Air-pulse generating device producing asymmetric air pulses
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Mar 25, 2025
Grant Date -
Sep 14, 2023
app pub date -
May 22, 2023
filing date -
May 22, 2023
priority date (Note) -
In Force
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
An air-pulse generating device includes a film structure. The film structure is driven to form an amplitude-modulated ultrasonic air pressure variation with an ultrasonic carrier frequency. The film structure is driven to form an opening at a rate synchronous with the ultrasonic carrier frequency. The air-pulse generating device produces a plurality of air pulses according to the amplitude-modulated ultrasonic air pressure variation, and the plurality of air pulses is asymmetric.
First Claim
Other Claims data not available
Family
Loading Family data...
International Classification(s)
- 2023 Application Filing Year
- H04R Class
- 2602 Applications Filed
- 690 Patents Issued To-Date
- 26.52 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H04R Class
- 0 % this patent is cited more than
- < 1 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Sep 25, 2028 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 25, 2032 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 25, 2036 |