System and headphone-like rear channel speaker and the...

Details System and headphone-like rear channel speaker and the... System and headphone-like rear channel speaker and the...

2006-05-23

2006-05-23

Grier, Laura A. (Department: 2644)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Stereo speaker arrangement

C381S074000, C381S017000, C381S300000

Reexamination Certificate

active

07050596

ABSTRACT:
A method of performing sound effect comprising providing a headphone-like or earphone-like device with rear speakers carried therein, wherein the headphone-like or earphone-like device includes an opening for receiving the front speaker signal. Then, the signal is transmitted to the front, rear and sub-woofer signal to associated speakers. The signal to the rear speakers is processed by HRTF and means for creating virtual speakers to obtain virtual speakers of the rear side. The processed signal is transmitted to the rear speaker.

REFERENCES:
patent: 6144747 (2000-11-01), Scofield et al.
patent: 6356644 (2002-03-01), Pollak
patent: 2003/0099369 (2003-05-01), Cheng
patent: 2003/0103837 (2003-06-01), Huang
patent: 2003/0108216 (2003-06-01), Cheng

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