JPH042521Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a phone that instantly recognizes call charges, and in particular, a regular telephone without a charge collection mechanism is equipped with a frequency meter that counts the number of calls equivalent to the call charge, making it easy to manage and regulate outgoing calls. It concerns telephones.

[Conventional technology and its problems]

In general, there are two types of telephones that have a call charge collection function: public telephones and pink telephones.These telephones send a polarity reversal signal to the telephone line when the telephone line between the calling party and the called party is connected. The polarity is reversed and transmitted at regular intervals.
Publication No. 2510). The calling party's telephone detects the polarity reversal signal that arrives at regular intervals as a currency collection signal, and collects the charge for each frequency. However, since normal telephones do not have this mechanism, there is no way to know the call charges on the telephone terminal side. In addition to public telephones and pink telephones, there are regular telephones that count the minutes of a call, but when making a call, the time from when you pick up the handset until the other party picks up is added up.
The counted value does not necessarily match the meter at the central office. Also, if it matches the meter at the telephone office,
There are pink telephones that store coins for each call time, public telephones, and public telephones that use magnetic cards, but all of them have complex mechanisms, are large, expensive, and require coins or magnetic cards. The purpose of this invention is to use a pink telephone line for telephones that do not have a toll collection mechanism to match the call time count with the exchange meter, and also to provide a simple frequency counter in place of coins and magnetic cards. To provide a call charge instant notification telephone set which can manage and regulate outgoing calls simply, compactly, and inexpensively by using a telephone set.

[Means to solve the problem]

In order to achieve the above object, the call charge instant notification telephone according to the present invention has a telephone receiver which is different from a regular telephone having a DC loop telephone circuit connected to a telephone line that sends out a polarity inversion signal as a coin storage signal. a relay circuit which is provided with a hook switch that is closed by lifting the switch, and repeats the restoration of operation every time a polarity reversal signal is sent through the telephone line as a coin storage signal from the telephone office into the DC loop telephone circuit; and a frequency meter that is interposed between a power supply and a relay contact that is activated each time the relay circuit is operated, and that advances counting by the activation of the relay contact. In this case, the telephone set is provided with a slot for inserting a frequency meter to connect the relay contacts and the power source, and a switch is provided in the slot to connect or disconnect the DC loop telephone circuit by attaching or removing the frequency meter. I'm trying to establish a point of contact.

[Effect]

According to the present invention, when a call becomes possible, a polarity reversal signal as a coin storage signal is input through the line connection terminal, and then the relay circuit is activated to turn on and off the relay contact on the frequency meter side. As a result, the power is intermittently applied to the power meter, and the power is incremented each time. Since the polarity reversal signal arrives for each call frequency, the outgoing call charge can be easily determined by looking at the counter number of the frequency meter, and if the frequency meter is an insert type, it is possible to regulate outgoing calls. Therefore, charges are accumulated accurately in accordance with the call time, and charges are prevented from being counted simply by picking up the handset.

【Example】

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the call charge instant telephone set according to the present invention will be described in detail with reference to the drawings. Fig. 1 is an external view showing one embodiment of the present invention;
The figure is a circuit diagram of the above telephone, and FIG. 3 is a coin storage signal received by the pink telephone from the central office. As shown in these figures, a frequency meter M for counting the number of calls is attached to the side of the main body of the telephone. This telephone has a built-in circuit as shown in FIG. The telephone communication circuit consists of a transmitter circuit T, a balance circuit Z,
and a receiver circuit R are connected in parallel, from which connection terminals L ₁ and L ₂ to the exchange side are derived.
A ringing circuit of dial contacts D _i , D _s and a bell B is provided between both connection terminals L ₁ and L ₂ . Also,
A communication circuit is closed between the ringing circuit of the bell B and the connecting line to the connecting terminal _L2 by the hook switches H _s1 and H _s2 which are turned on by lifting the receiver. In addition to such a circuit configuration, the present invention is provided with a relay circuit in which contact b of the hook switch _Hs3 , which is opened in conjunction with lifting of the handset, a relay O, and a power source E are connected in series. Further, a relay R and a relay contact _r3 which is closed by the relay R are connected to the power source E at the contact a of the switch _Hs3 . A relay P activated by polarity conversion of the terminal input is interposed on the connection terminal L ₁ side, and a rectifier D ₁ and a relay contact r ₁ activated by the relay R are connected in parallel with this. ing. Furthermore, the connection terminal L ₁ is connected to a capacitor C ₁ , a diode d ₁ ,
A starting circuit for relay R is connected via a bridge rectifier D ₂ consisting of d ₂ , d ₃ , and d ₄ . Furthermore, between the connection point of the bell B on the connection terminal _L2 side and the hook switch _Hs1 , there is a relay contact _r2 which is closed by the relay R, and a relay contact r2 which is closed by the insertion of a frequency meter M, which will be described later, into the telephone. A contact m is provided in parallel, and the closing of this contact establishes electrical continuity between the connecting terminal _L2 and the transmitting circuit T side. Further, the main body of the telephone is provided with an insertion slot for inserting a frequency meter M, and this slot has a power terminal v connected to the power source E and a ground terminal s. The ground terminal s has the connection terminal
A relay contact p operated by a relay P provided on the _L1 side is connected. Furthermore, a contact m parallel to the relay contact _r2 faces the slot, and the insertion of the frequency meter M mechanically closes the contact m. The removable frequency meter M increments the counter with one energization, and increments the frequency each time the relay contact p is closed. This is a general counting counter and uses a well-known frequency meter. Note that EB in the figure is an emergency push button, which bypasses the relay contact r ₂ and contact m and connects to the connection terminal L _1.
This is intended to connect the transmitter circuit T side to the transmitter circuit T side. The operation of the call charge instant telephone set as described above is as follows. (1) For transmission If the frequency meter M is an insertion type, the frequency meter M
By inserting , the m contact becomes a contact. Under normal conditions, _L1 is connected to the exchange so that it has positive polarity and _L2 has negative polarity. When you pick up the receiver, L ₁ −D ₁ −D _i −T−H _s1 −m
−L ₂ creates a DC loop circuit for the exchange.
By dialing here, you will be connected to the other party. When the other party answers, it is used as a coin storage signal.
L ₁ is connected to - and L ₂ is connected to +. At this time, D ₁ becomes non-conductive, and L ₂ −m−H _s1 −T−D _i −P−L ₁
The P relay operates in this circuit. As a result, the contact p of the P relay becomes connected, causing the frequency meter M to count only once. When the coin storage signal ends, _L1 becomes +, _L2 becomes -, _D1 becomes conductive, and the P relay is restored. Thereafter, each time the coin storage signal arrives, the relay P operates to cause the frequency meter M to count. (2) In the case of emergency calls If it is necessary to make an emergency call without inserting the frequency meter M, by pressing the emergency button EB, the call can be made by contacting the EB contact instead of the m contact. (3) When receiving a call When you are not using this phone, turn off the power
-0-H _s3 (b)-Relay O operates when grounded, and the O contact is in contact. In the case of an incoming call, a signal with the waveform shown in FIG. 4 repeatedly arrives. When this incoming signal arrives, _L1 side +
When the waveform is , the current is L ₁ −o−C ₁ −d ₁ −R−d ₄ −
The current flows in the L ₂ circuit, and when the waveform is negative on the L ₂ side, the current is L ₂
−d ₃ −R−d ₂ −C ₁ −O−L ₁ flows in the circuit, and relay R operates each time a signal arrives, and each time r ₁ , r ₂ , r ₃
A contact point is a contact point. Additionally, during this time, bell B also rings. When you pick up the handset, along with the operation of relay R,
At L ₁ −r ₁ −D _i −T−H _s1 −r ₂ −L ₂ , the switch is placed in a response state. On the other hand, relay R is E-R-r ₃ -H _s3
(a) - Self-maintaining with earth and maintaining the communication circuit. As a result, when a call arrives, it is possible to respond regardless of whether or not the frequency meter M is inserted. During the call, the O relay is restored and disconnects C ₁ -D ₂ -R from the call circuit. The o-contact also serves to separate C ₁ -D ₂ -R from the communication circuit when making a call.

[Effect of the idea]

As explained above, according to the present invention, a general telephone having a DC loop telephone circuit connected to a telephone line that sends out a polarity inversion signal as a coin storage signal can be closed by lifting the handset of the telephone. a relay circuit section which is provided with a hook switch formed in the DC loop telephone circuit and repeats the operation recovery every time a polarity reversal signal is sent through the telephone line as a coin storage signal from the telephone office; A frequency meter is provided between a relay contact that is activated for each operation and a power source and advances counting by the activation of the relay contact, and the telephone is provided with a slot for inserting the frequency meter, and the frequency meter is inserted into the relay contact. In addition to making a connection between the terminals of the telephone and the power supply, the slot is equipped with a switch contact that connects and disconnects the DC loop telephone circuit by attaching and detaching the frequency meter. Even for standard telephones, the call charge can be immediately determined, and since the charge collection signal from the telephone office is used, there is no possibility of billing errors.

[Brief explanation of drawings]

Fig. 1 is an external view showing one embodiment of the present invention;
The figure is a detailed circuit diagram of the same as the above, and FIG. 3 shows the coin storage signal received by the telephone of the present invention, which is the same signal as the pink telephone receives from the central office. FIG. 4 is a waveform diagram of an incoming signal. M...degree type, m...contact that becomes contact by inserting M, P...relay to be activated for each coin storage signal, p...contact of P relay, EB...
Emergency push button, R...Relay for receiving incoming call signals,
r ₁ , r ₂ , r ₃ ... Contact of R relay, O ... Relay for normal operation (preparation of incoming circuit), o ... Contact of O relay, D ₁ , D ₂ ... Rectifier, C ₁ , C ₂ ... Capacitor, H _s1 , H _s2 , H _s3 ... Hook switch, B
... Bell, D _i , D _s ... Dial contact, T, Z,
R...elements of telephone circuit, E...power supply.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) For ordinary telephones having a DC loop telephone circuit connected to a telephone line that sends out a polarity inversion signal as a coin storage signal, by lifting the handset of the telephone. a relay circuit section with a hook switch interposed in the DC loop telephone circuit that repeats operation recovery every time a polarity reversal signal is sent through the telephone line as a coin storage signal from the telephone office; and an operation of the relay circuit section. 1. A call charge instant notification telephone set comprising: a frequency meter that is interposed between a relay contact that is activated every time the relay contact is activated and a power source, and that advances the count by the activation of the relay contact. (2) The telephone set is provided with a slot for inserting a frequency meter to connect the terminals of the relay contact and the power supply, and the slot is provided with a switch contact that connects and disconnects the DC loop telephone circuit by attaching and detaching the frequency meter. 2. The call charge instant notification telephone set according to claim 1.