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:
Jun. 23, 2020
Filed:
Mar. 27, 2019
Nidec Seimitsu Corporation, Ueda-shi, Nagano-ken, JP;
Naoki Kanai, Ueda, JP;
NIDEC SEIMITSU CORPORATION, Nagano, JP;
Abstract
A haptic output device includes an actuator that provides a haptic effect and a signal transmitter that transmits a driving signal and a braking signal to the actuator. The driving signal includes a first driving waveform in a first half cycle, a second driving waveform, following the first driving waveform, in a second half cycle, and a third driving waveform, following the second driving waveform, in a third half cycle. The braking signal includes a braking waveform following the third driving waveform. The polarities of the voltage values of the first driving waveform and second driving waveform are opposite to each other. The polarities of the voltage values of the second driving waveform and third driving waveform are opposite to each other. The braking waveform has a phase opposite to the phase of the driving signal. The third driving waveform has a higher frequency than the first driving waveform.