Digital radio paging receiver

Details Digital radio paging receiver Digital radio paging receiver

1983-01-25

1986-01-07

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

3403111, 34082548, 179 2EC, 455 31, H04M 1102

Patent

active

045636800

ABSTRACT:
A multi-address radio paging receiver having a plug-in PROM which stores only one of the receiver's address codes, the remaining address codes of the receiver being generated by an exclusive OR operation on ROM stored codes and the one PROM stored code. The PROM stored address code and the exclusive OR generated address codes are compared to a received calling signal. If a match exists an alert signal, peculiar to the particular address code detected, is generated. The address codes are BCH codes. All address codes for a receiver can thus be altered by reprogramming the PROM to store a different signal address code.

REFERENCES:
patent: 4145685 (1979-03-01), Stodolski
patent: 4194153 (1980-03-01), Masaki et al.
patent: 4382256 (1983-05-01), Nagata
patent: 4438433 (1984-03-01), Smoot et al.

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