US 6,983,054 B2
Means for compensating rear sound effect
Eric Cheng, Taipei (Taiwan)
Assigned to C-Media Electronics Inc., Taipei (Taiwan)
Filed on Dec. 10, 2001, as Appl. No. 10/14,010.
Prior Publication US 2003/0108216 A1, Jun. 12, 2003
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 5/02 (2006.01); H04R 1/10 (2006.01); H04R 5/00 (2006.01)
U.S. Cl. 381—309 3 Claims
OG exemplary drawing
 
1. Means for compensating rear sound effect, comprising:
two main frames shaped to approximately match the structure of one's ears and opposite to each other, wherein said main frames are joined by wires;
rear speakers located on both said main frames; and
an input plug with a conductive wire connected to said main frames;
wherein said means for compensating rear sound effect is a separate headphone or a separate earphone from the front speakers and a sub-woofer speaker and allows said ears receiving the sound from front the speakers and the sub-woofer speaker, outside said means for compensating rear sound effect while said rear speakers provide the sound of rear side virtual speakers without losing rear bass.