Patents - Global Data - Dimensions
Grant
Loudspeaker enclosure with closable port
Applicants
- Bang & Olufsen (Denmark)
[NORA names: Bang & Olufsen; Private Research; Denmark; Europe, EU; Nordic; OECD]
Abstract
The present invention relates to a loudspeaker device comprising a loudspeaker unit comprising a diaphragm having a first surface and a second surface (e.g. a front surface and a back surface of the diaphragm, respectively), the loudspeaker unit being mounted in a housing such that the first surface of the diaphragm is in acoustic communication with an ambient environment of the loudspeaker device. The device also includes an internal cavity formed in the housing and in acoustic communication with an ambient environment of the speaker device via the acoustic element. In this device, the second surface of the diaphragm is in acoustic communication with the internal cavity. According to the invention, the acoustic element is changeable between a state in which acoustic energy generated by the loudspeaker unit in the interior chamber is transmittable to the surroundings via the acoustic element and a state in which acoustic energy is substantially prevented from entering the surroundings via the acoustic element. The invention also relates to a method for improving the sound quality of a loudspeaker device, especially at low frequencies.
Patent Family Records (9)
Loudspeaker enclosure with closeable port
Bang & Olufsen (Denmark), Bang and Olufsen AS DYREBY JAKOB
2024, US-11943578-B2
LOUDSPEAKER ENCLOSURE WITH CLOSABLE PORT
Bang & Olufsen (Denmark), Bang and Olufsen AS DYREBY JAKOB
2022, EP-3334178-B1
LOUDSPEAKER ENCLOSURE WITH CLOSABLE PORT
BANG & OLUFSEN AS, Bang & Olufsen (Denmark) DYREBY JAKOB
2022, DK-3334178-T3
Loudspeaker enclosure with closable port
Bang & Olufsen (Denmark), Bang and Olufsen AS Jacob Diller than
2020, CN-110036651-B
Loudspeaker Enclosure with Closeable Port
Bang & Olufsen (Denmark), Bang and Olufsen AS DYREBY JAKOB
2019, US-20190320257-A1
Speaker housings with closable port
Bang & Olufsen (Denmark), Bang and Olufsen AS DYREBY JAKOB
2019, CN-110036651-A
LOUDSPEAKER ENCLOSURE WITH CLOSABLE PORT
BANG & OLUFSEN AS, Bang & Olufsen (Denmark) DYREBY JAKOB
2018, WO-2018103798-A3
LOUDSPEAKER ENCLOSURE WITH CLOSABLE PORT
BANG & OLUFSEN AS, Bang & Olufsen (Denmark) DYREBY JAKOB
2018, WO-2018103798-A2
LOUDSPEAKER ENCLOSURE WITH CLOSABLE PORT
Bang & Olufsen (Denmark), Bang and Olufsen AS DYREBY JAKOB
2018, EP-3334178-A1