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AssigneeCirrus Logic International Semiconductor Ltd.
InventorsHarsha RAO, Rong HU, Carl Lennart STÅHL, Jie SU, Vadim KONRADI, Teemu RAMO, Anthony Stephen DOY
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An integrated haptic system may include a digital signal processor and an amplifier communicatively coupled to the digital signal processor and integrated with the digital signal processor into the integrated haptic system. The digital signal processor may be configured to receive a force sensor signal indicative of a force applied to a force sensor and generate a haptic playback signal responsive to the force. The amplifier may be configured to amplify the haptic playback signal and drive a vibrational actuator communicatively coupled to the amplifier with the haptic playback signal as amplified by the amplifier.
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The integrated haptic system of claim 19, further comprising a memory communicatively coupled to the digital signal processor, and wherein the digital signal processor is further configured to:
The integrated haptic system of claim 19, wherein:
The integrated haptic system of claim 19, wherein:
The integrated haptic system of claim 19, wherein the digital signal processor generates the haptic playback signal to render haptic feedback for at least one of mechanical button replacement and capacitive sensor feedback.
The integrated haptic system of claim 19, wherein the digital signal processor controls the haptic playback signal in a closed feedback loop whereby the digital signal processor adapts its processing based on at least one of modeled parameters and measured parameters of the vibrational actuator.
The integrated haptic system of claim 19, wherein the digital signal processor is further configured to, responsive to a condition for changing a polarity of the haptic playback signal, change the polarity of the haptic playback signal.
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The integrated haptic system of claim 19, wherein the one or more diagnostic inputs are indicative of one or more of a current, a voltage, and an inductance of the vibrational actuator.
An integrated haptic system comprising:
An integrated haptic system comprising:
An integrated haptic system comprising:
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An integrated haptic system comprising:
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The method of claim 49, further comprising:
The method of claim 47, wherein:
The method of claim 47, wherein:
The method of claim 47, wherein the digital signal processor generates the haptic playback signal to render haptic feedback for at least one of mechanical button replacement and capacitive sensor feedback.
The method of claim 47, further comprising controlling, by the digital signal processor, the haptic playback signal in a closed feedback loop whereby the digital signal processor adapts its processing based on at least one of modeled parameters and measured parameters of a vibrational actuator.
The method of claim 47, further comprising changing, by the digital signal processor, a polarity of the haptic playback signal responsive to a condition for changing the polarity of the haptic playback signal.
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The method of claim 49, wherein the one or more diagnostic inputs are indicative of one or more of a current, a voltage, and an inductance of the vibrational actuator.
A method comprising:
A method comprising:
A method comprising:
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A method comprising:
The method of claim 58, wherein the one or more components comprise one or more of a detector, a data interface, a switch matrix, an input path amplifier, and an analog-to-digital converter.
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Dependencies are inferred from the claim text.