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PCE
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CPC Subclass Not Allocatable
H03C

MODULATION (masers or lasers H01S; coding, decoding or code conversion H03M)

Description

H03C covers electronic circuits and devices for modulating signals, where information is encoded onto a carrier wave by varying one or more of its characteristics (amplitude, frequency, phase, or pulse properties). This subclass encompasses modulator designs, modulation techniques, and integrated circuit implementations across analog and digital domains, including amplitude modulation (AM), frequency modulation (FM), phase modulation (PM), and pulse modulation methods. Related demodulation circuits are classified separately under H03D, while specific modulation applications in telecommunications, broadcasting, and radar systems may be further detailed in their respective technology classes.

6 direct subcodes

Child Classifications

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  • H03C 99/00 Subject matter not provided for in other groups of this subclass