JPH01168194A - Telephone exchange system - Google Patents

Abstract

PURPOSE:To display information in voice and in light and to improve the information identification performance by providing a speaker reproducing and informing a voice signal and discriminating a voltage signal sent through a control line and displaying the information in light such as line wire call, extension callout or doorphone call. CONSTITUTION:The system is provided with light emitting diodes LEDa, LEDb for display, a discrimination circuit 14 discriminating a voltage between control lines L3, L4 of interconnection wires and turning on/off the light emitting diodes LEDa, LEDb for display, a speaker 15 inserted in series between the control lines L3, L4, a DC cut-off capacitor 17, sound volume adjustment resistors 16a, 16b and a connector 18 or the like. Then a lead wire is used and connected to the connection terminal provided on the rear side of the body from the body inside. A modular jack 10 is connected to extensions L1', L2' from the master set through the connection terminal 34. Thus, the line operating state is recognized in light and voice, then convenience of use is served.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to telephone switching systems. [Background Art] Conventionally, there is a so-called home telephone as this type of telephone exchange system, but this system requires a dedicated telephone to be connected as a slave telephone, and the user can connect the telephone of his/her choice. I couldn't do it. There is also this type of telephone system that connects a doorbell, but the
tli! There are two extension lines connecting the phone and the slave phone, and the call signal on the doorbell side is also 46 on the outside line 4G.
Since the number was also sent from the main unit to the slave unit and the phone ringed the bell, there was a problem with poor identification. [Object of the Invention] The present invention has been made in view of the above-mentioned problems, and its purpose is to display information using sound and luminescent display to improve information identification, and to provide a system for general stand-alone use. The purpose is to provide a separation of telephone switching systems to which telephones can be connected. [Disclosure 1 of the Invention The present invention provides a control means for connecting extensions to each other, connecting an extension to an outside line, and connecting an extension to a doorphone call line in response to an incoming outside call, an outside call, an extension call, a doorphone call, etc. and,
Means for transmitting a voltage signal indicating the use status of the extension line and outside line by voltage via the control line, and a means for superimposing an audio signal corresponding to the use status of the extension line and outside line on the voltage signal and sending it via the control line. a telephone connection jack connected through the main device to an extension line that is switched and connected to an outside line, another extension line, and a doorbell call line;
A speaker plays and announces the above-mentioned audio signals such as the doorbell ringing tone and extension ringing tone sent through the control line connected to the main device, and an outside call is received by discriminating between the above-mentioned voltage signal sent out through the control line. , an extension call, a doorbell call, and a display section that displays information such as a light emitting display. The present invention will be explained below with reference to Examples. Figure 1 shows the overall configuration of an embodiment of the telephone system of the present invention.This embodiment is capable of internal telephone calls, and the main device 1 is connected to an external telephone from a central telephone office. The line 2 is connected to the door phone 3 and the call fIA4 is connected as an external line, and an internal line consisting of an extension line and a control line is connected.
Multiple sets of X5 are connected. Each internal #I5 is connected to a remote control 6 . . . that constitutes a telephone outlet. As shown in Fig. 2, the holder 6 has a body 9 composed of a cover 7 made of a synthetic resin molded product and a body 8, and the holder 6 is sometimes attached to the body 8 in a lower position. A mono error jack arranging part 24 for holding the mono error jack 10 is provided at a position where the mono error jack 10 is placed, and a board arranging part 23 for arranging the circuit board 11 is provided at a part above this arranging position. The mono error jack placement portion 24 passes through the back side of the body 8, and the mono error jack 10 is placed inside through this through hole. The mononilar gloss 10 is connected from inside the body 8 to a connecting terminal portion provided on the back surface of the body 8 by lead wires 20a and 20b. In addition, in the board mounting section 23, the circuit board 11 is placed on the lips 12a+12b provided on the sides, and the fixing screws 13a, 13b are screwed into the holes provided in the lips 12a, 12b.
be placed in a fixed position. A circuit shown in FIG. 3 is wired to the circuit board 11. In other words, light emitting diodes LEDa and LEDb for display,
A speaker inserted in series between the discrimination circuit 14 that discriminates the voltage between the internal M5 control line L*-L4 and turns on and off the light emitting diodes LEDa and LEDb, and the control #tL3. 15, DC cut capacitor 17, volume adjustment resistors 16a, 16b switched by adjustment switch S W o ), connector 18, etc. Contact 1! It is connected to the terminal portion from inside the body 8. The mononilar jack 10 is connected to #iL I', L2' from the main device 1 through the connection terminal section 34, and the circuit on the circuit board 11 is connected to the control #iL from the main device 1 through the connection terminal section 34. ,,L,. On the other hand, the force par 7 has locking claw pieces 21 protruding toward the body 8 side on both sides facing downward when installed, and locking claw pieces 21 are provided on both sides of the end face facing upward toward the body 8 side. Protruding,
By inserting these locking claw pieces 21 into corresponding through holes 22 provided on the body 8 side and locking the claws at the tips of the locking claw pieces 21 on the back surface of the body 8, the body 8
It can be attached and fixed to. On both sides above the surface of the protrusion 7a, which becomes the front surface when the cover 7 is attached, are light emitting diodes L E Da, L E Db'I! : A hole 25 that forms a mist film and constitutes a display section is drilled, and below the hole 25 is an audio output hole 26 of the speaker 15, and further below that hole 25 is exposed the legitimate child 100 of the volume adjustment switch SW0. A hole 27 is formed therein, and an insertion hole 28 corresponding to the mock error jack 10 is formed below the hole 27. On both sides of the cover 7, there are two pairs of claws 3 that are engaged with engagement portions 30 provided on both sides of the synthetic resin mounting frame 29, respectively.
1 are protruded from each other, and locking circular portions 32 for locking the claws of the metal mounting frame are provided on both side surfaces of the projection 7a. The speaker 15 connects the plug 34 provided at the end of the connection wire to the connector 18 of the circuit board 11. When the cover 7 formed in this manner is attached to the body 8, a housing 6 having a container body 9 having dimensions corresponding to the dimensions of a series monoule of a ready-made wiring device is completed. At this time, a vertically movable opening/closing J% 33 is disposed between the front surface of the monocular jack installation portion 24 and the insertion opening 28 of the cover 7, so that the insertion opening 28 can be opened and closed. In other words, the opening/closing door 33 can be slid by engaging the sliding grooves provided on the back surface of the cover 7 at both ends thereof. When attaching the child separation unit 6 to a built-in box, etc., use the mounting frame 29 with a series of monocle dimensions.
Fit the protrusion 7a of the cover 7 into the opening window of the locking claw 31.
If it is fixed to the locking portion 30 of the mounting frame 29 and attached to the mounting frame 29, it can be arranged in the same way as a general wiring device and advance wiring can be performed. Note that the discriminator circuit 14 has a signal voltage between the control lines Ls and Ls that is, for example, a Zener voltage of 6.8 of a constant voltage diode ZD.
If it is less than v, transistor Q is off, and transistor Q! turns on, lights up the light emitting diode LEDb, and if the signal voltage is 6.8V or more and the Zener voltage of the constant voltage diode ZD is below 12V, the transistor Q is turned on, the transistor Q2 is turned off, and the light emitting diode LEDb is turned on. Turn off the light. Also, the signal voltage is 12V
above, and the Zener voltage of the constant voltage diode ZD is 18
If it is less than V, transistor Q turns on and the LED emits light.
Turn on a. Furthermore, if the signal voltage is 18V or more, transistor Q3 is also turned on, and the developed photodiode LEDa,
Turn on LEDb. Therefore, depending on the signal voltage from the control circuit 56, the light emitting diodes L E Da, L E D
This makes it possible to control the light emission of b. In this embodiment, during standby, the developed photodiode LEpa,
Turn off LEDb, and turn off light emitting diode L when an outside line is in use.
A voltage signal is sent from the main device 1 to light up only the light emitting diode LEDa, if the extension line is in use, only the light emitting diode LEDb, and if both the extension line and the outside line are in use, the developed light diodes LEDa and LEDb. Figure 4 shows a circuit block diagram of an embodiment of the main group W11, and the external line 2
An incoming call detection section 37 for detecting an incoming signal, a DC closing section 38, and a coupling transformer 39 for sending and receiving audio signals to and from the outside line 2 are connected to the line L I-L 2 constituting the outside line 2.
Furthermore, a communication current detection circuit 40 and an outside line switching relay Ry1 . Switching contact 411 of...
・Inner #iL, ° corresponding to each child separation 6 via the b contact of
, L2°. Also the main group r! 11 is provided with a plurality of connection terminals 421 . . . for connecting the communication lines 4 of the door phones 3 . and is connected to the door phone call circuit 44 via the analog switch S1 . The door phone call circuit 44 is connected to a cross point switch 45, which will be described later. The coupling transformer 39 is connected to the output end of the hold tone generator 46 and the input end of the outside line dial tone detector 47, and is further connected to the button dialer 48 via an analog switch S.
The input terminals of the push button dial signal receiving section 491 . . . and the external line input terminal of the cross point switch 45 are connected via the analog switch S4. Furthermore, a sound source generating section 5 outputs an audio signal such as a melody signal to the cross point switch 45 via the amplifier A4.
0 and a security signal detection unit 51 for converting into a digital signal according to the presence or absence of a security signal consisting of a low frequency signal inputted from a security signal input terminal 52 connected to an external crime prevention or disaster prevention sensor, and an emergency button. connection terminal 53 for making an outside line call, a dial relay Ryd for making an outside call, and the switching contacts 41 of the outside line switching relay RI+, . . . 7 dial pulse detection unit 54. ...
and current supply source for internal telephone calls ■1... and furthermore
A remote r/f display drive unit 55 for sending voltage signals through controls #iL, , L, and a sound source generator 81
1! Audio signal from +50 to cross point switch 4
It is provided with amplifiers A, . A control circuit 56 processes the signal exchange between these circuits, and is composed of a microcomputer or the like. 61 in FIG. 4 is a date circuit. Next, the operation of this embodiment will be explained. First, in this embodiment, when the power is turned on and the system starts, the control circuit 56 consisting of a one-chip microcomputer performs initial settings, and then enters a standby state, and then performs the determination of 7-/Quo 7, and then the incoming call. It determines the presence or absence of an extension call and processes an outside line call, determines the presence or absence of a doorphone call and processes the doorphone call, determines the presence or absence of an extension call and processes the extension call, processes an outside line call, and so on. Now, when you raise the handset of the general standalone telephone fiT to make an outside call, at this time, the switching contacts 411 of the outside line switching relays Ry, . . . are connected to the a contact side, that is, the cross point switch 45 side. For example, the corresponding hook/dial pulse detection section 54. detects the current generated by direct current connection by the telephone and inputs a detection signal to the control circuit 56. The control circuit 56 is the Xs+ of the cross point switch 45. is turned on and a pseudo transmission signal of 400 Hz is sent to the cross point switch 45 and the corresponding slave 6 through the date G and the extension L.
Send through I'lL2''. At the same time, the control circuit 56
controls the child separation I/F display drive section 55 to control the child separation 6.
The discrimination circuit 14 outputs a voltage signal that lights up a light emitting diode La for indicating that an outside line is busy. At this time, the light emitting diode Lb indicating that the extension line is busy is controlled to be turned off. This transmission continues until the dial signal is input, and the first dial signal ■ is sent to the hook dial pulse detector 54. (
If the button dial type is used, when the button dial signal receiving section 492) detects the signal, the control circuit 56 stops outputting the pseudo call signal and stores the dial data in the built-in buffer memory. Then activate the built-in 3 second timer. If the second dial signal (■) is detected while this timer is operating, it is determined that an outside call has been made. Second dial signal within these 3 seconds■
If there is no input, it is determined that the call is an extension call, and the extension call processing is performed. Now, in the case of an outside call, the data of the dial signal that is subsequently inputted is sequentially stored in the buffer memory, and a signal for operating the DC connection section 38 is output. When the line is closed, the outside line dial tone detection unit 47 detects the outside line dial tone and the detection signal is input to the control circuit 56.The control circuit 56 sequentially reads out the dial data stored in the buffer memory from the first one and switches the analog switch. By operating Si and the push button earer 48 or by operating the dial relay Ryd, dial signals are sequentially sent to the outside M2. At the same time, the data of the dial signal input from the general standalone telephone WIT is stored in the buffer 7 memory.In this way, the dial data from the general standalone telephone T is stored in the buffer memory at the same time as the dial signal is sent to the outside M2. do. Then, when the dial data stored in the buffer memory is used up and a certain period of time (for example, a 5-second timer is activated and this 5 seconds is set as a certain period of time) has elapsed, the next call is made to an outside line. Incidentally, when sending the dial signal to outside #I2, the line connection is interrupted. Of course, whether to operate the push-button earler 48 or the earl relay Ryd is determined depending on the type of line. Thus, a call is made via the coupling transformer 39, the analog switch S1 for muting, the cross point switch 45, the switching contact 411, etc., and the extension lines L1° and L2′. By the way, after the dial signal is input from the general standalone telephone T connected to the remote control unit 6 and the pseudo call signal is output,
If the next dial signal is not input within 3 seconds, the input dial data is determined to be an extension number, and the control circuit 56
is Xsl of cross point switch 45 which is turned on from off-hook. Turn off the external #I2 I)Ill
At the same time, turn on X53t to set the call bus to #IL+1, L, and I. Further, the light emitting diode La of each remote control unit 6 that has been lit since off-hook is turned off, and at the same time, a voltage signal is outputted from the remote control I/F display drive unit 55 to turn on the light emitting diode Lb indicating that the extension line is busy. Further, the control circuit 56 controls the sound source generator 50 to output an extension calling audio signal. This audio signal is sent out through the inner #i L + ' -L 2°, and is also superimposed and sent out to the control line L i -L- of the remote control unit 6 on the other side through the X Sos of the cross point switch 45 . Note that these transmissions are performed alternately. Now, in the remote control unit 6 to which the audio signal has been sent, a ringing tone is emitted from the speaker 15. When the handset of the general standalone telephone T connected to the remote control unit 6 is picked up due to this ringing, the hook/dial pulse detection section 542 detects this off-7 hook and sends a detection signal to the control circuit 56, for example. The control circuit 56 turns on the cross point switch 45 based on this OFF signal, and turns on the calling side's child separation 6.
#lL + 'tLz' and #IL of child a6 of the called side
+'+L2'' to establish a call state.Then, control #
iL3. It turns off the output of the audio signal for extension calling to L, and sends an audio signal indicating that the extension is busy to the other extension @L, ”, L2°. From now on, the general caller connected to the calling side 6 standalone phone fi
T and the general standalone telephone fi connected to the remote telephone 6 of the called party.
You will be able to make calls to and from T. At this time, the switching contacts 41. of the external line switching relays Ry, . a
It remains connected to the contact side. By the way, when an incoming call signal is input from outside #I2, the incoming call detection section 37 detects this incoming call signal and outputs an incoming call detection signal to the control circuit 56. When the control circuit 56 receives this incoming call detection signal, it stops the excitation of each external line switching relay R7, . . . and switches each switching contact 411 . . . to the b contact side. Therefore, the general stand-alone telephones T connected to the individual telephones 6, . When the handset of the general standalone telephone fiT connected to a certain remote telephone 6 is raised due to this ringing, a communication current will flow through the line. This call current is detected by the call current detection circuit 40, and upon this detection, the control circuit 56 detects that any of the general standalone telephones T is turned off, turns on the DC closing part 38, and simultaneously switches on the outside line switching relay. R)'++... is excited, and each switching contact 41.・
...Switch to the a contact side. As a result, the hook/dial pulse detection section 54. The control circuit 56 detects that the handset of the general standalone telephone 1fiT connected to the remote telephone 6 has been picked up, and at the same time as this detection, the control circuit 56 detects off-hook. ,. Turn on and separate #12 and child 6.
Among them, #[L+'-L2' is connected to enable outside calls. Now, if you want to make an extension call during an outside line call, or if you want to make a doorphone call, you can put the call on hold. First, the handset of the telephone T in question is not on-hook during an outside line call, and a dial signal corresponding to the hold is sent, for example, "
When θ'' is sent from the telephone 1flT, the control circuit 56 reads this dial data, determines that it is a hold process, and performs the hold process.In other words, the cross point switch 45 Xs is turned off, and Xs++*Xs+7 Then, the hold-tone generator 46 is operated to send the hold-tone melody signal to the outside line 2 via the 9-coupling transformer 9, and the call processing is started while keeping the DC closing unit 3 in the on state. After entering the above-mentioned hold state, if the input dial data is other than 7" which specifies a door intercom call, an extension call is made and connection to the extension number corresponding to the extension number is made by the above-mentioned extension process. Also, if the hold state continues for a certain period of time or more, the sound source generator 50 holds the hold! An audio signal of an F alarm sound is generated and sent to each child station 6 through a control line L*-L<, and is sounded from each speaker 15. To release from hold, call any phone you went off-hook f
All you need to do is send a dial signal of "0" from the iT,
When the control circuit 56 detects the dial data of ``, it stops the operation of the hold tone generator 46 and controls each part to return to the original outside line call state.Now, the specified dial data for the doorphone call is input after being put on hold. Then, the control circuit 56 controls the door phone call processing.When transitioning from an outside line call state to a hold or door phone call, when the dial data of "O" is input, the X corresponding to the outside line of the cross point switch 45 is input. s
Io is turned off, and at the same time, the remote I/F display drive unit 55 generates a voltage signal that also lights up the light emitting diode Lb that indicates that the extension line is busy, and applies it to the control line, L, and the light emitting diode. La%Lb are turned on, respectively. This is a hold process, and when the dial data of "7" is input, the control circuit 56 determines that it is a doorbell call and turns off the crosspoint switches 45, Xs, and at the same time responds to the doorbell call line. Turn on X513 of point switch 45. Then, for example, the analog switch S is turned on to connect the door phone 3 to the door phone call circuit 44 to enable a door phone call. Note that the DC closing section 38 continues to be in the on state to maintain line closure. In addition, the external line switching relay Ry, , is the switching contact 41. a
Maintain the state connected to the contact side. By the way, in the process of making the above-mentioned doorphone call, the hold dial data ``O'' was first sent, but the hold process can be completed by simply sending the dial data ``'7'' from the general standalone telephone Iso T during an outside line call. You can also make a doorbell call. In other words, when dial data "7" is detected! rllll
The l1 circuit 56 is the xsl of the cross point switch 45. Off′:! -Se, X s + y t X s +
Turn on *. Then, the hold tone generator 46 is operated to send the hold melody signal to the outside M2 side, and at the same time, the analog switch S is turned on to connect the door phone 3 to the door phone call circuit 13 to enable door phone calls. The child separation I/F display drive section 55 also generates a voltage signal that lights up the light emitting diode Lb that indicates that the extension line is busy, and applies it to the control line L v -L- to light up the light emitting diodes La and Lb, respectively. . Incidentally, the DC closing section 38 continues to be in the on state to maintain the line connection as in the case described above. The above explanation was about the call operation, but when a security signal or emergency push button operation signal is input, the control circuit 56 causes the sound source generator 50 to generate an alarm audio signal, and each child is separated from the 6. ...Hecross point switch 45 and control #! L, ,L, and each speaker 1
5 can also cause an alarm to sound. [Effects of the Invention] Since the present invention is configured as described above, it is possible to construct a system that allows calls to an extension or a doorbell by simply connecting a general stand-alone telephone to a remote telephone. It is less expensive than a system that uses a telephone, and it is also easy to use because the usage status of the line can be recognized separately by light and voice.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram of an embodiment of the present invention, Fig. 2 is an exploded perspective view of the above-mentioned child separation, Fig. 3 is a circuit diagram of the same child separation discrimination circuit, and Fig. 4 is the same main device. FIG. 1... Main device, 2... Outside line, 3... Door phone, 4
...Telephone line, 5...Internal line, 6...Child separation, 10.
... Jack, 15 ... Speaker, 50 ... Sound source generation section, 55 ... Remote I/F display drive section, 56 ...
・Control circuit, LEDa, LED & . . . Light emitting diode, L, , L, . . . Control line, L I ' l L 2゛ . . . Extension line. Agent Patent Attorney Ishi 1) Choshichi

Claims (2)

[Claims] (1) Connections between extensions or connections between extensions and external lines in response to incoming external calls, outgoing calls, extension calls, doorbell calls, etc.
A control means for connecting the extension line and the telephone call line of the doorbell, a means for sending a voltage signal indicating the use status of the extension line and the outside line via the control line, and an audio signal corresponding to the use status of the extension line and the outside line. a main device comprising at least means for superimposing the voltage signal on the voltage signal and sending it out via a control line, and a telephone connection device connected through the main device to an extension that is switched and connected to an outside line, another extension, or a call line of a doorbell. jack, a speaker that reproduces and announces the above-mentioned audio signals such as doorbell ringing and extension ringing that are sent through the control line connected to the main device, and a speaker that reproduces and announces the above-mentioned audio signals such as the doorbell ringing tone and extension ringing tone that are sent out through the control line connected to the main device, and the above-mentioned voltage signal that is sent out through the control line. 1. A telephone exchange system comprising a slave unit provided with a display section that distinguishes and displays information such as an incoming outside call, an internal call, a doorbell call, etc. (2) When an extension call is made, the main unit sends the above-mentioned voice signal for the extension call to the extension and control line, and stops sending the voice signal on the control line side when the off-hook of the telephone connected to the slave unit on the called side is detected. A telephone switching system according to claim 1, characterized in that: