Method and sensor device for the detection of a gripping of a hand-held device
First Claim
1. A method for the detection of a gripping of a hand-held device with one hand, using a sensor device, comprising:
- at least one transmitting electrode, at least one compensating electrode and at least one receiving electrode, whereinthe sensor device can be operated in a first operating mode and in a second operating mode, the method comprising the steps of;
selecting the first or second operating mode, whereinwhen operating in the first operating mode;
applying a first alternating electrical signal to the transmitting electrode and a second alternating electrical signal to the compensating electrode andreceiving an electrical signal from the receiving electrode, wherein the gripping of the hand-held device is detected once the electrical signal exceeds a first threshold value, andwhen operating in the second operating mode;
applying no signal to the transmitting electrode and applying the second alternating electrical signal to the compensating electrode andreceiving an electrical signal from the receiving electrode, wherein the gripping of the hand-held device is detected once the electrical signal meets a predetermined detection criterion.
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Accused Products
Abstract
A method for the detection of a gripping of a hand-held device with one hand, using a capacitive sensor device, uses at least one transmitting electrode, at least one compensating electrode and at least one receiving electrode. An electrical signal is tapped at the receiving electrode and the sensor device can be operated in a first operating mode and in a second operating mode. In the first operating mode, a first alternating electrical signal is applied to the transmitting electrode and a second alternating electrical signal is applied to the compensating electrode. In the second operating mode, the second alternating signal is only applied to the compensating electrode. Furthermore, a sensor device can be provided which is configured to perform the method as described above.
8 Citations
29 Claims
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1. A method for the detection of a gripping of a hand-held device with one hand, using a sensor device, comprising:
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at least one transmitting electrode, at least one compensating electrode and at least one receiving electrode, wherein the sensor device can be operated in a first operating mode and in a second operating mode, the method comprising the steps of; selecting the first or second operating mode, wherein when operating in the first operating mode;
applying a first alternating electrical signal to the transmitting electrode and a second alternating electrical signal to the compensating electrode andreceiving an electrical signal from the receiving electrode, wherein the gripping of the hand-held device is detected once the electrical signal exceeds a first threshold value, and when operating in the second operating mode;
applying no signal to the transmitting electrode and applying the second alternating electrical signal to the compensating electrode andreceiving an electrical signal from the receiving electrode, wherein the gripping of the hand-held device is detected once the electrical signal meets a predetermined detection criterion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A sensor device for the detection of a gripping of a hand-held device with one hand, comprising
at least one transmitting electrode, at least one compensating electrode, at least one receiving electrode, wherein the sensor device is configured to apply in a first operating mode a first alternating electrical signal to the transmitting electrode and a second alternating electrical signal to the compensating electrode and to detect the gripping of the hand-held device when an electrical signal received from the receiving electrode exceeds a first threshold value, and apply in a second operating mode no signal to the transmitting electrode and apply the second alternating electrical signal to the compensating electrode and to detect the gripping of the hand-held device when an electrical signal received from the receiving electrode meets a predetermined detection criterion.
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28. An electrical hand-held device comprising
a sensor device for the detection of a gripping of the hand-held device, the sensor device comprising at least one transmitting electrode, at least one compensating electrode, and at least one receiving electrode, wherein the sensor device is configured to select a first or a second operating mode, wherein when operating in the first operating mode, the sensor device is operable: -
to apply a first alternating electrical signal to the transmitting electrode and a second alternating electrical signal to the compensating electrode and to receive an electrical signal from the receiving electrode, wherein the gripping of the hand-held device is detected once the electrical signal exceeds a first threshold value, and when operating in the second operating mode, the sensor device is operable; to apply no signal to the transmitting electrode and apply the second alternating signal to the compensating electrode and to receive an electrical signal from the receiving electrode, wherein the gripping of the hand-held device is detected once the electrical signal meets a predetermined detection criterion. - View Dependent Claims (29)
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Specification