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. 06, 2015
Filed:
Jan. 16, 2013
Panasonic Corporation, 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 position touched on the panel by the user; a carrier signal generation unit which generates a carrier signal having a first frequency component when the position touched by the user is a first position, and generates a carrier signal having a second frequency component when the position touched by the user is a second position; an acoustic signal generation unit which generates an acoustic signal having harmonics corresponding to a predetermined fundamental frequency; a driving signal generation unit which generates a driving signal by adding together the carrier signal and the acoustic signal; and an actuator which provides haptic feedback to the user by vibrating the panel in accordance with the driving signal.