Method and sensor device for detecting grasping of a handheld device
A sensor device, hand-held device technology, applied in the field of hand-held device, grasped sensor device, can solve the problem of impossible to determine the ground reference and the like
Inactive Publication Date: 2016-11-09
NEODRON LTD
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- Claims
- Application Information
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Problems solved by technology
However, the modified supply voltage can be detected, but most likely the alternative measurement mode described earlier will not be activated, since the ground reference changes only slightly or not at all with the modified supply voltage
However, if the alternative measurement mode is still to be used to detect the grip of the handheld device, then the capacitive sensor device will no longer be able to reliably detect the grip of the handheld device without additional measures
[0007] Also, in this way, it is impossible to determine the actual ground reference
Method used
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[0069] figure 1 showing a sensor device according to the invention for detecting the grasping of a hand-held device with one hand, said sensor device being operable in a first mode of operation (transmission mode) and in a second mode of operation (absorption mode), As described in detail below.
[0070] The present invention provides at least three electrodes for detecting the grasping of a handheld device with a single hand. The sensor device comprises at least one transmitting electrode SE, at least one compensation electrode KE and at least one receiving electrode EE. The receiving electrode EE is connected to the signal input of the analysis device or control device (receiver R). The emitting electrode SE and the compensating electrode KE are respectively coupled with a signal generator G, and the signal generator G provides an alternating electric quantity of a certain frequency and a certain amplitude. Hereinafter, this alternating electrical quantity is referred to ...
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The invention provides a method for detecting the grasping of a handheld device with one hand using a capacitive sensor device comprising at least one transmitting electrode, at least one compensating electrode and at least one receiving electrode. An electrical signal is tapped at the receive electrode and can cause the sensor device to operate in a first mode of operation and in a second mode of operation. In the first mode of operation, a first alternating electrical signal is applied to the transmitting electrode and a second alternating electrical signal is applied to the compensation electrode. In the second mode of operation, only the second alternating signal is applied to the compensation electrodes. The invention also provides a sensor device configured to perform the method according to the invention.
Description
technical field [0001] The invention relates to a method for detecting the grip of a handheld device with one hand using a capacitive sensor device and a sensor device for detecting the grip of a handheld device with one hand. Furthermore, the invention relates to a hand-held device comprising a sensor device according to the invention, which sensor device is configured to carry out the method according to the invention. Background technique [0002] Capacitive sensor devices are known from the prior art which can, for example, be arranged at a hand-held device in order to detect the grasping of said hand-held device with a single hand. A change in the dielectric properties in the region of the sensor electrodes of a capacitive sensor device suggests a single-handed grip of the handheld device. When a grasp of the handheld device with one hand is detected, for example, the handheld device may be caused to switch from a sleep mode to an active mode. [0003] With regard to ...
Claims
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IPC IPC(8): G06F1/16G06F1/32H03K17/96H03K17/955
CPCG06F1/1684G06F1/3231H03K17/955H03K17/962H03K2217/960705H03K2217/960775Y02D10/00G01R27/2605G06F3/041
Inventor 史蒂芬·伯格安德烈亚斯·多夫纳霍尔格·埃尔肯斯克劳斯·卡尔特纳霍尔格·斯蒂芬斯
Owner NEODRON LTD