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:
Oct. 18, 2022
Filed:
Jul. 03, 2019
Sony Corporation, Tokyo, JP;
Masaki Kamata, Tokyo, JP;
Naoki Shinmen, Tokyo, JP;
Michiaki Yoneda, Tokyo, JP;
Yoshiyuki Kuroda, Tokyo, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
A speaker drive unit includes a control signal generation unit and a signal processing unit. The control signal generation unit generates a control signal on the basis of detection signals generated by a plurality of detection units that is disposed in one-to-one correspondence with a plurality of actuators that vibrates a diaphragm, and detects vibration conditions. The signal processing unit includes a plurality of signal systems corresponding one-to-one to the plurality of actuators. The signal systems provide a drive signal to the corresponding actuators on the basis of the same audio signal. The drive signal generated by at least one signal system of the signal systems is controlled by the control signal.