JPH02500061A - remotely recallable storage - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Toyo recallable storage device The present invention relates to a data storage device in an integrated circuit storage device, and in particular to a wearable article or device. i.e. enables remote storage and reading of data regarding product characteristics or parameters. The present invention relates to an electronic circuit that facilitates the use of machine tools. However, the present invention is not limited to any type of storage device. It should be understood that it applies broadly to storage of data relating to articles or products. It is possible.

In semi-automated factories that use machine tools to produce products, machine tool bits are It is recommended that you polish or replace it after a certain amount of use or after a certain number of operations. Normally, a certain number of uses and a certain number of operations of the bit as described above will result in no resharpening or This is a rough indication of when the bit has worn out enough to warrant replacement.

However, it is difficult to accurately record the usage time and number of times a particular bit is used. This is not always practical and is therefore usually not done regardless of the actual state of wear on the bit. Bits are reground or replaced after each period of use on a machine tool. this is Obviously it will be very expensive.

According to one feature of the invention, multiplexed data and suitable independent transmitter circuits are provided. An electric field coupling device that combines the timing signals of the a demultiplexer that demultiplexes the signals and supplies them to a data storage device. A remotely readable memory circuit (memory device) having a location is provided. Like Specifically, the above electric field coupling device is an electromagnetic coupling device, but a capacitive coupling device can be devised and used. You can also be there. Preferably said data and timing signals are digital. and the strength of the electromagnetic field in each of two substantially opposed electromagnetic field directions. The rate of variation in intensity is controlled. To storage devices and demultiplexing devices The power is supplied to the above demultiplexer by an old-fashioned rectifier combined with the demultiplexer. It can be generated from either a motor or a timing signal. Preferably this data storage The circuitry also performs remote reception in response to appropriate command signals included in the combined data signal. A non-inductively coupled device that transmits data stored in a data storage device to a device circuit. The storage device is both a transmitter and a receiver of data and tarokk signals (transmitter/receiver). ).

Storage devices can be used in various fields, especially for monitoring the usage status of machine tool bits. can be installed to

Providing individual transmitter and remote receiver circuits on machine tools and using bits in storage can be made to update itself automatically every time. The storage device is bit-engineered. Automatic read/write combined with transmitter/receiver circuit when installed on machine tool The machine tool's vision is read by the embedding device and updated with new information. is fixed in place on the cut.

Coupling devices allow storage devices to be powered from an external power source and require careful coordination. and require complex or high-precision electromechanical connections that are mechanically abrasive. A data and clock control channel may be provided. In addition, new modulation techniques (later data and clock operation channels (described in detail in Derived from data, thereby receiving all power, clocking and data signals, one without the need for complex demodulation techniques that require the use of complex and expensive detection circuits. can be derived from multiplexed signals of Power supply and data are supplied externally The storage device may be a component of a machine tool or, for example, a permanent manufacturing surveillance tracker. be small enough to remain attached to other items manufactured to do so. It can be done. Electric field coupling prevents corrosion, abrasion, and mechanical damage. or create static paths or other electrical problems that can damage the circuit. Storage devices can operate reliably even under adverse environments.

According to another feature of the invention, data and clock signals are transmitted via a single transmission channel. The signal can be transmitted to a remote receiver, and the ``1° bit and ``0° bit'' representing data in a continuous form are A binary data signal consisting of a stream of bits is defined by the bit transmission rate of the binary data signal. It has a high frequency with respect to the a corresponding first polarity and a zero voltage corresponding to the °0゛ bit in the binary data signal; converting into a data signal consisting of high frequency oscillations with levels, ``1° bit and'' A binary clock pulse signal consisting of alternating streams of 0' bits is applied to the binary clock. It has a high frequency compared to the bit transmission rate of the clock pulse signal, and is also a binary clock. a second polarity opposite to the first polarity corresponding to the °1 bit in the pulse signal; and the zero voltage level corresponding to the '0' bit in the binary clock pulse signal. Converting the above data signal and the above clock signal into a clock signal consisting of high frequency oscillation. Multiplexing the lock signal allows the multiplexed signal to be put into four possible states for transmission. That is, the zero voltage state when both the data signal and the tarokk signal are 0° at the same time, When the data signal is “1°” and the tarokk signal is “0” or vice versa. High frequency oscillation state of first polarity or second polarity and data signal and tarokk signal High frequency oscillation pattern of first polarity and second polarity alternately when both are 1゛ at the same time A modulator is provided which operates according to a modulation technique comprising: Ru.

The high frequency oscillation for transmitting the 1” data signal and the 1° clock signal is out of phase. and preferably out-of-phase output signals of a single source of high-frequency oscillation. The use of high-frequency oscillation at a high frequency representing a “1° signal” in the clock signal and Furthermore, the binary data signal and tarok signal are synchronized in any case. must not be

Demodulates the received clock and data signals that have been modulated and transmitted as described above. The demodulator operates by demultiplexing the demodulation technique, which transfers the received signal to the transformer. The first end of the secondary coil of the transformer for zero voltage in addition to the terminals of some coils. Form the data channel signal by outputting a signal to the output of the transformer with respect to zero voltage. the clock channel signal by outputting a signal to the output of the second end of the secondary coil of the device. and convert the above data channel signal and clock channel signal into two It consists of adding to each Schmitt trigger circuit or similar circuit.

The signals at the output of the Schmitt trigger circuit are the data and clock signals of the storage device, respectively. can be added to the back line.

The first and second ends of the secondary coil of the transformer apply a DC voltage to the storage device. It can be connected to a full wave rectifier circuit to In this way, the storage device stores data or is energized when a clock signal is transmitted to its storage device via an electric field coupling device. It's just that.

Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which: FIG.

Figure 1 shows a memory for demodulating a single component of a multiplexed signal, in this example a data component. 1 is a schematic diagram showing a part of a transceiver circuit connected to the device, FIG. 2 includes the portion shown in FIG. 1 is a schematic diagram of a portion of a transmitter and receiver circuit showing a circuit for detecting both the clock operating component; and FIG. Figure 3 is a schematic circuit diagram of a complete transmitter/receiver circuit of which the circuit of Figure 2 forms a part; , Figures 4A to 4G show how the clock, data and power signals are received by the circuit of Figure 3. 2 is a schematic waveform diagram showing how to transmit and demodulate the signal; FIG. 5 is a schematic circuit diagram of a transmitter circuit for use with the circuit of FIG. 3; FIG. 6 is a schematic perspective view showing an example in which the present invention is applied to a machine tool.

Now, with reference to Figure 1, we will explain the configuration and operation of the data signal detection section of the transceiver. I will clarify. Receiver coil 1 serves as the secondary winding of the transformer and as the -secondary winding. Inductively coupled coil 50 (see Figure 5) in a separate transmitter unit that functions as be done. Power, clocking and data signals are transmitted electromagnetically from the transmitter. , received by the receiver coil 1.

The strength or polarity of the electromagnetic field generated by the current flowing through the transmitter coil 50 changes The transmitter coil and the receiver coil are then provided substantially adjacent to each other. Corresponding to the above changes in the coil of the receiver circuit which acts as a secondary coil when iit'IN is induced. The receiver circuit has two types in relation to the direction of current flow. a detector circuit that generates an output pulse in one of the channels. detector times The path has a secondary coil l, one end A of which is connected to a resistor via a diode 2. The other end B of the secondary coil 1 is connected to the resistor/capacitor (R/C) network, and the other end B of the secondary coil 1 is connected to the ground potential. It is in. The R70 network consists of resistor 3 and capacitor 4. tEff world changes and becomes the first polarity, a potential is induced across the coil 10, and a polarity is applied to one end. The current forward biases diode 2, and the connection point C becomes a Schmidt transistor. The switching value of the trigger circuit 5 is at or below the switching value. schmitt trigger circuit The detector circuit data channel at the output produces an output data signal of one polarity. When the lTn field changes and becomes of opposite polarity, end A.

The polarity of B is reversed, diode 2 is reverse biased, and the connection point C is Schmitt The switching value of the trigger circuit 5 falls below the threshold value, and the detector circuit data channel The channel generates an output data signal zero voltage. Therefore, the pole of the coil at end A If the voltage is +5v and end B is grounded, diode 2 will be reversely biased. is not conducting, the voltage in the R70 network remains constant, and the Schmitt The trigger circuit 5 does not generate any output, i.e. it heals when the 0° data signal occurs. . The direction and polarity of the magnetic field changes, with the polarity of end A being grounded and the polarity of end B being grounded. When the resistance becomes +5■, diode 2 conducts and the connection in the R70 network The potential at point C decreases, causing the Schmitt trigger circuit 5 to output a “1” data signal. Occur. As a result, the magnetic field that causes end B to be +5■ and end A to ground is simply A '1' data signal output is generated by this change. Thus Schmittli The storage circuit 5 receives transmission data sent to a storage chip, which will be explained below with reference to FIG. Consists of a continuum of “1° and O゛” corresponding to “1′ and 0” in the data Generates an output signal.

The R/C network 3.4 increases the duration of the voltage drop at connection point C and remain positive as long as end B in coil 1 is positive with respect to end A of coil 1, and Smoothing high frequency oscillations of the data carrier frequency at that positive voltage. R/C circuit The time constant of is increased by a value related to the values of resistor 3 and capacitor 4.

See Figure 2 which shows both the receiver's clock signal detector and data signal detector. Then the receiver's clock signal detector is the same as the data signal detector, and the coil It can be seen that a diode 6 is connected to the other end B of 1. diode 6 is connected to the R/C circuit consisting of resistor 7 and capacitor 8 and Schmitt detector 9. The Schmitt detector 9 receives a 1° clock signal every time the diode 6 becomes conductive. occurs. The clock detector therefore has a potential at end B at ground potential, When the potential at end A becomes +5■, that is, the electromagnetic field changes and Generates a 1° clock signal output when the polarity is opposite to the polarity that generates the clock signal output. It is the same as a data signal detector except that it generates a signal. two diodes 10 and 11 connects the cathodes of diodes 2 and 6 to form a current return path to ground. are doing.

FIG. 3 is a diagram of the receiver circuit. As explained above with reference to Figures 1 and 2. A data and clock signal detector is shown. schmitt trigger circuit The outputs from 5°9 are respectively data and clock outputs of integrated circuit (T, C) storage device 12. Sent to lock input. Power supply to integrated circuit storage 12 and detector circuitry The supply is derived from either the clock signal or the data signal and is connected to the two diodes mentioned above. In a gold wave bridge rectifier circuit consisting of a node 10.11 and a diode 13.14, Therefore, it is done. The bridge rectifier circuit connects +5■ to one of the two power supply lines. supply ground voltage to the other end. Pressure stabilization is provided between the positive feeder and the ground wire. This is achieved by a shunted Zener diode 15. Two capacitors16. 17 is used to smooth the power supply. Clock operation output C and data output During periods when both are zero, there is no power supply; The interruption in can be accommodated by a smoothing capacitor 16.17 in the feed line. be shortened enough during transmission to ensure that

High frequency modulated power, data and clock operation pulses are demodulated in this way. , demultiplexed, and integrated circuit storage by electromagnetic induction as described above. 12. The supplied data can e.g. The number of rotations that the machine bit undergoes by the machine tool spindle on which the transmitter is installed , representing the operating duration and temperature. The data is contained in the receiver shown in Figure 3. can be read from the integrated circuit storage device 12 to a remote circuit by a Ru. A light emitting diode ( D, E, D) 18 are used. The anode of the light emitting diode 18 has two parallel integrated circuit memory via two resistors 19.20 and a Schmitt trigger circuit 21.23. Connected to the data output channel of the storage device. If the output of the data channel is negative When generating a data pulse (“1° signal”), the Schmitt trigger network Reduce the potential of the cathode of diode 18 to a sufficiently low level to make the diode conductive. Let it pass and transmit light. Therefore, the pulses from integrated circuit storage 12 will vary. 51 in FIG. 5 from the integrated circuit storage device 12. such as a photodetector to a suitable reading device.

Diode 24 prevents Schmitt gate 23 from pulling the data line high so that either the storage device or the transmitter provides a pull-up resistor. The data line is lowered with a ``wire-off'' device. Therefore, the transmitted data is stored , and then integrated by transmitting continuous high-level pulses during the read operation. It can be read using the same data lines to circuit memory 12.

Figures 4A-4G are shown on the same time axis and illustrate the operation of the receiver circuit of Figure 3. ing. Figure 4A shows the clock from the remote transmitter that enters coil 1 of the receiver circuit of Figure 3. Indicates the lock signal and high-frequency modulated multiplexed data flow; How does the corresponding voltage change occur in the clock and data channels of the circuit? It shows how it will be born.

In FIG. 4A, each arrow represents an electromagnetic field pulse. arrow pointing from A to B represents a magnetic pulse that induces a current to flow from point A to point B through coil 1. ing.

So the polarity induced in A is positive with respect to B, which is at ground potential. Similarly, B? The arrow pointing upward from A to A indicates the current flowing in the opposite direction from point B to point A through coil 1. It represents the change in the magnetic field that induces the flow. Therefore, the voltage induced in coil 1 is , the polarity is opposite, point B is positive and point A is at ground potential.

The clock and data channels of the receiver circuit flow in opposite directions through coil 1. diode 2.6 conducts in the opposite direction. It is directed towards. The clock channel simply detects the induced current flowing from A to B. , and the data channel is simply made to respond to the induced current flowing from B to A. Ru.

The remote transmitter shown in FIG. 5 has a data encoder 52. 52 inputs data from, for example, a keyboard or computer, for example in FIG. 4B. converting them into a binary data stream of “1° and 0°” shown in FIG. to one of the inputs. The other input of the AND gate 53 is connected to the high frequency oscillator 54. each degree signal in the binary data stream generates a high frequency oscillation, i.e. frequency f , to one input of the multiplexing circuit 55. I try to do that. Similarly, clock pulse generator 56 provides binary degrees 1' and 1'. A regular stream of 0° signals is applied to one input of AND gate 57. AND game The other input of port 57 is connected to a high frequency oscillator 58, which generates a two-way signal as shown in FIG. Each °1" signal in the forward clock pulse stream generates a pulse of high frequency oscillation of frequency ft. The signal is supplied to the other input of the multiplexing circuit 55. High frequency oscillation F1 The polarity is opposite to that of the high frequency oscillation F2. The output of the multiplexing circuit 55 is the transmitter coil. The transmitter coil 50 is connected to the coil 50 of the receiver circuit shown in FIG. a multiplexed signal consisting of radio-frequency pressure or negative polarity electromagnetic field pulses coupled to 1 to transmit. By setting the high frequency oscillation of the data signal and clock signal to the same frequency, It is possible to actually configure the oscillators 54 and 58 with a single oscillator, such that f, = f. Can also be done. In that case, ensure correct demultiplexing and demodulation by the receiver In order to do this, the high frequency data oscillation and high frequency Cronk oscillation signals are sent to the coupling coil 5. The resulting signal added to 0°l becomes a stream of interleaved high-frequency pulses, For example, 180° phase so that the pulses are of opposite polarity as shown in Figure 4A. must be shifted, the data signal is in the °1° state and the clock signal is in the ' In the 0° state, the signal applied to the coupling coil 50 is a high frequency positive polarity pulse. In addition, the clock signal is in the 1° state and the data signal is in the 0' state. In this case, the signal applied to the coupling coil 50 is only a high frequency negative polarity pulse. If the flow is as follows, and both the data and clock signals are in the “0” state, No pulses are applied to the coupling coil 50.

FIG. 4A shows an electromagnetic clock applied to coil 1 by the remote transmitter of FIG. and data pulses, and the data and clock pulses described above. All possible combinations of lock signal states are illustrated. of an arrow going from B to A The envelope curve (hereinafter referred to as 'BA pulse') corresponds to the data 'l° times signal, and also the A The envelope of the arrow pointing from to B (hereinafter referred to as 'AB pulse') is clock '1' Respond to signals. 4th D The figure shows a data detection channel corresponding to the data signal in the flow of Figure 4A. shows the voltage fluctuation at the input of the Schmitt trigger circuit 5 of FIG. These voltages The fluctuations are smoothed by an R/C network as explained later, and the Schmitt trigger circuit 5 only responds to BA pulses and does not respond to AB pulses. . For the purpose of this explanation, Figure 4D shows the various areas represented by the letters C, D, E, F, G, H1■. Considering the area between the six points C and D, the first pulse of the multiplexed signal is a BA pulse, and this BA pulse increases the input voltage of the Schmitt trigger circuit 5. Increase the positive voltage to, for example, +5■. The duration of the pulse is short, so The input voltage after the application of the BA pulse increases the voltage of the Schmitt trigger circuit 5 by +5. It stabilizes toward the ground potential (0■) at a rate determined by the R/C network until it returns to ■. This results in a sawtooth waveform in regions C to D in Figure 4D. . The transmission of the high frequency BA pulse corresponds to the transmission of the 1° data pulse, and the frequency f The first (or second) is that the input voltage is high during the transmission of one or more data pulses. The input voltage drop rate is maintained at the level of Interspersed tarok pulses in the direction of the 0 opposite AB force selected to exceed the The presence of has no effect in regions C to D due to the smoothing effect of the R/C network. do not have.

The R/C circuit p1 network in both the tarok and data channels of the detector circuit is prevent the alternating polarity magnetic fields of the data and clock channels from interfering with each other, It also allows for multiplexing of both clock pulses and data pulses. Shumi The trigger time FF&5 is triggered by a series of BAt magnetic pulses applied to both ends of coil 1. maintained below its switching threshold. Each pulse causes f! of B! Gender is the pole of A The positive polarity at point B, which is positive with respect to the polarity, biases diode 6 in the opposite direction. , Schmitt trigger times 1i’! 5 during the duration of each BA pulse, preventing it from triggering. is short, and the potential at point B increases as the magnetic field around coil 1 disappears. and decreases.

Ideally, the potential at point B can be maintained at one frequency by a series of BA pulses. if Before the voltage drops below the Schmitt threshold, it returns to +5V, and this condition is shown in Figure 4D. It is shown as a sawtooth waveform in regions FG. However, the signals are multiplexed Therefore, the BA data pulse is mixed with the AB clock pulse. The function of each BA pulse Then, the decay of the magnetic field around coil 1 is rapidly accelerated and the polarity is reversed to point B. is the ground potential, and point A is +5V, and point B is the electromagnetic clock. When the potential is suddenly grounded due to the back pulse, the diode 6 is biased in the forward direction. conducts and the voltage at the input of the Schmitt trigger circuit 9 drops below the threshold. triggers the circuit to generate a data signal output. Enable clock pulse causes the Schmitt trigger circuit 5 to generate a data signal output, and similarly generates a data pulse. The device may trigger the tallock signal output.

Tarock channel and data channel are triggered by wrong pulse. To prevent this, an R/C network is installed between coil 1 and Schmitt trigger circuit 5. I get kicked. This R/C circuit circuit time constant is the point when the next BA pulse enters coil 1. The voltage at Schmitt trigger circuit 9 is kept at that threshold until the potential at B returns to 5V. chosen to keep it below the value. Similarly, R/C in the clock channel The circuitry ensures that the data pulse does not cause the voltage on the tarok channel to exceed the Schmitt threshold. It also prevents data pulses from being clocked out to the tarok channel. prevent the occurrence of

Considering the area between D and F, the voltage of the Schmitt trigger circuit is +5 for the multiplexed signal. ■It does not include the BA pulse that maintains the voltage, so the voltage is determined by the R/C network. At point E, where it drops towards ground potential, the voltage drops below the Schmitt threshold. and triggers the Schmitt trigger circuit 5 in the data detection channel. , the input voltage of the Schmitt trigger circuit 5 is the next electromagnetic pulse in the BA force direction at point F. It is maintained at ground potential until power is applied.

The input voltage is increased in the R/C network by subsequent trains of BA pulses to + Increased to 5■ and maintained.

In this way, another sawtooth input voltage waveform similar to the waveform in regions C to D is obtained. Ru. In regions G-I, the multiplexed signal includes data or clock signals and therefore electromagnetic signals. There is no pulse, so the input voltage of the Schmitt trigger circuit will recur at point H. and falls below the Schmidt threshold. S pressure is another data in the transmission signal. Maintaining zero volts at point Ii where the next BA pulse representing the tapalus returns the voltage to +5■ do. When the input voltage is below the Schmitt threshold, the Schmitt trigger circuit 5 However, if the input voltage is below the Schmitt threshold, the Schmitt Trigger circuit 5 generates an output voltage of opposite polarity. Figure 4F shows the multiplexing of Figure 4C. The signal is generated by the Schmitt trigger circuit 5 according to the data signal content (BA pulse). The signal waveform is the envelope of the BA pulse, representing the output signal generated by the remote transmitter. It can be seen that the data pulse flow in the positioning device roughly corresponds to that shown in Fig. 4B. Karu.

The clock signal is derived from the multiplexed AB pulses in the same manner as the data signal.

As can be seen by comparing Figures 4C and 4F, the AB pulse is a Schmidt trigger. The Schmitt trigger level is maintained above the threshold voltage of the trigger circuit 9, and the AB pulse is The R/C circuit discharges and the voltage drops below the Schmitt threshold. this The discharge is unaffected by the presence of BA pulses in regions FG, for example.

The presence of the BA pulse drives the Schmitt trigger circuit 5 to a positive voltage below the Schmitt threshold. and prevent this circuit from generating a data output signal. in the same way Therefore, the presence of the AB pulse means that the Schmitt trigger circuit 9 has a positive value below the Schmitt threshold. voltage and prevent this circuit from generating an output tallock signal.

In either case, in the absence of pulses in the appropriate direction, the input voltage level remains below the Schmitt threshold, and the circuit in that channel generates an output signal. Ru. An important feature of this method is that both the tarok signal and the data signal are sent to the transceiver. The objective is to be able to simultaneously transmit the signals and demodulate them correctly. This state is This is shown in areas C to D in FIGS. 4F and 4G.

In fact, the 1° and 0° of both the clock and data signals are pulses of opposite polarity. or not transmit any S magnetic pulses at all. can be superimposed within a multiplexed signal.

In one application of the invention shown in Figure M6, the remote storage device 12 is used to shunt machine tool bits. 60 and become a permanent feature of the machine tool bit. Ru.

A small induction coil 1 is wound concentrically around the photodiode 18 and Placed at a convenient position on bit 60, 3! ! Only accessing the interval writing a device 12 data with a remote transmitter/receiver, such as the one shown in Figure 5, used to update It constitutes Tallink. A transmitting coil 50 wound around a photodetector 51 is provided. The obtained remote transmitter/receiver device is placed in the chuck 61 of the machine tool, and then When the machine tool bit 60 is positioned in the chuck 61, optical and magnetic An air link may be formed and remote storage devices may be accessed. inside the chuck The induction coil device 50 is connected to the transmitter/receiver and has power, clock and The data signal is transmitted to remote storage device 12 in bit 60. Inside the chuck 61 A photodetector 51 receives optionally transmitted data from a remote storage device. separate magnet The advantage of using an optical channel and an optical channel is that the data can be written to the storage device. is not confused with the data being read from storage, and both processes are running at the same time. It lies in what can be done.

Each time a machine tool bit 60 is placed in the chuck 61, its storage device is automatically A read is made and updated so that, for example, the number of previous operations and the total It allows you to record usage time.

If records show that bit 60 has reached its encouraged limit, , that bit may be discarded.

During use, additional operations and usage periods of the bits are automatically loaded into storage; Along with the machine tool bits there will be a constant updated record.

The above embodiment has a large variable coupling gap and a ferrite core similar to a transformer. However, other couplings may be used without departing from the scope of the invention. The device may also be devised. For example, the coupling between the remote transmitter/receiver and the storage device may be It may be by waves, in which case the coil 1.50 takes the form of a radio antenna. be able to.

The receiver circuit combines separate electronic components with off-the-shelf integrated circuit storage. Although the entire circuit has been described as a dedicated integrated circuit, it is likely that You can also.

The above describes a special application example for inspection of the use of machine tool bits. However, the remotely accessible storage device and the device linked thereto according to the present invention Many other applications are suggested to those skilled in the art.The device can be carried by a person, for example. A small piece of card containing personal medical information, bank account information, etc. It can be configured as follows. This card can therefore advantageously be used in devices such as clinics and banks. It can be linked with the above transmitter/receiver installed in automatic cash dispenser.

+Sv Procedure Nefu Seisho (self-motivated) June 3, 1986

Claims (13)

[Claims] 1. multiplexed data and timing signals from suitable independent transmitter circuits. An electric field coupling device to couple and demultiplex the above signals and convert those signals into data. and a demultiplexer for supplying the storage device. A memory circuit that can be recalled. 2. The remote calling device according to claim 1, wherein the electric field coupling device is an electromagnetic coupling device. A memory circuit that can be extracted. 3. The remote calling device according to claim 1, wherein the electric field coupling device comprises a capacitive coupling device. A memory circuit that can be extracted. 4. The data and timing signals are digital and two substantially opposed It is designed to control the rate of variation of the field strength in each of the field directions. A remotely recallable storage circuit as claimed in claim 1. 5. The power supply to the storage circuit and data storage device is combined with a demultiplexer. signal generated from either the data or timing signal by a common rectifier. Scope of Request: A remotely readable memory circuit according to any of the above items. 6. to a remote receiver circuit in response to an appropriate command signal contained in the combined data signal. a non-inductively coupled device for transmitting data stored in a data storage device; The data storage device functions as both a transmitter and a receiver of data and clock signals. Claims that enable remote calling as described in any of the above paragraphs. A memory circuit that can be used. 7. A non-inductively coupled device transmits data in response to data stored in a data storage device. A light emitting device that transmits in the form of variations in the intensity of light to a remote receiver circuit with a photodetector device. 7. A remotely retrievable storage circuit as claimed in claim 6, comprising a station. 8. Transmits data and clock signals to remote receivers over a single transmission channel consists of a stream of '1' bits and '0' bits representing continuous data. A binary data signal is transmitted at a frequency higher than the bit transmission rate of the binary data signal. and a first polarity and a second polarity corresponding to a '1' bit in the binary data signal. High frequency oscillation with zero voltage level corresponding to '0' bit in binary data signal to a data signal consisting of an alternating stream of '1' bits and '0' bits. A binary clock pulse signal consisting of It has a high frequency with respect to the feed speed, and also has a '1' in the binary clock pulse signal. a second polarity opposite said first polarity corresponding to a bit; and a binary clock pulse. Consists of high frequency oscillations with zero voltage level corresponding to '0' bits in the signal Converting to a clock signal and multiplexing the data signal and the clock signal The multiplexed signal for transmission can be in four possible states: data signal and clear signal. Zero voltage state when both lock signals are ‘0’ at the same time, data signal is ‘1’ ' and the first polarity when the clock signal is '0' or vice versa. is a high frequency oscillation state of the second polarity and both the data signal and the clock signal are simultaneously ‘ 1', so as to have high frequency oscillation states of the first polarity and the second polarity alternately. A modulation technique characterized by comprising the steps of: 9. A modulator circuit operative in accordance with the modulation technique of claim 8. 10. Apply the received signal across the terminals of the primary coil of the transformer and transform it with respect to zero voltage. A signal is output to the output of the first end of the secondary coil of the voltage generator to generate a data channel signal. form and output a signal to the output of the second end of the secondary coil of the transformer for zero voltage to form a clock channel signal separate from the data channel signal, and The above data channel signal and clock channel signal are connected to two Schmitt channels. Claim 8 consisting of adding to each of the trigger circuits or similar circuits Demodulate and demultiplex the received clock and data signals that have been modulated and transmitted as described. Multiplexing demodulation technology. 11. A demodulator circuit operative in accordance with the demodulation technique of claim 10. 12. The output of a Schmitt trigger circuit or similar circuit is connected to each of the data storage devices. 12. A demodulator circuit as claimed in claim 11 connected to data and clock lines. 13. The first and second ends of the secondary coil of the transformer are connected to a demodulator and associated therewith. claim 1 connected to the full-wave rectifier circuit to apply a DC voltage to the circuit Demodulator circuit according to item 11 or 12.