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Machine translation
1. (WO1981000661) REPRODUCTION OF SUPER LOW FREQUENCIES BY BASS WEIGHT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000661    International Application No.:    PCT/JP1979/000282
Publication Date: 05.03.1981 International Filing Date: 01.11.1979
IPC:
H04R 1/22 (2006.01), H04R 7/12 (2006.01)
Applicants:
Inventors:
Priority Data:
79/114824 20.08.1979 JP
Title (EN) REPRODUCTION OF SUPER LOW FREQUENCIES BY BASS WEIGHT
(FR) REPRODUCTION DE FREQUENCES SUPER BASSES PAR UN POIDS DE BASSE
Abstract: front page image
(EN)Technical field: Electro-acoustics. Realization of a speaker cone which may reproduce super low frequencies by the use of a usual cone speaker. Technical subject-matter: In conventional techniques, it costs much to reproduce super low frequencies. This invention gives a solution by the provision of thermoplastic adhesive to a simple speaker cone, thereby improving vibration mode thereof in the peripheral portion. Use of bass weight enables to reproduce super low frequencies by utilizing a felt ring. Application of the invention: The invention is available to any speaker unit thereby enabling reproduction of super low frequencies even by a small size speaker at the reduced cost. This speaker is particularly useful for stereo reproduction systems.
(FR)1. Domaine technique: electro-acoustique. Realisation d"un cone de haut-parleur qui peut reproduire des frequences super basses en utilisant un haut-parleur a cone conventionnel. 2. Sujet technique: dans les techniques conventionnelles les couts de reproduction de frequences super basses sont tres eleves. La solution au probleme consiste en un adhesif thermoplastique sur un cone de haut-parleur simple, ameliorant ainsi son mode de vibration dans la partie peripherique. L"utilisation d"un poids de basse permet de reproduire des frequences super basses en utilisant un anneau de feutre. 3. Application: a toute unite de haut-parleur, ce qui permet de reproduire des frequences super basses meme par un haut-parleur de petite dimension, avec un cout reduit. Ce haut-parleur est particulierement utile aux systemes de reproduction stereo.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)