Apparatus enabling the identification of a periodic composite si

Details Apparatus enabling the identification of a periodic composite si Apparatus enabling the identification of a periodic composite si

1985-03-25

1988-03-01

Harkcom, Gary V.

Communications: electrical

Digital comparator systems

364443, H03M 1310, G01C 2100

Patent

active

047289260

ABSTRACT:
Apparatus enables the identification of a periodic composite signal made up of a train of elementary signals and produced, for example by a marine light. At each elementary signal of the composite signal, the operator operates a switch feeding into the apparatus pulses which are treated by a microprocessor; the trains of these pulses are stored in a live memory, compared to each other in such a way that there is retained only that train which is the most representative, this most representative train being compared with information contained in dead memories constituting a reference table. That one of the sets of information contained in the memories which appears as being identical to the train of pulses recognized as being representative is then displayed as an indication directly usable to enable the operator to know the identity of the emitter and, may be, the main characteristics of this emitter such as its name, its position, or other characteristics.

REFERENCES:
patent: 3806922 (1974-04-01), Isbister
patent: 3855576 (1974-12-01), Braun et al.
patent: 3870992 (1975-03-01), Hanna, Jr.
patent: 4104629 (1978-08-01), Isbister et al.
patent: 4318105 (1982-03-01), Brodeur
patent: 4339751 (1982-07-01), Pease
patent: 4354252 (1982-10-01), Lamb et al.
patent: 4611209 (1986-09-01), Lemelson et al.
patent: 4630208 (1986-12-01), Le Pechon

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