H - Electricity – 04 – M
Patent
H - Electricity
04
M
354/233, 379/3
H04M 11/06 (2006.01) G06F 13/38 (2006.01)
Patent
CA 1271563
ABSTRACT OF THE DISCLOSURE An intelligent synchronous modem and data communication systems utilizing the intelligent synchronous modem are provided. The modem comprises: at least one connector having a first and a second port for primary and secondary channels of communication with a host computer, wherein the primary communication channel is for communication of synchronous data and the secondary communication channel is for communication of asynchronous data; a microprocessor for recognizing and executing commands of the host computer, wherein the commands are in the form of asynchronous data received over the secondary communication channel; and interface means for interfacing the microprocessor with telephone lines, wherein synchronous data received by the microprocessor is sent to the interface means. The data communication system of the invention comprises: a host computer including asynchronous and synchronous communication ports, wherein the host computer is arranged to send command mode data through the asynchronous port, and data mode data through the synchronous port; an intelligent synchronous modem as described above; at least one cable for connecting the synchronous port of the host computer with said synchronous port of the modem, and for connecting the asynchronous port of the host computer with the asynchronous port of the modem; and code/decode means for coding data
522784
Fargano Michael J.
Gorniak Andrew M.
General Datacomm Inc.
Osler Hoskin & Harcourt Llp
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