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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H04L27/18
Phase-modulated carrier systems, i.e. using phase-shift keying
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H04L27/20
Modulator circuits; Transmitter circuits
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H04L27/2032
for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
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H04L27/2035
using a single or unspecified number of carriers
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H04L27/2042
with more than two phase states
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H04L27/205
in which the data are represented by the change in phase of the carrier
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