EP 4411727 A1 20240807 - A SYSTEM AND A METHOD FOR ACOUSTIC NOISE CONTROL
Title (en)
A SYSTEM AND A METHOD FOR ACOUSTIC NOISE CONTROL
Title (de)
SYSTEM UND VERFAHREN ZUR AKUSTISCHEN RAUSCHSTEUERUNG
Title (fr)
SYSTÈME ET PROCÉDÉ DE RÉGULATION DE BRUIT ACOUSTIQUE
Publication
Application
Priority
EP 23154360 A 20230131
Abstract (en)
The present invention belongs to the field of acoustics, more particularly to devices and methods for minimizing noise of various devices. The invention relates to a system and a method for acoustic noise control of various noise generating devices, such as heat pumps, AC systems, compressor systems, ventilation, and other HVAC systems, as well as motors, engines and similar. The essence of the invention is positioning and orientation of the source of cancellation sound, i.e., the secondary noise source, which is installed at, next to, or in the vicinity of the noise source to be cancelled, i.e., the primary noise source, and most importantly in the same compartment as the primary noise source. The same compartment means that there are no obstacles (physical barriers) between the source of cancellation sound and primary noise source.
IPC 8 full level
G10K 11/178 (2006.01)
CPC (source: EP)
G10K 11/17857 (2018.01); G10K 11/17881 (2018.01); G10K 2210/106 (2013.01); G10K 2210/3216 (2013.01)
Citation (applicant)
- US 2011274283 A1 20111110 - ATHANAS LEWIS [US]
- EP 3240974 A2 20171108 - ROTEX HEATING SYSTEMS GMBH [DE]
- US 2018163989 A1 20180614 - MEHTA PAVAK [US], et al
- DE 102019202077 A1 20200820 - BOSCH GMBH ROBERT [DE]
- US 2007003071 A1 20070104 - SLAPAK ALON [IL], et al
Citation (search report)
- [XYI] WO 9409484 A1 19940428 - NOISE CANCELLATION TECH [US], et al
- [Y] EP 0847576 B1 20000621 - UNITED TECHNOLOGIES CORP [US]
- [Y] EP 4068275 A1 20221005 - SILENCER DEVICES LLC [US]
- [Y] EP 3240974 B1 20190417 - ROTEX HEATING SYSTEMS GMBH [DE]
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)
DOCDB simple family (application)
EP 23154360 A 20230131