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US 12,133,050 B2Granted
Device for sensing a motion of a deflective surface
AssigneeInfineon Technologies AG
InventorDarragh Francis Corrigan
Life of this patent
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Abstract
A device for sensing a motion of a deflectable surface includes a deflectable element having a first side beam deflectable and includes a reflective surface at a second side of the deflectable element, proposing the first side. The device includes an optical emitter for emitting an optical signal towards the reflective surface and an optical receiver for receiving a reflected optical signal from the reflective surface and for providing a reception signal based on a reflective optical signal. The device includes a control unit in communication with the optical receiver for determining information related to the motion of the deflectable element based on the reception signal.
Claims20
A device for sensing a motion of a deflectable surface, the device comprising:
- a deflectable element, having a first side being deflectable and comprising a reflective surface at a second side of the deflectable element, opposing the first side, wherein the first side is an external surface of the device;
- an optical emitter configured for emitting an optical signal towards the reflective surface;
- an optical receiver configured for receiving a reflected optical signal from the reflective surface and for providing a reception signal based on the reflected optical signal, wherein the optical receiver comprises a plurality of receiving elements arranged for detecting a two-dimensional pattern of the reflected optical signal;
- and
- a control unit in communication with the optical receiver and configured for determining information related to the motion of the deflectable element based on the reception signal,
- wherein the optical emitter and the optical receiver are arranged on a top surface of the control unit, and wherein the optical emitter, the optical receiver, and the control unit are arranged inside a single package, wherein an upper surface of the single package comprises a diffracting structure that is unobstructed to the optical signal, and wherein the single package is affixed to the deflectable element by a plurality of spacers,
- wherein the reflective surface is part of an optical microphone including the optical emitter, the optical receiver, and an optical sound port including the deflectable element, wherein the optical microphone has no hole in the single package to function as an acoustical sound port of the optical microphone,
- wherein the deflectable element is integrated into a cover portion of the device forming the external surface.
5 more elements
A communication device comprising:
- a glass screen covering at least a portion of an external surface of the communication device, wherein the glass screen includes a deflectable element having a first side comprising a portion of the external surface and a second side opposite the first side comprising a reflective surface, wherein the deflectable element is enabled to mechanically deflect in response to being exposed to sound waves at the external surface;
- an optical emitter enabled to emit light towards the reflective surface, the reflective surface enabled to reflect reflected light in response to the light;
- an optical receiver configured for receiving the reflected light from the reflective surface and for providing a reception signal based on the reflected light, wherein the optical receiver comprises a plurality of receiving elements arranged for detecting a two-dimensional pattern of deflection caused by the sound waves;
- and
- a control unit in communication with the optical receiver and configured for continuously determining information related to motion of the deflectable element based on the reception signal,
- wherein the optical emitter and the optical receiver are arranged on a top surface of the control unit, and wherein the optical emitter, the optical receiver, and the control unit are arranged inside a single package, wherein an upper surface of the single package comprises diffracting structure that is unobstructed to the light, and wherein the single package is affixed to the deflectable element by a plurality of spacers,
- wherein the communication device is enabled for network communications.
4 more elements
A handheld device comprising:
- a glass screen covering at least a portion of an external surface of the handheld device, wherein the glass screen includes a deflectable element having a first side comprising a portion of the external surface and a second side opposite the first side comprising a reflective surface, wherein the deflectable element is enabled to mechanically deflect in response to being exposed to sound waves at the external surface;
- an optical emitter enabled to emit light towards the reflective surface, the reflective surface enabled to reflect reflected light in response to the light;
- an optical receiver configured for receiving the reflected light from the reflective surface and for providing a reception signal based on the reflected light, wherein the optical receiver comprises a plurality of receiving elements arranged for detecting a two-dimensional pattern of deflection caused by the sound waves;
- and
- a control unit in communication with the optical receiver and configured for continuously determining information related to motion of the deflectable element based on the reception signal,
- wherein the optical emitter and the optical receiver are arranged on a top surface of the control unit, and wherein the optical emitter, the optical receiver, and the control unit are arranged inside a single package, wherein an upper surface of the single package comprises an unobstructed diffracting structure, and wherein the single package is affixed to the deflectable element by a plurality of spacers,
- wherein the handheld device is configured for handheld operation by a human user.
4 more elements
Dependencies are inferred from the claim text.