Signal transmission

Details Signal transmission Signal transmission

1981-02-04

1984-04-10

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

34087011, 34087014, 34082514, 455 51, 455 67, 455115, 455 65, G08B 108, H04Q 700

Patent

active

044424264

ABSTRACT:
Plural transmitters, which transmit signals to a common receiver, transmit their signals in a fixed time-staggered pattern. As a result, the individual signals which are transmitted by the respective transmitters do not interfere with one another or influence one another. Between the fixed time-staggered signals, which are sent out, for example, as standard signals to facilitate routinelike monitoring, signals of a higher priority, for example alarm signals, can be transmitted without any time delay. This is particularly suited for use in connection with a personal security and monitoring system, in which the function monitoring of the unit and the wireless connection between several transmitters and a receiving center must constantly be monitored, and signals of a higher priority, namely alarm signals, are transmitted without delay.

REFERENCES:
patent: 3541552 (1970-11-01), Carlson
patent: 3593138 (1971-07-01), Dunn et al.
patent: 3786419 (1974-01-01), Nick
patent: 4013959 (1977-03-01), Patterson
patent: 4101872 (1978-07-01), Pappas

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