Meter interface unit for utility meter reading system

Details Meter interface unit for utility meter reading system Meter interface unit for utility meter reading system

1983-06-08

1985-09-10

Rubinson, Gene Z.

H04M 1100

Patent

active

045408491

ABSTRACT:
A meter interface unit for interconnecting utility meter reading apparatus to a telephone line to allow the automatic reading of utility usage at the telephone central office in response to an interrogation signal from the telephone central office. The meter interface unit converts meter reading signals to alternating signals for transmission to the telephone central office when a subscriber's telephone is on-hook. The unit also encodes a subscriber or customer identification signal which is transmitted with utility usage data to eliminate the need of any manual reading of the utility meter at the customer's premises. The meter interface unit is powered over the telephone line.

REFERENCES:
patent: 3742142 (1973-06-01), Martin
patent: 3842206 (1974-10-01), Barsellotti et al.
patent: 3868640 (1975-02-01), Binnie et al.
patent: 3899774 (1975-08-01), Binnie et al.
patent: 4004097 (1977-01-01), Spaulding
patent: 4059727 (1977-11-01), Kingswell et al.
patent: 4151371 (1979-04-01), Yoshihara et al.
patent: 4178480 (1979-12-01), Carbrey

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