Communications: electrical – Continuously variable indicating – With meter reading
Patent
1983-12-21
1986-12-16
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
34082554, 340941, 367297, H04Q 914, H04Q 700
Patent
active
046300449
ABSTRACT:
An automatic information transmission system for a mobile object, the system including a response unit arranged to be carried along with the mobile object, and an interrogation unit arranged to be disposed alongside the path of movement of the mobile object for movement of the response unit past the interrogation unit. The interrogation unit is arranged to emit a carrier signal at a first frequency and to receive a signal at a second frequency different from the first frequency. The response unit includes a memory for storing information relating to the mobile object, a signal generator connected to the memory for generating a signal at the second frequency and containing the stored information, a signal receiver for receiving the carrier signal at the first frequency emitted by the interrogation unit, an emitter connected to the signal generator for emitting the signal generated thereby, and an energy converter connected between the signal receiver and signal generator for deriving operating power for the generator from the carrier signal at the first frequency.
REFERENCES:
patent: 4333072 (1982-06-01), Beigel
patent: 4364043 (1982-12-01), Cole et al.
patent: 4388524 (1983-06-01), Walton
patent: 4459590 (1984-07-01), Saulnier
patent: 4550444 (1985-10-01), Uebel
"Keeping Current News and Trends", Automation, Jan. 1975, p. 12.
"Self-Powered Chip Identifies Railcars", Electronics International, Mar. 1982, p. 40, vol. 55.
Palatnick, "Automatic Vehicle Identification Systems-Methods of Approach", IEEE Transactions on Vehicular Technology, vol. VT 19, No. 1, Feb. 1970, pp. 128-136.
ANT Nachrichtentechnik GmbH
Yusko Donald J.
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