Kabushiki kaisha toshiba (20240098408). NOISE REDUCTION SYSTEM AND NOISE REDUCTION METHOD simplified abstract

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NOISE REDUCTION SYSTEM AND NOISE REDUCTION METHOD

Organization Name

kabushiki kaisha toshiba

Inventor(s)

Tatsuhiko Goto of Kawasaki Kanagawa (JP)

Osamu Nishimura of Kawasaki Kanagawa (JP)

Akihiko Enamito of Kawasaki Kanagawa (JP)

NOISE REDUCTION SYSTEM AND NOISE REDUCTION METHOD - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240098408 titled 'NOISE REDUCTION SYSTEM AND NOISE REDUCTION METHOD

Simplified Explanation

The patent application describes a noise reduction system that includes a microphone, a loudspeaker, and processing circuitry. The system can switch between a control mode and a path characteristic measurement mode to reduce noise based on detected signals and measurements.

  • Microphone, loudspeaker, and processing circuitry are key components of the noise reduction system.
  • The system can switch between control mode and path characteristic measurement mode.
  • A control filter generates a control signal for the loudspeaker to output a control sound to reduce noise.
  • Path characteristic, including acoustic characteristics between the loudspeaker and microphone, is measured.
  • The control filter is generated using the measurement result of the path characteristic and a noise feature signal.

Potential Applications

The technology can be applied in:

  • Noise-canceling headphones
  • Hands-free communication devices
  • Audio recording equipment

Problems Solved

The technology helps in:

  • Improving audio quality in noisy environments
  • Enhancing communication clarity
  • Minimizing background noise interference

Benefits

The benefits of this technology include:

  • Enhanced user experience
  • Improved audio performance
  • Increased productivity in noisy environments

Potential Commercial Applications

The technology can be commercially applied in:

  • Consumer electronics
  • Telecommunication devices
  • Professional audio equipment

Possible Prior Art

One possible prior art is the use of noise-canceling headphones that utilize similar components and techniques to reduce ambient noise.

Unanswered Questions

How does the system adapt to different types of noise environments?

The patent application does not specify how the system adjusts its noise reduction techniques based on varying noise characteristics.

What is the power consumption of the noise reduction system?

The patent application does not provide information on the power requirements or consumption of the system.


Original Abstract Submitted

according to one embodiment, a noise reduction system includes a microphone, a loudspeaker, and processing circuitry. the processing circuitry switches an operating mode between a control mode and a path characteristic measurement mode, includes a control filter that generates a control signal that causes the loudspeaker to output a control sound for reducing noise, based on a detection signal obtained by detecting a first sound including the noise with the microphone, measures a path characteristic including an acoustic characteristic between the loudspeaker and the microphone, and generates the control filter by using a measurement result of the path characteristic and a noise feature signal including a feature of the noise.