| 摘要 |
In accordance with the present invention, a communications system transmits a predetermined signal, from a first, sending, end of a communications system to a second, receiving, end of a communications system. The predetermined signal is distorted by the communication system and is received as a distorted signal that is compared to a known version of the originally transmitted signal. A comparison signal related to the difference between the originally transmitted signal (as represented by the known version of the originally transmitted signal) and the distorted predetermined signal as received at the receiving end is employed to adjust the transfer characteristic of a programmable converter to compensate for the distortion introduced by the communication system.
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