Loudspeaker apparatus

Details Loudspeaker apparatus Loudspeaker apparatus

2011-04-05

2011-04-05

Faulk, Devona E (Department: 2614)

Electrical audio signal processing systems and devices

Circuitry combined with specific type microphone or loudspeaker

C381S001000, C381S017000, C381S018000, C381S019000, C381S182000, C381S307000, C381S027000, C381S097000, C381S098000

Reexamination Certificate

active

07920710

ABSTRACT:
An array loudspeaker is constructed by stacking loudspeaker rows in a plurality of stages, each of the loudspeaker rows being formed by arranging loudspeaker elements in the form of a horizontal line. The loudspeaker rows are arranged in a zigzag form by, for example, offsetting the positions of the loudspeakers in the left and right direction for each stage. As for a high range signal, a two-stage portion of halves of the loudspeaker rows is used to narrow the pitch of the loudspeaker elements so as to prevent the grating lobe. As for a low range signal, the entire single-stage loudspeaker row is used to alleviate the deviation with respect to the directivity characteristics of the high range.

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