JPH01226266A - Public telephone set - Google Patents

Abstract

PURPOSE:To operate a public telephone set so as to talk over the telephone from a distant position by providing a radio terminal which receives the signal transmission of a transmission/reception part connected to a tariff data transmission part, and stores the signal transmission by the dial operation of a radio transmitter, and is connected to a telephone dial storing part. CONSTITUTION:The radio terminal 3 provided with a circuit connecting part 33 to connect both the transmission/reception part 31 connected to the tariff data transmission part 30 and a storing part 32 to store the signal transmission through the dial operation of the radio transmitter 4 on the reception of the signal transmission of said transmission/reception part 31 to the telephone dial storing part is provided, and said circuit connecting part 33 is provided by making it built-in in the number of calls control circuit 21 of a supervisory exchange station 1, and simultaneously, a communication circuit 23 capable of connecting and holding a busy control circuit 40 due to the sending and receiving of speech of the above-mentioned radio transmitter 4 to a telephone set busy control circuit 22 is arranged. Thus, a user need not touch directly the public telephone set, and the telephone set in a cabinet for a telephone or a telephone box within a definite area can be operated so as to talk over the telephone even from the distant position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to public telephones installed in telephone cabinets, telephone booths, other stores, streets, etc.

[Conventional technology]

Generally, public telephones are installed in various places for users to use freely by paying a prescribed fee, but the telephones are connected to the central office's exchange through a public telephone line, and the dial or button on the telephone is connected to the central office's exchange. The user can talk to subscribers by operating the .

[Problem to be solved by the invention]

However, with conventional public telephones, users must always approach the telephone set in a cabinet or box and directly touch the dial to operate it, and they often have to stand while making calls.

Therefore, when handling the phone indoors or outdoors, it is often affected by changes in the weather such as rain, strong winds, scorching sun, or cold weather, which can be uncomfortable and troublesome, as well as for users who are disabled or unable to get close to the phone. If this happens, there are problems such as extremely inconvenient and inconvenient situations.

The present invention precisely eliminates these conventional drawbacks, and provides an easy-to-handle and unpleasant-to-use telephone that allows the telephone to be operated even from a remote location in a telephone cabinet or telephone box within a certain area. The purpose is to provide public telephones that can be used.

[Means to solve the problem]

The present invention provides a public telephone that is connected to a supervisory exchange, includes a call charge collection instruction circuit, has a transmitting/receiving section connected to a charge data transmitting section, and dials a radio transmitter in response to a signal sent from the transmitting/receiving section. A wireless terminal is provided with a line connection unit that connects a storage unit that stores signals sent by operations to a telephone dial storage unit, and the line connection unit is incorporated into a frequency management circuit of the monitoring exchange, and the wireless This public telephone is characterized by being equipped with a communication circuit that can connect and maintain a call control circuit for transmitting and receiving calls from a transmitter to a telephone call control circuit.

[For production]

With the public telephone of the present invention, a user can make a call by dialing a purchased or lent radio transmitter with a dialing function from a certain distance away from a telephone cabinet or telephone box, such as in a car or under the shade of a tree. becomes possible. That is, when the user activates the wireless transmitter, it sends out a desired transmission signal of a predetermined frequency band and causes the receiving section of the public telephone to receive it, and then the charge data sending section sends out a receivable signal to send out a line connection tone. When you confirm the top dial operation on the handset of the radio transmitter, the dial memory signal is sent out and the telephone connects to the telephone exchange by dialing. After that, the radio transmitter's frequency control system, which includes call charge collection instructions, The charge storage control unit issues a call charge collection signal to enable the collection process, allowing the user to make a call after the call is authorized, and during the call, the connection is confirmed and mid-call control is ensured while transmitting and receiving calls until hook-down. It is possible to operate a telephone in a certain area such as a telephone cabinet or a telephone box from a proper position, and to make calls while sitting in a relaxed state. It is easy to handle and convenient to use.

〔Example〕

To explain an embodiment in which the present invention is applied to a public telephone set installed in a telephone box, in a public telephone set 2 connected to a monitoring exchange 1, for example, a telephone office, and including a call charge collection instruction circuit 20, a charge data sending section 30 is used. A line connection unit 3 that connects the connected transmitting/receiving unit 31 and a storage unit 32 that receives the signal sent from the transmitting/receiving unit 31 and stores the signal sent by the dial operation of the wireless transmitter 4 to the telephone dial storage unit.
3, the line connection section 33
is incorporated into the frequency management circuit 2 of the monitoring exchange 1, and a communication circuit 23 capable of connecting and maintaining a call control circuit 40 for sending and receiving calls from the wireless transmitter 4 to a telephone call control circuit 22 is provided. It's a public phone.

In this case, the receiving section 31 is a high, medium, and low frequency amplifier 3.
1. ．． 3] A receiver including □, 313, a frequency converter 314 that converts the frequency by local oscillation, and a detector 315, which is connected to the dial storage section 32 and the charge control section 34 and connected to the main control section 35. Control can be secured between the line on the public telephone 2 side and the circuit on the supervisory exchange 1 side via the line connection section 33 and the opening/closing section 36.
is connected to a main control section 35 which has line connection and cutoff functions using two frequencies: a communication frequency and a control frequency.

Further, the wireless transmitter 4 includes a transmitting section 41 having a transmitting and receiving function.
It has a dial part 42 with a dialing function and a receiver 43 with a sending and receiving function, and has a two-frequency oscillation part in the control part, a balanced modulator 41), a bandpass filter 41□,
Frequency converter 413 and power amplifier 41. It is preferable to use a transmitting section 41 including a dial storage section 44 and a charge storage control section 45, which are connected to each section at an opening/closing section 47 via a control section 46 connected to a dial storage section 44 and a charge storage control section 45. A device equipped with a fee collection section 48 and a fee storage control section 49 that can use a storage medium such as a magnetic card or ROM is used.

In the figure, 5 is a check circuit, 6 is a receivable signal sending unit, and 37
38 is an opening/closing part, 38 is an oscillating part, 39 is a power supply part, 48 is an oscillation part, and 49 is a power supply part.

The wireless terminal 3 is installed in a public telephone 2, and in order to provide the wireless telephone 4 to those who wish to use it, the telephone itself may be sold or rented, depending on the price, and priority is given to a method that does not require call charges or equipment equipment costs. It is preferable to have the user purchase a storage medium such as a magnetic card or FROM, and to adopt a collection system similar to that of a telephone card.

In addition, the reading and decoding of the charge storage section is encrypted twice or more.
The reading device may be installed either on the wireless transmitter 4 side or on the wireless terminal 3 side.

Furthermore, it is advisable to take into account the selection of the frequency used by the radio transmitter, the prevention of noise and crosstalk including the prevention of eavesdropping, the terminal signal waiting situation, and the selection of control during a call with one of the public telephones within a certain area. .

〔Effect of the invention〕

The present invention provides, in a public telephone, a transmitting/receiving section connected to a charge data transmitting section, and a storage section that receives a signal sent from the transmitting/receiving section and stores a signal sent by a dial operation of a wireless transmitter to a telephone dial storage section. A wireless terminal is provided with a line connection part to be connected, the line connection part is incorporated into a frequency management circuit of the monitoring exchange, and a call control circuit for transmitting and receiving calls of the wireless transmitter is provided as a telephone call control circuit. By installing a communication circuit that can maintain a connection to a public telephone, users no longer need to touch the public telephone directly.It is possible to operate the telephone from a distance in a telephone cabinet or a telephone box located within a certain area. It is also possible to make calls and can be used in a relaxed state while sitting on a bench or in a car seat, and its use does not cause discomfort or inconvenience due to weather changes, making it effective for people with disabilities and other conditions. This makes it extremely easy to handle, greatly increases the degree of use, and also makes it useful for promoting telephones and expanding the scope of use of telephones.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, FIG. 1 is a flow chart of control signals, FIG. 2 is a block diagram of a wireless terminal,
FIG. 3 is a block diagram of the radio transmitter, FIG. 4 is a block diagram of the receiving section, and FIG. 5 is a block diagram of the transmitting section. 1... Supervisory exchange °, 2... Public telephone, 3...
Wireless terminal, 4... Radio transmitter, 20... Call charge collection instruction circuit, 21... Frequency management, 22... Calling control circuit, 31... Transmission/reception unit, 30... Charge data Sending section, 32... Dial storage section, 33... Line connection section, 40... Calling control circuit, 41... Transmission/reception section, 42... Dial section, 44... Dial storage section, 45... Charge storage control unit, 48... Call charge collection unit. Patent applicant Tokyo Tsushin Kozai Co., Ltd. Agent Patent attorney Yakushi Minoru Agent Patent attorney Yori 1) Kojibe

Claims (5)

[Claims] (1) In a public telephone connected to a supervisory switching center and including a call charge collection instruction circuit, a transmitting/receiving section connected to a charge data transmitting section and a signal generated by dialing a radio transmitter in response to a signal sent by the transmitting/receiving section. A wireless terminal is provided with a line connection unit that connects a storage unit for storing transmission information to a telephone dial storage unit, the line connection unit is incorporated in a frequency management circuit of the monitoring exchange, and the wireless transmitter A public telephone set equipped with a communication circuit capable of connecting and maintaining a call control circuit for transmitting and receiving calls to a telephone call control circuit. (2) The receiving unit is a receiver including high, medium, and low frequency amplifiers and a frequency converter that converts frequencies by local oscillation, and is connected to a dial storage unit and a charge control unit and is controlled by a main control unit. 2. A public telephone set according to claim 1, wherein the opening/closing section can control the public telephone side line and the monitoring exchange side circuit through the line control section and the switching section. (3) The transmitting/receiving section uses two frequencies, a calling frequency and a control frequency, and is connected to a main control section having line connection and disconnection functions. public telephone. (4) The wireless transmitter has a transmitting/receiving function, a dialing function, and a transmitting/receiving function, includes a two-frequency oscillation section in the control section, and includes a balanced modulator, a bandpass filter frequency converter, and a power amplifier. 4. A simple radio telephone that can be used as a public telephone according to claim 1, 2 or 3. (5) The simple radio telephone set according to claim 4, wherein the radio transmitter is equipped with a charge storage control section which includes a call charge collection section and can use a storage medium such as a magnetic card or ROM.