Receiver architecture demodulating 4n-qam directly in analog domain without analog-to-digital converter (adc)
US-2025168051-A1 · May 22, 2025 · US
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Homodyne or synchrodyne circuits {(receiver circuits H04B1/30)}
Homodyne or synchrodyne circuits {(receiver circuits H04B1/30)} · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03D1/22 |
| Official title | Homodyne or synchrodyne circuits {(receiver circuits H04B1/30)} |
| Display label | Homodyne or synchrodyne circuits {(receiver circuits H04B1/30)} |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fully differential demodulator with variable gain, and method for demodulating a signal
US-RE48086-E · Jul 7, 2020 · US
Demodulator circuit and method for demodulation
US-10623218-B2 · Apr 14, 2020 · US
Circuits for amplitude demodulation and related methods
US-10491437-B2 · Nov 26, 2019 · US
Systems and methods for synchronous demodulation
US-10469030-B2 · Nov 5, 2019 · US
Low power high gain radio frequency amplifier for sensor apparatus
US-10447318-B2 · Oct 15, 2019 · US
Signal receiving apparatus and signal receiving method, signal generating apparatus and signal generating method
US-10404292-B2 · Sep 3, 2019 · US
Signal receiving apparatus and signal receiving method, signal generating apparatus and signal generating method
US-2019207632-A1 · Jul 4, 2019 · US
Dynamic high-pass filter cut-off frequency adjustment
US-10340967-B2 · Jul 2, 2019 · US
Dynamic high-pass filter cut-off frequency adjustment
US-2019097664-A1 · Mar 28, 2019 · US
Demodulator circuit and method for demodulation
US-2018343152-A1 · Nov 29, 2018 · US
Low Power High Gain Radio Frequency Amplifier For Sensor Apparatus
US-2018227002-A1 · Aug 9, 2018 · US
Circuits for amplitude demodulation and related methods
US-2018198653-A1 · Jul 12, 2018 · US
Systems and methods for synchronous demodulation
US-2018159473-A1 · Jun 7, 2018 · US
Handling signals
US-9647868-B2 · May 9, 2017 · US
Demodulators for near field communication, near field communication devices, and electronic devices having the same
US-9515702-B2 · Dec 6, 2016 · US
Zero-power receiver
US-9460321-B1 · Oct 4, 2016 · US
Polar receiver architecture and signal processing methods
US-8929486-B2 · Jan 6, 2015 · US
Instrument LO used as alignment signal source
US-8929845-B2 · Jan 6, 2015 · US