Digital data transmission system modem

Details Digital data transmission system modem Digital data transmission system modem

H - Electricity

04

M

379/5

H04M 11/06 (2006.01)

Patent

CA 1159173

DIGITAL DATA TRANSMISSION SYSTEM MODEM Abstract of the Disclosure A modem for transmission systems providing for simultaneous conventional baseband telephone signaling and digital data transmission on nonloaded telephone wires is disclosed. The modem includes a data transmitter that converts digital data to be transmitted from binary form into F1/F2 FSK form and a receiver that converts received digital data from F3/F4 FSK form into binary form. The modem is designed to be connected between a telephone transmission line and provide simultaneous conversion between binary form and FSK form.

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