Method for cancelling TDD noise and stereo headphone employing the same

A method for canceling a TDD noise and a stereo headphone employing the same are disclosed. In accordance with the method and the stereo headphone, an audio signal is applied to speakers through a virtual ground single-ended structure and a voice call signal is applied to the speakers via a BTL stru...

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Bibliographic Details
Main Author LEE DUCK SOO
Format Patent
LanguageEnglish
Published 10.09.2009
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Summary:A method for canceling a TDD noise and a stereo headphone employing the same are disclosed. In accordance with the method and the stereo headphone, an audio signal is applied to speakers through a virtual ground single-ended structure and a voice call signal is applied to the speakers via a BTL structure by turning on and turning off a virtual ground terminal to cancel the TDD noise and eliminate a need for a DC blocking capacitor.
Bibliography:Application Number: US20080073395