Modem with improved handshaking capability

Details Modem with improved handshaking capability Modem with improved handshaking capability

H - Electricity

04

M

340/76

H04M 11/06 (2006.01)

Patent

CA 1273689

"MODEM WITH IMPROVED HANDSHAKING CAPABILITY" Abstract The preferred embodiment (11) of the modem comprises a control unit (13), a memory (27), a switch (14), and a modem engine (17). The modem engine (17) establishes communications with a modem (30) using conventional handshake methods. The control unit (13) then initiates a special handshake sequence composed of nonprintable, opposing characters to the modem (30) via the switch (14) and the modem engine (17). If the modem (30) completes the special handshake sequence then the control unit (13) and the modem (30) exchange the desired information. If the modem (30) does not complete the special handshake sequence then the preferred embodiment (11) functions as a conventional modem. The use of nonprinting, opposing characters for the special handshake sequence prevents the special handshake sequence from adversely affecting the external devices (10)(34).

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