20240015436. AUDIO DEVICE WITH ANC AND HEAR-THROUGH simplified abstract (GN Audio A/S)
Contents
AUDIO DEVICE WITH ANC AND HEAR-THROUGH
Organization Name
Inventor(s)
John Yoahann Daniel of Ballerup (DK)
AUDIO DEVICE WITH ANC AND HEAR-THROUGH - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240015436 titled 'AUDIO DEVICE WITH ANC AND HEAR-THROUGH
Simplified Explanation
The abstract describes an audio device that includes various components such as a receiver, feed-forward and feed-back microphones, filters, and mixers. These components work together to generate an audio output signal based on an input sound.
- The device has a receiver that receives an audio output signal and produces sound.
- It includes a feed-forward microphone that captures a first feed-forward input signal.
- A distributor is present to provide both a first and second feed-forward input signal.
- A feed-back microphone captures a feed-back input signal.
- A feed-forward filter generates a feed-forward output signal.
- An intermediate filter module incorporates a hear-through filter based on the second feed-forward input signal and produces an intermediate signal.
- A first mixer generates an error signal using the feed-back input signal and the intermediate signal.
- A feed-back filter processes the error signal.
- A second mixer combines the feed-forward output signal and the feed-back output signal to produce the audio output signal.
Potential applications of this technology:
- Noise cancellation in headphones or earphones.
- Enhancing sound quality in audio devices.
- Improving speech recognition systems.
- Noise reduction in communication devices.
Problems solved by this technology:
- Minimizing background noise for better audio experience.
- Enhancing the clarity of sound in noisy environments.
- Reducing interference and echo in communication systems.
Benefits of this technology:
- Improved audio quality and clarity.
- Enhanced user experience in noisy environments.
- Better communication and speech recognition accuracy.
- Reduction in background noise for improved focus and concentration.
Original Abstract Submitted
an audio device comprising an interface with a receiver with an output sound based on an audio output signal; a feed-forward microphone; a distributor for provision of a first feed-forward input signal and a second feed-forward input signal; a feed-back microphone; a feed-forward filter for provision of a feed-forward output signal; an intermediate filter module, wherein the intermediate filter module comprises a hear-through filter based on the second feed-forward input signal and wherein the intermediate filter module is configured to provide the intermediate signal based on the hear-through signal and the audio input signal; a first mixer for provision of an error signal based on the feed-back input signal and the intermediate signal; a feed-back filter signal based on the error signal; and a second mixer for provision of the audio output signal based on the feed-forward output signal and the feed-back output signal.
