Earphone with inverse sound waves
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United States of America Patent
Stats
-
Apr 4, 2017
Grant Date -
Oct 27, 2016
app pub date -
Jul 10, 2015
filing date -
Apr 24, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The earphone with inverse sound waves includes an earphone housing, a high frequency driver, and a low frequency driver. The earphone housing includes an inner space, a sound output portion, and a reflecting portion. The reflecting portion receives a passive diaphragm. The high frequency driver produces high frequency sound waves and has a sound output direction toward the sound output opening. The low frequency driver is mounted in the inner space of the earphone housing by a mounting brace. The low frequency driver is located between the high frequency driver and the passive diaphragm. A sound transmitting portion is formed between the mounting brace and the earphone housing. The low frequency driver produces low frequency sound waves and has a sound output direction toward the passive diaphragm. The passive diaphragm reflects the low frequency sound waves to the sound output opening via the sound transmitting portion.
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