CPC Subgroup Additional Only
H03D 2200/0041 Functional aspects of demodulators
Full Title
Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D > Functional aspects of demodulators
18 direct subcodes
Child Classifications
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- H03D 2200/0043 Bias and operating point
- H03D 2200/0045 Calibration of demodulators
- H03D 2200/0047 Offset of DC voltage or frequency
- H03D 2200/0049 Analog multiplication for detection
- H03D 2200/005 Analog to digital conversion
- H03D 2200/0052 Digital to analog conversion
- H03D 2200/0054 Digital filters
- H03D 2200/006 Signal sampling
- H03D 2200/0064 Detection of passages through null of a signal
- H03D 2200/0066 Mixing
- H03D 2200/008 Hilbert type transformation
- H03D 2200/0082 Quadrature arrangements
- H03D 2200/0084 Lowering the supply voltage and saving power
- H03D 2200/0086 Reduction or prevention of harmonic frequencies
- H03D 2200/0088 Reduction of intermodulation, nonlinearities, adjacent channel interference; intercept points of harmonics or intermodulation products
- H03D 2200/009 Reduction of local oscillator or RF leakage
- H03D 2200/0092 Detection or reduction of fading in multipath transmission arrangements
- H03D 2200/0094 Measures to address temperature induced variations of demodulation
Top Applicants
Top 10 applicants by patent filingsfor class H03, 2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 7,293
- QUALCOMM US 7,085
- MURATA MANUFACTURING COMPANY JP 5,982
- HUAWEI TECHNOLOGIES COMPANY CN 4,641
- INTEL CORPORATION US 3,863
- TEXAS INSTRUMENTS US 3,409
- MURATA MANUFACTURING COMPANY 2,874
- SK HYNIX KR 2,644
- SKYWORKS SOLUTIONS US 2,545
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,437