DE2018572C3 - Payment method and circuit arrangement for coin operated telephones - Google Patents

Description

This method has the disadvantage. that when making a long distance call over a long distance and with a higher fee unit, the counting pulses must be done very quickly one after the other. This can lead to the fact that the counting pulses no longer can be properly generated or transmitted.

In addition, it is already known the normal, slower subscriber cycle to control the checkout process To be used with coin operated telephones (DT PS 1197 937). To do this, it must be replaced by a special device convert the participant cycle into the counting cycle necessary for the coin meter. This can for example done by the fact that from each distance the subscriber counting pulses in a cyclical sequence

ι. "x ^ öRb ^ rirliÄncatnrpntlnHpQtrpL ·.

to the smallest coin / value and to a second counter

(Z3) can be created directly, and that depends on

the position of an evaluation level (Zl). that says.

whether the first or one of the following counting pulses

is applied, in the first position / 7-1 pulses of the

Transfer the pulse generator (2) to the cash register

and in the second position, when the next counting pulse arrives, the position of the first

Counter (Z 2) is transferred to a memory (7)

and the first and second counters again

be reset that when reaching the

same position of the second counter (Z3) with the

Status of the memory (7) an impulse for payment

is sent out and the second counter (Z3) again

is set to zero. Distance of the ι enneninciiuiumipuioV ... *. ,,. ". ₆ "

6. Circuit arrangement according to claim 5, characterized in that a potential difference is derived after n- \ emitted pulses, and a counter (74) blocks the memory output compared with a further potential difference and the external and the counting pulses are generated when the counting pulse reaches the debiting device. Difference between the potential differences to zero

7. Circuit arrangement according to claim 5, characterized in that 55 is.

characterized that the reset pulses for the With this method turns out to be a disadvantage,

first and second counter from the outside that the tolerances of the capacitors in the incoming counting pulses are received via a delay conversion of the clocks. In addition, must be facility to be derived. Change in fees by a penny in

8. Circuit arrangement according to claim 5, characterized in that the conversion device is changed 60 for each coin mechanism, characterized in that the during the first position The invention is based on the object a the evaluation level (Zl) for the checkout to indicate the checkout procedure, which is not a faster one NEN pulses via a delay element (10) and a clock as the subscriber clock and does not AND gate (11) from the pulse generator (2) takes an adjustment on the Münzfernmen every time the tariff is changed and on the line of the memory output 65 speech set must take place.

are given and the counter (Z4) after n- \ According to the invention, this is achieved in that the

Impulses to block. Exchange issues a coin clock that a

9. Circuit arrangement according to claim 5, characterized in that the value rounded up to the smallest coin value

. This corresponds to the fact that the coin meter collects the minimum fee with the first dialing pulse, that the time until the next counting pulse arrives is measured and that an internal clock is formed from this, the sequence of which corresponds to the ratio (s) of the minimum fee to the smallest coin value and that after the internal clock is collected. It is advisable that the internal cashier pulse that coincides with the counting pulse from the exchange is suppressed and the external counting pulse is used to trigger the cashier, and the time measurement is repeated between all of the counting pulses coming from the exchange. The time measurement is advantageously carried out digitally., ...,

The process has the advantage that it is slower Clock can be used as the participant clock. This means that it is always easy to generate Switching center and a flawless transmission ensured. Payments are made in the pay phone with internal pulses corresponding to the smallest coin values, eliminating the possible loss of a the inconvenient time of the end of the conversation is kept small. The cyclical digital time measurement which is restarted with each counting pulse of the coin cycle and the use of the counting pulse as Cashier impulses avoid errors in cashing, which result from the always existing time shifts of the coin rate could result.

By rounding up the coin rate to the next higher whole coin value, this is necessary in the event of tariff changes no changes are made to the coin mechanism within a decade. First one about it Any further change requires a different setting of the timer.

A circuit arrangement for carrying out the method according to the invention is characterized in that that with the first counting pulse a pulse generator is released, the pulses of which are sent to a first counter over a divider stage with the division ratio '^; of Minimum value to the smallest coin value and can be applied directly to a second counter and that depending on the position of an evaluation level, the states whether the first or one of the following counting pulses amVgt. in the first position n-1 pulses of the pulse generator are transmitted to the cash register and in the second position when the next count pulse the position of the first counter is transferred to a memory and the first and the second counter are reset again that when the second counter reaches the same position the status of the memory a pulse is sent to the payment and the second counter returns to NuU is provided. In addition, it is provided that after n-1 transmitted pulses a counter is blocked of the memory output and the external counting pulse to the debiting device Advantageously, the reset pulses for the first and second counters are derived from outside counting pulses via a delay device derived.

In a further embodiment of the circuit, the output for cashing in the first position of the evaluation stage n-1 are taken pulses via a delay element and an AND gate to the pulse generator and applied to the line of the memory output, so that the counter n \ pulses, Blocking. It is also advantageous that the counter has a further output, when it is reached a signal is given or the exchange connection is disconnected. This way, missing counting impulses of the coin cycle can be indicated.

The invention is explained in more detail with reference to the drawing described. It shows

F i g. 1 an impulse schedule and

F i g. 2 shows a basic circuit for obtaining the cashier pulses.

In FIG. 1, Tz denotes the normal subscriber cycle. In this example it should correspond to 35 Dpf. The coin cycle marked Mz is shown below. According to the proposed method, each counting pulse in this cycle is to be valued with 40 Dpf., Because this is the next value of the unit fee rounded up to the smallest coin value. The lines A to D below show the pulses occurring at various points in the coin dispenser.

Lines A and B represent the outputs of an evaluation stage 21, which have a signal jump once after the first and then after the second counting pulse of the Münzertjkts and remain as long as the exchange connection is established. The signal A is used to trigger the internal three impulses / ur collection of the minimum fee and the signal B / ur output of an internal clock.

When the first counting impulse of the coin cycle arrives from the exchange, line Mz. , The entire rounded up minimum fee, which in this example amounts to 40 Dpf., Must be collected. For this purpose, the first counting pulse and three further pulses generated in the coin machine with a pulse generator, line C. are used. In line D, in which the outgoing pulses to the debiting unit are recorded, there are four pulses, a counting pulse and the three internal pulses, ready for forwarding to the debiting unit after the counting pulse has arrived.

The second incoming counting pulse is forwarded directly to the debiting unit as a pulse for cashing; so it is also recorded in line D. The time was measured between the two counting pulses and an internal clock was formed from this, which corresponds to the ratio η (minimum fee to smallest coin value), in this example the same (line C). This clock now sends the next three impulses to the debiting unit, each of which triggers the payment of the smallest coin unit. The fourth pulse of this cycle, which is also generated, is suppressed and the coin cycle from the exchange is used for this. This avoids a double pulse. a counting pulse from the exchange and an internally generated pulse occur.

The suppression of the internal impulse compared to the one coming from the outside is more advantageous because it compensates for ever smaller temporal shifts in the counting impulses. In addition, the time measurement and the generation of the internal clock can be restarted from the incoming counting pulses. In lines C and D , the process described is illustrated graphically and it can be seen that the end line contains a complete series of pulses sent to the debiting unit for payment.

The process described is repeated for everyone

20 18157 2

still arriving counting pulse of the Mühzertaktes. At the end of the conversation after recognition of the counting pulse of the coin exchange is not the unit fee but only the smallest coin value collected. In the example described, a maximum of 9 Dpf. Too many can be counted.

The circuit arrangement for implementing the method according to the invention is shown in FIG. From the input circuit (not shown) in the payphone, the coin clock Mz arrives at an evaluation stage Zl. This outputs a signal at its output A after the first counting pulse and also at its output B after the second counting pulse. Furthermore, the coin clock Mz is applied to an AND gate 1, which is blocked by this for the duration of the counting file and otherwise forwards a series of pulses from a pulse generator 2 to a divider stage 3 when signal A is applied. At the same time, the counting pulses also reach an OR gate 4 and a further AND gate 6, as well as a delay element 5. whose output signal is used as the reset pulse.

The pulses of the pulse generator 2. the internal clock, are reduced in the divider stage 3 in the ratio η (n equals the minimum fee to the smallest coin value) and then reach a counter Z2. The output of the counter Z2 is connected to an input of the AND gate 6. If a counting pulse is applied to this AND gate 6, the status of the counter Z 2 is transferred to a memory 7.

From the output of AND gate 1, the internal clock arrives at the input of a further counter Z 3, the output of which is connected to an AND gate 8. Another input of this gate 8 is connected to the output of the memory 7 and a third input to the output B of the evaluation stage Z1. The AND gate 8 then emits a pulse. when the ß-signal is present, the memory 7 is set by the counter Z 2 and when a signal is present from the counter Z 3. This condition is met for the first time after the second counting pulse and then four times up to the next counting pulse if the division ratio is π = 4, as assumed in this example. The impulses obtained in this way could be passed on to the debiting unit, not shown, as cashier impulses. However, the procedure provides. that the fourth internal pulse is suppressed and the counting pulse of the coin cycle is used for this.

A counter Z 4 therefore receives the internal pulses via an OR gate 12 after the AND gate 8 and blocks an AND gate 9 located behind the AND gate 8 in the pulse path with its output signal. So there are only three pulses to the OR gate 4, where the counting pulse is added, so that for the Abbuchurigseihheit in this example required four impulses to arrive.

The counter and the divider stage described so far are from the one at the output of the delay element 5 existing signal is reset after each counting pulse and the process is repeated cyclically; This Reset pulse also blocks AND gate 6 during the reset time, so only precisely defined Pulses get into the memory 7. The counter Z 3 is additionally reset by each pulse appearing at the output of the AND gate 8. So that this is possible is. the pulse is delayed by a delay element 13 and then passes through an OR gate 14, where it is linked to the pulse coming from the delay element 5, to the reset input of the Counter Z 3.

Since the minimum fee must be collected with the first counting pulse, according to the procedure, however, the Counting impulse is only valid as a cashier impulse, three further impulses have to be generated internally at the beginning. from They cannot be released using the circuit described above, as these only take place after one cycle is ready for it. The internal clock reaches a delay element 10 from the output of AND gate 1. Its output is connected to an AND gate 11. Another input is with the A signal and a negating input is assigned the ß-signal. This will get in the time between the first and the second counting pulse by the delay time of the delay element 10 shifted pulses to the OR gate 12. The counter Z 4 connected to the output of the OR gate 12 provides, as before described, for the fact that only three pulses through the AND gate 9 and the OR gate 4 to the Arrive at the debit unit.

Should an externally coming counting pulse of the coin clock Mz fail, more than π pulses are sent to the counter Z4 from the AND gate 8 at its input. An additional output 15 next to the output, which blocks the AND gate 9 and thus the pulse path after η pulses, then emits a signal that can be used to report a fault or to disconnect the exchange connection.

The counters Zl, Zl and Z4 are expediently designed as ring counters. The divider level 3 can be set to the ratio n. Which corresponds to the ratio of the minimum fee to the smallest coin value

For this purpose 2 sheets of drawings

Claims (5)

Claims: characterized in that the counter (Z 4) has a further output (15), when it is reached a signal is given or the exchange connection is disconnected. 1. Payment method for payphones
with a separate coin cycle, thereby 5 . k e η η ζ e i c h η e t that the exchange has a Coin rate gives you the smallest Coin value rounded up value of the unit fee invention relates to a cashing method and a corresponds to the fact that in the coin meter with the first counting impulse ^ _n «arrangement for coin operated telephones with the minimum fee is collected that at the same time the io Schaltungsa * ~. ·. u: n: """ff ^ .w" ä ^ hctpn 7äh mau ses separate iv " ."! """," μ ,,, ΙγΗΗ "Prinvin, the minimum fee is collected that at the same time the _coin counter clocks. Time until the next counting pulse arrives, _the German state remote election is the principle of measured and an internal clock is formed from it, 'time pulse counting is used. In doing so, the consequence of which is the ratio (s) of the minimum fee for long-distance calls during the call ^ "-" ^A " ⁿ ""* runs on the caller's billing meter (Jessen ruigc utiii 11.1 iiuiui ^ _t , _v , w " corresponds to the smallest coin value, and that cashing takes place according to the internal clock. 2. Kas "> ierverfahren according to claim 1, characterized characterized in that the counting pulse which coincides with the counting pulse coming from the switching parts internal cashier pulse is suppressed and the counter pulse coming from the outside for triggering used for cashing. 3. payment method according to claim 1 and 2, characterized in that the time measurement ^ between all counting pulses coming from the exchange is repeated. 4. payment method according to claim 1 to 3, characterized in that the time measurement in done digitally. 5. Circuit arrangement for performing the method according to claim 1 to 4, characterized in that a pulse generator (2) is released with the first counting pulse, the pulses of which are sent to a first counter [Zl) via a divider (3) with the division ratio (n) / on minimum value klit Mürt and a second counter (3) with the division ratio (n) / on minimum value u ».». ^ - leads to the smallest coin / value and to a second counter 35 counting pulse generator. (Z3) dictates and that depends on this procedure SSSSeb ^ lM ^ be ^ rar-die ^ p ^ sio-ig ;: The frequency of these counting pulses is the distance between the two participants. Every step on that Charge counter means a charge unit. Since the Also counters every local call by switching to the next registered by one step, each direct dial telephone call costs a multiple of the local charge. With the remote dial coin the user of the sem Gesoräch must pay immediately, in Germany the Use lively DM 1.-, DM-, 50 and DM-IO. The basic clock rate for long-distance calls must therefore be based on the smallest unit of DM-.10. the The unit of charge for coin-operated calls is therefore not the same as the unit of charge for normal subscribers. At the moment, a correspondingly faster rate is being used in Germany due to the smaller fee unit Counting cycle created. For this purpose, a special signal, the coin identifier, is given by the mint that to create a faster beat in the