18057106. IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME simplified abstract (CANON KABUSHIKI KAISHA)
IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME
Organization Name
Inventor(s)
Yoshinori Shindo of Kanagawa (JP)
IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 18057106 titled 'IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME
Simplified Explanation
The imaging apparatus described in this patent application includes an external-audio microphone that captures sounds occurring outside the apparatus. It also includes a noise reference microphone that captures the drive noise produced by the imaging apparatus or any external device connected to it.
The apparatus has a detection unit that identifies periods of noise, during which the drive noise occurs. It also has an updating unit that uses the audio signal obtained by the noise reference microphone during a no-noise period (when no noise is present) to update the background noise.
A generation unit then combines the audio signal of the drive noise obtained from the noise reference microphone with the updated background noise to generate an audio signal specifically for the drive noise. Finally, a noise reduction unit reduces the audio signal of the drive noise from the audio signal captured by the external-audio microphone during the noise period.
- The imaging apparatus captures external sounds and drive noise.
- It detects periods of noise and no-noise periods.
- It updates the background noise based on the audio signal obtained during no-noise periods.
- It generates an audio signal specifically for the drive noise.
- It reduces the drive noise from the audio signal captured by the external-audio microphone.
Potential Applications
- This technology can be applied in various imaging devices such as cameras, smartphones, or surveillance systems to improve audio quality by reducing drive noise.
- It can be used in video recording applications to enhance the clarity of recorded audio by minimizing unwanted drive noise.
Problems Solved
- Drive noise produced by imaging devices or external devices connected to them can often interfere with the quality of captured audio.
- This technology solves the problem of drive noise by detecting and reducing it, resulting in improved audio quality.
Benefits
- Improved audio quality in imaging devices by reducing drive noise.
- Enhanced clarity of recorded audio in video recording applications.
- Better user experience with improved audio in various imaging devices.
Original Abstract Submitted
An imaging apparatus includes an external-audio microphone that collects an external sound that occurs outside the imaging apparatus, a noise reference microphone that obtains drive noise of the imaging apparatus or an external apparatus connected to the imaging apparatus, a detection unit that detects a noise period during which the drive noise occurs, an updating unit that updates background noise based on an audio signal obtained by the noise reference microphone during a no-noise period determined by the detection unit as a period in which no noise occurs, a generation unit that generates an audio signal of the drive noise from the audio signal obtained by the noise reference microphone and the updated background noise, and a noise reduction unit that reduces the audio signal of the drive noise generated by the generation unit from the audio signal obtained by the external-audio microphone during the noise period.
