Radio pager receiver capable of readily checking whether or not

Details Radio pager receiver capable of readily checking whether or not Radio pager receiver capable of readily checking whether or not

1988-02-29

1990-07-10

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

3403111, 455343, G08B 522

Patent

active

049409751

ABSTRACT:
In a radio page receiver comprising a memory (14) which is activated by main electric power and backed up by backup electric power, and which has a message area and an additional area for memorizing messages and administration data for administration of the messages, respectively, a message processor (20) is included in the receiver to judge whether or not the administration data are correctly kept in the additional area when the memory and the message processor are activated after the message processor is once deactivated. The message processor thereby produces a result signal representative of judgement. The message processor may process the message signals to have the administration data related to one another in accordance with a logical relationship. In this event, the message processor judges whether or not the logical relationship is correctly kept in the additional area. The logical relationship is checked by message linkage information indicative of a message order on processing the message signals. The logical relationship may also be checked by another linkage information related to a length of each message. The message processor may erase the messages and the administration data from the message area and the additional area when the result of judgement indicates that the administration data are not correctly kept in the additional area.

REFERENCES:
patent: 4079453 (1978-03-01), Dahl
patent: 4355390 (1982-10-01), Hellwig et al.
patent: 4369443 (1983-01-01), Giallanza et al.
patent: 4646307 (1987-02-01), Nishimura
patent: 4766434 (1988-08-01), Matai et al.
patent: 4779091 (1988-10-01), Oyagi et al.
Desautels et al., "Battery Backup Failure Detection", IBM Technical Disclosure Bulletin, vol. 26, No. 6, Nov. 1983.

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