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:
Mar. 30, 2021
Filed:
Dec. 16, 2019
Fujitsu Limited, Kawasaki, JP;
Akinori Miyamoto, Sagamihara, JP;
Kiyoshi Taninaka, Ebina, JP;
Yuichi Kamata, Isehara, JP;
Sachihiro Youoku, Isehara, JP;
yasuhiro endo, Ebina, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A drive controller includes a pulse generator configured to generate a pulse width modulation signal by modifying a period of at least one cycle of a plurality of cycles of the pulse width modulation signal for synchronizing the plurality of cycles of the pulse width modulation signal with one cycle of a drive signal, and a drive circuit configured to generate the drive signal based on the pulse width modulation signal generated by the pulse generator, and drive a vibration element coupled to a panel of an electronic device on a basis of the generated drive signal for generating vibration in an ultrasonic band on the panel.