Binary-coded message communication

Details Binary-coded message communication Binary-coded message communication

1978-06-07

1980-04-01

Konick, Bernard

Multiplex communications

Wide area network

Packet switching

179 2A, 179 6E, H04L 700, H04M 1100

Patent

active

041963113

ABSTRACT:
Binary-coded message communication for accessing, over a telephone line, a unit such as a telephone-answering device. Communication takes place through the use of time-space-assigned bursts of two different audio frequencies. One frequency is used in a single burst to define the beginning of a message, and the other frequency is used in one or more bursts to define a selected binary-code--the code being determined in accordance with the time-locations of such burst(s).

REFERENCES:
patent: 3510777 (1970-05-01), Gordon
patent: 3842208 (1974-10-01), Paraskevakos
patent: 3927263 (1975-12-01), Fretwell

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