Paging receiver with external memory means

Details Paging receiver with external memory means Paging receiver with external memory means

1989-09-15

1991-09-17

DeMeo, Palmer C.

Communications: electrical

Continuously variable indicating

With meter reading

34082526, 34082527, 3403111, H04B 700

Patent

active

050498746

ABSTRACT:
A paging receiver includes a receiver main body and a card-like ROM. The receiver main body includes a receiver circuit for receiving a paging signal, reception controllers for ON/OFF-containing the receiving circuit on the basis of reception control data, address comparators for checking whether a calling signal received in accordance with a reception control signal is assigned to the receiver, a CPU for fetching a message following the calling signal determined to be assigned to the receiver by the address comparators, a message memory for storing a received message, and a display for displaying the message stored in the message memory. The card-like ROM is detachably mounted in the receiver main body, stores at least a part of the reception control data, and supplies the reception control data stored therein to at least one of the reception controller and the address comparator while it is mounted in the receiver main body. The reception control data includes at least one of a frame number representing a frame to be received, an address for receiving a message, and remaining reception number data representing the number of times capable of receiving contract information.

REFERENCES:
patent: 4283796 (1981-08-01), Hughes
patent: 4438433 (1984-05-01), Smout et al.
patent: 4521776 (1985-06-01), Smoot et al.
patent: 4639225 (1987-01-01), Washizuka
patent: 4706272 (1987-11-01), Nishimura et al.
patent: 4742516 (1989-05-01), Yamaguchi
patent: 4818987 (1989-04-01), Ido et al.
patent: 4845491 (1989-06-01), Fascenda et al.
patent: 4879759 (1989-11-01), Matsumoto et al.

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