EP 4283609 A1 20231129 - AIR-PULSE GENERATING DEVICE
Title (en)
AIR-PULSE GENERATING DEVICE
Title (de)
LUFTPULSERZEUGUNGSVORRICHTUNG
Title (fr)
DISPOSITIF DE GÉNÉRATION D'IMPULSIONS D'AIR
Publication
Application
Priority
- US 202263346848 P 20220528
- US 202263347013 P 20220530
- US 202263353588 P 20220618
- US 202263353610 P 20220619
- US 202263354433 P 20220622
- US 202263428085 P 20221127
- US 202263433740 P 20221219
- US 202263434474 P 20221222
- US 202263435275 P 20221225
- US 202263436103 P 20221229
- US 202363447758 P 20230223
- US 202363447835 P 20230223
- US 202363459170 P 20230413
Abstract (en)
An air-pulse generating device includes a film structure. The film structure is driven by a modulation-driving signal, so as to form an amplitude-modulated ultrasonic air pressure variation with an ultrasonic carrier frequency. The film structure is driven by a first demodulation-driving signal and a second demodulation-driving signal, so as 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.
IPC 8 full level
G10K 15/04 (2006.01); G10K 11/02 (2006.01); H04R 1/30 (2006.01); H04R 19/02 (2006.01)
CPC (source: EP KR)
G10K 9/122 (2013.01 - KR); G10K 11/025 (2013.01 - EP); G10K 15/04 (2013.01 - EP); H04R 7/06 (2013.01 - KR); H04R 17/00 (2013.01 - KR); H04R 19/02 (2013.01 - EP KR); H04R 31/003 (2013.01 - KR); H04R 1/30 (2013.01 - EP); H04R 2201/003 (2013.01 - KR); H04R 2217/03 (2013.01 - EP KR); H04R 2231/001 (2013.01 - KR)
Citation (applicant)
- US 11057692 B1 20210706 - LIANG JEMM YUE [US]
- US 202117553806 A 20211217
- US 11172310 B2 20211109 - LIANG JEMM YUE [US], et al
- US 10425732 B1 20190924 - LIANG JEMM YUE [US], et al
- US 8861752 B2 20141014 - MARGALIT MORDEHAI [IL]
Citation (search report)
- [XPA] EP 4030782 A1 20220720 - XMEMS LABS INC [US]
- [X] US 2019141435 A1 20190509 - LO CHIUNG C [US], et al
- [X] US 2016381464 A1 20161229 - ELYADA ORI [IL]
- [A] US 2017230756 A1 20170810 - SCHELLING CHRISTOPH [DE], et al
- [X] US 2017201192 A1 20170713 - TUMPOLD DAVID [DE], et al
- [A] US 2013044904 A1 20130221 - MARGALIT MORDEHAI [IL]
- [A] US 2020100033 A1 20200326 - STOPPEL FABIAN [DE], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4283608 A1 20231129; EP 4283607 A1 20231129; EP 4283609 A1 20231129; EP 4283610 A1 20231129; JP 2023174647 A 20231208; KR 20230165895 A 20231205; TW 202348044 A 20231201
DOCDB simple family (application)
EP 23174735 A 20230523; EP 23174714 A 20230523; EP 23174750 A 20230523; EP 23174765 A 20230523; JP 2023086577 A 20230526; KR 20230068208 A 20230526; TW 112119231 A 20230524