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. 22, 2016
Filed:
Jan. 16, 2013
Panasonic Corporation, Osaka, JP;
Yoshifumi Hirose, Kyoto, JP;
Shoichi Araki, Osaka, JP;
Abstract
A haptic feedback device which provides haptic feedback to a user touching a panel, the haptic feedback device including: the panel; a position obtaining unit which obtains a first touch position touched on the panel by the user and a second touch position touched on the panel by the user after the first touch position; a speed calculation unit which calculates a speed of a touch starting at the first touch position and ending at the second touch position; a modulation signal generation unit which generates a modulation signal having a frequency component at a frequency that increases with the speed; a carrier signal generation unit which generates a carrier signal for vibrating the panel; a modulation unit which modulates the carrier signal using the modulation signal; and an actuator which provides haptic feedback to the user by vibrating the panel in accordance with the modulated carrier signal.