence generator
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorSven Mattison
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Abstract
A device for generating a random sequence (10) of bits is disclosed. The device comprises oscillating means (13), which will generate a random sequence of bits when biased with a noise signal. The oscillating means comprises at least one oscillator amplifier being protected from interfering signals by means of a load and a tail-current source for providing high noise-interference ratio. Further, the present invention relates to an integrated circuit and an electronic apparatus comprising the device for generating a random sequence according to the invention.
Claims22
A device for generating a random sequence of bits, comprising:
- oscillating means having an input terminal for receiving a bias as input, the oscillating means comprising at least one oscillator amplifier;
- amplifying means comprising each the at least one oscillator amplifier and a corresponding at least one differential amplifier coupled to each the at least one oscillator amplifier;
- a load coupled to the amplifying means and a power supply;
- the load being adapted to protect the amplifying means from interfering signals;
- and
- a tail current source coupled to the amplifying means and grounding means.
Dependencies are inferred from the claim text.