Electrical audio signal processing systems and devices – Headphone circuits
Reexamination Certificate
2011-01-25
2011-01-25
Lee, Ping (Department: 2614)
Electrical audio signal processing systems and devices
Headphone circuits
C381S384000, C455S569100, C455S575300
Reexamination Certificate
active
07876912
ABSTRACT:
The invention provides a headset device. The headset device includes a first headset, a second headset, and a transmission line. The first headset includes a first housing; an interface module for receiving an audio signal; a signal processing module for separating the audio signal into a first channel signal and a second channel signal; an amplifying circuit for respectively amplifying the first channel signal and the second channel signal to generate a first amplified signal and a second amplified signal; and a first speaker for outputting audio according to the first amplified signal. The second headset includes a second housing, and a second speaker for outputting audio according to the second amplified signal. The transmission line is for transmitting the second amplified signal to the second headset.
REFERENCES:
patent: 5600719 (1997-02-01), Lovecky et al.
patent: 6233343 (2001-05-01), Muranami et al.
patent: 7418277 (2008-08-01), Tsai
patent: 2003/0073460 (2003-04-01), van Pelt et al.
patent: 2007/0287380 (2007-12-01), Hui et al.
Chang Kuo-Ching
Chen Chi-Hsiang
Fang Shih-Wei
Liao Jui-Chi
Liu Chun-Hsin
Lee Ping
Lite-On Technology Corp.
Rosenberg , Klein & Lee
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