Microphone arrays and communication systems for directional reception
US-9851938-B2 · Dec 26, 2017 · US
Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing
Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04R2201/405 |
| Official title | Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing |
| Display label | Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing |
| Total patents | 375 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 23 |
| 2017 | 31 |
| 2018 | 31 |
| 2019 | 46 |
| 2020 | 40 |
| 2021 | 41 |
| 2022 | 43 |
| 2023 | 51 |
| 2024 | 23 |
| 2025 | 25 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Speaker system which comprises speaker driver groups
US-2017366895-A1 · Dec 21, 2017 · US
Acoustic device
US-2017353796-A1 · Dec 7, 2017 · US
Directional audio capture
US-9838784-B2 · Dec 5, 2017 · US
Acoustic device
US-9838787-B1 · Dec 5, 2017 · US
Aerial acoustic sensing, acoustic sensing payload and aerial vehicle including the same
US-2017339487-A1 · Nov 23, 2017 · US
Acoustic wave image generating apparatus and control method thereof
US-2017319173-A1 · Nov 9, 2017 · US
Multi-microphone neural network for sound recognition
US-2017325023-A1 · Nov 9, 2017 · US
Microphone arrays and communication systems for directional reception
US-2017308352-A1 · Oct 26, 2017 · US
Microphone placement for sound source direction estimation
US-9788109-B2 · Oct 10, 2017 · US
Differential microphone with dual polarity bias
US-9762188-B2 · Sep 12, 2017 · US
Microphone mixing for wind noise reduction
US-2017251299-A1 · Aug 31, 2017 · US
Speaker module, electronic device including the speaker module, and display device including the electronic device
US-9749724-B2 · Aug 29, 2017 · US
Position directed acoustic array and beamforming methods
US-9747917-B2 · Aug 29, 2017 · US
Multi-orientation playback device microphones
US-9743204-B1 · Aug 22, 2017 · US
Arraying speakers for a uniform driver field
US-2017193977-A1 · Jul 6, 2017 · US
Reducing multiple sources of side interference with adaptive microphone arrays
US-2017164102-A1 · Jun 8, 2017 · US
Conference system with a microphone array system and a method of speech acquisition in a conference system
US-2017164101-A1 · Jun 8, 2017 · US
Speaker module, electronic device including the speaker module, and display device including the electronic device
US-2017150244-A1 · May 25, 2017 · US
Arraying speakers for a uniform driver field
US-9640169-B2 · May 2, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04R2201/405?
- CPC H04R2201/405 is the Cooperative Patent Classification code for “Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing.”
- How many patents are filed under CPC H04R2201/405 (Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing)?
- Our database includes 375 publications tagged with this CPC code.
- Is patent activity under CPC H04R2201/405 growing?
- Publication counts under this code: 23 in 2024 vs 25 in 2025 (latest complete years).