Random code for device identification

Details Random code for device identification Random code for device identification

2005-05-03

2005-05-03

Fan, Chieh M. (Department: 2634)

Pulse or digital communications

Transmitters

C375S219000, C375S316000

Reexamination Certificate

active

06888898

ABSTRACT:
A random identifier code is generated. The random identifier code is for allowing an electrical circuit to be communicatively associated with a particular external entity. The generated random identifier code is derived from signal data produced by the circuit. In the context of a wireless communication system, a transmitter and receiver can be associated with one another by such a random identifier code. Transmissions of the transmitter can be identified based on the random identifier code. No additional memory module needs to be installed during the manufacturing process for storing a predefined code. Once a random code identifier is generated, the associated circuit-external entity pair (e.g., transmitter-receiver pair) can continue to use that code indefinitely. However, a new code can be generated at any given time if so desired.

REFERENCES:
patent: 5189543 (1993-02-01), Lin et al.
patent: 5481265 (1996-01-01), Russell
patent: 5883582 (1999-03-01), Bowers et al.

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