JPS62263746A - Data input device - Google Patents

Abstract

PURPOSE:To attain a data input device offering the ease of use without giving the feeling of disorder to a user by providing a dial signal generating means generating either a pulse signal or a multi-frequency signal, a polarity inversion detecting means and a speaker means amplifying a signal tone on a communication line and transducing it into an audible tone. CONSTITUTION:The polarity inversion detection circuit 101 connected to the opposite party of communication to detect the closed line, the dial signal generating circuit 112 generating either a pulse signal or a multi-frequency signal(MF signal) depending on the setting and means 110, 111 to monitor the signal tone on the line are provide. Thus, the MF signal is outputted from a subscriber line for a pulse signal and the signal tone on the line is monitored, then the data input device using not only the subscriber line for the MF signal but also the subscriber line for the pulse signal is attained.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention enables an information provider (consumer) to select a desired product from product information provided using an information transmission medium such as a catalog. and enter the item number and order quantity.
The present invention relates to a data input device used to inform a product information provider. More specifically, the present invention provides an improved data input device capable of performing operations equivalent to a button telephone even on a pulse dialing subscriber line.

[Conventional technology] As a method of selling products without a store, catalogs with external photos of the products, or leaflets with only the product name for products whose appearance is well-known, are distributed to consumers' homes, and then posted there. The customer selects the desired item from the listed product group, receives the requested quantity via postcard, telephone, or OCR (optical character reader) paper, and then sends it by post or courier. There are methods such as delivering products to each household.

Among these communication methods, postcards are limited in the number of products that can be handled due to the small amount of information that can be transmitted, the slow transmission speed, and the high cost of transmission. In other words, we have no choice but to limit ourselves to products that have a high unit price and do not require freshness. Further, the communication method by telephone has disadvantages such as the possibility of trouble between the supplier and the consumer because there is no recordability.

A method to improve these shortcomings is to print the product name on OCR paper, write the order quantity as a number in the same field as the product name, collect the number after writing it, and have it read by OCR. Kameru. This method more than makes up for the shortcomings of postcards and telephone communication methods in terms of recordability, amount of information to be transmitted, transmission cost, and reading speed.

However, when numbers are written by hand and then read by a machine, many numbers are unreadable, and great care must be taken to prevent stains and deformation of the paper surface. Further, the OCR paper size is determined by physical limitations of OCR (number of reading sensors, entrance size), and cannot be easily changed even if an attempt is made to increase the number of listed product items.

Therefore, in order to solve these problems, numeric keys are provided, numbers are converted into codes and stored in storage means such as semiconductor memory, and numeric codes are converted into readable character patterns to confirm input numbers. A device equipped with a display section for displaying information can be considered.

In such a device, numbers are input using numeric keys, so there are no individual differences. Furthermore, if a semiconductor memory is used as a storage means, a compact and human-like device can be obtained, so there is no such limitation as that of OCR paper.

The input information can be collected by placing the semiconductor memory in a removable case (hereinafter referred to as a memory card) and moving it manually; There is a method of fixing the information in the computer and transmitting its contents using a communication line.

The method using a memory card is a method that digitizes OCR paper, and does not require major changes to the conventional non-store sales management method. On the other hand, the method of using communication lines is completely different from conventional methods and is superior in terms of speed and reliability of information transmission.

The device described above has significant advantages in terms of both mass and mass in transmitting information, but there are also problems that need to be solved in operation.

[Problems to be Solved by the Invention] In a product sales system that incorporates an electronic device such as the above device, especially a device that allows quick ordering with simple operation, as a terminal, Payment payments are also required to be automated. Payment is usually made using a bank account. On the other hand, banks provide a seafood service using a butshuphone telephone, allowing the orderer to know his or her own account balance before placing an order, and then placing an order to avoid unnecessary trouble. However, such functionality was limited to lines for butsuhon telephones.

[Means for Solving the Problems] The present invention has been made to solve these problems, and includes a polarity reversal method for detecting that the line is connected to the other party of communication and the line is closed. A detection circuit, a dial signal generation circuit capable of generating either a pulse signal or a multifrequency signal (MF multiplied signal) according to settings, and means for monitoring signal tones on the line are provided.

[Operation] As a result, even if the subscriber line is for pulse signals, M
``Since it is possible to output signals and monitor the (HQ sound) on the line, it can be used not only for subscriber lines for MF double signals but also for subscriber lines for pulse signals. data input device that can be used to

[Embodiment] FIG. 1 shows the overall configuration of a first embodiment of a data input device according to the present invention. 140 and 141 are signal lines connected to communication lines such as telephone lines. Reference numeral 101 denotes a polarity reversal detection circuit for detecting whether exchange connection has been made to a communication partner (center device). Reference numeral 102 is a full-wave rectifier circuit for fixing the DC polarity of circuits to be connected later. Signal lines 142 and 143 transmit the output of the full-wave rectifier circuit 102, with 142 being a positive signal line and 143 being a negative signal line (common signal line of the circuit).

Reference numeral 103 denotes a line use detection circuit for detecting whether or not the communication line is being used by a telephone or the like connected in parallel to the communication line outside the present data input device. '10
4 is a disconnection circuit corresponding to a hook switch in a telephone set, and is controlled by a main control circuit 118, which will be described later.

Reference numeral 105 denotes a dial/switch for sending pulse signals to an exchange (installed in a telephone office, hereinafter simply referred to as an exchange) that requires pulse signals as a dial signal.
It is a pulse sending circuit. Reference numeral 106 is a disconnection circuit for disconnecting circuits y4 that are subsequently connected while the pulse signal is being sent out. Reference numeral 107 is an MF signal sending circuit for outputting an MF low signal to an exchange that requires a frequency modulated signal (hereinafter referred to as MF low signal) as a dial signal. 108 shows high impedance to AC signals,
For direct current, it is a direct current closed circuit that functions to allow a current above a certain level to flow.

]]0 is an amplifier circuit for amplifying the audio band signal on the signal line 182. A speaker 111 converts the output signal of the amplifier circuit 110 transmitted through the signal line 183 into an audible signal sound, and allows the user to monitor the communication sound during communication to check the operation.

109 is a disconnection circuit for disconnecting the signal supplied to the amplifier 11'0. 184 and 185 are capacitors for blocking direct current and passing only alternating current signals.

112 converts and outputs the dial signal outputted from the main control circuit 118 through the information line 150 as a pulse dial signal to the signal line 147 according to instructions from the dial type setting circuit 113, or converts it into an MF low signal. This is a dial signal generation circuit that converts and outputs the signal to line 149.

114 receives the transmission data output from the main control circuit 118 during transmission via the signal line 153 and modulates the carrier wave.
Function to send to signal @ line 152 and signal line 15 when receiving.
This modulation/demodulation circuit has a function of demodulating the modulated signal on the signal line 153 and supplying received data to the main control circuit 11B via the signal line 153.

Reference numeral 115 denotes a boosting power supply circuit for boosting and supplying power from the output of a power supply circuit 117, which will be described later, only when necessary to operate the modulation/demodulation circuit 114. Reference numeral 116 is a disconnection circuit for disconnecting the supply of power to the modulation/demodulation circuit 1/4 different from the above. 117 is a replaceable "upper battery" (main battery) when carrying and operating this data input device.
In addition, in the case of fixed operation, the power supply circuit can also use a power supply obtained by step-down rectification of the commercial power supply.

11B is a main control circuit that comprehensively controls this data input device. ] 19 supplies the main power to the data input device, and is a power supply circuit including an output voltage support circuit and a voltage reduction monitoring circuit.

Reference numeral 158 denotes a power line for supplying the stabilized output of the power supply circuit 119. Further, 169 and 170 are the power supply circuit 1
This is a signal line for transmitting the voltage drop monitoring output from the voltage drop monitoring circuit included in 19.

Reference numeral 120 instructs the main control circuit 118 to start the operation by the user of the data input device (a consumer who makes an order);
This is a control key that is used by the user (hereinafter referred to as the user) to issue instructions, and is equivalent to a general power ON key. ] 21 is an input key circuit through which the user instructs the main control circuit 118 to operate. 122 has a function of converting and displaying symbols, numbers, and character codes outputted by the main control circuit 118 via the signal line 161 into readable patterns in order to display information necessary for the user to operate this data input device. This is a display circuit with a

123 is a contact circuit that is controlled by the main control circuit 118 via the signal line 162 to disconnect the power line 163 from the power line 158 in order to cut off the power of the display circuit 122 when unnecessary. .

127 includes guidance information used when the user inputs data handled by this data input device and control information necessary for the main control circuit 118 to operate (information distributed from the center to each user). , hereafter referred to as downstream information.
A center is a business that provides product information and sells products, and is hereinafter referred to as a center. ) or is for storing newly generated information after input (information transmitted from individual users to the center side, hereinafter referred to as upstream information), and is removed from this data input device. is also a memory circuit (hereinafter referred to as a memory card) whose memory contents do not disappear.

Reference numeral 124 denotes an information line 1 for specifying the reading position and writing position in the memory card 127 and inputting data.
This is an interface circuit that is inserted between 76 and 165 and performs a buffering operation.

125 is a means for storing control information of the downstream information stored in the memory card 127, storing upstream information, or storing information necessary for the main control circuit 118 to operate; It is a memory circuit (hereinafter referred to as RAM) that can be read and written at any time via an information line 166 from a main control circuit 118 that is fixedly installed inside the input device.

126 is a clock circuit that also has a built-in calendar function. 1
Reference numeral 28 denotes an auxiliary battery provided to realize a backup function in order to continue supplying current to some circuits when the power supply circuit 117 is no longer able to supply the desired voltage. 173 and 174 are die 1.1 which forms a circuit for clearly switching the power supply when the output voltage of the power supply circuit 117 becomes lower than the output voltage of the auxiliary battery 128. It is an ode.

171 is a signal line from the power supply circuit 119, and the power supply line 1
When the voltage of 58 falls below a predetermined value, a special signal is issued to cause the interface circuit 124, RAM 125, and clock circuit 126 to shift from the operating state to a standby state in which they do not respond to external signals.

172 outputs the output of the diode 173 or 174 to the clock circuit 126 whose operation cannot be stopped, the RAM 125 which needs to retain memory, or the memory card 12.
When 7 has a built-in battery and retains memory, it is a power line that constantly supplies voltage to the interface circuit 124 that performs control so as not to suck power from the built-in battery. be.

177 provides operating power to the memory card, and when the voltage on the power supply line 158 decreases, the memory card 1
This is required by a diode inserted between the power line 158 and the power line 178 to prevent reverse current so as not to drain the built-in battery 27.

Although not shown in FIG. 1, the power supply for the dial signal generation circuit 112 and the amplifier circuit 110 uses a DC current superimposed on the signal line 180, with only the DC component separated by a reactance circuit. . Also, some common lines (so-called GND lines) are omitted.

The configuration of one embodiment of the present data input device has been described above in accordance with FIG. 1, but briefly, the individual circuits are
This will be explained along with the drawings from FIG. 2 onwards.

Figure 2 shows a polarity reversal detection circuit 101 and a high wave rectification circuit 102.
, a circuit diagram showing a specific example of a line use detection circuit 103 and a contact circuit 104. FIG.

When the main control circuit 118 controls the contact circuit 129 to be in the contact state via the signal line 146, the light emitting diode D2 and the phototransistor Q1 are optically coupled;
When the signal line 140 is at a positive potential with respect to the signal line 141, current flows to the light emitting diode D2 through the resistor R1 and the diode D1, the phototransistor Q1 becomes conductive, and the signal line 140 is connected to the signal line 141. On the other hand, when the potential is negative, the current flowing to the light emitting diode D2 is blocked by the diode D1, and the phototransistor Q1 becomes non-conductive, so that the signal line 1
A polarity reversal detection circuit 101 is a circuit that detects whether the polarities of 40 and 141 are reversed and outputs a detection signal via a signal line 144.

Diode D3. D4. Signal line 1 by D5 and D6
The full-wave rectifier circuit 102 is a circuit configured such that a positive potential is always generated on the signal line 42 and a negative potential is always generated on the signal line 143.

By dividing the potential difference between the signal lines 142 and 143 with resistors R2 and R3 and connecting it to the base terminal of the transistor Q2, the potential difference is kept at a constant value (the potential difference when the DC circuit is closed with respect to the exchanger is open). When the DC circuit is open compared to before replacement, the reference voltage (in this case, the base-emitter voltage drop of transistor Q2 is approximately 0.7 V)
Since transistor Q2 is set to be conductive, the other transistors are non-conductive to detect whether or not the communication line is being used by others.
5 is a line use detection circuit 103.

FIG. 3 is a circuit diagram showing a specific example of the dial/pulse sending circuit 105, the contact surface circuit 1076, the MF signal sending circuit 107, and the DC connection circuit 108, which perform the essential operations of the present invention. Dial pulse sending circuit 105
is composed of a transistor Q3゜Q4 and resistors R4, R5, and R6, and when a high voltage (High) is applied to the base terminal of the transistor Q4, that is, the signal line 148, the transistor Q3 becomes conductive and the signal line 180→transistor Q3
→R4→A short-circuit current is passed through the route of the signal line 143, and when a low voltage (LOW> is applied to the signal line 148), the transistor Q3 becomes non-conductive and the route is opened (off).
This generates a dial pulse. The contact circuit 106 is turned off under the control of the main control circuit 118 only while the dial pulse sending circuit 105 is in operation. M
The F-multiple signal sending circuit '107 is composed of a transistor Q5 and resistors R7, R8, and R9, and amplifies the MF-multiply signal applied to the signal line 149, and outputs the amplified signal to the signal lines 181 and 143.

The DC connection circuit '108 has an inductance L1 and a resistance R.
10, and allows only a constant direct current to flow.

4 is a block diagram showing a specific example of the dial signal generating circuit 112 that characterizes the present invention.

Reference numeral 113 denotes a dial type setting circuit for externally setting whether the dial type is a pulse signal or an MF signal, depending on the type of exchange of the subscribed communication line.

Reference numeral 201 indicates that the signal line 150b that transmits a control signal included in the information line 150 that transmits a dial signal is in an active state (H>
This mode storage circuit stores the output of the dial type setting circuit 113 and outputs its state to the signal line 202.

203 outputs the state of the signal line 202 as it is to the signal line 204 when the signal line 150C that transmits the control signal included in the information line '150 that transmits the dial signal is not in the valid state (L), and When the control signal of 150C is in the valid state (H), the signal ゛.

Regardless of the state of the line 202, the mode control circuit outputs a mode signal which is output as an MF multiplied signal dial signal.

205 temporarily stores the dial number signal from the information line 150a that transmits the dial number signal of the signal line 150 that transmits the dial signal 1, and adjusts the dial intermittent time, rest time, etc. to the specifications before replacement. There is a dial control circuit that performs control to match the numbers.

A dial 207 generates a dial pulse train according to the dial number on the information line 206 outputted from the dial control circuit 205 and sends it out through the signal line 212, and controls the contact circuit 106 through the signal line 209.・Used by pulse generation circuit.

Reference numeral 208 is an MF signal generation circuit that generates a dial signal based on an MF multiplied signal in accordance with the dial number on the information line 206. 211 outputs the dial pulse train on the signal line 212 to the signal line 148 according to the control information on the signal line 204, and at the same time, the signal line 209 outputs a signal indicating that the dial pulse train is being outputted via the signal tube 147. This is a dial signal output selection circuit that selects whether to apply the signal to the contact circuit 106 or to output it to the MF multiplied signal signal line 149 on the signal line 210.

FIG. 5 is a block diagram showing a specific example of the modulation/demodulation circuit 114.

301 transmits transmission data, reception data, and control signals (transmission request, transmission enable, carrier detection output, etc.) to the information line 1.
This is a control circuit for communicating with the main control circuit 118 via 53.

302 is a modulation circuit for sending out transmission data sent via the signal line 311. 303 is signal line 3]
This is a filter circuit for limiting the frequency band of the transmission signal sent from the modulation circuit 302 via the modulation circuit 2.

304 is an amplification circuit for amplifying the transmission signal sent via the signal line 313. R20 is signal line 140
．． This is a resistor for impedance matching with the communication line to which 141 is connected.

307 is a received signal amplification circuit. 306 is a signal line 317 for attenuating out-of-band noise included in the received signal.
This is a filter circuit inserted between and 316. 3
05 is a demodulation circuit, and a demodulation signal output from the demodulation circuit is applied to the control circuit 30'l via a signal line 315. 3
08 is a carrier (carrier wave) detection circuit which supplies power to the control circuit 301 via a signal line 318 with its carrier detection signal.

In the case of transmission, the modulation/demodulation circuit 114 receives a transmission request signal from the main control circuit 118 by the control circuit 301, returns a transmission enable signal if the transmission is possible, and sends the next transmission data to the modulation circuit via the signal line 311. Pass it to 302. In the case of reception, the control circuit 301 passes the carrier detection signal received from the carrier detection circuit 308 via the signal line 318 to the main control circuit 118 when it is not in the transmission request state, and
A demodulated signal received from subsequent demodulation circuit 305 via signal line 315 is passed to main control circuit 118 as received data.

Signal transmission at this time is performed via the information line 153. Further, 155 is a power supply line (for example, 5V) that supplies current to the control circuit 301. 154 is the modulation/demodulation circuit 11
This is a power line for supplying power to circuits other than the control circuit 301 among the constituent circuits of No. 4, and is used to handle analog signals.
55 supply voltage (for example, 12v). Note that the modulation/demodulation circuit 114 in FIG. 5 has a configuration assuming communication using a half-duplex transmission method, but it goes without saying that even if it is a high-performance modulation/demodulation circuit capable of communication using a full-duplex transmission method, , does not interfere with the operation of this data input device.

FIG. 6 shows the operating portion of this data input device. 401 is a screen that displays patterns such as characters generated by the display circuit 122, 402 is a key for instructing the main control circuit 11B to communicate (hereinafter referred to as communication key), and 403 is a screen for displaying this data. A menu display instruction key (hereinafter referred to as menu key) is used before sequentially displaying the operation names of a plurality of operations prepared on the input device, and 404 is a menu display instruction key (hereinafter referred to as menu key) that is used when the main control circuit 118 is in a rest state ( This key (hereinafter referred to as the OFF key) instructs the user to enter the low power consumption state.
is a control key that activates the main control circuit 118 to become active.

406 is a key used to input numerical data, and 406 is a key used to input a telephone number (hereinafter referred to as numeric key), and 407 and 408 are keys used to return or advance the displayed contents of the screen. (hereinafter referred to as scroll key), 409 is a correction key for numerical data on the screen, 410 is a key for returning from data input state to menu selection state (hereinafter referred to as return key),
-, , 11 is a key C that instructs to write the displayed data to the RAM 125 and □ Valley memory card 127.
″−− (hereinafter referred to as the execution key).

The input key circuit 121 in FIG.
The circuit is configured in a matrix arrangement, and is key-scanned by the main control circuit 118.

FIG. 7 is a circuit diagram showing a specific example of the interface circuit 124 and the memory card 127.

501.502. and 503 are an address signal buffer circuit for specifying the address (data storage location) of the memory card 127, an input/output data signal buffer circuit for the memory card 127, and an input/output signal buffer circuit for controlling the input/output for the memory card 127. control signal buffer circuit.

Reference numeral 504 denotes a write/write circuit built into the memory card 127. 505 is a backup battery when the memory card 127 is removed from the data input device. 506 is the power line 1 to the backup battery 5.05
This is a diode to prevent current from flowing from 78. 507 is a connector for inserting the memory card 127 into the present data input device.

Next, to explain the operation of the circuit shown in FIG. line), the main control circuit 118 makes the control signal sent via the signal line 512 ineffective (L), and for this purpose three types of buffer circuits 501, 502 . and 503 is the information line 52 regardless of the state of other control signals].

Information line 522 for data signals. and a signal line 523 for read control. The write control signal line 524 is disconnected, thereby preventing the circuit on the main control circuit 118 side from being disturbed by noise or the like coming in from the connector 507.

When a memory card] 27 is inserted into the connector 507, the detection line 164 for detecting whether or not a memory card is installed is connected to the common signal line 526, and the main control circuit 118 activates the control signal on the signal line 512. 1 (1-1), the address signal information 6511 and 521. Information lines 513 and 1522 for data signals, signal lines 51'5 and 523 . and signal lines 516 and 5 for write control signal indicating data write timing.
24 are connected to each other. Roughly speaking, regarding the input/output data signal buffer circuit 502, depending on the state of the signal line 514, when the main control circuit 118 is in the reading state, the data signal is transferred from the information line 522 for data signals to the information line 513 for data signals. When the main control circuit 8 is in the writing state, the data signal is controlled to be transmitted in the opposite direction to that during reading.

The interface circuit 24 is powered by the auxiliary battery 1.
Power line core 2 backed up by 28 (Figure 1)
Even if the power supply 117 (Fig. 1) is out of power and the signal line 5]2 becomes inactive (S),
The memory card controller 27 continues to operate in the same manner as when it is not inserted into the connector 507, and the backup battery 505 built into the memory card 27 is connected to the resistor R3.
0, R31 (in order to put the memory circuit 504 into the memory retention state, it is necessary to pull up the read or write control terminal to the power supply potential). This prevents discharge through the information line 522 for data signals.

Note that if a read-only memory circuit (hereinafter referred to as ROM) is used as the memory circuit 504, the battery 505 becomes unnecessary, and therefore the power supplied to the interface circuit 124 can be supplied from the battery. It does not need to be backed up. Further, as a matter of course, since there is no write operation from the main control circuit 118, the signal lines 516 and 5243-3 for write control and the signal line 514 for control signals that control the direction of data signals are no longer necessary.

FIG. 8 is a circuit configuration diagram showing a specific example of the clock circuit 126.

550 is a clock oscillation circuit; 551 is a clock oscillation circuit in which the clock output of the clock oscillation circuit 550 is lost via a signal line 560;
552 is a control circuit that sends and receives time data to and from the main control circuit 118 via the information line 168; -1553 is a main control circuit that has a function of comparing time data; i18 On the other hand, it is an alarm circuit that provides a start signal ``through a signal line 167, and 172 is a power line for supplying power that will not be interrupted by a power outage.

To explain the operation of the clock circuit 126, first, the main control circuit 1
18 via the information line 168 is applied via the information line 561 to the counter circuit 55.
1 is reset, and based on that time, the counter circuit 551 counts up and generates time data of year, month, day, hour, minute, and second. The time data is supplied to the control circuit 552 via the information line 562 so that the main control circuit 118 can refer to it as needed, and is also supplied to the alarm circuit 553. On the other hand, the alarm circuit 553 receives alarm time data in advance from the main control circuit 118 via the information line 563, and when the alarm time data and the time data applied via the information line 562 match, an activation signal is sent. 167
is in the valid state (H).

FIG. 9 is a circuit configuration diagram showing a specific example of the power supply circuit 119.

601 is a comparison reference voltage generation circuit, VRl is its output, 6
02 is a voltage comparison circuit and outputs to the signal line 169. 60
3 is a comparison reference voltage generation circuit, and VR2 is its output, 60
4 is a voltage comparison circuit that outputs to the signal line 170. 606 is a voltage stabilizing circuit which outputs to a power line '158. 607 is a comparison reference voltage generation circuit, and VR3 is the output thereof. 608 is a voltage comparison circuit that outputs to the signal line 171. 605 is a contact circuit for contacting the current supplied to the voltage stabilizing circuit 606.

Next, the operation of the power supply port and path 11°9 will be explained.

When a battery is used as the power supply circuit 117, the comparison voltage VR1 is the battery final voltage (the lowest operating voltage of the load side circuit,
The voltage is set to be slightly higher than the voltage of the voltage comparison circuit 60 of the signal line 169.
An output of 2 indicates that the battery is near the end of its life (eg, one week before the end of its life).

Since the information immediately before the end of the battery life on the signal line 169 is transmitted to the center via the memory card 127, the center can deliver the battery for conversion to the orderer.

The comparison voltage VR2 is set to be equal to the battery end voltage, and the output of the voltage comparison circuit 604 on the signal line 170 is a battery life end warning to the main control circuit 118.
This signal causes the main control circuit 118 to inevitably enter samurai operation and continue in that state thereafter. The comparison voltage VR3 is set equal to the highest voltage during the life of the auxiliary battery 128, that is, the initial output voltage, and the output of the voltage comparison circuit 608 on the signal line 171 is applied to the contact circuit 605 to supply power. The power supply line 15B is disconnected to prevent power from being supplied to the power line 15B, and the power supply is switched to the auxiliary battery 128 side.

The contact surface of this power supply line 158 will be briefly described. The contact circuit 605 consists of a contact portion that brings the power line 156 and the power line 610 into contact, and a control portion that controls the contact portion.This control portion receives the signal FS! The output of the voltage comparator circuit 604 marked fJtl by 170 and the signal line 1
71 and the output of the voltage comparator circuit 608. Therefore, when a battery (main battery) capable of outputting an output higher than the final voltage is installed as the power source 117, the voltage of the signal line 170 increases. The output of comparison circuit 604 becomes high level, and contact circuit 605 becomes conductive. Therefore, the voltage comparison output of the voltage comparison circuit 608 outputted via the signal line 71 becomes high and 4'.

After that, when the voltage of the battery of the power supply] 17 drops below the final voltage VR2, the voltage comparison output of the signal line 170 becomes low level, but since the voltage of the battery does not drop suddenly at that point, the signal line 171 The output of the voltage comparator circuit 608 remains at a high level, and the contact circuit 605 maintains a conductive state.

The battery voltage of the power supply 117 drops roughly, and the voltage stabilization circuit 6
When the output of 06 becomes lower than the comparison voltage VR3, the signal line 17
Since the voltage comparison output outputted to the terminal 1 becomes low level and the contact circuit 605 becomes non-conductive, the power supply line 158 quickly becomes a non-output state.

The reason why the power supply line 158 must be brought into a non-output state quickly is that in FIG.
The power source is a power line 1 backed up by an auxiliary battery 128.
72, and these three types of buffer circuits use 0MO3 (complementary metal oxide semiconductor) logic elements as actual circuit elements, and the high level of the input is near the power supply voltage. At the low level, 0N10FF operation is performed near the common signal line (so-called GND) level, and if the input signal level is at an intermediate level, a large through current will flow.

If the voltage on the power line 158 were to drop slowly as the battery wears out, the voltage on the power line 172 would keep the level of the input signal to the interface circuit 124 at the intermediate level for a long time, causing the backup The auxiliary battery 128 (FIG. 1) will quickly become exhausted.

Note that the common line 612 in FIG. 9 is omitted and not shown in FIG. 1. Further, the input of the interface circuit 124 is connected to the GND line through a pull-down resistor, and is fixed at the GND level when the power line 158 is in a non-output state.

FIG. 10 is a circuit configuration diagram showing a specific example of the boost power supply circuit]]5.

660 is a power supply disconnection circuit controlled by the main control circuit 118 through the signal line 157, and only during communication.
By connecting the power lines 156 and 661, unnecessary power consumption is prevented 11, and this is particularly effective when a battery is used as the power supply circuit 117. 650 is a comparison reference voltage generation circuit, 651 is a voltage comparison circuit, 652 is a square wave oscillation circuit, 653 is a logic inversion circuit, 654 is an AND circuit, 655, 656, 657 and 658 are contact circuits, and 659 is a voltage stabilization circuit. It's a circuit. The operation of these circuits will be explained below.

The main operation of the boost power supply circuit 115 shown in FIG.
5 outputs a constant voltage to the voltage V1WA154, and in order to further increase the voltage conversion efficiency, it is selected whether to double or triple the voltage depending on the voltage of the input power line 661. Especially necessary. Comparison reference voltage generation circuit 65
The output VR4 of 0 is set to a voltage value that allows the voltage comparison circuit 651 to detect the input voltage when the output voltage during the double boost operation becomes lower than the desired output voltage. The contact circuit 655 is conductive when the input signal on the signal line 664 is at a low level, and is non-conductive when the input signal is at a high level.
When the input signal on the signal line 664 is at a low level, it is non-conductive, and when it is at a high level, it is conductive. The contact circuits 657 and 655 operate in the same manner as the contact circuit 658 and the contact circuit 656.

,/'l.

In the triple boost operation, when the contact circuits 656 and 657 are first conductive and the contact circuits 655 and 658 are non-conductive, the power supply line 661 → diode D50 → capacitor C50 → disconnection circuit 656 → Capacitor C50 in the path of common line 662
is charged. Next, when the contact circuits 655 and 658 are conductive and the contact circuits 656 and 657 are non-conductive, the power line 6
61 → disconnection circuit 655 → capacitor C50 → diode D51 → capacitor C51 → disconnection circuit 658 → common line 6
62, the capacitor C51 is charged to a voltage twice the input voltage (more precisely, the voltage after subtracting the voltage drop in the contact circuit and the diode). Next, when the state of each contact circuit returns to the same state as the beginning, in addition to charging capacitor C50, power supply line 661 → disconnection circuit 657 → capacitor C51 →
The capacitor C52 is charged to a voltage three times the input voltage through the path of diode D52 → capacitor C52 → common line 662 (more precisely, the voltage obtained by subtracting the voltage drop in the contact circuit and the diode). After that, the above operation is repeated.

In the double boost operation, the input of the AND circuit 654 is applied via the signal line 663 (voltage comparator circuit 65°; output of 1).
is low level and the contact circuits 657 and 658 are controlled to a static state, and first the contact circuit 6
When 55 is non-conducting and 656 is conducting, capacitor C
50 to the input voltage. Next, the contact circuit 655
When 656 is conductive and 656 is not conductive, the input voltage plus the voltage stored in capacitor C50 is applied to diode D.
53 (the diode D53 is a bypass diode for halving the voltage dropped by the two diodes D51 and D52 during double boost operation). This operation is repeated thereafter.

FIG. 11 is a circuit configuration diagram showing a specific example of the main control circuit 118 that performs an important function in the present invention.

701 is a timer circuit that periodically outputs a key scan signal to the signal line 720. 702 is ',1. <Figure 1) In addition to reading the pressed state of the key, the -: input monitoring unit reads the state of the voltage drop monitoring output of the power supply applied through the signal lines 169 and 170 or the installation state of the memory card 127 through the detection line 164. It is.

703 receives a press signal of the control key 120 (FIG. 6) via the signal line 159, or receives a start signal output from the clock circuit 126 via the signal line 167,
When it is in the valid state = on, it is a starting section that sends out a starting signal to the signal line 747 to start the operation of the overall control section 708 included in the main control circuit 11 .

708 is based on the control input signal including the key press signal sent by the information line 721 from the input monitoring unit 702.
This is a general control unit that starts various control units described below, performs post-processing after the various control units complete their operations, and performs control to return to a standby state.

704 is a signal line 146 according to instructions from the general control unit 208.
, the contact circuit 104 is turned on to close the DC circuit of the communication line, and at the same time, the contact circuit 129 is turned on via the signal line 14-6', the polarity reversal detection circuit 101 is operated, and the dial is turned on. A speaker 111 (for outputting signals via the information line 150 and monitoring communication sound)
(Fig. 1) is a line control unit that controls whether or not to supply communication sound.

705 is a signal line 157 according to instructions from the general control unit 708.
After supplying power to the modulation/demodulation circuit 114 via the boost power supply circuit 115 and contact circuit 116, the RAM
125 through the information line 166, outputs it to the modulation/demodulation circuit 114 through the information line 153, performs communication control according to a predetermined communication procedure, and completes sending of the transmission data. After that, the real time data is received from the center side and stored in RAM1.
This is a communication control unit that performs operations such as writing and reading to the 25.

706 corrects the counter circuit 551 (FIG. 8) included in the clock circuit 126 according to the instructions from the general control unit 708, if there is new real time data, and also corrects the counter circuit 551 (Fig. 8) included in the clock circuit 126 if there is new alarm time data. 553
(FIG. 8) is a time setting section which sets the time via an information line 68.

, 707 activates the memory card 12 in accordance with the activation signal from the general upper surface unit 708 applied via the signal line 729.
The transfer control section extracts the downlink control information stored in the 7 via the information line 165, copies it to the RAM 125 via the information line 166, and outputs a return signal indicating completion of copying via the signal line 730.

709 receives instructions from the general control unit 708 via the signal line 731 and controls writing initial data into the RAM 125 via the information line 166 when starting the operation of this data input device, and instructs the user on the input procedure. This is an initial setting section that performs display control for changing initial data, and initial data change control when a memory card 127 having special control information for roughly changing initial data is inserted.

710 receives instructions from the general control unit 708 through the information line 741, searches for guidance information stored in the memory card 127, displays it through the display circuit 122, and stores data input based on the guidance information in the RAM 125.
This is a registration control unit that registers the data in the upstream data storage section of Memory/Power=D12.7.

711, under the instruction of the general control unit 708, searches upstream data that has already been registered and stored in the RAM 125 in the input order or directly by specifying a number, regardless of whether it has been sent or not. This is a search control unit that performs operations for performing and displaying operations and for confirmation operations.

712 reads, through the information line 165, the right-hand light-limited visit information stored in the currently installed memory card 127 according to the instructions from the general control unit 708, and also reads the current time from the clock circuit 126. It is read through the line 168 and is valid if there is a person within the valid curfew at the current time;
If it is not entered, it is invalidated and this is indicated by the general control unit 70.
8 via the credit line 740.

713 passes symbols, numbers, and character codes to the display circuit 122 via the information line 161. In addition to V operation, it also outputs operational warnings and voltage drop monitoring output applied via the signal lines 169 and 170. A display control unit receives a warning based on the control code, or a warning regarding the communication state, as a control code through the information line 745, and transmits a warning message corresponding to the control code to the display circuit 122 through the information line 161. It is.

Reference numeral 721 is an information line for transmitting key press information or a voltage start signal, and reference numeral 741 is an information line for transmitting symbols, numbers, and character codes to be displayed. 168 is an information line for transmitting time data; 165 is an information line for inputting and outputting data to and from the memory card 127; 166 is a RAM 125
This is an information line for inputting and outputting data.

FIG. 12(a) shows the internal configuration of the RAM 125.

801 is a control memory for temporarily storing control information (so-called flags) when information is input/output between each control unit in the main control circuit 118; 803 is a communication buffer that temporarily stores the data to be sent and sends the same data again when a retransmission request is received from the center due to an error during communication. 804 is a temporary memory part for alarm time; 805 is a permanent memory part for the user number input at the time of initial start setting;
06 is a temporary storage part of the communication center telephone number stored in the memory card 127, and 807 is the item configuration (
The portions 808 and σ 809 that temporarily store the data in FIG. 12(b)) are backup information storage portions that store two pieces of registered data for transmission.

Below, I will explain the rough, backup, and information storage units.
If the transmission data created by referring to the currently installed memory card 127 is called the current backup information, and the data created last time is called the previous backup information, then, for example, the backup information storage section 808 is the current backup information. If the memory section 809 has stored the previous copy information, and the memory card 127 whose content is information with a new curfew (current copy information) is inserted, the information is recorded. The portion 808 is the storage portion for the previous copy information, and the storage portion 809 is the storage portion for the current copy information, and the previous and previous copy information stored in the storage portion 809 is erased.

In other words, the latest information storage section is alternately replaced.

By the way, this backup information is conventionally recorded and output on paper using a printer, but compared to printers that consume a lot of energy in the first year of high school, the RAM 125 is made up of semiconductor memory and the display circuit 122 has no moving parts. The method of outputting backup information using ' is superior in terms of durability and cost and volume.

FIG. 12(b) shows the storage structure of individual items stored as backup information 808 or 809.
1 is a product number (hereinafter referred to as product number), 822 is a specific product name (hereinafter referred to as product name), and 823 is a unit price of the product, and these are data obtained by referring to the memory card 127. 824 is the number of ordered drops input by the user (hereinafter referred to as the input number).

>, 825 is the communication control unit 705 to identify whether it has been sent or not (that is, whether it has been received by the center side).
This is an identification symbol written by.

FIG. 13(a) illustrates the internal configuration of the memory card 127.

841 is a portion that distinguishes whether the storage circuit 504 of the memory card 127 is readable/writable or readable only; 842
843 is a part that stores the expiration date, that is, the start date and end date of use, and 843 is a part that specifies the sending time when this data input device automatically sends data to the center (see Fig. 12). a>Wake-up time 804 is a copy of this data>, 844 is a part where the telephone number of the center to which the transmission data is sent is stored.

845 is the next 03 types of information, that is, the number of digits of the product number 821 in Figure 12 (b), the number of characters in the product name 822, and the single fiIli.
Item configuration information 807 that defines the number of digits in 823 and the number of digits in input number 824, the storage start number (multiple addresses) of the product menu described below, the number of items included in the product menu, uplink information, etc. This is the part that stores the start address information of the part to be stored, and 846, 847, 848
and 849 is a part for storing the product menu, 8
51 is upstream input information including the number of ordered items, that is, the product number 871 and the input number (ordered number) as shown in FIG. 13 (C).
This is a part for storing information configured in 872.

852 is a copy of the user number 805 permanently stored in the RAM 125, and is used as an identification number for uplink information. 853 is information indicating that the battery in use is nearing the end of its life ("3% output means was explained in Figure 9. Also, the timing of detection and judgment is based on the battery output voltage with the highest current consumption. This is the part that stores the information immediately before the end of the battery life (which is determined at that time by the communication control unit 705), that is, when the modulation/demodulation circuit 114 is operating. Although it is assumed that the information is transmitted via the memory card 127, it is also possible to transmit this together with the ordering information to the center via the communication line as upstream information.

Here, the parts 846, 847.
848 and 849 will be briefly explained. Each item on the product menu is numbered 8 as shown in Figure 13(b).
61, product name 862, and unit price 863. One variety contains many items, and each item is stored by variety, such as vegetables, fish, meat, juice, etc.
They are categorized as daily necessities, electrical appliances, and books, and within each variety name, for example, vegetables are listed as cabbage, carrots, lettuce, green peppers, and onions, and each item is numbered in order. (product number) is attached. This is the part shown in FIG. 13(a).

Although only two products A and B are shown in FIG. For example, the address where the product name 846 or product name 8848 is stored is stored as the menu head address, and the number of items for each product type is also stored.

As can be seen from the above description, the product name storage address and the number of items for each product type can be changed, and the configuration of the product menu is changed every time the memory card 127 is changed.

Above, the overall configuration is shown in Figure 1, and Figures 2 to 13.
Although we have explained the operation and function of each circuit using the diagram,
Next, the functions of this data input device that organically combine these operations will be explained.

The basic functions of this data input device are memory card B12.
Enter the order quantity for each item while referring to the product menu (downward guide information) stored in 7, and when the input task is completed, press the communication key 402 to send the data to the center. be.

The functions required in these processes are: firstly, the initial settings for registering the user number, and secondly, the memory capacity.
Sequential scroll keys 407 and 408 while referring to the product menu stored in the card 127 (Figure 6)
After calling the screen 401, there is a card reference input function for inputting the order quantity.Thirdly, after knowing the product number by referring to a stamp III product such as a catalogue, enter the product number directly.Screen 40
1) a catalog reference input function to call up the desired product name and enter the order quantity; 4) a current confirmation function to check the current copy of the entered copy information; and 2) confirmation of the track record information. 11a batch confirmation function, fifthly, a function to dial the center, a communication function consisting of a function to send only unsent information among the information and mark it with a sent symbol, and a function to receive real time data. 6, an automatic communication function that refers to the wake-up poem 1804 and automatically starts the above-mentioned communication function at that time; and 7, although it is not an essential function of this data input device, it monitors the signal sound. There is a manual communication function in which dialing is performed manually using a means consisting of an amplifier circuit 110 and a speaker 111 to input a numerical value while listening to the other party's response voice. This manual communication function can be used for checking deposit balances, which is a necessary part of banking services.

Display examples for explaining each of the above functions are shown in Figures 14 to 16.
Flowcharts showing the flow of operations of each function are shown in FIGS. 17 to 24 and will be described below.

Figure 14 explains how to select each of the above functions (excluding the communication function), and Figure 17A and 1
FIG. 7B is a flowchart showing the flow of operations when selecting each function, and will be explained using this flowchart.

When the control key 120 (FIGS. 1 and 6) is pressed, the press signal is applied to the activation section 703 via the signal line 159, and the activation signal is outputted to the general control section via the signal line 747. 708 (FIG. 11).

When menu key 403 is pressed, memory card 1
The input monitoring unit 702 monitors whether or not 27 is attached using the detection line 164 (31001, FIG. 17A),
If detected (S100'1 YES>), a detection signal is applied to the overall control unit 708 via the information line 721.

Therefore, the overall control unit 708 activates the card matching unit 712 via the signal line 739. The card collation unit 712 reads the deadline information 842 of the memory card 127 via the information line 65 (31002), reads the current time from the clock circuit 126 via the information line 168 (51003), and reads the current time from the clock circuit 126 via the information line 168 (51003). If the deadline information 842 is within the deadline (51004), and if it is within the deadline (S1004 YES), a menu screen 911 as shown in FIG. 14<a> is displayed (31005).

If the display screen does not display the desired function (S10
11NO, Figure '17B>, press the scroll key 408 (S1016), menu screens 912, 913,
914,915 or scroll key 407
Press to display in the reverse order (31017).

Or, enter the menu number (M2, M3, etc.) as a number.
Input using the direct key 406 (S1014) and directly select the menu with the designated number (31015).

In step 51001, memory card 1
, 1' 27 or not installed (No. 31001>, as shown in screen 916 of FIG. 14(b), the screen 916 of FIG.
, the process moves to the next step 51008. Step 510
04, if the memory card 127 is not within the time limit (31004NO), screen 9 of FIG. 14(b)
17, the memory card 127 brightness limit is displayed for a short time (51007), and the next step 810
Move to 08. In step 51008, the menu is limited to those that do not require the memory card 127 to be installed (31008), and the screen 91 in FIG.
8 is displayed, and by pressing the scroll key 408, the screen 919 and further 920 are displayed (S1005).

In step 31011, if the desired function is displayed (31011 YES>), when the execution key 411 is pressed (S1012), the specified function is started (S10
13).

The procedure for selecting the initial setting function is shown on various screens in FIG. 14(C) and in flowchart 7 in FIG. 18.

[' After pressing the menu key 403, enter the menu number 1 (the initial settings are only performed once before starting operation, so do not select using the scroll key 408, but select by inputting the menu number 1). ).

The initial setting function is started from the general control unit 708 via the signal line 731, and when a signal is output, the initial setting function is activated by the initial setting unit 769.
After inputting the activation signal on the signal line 731, the initial setting unit 709 performs a user number authentication operation (S1041, FIG. 18), and if the user number has been authenticated (S1
041YES>, display that the user number has been certified (
S1047). If it is not certified (31041NO
>, the screen 921 shown in FIG. 14(C) is displayed and the user is prompted to input the user number (S1042). Next screen 9
When a user number like 22,923 is input (S1
043), display them sequentially 31044), and then press the execution key 411 (S1045).
Write to storage location 805 of AM125 (51046)
. Thereafter, even if a start signal is input via the signal line 731, a warning message indicating that the initial settings have been completed will be displayed (31047).
, it operates so that the user number cannot be changed.

After the operation is completed, a return signal is output via the signal line 732, and control is returned to the general signal section 708.

The card reference manual function is executed by the procedures shown in the various screens shown in FIG. 15 and the flowcharts shown in FIGS. 19A and 19B. Signal line 7 from general control unit 708
This is a function controlled by the registration control unit 710 that receives an activation signal via 33.

When the activation signal is received via the signal line 733, the downlink control information 845 (FIG. 13(a)) of the memory card 127 is referred to, and the location where the product name is stored is learned, and the product name is stored in that location. (31061, 19th
A), the product name is displayed as it is through the display control unit 713 as shown in the screen 930 in FIG. 15(a) (31
062). If you wish to terminate there (31063
YES), press the return key 410 (S'1069).

If you do not wish to exit (31063 NO>, the desired product type is not displayed) (81064 NO>, press the scroll key 408 31070), move the location where the next product name is stored to the bottom of the memory card 127. The control information 845 (FIG. 13(a)) is referred to and known (Sl 0
71. Sl 061 ), the screen 931 is displayed in the same manner as above (31062). Similarly, if a product name storage location exists, screens 932, 933, and 934 are displayed. Next, the desired variety is displayed (3106
4YES), For example, when the execution key 411 is pressed on the screen 930 (S1065), the display moves to each item, and individual item information as shown on the screen 935 is displayed (
31066.51067). Below, scroll key 4
When 08 is pressed, individual items are displayed one after another as shown in screens 938 and 939.

If you wish to display a different variety (S1068YES)
), press the return key 410 31072) Step 3
Return to 1061.

Next, when the desired item is displayed (31068NO
, 31080YES, Fig. 19B), and press the numeric key 406 (31081), the order quantity display position 943 (first
At the same time as the numerical value is displayed in FIG. 5(C)), the total amount is displayed in the total amount display position 944 (FIG. 15(C)) (the specific example of 31082 is screen 936). Next, when the execution key 411 is pressed (S1083), all information except the total amount displayed on the screen is written to the current copy information storage portion (808 or 809) of the RAM 125 (31084). Next, look at the type 841 of the memory card 127 (31085), and check the type 841 of the memory card 127.
If 7 is readable/writable (RAM) (S1085YES)
), the product number and order quantity are written in the upstream information storage section 851 of the memory card 127 (31086). When the writing is completed, the next item is displayed, that is, the screen 937 in FIG. 15(b) is displayed (31089.51
066, S”1067).

From the individual item display state (S1067) to the product name display state (
31062), press the return key 410 (S1072). If it is not the desired item in step 31080 (8108ONo), press scroll key 4.
Press 08 or 407 to select the next item 3108
8), can be displayed (S1066.51067
).

Figure 15 (C) shows the screen configuration when displaying items, where 940 is the product number, 941 is the product name, 9'42 is the unit price, 943 is the order quantity, 944 is the total amount, and 945 is explained later. This is to display whether the message has been sent or not during the confirmation job function. The σ record control unit 710 is operated by menu key 4.
When 03 is pressed, a return signal indicating the end of the operation is output via the signal line 735.

The catalog reference input function is executed by the procedures shown in the various screens shown in FIG. 15 and the flowcharts shown in FIGS. 20A and 208.

This is a function controlled by the registration control unit 710 that receives a start signal from the general control unit 708 via the signal line 734.
The screen 946 shown in FIG. 5(d) is displayed and the product number input is prompted (S1101, FIG. 20A). When a product number is input (S1102), the product menu is searched for a product number that matches the product number (51103), and it is displayed (31104). For example, the screen 935 (Fig. 15(b)
), the number of ordered items is keyed in (S1105), and the number of ordered items and the total amount are displayed (S1106).

'If the RAM 125 and memory card 127 are readable/writable (RAM), press the execution key 411 (311
11>, current backup information storage part 808 of RAMI 25
Or write to 809 (S'1112>, detect that the memory card 127 is RAM (Sl 11
3YES), write the order data to the upstream information storage section 851 of the memory card 127 (S1114), and if you wish to finish (S11'l 5YES), press the return key 410 (S1116) to return to the screen 946. .

In step 51113, if the memory card 127 is not RAM (31113NO>, step 51
115. In step 51115, the screen normally moves to the product number manual screen 946 (81115NO,
Sl 101).

The full batch confirmation function is available on various screens in Figure 16 and in Figure 21.
It is executed according to the procedure shown in the flowchart in the figure. This is the search fee 611! which received the activation signal from the general control circuit 708 via the signal line 736! When a start signal is received via the signal line 736 by a separate function controlled by J711, the copy information storage section 808 or 809 (as already explained, either the copy information storage section 808 or 809 for all sessions) is stored in the RAM 125. ) is read out (S1131, FIG. 21) and displayed, for example, as shown in screen 951 in FIG. 16 (S113).
2). If you wish to end it (S1133YES),
The return key 410 is pressed (S1134). Next, if you do not wish to exit (Sl 113 NO>, and if you select sequential display (S1135 YES), press the scroll key 408 81136), then display the backup information in the order in which it is stored on the screen 952, 953, 954. <51137.51131.51132).

If you do not wish to display the item sequentially in step 51135 (Sl 135 NO>), press the * mark key in the numeric keys 406 (S1138), enter the product number of the item to be confirmed (31139°51140), and directly select the item. Items matching the product number are displayed as shown in screen 955 (S1141. Sl 131, Sl 132).

Sent mark on (C>)! The product quality marked with
Indicates that it has already been sent to the center,
Mark sent! Items like those shown on screen 954 without a mark have not yet been delivered to the center for some reason (for example, they were stored in R△M125 but not sent, or could not be sent due to a communication error, etc.). Show that.

This sent mark! 12(b) Identification symbol 82
5, and the communication control unit 705 manages the identification symbol 825. In addition to displaying the sent mark while stored in the communication control unit 705 as described above, if the item has already been sent, the product number of the item can be highlighted (
It may be displayed in a way that is easy for the user to understand, such as by displaying white characters.

The previous confirmation function is a function that performs the same operation as the current confirmation function shown in FIG.
This is done by receiving an activation signal via 37.

When the search is completed and the menu key 403 is pressed, the search control unit 711 outputs a return signal via the signal line 738.

``The manual communication function is a feature of the present invention.
This is executed according to the procedures shown in the flowcharts of FIGS. 22A and 228.

As already explained, this function is used when receiving a bank's deposit balance inquiry service, etc., and is shown in Figure 14 (
In a), when the execution key 411 is pressed while the screen 915 is displayed, the overall control unit 708 executes the line control unit 7.
04 via the signal line 723. The line control unit 704 then connects the contact circuit 104 to the signal line 146.
31151 to close the communication line by making it conductive through
), and the contact circuit 109 is brought into conduction via the signal line 151 to be in a signal sound monitoring state (S1152). Next,
Looking at the output of the input monitoring unit 702 sent via the information line 721, if a dial number is input using the numerical key 406 (S1153), the vl value is passed to the dial signal generation circuit 112. Dial signal generation circuit 11
2 outputs a dial signal to the communication line connected to the signal line 14o', 141 (Sl'154) in the manner described above.

``Then, the line control unit 704 outputs the signal to the signal line 144 (*The output state of the gender reversal detection circuit 101 should be monitored until chronic reversal occurs. S1156NO),
When the polarity is reversed (S1156 YES), the mode control circuit 203 of the dial signal generation circuit 112 is instructed to fix the mode in which the MF low signal is output as a dial signal (31157). Minoru is speaker 11
Follow the & voice guidance flowing from (31161),
If the F<Ia flat key is pressed (31162), the MF low signal is sent out (Sl 163), and this work continues (
31164NO>, if the desired purpose (balance inquiry) is achieved (31164YES), press the OFF key 404 (51165), and the signal tone monitor is turned off (S1166).
), the contact circuit 104 is turned off to open the communication line (S1'167), and the work such as checking the balance is completed.

The communication function is executed by the procedures shown in the flowcharts of FIGS. 23A, 238, and 23C.

1゛＼ When the communication key 402 is pressed (Sl 201 >), the overall control unit 708 is activated (S1202).

7 Determine whether the alarm time (804 in FIG. 12(a)) is enabled or not.
2, the central control unit 708 uses the communication key 402.
(Sl 203YES).

If the alarm time 804 is not set to valid (31
203NO>, check whether there are any unsent items in the current backup information in RAM"l 25. Sl 204,
Sl 205>, if there are no unsent items (31
205NO>, display that all have been sent (
S1211>.

If there is an item that has not been sent yet (Sl 205YES), a start signal is output via the signal line 722, and the line controller 7
04 is activated (S'120'6) and outputs the output of the line usage detection circuit 103 sent out via the signal line 145 (S'120'6).
l 207>, if the communication line is not in use (3
1208NO), if the contact circuit 104 is made conductive to close the communication line 31209), if it is used (312
08YES), the subsequent work is interrupted, a warning message is displayed on the screen 401, and the process returns to the original state (S1212>).

After making the bottom circuit 104 conductive, the contact circuit 1 is made conductive so that the user can monitor the communication sound 3121
0>, then the center telephone number 806 (FIG. 12(a)) stored in the RAM 125 is referred to and the telephone number is passed to the dial signal generation circuit 112 (S1221).

After sending the dial signal (31222>, check the output sent from the l'5 characteristic reversal detection circuit 101 via the signal line 144 (S1223) and judge whether the other party (center) has responded. Sl224>, respond. If you did (312
24YES), a return signal is issued via the signal line 72.4, and the control right is returned to the overall control unit 708 (31225).

If there is no polarity reversal and no response (31224No), the call continues for a predetermined period of time (3123ONO).

Sl 224NO>, after a predetermined time (31230
YES), the contact circuit 104 is turned off and the communication line is opened (S1231>).

The overall control unit 708 continues to output an activation signal to the communication control unit 705 via the signal line 725 (S1226). The communication control unit 705 then energizes the power lines 154.5 and 155 of the modulation/demodulation circuit 114 via the signal line 157.
227>, battery life; signal line 16 indicates whether it is about to end or not.
9. The input monitoring unit 702 makes a judgment via the information line 721,
If the life is about to end, a flag is set in the control memory 801 (31228>), then the current copy information 808 or 809 is read out from the RAM 125, and the sent mark (items without the mark in Fig. 16) is set. 5 to the communication buffer 802 (FIG. 12(a)).
1229), when the transfer is completed, the contents of the communication buffer O 802 are transmitted to the center through the modulation/demodulation circuit 114 according to a predetermined communication procedure (S1241.
(Figure C) After that, if you do not receive a response signal from the center indicating that reception is complete (31242 NO>, open the communication line (31250). If you receive a response signal (Sl
242 YES), the sent mark is stored in the identification symbol storage section 825 of the item that is required in the current backup information storage section corresponding to the item pulled out to the communication buffer 802 (31
243). Roughly speaking, real time data is received from the center (31244), it is stored in the reception time storage section SO3 of the RAM 125, and a flag indicating that a new time has been received is stored in the control memory 801 (FIG. 12(a)). 31245) and open the communication line (Sl.
246>, a return signal is output via the signal line 726, and control is returned to the overall control unit 708 (31247>.

The overall control unit 708 continues to output a start signal to the time setting unit 706 via the signal line 727 (31248>), and sets the counter circuit 551 of the clock circuit 126 to the real time (RAM 12
5 content of reception time storage part 803).
49>, the time setting unit 706 outputs a return signal via the signal line 728. Further, if the flag indicating that the battery life is about to end is set in the control memory 8Q1, the overall control unit 708 writes information about the end of the battery life to the battery information section 853 of the memory card 127.

The white shift communication function is executed by the procedures shown in flowcharts 1 to 1 in FIGS. 24A, 24B, and 24C. This entertainment is a copy of the transmission time storage section 843 (FIG. 13(a)) of the memory card 127.
It is an entertainment that refers to the alarm time a'18Q4 on Mco 25 and automatically transmits at that time.

2. The reason why the alarm time is stored in the RAM 125 is to ensure that it does not matter if the memory card 127 is removed. Furthermore, if the alarm time is stored in an invalid data format (for example, a time that cannot exist), the automatic communication 1 function will not work. The alarm time is always set by the general control section 708 through the time setting section 706.

The alarm circuit 553 compares the actual time and the alarm time (S1301, 31302 NO), and if they match (S1302 YES), a start signal is outputted via the signal line 167. Therefore, the startup unit 703
l 303), the general control [5708 is activated (31
304>. The overall control unit 708 receives the activation signal from the control key 12.
0, that is, after confirming that it is an automatic communication function, the same operation as the communication function described above is performed.

The overall control unit 708 should check whether there are any unsent items in the current backup information in the RAM 125.
1306), or (31306) if there are no unsent items.
NO>, end the work.

If there are items that have not been sent yet (31306 YES), a recording signal is output via the signal line 722, the line control unit 704 is activated (S1307), and the line usage signal is output via the signal line 145. Detection circuit] Look at the output of 03 (
S1308), if the communication line is not in use (31
309NO>, connect the contact circuit 104 to close the communication line 51321, Fig. 24B), and if it is in use (S1309YES), wait for the line to become free until a predetermined time elapses (3131ONO, 51308 ,5
1309YES>, when the predetermined time has elapsed (31310
YES＞, end the work.

After closing the communication line (31321), RAM125
Read the center telephone number stored in (813
22), passes the telephone number to the dial signal generation circuit 112;

When the dial signal generation circuit 112 sends out a dial signal, it checks the output from the polarity reversal detection circuit 101 via the signal line 144 (31324) and determines whether or not the other party (center) has responded or not. Please judge by 3
1325), if there is a response (S1325 YES), a return signal is issued via the signal line 724, and the control right is returned to the general control section 708 (S1326). If there is no polarity reversal and a response cannot be confirmed (81325NO>), continue calling for a predetermined time (31325NO, 31331NO, 5
1324), after a predetermined time has passed (S1331YES>
, turn off the contact circuit 104 and open the communication line (S
1332).

The overall control unit 708 continues to output an activation signal to the communication control unit 705 via the signal line 725 (S1327). The communication control unit 705 first energizes the power lines 154 and 155 of the modulation/demodulation circuit 114 via the signal line 157 .
328), the signal line 169 indicates whether the battery life is about to end or not.
．． It is determined via the input monitoring unit 702 and the information line 721 that if the life is about to end, a flag is set in the control memory 801 (S1329), and the current backup information 808 or 809 from the RAM 125 is read out. communication buffer 8 only for items that are not marked
51330>, once the transfer is complete, transfer the communication buffer 8 to the center using the predetermined communication procedure.
02 is transmitted through the modulation/demodulation circuit 114 (S1
341. Figure 24C).

(7) Ql, if there is no response φ from the center indicating that reception has been completed (31342NO>), open the communication line (S1350).When a response signal is received (S1342Y
ES>, a sent mark is stored in the item identification symbol storage section 825 in the current copy information storage section corresponding to the item pulled out to the communication buffer 802 (31343
). Furthermore, the real time is received from the center (S'
1344), store it in the reception time storage part 803 of RAl'&'l 125, and store a flag indicating that the probable time was received in the control memory 801. 31345>, and connect the communication line. Open it (S1346),
A return signal is output via the signal line 726, and the control right is returned to the overall control unit 708 (S1347).

The overall control section 708 continues to output a start signal to the time setting section 706 via the signal line 727 (31348) and corrects the counter circuit 551 of the clock circuit 126 to the fixed time (51349), and the time setting section 706 outputs a start signal via the signal line 727. A return signal is output via the

Further, the general control unit 1 708 sets a flag indicating that the battery life is about to end in the control memory 801 (if the flag has been invaded, the battery information section 853 of the memory card 127
Write information immediately before the end of life to.

, 1. In the case of this automatic communication function, the line control circuit 704 is activated by the activation signal applied via the signal line 746, so the speaker 11
There is no monitor sound.

The first embodiment according to the present invention described above is about the case where the memory card 127 is used, but similarly to the RAM 125 instead of the memory card 127,
A method (second embodiment) may be considered in which a fixed storage means (hereinafter referred to as 2RAM) is provided inside the device and the downlink control information, product menu, etc. are received through a communication line. This second embodiment will be described below.

In the second embodiment, the second RAM includes the memory card 127 and the interface circuit 1 in FIG.
24, and the main control circuit 118 is connected to the information line 1.
65. A power line 172 without power outages is connected as a power source.

The internal configuration is shown in FIG. 13(a) as uplink input information 851.
, except for the user number 852 (the same information is stored in RAM 12°5).

The battery information 853 is sent together when the copy information in the RAM 125 is transmitted to the center, and the type 841 stores a distinguishing number indicating that it is read-only. This information has roughly the same function as the transmission time 843, and stores the reception time (month, day, hour, minute) for receiving the next valid downlink information (not shown). To receive downlink information such as product menus, press the menu key 403 and then press the communication key 402. The integrated control unit 708 activates and dials the line control unit 704 in the same manner as described above to initiate communication. To start the control unit 705, the signal line 72 in FIG.
The activation signal is activated by another activation signal (not shown) that is different from the activation signal applied via 5), and is performed according to a predetermined reception procedure.

In addition, when receiving downlink information automatically, that is, when the reception time is valid, reception is performed at the specified time, and manual reception by pressing the menu key 403 is invalidated.

[Effect of the Invention 1] As explained above, according to the present invention, after the other party's response, the mode is automatically switched to the MF signal output mode. You can receive balance seafood service. Further, according to the present invention, the above-mentioned balance seafood can be prepared using a circuit that is also used for other purposes, so there is no need for an audio signal receiving circuit such as a telephone circuit.

In other words, the amplifier circuit and speaker are installed so that the user can monitor the signal sound and confirm that the data input device is operating. The dial signal generation circuit is provided so that it can be easily handled by changing the settings for either the pulse signal or MF signal subscriber line. According to , there is no need for special operation keys for deposit balance seafood.
Does not give a sense of harmony to users who do not need seafood in their account balance. Since it is possible to realize such an easy-to-use data input device, the effects of the present invention are extremely large.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing the entire circuit configuration of an embodiment of a data input device according to the present invention, and FIG. 2 is a polarity reversal detection circuit 10' shown in FIG. 1.
1. A circuit diagram showing a specific example of the full-wave rectifier circuit 1021, the line use detection circuit 103, and the contact circuit 104. FIG. 3 shows the dial pulse sending circuit 1 shown in FIG.
05. Contact circuit 106. A circuit diagram showing a specific example of the MF signal sending circuit 107 and the DC closing circuit 108, FIG. 4 is the dial signal generating circuit 112 shown in FIG.
and a circuit configuration diagram showing a specific example of the dial type setting circuit 113, FIG. 5 is a circuit configuration diagram showing a specific example of the modulation/demodulation circuit 114 shown in FIG. 1, and FIG. key 120. An external view showing an example of the arrangement of keys and both sides of the display in the input key circuit 1211 and display circuit 122. FIG. 7 is an external view of the interface circuit 124 shown in FIG. 1.
and a circuit configuration diagram showing a specific example of the memory card 127, FIG. 8 is a circuit configuration diagram showing a specific example of the clock circuit 126 shown in FIG. 1, and FIG. 9 is a power supply circuit shown in FIG. 1. 10 is a circuit configuration diagram showing a specific example of the boost power supply circuit 115 shown in FIG. 1, and FIG. 11 is a specific example of the main control circuit shown in FIG. 1. A circuit configuration diagram showing an example; FIG. 12 is an internal configuration diagram of the RAM 125 shown in FIG. 1; FIG. 13 is an internal configuration diagram of the memory card 127 shown in FIG. 1; 16 and 16 are functional explanatory diagrams showing the relationships between various key operations and the contents displayed on the screen to explain the various functions of the device shown in FIG. 1, and FIG. 17A and FIG. Figure 17B is a flowchart for function selection, Figure 18 is a flowchart for initial setting function, Figures 19A and 19B are flowcharts for card reference input function, Figures 20A and 20B are flowcharts for catalog reference input function, Figure 21 is a flowchart of the current confirmation function, Figure 22A
22A and 22B are flowcharts of the manual communication function, and FIGS. 23A, 23B, and 23C are flowcharts of the communication function, and FIG. 24A. Figures 24B and 24C are flowcharts of the automatic communication function. 101... Polarity reversal detection circuit 102... Full wave rectification circuit 103... Line use detection circuit 104.106, 109, 116°123... Contact surface circuit 105... Dial pulse sending circuit 107.・・M
F signal transmission circuit 108...DC closing circuit 110...Amplification circuit 111...Speaker 112
...Dial signal generation circuit 113...Dial type setting circuit 114...Modulation/demodulation circuit 115...Boost power supply circuit 1
17...Power supply circuit 118...Main control circuit 119
...Power supply circuit 120...Control key 121)...
- Input key circuit 122...Display circuit 124...Interface circuit 125...RAM 126...Time S1 circuit 1
27...Memory card 128...Auxiliary battery 173.174, 177...Diode 184.18
5... Capacitor 140-149, 151, 152° 157.159, 162, 167° 169-171, 180-183... Signal line 150.
153,160,161゜165.166.168.176...Information line 154~
156, 158, 163゜172.175.178...Power supply line] 64...Detection line 201...Mode storage circuit 203...Mode control circuit 205...Dial control circuit 207...Dial Pulse generation circuit 208...M
F signal generation circuit 211...Dial signal output selection circuit 202.204
, 209, 210゜21'2...Signal line 2゛06...Information line 301...Control circuit 30
2...Modulation circuit 303.306...Filter circuit 304.307...Amplification circuit 305...Demodulation circuit 308...Carrier detection circuit 311-318...Signal line 401...Screen 402 ...Communication key 403
...Menu key 404...OFF key 406...Numeric key 407
．． 408... Scroll key 409... Correction key 410... Return key 411... Execution key 501... Address signal buffer circuit 502... Input/output data signal buffer circuit 503... Control signal buffer Circuit 504...Memory circuit 505...Backup battery 506...Diode 507...Connector 511
．． 512.514~516°52"3,524.526...Signal line 513.521
．． 522... Information line 550... Clock oscillation circuit 551... Counter circuit 552... Control circuit 553... Alarm circuit 56
0... Signal lines 561 to 563... Information lines 601, 603, 607... Comparison reference voltage generation circuit 6
02.604,608... Voltage comparison circuit 605...
Sakuramochi circuit 606...Voltage stabilization circuit 610...
Power line 611, 612... Common line 650...
Comparison reference voltage generation circuit 651... Voltage comparison circuit 652... Square wave oscillation circuit 653... Logic inversion circuit 654... AND circuit 655-658... Sakuramochi circuit 659... Voltage stabilization circuit 660...Power supply disconnection circuit 661...Power line 662...Common line 663~
665...Signal line 701...Timer circuit 702...Input monitoring unit 703...Starting unit 70)4
...Line control section 705...Communication control section 706...
・Time setting section 707...Transfer control section 708...Supervising side mais 709...Initial setting section 710...
Registration control unit 711...Search control unit 712...Card matching unit 713...Display control unit 720.722-740,746°747...Signal line 721.741,745...Information line.

Claims (2)

[Claims] (1) Polarity reversal detection for detecting connection of a communication line in a data input device having an input means for inputting data and a display section for displaying the data input by the input means dial signal generating means for generating either a pulse signal or a multi-frequency signal; speaker means for amplifying the signal sound on the communication line to make it audible; and an output of the polarity reversal detecting means. and control means connected to the communication line for controlling the dial signal generating means to generate the multi-frequency signal in accordance with the above. (2) The data input device according to claim 1, wherein the display section displays the function selected by the input means.