JPS6332304B2 - - Google Patents

Description

[Detailed Description of the Invention] This application is filed by the same applicant.
This is a modification of 52435.

That is, in Japanese Patent Application No. 51-52435, the applicant proposed that a telephone number information display device displays the telephone number (low-speed information) of the person to be called when the handset of the telephone is off-hook, and displays the telephone number of the incoming caller when the telephone handset is off-hook. He proposed a device that displayed the telephone number (high-speed information).

An object of the present invention is to use such a device to distinguish the telephone number of the called party (caller) from the past and the telephone number of the called party that is to be called from here, print it on the printer, and print it on the printer. An object of the present invention is to provide a telephone number display device that displays the previous telephone number and the telephone number that is calling from here.

The structure of an embodiment of the present application will be explained below.
The drawing is almost the same as Figure 1 of the above-mentioned Japanese Patent Application No. 51-52435, with the following modifications added to it.

That is, in the figure, L1 and L2 are telephone lines, LT is a line transformer for extracting data from the line,
NE and CDS are photocouplers for detecting ringing signals, TEL is a telephone, and HS1 to HS3 are switches that are linked to the switch on the above telephone.
1 is a ringing signal detection circuit; 2 is a charging/discharging circuit that is charged while the bell is ringing by the output of the ringing signal detection circuit and maintains the charge while the bell is interrupted; 3, the charging/discharging circuit is When it is first charged, it generates one pulse, and when it is reset by the input data receiving circuit 5, which will be described later, it generates one pulse at the next bell. This pulse is used to clear the display on the multi-digit display device 10, change the line in the printer 11, and start printing from the top of that line, as will be described later. 4 is a waveform shaping circuit for the data inputted via the line transformer LT, and 5 is a waveform shaping circuit for inputting data whose waveform has been shaped by the above waveform shaping circuit, and performs an error check such as a parity check to detect errors. If it is normal, one pulse is generated from the output terminal CO, and if it is normal, serial data is output from the output terminal IO. 6 is a data lock circuit, and as mentioned above, when the data is normal, the terminal is
After a predetermined length of data is output from OUT, the lock is applied to prohibit data input to the multi-digit display device 10 and the printer 11. constitutes a calling party telephone number detection means. Further, 7 is a dial tone detection circuit using a PLL or the like, and 8 is a diode bridge circuit for detecting dial pulses. The diode bridge circuit 8 and a NAND gate IC-66, which will be described later, constitute a calling telephone number detection means. ing. 9 is a one-shot pulse generation circuit that generates one pulse at the minimum pause during dial pulse generation; 10 is a one-shot pulse generation circuit;
It is a multi-digit display device using LED etc. CL is a clear terminal, DI is a serial data input terminal, GH
is the digit feed terminal. 11 is a printer, and when the terminal ST becomes H, it changes the line and is ready to print from the top, data for one character is serially input from DI, and immediately after this, the PC goes to H.
, it is configured to print a number (or symbol) corresponding to the above-mentioned data and then move on to the next digit, and all of these are already commercially available and well-known. Also, RS is a specially provided terminal for the ribbon shifter, and when this terminal becomes H, it drives a built-in solenoid (not shown) to switch to the red ribbon, and when it becomes L, it switches to the black ribbon. It is intended to have the effect of Also, IC-66 is a NAND gate, IC-67 is a Noah gate, IC-84 is a flip-flop, and IC-88 is a flip-flop.
is a hexadecimal counter. Further, 12 starts charging when the output of the dial tone detection circuit 7 detects a dial tone and the contact HS3 which is off-hook and interlocks with the switch switches to the left side, and when this state has elapsed for about 1 second, This is a time constant circuit whose output changes from H level to L level. or,
IC-92 and IC-93 are inverters and flip-flops provided to switch the red and black ribbons mentioned above.

Next, the effect will be specifically explained. First, the parts known in the above-mentioned Japanese Patent Application Laid-Open No. 52-135207 (Japanese Patent Application No. 51-52435) will be briefly described. When a calling signal arrives from a third party, it is detected by the neon NE, the photoreceptor CDS, and the calling signal detection circuit 1, and the charging/discharging circuit 2 is charged. This charge is charged to a predetermined value at the first call signal, and then one pulse is generated from the one pulse generation circuit 3, and this pulse is generated by the OR gate IC-
91-1, 3, multi-digit display device 1 via terminal CL
The display of 0 is cleared, the line of the printer 11 is changed via the terminal ST, the head is moved to the starting position, and the printer is set in a state where it can print from the top. Approximately 3 seconds after the ringing signal stops ringing
Since the charging/discharging circuit 2 is set to be in a charging state for a second, only one pulse is generated if no error occurs in the telephone number information, which will be described later. Immediately after the first ringing signal stops ringing, the telephone number information corresponding to the caller's telephone number is sent from the station. This waveform is shaped by a waveform shaping circuit 4 via a capacitor C1, a line transformer LT, and a capacitor C2, and after low-level noise is removed, it is introduced into an input data receiving circuit 5. This is composed of a circuit such as the well-known TMS-6011 (UART), which performs error checks such as parity checks, and when this circuit determines that the above information is accurate, it makes a serial call from the output terminal IO. Outputs the number information and connects it to the input terminal IN of the data lock circuit 6.
2. Output terminal OUT, 2 of NOR gate IC-67,
4 to the data input terminal of the multi-digit display device 10
Introduced to DI. This is also introduced to the data input terminal DI of the printer 11 when the printer 11 is connected.

On the other hand, the above telephone number information is shunted from the output 4 of the above IC-67, and is connected to the resistor R21 and the diode D.
8, the capacitor C13 is charged, and the input side of the single pulse generation circuit 9 is held at H level. When the charge of C13 is discharged during the minimum pause after inputting the first digit of telephone number information (it may be a letter or symbol information) and the information of the next digit is being sent, the charge of C13 is discharged. The input of the one-shot pulse generation circuit 9 switches from H level to L level, and at this time, one pulse is generated and input to the digit shift SH of the multi-digit display device 10, and as described above, it is sent via the terminal DI. The input serial information is internally converted to parallel information, displayed on the LED display, and then shifted to the next digit.
On the other hand, in the printer 11, the same pulse as described above is applied to the input terminal PC at this time, and the input terminal
It prints the numbers (or characters or symbols) that correspond to the data being input via DI, then moves to the next digit and waits for the next information. In this way, the telephone number information is in a minimum pause, that is, the ringing signal is paused2.
They are sent one after another within seconds and are displayed and printed. If no error occurs at this time, no pulse will be generated from the output terminal CO of the input data receiving circuit 5, and therefore the one-shot pulse generating circuit 3 and the charging/discharging circuit 2 will not be reset. Therefore, the data lock circuit 6 locks when the second ringing signal is sounded by a built-in counter circuit and prohibits input to the input terminal IN2, thereby causing unnecessary noise etc. to the multi-digit display device 10 and printer 11. This prevents input from disturbing the display.

However, if an error occurs, the one-shot pulse generation circuit 3 is reset as described above, and at the same time, in order to rapidly discharge the charge in the charging/discharging circuit 2, the next call signal causes one-shot pulse generation circuit 3 to be reset as described above. One pulse is generated from the pulse generating circuit 3, thereby clearing the display on the multi-digit display, causing the printer 11 to start a new line, and moving the head to the top. Then, when the ringing signal stops ringing, the telephone number information sent as described above is displayed and printed. If the called party picks up the handset after seeing this display, the ringing signal will stop ringing. At this point, the output of the calling signal detection circuit 1 is restored to the L level, so the charges in the charging/discharging circuit 2 are discharged after about 3 seconds, and due to this discharge, the data lock circuit 6 is reset.
Automatically restores the state in which you can receive phone number information the next time you receive a call.

Although the above is almost the same in principle as the cited example mentioned at the beginning, next we will describe the effect mainly of the circuit added specifically for the purpose of the present invention. When the owner of this device picks up the TEL handset to make a dial call, the contact point is activated in conjunction with the touch switch.
HS1, HS2, and HS3 are switched to the opposite side with respect to the drawing. First, bridge diode 8 is set by HS1.
connects to the central line. HS2 switches the high-speed information capacitor C13 to the low-speed information capacitor C12, and releases the reset state of the flip-flop IC-84 via OR gates 1 and 3 of the OR gate IC-83. However, the IC-84 has been reset until it is set as described below. Also
2 of the NAND gate IC-82 is switched to H level by HS3, and the bias applied through the resistors R81 and R80 turns on the transistor Q2, which serves as a blocking means for blocking signal input to the calling party telephone number detection means, as described later. This prevents the dial pulse from being input to the input data receiving circuit 5.
Now, when you pick up the handset, you will hear a dial tone in this case. This is line transformer LT
The dial tone detection circuit 7 outputs an H level signal. This results in the above
Since 1 of IC-82 becomes H and its 2 is already H as mentioned above, its output 3 becomes L,
Furthermore, after about 1 second, the set terminal S of the flip-flop IC-84 is set to L via the time constant circuit 12.
Set this flip-flop. So IC
-84's Q becomes H, and NAND gate IC-66's 2 and NAND gate IC-85's 2 are pulled up to H,
Then, set the input terminal ST of the printer 11 to H via OR gate IC-91 2 and 3, start a line feed as described above, move the head to the top, and set the printer 11 in a state where it can print from the top. Clear the multi-digit display device 10. Also IC-
When 84 becomes L, hexadecimal counter IC-88
Cancels the reset. At the same time, set terminal S of IC-93 is set to L via the above-mentioned time constant circuit 12,
This flip-flop is set and its output Q is set to H. As a result, the ribbon shifter terminal RS of the printer 11 is held at H level, a built-in plunger (not shown) is driven, and the ribbon (not shown) is shifted from black to red. After that, when you dial the other party's phone number one after another, a number of dial pulses corresponding to that number are generated, and this dial pulse is a single pulse that occurs during the minimum pause until the next number is dialed. It is displayed by a pulse from circuit 9 and printed by a red ribbon. This is the same as the above-described display and printing of the caller's telephone number information, except that the speed is slower. When dialing is complete and the other party is being called, a ring back tone is heard, but this signal level is much lower than that of dial pulses, so display and printing will not be disturbed. When the conversation with the other party is finished and the caller returns the handset, the contact HS2 linked to the switch returns to the position shown in the figure, and the flip-flop IC-83 is connected via the diode D10 and the OR gate IC-83. Reset 84,
Due to this reset of IC-84, becomes H,
The hexadecimal counter IC-88 is reset and the state is automatically restored to wait for the next operation. On the other hand, I.C.
-93 continues to be in the set state (state where the calling number is printed), but when a call signal from a third party arrives, the Neon NE, CDS,
Since the flip-flop IC-93 is reset via the ringing signal detection circuit 1 and the inverter IC-92, the ribbon of the printer 11 is switched to black as described above, and the mode is set to print the caller's telephone number information in black. .

As described above, in the present invention, when a telephone call is received,
The printer displays the caller's telephone number and, when making a call, the outgoing telephone number on a display means, and identifies with a simple configuration whether the incoming caller's telephone number is the originating telephone number. Since the system is printed and saved, when the administrator checks it later, the difference between the called phone number and the calling phone number can be seen at a glance, but the practical effect is big. Furthermore, when making a call, the dial tone detection means detects a dial tone and then displays the called telephone number on the display means, so telephone numbers that are called before the dial tone is detected and are not transmitted or received are not displayed. By looking at the phone number displayed on the device, you can determine whether the call was made normally or not.

In order to achieve this purpose, the present application detects the state of picking up or not picking up the handset, but this is equivalent to detecting the off-hook and on-hook states, so it does not go against the gist of the present invention. It goes without saying that instead of picking up the handset within the range, equivalent means (including, for example, a one-touch button switch) can be used to do this.

[Brief explanation of the drawing]

The figure is a diagram showing the basic operation of the present invention.

Claims (1)

[Claims] 1. A transformer connected to a telephone line in parallel with the telephone; a calling party telephone number detecting means for detecting calling party telephone number information input from the telephone line via the transformer; dial tone detection means input via the transformer; calling telephone number detection means detecting and outputting a calling telephone number after a detection output is output from the dial tone detecting means; and detecting the calling party telephone number during off-hook. and a display means for displaying and printing a telephone number detected by the calling party telephone number detecting means and the calling telephone number detecting means, and a printer for printing the telephone number detected by the calling party telephone number detecting means and the calling telephone number detecting means, The printer is a phone number display device that identifies and prints the caller's phone number or the calling phone number depending on whether there is an output from the printer. 2. When the printer receives the output from the dial tone detection means, it shifts the printing ribbon to print and display the outgoing telephone number in a color different from that of the incoming caller's telephone number. Display device for listed phone number.