Immersion Corporation

Arnab Sen

Stephen D Rank

Juan Manuel Cruz-Hernandez

Erin B Ramsay

Henry Da Costa

Elena Renee Redelsheimer

Christopher J Ullrich

Ali Modarres

Satvir Singh Bhatia

Juan Manuel Cruz-Herandez

A method of generating a haptic effect on a linear resonance actuator ('LRA') having a resonant frequency includes receiving a haptic effect signal for the haptic effect, where the haptic effect comprises a desired frequency that is off-resonant from the LRA. The method further includes generating a first sine wave at the desired frequency and generating a second sine wave at or near the resonant frequency. The method further includes combining the first sine wave and the second sine wave to generate a drive signal.

Haptic system with increased LRA bandwidth

A method for encoding haptic information inside a multi-media file having content includes changing a portion of the content in the multi-media file, and adding the haptic information to the changed portion of the content, the haptic information corresponding to a haptic signal for generating a haptic effect upon playback of the multi-media file. A method for decoding haptic information from inside a multi-media file having content includes locating the haptic information inside the multi-media file, and generating a haptic signal based on the located haptic information during playback of the content of the multi-media file. A method includes receiving a multi-media signal comprising an audio signal and a haptic signal with a receiver of a haptic device, and outputting a haptic effect with a haptic output device of the haptic device based on the haptic signal in the multi-media signal.

Method and apparatus for encoding and decoding haptic information in multi-media files

A system receives a multiplexed signal with two or more different types of haptic signals encoded therein. Each type of haptic signal represents a haptic effect for different types of haptic output devices. The system determines a target haptic output device located on a haptic playback device. The system demultiplexes the multiplexed signal into at least the type of haptic signal corresponding to the target output device. The system provides the demultiplexed haptic signal to the target haptic output device.

Multiplexing and demultiplexing haptic signals

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San Jose, CA, United States of America

Arnab Sen