WO2025003971 - SPEAKER SYSTEM FOR A HELMET

National phase entry:
Publication Number WO/2025/003971
Publication Date 02.01.2025
International Application No. PCT/IB2024/056301
International Filing Date 27.06.2024
Title **
[English] SPEAKER SYSTEM FOR A HELMET
[French] SYSTÈME DE HAUT-PARLEUR POUR CASQUE
Applicants **
CARDO SYSTEMS, LTD.
Inventors
PFAFFINGER, Gerhard Rudolf
CHRISTOPH, Markus Ewald
Priority Data
63/523,538   27.06.2023   US
Application details
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译文

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Quotation for National Phase entry

Country StagesTotal
China Filing, Examination, Granting2442
EPO Filing, Examination, Granting15230
Japan Filing, Examination, Granting2596
South Korea Filing, Examination, Granting3040
USA Filing, Examination, Granting6740
MasterCard Visa
Total: 30,048

The term for entry into the National Phase has expired. This quotation is for informational purposes only

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Abstract[English] A helmet speaker system includes a helmet shell (102) with a helmet impact liner (104) inside the helmet shell. A hole (110) is formed in the helmet impact liner (104), the hole penetrating through the helmet impact liner (104). A speaker (130) is fixed in the hole (110). A space (108) formed between the helmet impact liner (104) and the interior sidewall of the helmet shell (102) is directly acoustically connected to a rear portion of the speaker (130) fixed in the hole (110). The speaker is configured to use the space to produce improved sound, particularly with respect to low frequency sound.[French] La présente invention concerne un système de haut-parleur pour casque comprenant une coque de casque (102) avec une doublure d'amortissement de casque (104) à l'intérieur de la coque de casque. Un trou (110) est formé dans la doublure d'amortissement de casque (104), le trou traversant la doublure d'amortissement de casque (104). Un haut-parleur (130) est fixé dans le trou (110). Un espace (108) formé entre la doublure d'amortissement de casque (104) et la paroi latérale intérieure de la coque de casque (102) est directement relié acoustiquement à une partie arrière du haut-parleur (130) fixée dans le trou (110). Le haut-parleur est conçu pour utiliser l'espace pour produire un son amélioré, en particulier en ce qui concerne les basses fréquences.