Method for transferring information using modems

Details Method for transferring information using modems Method for transferring information using modems

1992-12-14

1995-02-28

Dwyer, James L.

Multiplex communications

Wide area network

Packet switching

370 32, 375222, 379 93, 379406, H04B 138

Patent

active

053943929

ABSTRACT:
A modem's data reception rate is increased by decreasing the amplitude of the signals transmitted by the modem. Decreasing the amplitude of the transmitted signals reduces the amplitude of the resulting echoes, and thereby reduces the residual echoes that remain after echo cancellation. Reducing the residual echoes permits increasing the data reception rate. Decreasing the amplitude of the transmitted signals also involves decreasing the data transmission rate; however, asymmetrical data transfer rates are acceptable for many modem applications.

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Millicom, "Cellular Portable Telephone" sales brochure Nov. 21, 1984.

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