Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1980-08-14
1982-09-28
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
340539, 340572, G08B 1322
Patent
active
043520979
ABSTRACT:
An anti-theft system for the protection of a bag of papermoney or the like being transported from a bank safe to a waiting valuables transport vehicle, having a security apparatus for marking or otherwise making useless the papermoney or for giving an alarm in the case of attempted theft. At least one stationary transmitting unit is used for radiating radio waves along the path of transport for being received by a receiving unit on the money bag. The security apparatus is put into operation when the receiving unit no longer receives an agreed information pattern from the transmitting unit, which undergoes comparison with information regenerated at the same data rate from a shift register at the container.
In one form of the system, the information to be transmitted and to undergo comparison is produced by the transmitting end and stored sequentially in solid-state memories at a high data rate at the transmitting and receiving ends of the system before each transport operation. Then, on transport, synchronized readout of the information from the memories takes place at a lower data rate for comparison, the security apparatus being put into operation if the transmitted signal is no longer received, this being sensed because of the effect on the comparison operation.
In a further form of the system the memories are read only memories which may be exchanged for security purposes.
REFERENCES:
patent: Re27618 (1973-04-01), Robeson
patent: 3618067 (1971-11-01), DeVale et al.
patent: 4023138 (1977-05-01), Ballin
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