JPH01103351A - Analog data communication system for magnetic card reader for analog telephone set connected to telephone circuit of private branch exchange - Google Patents

Abstract

PURPOSE:To transmit/receive many kinds of data by sending the contents of data of a magnetic card read by a card reader to a telephone circuit via a MODEM and receiving the external data of CPU via the MODEM. CONSTITUTION:A switch 2 is operated and a preset selection signal is sent to a private branch exchange 12 from a selection signal transmitter 1 to connect a telephone circuit and a MODEM 3. Then a carrier is sent from the MODEM 3 to switch a circuit selector 5 to connect the MODEMs 3, 8. In receiving the carrier, the MODEM 8 lights a carrier reception display lamp. Then the content of the magnetic card read by the card reader 6 is sent to a CPU 7 via the MODEM 8 and the CPU 7 sends the reception confirming data via the MODEM 3 to light the reception confirming lamp. Simultaneously, the connection destination of the telephone circuit is switched to the external telephone circuit. Thus, many kinds of data can be transmitted/received.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ablog data communication system for a magnetic card reader for an analog telephone connected to a telephone line of a private branch exchange.

[Prior Art] Conventionally, for analog data communication of a magnetic card reader for an analog telephone connected to the telephone line of this type of private branch exchange, a pushbutton (hereinafter referred to as PB) signal was used. Additionally, an ASI log audio band signal of a specific frequency was used to confirm whether the electronic receiver connected to the opposite end of the telephone line had received the contents of the magnetic card.

[Problems to be Solved by the Invention] Since the analog data communication method of the magnetic card reader for analog telephones connected to the telephone line of the conventional private branch exchange described above uses 12 types of signals called PB low signals, The content of data sent to the telephone line is restricted.

Another drawback is that if noise is generated on the telephone line for some reason while the PB signal is being sent, and the contents of the data cannot be accurately transmitted to the other party, the data must be resent again by human operation.

An object of the present invention is to provide an analog data communication system that eliminates the above-mentioned problems.

[Means for Solving the Problems] The present invention provides a magnetic card reader for an analog telephone connected to a telephone line of a private branch exchange, and a means for transmitting a preset selection signal to the telephone line by operating a switch. , a modem S connected to the opposite side of the telephone line
means for detecting a carrier wave from the A-neck; means for displaying an indication when the carrier wave is received; means for modulating the contents of the magnetic card into an analog data signal and transmitting it to a telephone line; means for receiving and demodulating an analog data signal sent from an electronic computer connected oppositely thereto; means for displaying that the electronic if 0 machine has indeed received the contents of the magnetic card; A means for switching the telephone line to an external telephone connection line after displaying the fJ
This is an analog data communication system for a magnetic card reader for an analog telephone connected to a telephone line of a private branch exchange.

[Example] Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. In FIG. 1, the magnetic card league for analog telephones includes a selection signal transmitter (hereinafter referred to as O8C) 1 for sending out a preset selection signal, and a switch (hereinafter referred to as SW) 2 for activating 03CI. , a carrier wave (hereinafter referred to as carrier) sent from a modem (hereinafter referred to as M/D) 3 connected to the opposite side of the telephone line.
a carrier receiving device (hereinafter referred to as CRV) 4 that detects the
(hereinafter referred to as SEL) 5, a card reader (hereinafter referred to as CRD) 6 for reading the contents of a magnetic card, and a CRD.
6, modulates the digital data sent from 6 into an analog signal, or connects it via a telephone line
A modem (M/D) 8 that digitally demodulates the analog data signal sent from the CPU (hereinafter referred to as CPU) 7,
・A lamp that indicates that a rear message has been received (hereinafter referred to as CDLP)
) 9 and a lamp (hereinafter referred to as 0KLP) 1 to indicate that the CPU 7 has indeed received the contents of the card.
0 and the CD based on the data received via M/DB.
It includes a control device (hereinafter referred to as CNT) 11 that controls LP9°CKLPIO and 5EL5.

Next, the operation of this embodiment will be explained.

By operating SW2, a preset selection signal is sent from 03C1 to 5EL5II to perform in-groove exchange la(
(hereinafter referred to as PBX) 12.

By setting the selection signal in advance to the extension number to which the M/D 3 is connected, the telephone line and the M/D 3 are connected. After that, Kirelia is automatically sent out from M/D3. The Kyrelia is received by CRV4. CR
When V4 receives the carrier, it operates 5EL5 and switches the connection with the telephone line to M/DB. Now M/D
3 and M/DB are connected, and M/DB receives the signal from M/D3. The received Kyrelia is converted into a signal by the M/D 8 and communicated to the CN T 11. C
NTII receives the signal and turns on CDLP9.

Next, the CRD 6 reads the contents of the magnetic card. The read contents are sent to the M/DB via CNTII, and finally sent to the CPU 7. When the CPU 7 confirms that the contents of the magnetic card have been accurately received, it sends data to that effect to the CNT II via the M/D 3. C
When the NTII receives the data, it lights up 0KLP10.

At the same time as this, CNTII controls 5EL5 and switches the connection destination of the telephone line to an external telephone connection line.

[Effects of the Invention] As explained above, the present invention transmits the digital data contents of the magnetic card read by the card league to the telephone line via the dem, or transmits the data sent from the external CPU to the modem. By receiving data via the , it is possible to send and receive many types of data. In addition, it has the advantage of being able to realize error-free data communication because it uses a modem to perform 1-bit data communication.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. 1... Selection signal transmitter (O20) 2... Switch (SW) 3... Modem (M/D
) 4...Kirelia receiver (CRV) 5...Circuit selection device (SEL) 6...Card reader (CRD) 7...Electronic calculator (CPLJ) 8...Modem (M/D> 9...Carrier reception indicator lamp (CDLP) 10...
・Reception confirmation lamp (CKLP) 11...control device (C
NT)

Claims (1)

[Claims] (1) In a magnetic card reader for an analog telephone connected to the telephone line of a private branch exchange, means for sending a preset selection signal to the telephone line by operating a switch, and a modem/demodulator connected to the opposite side of the telephone line. means for detecting a carrier wave from the device; means for displaying an indication when the carrier wave is received; means for modulating the contents of the magnetic card into an analog data signal and transmitting it to a telephone line; and an opposite side of the telephone line. means for receiving and demodulating analog data signals sent from a computer connected to the computer; means for displaying that the computer has indeed received the contents of the magnetic card; 1. An analog data communication system for a magnetic card reader for an analog telephone connected to a telephone line of a private branch exchange, characterized in that the analog data communication system has a means for switching the line to a line for connecting an external telephone.