Missing radio page message detection

Details Missing radio page message detection Missing radio page message detection

1990-06-06

1992-10-27

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

371 32, 371 691, H04J 1500, H04Q 700

Patent

active

051593319

ABSTRACT:
A paging system transmits consecutively numbered page messages to receivers. Receivers detect missing page messages by interrogation of received page message numbers, and a missing page message is indicated by a gap in received page message numbers. However, page messages may be separated by long time intervals and a gap in received message numbers can not be detected until a subsequent page message is received. To more immediately detect a missing page message, a sequence message generated by the paging system provides a last transmitted page message number to receivers during otherwise unused portions of the transmission bandwidth. The receivers can thereby detect missing page messages without waiting until receiving a subsequent page message and without depleting the transmission bandwidth resource.

REFERENCES:
patent: 4439859 (1984-03-01), Donnan
patent: 4866707 (1989-09-01), Marshall et al.
patent: 4975952 (1990-12-01), Mabey et al.
patent: 4999834 (1991-03-01), Leo et al.

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