发明名称 HEADPHONES FOR REPRODUCING FOUR-CHANNEL SOUND
摘要 Each headphone casing encloses forwardly and rearwardly extending, segregated, acoustic mixing chambers segregated by a generally vertical partition and opening inwardly through a common, generally central opening to an ear of the person wearing the headphones. The headphone segregated mixing chambers preferably have specifically contoured walls with a sound emitting device in each mixing chamber directed at least partially against said walls for a proper sound mixing in each mixing chamber and the headphones central openings are of appropriate various sizes and depth for at least fully receiving the persons ear with acoustic integrating chambers of various sizes formed by the central openings adjacent the ears and simultaneously communicating with each of the segregated mixing chambers. Thus, with one channel of four-channel sound directed into each of the mixing chambers of a set of the earphones, the full effect of four-channel sound is received, and by similar connection of stereophonic sound, many of the four-channel sound effects are reproduced from the stereophonic sound.
申请公布号 US3794779(A) 申请公布日期 1974.02.26
申请号 USD3794779 申请日期 1971.08.23
申请人 SCHICK G,US;MORGAN V,US;MAHONEY T,US 发明人 GREUZERD C,US;HENKIN L,US
分类号 H04R1/10;H04R5/02;H04R5/033;(IPC1-7):H04M1/05 主分类号 H04R1/10
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