The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2025
Filed:
Jul. 24, 2023
Agc Inc., Tokyo, JP;
Jun Akiyama, Tokyo, JP;
AGC Inc., Tokyo, JP;
Abstract
A sound insulation device includes: a glass sheet composite including a plurality of glass plates being laminated, and partitioning an interior space and an exterior space; a vibration output unit vibrating the glass sheet composite according to an input signal; an exterior sound detection unit detecting a sound from a noise source or a vibration source and outputting a reference signal according to a detection result, the sound being correlated with a sound wave vibration induced in the glass sheet composite; an interior sound detection unit detecting a sound in the interior space and outputting an error signal according to a detection result; and a control unit including an adaptive filter that generates a cancel signal having a phase opposite to a phase of the reference signal to minimize the error signal, and outputting the cancel signal from the adaptive filter to the vibration output unit.