Techniques for howling detection
US-11638094-B2 · Apr 25, 2023 · US
Arrangements for preventing acoustic feed-back (H04M1/62 takes precedence)
Arrangements for preventing acoustic feed-back (H04M1/62 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04M1/20 |
| Official title | Arrangements for preventing acoustic feed-back (H04M1/62 takes precedence) |
| Display label | Arrangements for preventing acoustic feed-back (H04M1/62 takes precedence) |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 1 |
| 2019 | 6 |
| 2020 | 10 |
| 2021 | 5 |
| 2023 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Voice processing method, apparatus, electronic device, and storage medium
US-11587574-B2 · Feb 21, 2023 · US
Systems and methods for echo management in conferencing over a network using multiplexed multicast
US-11201968-B2 · Dec 14, 2021 · US
Voice processing method, apparatus, electronic device, and storage medium
US-2021375298-A1 · Dec 2, 2021 · US
Techniques for howling detection
US-2021219055-A1 · Jul 15, 2021 · US
Estimating averaged noise component in a microphone signal
US-10999418-B2 · May 4, 2021 · US
Systems and methods for echo management in conferencing over a network using multiplexed mixed multicast
US-10958791-B2 · Mar 23, 2021 · US
Echo delay tracking method and apparatus
US-10841432-B2 · Nov 17, 2020 · US
Systems and methods for echo management in conferencing over a network using multiplexed mixed multicast
US-2020336599-A1 · Oct 22, 2020 · US
Systems and methods for echo management in conferencing over a network using multiplexed multicast
US-2020336598-A1 · Oct 22, 2020 · US
Terminal, and operation method for terminal
US-10735869-B2 · Aug 4, 2020 · US
Techniques for howling detection
US-10681458-B2 · Jun 9, 2020 · US
Terminal, and operation method for terminal
US-2020120429-A1 · Apr 16, 2020 · US
Electronic device including a directional microphone
US-10623544-B1 · Apr 14, 2020 · US
Receiver module
US-10623545-B2 · Apr 14, 2020 · US
Methods and apparatus for configuring multiple microphones in an electronic communication device
US-10595129-B1 · Mar 17, 2020 · US
Receiver module
US-2020053193-A1 · Feb 13, 2020 · US
Techniques for howling detection
US-2019379972-A1 · Dec 12, 2019 · US
Mic covering detection in personal audio devices
US-10468048-B2 · Nov 5, 2019 · US
Estimating Averaged Noise Component in a Microphone Signal
US-2019327352-A1 · Oct 24, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04M1/20?
- CPC H04M1/20 is the Cooperative Patent Classification code for “Arrangements for preventing acoustic feed-back (H04M1/62 takes precedence).”
- How many patents are filed under CPC H04M1/20 (Arrangements for preventing acoustic feed-back (H04M1/62 takes precedence))?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC H04M1/20 growing?
- Publication counts under this code: 5 in 2021 vs 2 in 2023 (latest complete years).