JPH0451108B2 - - Google Patents

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention relates to a telephone transfer device connected to a telephone answering machine. (Prior Art) Conventionally, a calling telephone A, a receiving telephone B, a telephone transfer device C, a calling telephone D, and a transfer destination telephone E are used.
and a telephone answering machine F capable of recording messages from a calling telephone A on a magnetic tape or the like, and which are connected to each other are known.
For example, calls made to an office where you are not home between the time you go out and 8:00 p.m. are forwarded to your home office, home, etc. by telephone forwarding device C, and subsequent calls are forwarded to telephone answering machine F. The information was recorded to prevent phone calls from being missed. Furthermore, the transfer function and telephone answering function could be switched by a PB tone input from the transfer telephone E. (Problem to be Solved by the Invention) However, in the known telephone transfer device, although the receiving telephone B, the telephone transmitting device C, and the calling telephone D are each independent, they are arranged in close proximity to each other. Since these parts were connected to each other, the parts were intricately connected, large, and very unsightly. Furthermore, since an independent telephone answering machine is to be connected to the connected objects connected in such a complicated manner, the cords will be distorted, and an improvement in this point has been desired. Moreover, two telephone lines, one for the receiving side and the other for the calling side, are connected to the telephone transfer device to which the telephone answering machine is connected, but it becomes even more complicated if a telephone is attached to each of the two telephone lines. Therefore, it is necessary to provide the telephone transfer device itself with normal telephone functions and simplify the configuration as much as possible, but in this case, unless the method of connecting the handset is devised, the impedance will be disturbed and it will not be possible to make a good call. There was a fear that it would be damaged. (Means for Solving the Problems) Therefore, the present invention includes a called side separating section 18 connected to the receiving telephone line 12, a calling side separating section 17 connected to the calling side telephone line 11, and both separating sections 17, 18. between the calling telephone A and the called telephone line 1.
When a call is made via 2, the calling party telephone line 11
a transfer unit 44 that calls the transfer destination telephone E via the E and connects the transfer destination telephone E so that mutual communication is possible; and the separation unit 17,
A telephone answering machine 3 has a handset and a receiver 6 installed between 18 and 18, and automatically answers a call to the called telephone line 12 and stores a message from the caller.
9 is connected to the calling side telephone line 11, and an automatic call receiving circuit 43 that automatically closes the calling side telephone line 11 when a call is received, and an operation signal inputted through the calling side telephone line 11. A signal sorting device 38 for identification is connected to the transfer section 44 and the telephone answering machine 39, and either the transfer section 44 or the telephone answering machine 39 is selected according to the signal inputted by the signal discriminating device 38. The gist is the configuration of a telephone transfer device connected to a control section 41 that activates and stops one of them. (Embodiment) An embodiment of the present invention will be described with reference to the drawings. 1 is a main body of a telephone transfer device, 44 is a transfer section thereof;
includes a push button section 2 consisting of a numeric keypad (numeric keys), a calculation function key 3, a call button 4 for manual transfer, a liquid crystal display section 5 for displaying various telephone numbers, a handset 6, and a telephone mode or automatic telephone Slide switch 7 to switch to transfer mode;
A known hold button 8 for holding a telephone line, station line selection buttons 9 and 10, etc. are provided. The details of the internal circuit will be explained in detail with reference to the block diagrams and circuit diagrams shown in Figure 4 and below.
12 is a telephone line connected to the transfer destination telephone E, and 12 is a telephone line connected to the calling telephone A, which are connected to relay contacts 13 and 14, respectively. The relay contacts 13 and 14 are connected to the incoming call detection unit 16 connected to the eye port 15 when on standby for a call.
When using a telephone, the 2-wire and 4-wire separation parts 17, 1
8, respectively. Said 2 lines 4
The line separation units 17 and 18 include a variable equivalent circuit 1 that has an impedance equal to that of the telephone lines 11 and 12.
Connect 9 and 20 respectively. Reference numerals 21 and 22 are dial pulse generation relay contacts provided between the two-wire and four-wire separation sections 17 and 18 and the relay contacts 13 and 14, respectively. Terminals H and I on the output side of the 2-wire and 4-wire separators 17 and 18 are connected to the input sides of amplifiers 23 and 24 in FIG. 6, respectively. The output side of the amplifier 23 reaches a terminal J via an analog switch 25a in an analog switch circuit 25 and an amplifier 26, and the terminal J is connected to the input side of the 2-wire/4-wire separation section 18. Similarly, the output side of the amplifier 24 is connected to the analog switch 2
5b and an amplifier 27 to the input side of the 2-wire/4-wire separation section 17 via a terminal K. As a result, the signal input through the telephone line 11 is transmitted as follows: relay contact 13 → 2-wire 4-wire separation section 17 → terminal H
→ Amplifier 23 → Analog switch 25a → Amplifier 26 → Terminal J → 2-wire/4-wire separation unit 18 → Relay contact 14 While being amplified, the signal is transmitted to the telephone line 12 and output, and the signal input from the telephone line 12 is also transmitted to the relay. Contact 14 → 2-wire 4-wire separation section 18 → Terminal I
→ amplifier 24 → analog switch 25b → amplifier 27 → terminal K → 2-wire/4-wire separation unit 17 → relay contact 13 While being amplified, the signal is transmitted to the telephone line 11 and output. The other terminals L and M of the two-wire and four-wire separation sections 17 and 18 are connected to the analog switch 25 shown in FIG.
c and analog switch 25d. Each SW2 of the analog switch 25c and the analog switch 25d is a signal selection device 3 that identifies PB tones input through the telephone lines 11 and 12.
The output side of the signal selection device 38 is connected to the eye port 15. In addition, analog switch 25c and analog switch 25d
SW3 is connected to the input side of the handset 6 and the speaker 28 via an analog switch 25e. The output side of the handset 6 is shown in FIG. 8, and is connected to the analog switch 25f and the analog switch 25 in FIG.
Connect to g. In addition, the analog switch 25
f. Connect the output side of the PB tone generator 30 to the analog switch 25g, and connect the output side of the PB tone generator 30 to the analog switch 25g.
The input side of 0 is connected to the eye port 15. In FIG. 4, 31 is a central processing unit, 32 is a program ROM, 33 is a storage unit, and 34 is a storage unit 33.
35 is a switch group consisting of the push button section 2, calculation function key 3, call button 4 for manual transfer, etc., 36 is a key matrix of the switch group 31, and 37 is a ring tone generation circuit. Therefore, the telephone line 11 and the relay contact 13
A known telephone answering machine 39 is installed between each of the telephone lines 12 and the relay contacts 14, which records on magnetic tape messages received during the user's absence. The power supply of the telephone answering machine 39 is connected to a service outlet 40 suitably provided in the main body 1. 41 is a control unit that controls ON/OFF of the outlet 40 according to a command from the central processing unit 31;
Reference numeral 42 denotes a power supply unit of the main body 1, and 43 refers to a power supply unit of the main body 1 which, when the main body 1 is switched to the automatic call transfer mode by the slide switch 7, receives a call on the telephone line 11 side, and if a certain period of time elapses without picking up the handset 6. This is an automatic incoming call circuit that automatically turns on relay contact 13. (Function) When the mode of main unit 1 is switched to automatic call transfer mode by slide switch 7, and a call is made from telephone set A to telephone line 12, relay contact 1
The incoming call is detected by the incoming call detection section 16 via the incoming call. Then, the telephone number of the transfer destination telephone E registered in advance in the storage section 33 is read out by the central processing section 31, the relay contact 13 is turned on, and the PB tone generator 30 outputs a PB tone.
At this time, SW1 of analog switch 25g is OFF.
Then, SW1 of the analog switch 25f is turned on, so the PB tone is output from the analog switch 25.
via f, analog switch 25b → amplifier 2
7 -> terminal K -> 2-wire/4-wire separation section 17, the signal is separated at the 2-wire/4-wire separation section 17, and a call is made from the telephone line 11. When the answer call from the forwarding destination telephone E in response to the call is detected by the incoming call detection unit 16, SW1 of the analog switch 25a and SW1 of the analog switch 25b are turned ON, and the telephone line 11 and the telephone line 12 are connected to each other as a relay. Contact 13 → 2-wire 4-wire separation part 17 → Terminal H
→ Amplifier 23 → Analog switch 25a → Amplifier 26 → Terminal J → 2-wire 4-wire separation section 18 → Relay contact 14 and relay contact 14 → 2-wire 4-wire separation section 18 → Terminal I
-> Amplifier 24 -> Analog switch 25b -> Amplifier 27 -> Terminal K -> 2-wire/4-wire separation section 17 -> Relay contact 13 A line is connected in both directions, and a call can be made between the calling telephone A and the transfer destination telephone E. When the handset 6 is picked up while the transfer operation is being performed as described above, the central processing unit 31 detects that the handset 6 is off-hook for intervention, and activates the analog switch circuit 25. , the signal from the telephone line 11 side is relay contact 13 → 2 wire 4 wire separation section 17 → terminal L
→ Analog switch 25c → Analog switch 2
5e Also, the signal from the telephone line 12 side is relay contact 14 → 2 wire 4 wire separation section 18 → terminal M
→ Analog switch 25d → Analog switch 2
5e and are transmitted to the handset 6, respectively, and the signal from the handset 6 is transmitted to the amplifier 29 → terminal N → analog switch 25f.
→ Analog switch 25b → Amplifier 27 → Terminal K
→ 2-wire/4-wire separation unit 17 → relay contact 13 → telephone line 11 Also, amplifier 29 → terminal N → analog switch 25f
→ Analog switch 25b → Amplifier 26 → Terminal J
→ 2-wire/4-wire separation unit 18 → relay contact 14 → telephone line 12, respectively. At this time, the handset 6 includes a 2-wire 4-wire separation section 17 (equivalent circuit 19) and a 2-wire 4-wire separation section 18.
(equivalent circuit 20), so
As is well known, no change occurs in the AC impedance on the telephone line 11 or telephone line 12 side, and a good separation effect can be expected by the 2-wire/4-wire separation section 17 and the 2-/4-wire separation section 18. Therefore, when you go further away from your home or other destination, or when you do not want to receive work-related calls from the office at the destination, you can use the PB.
Using a desired telephone capable of transmitting tones, for example, the transfer destination telephone E, the function of the transfer unit 44 of the main body 1 is stopped, and a signal for activating the answering machine 39 is placed on the telephone line 11 of the calling party. Send.
That is, when a call is made to the telephone line 11 side, the automatic call receiving circuit 43 is activated after a certain period of time, and the relay contact 13 is turned ON. However, the transfer telephone E
Press the pushbutton, etc. to select the pre-specified
When the PB tone is sent, relay contact 13 → 2 wire 4 wire separation section 17 → terminal L
→Analog switch 25c→Signal sorting device 38 The prespecified PB tone is identified by the signal sorting device 38 and transmitted to the central processing unit 31 via the eye port 15. Here, if this signal is identified as a signal that stops the function of the transfer unit 44 of the main body 1 and activates the answering machine 39, from then on, even if an incoming call is detected on the telephone line 12 side, The transfer operation is no longer performed, and at the same time a signal is sent to the control unit 41 to turn on the service outlet 40. Therefore, when a call is made to the telephone circuit 12, only the answering machine 39 is automatically activated to record the other party's message on a magnetic tape or the like. In the above operation, the telephone transfer unit 44 and the answering machine 39 can be controlled in a plurality of combinations by transmitting different PB tones. Furthermore, by connecting desired devices to the service outlet 40, various devices can be controlled. (Effects) As explained at the beginning, conventionally, calling telephone A and
A receiving telephone B, a telephone transfer device C, a calling telephone D, a forwarding telephone E, and a telephone answering machine F capable of recording messages from the calling telephone A on magnetic tape or the like are independently provided, and these are mutually connected. For example, calls made to an absent office between the time you go out and 8 p.m. are forwarded to your home office, home, etc. by telephone transfer device C, and then the calls are made. Incoming calls were recorded on telephone answering machine F to prevent missed calls. In addition, the transfer function and telephone answering function can be switched by a PB tone input from the transfer destination telephone E. However, in the known telephone transfer device, although the receiving telephone B, the telephone transmitting device C, and the calling telephone D are each independent, they are arranged close to each other, and they are connected to each other. Because of this, this part had to be intricately connected and large, making it look very unsightly. In addition, since an independent telephone answering machine is to be connected to the complicatedly connected connectors, the cords are distorted, and an improvement in this point has been desired. Further, two telephone lines, one for the receiving side and the other for the calling side, are connected to the telephone transfer device to which the telephone answering machine is connected, but it becomes even more complicated if a telephone is attached to each of the two telephone lines. Therefore, it is necessary to provide the telephone transfer device itself with normal telephone functions and simplify the configuration as much as possible, but in this case, unless the method of connecting the handset is devised, the impedance will be disturbed and it will not be possible to make a good call. There was a fear that it would be damaged. However, in the present invention, the called side separation unit 18 connected to the called side telephone line 12 and the called side telephone line 11
a transmitting side separation section 17 connected to the , both separation sections 17 ,
18, when a call is made from the calling telephone A through the called telephone line 12, a transfer section 44 calls the forwarding telephone E via the calling telephone line 11 and connects the telephone so that mutual communication is possible; It has a handset/receiver 6 provided between both separating parts 17 and 18, and a telephone answering machine 39 is connected to the telephone line 17 on the called side, which automatically answers a call and stores a message from the caller. , an automatic call receiving circuit 43 that automatically closes the calling telephone line 11 when a call is placed on the calling telephone line 11; and the calling telephone line 1;
The transfer unit 44 and the telephone answering machine 39 are connected to a signal selection device 38 for identifying operation signals inputted through the transfer unit 44 and the telephone answering machine 39.
This outlines the configuration of a telephone transfer device connected to a control section 41 that activates either the transfer section 44 or the telephone answering machine 39 and stops either of them in response to a signal input by the telephone. can be well overcome.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic diagram, Fig. 2 is a known example, Fig. 3 is a schematic diagram of the present invention, Fig. 4 is an overall block diagram, and Figs. 5 to 8 are circuit diagrams of main parts. be. Explanation of symbols, 1...Main body, 2...Push button section, 3...Calculation function key, 4...Call button for manual transfer, 5...Liquid crystal display section, 6...Handset,
7...Slide switch, 8...Hold button,
9, 10... Office line selection button, 11, 12... Telephone line, 13, 14... Relay contact, 15... Eye port, 16... Telephone call detection unit, 17,
18... 2-wire 4-wire separation section, 19, 20... Variable equivalent circuit, 21, 22... Relay contact for dial pulse generation, 23, 24... Amplifier, 25... Analog switch circuit, 25a-g... Analog switch, 26, 27...amplifier, 28...speaker, 29...amplifier, 30...PB tone generator,
31...Central processing unit, 32...Program, 33
...Memory section, 34...Backup battery,
35...Switch group, 36...Key matrix, 37...Ring tone generation circuit, 38...Signal sorting device, 39...Telephone answering machine, 40...Service outlet, 41...Control unit, 42... Power supply unit, 43... automatic call receiving circuit, 44... telephone transfer section, A... calling telephone, B... receiving telephone, C...
…Telephone transfer device, D…Calling telephone, E…Destination telephone, F…Answering machine, H, I, J,
K, L, M, N, P...terminals.

Claims (1)

[Claims] 1 A called side separating section 18 connected to the called side telephone line 12, a calling side separating section 17 connected to the calling side telephone line 11, and a calling side separating section 17 connected to the calling side telephone line 11, which is provided between the two separating sections 17 and 18, and connects the calling telephone line A to the called side telephone line. 12, a transfer section 44 calls the transfer destination telephone E via the calling side telephone line 11 and connects the telephone E to enable mutual communication; and a handset 6 provided between the separation sections 17 and 18. and the receiving side telephone line 12
is connected to a telephone answering machine 39 that automatically answers calls and stores messages from callers;
An automatic call receiving circuit 43 that automatically closes the calling telephone line 11 when a call is made to the calling telephone line 11; and a signal selection device that identifies an operation signal input through the calling telephone line 11. 38, the transfer unit 44 and the telephone answering machine 3
9 is a telephone transfer device connected to a control section 41 that operates one of the transfer section 44 and the telephone answering machine 39 and stops the other in response to a signal inputted by the signal sorting device 38;