Earphone with dual loudspeakers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 17, 2016
Grant Date -
Oct 22, 2015
app pub date -
Nov 11, 2014
filing date -
Apr 16, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An earphone with dual loudspeakers includes a casing, a retaining member, a tweeter, and a woofer. The casing has a first sound outlet passage and an accommodation space therein. The retaining member is installed in the accommodation space. Two ends of the retaining member are formed with a first accommodation cavity and a second accommodation cavity, respectively. The tweeter and the woofer are respectively installed in the first and second accommodation cavities and then installed in the casing. The tweeter has a sound outlet side facing the first sound outlet passage. A second sound outlet passage is formed between the outer wall of the tweeter and the inner wall of the first accommodation cavity. The second sound outlet passage communicates with the first sound outlet passage. The woofer has a sound outlet side facing the second sound outlet passage.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- H04R Class
- 15.56 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 17, 2027 |
