Dual microphone voice processing for headsets with variable microphone array orientation
US-2018330745-A1 · Nov 15, 2018 · US
Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04R2201/40 |
| Official title | Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups |
| Display label | Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups |
| Total patents | 288 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 17 |
| 2017 | 25 |
| 2018 | 20 |
| 2019 | 29 |
| 2020 | 26 |
| 2021 | 35 |
| 2022 | 42 |
| 2023 | 34 |
| 2024 | 25 |
| 2025 | 14 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Stochastic transmission/reception method and apparatus for mu-mimo scheme in mimo radio communication system
US-2018006704-A1 · Jan 4, 2018 · US
Portable speaker system
US-9843851-B2 · Dec 12, 2017 · US
Partner microphone unit and a hearing system comprising a partner microphone unit
US-9832576-B2 · Nov 28, 2017 · US
Listen and use voice recognition to find trends in words said to determine customer feedback
US-2017309273-A1 · Oct 26, 2017 · US
Controllable playback system offering hierarchical playback options
US-9794686-B2 · Oct 17, 2017 · US
Gaze based directional microphone
US-2017272627-A1 · Sep 21, 2017 · US
Modal based architecture for controlling the directivity of loudspeaker arrays
US-9762999-B1 · Sep 12, 2017 · US
Stochastic transmission/reception method and apparatus for MU-MIMO scheme in MIMO radio communication system
US-9762995-B2 · Sep 12, 2017 · US
Adaptive beamforming to create reference channels
US-9747920-B2 · Aug 29, 2017 · US
User Experience Oriented Audio Signal Processing
US-2017223456-A1 · Aug 3, 2017 · US
Portable eye tracking device
US-9710058-B2 · Jul 18, 2017 · US
Apparatus, Method and Computer Program for Rendering a Spatial Audio Output Signal
US-2017195793-A1 · Jul 6, 2017 · US
Loudspeaker arrangement in a car interior
US-2017188153-A1 · Jun 29, 2017 · US
Mobile terminal and method for the mobile terminal to switch between microphones during a call
US-2017180527-A1 · Jun 22, 2017 · US
Adaptive beamforming to create reference channels
US-2017178662-A1 · Jun 22, 2017 · US
FIR Filter Coefficient Calculation for Beam-forming Filters
US-2017164100-A1 · Jun 8, 2017 · US
Portable eye tracking device
US-9665172-B2 · May 30, 2017 · US
Beamforming array utiilizing ring radiator loudspeakers and digital signal processing (dsp) optimization of a beamforming array
US-2017085987-A1 · Mar 23, 2017 · US
Gaze based directional microphone
US-9596391-B2 · Mar 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04R2201/40?
- CPC H04R2201/40 is the Cooperative Patent Classification code for “Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups.”
- How many patents are filed under CPC H04R2201/40 (Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups)?
- Our database includes 288 publications tagged with this CPC code.
- Is patent activity under CPC H04R2201/40 growing?
- Publication counts under this code: 25 in 2024 vs 14 in 2025 (latest complete years).