Noise-cancelling headphone
AssigneeKabushiki Kaisha Audio-Technica
InventorTominori Kimura
Life of this patent
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Abstract
A noise-cancelling headphone includes a cancel signal generator that receives ambient noise via an electro-acoustic transducer and generates and outputs a cancel signal eliminating the noise and a speaker unit that outputs an audio signal and a cancel signal, and connects the cancel signal generator to a first terminal of two input terminals of the speaker unit and connects a sound source of an audio signal to a second terminal thereof, whereby obtaining the noise-cancelling headphone with which one can enjoy music with high quality without the change in the sound quality and volume between when a noise-cancelling function is activated and when deactivated.
Claims14
A noise-cancelling headphone comprising:
- an electro-acoustic transducer converting ambient noise into a noise signal;
- a cancel signal generator generating and outputting a cancel signal to eliminate the noise from the noise signal;
- and
- a speaker unit outputting an audio signal and the cancel signal, wherein
- the cancel signal generator is connected to a first terminal of two input terminals of the speaker unit and a sound source of the audio signal is connected to a second terminal.
Dependencies are inferred from the claim text.