Methods and apparatus for outputting a haptic signal to a haptic transducer
AssigneeCirrus Logic, Inc.
InventorsAnthony S. Doy, Nermin Osmanovic, Carl L. Ståhl
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Abstract
Embodiments described herein relate to methods and apparatus for outputting a haptic signal to a haptic transducer. A method for triggering a haptic signal being output to a haptic transducer comprises receiving an audio signal for output through an audio output transducer; determining whether the audio signal comprises a haptic trigger based on an indication of a rate of change of an amplitude of the audio signal, and responsive to determining that the audio signal comprises a haptic trigger, triggering the haptic signal to be output to the haptic transducer.
Claims19
A method for outputting a first haptic signal to a haptic transducer in a device, comprising:
- receiving an audio signal for output through an audio output transducer;
- executing a first process to determine, based on the audio signal and at least one criteria, a haptic signal for outputting to the haptic transducer in synchrony with the audio signal for output through the audio output transducer;
- and
- simultaneous to execution of the first process, executing a second process to dynamically adjust the at least one criteria used by the first process based on a parameter for use in the first process, wherein the second process is separate to the first process, is slower than the first process and uses more processing power than the first process, wherein the parameter comprises one or more of the following:
- information relating to content of media playback for playback in conjunction with the audio signal, information relating to content of the audio signal, information relating to historical haptic events associated with the audio signal, and a battery charge status of the device.
A processor for outputting a first haptic signal to a haptic transducer in a device, comprising:
- an input configured to receive an audio signal for output through an audio output transducer;
- a haptic signal determination block configured to execute a first process to determine, based on the audio signal and at least one criteria provided by a second process, a haptic signal for outputting to the haptic transducer in synchrony with the audio signal for output through the audio output transducer, wherein the processor is configured to, simultaneous to execution of the first process, execute a second process to dynamically adjust the at least one criteria used by the first process based on a parameter for use in the first process, wherein the second process is separate to the first process, is slower than the first process and uses more processing power than the first process, wherein the parameter comprises one or more of the following:
- information relating to content of media playback for playback in conjunction with the audio signal, information relating to content of the audio signal, information relating to historical haptic events associated with the audio signal, and a battery charge status of the device, wherein the step of executing the second process does not affect a latency of the step of executing the first process.
Dependencies are inferred from the claim text.