Telephonic communications – With check operated control – Coin signalling or control
Patent
1992-02-18
1995-04-25
Chin, Stephen
Telephonic communications
With check operated control
Coin signalling or control
379155, 379106, 379107, 455343, H04M 1700, H04M 1100, H04B 116
Patent
active
054105900
ABSTRACT:
Apparatus for auditing the usage and indicating the status of a remote coin telephone system to a central computer via a telephone line. The apparatus comprises a power conversion and supply section connected to the telephone line and which derives current from it. The power conversion and supply section has a capacitor for periodically storing and providing electric charge. A microcontroller is connected to the power conversion and supply section. The apparatus also comprises a data signal reception and transmission section, which is connected to the microcontroller and to the telephone line, and a circuit section which detects telephone line voltage, current and frequency signals connected to the telephone line, which are a function of the operation of the audited coin telephone system. Finally the apparatus has a program logic residing in the microcontroller, which receives data signals and waveforms pertaining to the operation of the audited coin telephone system and reports them to the central computer at predetermined time intervals. The program logic also periodically disrupts power usage by the apparatus.
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Blood Dennis C.
Ingalsbe Daryl E.
Tousignant Joseph T.
Walsh Joseph M.
Chin Stephen
Independent Technologies, Inc.
Loomis Paul
Skinner Joel D.
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