Headphone unit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 27, 2018
Issued Date -
N/A
app pub date -
Apr 28, 2015
filing date -
Apr 28, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A headphone having a first and a second ear pad each having a housing, a peripherally extending ear cushion, and a first electroacoustic reproduction transducer that emits sound outwardly, which is arranged in or on the housing of the ear pad. At least one second reproduction transducer emits sound toward a user's ear. In a first operating position, the ear pads are placed with the ear cushion on or around an ear. In a second operating position, the ear cushions of the first and second ear pads bear against each other so that provided therebetween is a closed volume that serves as a resonance chamber for the two first electroacoustic reproduction transducers when the two electroacoustic reproduction transducers are activated in the second operating position.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- H04R Class
- 28.45 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 27, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 27, 2029 |
