TWI220966B - Tablet system with inductive loop and cord less and cell less pointer device controlled by multi-channel switch and method for transmitting and receiving its signal - Google Patents

Abstract

The purpose of the present invention is to reduce power consumption caused by controlling circuit in transmitting/receiving process between tablet system and cord less and cell less pointer apparatus. The present invention provides an multi-channel switch produced in semi-conductor process to replace traditional analog switch and tri-state element used in prior art as signal transmitting/receiving selector of inductive loop of tablet, which can simplify controlling circuit, enhance power efficiency of signal transmitting/receiving between tablet system and cord less and cell less pointer apparatus, and increase speed of response of signal transmitting/receiving between tablet and cord less and cell less pointer apparatus.

Description

1220966

12 1 Q V. Description of the invention (1) 1. [Technical field to which the invention belongs] The present invention relates to a tablet system for controlling an induction loop and a wireless-battery-free indicator device using a multi-channel switch combination circuit, and its signal transmission and The receiving method, in particular, relates to a bidirectional multi-channel switch combination circuit for controlling a tablet system having an induction loop and a wireless-battery-free indicator device, and a signal transmitting and receiving method thereof. 2. [Previous technology] Since the handwriting input circuit device can replace the mouse, and is more suitable for the user to input characters and patterns by manual input, the improvement of the handwriting input circuit device has been rapidly developed in recent years. field of. Earlier handwriting input circuit devices replaced the mouse with a pen, and in order to improve the convenience of the user, wireless pointing devices (pen, mouse, pointing pad, etc.) and a tablet were usually used. The two replace the mouse, and the tip of the wireless pen usually corresponds to the left button of the mouse. Although traditional pen-type input products have been available for many years, similar products are focused on single-function applications such as drawing or Chinese input. Conventional electromagnetic induction systems are equipped with a tablet and a mouse or pen-type transducer / pointing device. In general, there are two modes for determining the position of a trace point on the surface of a tablet: one is a relative mode, and the other is an absolute mode. Normal mouse devices operate in relative mode when the mouse is on the tablet

Page 6 1220966 V. Description of the invention (2) The signal on the surface of the mouse is recognized by gliding on the surface. This pair is relatively tied to the surface of the absolute plate to reflect the method used to determine it. ^ η ^ ¥ 〇1.L ·, the computer system operates in the X and Υ directions using a sensor setting and the slider cursor mode. At another position, one of the target devices is new. The presence sensing technology of the cursor device is

The relative equipment that will be received in the signal board is the mouse's longitudinal device. If the absolute support for the electricity is lifted, it will be a sliding movement, forming a horizontal and horizontal direction. For example, the cursor's brain system is hostile. Digitally, it is generally a mouse input. It is a universal wireless finger device. Nowadays, the surface of the board is used for insulation, and the technology that it can only pass through corresponds to the vertical transformation. The target device, once moved to its digital signal, will change the position of the existing multiple sides. For the mode or the ancient 1220966 V. Description of the invention (3) Road device, which usually includes an electromagnetic pointer device (electromagnetic pointer device) and a Digitizer tablet (hereinafter referred to as tab 1 et). The electromagnetic indicator device has a battery therein to supply energy for transmitting related electromagnetic signals', and the electromagnetic indicator device has an oscillating line. Taking the electromagnetic indicator device as an example, when the pen tip of the indicator device is touched, a change in inductance will occur, thus causing the vibration frequency to change accordingly. Touch pressure The greater the pressure at the tip of the pointing device, the greater the change in inductance, and therefore the greater the change in the frequency of vibration. Therefore, the magnitude of the pressure applied to the tip of the pointing device can be known from the change in frequency. There are also two switch buttons on the side of the wireless indicator device. The engagement / disengagement of the buttons makes the specific capacitor in the oscillator participate / not participate in the oscillation, so the emission frequency of the indicator device can be changed. Why is the switch button pressed by the user pressed? Analog digital to detective lop), amplifier (amplifier ^), buccal ratio converter (Analog to Digital Converter; ADC) pen-to-speech. Similar to the traditional writing tablet's central writing area, is induced by: 2: : In this area, ★ In this area, the two-sided weaving of the circuit board is used to arrange the induction loops equidistantly in array. This ^ I. Uses two-axis electromagnetic indicator equipment; = Set = The emitted electromagnetic signal should be- The inductive loop and its layout design

The signal ’passes through the circuit; Guang Er f: the loop will receive the electromagnetic. Generally speaking, the traditional electromagnetic ::: standard equipment related information. 15. Explanation of the invention (4) When the inductive circuit 4 is inversely proportional to the square device, it will cause the receiving circuit of the electromagnetic field circuit to sequentially receive the range product of the signal circuit one by one in order to form more columns. Status mark. As the signal of the pointing device is closer, the loop is closer, just let and analyze the pointing device to set the coordinates. The number of loops is calculated by X and γ, and the intensity of the scanning signal transmitted by the electromagnetic finger back to the electromagnetic finger is induced. In addition, the induction axis array can be used to obtain the stronger sense of the standard equipment connected to the electromagnetic field. Calculate the distance sensing of the electromagnetic reception of the absolute blocks of the equidistant row of the circuit. Therefore, the circuit should know that the electromagnetic induction is in place. The magnetic field is strong and the distance is weak. In phase, the digital tablet will be located there. However, the electromagnetic field will be induced and the farther the circuit is from the ground, the induction will be induced. An induction connected to the micro-processing circuit increases the large area, and the other way is: In terms of, today's information products are moving towards high-speed processing and high-performance functions ^ 'However, the faster the processing speed, the easier it is to generate electromagnetics. Banquet banquet ^ Usually in specific occasions where the tablet is used, there are often external f bands around it, and the existence of digital products such as alum, so the traditional tablet is susceptible to interference with%, which is prone to misjudgment. For the commercially required digital tablet, the number of antenna arrangements will increase accordingly, and the number of furnace switches will increase. This results in the circuit board area of the tablet. There are ^ -limits, which make it difficult to make a $ Lu with a small-sized border area < ^ Here ', the inventor of the present invention provides a wireless-battery-less pointer device a ^ ^ ^ The electromagnetic induction system of the inductive loop and its 4 are configured according to an induction loop configuration table. induction

1220966

V. Description of the invention (5) Weimo in the circuit configuration table ^ Back to soft μ ,. The road layout should include several physical roads; Sdi; physical lnductive 1〇〇ρ), a plurality of baskets should be circuit (other Along the two-dimensional orthogonal coordinates (twQ_dimens iQnai H response loop system coordinates) distributed along the X-axis and γ-axis' direction, each of which contains a plurality of logical induction loops. For each of them follow the W eight logic, the system belongs to Response :: Phase :; Back sequence ;; From: Set ::; Inductor in the processor: On, so as to transmit electromagnetic signals. When wireless ..., electrical / private label equipment is within the range of the induction circuit, The helmet indicator device receives the electromagnetic sensor's emission by means of electromagnetic induction: ί ί; ί wireless-battery-free indicator device receives energy and stores energy '2 electricity = energy emitted by the device. On the other hand, electromagnetic The coordinate positioning program of the battery buckle device that includes induction sensors includes a global scan of the X and γ directions and its area scan program to facilitate sequential detection—the first signal with the highest voltage and the second signal with the next highest voltage. The second signal and a signal having the third largest voltage The three signals are processed by the internal circuit of the electromagnetic induction system and calculated by the micro processor to obtain an accurate battery-free setting of the K seatpost position. In addition, 'in control of the tablet system (digita 1 t ab 1 et) Cord-less battery-less pointer

Page 10 1220966 V. [Invention Description ⑹ '~ " "-device) There are different methods on the signal transmission and reception circuits in the prior art. One of them is "Position Detecting APparatus" as shown in the first figure, which is the US Patent No. 004,878'553, and the two ends of its loop coil (100pc〇u) are used Two separate analog selector switches are connected to control the transmission / reception of the signal respectively. At the same time, two other analog synchronous switches must also be used. The coil performs the transmission of Saki ratio, and the connection of the selector switch to the empty building door can be completed. Since each switch has an on-resistance (", impedan), when using the Cui Chi-like P gas M Xi + swallowing 'the value is ... two ί more days temple' means that the impedance in series is too much The power consumption is very low, and the resistance of 传 has to be small in / ^ impedance, especially, it will cause the wireless signal to go out of the pool; the tablet system will not be able to work; sufficient = electromagnetic energy. (0η) / Open f (Of f) action, because 1 jaw ratio switch is on, so when there are more analog switches connected in series, except that = the response time is longer for two pairs of major digital tablet systems], the circuit is limited. Can only send signals one way, so-called simultaneous 1 1220966

V. Explanation of the invention (7) In addition, in order to improve the shortcomings of the above-mentioned U.S. patents on the use of analog selector switches, the US patent No. 0 5,3 3 0,2 1 0 has abandoned the use of analog selector switches. Instead, use three state elements with logic element functions. The purpose is to use the characteristics of high speed response and low impedance when logic elements are on to improve transmission / Receive power efficiency to improve signal attenuation and response speed caused by too many analog selector switches. However, tri-state logic elements can only be conducted in one direction. Therefore, when performing transmission / reception, different logic elements and different paths must be used to execute. This will complicate the circuit and cause noise to rise and cost. Rising issues. 2. [Summary of the Invention] The circuit is transmitting / receiving η related / board music system loop coils and control power: transmission, / reception power application ±, can still be improved-. The control circuit caused the digital board system ", and, on the transmission / reception day, all the channel switches combined by the battery-less device-to-device technology were used to obtain the combined analog switches and tri-state components. -< Transmit / Receive Selection of Induction Loop. Cattle /: as a digital phase can also improve the power efficiency of the received signal outside the tablet system and the h2 control circuit, reduce the second = transmission between the private label equipment / digital ^ "Miscellaneous 1 a U at the time of transmission / reception of the cattle low > Sundial delta transmission

Page 12 Positioning System and Wireless-Without Battery: h 隹 隹 and increase ιζζυ ^ () 6

Response speed and other functions.

Road control i] :::: 7 series provides a kind of multi-channel switch combination, the signal transmission / reception system is connected to the field and wireless-battery-free indicator device switch and digital tablet di di, instrument for control The loop of the induction loop controls the induction loop; ::: ΐ: / with receiving selector 'except to simplify the battery-free _historical and effective improvement of the induction' loop and wireless, Λ number transmission / receiving power efficiency . Another main object of the present invention is to use the signal transmission / reception side of the switch control combination of the circuit control induction circuit 'V first and 1C of the wireless-battery-free indicator device as a digital office. The system uses a multi-channel switching power selection circuit. Therefore, during the loop signal transmission / reception period, the system can be switched by the channel: Yes-loop open. During the transmission of a specific circuit switch furnace, you can select a specific channel to enable the tablet system; into a closed induction circuit to make the selector selection experience, you can also select by channel This switched-on channel can be switched on, but ^^ ^ ^ ^ ^ ^ ^.…, Another signal transmitted by the battery and standard equipment. The present invention also has a main object.

Page 13 1220966 ------- V. Description of the invention (9) ----- The transmission / reception selector of the response circuit, Ϊ: Beyond the road, you can go further-. Step: Connected Λ to simplify the control of the signal return between the * s standard equipment / the internal induction loop and the signal-to-noise ratio of the wireless_no-power tablet system. The power efficiency of the receiver and the improvement of another main purpose of the present invention are a tablet system, which uses a switch to control the inductive feedback system to send / receive signals. , As the transmission period of the tablet, you can make t. When transmitting / receiving a signal, make a corresponding one of the specific channels on the transmission = two = select a specific channel in order to communicate with the induction circuit. During the transmission, the second = enough to conduct, so the tablet system: pair: connect with the conduction channel The sense of dagger loop, and thus energy. During signal reception, — ^ Electricity for transmitting electromagnetic energy = Correspondingly-the specific channel is selected at the receiver, and the communication between the two channels may be the same as that during the signal transmission. However, this is used to receive wireless-no battery The 4 different channels transmitted by the indicator device are used in the period of receiving the signal, and there will be one-, ', alum. In addition, the grounding state, "the source switch remains grounded." The reference potential of the received signal is kept at zero. The present invention proposes a digital tablet with a dual lightning method that provides an induction loop and uses: a channel switch combination circuit to control the induction loop to supply the signal between the target devices. N = pool line-no Battery indicator equipment, which is received by an induction loop: j 1220966

V. Description of the invention (10) Magnetic signal, and the magnetic signal of the residual library by electric power. —Multi-channel power on, to facilitate the launch-second power ^ AW Μ m m ^ 1, and & circuit, which is transmitted with a microprocessor, a smart phone and an inductive smart road / Receiving timing it ECG ^ also connected ^, as the tablet system is sending / receiving the first electromagnetic signal / ^ + + 41 induction loop to perform the switch combination circuit advancement-and ^ a house stone, δίι Bluff function. This multi-channel ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ controls the power switch on or ^ power supply signal timing to electrically connect the processor, a channel selector, which is in communication with a micro-controller. / Received time interval, the scan sent by You Lu (passed through the door I in accordance with the passage I pass; ^ shore back α 彳 4,, σ 狁, sequentially lead to a specific I α α should Send / receive signal on the road; it is combined with the inductance of the inductive loop 妯 ϋ R y and the pass-through switch to find out -corresponding, = connect: and according to the signal circuit of the channel selector, it is electrically connected to the passthrough This is electrically connected to the power switch / amplifier combination # ^ ,,, and one of them is respectively connected to the channel on the == dedicated signal time interval, which can form a number. Vi 2: 1, transmitted by the pool indicator device The second electromagnetic signal conversion function of the first magnetic signal amplification function-the position signal connection, and there is a ^ and amplification circuit and an analog / digital converter electrical ground signal conversion circuit, ff receives the signal to convert the function. -Pressure ground connection, with large circuit and an analog / digital converter There are eight amplifying the received radio signal conversion function of the analog .- /

Page 15 1220966 V. Description of the invention (ιι) «Digital converter 'is electrically connected to the position signal conversion circuit and the voltage circuit, and has the function of converting the position signal conversion circuit and the pressure signal! Signal function. -i ^ ΐ 迢 The switch combination circuit and the analog / digital converter are electrically connected, and are used to control the timing of the dung # /, bag, α $ n # & _ the timing of receiving and power supply signals, and providing scanning ( Channel Selection π ± Analog / Digital Converter ##) δί1's work, while calculating the digital signal according to the coordinates of the standard equipment 'Wireless-no battery means that the present invention further provides a supply method and multi-channel Switch group: 2 :::: two-way power supply-digital tablet system without battery indicator device :: induction circuit and wireless sending and receiving methods include: First, a receiving method at / 1, which transmits the control signal to start the signal. Transmission: The first cycle of the second cycle of the supply-transmission supply signal: \ ^ 雷 " Fu: 7 power supply signal, the power is turned on in the special three percent sequence of the power switch and control circuit combination) : And make these two switches connect the other two switches as open two induction loops—terminated to electricity—mountain ::, so the selector will be output accordingly—specific: through selection signal) to the channel; induction loop Into-closed loop specific channel, the sequence of the low potential of the first cycle "〇", CLP Power Element ^ response signal timing sequence power switch and control page 6 ιζζυ ^ () 6 V. Description of the invention (12) In the circuit combination, the current of the two induction circuits when supplying the signal is the signal of the indicator device; when the signal is transmitted so that the electrical space in the amplification section is provided, it is in the supply control signal electrical connection. The place provides a sweep to correspond to a loop to constitute a transmission of the other switch. The terminal is connected to the sequence of the high phase. The phase resonance electrical signal transmitter circuit source is supplied to control the low potential number, and the switch is used to ensure that the signal is closed. The magnetic signal specifies two switches (again, the other two switches are open). Do not connect to a ground point and a power source. This will make the ground point and the other end connected to the power source. The loop is reversed; among them, the frequency of the power supply signal is almost equal to the resonance frequency of the path, so that the maximum timing can be sensed to provide an amplifier enable / disable signal. It is in a disabled state; then, it repeats the execution according to the cycle of transmitting the time number. The reception of the signal is started in the reception signal period, and the timing of the reception signal in the embodiment and 0 is provided, and a power supply is provided to enable the power switch. And the control circuit combination are in a grounded state with the common contact; and the microprocessor is synchronized (ie, the channel selection signal) to the channel selector, and the channel conducts the specific channel, which will be connected to the induction circuit to receive A fourth embodiment of a wireless-battery-free indicator device The direction discussed in the present invention is one with a wireless-battery-less finger, a method of receiving a switch U induction circuit. In order to be able to ... "" The vastness of time, charge, and its message transmission / receiving have provided a detailed understanding of the present invention, which will be described in the following description of the road structure and signal transmission / reception: l22. 966

V. Description of the invention (13) In the detailed description of the traditional tablet system and the induction back, to avoid the damage caused by this: The preferred embodiment that is not described in the later results will be described in detail as follows :: J limit. The present invention can also be widely implemented beyond the detailed description. The scope of the invention is based on the following patents: " Therefore, the invention and wireless of the present invention include a micro-processing of transmitted transmissions to digital Inductive return signal power switch and supply signal and micro-zone interval number), No .; to connect, and make the electrical connection to the loop system circuit is convenient to a fixed magnetic signal power source In order to form a digital tablet that firstly proposes a combination of an extra bud A and an integrated switch to control the signal transmission / reception between the two sensors and the two-blood Z standard equipment, it is a device that can receive one sensor. ::: Electromagnetic signal, and store energy by electromagnetic induction to cry, 2 magnetic alum. —Multi-channel switch combination circuit, which is: a state circuit and the inductive circuit are electrically connected, & two: within the timing cycle of sending / receiving, choose one special: to receive the-electromagnetic signal and = 二 ΐ The combination circuit goes further-steps include:-it uses a transmit / receive signal and-^ to turn on or open the switch; a controller is electrically connected, and it is connected at Zhao Ban 4 / 通 迢 & Zheyi, _ _ _ x is in the transmission / connection of the tablet system, according to the scanning connection and a channel door issued by the microprocessor. Γ $ $ Transmission / connection based on the induction circuit. The combination with the induction circuit is based on the signal of the transit selector, the power-seeking modification combination and the amplifier circuit are not combined. One end of the combination is separately connected to the channel.

Page 18 1220966 V. Description of the invention (14) Electrically connected, the other end is electrically connected to a common contact, and can form a μ 2K signal in the time interval of signal transmission, and at the same time when the signal is received It is connected to the second electromagnetic signal transmitted from the battery indicator device. A thunderbolt ... is connected electrically to the multi-channel switch combination circuit, and there are :: circuits, large circuits and analog / digital force / converter Λ ground to analog / digital converter And there is a message to convert the amplified alum 5 tiger into a signal with pressure, there is a j-bit converter, which is used to convert the position signal; and ▲: 二 :: // has the signal to convert the position signal ^ 位置The analog signal converted by the road is converted into digital signal processing. ## is combined with the multi-channel switch combination circuit and analog / :. 一 微 "#_ 接 ， 可以 可以 控制 控制 / 接 #… and has provided The scanning signal (the signal of the power supply is also based on the number provided by the analog / digital converter = 5 tigers), the function, the calculation of the position of the device without a battery indicator. ~ Enter wireless-The present invention then proposes a method of planting people with loyalty. The transmission and reception methods include: f first, second transmission and reception control signals to start the second transmission and ... Timing of the transmission signal of the potential T and "I. page 19 1220966-1 'V. Description of the invention (15) Supply signal' sequence, medium, and conduction of the high potential in the first cycle of the power supply signal" The switch in the combination of the power switch and the control circuit, and this switch is connected to the power supply. At the same time, during the transmission of the signal, the micro processor provides a scanning signal (that is, the channel selection signal) to the channel selector to: And turn on the specific channel, this will make the induction loop-a closed loop, and supply the power to the sense is the same as the sequence of the transmission signal, and the power supply is second, low potential ". " The timing of the power switch and the control circuit: in the case of a person, the switch is open; 路 the timing of the transmission signal is also mentioned; ^ an amplifier enable / disable signal so that the amplifier circuit is in the disabled state ^ ^, =, According to this transmission time interval ㈣ power supply signal ^ signal timing and-processing ⑨ power supply signal timing-the first ^ of the receiving bit " 丨 " timing, so that the power switch and control circuit group The state of the open circuit in the month is "receiving, receiving at a low potential"; "1 switch protects 1 power supply signal timing sequence of the low potential 2 sequence and timing of the first cycle, so that the power switch and control circuit combination Second power supply: state ... to the processor during the receiving-receiving signal: second, to open a specific channel; and to receive the wireless place = and turn on the electromagnetic signal. The invention transmitted by the device proposes another and Ancient 4S · 744 rV A .Έ M, with k for the induction circuit bidirectional κ, κ 迢 组合 迢 switch combination circuit to control the index of the electric power supply reduction of the induction circuit ^, ... ,, 'stay-no battery page 20 1220966 I ... ............. 5. Description of the invention (16) = tablet system for signal transmission / reception in Bijian, including: ^ pool indicator device, which can receive a sensor The loop, and the second store energy to facilitate transmission-丄 = circuit and the induction '::: connection: connected to a microprocessor,-amplifier / receive timing cycle Λ = as the data system is transmitting and receiving the first electromagnetic = Choose one of the special induction loops to perform the transmission / switch combination circuit advancement ;;; Two electricity :: = Yes, the multi-channel switch's supply signal is used to control the ground connection, and it is connected to the digital cup ^,, and Scanning and spreading signals sent by the microprocessor's electrical processor, :: 迗 'receiving time interval 0, according to the micro-specific channel = selection signal), turn on the switch combination in sequence, which is connected with the: Signal, and the signal of a channel device, find out 1: = electrically connected, and select the channel that closes and controls the circuit according to the channel. The channel is combined with the two-way power supply. ϋThe amplifier circuit forms an electrical connection. -The inductive-end is connected to a bidirectional circuit. f: knife: combined with a pass switch Time zone for connection and transmission of signals = and = electrical connection, so that in the second magnetic signal, at the same time picking you up b / into a closed loop: and transmitting the Uth time interval transmitted by the first battery indicator device, receive Wireless-powerless and multi-channel switch combination lightning: electromagnetic signal.-Amplifier circuit, which is a function of magnetic signal amplification. Connected once, with a second circuit and analog / digital conversion% ° one-position signal conversion circuit , Which is connected with the electrical conversion of the amplifier, and has the function of converting the amplified signal to the signal of the 1220966 message on page 21. — The pressure signal conversion circuit and the analog / digital converter are electrically connected. Message signal t ': and:: Set signal conversion voltage;

I. Description of the invention (17) A signal conversion converter with a position system and an amplified electric signal, which is electrically connected to the processor of the conversion circuit, electrically connected to the signal, and has a battery-free indicator at the same time. The function of converting the 4-position signal conversion circuit and the analog signal of the pressure signal conversion into a digital signal. Switch combination circuit and analog / digital converter =. Μ controls the sending / receiving and power supply of 1 U.S.A. for scanning signals (that is, channel selection: digital signal provided by the ratio / digital converter, force =, calculation of device position. Back wireless-Benmoming receiver A multi-channel switch M circuit with control circuit is provided. A method for supplying power to the power supply is provided. The transmission and reception method of the induction loop of the power supply loop includes two methods: The system uses the example to: start the signal transmission and provide a power supply at the time of receiving the control signal; the signal timing of the potential "1" is supplied by the timing power of the high potential "r" 7 should be specific two switches in the first cycle of the signal, and the combination of this and the control circuit will make the induction circuit one; 3: 3: the power supply and the-ground point and the microprocessor synchronously raises the source And the other end is connected to the ground point; to the channel selector, the signal (that is, the channel selection signal) corresponds to a specific channel and conducts the specific channel

Page 22, 1220966 V. Description of the invention (18) This will make the induction loop constitute a closed response loop; secondly, it is also the same as transmitting the signal 电源 and supplying power to the low potential of the first period of the sensing sequence " 〇 " In the timing sequence and in the introduction, the other two specific openings in the circuit combination when the power supply signal is turned on are "on" and "control-ground point" and "power". These two switches are respectively connected to the other end and connected to the power supply. High power 2 o'clock-Terminated to the ground point and the current phase in the induction circuit will be reversed. In low-potential timing, the rate is almost equal to the resonance power of the indicator equipment; I, the signal with the largest frequency of power supply signals, · When transmitting the signal, the frequency is ^ so that the energy can be sensed / disabled so that the amplifier circuit can also provide an amplifier to cause the power supply and / or symptom status within the transmission time interval; then, according to the received signal During the period, the cycle provided is repeated and executed. In the reception, the embodiment is the tenth, that is, θ sounds the control signal to start the signal, and describes the area, e. 疋 is at a low potential " 〇 " Connect in the signal timing circuit combination: = J: Signal 'to make the power switch and control power from the state of the micro controller: ^ To the channel selector, correspondingly output: 2: two ... that is the channel selection signal ) Channel 'This will make the induction loop; into a message: 2 Yun Yatong through the telecommunications news transmitted by the specific battery-free indicator device. U 妾 收 -Wireless-1220966 ¥ V. Invention Description (19) I— ^ First, please refer to the third diagram. The third diagram is a schematic circuit diagram of a specific embodiment of the present invention, including a wireless-battery-less indicator device 10 (c〇rd less battery less pointer apparatus), which can receive digital The electromagnetic energy emitted by the inductive circuit (inductive 1 ο 〇p) 8 0 on the board system, and after the internal energy storage circuit stores electrical energy, emit another electromagnetic energy. A multi-channel switch combination circuit 20 (multi_channel switeh sets), which further includes a power switch and control circuit combination 21 that can be controlled by the transmission / reception sequence; a channel selector (channe: l… two: wide, whose coefficient bit system is in the transmission / reception time interval) Inside , According to the global scanning signal sent by the microprocessor (that is, the global channel is written to be turned on and transmitted / received through the induction loop, the other two = according to the area scanning channel sent by the processor to select the flood number), for specific Some channels use the Uhannel to receive signals for the 执 ,,,, and 4 / Flying Channel Extension Switch Combinations;-the general message e, find a corresponding open two channel selection status. An inductive loop combination 80,开关 _ 俨 The switch is electrically connected to the ON 23, and the other-is connected; in the time interval of the combined signal with the channel switch;-the closed failure point is formed so that it can also receive the time interval of the signal when transmitting Central Asia transmits electromagnetic energy in the same way as the line-no-t-pool indicator device i 〇, which forms a closed loop and receives two. It has a work V, 'b that amplifies the received signal. An amplifier circuit Sad: The enable / disable control signal is controlled by an amplifier and its enable / disable status controls the timing blood transmission # / # ^. For control, this 1 α 40 :: Receive control signal is similar. -㈣1 control pressure signal conversion

On page 24, "the amplified received signal is converted into a signal conversion circuit 1220966. V. Description of the invention (20) Circuit 50 0 'It is the amplified received signal bit converter 60, which is the position chain ° ^仃 Conversion. One analog / digital conversion: analog signal conversion output by the road: digital and: ouali signal conversion, is used to control transmission / reception and electricity: .-Microprocessor 70 provides scanning signals (ie channel selection, … The sequence pulse, and the digital binary input line provided by the converter is the same as the calculation of the…. Ordering the wireless-battery-free indicator device. Then, please refer to the fourth figure. The cloth (that is, the timing pulse is at a high level) The potential is "wide", as shown in the second phase of the 24th anti-newsletter. The power supply signal " B1, which is not shown in Figure 3 and Figure 4b, is in the first detail & > + + That is, 1 "), when the stem- 闰 is a potential of 咼 in the period of μ (Η 0 q ^, the power switch and control circuit combination 2 in the figure 1 will be defied广】 The state of the electric power e), the power switch and f, 21 will provide the factory. Source (vcc) to the inductive loop; and when I 22,% Λ B " is at the low potential of the first cycle (that is, "〇"), then the switch 211 in the power switch control circuit 21 in the second figure Will maintain the state of open circuit (10 ^ en), at this time, the power switch control circuit 21 cannot connect the second source (VCC) to the induction circuit. Then, the signal T is transmitted and executed repeatedly according to the time interval. The supply signal B is determined by the resonance frequency of the resonance circuit 10 of the indicator device, so that the largest signal can be sensed. Take Figure 4a and Figure _ as examples. Within the interval, a total of eight cycles are executed, and the eight cycles are for illustration only and not limited.

Page 25 1220966 V. Description of the invention (21) When in the transmission time interval, the timing of the source supply signal "B", as shown in the fourth J: b one, it will be electrically connected / opened. Here, I cried before: 'Change ^ channel selection to channel selection ㈣ ;; ^^ first-signal (switch, and connected to the connected induction circuit 80 to form one: = specific channel source (VCC) can pass through switch 21 The second way: the power will be VCC) ^ S1J # ^ ^ 8〇 (With this particular feeling of frustration, defeating Germany ,, and so on, so that the digital tablet can be unified, in the pass against Japanese Shimen II M k Lu Chuanyu's electromagnetic signal is transmitted to the adjacent space. In addition, in the K-day interval, the power supply signal is amplified due to amplification, but this one is being transmitted; there will also be a signal received at both ends!! In order to avoid this unnecessary energy, I will enlarge the stone to enable / disable the control signal, 'C " will isolate the amplifier in addition to unnecessary reception signals. 4 ^ Ε! Fa1 (gp ^ ^ ^ ^, , House supply package), as shown in Figure 4a and Figure 4b, then regardless of the electric /: two 'should be in the high potential Risi (", ) Or low potential (πο ,,), the switch 211 in the power switch control circuit 21 in the two or two figures will be in an open state. S ^ Informant = In the time interval of receiving the signal, due to the power switch and The switches 2 and 11 in the control circuit are all kept in an open circuit (ο pe η) state, so: the power supply (VCC) will be supplied to the induction circuit 8 at the same time: from = 7 no ^ A indicator device 1 0 can be During the aforementioned transmission signal, inductive reception

Page 1212966

Sub-storage-an electromagnetic energy transmitted via the induction loop 80. Therefore, after scanning the magnetic signal, and then transmitting another signal and receiving the electromagnetic signal scan, Jf :: 80 performs the electromagnetic transmission scan ", which will receive the signal; = description :; The induction circuit transmits ^ ^ induction circuit to receive the electromagnetic signal with the induction circuit. The signal = receives the electromagnetic signal and then transmits another electric battery indicator device 10 ^ ^ Helibao magnetic alum number to the induction circuit. After the transmission to the magnified Thunder Thunder-Yitang a & ^ Road 0. The tablet system will be wireless

… 'No. After receiving the signal transmitted by 10 and processing it by the amplifier circuit 30, it will be sent to the position signal conversion circuit (position signai CDnvertlng circuit) 4 and the pressure signal conversion circuit signal conversion circuit 5) In the middle, the converted signals are converted into digital signals by an individual analog / digital converter 60 (anal〇gt〇digitai c ο nverter, ADC), and then sent to the microprocessor 7 〇, and calculated by coordinates And judge, calculate the precise position of wireless-battery-free indicator device 10 and related status information. In a specific embodiment of the present invention, a multi-channel switch combination circuit 20 is used instead of the analog switch and the tri-state gate. Its | · is the on-resistance of the (analog) switch manufactured by the semiconductor process (,, 0Nν · impedance) can be reduced to between 0.25ohm and 10ohm, so when the switch 211 is in the transmission time; when the interval is turned on, the power (VCC) can be directly passed through the analog switch 2 1 1 and the channel switch combination 23 to change the current Sent to the induction circuit 80 for sending

Page 27 1220966 V. Description of the invention (23) Shoot an electromagnetic energy. Because the on-resistance of the switch 2 1 1 in the multi-channel switch combination circuit 2 〇 is very small compared to the on-resistance of the analog switch in the conventional technology, the voltage drop (on voltage dr op) generated by the on-resistance is Relatively small, so most of the voltage can be sent to the inductive loop 8 0 ′, so that the power efficiency of the transmission is higher than that of the conventional technology analog switch circuit. In addition, the circuit configuration is simpler and saves space compared to the prior art. At the same time, the number of the channel switch combinations 2 3 in the specific embodiment of the present invention is not limited, but is determined according to the size of the tablet and the design of the induction circuit 8 0. In view of the digital tablet described in the specific embodiment of the present invention Although the system can improve the power efficiency during transmission / reception, simplify the combination of power switching and control circuits, and reduce the space occupied by the circuit, but in the control of the timing of the power supply signal, the power can only be turned on at a high potential (Vcc) is conducted to the induction circuit 80 for transmitting electromagnetic signals. Therefore, in order to improve the power transmission efficiency of the digital tablet system, the present invention further proposes a preferred embodiment, which is to improve the power switch and control circuit combination 21 in the foregoing specific embodiment, so that it can transmit signals During the period, a specific channel can be selected by the channel selector 22 having a selection function, so that some specific power switches 2 1 2 2 1 4 are powered by the high and low levels of the Su Ying signal. During the period, power can be supplied to a specific induction circuit. Therefore, the specific induction circuit of the tablet system is in the form of a high voltage and a low voltage during the power supply signal. + The flow phase is opposite, so it can provide stronger for a specific induction circuit 80. =

Page 28

1220966 --- ^ -------V. Description of the invention (24) Electromagnetic energy power supply (foreign circuits will be described in the fifth figure below). During the period of receiving the signal, = the channel selector 22 can also be selected to enable a specific channel 2 3 corresponding to one of the universal channel 2 2 to be turned on during the period of receiving the signal, for receiving Wireless—Another signal transmitted by a batteryless indicator device. However, the channel 2 3 being conducted may be different from the channel being conducted during the transmission of the signal. In addition, during the period of receiving a signal, a specific power switch is kept grounded, so that the specific induction circuit forms a closed circuit. This level is opened in the middle of the fifth source of the figure. This sequence of the power factor is low, the road, the potential is 4 high η 11 η 2 when In, its double-fire is called, it can be closed to flow U open The combined power of the code is shown in the figure of R. The network of R—the network of t: ¾ the middle should be 2 ¾ electricity ο 1 total electricity consumption within the house {Fruit make system < 2 strict original € 4 Greek example combination area u Between the group controlled by the U and the control group of JL Electricity t ί In the middle and the real road W An example of Guan Jiadian / U Kaikai sent to the real source Mingzhuan M) u body electricity issued in 1! According to the figure, the π 1 phase receiving position will be connected to the high-voltage control system and 3¾ αβ. I ^ The circuit diagram of the kappa example and the circuit shown in the fifth example In the diagram, except that the power supply M is different (that is, 21 and 21), the circuit power is not repeated here, only the changes are described, and the electricity and electricity are described in detail at first to simplify the verbose: 1220966

Assume that the tablet Li Association y-M.. _ 予 ', first during the transmission signal (that is, the transmission / reception signal = sequence is at a high potential M "), as shown in Figure 4a and Figure _, in the power supply: The timing of the signal is at the high potential of the first cycle "1", then the 2 1 1 and 2 1 3 switches in the fifth diagram, $ power switch and control circuit combination 2 丨 〇 will form a conduction (C 1 〇se ) State, at this time, the switch 2 1 1 is connected to a power source (vcc) and the switch 213 is grounded; however, the other two switches 21 2 ^ and 21 4 are kept in an open state (0pen). Next, when the timing of the power supply signal is at the low potential of the first cycle, "o", then the two-way power switch and the switch 2 in the control circuit combination 2 in the fifth figure 2 i and 2 1 3 are two switches. It will remain in an open state, and the two switches 212 and 214 will be in a conducting state (c 1 ose). At this time, the switch 2 1 2 will be grounded, and the switch 214 will be connected to a power source (vcc). Then, according to the cycle of the power supply signal timing within the transmission time interval, it is repeatedly executed. From the above, in the preferred embodiment of the present invention, the bidirectional power switch control circuit 2 丨 0, whether it is at a high potential or a low potential at the timing of the power supply signal, will cause the switch to be turned on and a power source. (VCC) and a ground point connection. Similarly, as shown in Figures 4a and 4b, for example, a total of eight cycles are performed in the transmission / reception time interval, and these eight cycles are only for sound indication and are not limited. ——., ~ Thinking… ¥ While transmitting the time interval of the signal, the microprocessor sends out the scanning (channel selection) signal, and sequentially selects the corresponding switch via the channel selector 22, so it will be connected to the sensor. Circuit 8 〇 forms a closed circuit

1220966 V. Description of the invention (26), in order to conduct the power supply (VCC) to the induction circuit 8 through the bidirectional power switch and control circuit combination 210 and a corresponding switch, so that the tablet system can transmit electromagnetic signals to adjacent spaces. in. For example, when the tablet system is transmitting a signal (that is, the transmit / receive signal timing is at a high potential "1) 'and the power supply timing is at a high potential in the first cycle",, ^ f, J «^ ^ 10 t ^ 211 ^ = Λ 2 0 S〇 state, at this time 'switch 211 will be connected-power, (vcc), and switch 213 will form a ground, 1, through the induction loop to switch 21 3, so the switch 2U and The switch 213 and the induction circuit will form a closed circuit. And then when the power supply is empty, the low potential of the bidirectional cycles in the fifth figure " 0, " The switches m and 213 will control the circuit group 521. The middle and 2 1 4 switches will form a state of conduction, 0Pen), and 2 1 2 M2 will form a ground and a state of two (ClOSe). At this time, the switch 212 and the switch 214 and the induction circuit = 应 成 = To the switch, so the thunder in the switch transmission time interval (loop. Then, as described above: In the circuit combination 21 0 : Off and control. Polarity of the closed loop formed by potential suppression; = constitutes a closed loop, and the sequence of high potential or low power factor at this time $ The tablet system of the present invention can be used regardless of the period of the power supply signal

Page 31

2 electricity; = in the adjacent space, so a larger transmission power can be obtained. It will also send one: ί ί :: Noise interference. Similarly, the microprocessor is in a state where the amplified state circuit 3 〇 will be isolated during the stationary period r η · ui and Ge Λ bl, so as to isolate unnecessary The received signal level is set digitally during the signal reception period (that is, the signal timing is in the low order at the 'Your 4: 3 and Figure 4', when the power supply signal: the high potential of the cycle (ie "i" , The double two in the fifth figure], the switches 211, 212, and 214 in the switch and control circuit combination 210 are in an open circuit (〇Pen) state, and only the switch 213 is closed and connected: ; And when the timing of the power supply signal is in the low period of the first cycle = ie), then the two-way power switch and control circuit in the fifth figure, '> 1 0' still only the switch 2 1 3 is on ( c 1 〇se) and connected to the ground point, 5 and the switches 211, 212, and 214 will still remain open (叩 ⑼) sorrow ', and then, in the same manner, within the receiving time interval-the cycle of the power supply signal timing τ f repeats execution, that is, upon receiving no-wire-no-battery finger ~ 1 ^ 0 the emitted electromagnetic energy, the power supply switch 213 in the signal | order of two high-potential and low potential period, remain grounded since the wireless state - no battery in the pointing device during a transfer signal 10,.

Page 32 1220966

5 ί ϊ 4 owe the electromagnetic energy transmitted by the induction circuit 80, and can emit another electromagnetic energy at the completion of the residual storage = service. From the fifth figure, it can be seen that after Zhao Huo # ⑮ 、 田 后 'can find the complex signal with a larger receiving signal ^ ^ t t2, so the complex receiving signal with a larger number of electromagnetic signals can be induced back ^ f line—the capacity of the battery-free indicator device 10 is from b, σ, σb) This is the inductive reception of the plurality of induction loops, which are time-division ^ = amplifier circuit 30. After the tablet system receives the signal transmitted by the wireless battery-free finger ζ ^ and processes it through the amplifier circuit 30, it is combined with the position signal conversion circuit (p0siti〇n signal (nverti ^ cirCult.) 40 and pressure signal. In the conversion circuit (pressure A Ver VII ng C i rcu 丨 t) 50, the inductive signal is converted into 60 (anal〇gt〇 digital converter; 2 ...) into digital signals through individual ΑΓίΓ ^ ratio / digital conversion, It is sent to the microprocessor 70, and the precise position and related status information of the wireless-battery-free indicator device are calculated through coordinate calculation and judgment. In the preferred embodiment of the present invention, a multi-channel switch group ^ circuit 20 is also used instead of the analog switch and the tri-state gate. The purpose is to reduce the on-resistance of the (analog) switch manufactured by the semiconductor process-which can reduce — Therefore, when the bidirectional power switch 21 is turned on during the transmission time interval, it can form a closed path with the induction circuit, so the power (vcc) can be directly passed through the turned-on switch = switch combination 2 3, and the current is transmitted to The induction loop 80 is used to emit an electromagnetic energy. Because the on-resistance of the switch in the multi-channel switch combination circuit 20 is very small compared to the traditional analog switch impedance,

Page 33, 1220966 V. Description of the invention (29) =…, so most of the electric potential periods can be returned = high-potential and low-sequence power efficiency of the sequence than the traditional analog = ㈣, so the In terms of configuration, it is also 5 times more than the previous technology alone. In the embodiment of the circuit, the channel switch combination 23 of the invention is determined by the size of the specific bit plate and the design of the induction return. It depends on the number of wireless-battery-free devices. Signal; 'Position board system and two multi-channel switch combination circuits with bidirectional transmission / reception function t make use of electricity: number ::: control channel of the power supply during transmission f' receiving signal to correspond to The number of channel selectors: m: can be turned on at both low and high potentials. Therefore, the board music system can form a closed during high and low potential cycles: should; The induction circuit provides a power source for transmitting electromagnetic signals. During the period of receiving the signal, the red two selector 22H is selected, so that the corresponding switch 22 3 corresponding to the non-selector 22bis can be turned on to receive the wireless-battery finger, which is transmitted by another A signal. However, this channel that can be conducted may: In addition, during the reception of the signal, there is a special power switch that keeps grounding in order to

Page 34 1220966 V. Description of the invention C30) Keep the reference potential of the received signal at zero level. As described above, the present invention can meet the economic benefits and industrial applicability. Of course, the present invention may not only be applied to the induction circuit of an electromagnetic induction system with a battery-free indicator device, but also may be used in any inductive coordinate positioning method. Obviously, there may be many corrections and differences according to the above ::. Therefore, it is necessary to understand at d :, in addition to the detailed description above ::, Mingyun can be widely implemented in other embodiments. & In addition, the above is only an example of the patent application for the invention = the embodiment, and is not intended to limit the equivalent modification completed below] or = it is within the scope of the disclosure. — ≫ Fu, should be included in the following patent application 1

^. 1220966 Brief description of the diagram 5. [Simplified description of the diagram] The first diagram is a schematic circuit diagram of the prior art; the second diagram is not a circuit of another prior art; FIG. 4 is a schematic diagram of a circuit according to a specific embodiment of the present invention; FIG. 4a is a schematic diagram of a power supply signal I according to an embodiment of the present invention;

I j

I! Figure 4b shows a transmission / reception control signal according to an embodiment of the present invention, where Tx is a transmission period and Rx is a reception period; and Figure 4c is a view according to the present invention. The schematic diagram of the amplifier enabling / disabling control signal in the embodiment; the fifth diagram is a schematic circuit diagram in the preferred embodiment of the present invention; the representative symbols of the main parts:

Send / receive control signal contact A

Power supply control signal contact B 1220966

The diagram briefly explains the amplifier enable / disable control signal contact C. Wireless-battery-free indicator device 10 Multi-channel switch combination circuit 20 Bidirectional power switch and control circuit combination 210 Power switch 211, 212, 213, 214 Inverter 2 1 5 a, 2 1 5 b, 2 1 5 c AND logic gates 216, 216a, 216b, 21 Power switch and control circuit combination 21 Channel selector 22 Channel switch combination 23 Amplifier circuit 30 Position signal conversion circuit 40 Pressure signal conversion circuit 50 Analog / Digital Converter 60 Microprocessor 70 Induction Loop 80

Page 37

Claims (1)

1220966 vi, 1 · of the pool Multi-connector or multi-connector πα combined patent application scope-"A kind of multi-channel, switch combination circuit to control the signal transmission / reception of digital devices between the index circuit of the digital tablet is no electricity-one wireless-no electricity also The indicator device receives an inductive response: a first electromagnetic a 5 tiger, and a second electromagnetic signal transmitted from the electromagnetic induction storage;. M is convenient for transmitting a multi-pass integrated circuit, which is connected to the circuit and the The induction circuit is electrically connected. With ==,-to enlarge the sending / receiving timing cycle, select "'', the tablet system will send / receive the first electromagnetic specific channel of the induction circuit to execute the channel switch combination circuit. The function of the second electromagnetic signal, the optional, and the step includes: a power switch and batch generation 丨 receiving sequence and-power supply library gas 浐: 2 combination 'It is through-transmission / open circuit; 4 heart "sequence to control -The power switch is turned on and a channel is selected p, 1 is electrically connected to the microprocessor in the tablet 2 of the tablet system, and the scan sent by the device (channel = receiving time interval 'according to the micro channel and The induction circuit selects the signal 'sequentially on-specific-channel switch; and: connects to the Λ signal ;, Γ, and according to the channel selection such as ίτ' is electrically connected to the induction circuit, and makes the A specific channel fish number, find a corresponding specific remote circuit electrical remote connection, 〃 power switch and control circuit combination / amplification ^, and an induction loop group of people, electrically connected, another One end is respectively electrically connected to the time interval 2 f of the signal sent by the channel switch group, and a total of contacts are electrically connected, so that a closed loop can be formed at τ ′ and the first 1220966 β is transmitted. At the same time, in the receiving day _ day interval between the received M + battery-free indicator device and the 'receiving the wireless one connection, it has to receive the following:; H: the channel switch combination circuit is electrically ground-position signal conversion Electrical d magnetic signal amplification function ;, digital converter is electrically connected, and ^ = function with the amplification circuit and an analog / signal signal; /, there is a bit pressure signal conversion for the amplified signal Thunder The digital converter is electrically connected, and the function of the m amplifying circuit and the analog / force signal is to convert the amplified signal into a analog / digital converter. 1 The pressure signal conversion circuit should Position signal conversion circuit and circuit and the pressure signal conversion circuit ^ Dragging device: the function of converting the position signal; the analog signal converted by Tun Road into digital / digital: processor 2 =; second line of supplied signal None, the digital signal provided by the converter, into the P ..., electrical / also know the location of the equipment ~ Calculate ---… 2 · As described in the scope of the patent application for the first one, the road control induction The circuit and wireless-battery-free indicator set ^ = a digital tablet system with a combined power switch, in which the "signal transmission / reception selection" signal includes a global scan ^ "scan" (channel riding 5fan and An area scan signal. izzu ^ bb VI. Application for Patent Scope 3 · If applying for Qingwei's patented Weilu control induction circuit :::-a digital tablet system with a multi-channel switch combination: also with Yidian J ^ The channel switch 2; Γηpass) The size of the sensor and the sensor 4. As a digital tablet system described in item 1 of the scope of the patent application, it can be directly connected to a remote connection. ： Electrical: Inductive loop combination is electrically connected to a total of 5 · —Multi-channel switch combination circuit control | Digital tablet system of battery indicator equipment Transmission plate 2: ^ road and wireless-no receiving method includes: receiving method, the transmission And during the transmission of the signal: First, provide a high potential "1" ▲ one in the power supply response signal timing first yin #, operation signal timing and sequence; i period of high potential "Γ is turned on when The power switch control circuit switch is connected to a power supply and the other switch is connected to 3. One is turned on. One is transmitted by a microprocessor to the signal t '(channel selection) signal to the channel selector. A specific communication should be given out. 2210966 > \ \ 14- —A. '一-一 "• -'_, must ~ ^-^ · one-one, one .... 3' __ A凊 Patent Scope—One and One Induction Loop 様 & 1 Two switches supply the power to the stele ^ closed loop 'and transmitted by the aforementioned-electromagnetic signal to adjacent empty loops to enable the tablet system to function佴; S. Its t is also during the transmission signal period and provides a timing of the low potential τ at the first cycle of the power supply and the timing of the signal; the electric source turns on a power switch and > Health 丨 + Μ & 人 + 关Among them, the switch is connected to the other two switches in the ground, and the amplifier is enabled / removed. The% connected to the power source is in a disabled state; and the sfi number is used to make the amplifier circuit perform the transmission within this period. During the period of receiving the signal, Lei Yuan: repeated the execution with the supply signal; — at the timing of the receiving signal in the ESC 徂 {at the low potential " 〇 "; the timing of the power supply signal-the high potential of the first cycle "丨 " At this time, the state of the power switch to control φ h · The three switches in the circuit A of the response circuit remain open-circuited, and the two-to-four-point, ground-contactable switches remain conductive; the state of the open circuit causes :: [::: wide three switches to remain conductive; "% The contact can be grounded. The switch is still maintained: for the second, provide-sweep, industrial V through the specific channel; and μ corresponding to a specific page 41 lzzvyoo 6. Application scope Signal receiving the electromagnetic 6 emitted by the wireless-battery-free indicator device — a tablet system with a multi-channel switch that provides induction, circuit control, induction loop, and I and power supply 7 '^-/ ,,, Signal transmission between battery indicator devices / wireless-no battery phase economy # 彳 很 y send one 帛-electromagnetic signal, which is also connected to 11 ow-a second electromagnetic signal transmitted by the induction circuit; ', by-electromagnetic induction storage Electricity to facilitate A multi-channel switch combined with lightning technology, # / t cry Lei Qinnai is imaginary, the η circuit is connected with a microprocessor, an amplification circuit and the induction circuit Thunderman ^ Within the period of eight loops / reception, Select one ^ ^ to receive the first electromagnetic signal and the first Λ, the old induction loop performs the transmission / connection combination circuit further-step π package; ... the function of the signal, 1 mysterious multi-channel open a bidirectional power switch and control circuit A combination, which controls the conduction or open circuit of the switch by a transmitting / receiving signal and-, and a power supply signal; and, a selected state, which is electrically connected to the microprocessor, In the transmission / reception time interval of the tablet system, according to the scanning (channel selection) signal sent by the microprocessor, a specific channel is sequentially turned on and the signal is transmitted / received through the induction circuit; A combination, which is electrically connected to the induction circuit, and finds a corresponding channel according to the signal of the channel selector, and electrically connects the channel with the power switch combination / the amplifier circuit; and Page 42 丨 & Scope of patent application_ One inductive circuit is connected electrically, and the other — ,,, 3, one end is electrically connected to the channel switch group, respectively: The time interval between the bidirectional power switch and an amplifier to electrically close the loop and transmit the transmission signal can form an interval to receive the wireless-on-magnetic signal 'while receiving the time magnetic signal of the signal; 7 ..., pen pool indicator equipment The second electric-amplifier circuit that is emitted is electrically connected to the multi-channel switch combination circuit, and has a one-position signal conversion mine that amplifies the received second electromagnetic signal. ^. Therefore, the digital converter is electrically connected and presented; the amplification circuit and the function of analogue / set message consumption #have a bit-pressure signal conversion circuit for the amplified signal, which is related to the The digital converter is electrically connected to display the function of the right analog signal and β analog signal / force message; the amplification signal is converted into an analog / digital converter that has an analog / digital converter. The pressure signal conversion circuit is electrically connected to gg I #, + Μ η > r 丄 圯, and has the function of converting the analog signal converted by the position signal conversion circuit and the I pressure signal conversion circuit into a digital signal; a microprocessor , Which is electrically connected to the multi-channel switch combination circuit and the analog / digital converter, and can provide signals to control the transmission / reception and power supply, and has the function of providing scanning (channel selection) signals. The digital signal provided by this analog / digital converter is used to calculate the position of the wireless-battery-free device. 1220966 ... VI. Scope of patent application ---- ^ described in item 6 of the scope of patent application-a kind of battery-free indicator setting; with: = = control induction circuit and Λ: 7, 发出 issued by the microprocessor The received tablet system knows the tracing signal and an area scanning signal. (Optional) Flooding includes a full range of 8. As described in item 6 of the scope of the patent application, the multi-channel human power supply with eight ridges for the induction loop cone and battery-free indicators between the devices :: road control induction loop and wireless ~ This channel selector pin group: = tablet system, where the relationship between the personal / / 〇 number (m) and the channel selection Yu M & II :) is determined by the foot < a again . . The one described in item 6 of the scope of the patent application of Jiu Zhuoying has a multi-channel switch combination circuit controlled by two, two, and source sources to control two or two sensors and a thin dual circuit;: J indicator signal transmission / reception digits between devices; circuit Contrary to wireless ~ sexual interaction. The current in the closed loop formed during the break: 1 · A type that has a two-way mine that provides an induction loop, a circuit that controls the induction loop and provides a return path, a 1-channel switch group, and a battery-less device. Source, supply method, and the transmission and reception methods include: Page 44 1220966 VI. Scope of patent application First, provide a pass and make one of the two open loops terminated with a micro (channel selection) signal and turn on the specific power supply to the second. One week switch, and the circuit should be implemented according to the disabling. After receiving and providing a response signal, make sure that the switch is turned on so that the two power switches are connected to the electrical processor number to the communication channel respectively. The low-power on-off switch provides an amplifier and time zone status; this transmission is at a high potential " 丨 "-one cycle, the timing and connection of the lightning transmission signal-the magic will open two sources and the other end is connected to the $-connection Location, so that-to pass to the inverse 1 and connect to this ground point; provide a trace at the beginning of the election to make the induction circuit constitute a fixed path; fight the closed circuit, and send the signal period and the timing of raising the potential "0"; 1 In the combination of power supply and control and control circuits, do not connect to the-ground point & a power supply feature: two points and the other end is connected to the t source ,; The power supply signal period in the amplifier circuit is repeated, and the signal period is repeated for a low-power sequence; the power switch and the state of the microprocessor are in the ground state. Signal timing and power control circuit combination is electrically connected to the common contact. Page 1212966 Sixth, the scope of patent application (channel selection) The signal selects the channel and leads to the specific channel to form a specific channel. The receiving-narration channel makes the induction circuit form a closed circuit; ',,,,,,,,,,,,, and `` quan' 'described in item 10 of the electromagnetic signal bidirectional electrical circuit emitted by a battery-free indicator device-a circuit with a dual-channel switch group that provides an induction loop, an induction loop, a circuit to control the induction loop, and a tablet system ：: between source, supply method, and line-battery-free indicator equipment, when the power supply and receiving method are used, the channel switch is switched by the channel during the transmission signal timing period = §fl 5 when the tiger timing is at the same potential, the induction loop A closed loop is formed by the pass combination. Two-way power: ^ The method for achieving the 1st item of Li Li—a multi-channel switch combination circuit with an inductive loop to provide an induction loop to control the inductive loop and provide a digital board system and a σ packet source, and wireless—None The method for transmitting and receiving between battery indicator devices, wherein during the transmission signal timing period, when the z = power supply signal timing is at a low potential, the induction circuit is combined with k-channel switches to form a closed loop. Two-way, a method described in item 10 of the scope of patent application with a multi-channel switch combination circuit that provides inductive loop induction, controls the induction loop and provides a digital tablet, a two-way power supply method, and a wireless-battery-free indicator system Transmission and reception method, wherein during the timing of the transmission signal Ϊ220966 丄 ^ ---- Applicable patent scope ’: a room’ The power supply signal is at high and low potentials. ^ ^ I © ^. In the middle of the load, the direction of the current in the induction is opposite. As described in the scope of the patent application No. 丨 0-a method of supplying induction circuit = a multi-channel switch combination circuit to supply power to control the induction circuit and provide a bidirectional power supply of the response circuit and a wireless-battery-free indicator board The transmitting and receiving method of the system is that during the time sequence of the received signal, no matter whether the time sequence of the power supply signal is at a high potential or a low potential, the induction circuit forms a closed loop by the channel switch combination to receive the no, the no spring The first electromagnetic signal emitted by the battery pointing device. · Σ As described in item 10 of the scope of the patent application, a multi-channel switch combination circuit that provides an inductive circuit ^ to the power supply controls the inductive circuit and provides a 1-circuit bidirectional power supply method and a wireless-battery-free indicator device The gray = board system transmission and reception method, in which the frequency of the power supply signal and other wireless-battery-free indicator equipment, the resonance frequency of the soldier's vibration circuit is almost the same: to induce the largest signal.