Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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H04L25/38
Synchronous or start-stop systems, e.g. for Baudot code
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H04L25/40
Transmitting circuits; Receiving circuits
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H04L25/49
using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels; ; Baseband coding techniques specific to data transmission systems
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H04L25/497
by correlative coding, e.g. partial response coding or echo modulation coding; transmitters and receivers for partial response systems
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H04L25/4975
Correlative coding using Tomlinson precoding, Harashima precoding, Trellis precoding or GPRS
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