Method for detecting an operating input, and operating device
AssigneeMercedes-Benz Group AG
InventorsVolker Stahl, Jörg Reisinger
Life of this patent
Estimating the term…
Abstract
A method for detecting an operating input performed by a finger involves detecting various contact points of a contour of the finger using a sensor system on a sensor surface. The sensor system includes at least one transmitting unit for transmitting a signal to the finger and at least one receiving unit for receiving a signal reflected by the finger. A surface vibration is introduced into the sensor surface by at least one actuator, the surface vibration changes the frictional resistance between the finger and the sensor surface as a function of the changing contact points of the contour of the finger.
Claims12
A method, comprising:
- detecting an operating input performed by at least one finger by detecting various contact points of a contour of the at least one finger using a sensor system on a sensor surface, wherein the sensor system includes at least one transmitting unit configured to transmit a signal to the at least one finger and at least one receiving unit configured to receive a signal reflected by the at least one finger;
- and
- introducing, by at least one actuator, a surface vibration into the sensor surface to change a frictional resistance between the at least one finger and the sensor surface as a function of changing contact points of the contour of the at least one finger,
- wherein the surface vibration is temporally changed in such a way that a sequence of larger and smaller vibration amplitudes or frequencies is obtained in an area below the contact points of the at least one finger on the sensor surface.
An operating device, comprising:
- a sensor system configured to detect various contact points of a contour of a finger on a sensor surface, the sensor surface comprising a transmitting unit configured to transmit a signal to the finger and at least one receiving unit configured to receive a signal reflected by the finger,
- wherein at least two side edges of the sensor surface are each connected at least indirectly to at least one piezo actuator,
- wherein the at least one piezo actuator is configured to introduce a surface vibration into the sensor surface in such a way that a frictional resistance between the finger and the sensor surface changes as a function of the changing contact points of the contour of the finger, wherein the at least one piezo actuator is configured to temporally change the surface vibration in such a way that a sequence of larger and smaller vibration amplitudes or frequencies is obtained in an area below the contact points of the finger on the sensor surface.
A method, comprising:
- detecting, by a sensor system, various contact points of a contour of a finger on a sensor surface as an operating input, wherein the sensor system includes a transmitting unit that transmits a signal to the finger and a receiving unit receiving a signal reflected by the at least one finger;
- and
- temporally changing a frictional resistance between the at least one finger and the sensor surface by introducing, by at least one actuator, a temporally changing surface vibration into the sensor surface as a function of changing contact points of the contour of the at least one finger, wherein the temporally changing surface vibration includes at least a first surface vibration followed by a second surface vibration, wherein the first surface vibration has a larger amplitude or frequency than the second surface vibration.
Dependencies are inferred from the claim text.