Key press detecting circuit
    1.
    发明公开
    Key press detecting circuit 审中-公开
    按键检测电路

    公开(公告)号:EP2120339A3

    公开(公告)日:2010-12-08

    申请号:EP09159153.7

    申请日:2009-04-30

    申请人: Thomson Licensing

    IPC分类号: H03K5/00

    CPC分类号: H03K5/1254 H03K17/22

    摘要: A key press detecting circuit for detecting the status of the key (K1) is provided. The key press detecting circuit comprises a discharging circuit (1) which discharges when the key (K1) is pressed; and a voltage detecting circuit (2), which comprises a combination of a PNP transistor (T2) and a NPN transistor (T3), wherein when the discharging circuit (1) discharges for a predefined period, the PNP transistor (T2) will be turn on, which causes the NPN transistor (T3) to be turned on and to output a second signal (RESET) for a second function.

    SWITCH DE-BOUNCING DEVICE AND METHOD
    3.
    发明授权
    SWITCH DE-BOUNCING DEVICE AND METHOD 有权
    开关防抖动功能的装置和方法

    公开(公告)号:EP2151053B1

    公开(公告)日:2012-03-14

    申请号:EP08769830.4

    申请日:2008-05-29

    IPC分类号: G11C27/02 H03K5/1254

    CPC分类号: G11C27/02 H03K5/1254

    摘要: A switch de-bouncing device includes a majority counter that counts samples generated by a sampler sampling a switch output where a counter value is incremented for each sample indicating a first switch state and decremented for each sample indicating a second switch state of the switch. A controller determines that the switch is in the first switch state when the counter value is above a first state threshold and is in the second switch state when the counter value is below a second state threshold.

    STANDBY CIRCUIT AND ELECTRIC APPLIANCE COMPRISING SUCH A CIRCUIT
    4.
    发明公开
    STANDBY CIRCUIT AND ELECTRIC APPLIANCE COMPRISING SUCH A CIRCUIT 有权
    备用电路和与该电路电气设备

    公开(公告)号:EP2308148A2

    公开(公告)日:2011-04-13

    申请号:EP09769644.7

    申请日:2009-06-24

    IPC分类号: H02J9/00

    摘要: The present invention relates to an electric standby circuit (4) for an electric appliance. The circuit comprises a switch (41) adapted to open and close an electric connection between a first input (IN1) and an output (OUT) of the circuit (4), and a bistable circuit electrically connected to the switch in order to control the opening and closing thereof. The bistable circuit comprises a first BJT transistor (Q19) of the pnp type and a second BJT transistor (Q12) of the npn type. The first transistor (Q19) is connected to the first input (IN1) through the emitter, and the collector of the first transistor (Q19) is connected to the base of the second transistor (Q12) through a first resistor (R39). The collector of the second transistor (Q12) is connected to the switch (41) and to a second input (IN3) through a second resistor (R40). The base of the first transistor (Q19) is connected to the second input (IN3) through a third resistor (R38).

    A DEBOUNCING CIRCUIT
    6.
    发明授权
    A DEBOUNCING CIRCUIT 有权
    ENTPRELLUNGSSCHALTUNG

    公开(公告)号:EP1935095B1

    公开(公告)日:2009-11-04

    申请号:EP07766264.1

    申请日:2007-07-17

    发明人: MACAULAY, Rob

    IPC分类号: H03K5/1254

    CPC分类号: H03K5/1254

    摘要: A switch circuit comprising a mechanical switch having two contact elements, the switch being operable to bring the two contact elements into physical contact and thereby output an analogue switch signal representative of operation of the switch and a sigma-delta modulator arranged to receive the analogue switch signal and to output a digital switch signal in dependence thereon, the sigma-delta modulator having a frequency response such that it can suppress a relatively high frequency component of the analogue input signal and thereby effectively debounce the output of the switch.

    SWITCH DE-BOUNCING DEVICE AND METHOD
    7.
    发明公开
    SWITCH DE-BOUNCING DEVICE AND METHOD 有权
    开关防抖动功能的装置和方法

    公开(公告)号:EP2151053A2

    公开(公告)日:2010-02-10

    申请号:EP08769830.4

    申请日:2008-05-29

    IPC分类号: H03K5/1254

    CPC分类号: G11C27/02 H03K5/1254

    摘要: A switch de-bouncing device includes a majority counter that counts samples generated by a sampler sampling a switch output where a counter value is incremented for each sample indicating a first switch state and decremented for each sample indicating a second switch state of the switch. A controller determines that the switch is in the first switch state when the counter value is above a first state threshold and is in the second switch state when the counter value is below a second state threshold.

    A DEBOUNCING CIRCUIT
    9.
    发明公开
    A DEBOUNCING CIRCUIT 有权
    反跳

    公开(公告)号:EP1935095A1

    公开(公告)日:2008-06-25

    申请号:EP07766264.1

    申请日:2007-07-17

    发明人: MACAULAY, Rob

    IPC分类号: H03K5/1254

    CPC分类号: H03K5/1254

    摘要: A switch circuit comprising a mechanical switch having two contact elements, the switch being operable to bring the two contact elements into physical contact and thereby output an analogue switch signal representative of operation of the switch and a sigma-delta modulator arranged to receive the analogue switch signal and to output a digital switch signal in dependence thereon, the sigma-delta modulator having a frequency response such that it can suppress a relatively high frequency component of the analogue input signal and thereby effectively debounce the output of the switch.

    Schaltungsanordnung zur Signalentprellung

    公开(公告)号:EP1335491A2

    公开(公告)日:2003-08-13

    申请号:EP03001053.2

    申请日:2003-01-17

    IPC分类号: H03K5/1254

    CPC分类号: H03K5/1254

    摘要: Die Erfindung betrifft eine Schaltungsanordnung zur Entprellung von Eingangssignalen mit einer Speicheranordnung, die als Matrix mit wenigstens M Spalten und N Zeilen, mit M, N ≥ 1 organisiert ist und bei der vorgesehen ist, Signalzustände eines Eingangssignals jeweils einer Spalte M zuzuführen und als Eintrag zu speichern, und bei der in Abhängigkeit wenigstens einer logischen Verknüpfung von wenigstens zwei Einträgen einer Spalte die Stabilität des Eingangssignals ableitbar ist. Weiter betrifft die Erfindung ein Verfahren zur Entprellung von Eingangssignalen und eine Automatisierungsanlage. Um viele Signalzustände einer derartigen Schaltungsanordnung gleichzeitig mit geringem Aufwand auf ihre Stabilität zu untersuchen, wird vorgeschlagen, in einer Speicheranordnung jeweils die zeitlich älteste Zeile mit Einträgen zu überschreiben und jeweils alle Einträge einer Spalte logisch miteinander zu verknüpfen, wobei vorzugsweise alle Einträge einer Zeile zeitgleich mit den Einträgen einer anderen Zeile verknüpft werden. Durch die statische Struktur der Speicheranordnung müssen die Einträge zur Verknüpfung nicht verschoben oder ausgetauscht werden, so dass für viele Eingangssignale eine einfache Auswertung in Bezug auf die Stabilität erfolgen kann.

    摘要翻译: 电路装置具有被组织为具有输入信号(AZ)的信号状态的矩阵的存储装置(10),并将其存储为条目,并且从至少两个条目的至少一个逻辑组合导出信号的稳定性 的列。 要读取的当前信号状态与最旧的条目一起存储在行中。 还包括以下独立权利要求:一种消除输入信号和自动化系统的方法。