JPS63250958A - Card system public telephone set - Google Patents

Abstract

PURPOSE:To prevent the interruption of a service due to the replacement of a card at the time of a long distance communication, in which the number of times of the service, possible by using the card, decreases quickly by providing a card waiting part, in which plural cards can be inserted. CONSTITUTION:When one card is inserted in a card unit part 2, and the second and following cards are inserted in the card waiting part 7, the remaining number of times of the service of the respective card is read by a call control circuit 4, and total remaining number of time of the service is displayed on a display circuit 5. When it comes into a speaking state, the remaining number of times of the service of the card to be used at first is displayed on the display circuit 5. When the conversation continues exceeding over the remaining number of times of the service of the card used at first, the card used at first is discharged from a card take out opening, and at the same time, the call control circuit 4 reads out the next card with the least remaining number of times of the service from a memory 6, and selects it as the second card from the card unit part 2 and the card waiting part 7, and displays its remaining number of times on the display circuit 5, and makes the call continue.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a card-type public telephone, and more particularly to a card-type public telephone that is capable of making calls by using a plurality of telephone cards in succession. [Technology] Conventionally, this type of card-type public telephone has only one telephone card (hereinafter referred to as a card) inserted therein. Therefore, although the second card can be used as a standby card, it cannot be exchanged until the first card's usage expires, and it is not possible to use multiple cards at once to make continuous calls.

[Problem that the invention seeks to solve]

In the conventional card-type public telephone service mentioned above, only one card can be inserted at a time, so it takes time to insert the card when making a long-distance call, and to use the UI during a call. When making a call using multiple cards, it is necessary to replace the cards one by one, which has the disadvantage that it is very time consuming and time consuming.

[Means for solving problems]

The card-type public telephone of the present invention includes a card unit part into which one telephone card is inserted, a card standby part in which a plurality of telephone cards other than the telephone card stand by, and a card unit part in which a plurality of telephone cards other than the telephone card are inserted, and a card unit part in which a plurality of telephone cards other than the telephone card are inserted, and a a memory section for adding and storing the remaining number of points; a display circuit for displaying the remaining number of points; a call charge processing control section for processing a call interest rate; It is equipped with a call control circuit that selects and uses sequentially and maintains connection with the line.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

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

・In Figure 1, the card-type public telephones (1
0 is the card unit part 2 of the insertion part for one card, the card standby part 7 for multiple cards, and the card with the least remaining power before the call is sequentially jπ and 1 out of all the cards.
A call control circuit 4 that maintains the connection with the telephone line and controls the call using 11 cycles, a memory 6 that adds and stores the counts of all the cards before and after the call, and a memory 6 that stores the remaining counts. It has a display circuit 5 for displaying a display, and a 1'-total charge processing control path 3 for processing call charges by sequentially using the card starting from the card with the least remaining power during a call.

Next, the operation of this embodiment will be explained.

First, when one card is inserted into the card unit section 2 and the second and subsequent cards are inserted into the card standby section 7, the remaining power of each card is read by the call control circuit 4, and the remaining power is read by the call control circuit 4. is stored in the memory 6, and the total remaining frequency is displayed on the display circuit 5.

When the user goes off-hook and performs a predetermined dialing operation (not shown), the card-type public telephone 10 connects the telephone line and the call control circuit 4 and enters the call state, and the display circuit 5 shows the most remaining number in the call control circuit 4. The remaining power of the first card to be used is displayed as a card with a low power.

If the call continues beyond the remaining power of the first card used, the charge processing control circuit 3
As a result of the calculation, the remaining power becomes II OII).The card is taken out from the card ejection port (not shown), and the call control circuit 4 reads out the card with the next lower power from the memory 6, and stores it. A card is selected as a second card from a card unit part 2 and a card standby part 7, and its remaining power is displayed on a display circuit 5 to continue the call.

As a result of the calculation in the charge processing control circuit 3, the remaining power of this second card becomes "0", and if the call continues, the second card is taken out from the slot, and the remaining power is determined in the same manner. The fewest cards are selected and used in order to continue the call.

After the end of the call, the remaining power of the cards still remaining in the multiple card standby section 7 is displayed on the display circuit 5, and then the remaining cards are taken out from the ejection opening and the operation is completed.

〔Effect of the invention〕

As explained above, the present invention has a card standby section into which a plurality of cards can be inserted whether before or during a call, thereby making it easier to make calls by replacing cards during long-distance calls, where the frequency of calls decreases quickly. Interruptions can be prevented, and since cards with a low frequency can be used together without leaving a fraction of the frequency of each card, each card can be used until there is no remaining frequency.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention. 2. Card unit section, 3. Charge processing control circuit, 4. Call control circuit, 5. Display circuit, 6.・・・
, memory, 7... card standby section, 10... card type public telephone.

Claims (1)

[Claims] A card unit part into which one telephone card is inserted, a card standby part in which a plurality of telephone cards other than the above telephone card are waiting, and a memory which adds and stores the remaining power of all the telephone cards before a call. a display circuit for displaying the remaining number of points, a call charge processing control section for processing the call charge, and a telephone card having the least number of remaining points before the call is sequentially selected and used to maintain connection with the line. A card-type public telephone set, comprising a call control circuit.