NOISE-CANCELLING HEADPHONE
First Claim
1. 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, whereinthe 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.
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Accused Products
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.
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Citations
14 Claims
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1. A noise-cancelling headphone comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification