Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1989-03-27
1992-12-22
Dwyer, James L.
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
379106, 379107, H04M 1100
Patent
active
051739356
ABSTRACT:
Teleprinting system, at a telephone user, comprising an apparatus containing a microprocessor corrected to a telephone line through a modem unit providing to distinguish data transmission messages from standard telephone messages using differences in the ring signal to send the received data to a printer, to a display, or through an interface circuit to an outer computer, and receiving messages from an optical reader or from a keyboard for their transmission through the modem unit to the corresponding apparatus of an agency or individual connected in order to embody the interaction, and is particularly applicable to telebilling or teleinvoicing methods from service agencies to an end user.
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Dwyer James L.
Industria Grafica Meschi S.r.l.
Woo Stella L.
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