Speech recognition method, speech recognition apparatus, and non-transitory computer-readable recording medium storing a program
US-2017249936-A1 · Aug 31, 2017 · US
using ultrasonic, sonic or infrasonic waves
using ultrasonic, sonic or infrasonic waves · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01S3/80 |
| Official title | using ultrasonic, sonic or infrasonic waves |
| Display label | using ultrasonic, sonic or infrasonic waves |
| Total patents | 262 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 28 |
| 2017 | 24 |
| 2018 | 27 |
| 2019 | 31 |
| 2020 | 18 |
| 2021 | 33 |
| 2022 | 20 |
| 2023 | 25 |
| 2024 | 21 |
| 2025 | 18 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Voice processing method and device
US-2017243578-A1 · Aug 24, 2017 · US
Audio user interaction recognition and context refinement
US-9736604-B2 · Aug 15, 2017 · US
Acoustic camera based audio visual scene analysis
US-9736580-B2 · Aug 15, 2017 · US
System and method for listener controlled beamforming
US-9729994-B1 · Aug 8, 2017 · US
Acoustic processing device and acoustic processing method
US-9720068-B2 · Aug 1, 2017 · US
Method for Localizing a Marine Mammal in an Underwater Environment Implemented by a PAM System, Corresponding Device, Computer Program Product and Non-Transitory Computer-Readable Carrier Medium
US-2017212255-A1 · Jul 27, 2017 · US
Sonar system and method using arrays of optical ring resonator sensors
US-9702737-B2 · Jul 11, 2017 · US
Apparatus and method for monitoring stock information in a shopping space
US-2017193436-A1 · Jul 6, 2017 · US
Acoustic hostile fire indicator
US-9696405-B1 · Jul 4, 2017 · US
Active speaker location detection
US-9621795-B1 · Apr 11, 2017 · US
Method and apparatus for determining the direction of arrival of a sonic boom
US-9612310-B2 · Apr 4, 2017 · US
Speech-processing apparatus and speech-processing method
US-2017092287-A1 · Mar 30, 2017 · US
Speech-processing apparatus and speech-processing method
US-2017092298-A1 · Mar 30, 2017 · US
Estimation device and estimation method using sound image localization processing
US-9594148-B2 · Mar 14, 2017 · US
Detecting proximity of devices based on transmission of inaudible sound signatures in the speech band
US-9591148-B2 · Mar 7, 2017 · US
Identifying conference participants and active talkers at a video conference endpoint using user devices
US-9554091-B1 · Jan 24, 2017 · US
Playback Based on Number of Listeners
US-2016353224-A1 · Dec 1, 2016 · US
Systems and Methods for Sound Event Target Monitor Correlation
US-2016306024-A1 · Oct 20, 2016 · US
Detecting Proximity of Devices Based on Transmission of Inaudible Sound Signatures in the Speech Band
US-2016301810-A1 · Oct 13, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01S3/80?
- CPC G01S3/80 is the Cooperative Patent Classification code for “using ultrasonic, sonic or infrasonic waves.”
- How many patents are filed under CPC G01S3/80 (using ultrasonic, sonic or infrasonic waves)?
- Our database includes 262 publications tagged with this CPC code.
- Is patent activity under CPC G01S3/80 growing?
- Publication counts under this code: 21 in 2024 vs 18 in 2025 (latest complete years).