JPH0292064A - Public telephone set - Google Patents

Abstract

PURPOSE:To attain storage and reproduction of speech information optionally as required without direct effect on the processing of a charging signal with simple structure without destructing an internal device by using a card shaped storage means for the speech information. CONSTITUTION:When an IC card is inserted to a card insertion port 19 and a setting switch 21 by a storage mode setting means is turned on during talking, the speech information is stored in the storage mode of the designated system. In the case of reproducing the speech information stored in the storage means, the IC card is inserted to turn on setting switches 23, 24 by the automatic reproducing mode. Thus, the speech line is connected automatically one after another to the set speech destination and the speech information is reproduced while the collected charge is being reduced.

Description

[Detailed Description of the Invention] [11. Field of Application of Business] The present invention relates to public telephones that exchange call information with each other through telephone lines. It is related to.

[Conventional Technique II#] For example, public telephones are often used as an easy means of communicating one's business to a predetermined party from outside the home.

By the way, when you are talking to the other party using this public phone, the other party only listens to the message and there is nothing visually appealing to them, so if important information that must not be forgotten is exchanged during the call, , usually while opening the message, write it down on memo paper or the like.

However, if such a method is used to write down all important matters, there is a problem that the task is not only troublesome, but also that the call time increases accordingly and the call charges increase. In addition, since the contents of the business are written down at intervals, mistakes are likely to occur, and the contents must be checked each time, which is inconvenient. In addition, when the person using the public phone wants to inquire about the other person's business, the problem becomes even more complicated because the person using the public phone must always carry a notepad, etc. .

Therefore, it is conceivable that public telephones be equipped with tape recorders that can record call information, similar to the answering machines that are now common in households.

[Problem to be solved by the invention] However, when a tape recorder is built into a public telephone, the recording format means that your own voice is recorded louder than the other party's voice, so the other party's voice cannot be heard during playback. It is not suitable as a means of recording the other party's business. Furthermore, with a built-in tape recorder, there are problems in that it is not only inconvenient to carry the cassette tape for recording business matters, but also that a large space is required to install the tape recorder. Furthermore, since the cassette tape ejection port is larger than the money slot or return port, there is a risk that internal mechanisms such as the recording head may be damaged through the ejection port, making it impractical.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems.The purpose of the present invention is to store call information without destroying the internal mechanism, to have a simple structure, and to have no direct effect on billing signal processing. To provide a public telephone set with excellent operability which allows playback to be performed arbitrarily as needed.

[Means for Solving the Problems] In order to achieve the above object, the public telephone set according to the present invention has a communication system with an in-office device so that call information can be mutually exchanged with other stations via a telephone line. a call control circuit that forms a loop circuit; a conversion unit that samples the call information at a predetermined period; and a conversion unit that samples the call information at a predetermined cycle; It is characterized by comprising a card-shaped storage means for storing data based on call information, and a setting means for setting timings for writing and reading data stored in the storage means.

Furthermore, a configuration may be adopted in which a fee is collected when reproducing the stored content in the storage means.

Furthermore, a configuration may be adopted in which the contents stored in the storage means are transmitted to a plurality of preset call destinations by sequentially connecting call lines while reducing charges.

[Function] The call control circuit forms a loop circuit with the in-office equipment,
To enable mutual exchange of call information with other stations via a call line. In this state, when the card-shaped storage means is inserted into the insertion slot of the telephone main body and the settings are made by the setting means, the call information is sampled at a desired period in the converter based on this timing and stored in the card-shaped storage means. written and stored. Further, when reading out the stored contents of the storage means, it is carried out based on the timing of setting by the setting means.

[Embodiment] FIG. 1 is a block diagram showing an embodiment of a public telephone set according to the invention.

The public telephone according to this embodiment stores and reproduces call information exchanged through a call line, and includes hook detection means 1. U total collection means 2, sorting means 3, storage and return means 4, call control circuit 5, A/D conversion section 6. storage means 7;
Storage mode setting means 8, playback setting means 9, automatic playback setting means 1O1D/A conversion section 11, playback circuit 12, control section 1
It is roughly configured with 3.

The hook detection means 1 detects whether or not the user has lifted the hook, that is, the handset 15, from the telephone main body 14 when making a call, and a detection signal at this time is output to the control section 13. ing.

The fee collection means 2 is a telephone call or a storage means 7 which will be explained in detail later.
This system collects the coins inserted by the user when reproducing the call information stored in the IC card.When the user inserts the coins, the system controls the toll collection signal indicating that the coins have been inserted. It is output to section 13.

The sorting means 3 sorts the coins collected by the toll collection means 2 based on thickness, diameter, weight, magnetism, etc., and determines whether or not genuine coins have been collected. It is designed to be stored at a predetermined location (storage track) inside.

The storing and returning means 4 reduces the amount of accumulated currency according to the usage time and usage distance by reproducing the IC card as a communication or storage means, and this operation is performed by the in-office device 16.
This is done based on the billing signal sent from the side.

The call control circuit 5 sends a signal to the control unit 1 indicating that money has been accumulated.
3, a loop circuit is formed with the in-office device 16 to maintain a state in which a call can be made, and when the called party answers after the user operates the dial 17 in this state, It is now possible to exchange calls with this called party.

The A/D converter 6 compresses the band of call information exchanged through the line, samples it at regular intervals, and converts it into a digital signal.The call information sampled at this time includes the call control circuit 5 and the in-office device 16. L between
A signal (voltage signal) between the l and L2 terminals is used. In this case, since the voltage level between the LL2 terminals is high, it is desirable to lower the level by mixing.

Note that it is also possible to sample the voltage signal between the receiver 15 and the transmitter 18 as call information.

The storage means 7 is composed of, for example, an IC card, and as shown in FIG.
(not shown) is inserted into the card insertion slot 19 of the
The signal sampled by the /D converter 6 is stored for a predetermined period of time.

Here, the card insertion slot 19, like the money slot 25, is made of a sturdy fire-resistant material to prevent the internal mechanism from being destroyed through the card insertion slot 19.

The storage mode setting means 8 sets the timing of reading and writing when the sampling data output from the A/D converter 6 is stored in the storage means 7. This operation is performed by pressing the numeric keypad 20 on the front of the telephone main body 14. Memory settings can be made in three ways by operating the key 21 provided on the h side. To be more detailed, the third
As shown in Figure (a), the method stores information for the time t until the key 21a is pressed, and as shown in Figure (b), the key 21a
As shown in FIG.
These settings can be selected and made arbitrarily by the user.

Here, the one shown in Fig. 3(b) is a normal storage method, and if the storage method shown in Fig. 3(a) is adopted, when the money stored in the memory runs out and the call stops, However, the call information up to that point will be remembered. Furthermore, if the storage method shown in FIG. 3(C) is adopted, it is possible to store the immediately preceding call information, which tends to be overheard.

Note that the storage time t is set to a predetermined time, for example, 30 seconds or more depending on the capacity of the memory, but a switch (not shown) for setting the storage time is provided in addition to the setting switch 21 (key switch) described above. By providing this, it is also possible to arbitrarily set the storage time and storage timing in combination with the setting switch 21.

The playback setting means 9 is used in the normal playback mode, that is, when playing back the call information stored in the storage means 7 for the user himself or one call party, and the settings in the storage mode setting means 8 Like the switch 21, it is composed of a key switch 22, and is provided in parallel with the setting switch 21.

The automatic reproduction setting means 10 is used when reproducing the call information stored in the storage means 7 to a plurality of call parties, and includes two key switches 23. 24, one key switch 2
3 and the numeric keypad 20 used for dialing to set the called party to be played, and by pressing the other key switch 24, the call information in the storage means is stored for the set called party. Playback is performed in an automatic playback mode in which the files are automatically played one after another.

When reproducing the call information stored in the storage means 7, the D/A conversion section 11 operates the reproduction setting means 9 or the automatic reproduction setting means 10 with the IC card serving as the storage means 7 inserted into the card insertion slot 19. When the setting switches 22 and 23, 24 are operated, the call information in the storage means 7 is converted into an analog signal and output to the reproduction circuit 12 based on a command from the control section 13.

The reproduction circuit 12 converts the signal from the D/A converter 11 into a reproduction signal, that is, an audio signal corresponding to call information, and outputs the signal to the call control circuit 5.

The control section 13 outputs a command signal for performing the next operation to each circuit 1-12 in response to a signal input from each circuit 1-12 while maintaining timing between each circuit 1-12.

Next, the operation of the public telephone configured as described above will be explained.

First, the operation of storing call information in the storage means will be explained based on the flowchart of FIG.

Note that a public telephone that uses coins will be explained here as an example.

When a user (caller) uses a telephone, it is first detected whether the hook (handset 15) is up or not (STI).

If the hook is not raised, return to STI operation.

If the hook is up, it is detected whether or not a fee is being collected (Sr2).

When the fee is collected, a loop circuit is formed with the in-office device 16. In this state, when the dial is turned and the called party answers (Sr1), desired call information can be exchanged between them. If the called party does not respond and the hook is not dropped (Sr4), the calling state continues. Furthermore, when the hook is lowered at this time (Sr4), the loop circuit is disconnected and returns to the initial state, and the coins collected at that time are returned (Sr1).

Next, the IC card as the storage means 7 is inserted into the card insertion slot 1.
9 (Sr1), and when the setting switch 21 in the memory mode setting means 8 is operated and turned on during a call (
Sr7), the call information at that time is stored in the IC card serving as the storage means 7 in a specified storage mode (Sr1). Then, when the call ends (Sr1) and the hook is dropped, the change is returned. If a call is in progress, the process returns to step (Sr7).

Next, the operation of reproducing the call information stored in the storage means by the above-described operation will be explained based on the flowchart of FIG.

First, it is detected whether the hook is up (STIO
), if the hook is up, it is detected whether or not a fee is being collected (STII).

If the hook is not up, it is detected whether or not the automatic reproduction mode is set (ST12), and if it is set, it is detected whether or not a fee is being collected (STII). After the fee is collected and the dial is turned, when the called party answers (ST13), desired call information can be exchanged between the parties. At this time, if the called party does not answer and the hook is not dropped (ST14
), if the calling state continues and the hook is dropped (ST14
) The loop circuit is disconnected and returns to the initial state, and the coins collected at that time are returned (ST15). Next, when reproducing the call information in the storage means during a call (ST1
6) It is detected whether or not an IC card as the storage means 7 is inserted (ST17).

If the call information is not to be reproduced, the call information is exchanged between the parties until the call with the called party ends (ST18).

Next, it is detected that an IC card as the storage means 7 is inserted (ST17), and when the automatic playback mode setting switches 23 and 24 are operated and turned on (ST1
9) The call information in the storage means 7 is reproduced while automatically connecting call lines to the set call destinations one after another and reducing the collected charges (ST20). Further, if the setting switch 22 for the normal playback mode is operated and turned on without operating the setting switches 23 and 24 for the automatic playback mode (ST21), the call information is played back to the called party dialed at that time (ST20). .

If the played content is not transmitted to the other party (ST
22) Repeat the playback operation in ST20.

As explained above, in this embodiment, especially when a call is made between two parties, the call information stored in the storage means 7 remains as evidence. can be easily played.

In addition, according to this embodiment, multiple calls can be made, and the call information in the storage means 7 can be transmitted to multiple call parties, for example, important communication information can be sent to multiple people from outside the home. It is effective when conveying things such as

Furthermore, since this embodiment uses a card-shaped storage medium (such as an IC card) as a storage means for recording call information, it is convenient to carry and can last for a certain amount of time depending on the storage capacity of the memory. Call information can be stored.

Although an IC card has been described as an example of the storage means 7 here, the storage means 7 is not limited to this, and may be any other card-shaped storage medium such as a laser card or the like.

By the way, in the embodiment described above, setting switches 21, 22, 23, and 24 are provided separately from the numeric keypad 20 for dialing in order to make settings for storing and reproducing call information. .24 and the numeric keypad 2o are configured to perform settings, but by combining each key of the numeric keypad 2o (for example, combining the circle key and the numeric key), the setting switch 21 described above can be set.
．． 22, 23, and 24 may be configured to have the same functions. In this case, setting switch 21.22.23
．． 24 can be reduced to simplify the structure.

In addition, in the above-mentioned embodiment, the operation was explained using a public telephone that uses only money as an example, but it is also applicable to a public telephone that uses both money and a card containing monetary information or a public telephone that only uses cards. be able to.

[Effects of the Invention] As explained above, according to the public telephone of the present invention, a card-shaped device (for example, an IC card) is used as a storage device for call information, and this card-shaped storage device is inserted. The insertion slot has a narrow diameter just like the coin slot, so
There is less risk of damaging the internal mechanism, and the structure is simpler than that of a recorder such as an answering machine.

In addition, the storage and playback of call information can be performed as needed based on the timing of the settings in the setting means, without being directly affected by the processing of billing signals. It is extremely easy to operate as it is as simple as inserting it into the insertion slot and setting it on the setting means.

[Brief Description of the Drawings] Fig. 1 is a block diagram showing an embodiment of a public telephone according to the present invention, Fig. 2 is a perspective view showing an example of the appearance of the public telephone, Fig. 3 (a), (b) and (C) are diagrams showing the timing of setting by the setting means when storing call information in the storage means, and FIG. 4 is a flow chart diagram showing the operation when storing call information in the storage means in the same public telephone. ,
FIG. 5 is a flowchart showing the operation of the public telephone when reproducing call information stored in the storage means. 2... Fee collection means, 5... Call control circuit, 6...
- A/D conversion section (conversion section), 7... Card-shaped storage means, 8... Storage mode setting means (setting means), 9...
- Reproduction stage 7 means (setter f), 10... automatic reproduction setting means (setting means), 11... D/A conversion section (conversion section,
DESCRIPTION OF SYMBOLS 12... Regeneration circuit, 13... Control part, 14... Telephone main body, 16... In-office device, 19... Insertion slot, 2
1... Setting switch.

Claims (1)

[Claims] 1) A call control circuit that forms a loop circuit with an in-office device so that call information can be mutually exchanged with other stations via a call line; a conversion unit that samples at a predetermined period; and a card-shaped storage unit that is removably inserted into an insertion slot formed in a telephone main body and that stores data based on the call information converted by the conversion unit. , and setting means for setting the timing of writing and reading data stored in the storage means. 2) A public telephone set according to claim 1, characterized in that the telephone set is configured to collect a fee when reproducing the contents stored in the storage means. 3) The public telephone set according to claim 1, wherein the telephone line is sequentially connected to a plurality of preset call destinations while reducing charges, and the contents stored in the storage means are transmitted. A public telephone set that is characterized by: