Patent · US Active

Electronic device

US9253557B2 · kind B2 · utility

0Cited by

2References

12Claims

0Family size

Assignee

NEC CORPORATION · JP

Inventors

Yuichiro Kishinami · Yokohama, JP
Yasuharu Onishi · Yokohama, JP
Motoyoshi Komoda · Tokyo, JP
Nobuhiro Kawashima · Yokohama, JP
Yukio Murata · Yokohama, JP
Jun Kuroda · Tokyo, JP
Shigeo Satou · Yokohama, JP

Key dates

Filing date	Sep 9, 2011
Grant date	Feb 2, 2016
Priority date	—
Expiry date	Jul 9, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2499/11
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Disclosed is an electronic device including: a housing (110) in which at least one sound hole (113) and at least one sound hole (114) are formed; an oscillator (120) that is provided inside the housing (110) and outputs a modulated wave for a parametric loudspeaker; a sound demodulation unit (130) that is not provided in the sound hole (113) but provided in the sound hole (114) and demodulates the modulated wave; and a sound hole opening and closing unit (112) that is mounted to the housing (110) and opens and closes the sound hole (113).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.