JPH0454755A - Public telephone set - Google Patents

Abstract

PURPOSE:To allow the talking without caring about dirt of a handset even in a public telephone set by providing the handset to the public telephone set separately from a telephone set main body and offering free electric connection for talking to an optional telephone set main body. CONSTITUTION:The user deposits a coin to a charge deposit port 2 of a telephone set main body A. A transmission reception selection SW4 of the telephone set main body A selects the use of a cordless transmitter-receiver 10. The telephone set main body A makes carrier sense to select an idle channel. When a hook SW 11 of the transmitter-receiver 10 is hooked off, a loop is formed between the main body A and an exchange. Moreover, the telephone set main body A designates a channel (SP5) as a result of the SP3 to decide an operating channel with the cordless transmitter-receiver 10. When a dial 12 is operated, the telephone set reaches a state able to talk with a destination.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to public telephones installed on streets.

[Prior Art] A public telephone set is selected by an operator on the street and can be used to talk to a specific party.

Normally, this call is made using a handset provided in each telephone body.

[Problem to be solved by the invention] However, since the handset of this public telephone is used by an unspecified number of people, it easily gets dirty (unsanitary), making it difficult for the operator who wants to use it to perform this operation. With,
There were problems in that it was easily damaged and required maintenance.

On the other hand, with current public telephones, the user must always hold the handset with one hand during a single call, which is cumbersome.

The present invention has been made in view of the above-mentioned problems, and allows an operator to make a call without worrying about getting the handset dirty when using any public telephone set installed on the street, and also allows for easy maintenance. It is an object of the present invention to provide a public telephone that can be easily used and also allows both hands to be free even during a call.

[Means for Solving the Problems] In order to achieve the above object, the public telephone of the present invention has a telephone main body A provided with a charge slot 2 for charging a call fee, and a telephone main body A provided with a charge slot 2 for charging a call fee. Transmitting/receiving means B, which is configured separately from the main body of the telephone and can be electrically connected to any selected telephone body for communication.
It is characterized by having the following.

Further, in claim 2, a telephone main body A is provided with a charge slot 2 for charging a telephone call fee, and a transmitting/receiving means B for making a telephone call is constituted by a microphone 20a and a speaker 20b fixed to the telephone main body, It is characterized by having the following.

[Function] According to claim 1, the operator only carries the transmitting/receiving means B, selects and operates a desired one of the plurality of telephone main bodies A installed on the street, and transmits the telephone main body A using his own transmitting/receiving means B. Make a call via.

In claim 2, the transmitting/receiving means B comprises a microphone 20a and a speaker 20b fixed to the telephone body A,
The operator can have both hands free during a call.

[First Embodiment] FIG. 1 is a schematic diagram showing an embodiment of a public telephone according to the present invention.

The public telephone 1 shown in this ward has a telephone main body A and a transmitting/receiving means B having a transmitting/receiving function.

The outer surface of the telephone main body A is provided with a charge slot 2, a charge return slot 3, a transmitting/receiving means selection SW 4, an antenna 5, etc., and the inside is equipped with electrical circuits related to calls such as a radio circuit, a transmitting/receiving circuit, a billing circuit, etc. Control means are provided.

On the other hand, the transmitting/receiving means B is constituted by a cordless transmitting/receiving device 10 provided separately from the main body A of the telephone. This cordless handset 10 has a hook of 5WII and a dial of 12.
, a microphone 13a, and a speaker 13b are provided, and transmission and reception to and from the telephone main body A can be performed via an internal wireless circuit and an antenna 14.

The cordless handset 10 has a hinge 15 in the center so that it can be folded and conveniently carried.

Next, the operation of the above-mentioned public telephone will be explained.

Normally, a large number of cordless handsets 10 are prepared separately from the public telephone main body A, and are used exclusively by individuals.

When using any telephone main body A installed in large numbers on the street, the cordless handset 10 is used to make a call.

The operations from connection to disconnection between the cordless handset IO and the telephone main body A will be described below using the flowchart shown in FIG. 2.

First, the user inserts the charge for the call into the charge slot 2 of the telephone body A (SPI).

Next, the operator selects to use the cordless handset 10 using the transmitter/receiver selection switch SW4 of the telephone body A (SF3).

As a result, the telephone main body A performs carrier sense and selects an empty channel from among the plurality of channels (SF3). Multiple settings must be made for each phone A in advance.

Next, the operator connects the hook 5WII of the cordless handset 10.
off-hook (SF4). This allows the phone body A
A connection request is made to the telephone exchanger, and the telephone main unit A closes a loop with the exchange.

Furthermore, as a result of SF3, the telephone main body A specifies a channel (5P5), and the channel to be used is determined with the cordless handset 10.

Then, the operator dials 12 of the cordless handset 10.
When dialing (SF3), cordless handset 1
0 sends a dial signal to the telephone main body A, and the telephone main body A transmits a dial selection signal to the exchange. As a result, the exchange returns a response (5P7), the telephone body A
transmits an audio circuit ON signal to the cordless handset 10.

With the above operations, you will be able to talk to the other party (SP8)
.

After the call ends, hook 5WII of the cordless handset 10.
By going on-hook (SP9), an on-hook signal and then a call termination signal (SPlo) are transmitted, and the telephone main unit A releases the loop with the exchange.

The above operation has been explained for the case where the telephone main body A is an analog type, but even if it is a digital type, a call can be made using the rgJ-like procedure.

In this way, by carrying the cordless transmitter/receiver 10 as the transmitter/receiver means B for each user, the conventional problems can be solved.

In addition to the cordless transmitter/receiver 10, the telephone main body A is provided with a microphone 20a and a speaker 20b as a transmitter/receiver means B, and a dial 2. It is necessary to provide the cordless handset 10 so that a user who does not carry the cordless handset 10 can use it. As in this case, a microphone 20a and a speaker 2 are provided on the telephone main body A as a transmitting/receiving means B.
The selection to use 0b and the hook operation are performed by the transmitting/receiving means selection SW4.

F Second Embodiment] FIG. 3 is a schematic diagram showing a second embodiment of the present invention, and the same constituent parts as in the above embodiment are given the same reference numbers and their explanations are omitted.

In this embodiment, a corded handset 30 is used as the transmitting/receiving means B instead of the cordless handset 10.

Therefore, this corded handset 30 and the telephone main body A
A connection cord 31 and a connection connector 32 are provided between them. Thereby, the corded handset 30 and the telephone main body A are connected via the connection cord 31. In this case, the configuration and connection procedure related to the wireless communication can be omitted.

Incidentally, the corded handset 30 may be applied to a public telephone having a handset 40 which is previously connected to the telephone main body A by a cord as a transmitting/receiving means B as shown in the figure.

The selection of whether to use the corded handset 30 or the handset 40 as the transmitting/receiving means B is made by means of the transmitting/receiving means selection SW4.

Further, the present invention can obtain similar effects even when applied to pink telephones other than the public telephones explained in the above embodiments.

[Effects of the Invention] According to the present invention, when an operator uses any public telephone installed on the street, he or she can make a call without worrying about getting the handset dirty.

In claim 1, by personally owning the transmitting/receiving means, it is possible to talk without worrying about this dirt.In claim 2, it is possible to talk without worrying about this dirt by being able to talk without directly touching the transmitting/receiving means. It is.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a first embodiment of the public telephone of the present invention, FIG. 2 is a flowchart for explaining the operation of the public telephone, and FIG. 3 is a second embodiment of the public telephone. FIG. 2... Toll slot, 3... Return slot, 4... Transmission/reception means selection SW, 5.14... Antenna, 10... Cordless transmitter/receiver, 11... Hook SW, 12, 20C・
... Dial, 13a, 20a - Microphone, 13b. 20b...Speaker, 15...Hinge, 31...
Connection cord, 32...Connector, A--Telephone body, B...Transmitting/receiving means. Patent applicant Norihiro Nishimura, agent/patent attorney for Anritsu Corporation

Claims (2)

[Claims] (1) Between the telephone main body (A) equipped with a charge slot (2) for charging call charges and any selected telephone main body that is separated from the telephone main body. A public telephone set comprising: a transmitting/receiving means (B) in which an electrical connection for making a telephone call is freely configured; (2) Consists of a telephone main body (A) equipped with a charge slot (2) for charging call charges, and a microphone (20a) and speaker (20b) fixed to the telephone main body for making calls. Transmission/reception means (B
), and a public telephone set.