Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Kazuhiro Oshika

Satoshi Koura

Satoshi Takayama

Mitsukazu Kuze

Tomonori Shibuya

Kenji Yamauchi

Masatoshi Okuyama

Shoji Nakajima

Yachiyo Shimokawatoko

Koichi Nakayama

Hideaki Inoue

Hiroko Tsutsumi

A loudspeaker includes a diaphragm body having a dome shape protruding upwardly, a magnetic circuit disposed below the diaphragm body, a voice coil coupled to the diaphragm body, an edge coupled to an outer circumference of the diaphragm body, and a frame coupled to the edge. The edge includes a first coupling portion provided at an outer circumference of the edge, a second coupling portion provided at an inner circumference of the edge and coupled to an outer circumference of the diaphragm body, and a roll portion disposed between the first coupling portion and the second coupling portion. The edge has a surface facing downward. The frame has a connecting surface disposed below the second coupling portion and coupled to the surface of the edge at the first coupling portion of the edge. This loudspeaker can decrease distortion of sound.

Loudspeaker

A loudspeaker system includes an enclosure surrounding a plurality of loudspeakers. The plurality of loudspeakers are disposed in series along a straight line in the enclosure. The enclosure includes a front panel, a back panel and side panels. The front panel, the side panels, and the back panel are disposed parallel to the straight line on which the loudspeakers are arranged. The side panels are provided with a front slit and a back slit. The back slit is disposed at an opposite side of the front slit in the enclosure. Sounds emitted to the upper and lower sides of diaphragms of the loudspeakers are separated from each other such that the sounds are prevented from mixing with each other. This provides a loudspeaker system capable of achieving desired sound pressure-frequency characteristics.

Speaker system, electronic apparatus using same, and mobile body device

Growing community of inventors

Mie, Japan

Kazuhiro Oshika