Method and apparatus for carrying out a switching process using an operating element including at least one light-emitting diode as a display and a device for measuring the voltage of same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01J-040/14
H03K-017/96
출원번호
US-0697849
(2011-05-26)
등록번호
US-9000348
(2015-04-07)
우선권정보
AT-A 880/2010 (2010-05-31)
국제출원번호
PCT/AT2011/000241
(2011-05-26)
§371/§102 date
20121114
(20121114)
국제공개번호
WO2011/150437
(2011-12-08)
발명자
/ 주소
Fasthuber, Christian
Schuster, Florian
Ortner, Gerald
Sandberger, Michael
출원인 / 주소
Fronius International GmbH
대리인 / 주소
Collard & Roe, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
1
초록▼
The invention relates to a method and an apparatus for performing a switching operation with the aid of a operation element (13). In order to avoid mechanical components, at least one light-emitting diode (14) is used as the operating element (13), and the voltage (U) on the at least one light-emitt
The invention relates to a method and an apparatus for performing a switching operation with the aid of a operation element (13). In order to avoid mechanical components, at least one light-emitting diode (14) is used as the operating element (13), and the voltage (U) on the at least one light-emitting diode (14) is measured in the switched-off state, and the switching operation is performed when the measured voltage (15) falls below a pregiven lower threshold (18) over a pregiven time period (19).
대표청구항▼
1. A method for performing a switching operation by the aid of an operating element, comprising the steps of: providing an operating element with at least one light-emitting diode provided as a display,in the switched-off state, measuring the voltage on the at least one light-emitting diode, wherein
1. A method for performing a switching operation by the aid of an operating element, comprising the steps of: providing an operating element with at least one light-emitting diode provided as a display,in the switched-off state, measuring the voltage on the at least one light-emitting diode, wherein the voltage on the at least one light-emitting diode is induced by ambient light and measured in the switched-off state, andperforming a switching operation if and when the measured voltage falls below a pre-given lower threshold for a pre-given time period because of the shading of the at least one light-emitting diode due to a brightness reduction of the ambient light. 2. The method according to claim 1, wherein the switching operation is performed if and when the measured voltage, after having fallen below the pre-given lower threshold (18), additionally rises above a pre-given upper threshold (20). 3. The method according to claim 2, wherein the switching operation is performed if and when the measured voltage additionally rises above the pre-given upper threshold for a further pre-given time period. 4. The method according to claim 2, wherein the upper threshold is changed as a function of the intensity of the ambient light. 5. The method according to claim 1, wherein the at least one light-emitting diode is periodically switched off, and upon switching-off the measurement of the voltage on the at least one light-emitting diode is each started in the switched-off state. 6. A method for performing a switching operation by the aid of an operating element, comprising the steps of: providing an operating element with at least one light-emitting diode as a display,in the switched-off state, measuring the voltage on the at least one light-emitting diode, wherein the voltage on the at least one light-emitting diode is measured in the switched-off state,irradiating the at least one light-emitting diode by at least one reference light-emitting diode during the switched-off state, wherein the voltage on the at least one light-emitting diode is induced by the light of the reference light-emitting diode and measured in the switched-off state irradiated by the at least one reference light-emitting diode,subsequently switching off the at least one reference light-emitting diode,measuring the voltage on the at least one light-emitting diode in the switched-off state, andperforming a switching operation if and when the measured voltage falls below a pre-given lower threshold for a pre-given time period because of the shading of the at least one light-emitting diode. 7. The method according to claim 6, wherein the at least one reference light-emitting diode is switched on after a defined time period. 8. The method according to claim 6, wherein the at least one reference light-emitting diode is switched off as a function of the measured voltage. 9. The method according to claim 6, wherein the switching operation is only performed, if and when the measured voltage lies within a pre-given evaluation range between an upper threshold and a lower threshold. 10. The method according to claim 1, wherein the execution of the switching operation is signaled optically, acoustically or mechanically. 11. A device for performing a switching operation by the aid of an operating element, comprising: an operating element formed by at least one light-emitting diode as a display, anda device for measuring the voltage induced by ambient light on the at least one light-emitting diode in a switched-off state, wherein the measured voltage is provided to enable the switching operation if and when the measured voltage falls below a pre-given lower threshold for a pre-given time period because of the shading of the at least one light-emitting diode due to a brightness reduction of the ambient light. 12. The device according to claim 11, wherein the device for measuring the voltage is formed by a measuring amplifier. 13. The device according to claim 11, wherein a resistor is connected in parallel with the at least one light-emitting diode, and wherein connections of the at least one light-emitting diode are connected to the device for measuring the voltage and are each connected to ground via a capacitor. 14. The device according to claim 11, wherein at least one reference light-emitting diode is provided to create a defined ambient light. 15. The device according to claim 11, wherein a partially opaque cover is arranged around the at least one light-emitting diode and optionally the at least one reference light-emitting diode.
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이 특허에 인용된 특허 (1)
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