Invention Grant
- Patent Title: Frequency-domain haptic waveform compensation for haptic transducers
-
Application No.: US16715261Application Date: 2019-12-16
-
Publication No.: US11641546B2Publication Date: 2023-05-02
- Inventor: Kok Chin Chang , Marco Janko , Kyle Wilkinson
- Applicant: Cirrus Logic International Semiconductor Ltd.
- Applicant Address: GB Edinburgh
- Assignee: Cirrus Logic International Semiconductor Ltd.
- Current Assignee: Cirrus Logic International Semiconductor Ltd.
- Current Assignee Address: GB Edinburgh
- Agency: Jackson Walker L.L.P.
- Main IPC: H04R3/04
- IPC: H04R3/04 ; G06F3/041 ; G06F3/01

Abstract:
A method for minimizing post-playback oscillation during playback of a haptic playback waveform to a haptic transducer may include determining whether a frequency response of the haptic playback waveform has a notch with a notch frequency at approximately a resonant frequency of the haptic transducer and, responsive to the notch frequency differing from the resonant frequency, modifying the haptic playback waveform for playback to the haptic transducer by shifting the notch frequency to approximately the resonant frequency.
Information query