JPH06233012A - Public telephone set with optical character reading function - Google Patents

Abstract

PURPOSE:To provide a card type public telephone set with which the telephone number of an incoming subscriber is automatically sent to an exchange even though the telephone number is not dialed by a calling subscriber himself. CONSTITUTION:An optical character sensor 27 discriminates the presence or absence of characters for a telephone card 1 where the telephone number of an incoming subscriber is written. Then an optical character reader 28 reads the characters of the card 1, and the read data are analyzed by a CPU 24 and stored in an MM 23. The CPU 24 is connected to an exchange via a speech circuit 25 and then takes out the telephone number of the incoming subscriber that is read by the reader 28 and stored in the MM 23 when the exchange is ready to receive the dial signal. The dial signal is automatically sent to the exchange by a dial 22 through the circuit 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a public telephone, and more particularly to a card type public telephone which reads a telephone number written in a telephone card and automatically dials out.

[0002]

2. Description of the Related Art A conventional card-type public telephone reads data stored in a telephone card and performs dial transmission to the exchange side as a called subscriber telephone number by operating a push button dial or a rotary dial of a caller.

FIG. 2 is a block diagram of a conventional card-type public telephone, which is a magnetic card reader 21 for reading data stored in a telephone card 11, an MM 23 for storing the read data and control means, and a handset off. , A hook switch 20 for identifying on-hook, a call circuit 25 including a handset, a dial 22 for transmitting a dial number operated by a caller, a billing process 26 for billing a call frequency, and the above-mentioned functions. CPU 24 for controlling processing
It is composed of.

[0004]

As described above, in the conventional card-type public telephone, after the telephone card is inserted, it is necessary for the caller to operate the pushbutton or rotary dial operation of the callee telephone number. For that purpose, it is troublesome to do the dial operation while looking at the memo with the telephone number or by my own memory, it takes time, it is easy to make a mistake in the dial operation, and there is a possibility of making a wrong call. There are drawbacks.

The present invention has been made in view of the above-mentioned conventional circumstances. Therefore, the object of the present invention is to use a telephone card which displays a called subscriber's telephone number based on a certain standard, and a caller A new public telephone that can automatically send dials without any dial operation, realizes dial re-operation due to erroneous operation and erroneous connection, and can solve the above-mentioned drawbacks existing in the conventional technology. To provide.

[0006]

In order to achieve the above-mentioned object, a public telephone with an optical character reading function of the present invention has a subscriber telephone number desired by a user based on a certain standard.
In a card-type public telephone that allows you to use a telephone card filled in with your confidence, an optical character sensor that detects the presence or absence of the incoming subscriber telephone number, an optical character reading device that reads characters, and stores the read data It comprises a storage unit, a dial unit having an automatic dial transmission function, and a control processing unit for taking out the data stored in the storage unit and transmitting the data as a called subscriber telephone number.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail with reference to the accompanying drawings with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention.

Referring to FIG. 1, one embodiment of the present invention is
A telephone card 1 in which the called subscriber number is written according to a certain standard, a magnetic card reader 21 for reading the data of the calling card 1, and an optical character sensor 27 for identifying whether or not the called subscriber telephone number is written on the calling card 1. An optical character reader 28 for reading the incoming subscriber telephone number written on the telephone card 1, a read error detection display unit 29 for detecting and displaying a read error, and an MM (main memory) for storing the read data and control means. ) 23
A hook switch 20 for detecting whether the handset is off or on, and a dial 22 for sending a dial signal,
A billing processing unit 26 that processes the call frequency, a call circuit 25 including a handset, and a CPU that controls and processes each of the above functions.
And 24.

Next, an example of the operation of the present invention will be described with reference to the flow charts of FIGS.

When the caller removes the handset, the hook switch 20 goes off-hook, and the call circuit 25 prepares a call off-hook, and the CPU 24 starts the call connection control process.

Next, the telephone card 1 inserted in the card-type public telephone 2 is read by the magnetic card reader 21,
Based on the read data and the control means data stored in the MM 23, the CPU 24 performs a connection process to an exchange (not shown).

On the other hand, in the telephone card 1 in which the telephone number of the called subscriber is described, the presence or absence of characters is identified by the optical character sensor 27. If there is a character, the called telephone number of the called subscriber is read by the optical character reader 28. If there is no character stored in the MM 23 in the read data, that is, if there is no incoming subscriber telephone number, the caller himself dials manually as in the conventional case.

When the exchange side is ready to receive dialed digits, the CPU 24 retrieves the data stored in the MM 23 via the call circuit 25 and automatically sends a dial signal to the exchange through the dial 22 as the incoming subscriber telephone number. To do.

When a reading error occurs in the optical character reader 28, the reading error is detected and the display unit 29 detects and displays the error.

The billing processing unit 26 processes the billing information of the call frequency when the called subscriber answers or during the call.

[0017]

As described above, according to the present invention,
Based on a certain standard, the user can enter the called subscriber's telephone number on the telephone card himself and insert it into the card-type public telephone, and the caller can dial automatically without dialing. The effect that it is possible to prevent erroneous dial operation and wrong call is obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional card-type public telephone.

FIG. 3 is a flowchart of an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Telephone card (according to the present invention described in the telephone number of the called subscriber) 10 ... An example of telephone number of the called subscriber 11 ... Telephone card (conventional type) 12 ... Card type public telephone (conventional type) 2 ... Card type Public telephone 20 ... Hook switch 21 ... Magnetic card reader 22 ... Dial 23 ... MM 24 ... CPU 25 ... Calling circuit 26 ... Billing processor 27 ... Optical character sensor 28 ... Optical character reader 29 ... Read error detection and display

Claims (1)

[Claims] 1. In a public telephone using a telephone card, an optical character sensor for identifying the presence or absence of a character displayed on the telephone card, an optical character reading device for reading the character identified by the optical character sensor, and a reading device for reading the character. A public telephone having an optical character reading function, which is provided with a storage means for storing the stored data, and a function for reading the data stored in the storage means and automatically dialing out to the exchange as a called subscriber telephone number.