Wake-up unit for waking up an electronic device and method of waking up an electronic device
First Claim
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1. An apparatus for waking up an electronic device, comprising:
- a wake-up unit, including;
a resonating unit configured and arranged to resonate, in response to acoustic excitation provided by a sonic wake-up signal, indicating a request to enable the electronic device, in at least one specific frequency,at least one first electrode,at least one piezoelectric material, andat least one second electrode,wherein the piezoelectric material is sandwiched between the at least one first electrode and the at least one second electrode, and is configured and arranged to provide an electrical current to the at least one first electrode and to the at least one second electrode in response to resonation of the resonating unit at the at least one specific frequency.
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Abstract
A wake-up unit for waking up an electronic device is provided. The wake-up unit comprises a resonating unit (C) for resonating at least one specific frequency, at least one first electrode (TE), at least one piezoelectric material (PM) and at least one second electrode (BE). The piezoelectric material (PM) is sandwiched between the at least one first and the at least one second electrode (TE, BE) such that an electronic current is provided to the at least one first and at least one second electrode (TE, BE) when the resonating unit (C) resonates at the at least one specific frequency.
21 Citations
15 Claims
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1. An apparatus for waking up an electronic device, comprising:
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a wake-up unit, including; a resonating unit configured and arranged to resonate, in response to acoustic excitation provided by a sonic wake-up signal, indicating a request to enable the electronic device, in at least one specific frequency, at least one first electrode, at least one piezoelectric material, and at least one second electrode, wherein the piezoelectric material is sandwiched between the at least one first electrode and the at least one second electrode, and is configured and arranged to provide an electrical current to the at least one first electrode and to the at least one second electrode in response to resonation of the resonating unit at the at least one specific frequency. - View Dependent Claims (2, 3, 4, 5, 9, 15)
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6. A method for waking up an electronic device having a wake-up unit which comprises a resonating unit, at least one first electrode, at least one piezoelectric material and at least one second electrode, wherein the piezoelectric material is sandwiched between the at least one first and at least one second electrode, comprising the steps of:
at the wake up unit; receiving a sonic wake-up signal, indicating a request to enable the electronic device, in at least one specific frequency, resonating the resonating unit at the at least one frequency in response to acoustic excitation provided in response to the sonic wake-up signal, and providing an electrical current to the at least one first and the at least one second electrode, in response to the resonating unit resonating at the at least one frequency. - View Dependent Claims (7, 8, 14)
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10. An apparatus comprising:
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a wake-up unit, configured and arranged to receive a sonic signal indicating a request to enable an electronic device, the wake-up unit including a resonating unit configured and arranged to resonate in at least one specific frequency in response to acoustic excitation provided by the sonic signal; and a piezoelectric unit including a top electrode, a bottom electrode and a piezoelectric material between the top and bottom electrodes, the piezoelectric unit being configured and arranged to generate current in response to resonation of the at least one resonating unit; and wherein the electronic device is coupled to the at least one wake-up unit and is configured and arranged to activate in response to the current generated by the at least one piezoelectric unit by switching from a stand-by mode to an active-mode. - View Dependent Claims (11, 12, 13)
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Specification