CN102760022A - Non-contact sensing device and method around computer - Google Patents

Abstract

Translated fromChinese

本发明公开了计算机周边的非接触式感应装置及其方法，该感应装置包括感应单元、控制器与发射单元。感应单元可检测一数字指向装置，并产生感应信号。控制器根据感应信号，在时序上以不同比例输出启动信号或停止信号，以让发射单元动态地产生震荡信号至数字指向装置，而使非接触式感应装置所消耗的电源可以大幅的节省。

The present invention discloses a non-contact sensing device for computer peripherals and a method thereof. The sensing device comprises a sensing unit, a controller and a transmitting unit. The sensing unit can detect a digital pointing device and generate a sensing signal. The controller outputs a start signal or a stop signal in different proportions in a timing sequence according to the sensing signal, so that the transmitting unit dynamically generates an oscillation signal to the digital pointing device, thereby greatly saving the power consumed by the non-contact sensing device.

Description

Translated fromChinese

计算机周边的非接触式感应装置及其方法Non-contact sensing device and method around computer

技术领域technical field

本发明关于一种感应装置，特别是一种计算机周边的非接触式感应装置。The invention relates to a sensing device, in particular to a non-contact sensing device around a computer.

背景技术Background technique

目前市面上的数字板都搭配无线指针组件使用，当无线指针组件接触到数字板时，无线指针组件会产生电磁感应信号，让数字板可利用磁耦合的方式来演算出无线指针组件目前的坐标位置，再将坐标位置传送到计算机端。At present, the digital boards on the market are used with wireless pointer components. When the wireless pointer components touch the digital board, the wireless pointer components will generate electromagnetic induction signals, so that the digital board can use magnetic coupling to calculate the current coordinates of the wireless pointer components. position, and then transmit the coordinate position to the computer.

为了免去使用电池的不便，无线指针组件工作所需的电源可以电磁共振的方式来取得。无线指针组件在接收电磁共振信号后，电磁共振信号转换为电磁感应信号。数字板再根据电磁感应信号的振幅大小，产生指向信号。In order to avoid the inconvenience of using batteries, the power required for the operation of the wireless pointer assembly can be obtained by means of electromagnetic resonance. After the wireless pointer component receives the electromagnetic resonance signal, the electromagnetic resonance signal is converted into an electromagnetic induction signal. The digital board then generates a pointing signal according to the amplitude of the electromagnetic induction signal.

现有技术提出一种切换的技术，以避免电磁共振信号与电磁感应信号之间互相干扰。数字板上可设置有一数字开关，因此数字板可在发送电磁共振信号与接收电磁感应信号之间进行切换。因此，数字板可根据电磁感应信号的振幅，计算出精确的坐标值。The prior art proposes a switching technique to avoid mutual interference between the electromagnetic resonance signal and the electromagnetic induction signal. A digital switch can be arranged on the digital board, so that the digital board can switch between sending electromagnetic resonance signals and receiving electromagnetic induction signals. Therefore, the digital board can calculate the precise coordinate value according to the amplitude of the electromagnetic induction signal.

然而，现有技术在电磁共振信号与电磁感应信号之间以固定的时间比例进行切换。因此，即使当无线指针组件未置于数字板上时，数字板仍然一直会持续的产生电磁共振信号，而造成能源的浪费。However, the prior art switches between the electromagnetic resonance signal and the electromagnetic induction signal at a fixed time ratio. Therefore, even when the wireless pointer assembly is not placed on the digital board, the digital board still continuously generates electromagnetic resonance signals, resulting in waste of energy.

发明内容Contents of the invention

鉴于以上的问题，本发明提出一种非接触式感应装置，于一数字指示装置相互搭配使用，该非接触式感应装置，包括：一电源、一发射单元、一感应单元及一控制器。In view of the above problems, the present invention proposes a non-contact sensing device, which is used together with a digital indicating device. The non-contact sensing device includes: a power supply, a transmitting unit, a sensing unit and a controller.

电源用以产生一电源信号。发射单元将电源信号转换成一震荡信号，并传送当数字指向装置。感应单元接收数字指向装置传送回来的震荡信号再转换成一感应信号。控制器根据感应信号，输出不同时间长度比例的启动信号及停止信号给发射单元及感应单元，以进行动态式切换。The power supply is used to generate a power signal. The transmitting unit converts the power signal into an oscillating signal and transmits it as a digital pointing device. The sensing unit receives the oscillating signal sent back from the digital pointing device and converts it into a sensing signal. According to the induction signal, the controller outputs start signals and stop signals with different time length ratios to the transmitting unit and the sensing unit for dynamic switching.

动态式切换为控制器会同时输出启动信号给发射单元及输出停止信号给感应单元。当发射单元接收到启动信号时，感应单元会接收到停止信号；反之，当发射单元接收到停止信号时，感应单元会接收到启动信号。因此当发射单元接收到启动信号后，发射单元会将电源信号转换成震荡信号，同时感应单元会终止产生感应信号；反之，当发射单元接收到停止信号后，发射单元会终止产生震荡信号，同时感应单元会产生感应信号。The dynamic switch is that the controller will simultaneously output the start signal to the transmitting unit and output the stop signal to the sensing unit. When the transmitting unit receives the start signal, the sensing unit will receive the stop signal; otherwise, when the transmitting unit receives the stop signal, the sensing unit will receive the start signal. Therefore, when the transmitting unit receives the start signal, the transmitting unit will convert the power signal into an oscillating signal, and at the same time the sensing unit will stop generating the sensing signal; conversely, when the transmitting unit receives the stop signal, the transmitting unit will stop generating the oscillating signal, and at the same time The sensing unit generates sensing signals.

发射单元包括一开关与一震荡电路。震荡电路与电源之间以开关电性连接。该开关电性连接至控制器。当控制器输出启动信号时，开关导通电源与震荡电路。当控制器输出停止信号，开关截断电源与震荡电路。The transmitting unit includes a switch and an oscillation circuit. The oscillating circuit is electrically connected with the power supply through a switch. The switch is electrically connected to the controller. When the controller outputs a start signal, the switch conducts the power supply and the oscillation circuit. When the controller outputs a stop signal, the switch cuts off the power supply and the oscillation circuit.

感应单元包括一开关与一双轴感应线圈。双轴感应线圈与电源之间以开关电性连接。该开关电性连接至控制器。当控制器输出启动信号时，开关导通电源与双轴感应线圈。当控制器输出停止信号，开关截断电源与双轴感应线圈。The induction unit includes a switch and a dual-axis induction coil. The biaxial induction coil is electrically connected with the power supply through a switch. The switch is electrically connected to the controller. When the controller outputs a start signal, the switch conducts the power supply and the dual-axis induction coil. When the controller outputs a stop signal, the switch cuts off the power supply and the dual-axis induction coil.

藉由动态地调整启动信号与停止信号之间的时间长度比例，进而让非接触式感应装置中的发射单元及感应单元能在适当的时间产生震荡信号及感应信号。因此，非接触式感应装置可以大幅的节省电源的消耗。By dynamically adjusting the time length ratio between the start signal and the stop signal, the transmitting unit and the sensing unit in the non-contact sensing device can generate an oscillation signal and a sensing signal at an appropriate time. Therefore, the non-contact sensing device can greatly save power consumption.

附图说明Description of drawings

图1为本发明的计算机周边的非接触式感应装置的方块示意图；1 is a schematic block diagram of a non-contact sensing device around a computer of the present invention;

图2为本发明的计算机周边的非接触式感应装置的第一实施例的信号时序示意图；FIG. 2 is a schematic diagram of signal timing of the first embodiment of the non-contact sensing device around the computer of the present invention;

图3为本发明的计算机周边的非接触式感应装置的第二实施例的信号时序示意图；FIG. 3 is a schematic diagram of the signal sequence of the second embodiment of the non-contact sensing device around the computer of the present invention;

图4为本发明的计算机周边的非接触式感应装置的第三实施例的信号时序示意图；FIG. 4 is a schematic diagram of the signal sequence of the third embodiment of the non-contact sensing device around the computer of the present invention;

图5A与图5B为本发明的发射单元示意图；5A and 5B are schematic diagrams of the transmitting unit of the present invention;

图6A与图6B为本发明的感应单元示意图；以及6A and 6B are schematic diagrams of the sensing unit of the present invention; and

图7为本发明所提出的非接触式感应方法的流程图。FIG. 7 is a flow chart of the non-contact sensing method proposed by the present invention.

其中，附图标记：Among them, reference signs:

10  非接触式感应装置10 Non-contact sensing device

12  电源12 power supply

20  发射单元20 launch units

22  开关22 switch

24  震荡电路24 oscillator circuit

30  控制器30 controllers

40  感应单元40 induction unit

42  开关42 switch

44  双轴感应线圈44 Dual-axis induction coil

50  数字指向装置50 digital pointing device

52  第一线圈52 first coil

54  第二线圈54 second coil

具体实施方式Detailed ways

以下在实施方式中进一步详细说明本发明的详细特征以及优点，其内容足以使任何本领域的技术人员了解本发明的技术内容并据以实施，且根据本说明书所公开的内容、权利要求保护范围及附图，任何本领域的技术人员可轻易地理解本发明相关的目的及优点。The detailed features and advantages of the present invention are further described in the following embodiments, the content of which is sufficient for any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification and the scope of protection of the claims With the accompanying drawings, any person skilled in the art can easily understand the related objects and advantages of the present invention.

请参照图1，图1为本发明的计算机周边的非接触式感应装置的方块示意图。Please refer to FIG. 1 . FIG. 1 is a schematic block diagram of a non-contact sensing device around a computer according to the present invention.

非接触式感应装置10包括电源12、发射单元20、控制器30及感应单元40。非接触式感应装置10可为一数字板。非接触式感应装置10对应数字指向装置50，并且数字指向装置50可设置于非接触式感应装置10的工作区域内。使用者操控指向装置50，即可运用此非接触式感应装置10来对于计算机进行操作。Thenon-contact sensing device 10 includes apower source 12 , a transmittingunit 20 , acontroller 30 and asensing unit 40 . Thenon-contact sensing device 10 can be a digital pad. Thenon-contact sensing device 10 corresponds to the digital pointing device 50 , and the digital pointing device 50 can be disposed in the working area of thenon-contact sensing device 10 . The user can use thenon-contact sensing device 10 to operate the computer by manipulating the pointing device 50 .

电源12用以产生一电源信号。电源12可接受由通用序列总线(UniversalSerial Bus，USB)或是可由电池供电，亦可由交流电经变压器转换成直流电后所产生的电源12。Thepower supply 12 is used for generating a power signal. Thepower supply 12 can be powered by a Universal Serial Bus (USB) or a battery, or can be apower supply 12 generated by converting alternating current into direct current through a transformer.

电源12电性连接至发射单元20、控制器30及感应单元40。Thepower supply 12 is electrically connected to the transmittingunit 20 , thecontroller 30 and thesensing unit 40 .

当发射单元20接收到电源信号后，会将电源信号转换成一震荡信号，并且传送给数字指向装置50。当数字指向装置50中的第一线圈52接收到震荡信号后，会将震荡信号转换成能量储存，并由第二线圈54传送震荡信号到感应组件40。When the transmittingunit 20 receives the power signal, it converts the power signal into an oscillating signal and sends it to the digital pointing device 50 . When the first coil 52 in the digital pointing device 50 receives the oscillating signal, it converts the oscillating signal into energy storage, and the second coil 54 transmits the oscillating signal to theinduction component 40 .

感应单元40接收到数字指向装置50传送回来的震荡信号后，会将其转换成一感应信号。After receiving the oscillating signal sent back from the digital pointing device 50 , thesensing unit 40 converts it into a sensing signal.

控制器30根据感应信号，输出不同时间长度比例的启动信号及停止信号给发射单元20及感应单元40，以进行动态式切换。Thecontroller 30 outputs start signals and stop signals with different time length ratios to the transmittingunit 20 and thesensing unit 40 according to the sensing signals for dynamic switching.

该控制器30具有第一状态与第二状态。在第一状态下，启动信号与停止信号之间的时间长度比为第一比例。在第二状态下，启动信号与停止信号之间的时间长度比为第二比例。当控制器30检测到感应单元40产生感应信号时，代表数字指向装置50置于感应组件40的工作区域中，控制器30可将其状态设定为为第二状态。当控制器30未检测到感应单元40时，控制器30可将其状态设定为为第一状态。其中，第一状态中停止信号所占的比例大于第二状态中停止信号所占的比例。Thecontroller 30 has a first state and a second state. In the first state, the time length ratio between the start signal and the stop signal is a first ratio. In the second state, the time length ratio between the start signal and the stop signal is a second ratio. When thecontroller 30 detects that thesensing unit 40 generates a sensing signal, it means that the digital pointing device 50 is placed in the working area of thesensing component 40 , and thecontroller 30 can set its state as the second state. When thecontroller 30 does not detect thesensing unit 40, thecontroller 30 may set its state to the first state. Wherein, the proportion of the stop signal in the first state is greater than the proportion of the stop signal in the second state.

当数字指向装置50置于感应单元40的工作区域内时，感应单元40根据数字指向装置50传送回来的震荡信号的振幅大小来产生感应信号。感应信号代表数字指向装置50的位置。When the digital pointing device 50 is placed in the working area of thesensing unit 40 , thesensing unit 40 generates a sensing signal according to the amplitude of the oscillating signal sent back by the digital pointing device 50 . The sensing signal represents the position of the digital pointing device 50 .

在本发明的一实施例中，当发射单元20接收到启动信号时，发射单元20会产生出震荡信号；反之，当发射单元20接收到停止信号时，发射单元20会终止产生出震荡信号。也就是说，发射单元20可间断地产生震荡信号。此外，发射单元20可根据不同比例(第一比例或是第二比例)而产生不同长度的震荡信号。In an embodiment of the present invention, when the transmittingunit 20 receives the start signal, the transmittingunit 20 will generate the oscillating signal; otherwise, when the transmittingunit 20 receives the stop signal, the transmittingunit 20 will stop generating the oscillating signal. That is to say, the transmittingunit 20 can generate the oscillating signal intermittently. In addition, the transmittingunit 20 can generate oscillating signals of different lengths according to different ratios (the first ratio or the second ratio).

另外，当感应单元40接收到启动信号时，感应单元40产生感应信号；反之，当感应单元40接收到停止信号时，感应组件40终止产生感应信号。因此，感应组件40所需要的电能也可以被节省。In addition, when thesensing unit 40 receives the start signal, thesensing unit 40 generates the sensing signal; otherwise, when thesensing unit 40 receives the stop signal, thesensing component 40 stops generating the sensing signal. Therefore, the power required by theinduction component 40 can also be saved.

请参照图2，图2为本发明的计算机周边的非接触式感应装置的第一实施例的信号时序示意图。Please refer to FIG. 2 . FIG. 2 is a signal timing diagram of the first embodiment of the non-contact sensing device around the computer according to the present invention.

在此图中，启动信号为一高准位信号(逻辑1)，且停止信号为低准位信号(逻辑0)。在第一状态下，启动信号与停止信号的第一比例为20％比80％。在第二状态下，启动信号与停止信号的第二比例为50％比50％。In this figure, the start signal is a high level signal (logic 1), and the stop signal is a low level signal (logic 0). In the first state, the first ratio of the start signal to the stop signal is 20% to 80%. In the second state, the second ratio of the start signal to the stop signal is 50% to 50%.

也就是说，在第一状态下，发射单元20只有20％的时间会产生第一震荡信号。因此，在第一状态下，非接触式感应装置10可以节省下许多的电力消耗。That is to say, in the first state, the transmittingunit 20 generates the first oscillating signal only 20% of the time. Therefore, in the first state, thenon-contact sensing device 10 can save a lot of power consumption.

虽上述实施例公开了特定的比例，然本发明并不以此为限。Although the above embodiments disclose specific proportions, the present invention is not limited thereto.

请参照图3，图3为本发明的计算机周边的非接触式感应装置的第二实施例的信号时序示意图。Please refer to FIG. 3 . FIG. 3 is a signal timing diagram of a second embodiment of a non-contact sensing device around a computer according to the present invention.

在第一状态下，启动信号与停止信号的第一比例为10％比90％。在第二状态下，启动信号与停止信号的第二比例为40％比60％。In the first state, the first ratio of the start signal to the stop signal is 10% to 90%. In the second state, the second ratio of the start signal to the stop signal is 40% to 60%.

在第一状态下，发射单元40只有10％的时间会产生第一震荡信号。也就是说，此非接触式感应装置10可以达到较佳的省电效果。In the first state, the transmittingunit 40 generates the first oscillating signal only 10% of the time. That is to say, thenon-contact sensing device 10 can achieve better power saving effect.

请参照图4，图4为本发明的计算机周边的非接触式感应装置的第三实施例的信号时序示意图。Please refer to FIG. 4 . FIG. 4 is a signal timing diagram of a third embodiment of a non-contact sensing device around a computer according to the present invention.

在第一状态下，启动信号与停止信号的第一比例为30％比70％。在第二状态下，启动信号与停止信号的第二比例为60％比40％。In the first state, the first ratio of the start signal to the stop signal is 30% to 70%. In the second state, the second ratio of the start signal to the stop signal is 60% to 40%.

在第二状态下，发射单元20会有60％的时间会产生第一震荡信号。也就是说，当数字指向装置50置于非接触式感应装置10上时，数字指向装置50可获得较佳的充电效果。In the second state, the transmittingunit 20 generates the first oscillating signal 60% of the time. That is to say, when the digital pointing device 50 is placed on thenon-contact sensing device 10 , the digital pointing device 50 can obtain a better charging effect.

请参照图5A与图5B，图5A与图5B为本发明的发射单元示意图。发射单元20包括一开关22及一震荡电路24，该震荡电路24与电源12之间以开关22电性连接，该开关22也电性连接至控制器30。在图5A中，当控制器30输出启动信号，开关22导通电源12与震荡电路24。在图5B中，当控制器30输出停止信号，开关22截断电源12与震荡电路24。Please refer to FIG. 5A and FIG. 5B . FIG. 5A and FIG. 5B are schematic diagrams of the transmitting unit of the present invention. The transmittingunit 20 includes aswitch 22 and anoscillating circuit 24 , theoscillating circuit 24 is electrically connected to thepower source 12 through theswitch 22 , and theswitch 22 is also electrically connected to thecontroller 30 . In FIG. 5A , when thecontroller 30 outputs a start signal, theswitch 22 connects thepower source 12 and theoscillation circuit 24 . In FIG. 5B , when thecontroller 30 outputs a stop signal, theswitch 22 cuts off thepower source 12 and theoscillation circuit 24 .

请参照图6A与图6B，图6A与图6B为本发明的感应单元示意图。感应单元40包括一开关42与一双轴感应线圈44。双轴感应线圈44与电源12之间以开关42电性连接，该开关42也电性连接至控制器30。在图6A中，当控制器30输出启动信号，开关42导通电源12与双轴感应线圈44。在图6B中，当控制器30输出停止信号，开关42截断电源12与双轴感应线圈44。Please refer to FIG. 6A and FIG. 6B . FIG. 6A and FIG. 6B are schematic diagrams of the sensing unit of the present invention. Theinduction unit 40 includes aswitch 42 and a biaxial induction coil 44 . The biaxial induction coil 44 is electrically connected to thepower source 12 through aswitch 42 , and theswitch 42 is also electrically connected to thecontroller 30 . In FIG. 6A , when thecontroller 30 outputs an activation signal, theswitch 42 connects thepower source 12 and the dual-axis induction coil 44 . In FIG. 6B , when thecontroller 30 outputs a stop signal, theswitch 42 cuts off thepower source 12 and the dual-axis induction coil 44 .

当数字指向装置50未置于感应组件40的工作区域内时，可以藉由动态地调整启动信号与停止信号之间的时间长度比例，让非接触式感应装置10仅消耗非常少量的电能。当数字指向装置50置于感应组件40的工作区域内时，也藉由动态地调整启动信号与停止信号之间的时间长度比例，让非接触式感应装置10以适当强度的电能提供给数字指向装置50。因此，非接触式感应装置10可以大幅节省的电能消耗。When the digital pointing device 50 is not placed in the working area of thesensing element 40 , thenon-contact sensing device 10 can only consume a very small amount of power by dynamically adjusting the time length ratio between the start signal and the stop signal. When the digital pointing device 50 is placed in the working area of thesensing component 40, thenon-contact sensing device 10 can provide the digital pointing device with an appropriate intensity of electric energy by dynamically adjusting the time length ratio between the start signal and the stop signal. device 50. Therefore, thenon-contact sensing device 10 can greatly save power consumption.

请参照图7为本发明所提出的非接触式感应方法的流程图。一种计算机周边的非接触式感应方法，与一数字指向装置相互搭配使用，该非接触式感应方法，其步骤包括：Please refer to FIG. 7 , which is a flow chart of the non-contact sensing method proposed by the present invention. A non-contact sensing method around a computer is used in conjunction with a digital pointing device. The non-contact sensing method comprises:

在步骤S101中，提供一电源信号。In step S101, a power signal is provided.

在步骤S103中，将电源信号转换成一震荡信号，并传送给数字指向装置。In step S103, the power signal is converted into an oscillating signal and sent to the digital pointing device.

在步骤S105中，接收数字指向装置传送回来的震荡信号并转换成感应信号。In step S105, the oscillating signal sent back by the digital pointing device is received and converted into an induction signal.

在步骤S107中，根据感应信号，输出不同时间长度比例的启动信号及停止信号，以进行动态式切换。In step S107, according to the sensing signal, a start signal and a stop signal with different time length ratios are outputted to perform dynamic switching.

其中该动态式切换为利用启动信号及停止信号来控制震荡信号及感应信号是在不同时间相互产生。Wherein the dynamic switching is to use the start signal and the stop signal to control the oscillation signal and the induction signal to be mutually generated at different times.

在此流程中，具有第一状态及第二状态。该第一状态的停止信号时间的长度比例会大于第二状态的停止信号时间的长度比例。In this flow, there is a first state and a second state. The length ratio of the stop signal time in the first state is greater than the length ratio of the stop signal time in the second state.

Claims (9)

1. the non-contact type inductor of computing machine periphery is characterized in that, with the digital indicator device use of arranging in pairs or groups each other, this non-contact type inductor comprises:

One power supply produces a power supply signal;

One transmitter unit converts this power supply signal to an oscillator signal, and transmits this oscillator signal and give this numeral indicator device;

One sensing unit receives this oscillator signal that this numeral indicator device transmits, and converts this oscillator signal to an induced signal; And

One controller, according to this induced signal, an enabling signal and a stop signal of output different time length ratio are given this transmitter unit and this sensing unit, switch to carry out a dynamic type.

2. the non-contact type inductor of computing machine periphery as claimed in claim 1; It is characterized in that; This controller has one first state and one second state, and the shared time span ratio of this stop signal of this first state can be greater than the shared time span ratio of this stop signal of second state.

3. the non-contact type inductor of computing machine periphery as claimed in claim 2 is characterized in that when this controller did not detect this induced signal, this controller was this first state, and when controller detected this induced signal, this controller was this second state.

4. the non-contact type inductor of computing machine periphery as claimed in claim 1 is characterized in that this transmitter unit comprises a switch and an oscillating circuit; Electrically connect with this switch between this oscillating circuit and this power supply; This switch is electrically connected to this controller, when this this enabling signal of controller output, this switch meeting this power supply of conducting and this oscillating circuit; When this this stop signal of controller output, this switch can block this power supply and this oscillating circuit.

5. the non-contact type inductor of computing machine periphery as claimed in claim 1 is characterized in that this sensing unit comprises a switch and a twin shaft inductive coil; Electrically connect with this switch between this twin shaft inductive coil and this power supply; This switch also is electrically connected to this controller, when this this enabling signal of controller output, this switch meeting this power supply of conducting and this twin shaft inductive coil; When this this stop signal of controller output, this switch can block this power supply and this twin shaft inductive coil.

6. the non-contact type inductor of computing machine periphery as claimed in claim 1; It is characterized in that; This dynamic type switches to this controller and exports this enabling signal simultaneously and give this sensing unit or export this stop signal simultaneously and give this sensing unit for this transmitter unit and this enabling signal for this transmitter unit and this stop signal; When this transmitter unit receives this enabling signal; This sensing unit can receive this stop signal, and when this transmitter unit received this stop signal, this sensing unit can receive this enabling signal.

7. the non-contact inductive method of computing machine periphery is characterized in that, with the digital indicator device use of arranging in pairs or groups each other, this non-contact inductive method comprises:

One power supply signal is provided;

Convert this power supply signal to an oscillator signal, and send this numeral indicator device to;

Should the numeral indicator device transmit this oscillator signal and convert an induced signal to; And

According to this induced signal, an enabling signal and a stop signal of output different time length ratio are switched to carry out a dynamic type.

8. the non-contact inductive method of computing machine periphery as claimed in claim 7; It is characterized in that; Further have one first state and one second state, this stop signal time span of this first state is than meeting this stop signal time span ratio greater than this second state.

9. the non-contact inductive method of computing machine as claimed in claim 7 periphery is characterized in that, this dynamic type switches to and utilizes this enabling signal and this stop signal to control this oscillator signal and this induced signal is to produce each other at different time.

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