JP2528345B2 - Multifunction telephone device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [B] Technical Field The present invention relates to a multifunction telephone.

[B] Conventional technology In addition to being able to pick up a handset and perform off-hook dialing, the current multi-function telephone sets the handset and pushes the off-hook button (usually the monitor button) before dialing the other party. Although it has an on-hook dialing function for starting a call, both are functions for sending a tone to a telephone line. However, other devices in the telephone could not be controlled without sending the above tone to the telephone line.

Also, it was not possible to manually control the device inside the telephone by using the same signal as the DTMF key used when remotely controlling the device inside the telephone.

[C] The object of the present invention: In addition to the off-hook dial and on-hook dial functions of the conventional DTMF-based multi-function telephone, the present invention is capable of controlling the device inside the telephone by using the same key buttons from both outside and at home. Is to have.

[D] Embodiment of the Invention The structure and operation of the embodiment of the present invention will be described below.

FIG. 1 shows a main part of a conventional multifunction telephone.

In the figure, 1 is a dial key (numeric keypad), 2 is a dialer part, and when the dial key is pressed by a changeover switch (not shown), the corresponding dial pulse or DT
Output MF tone to lines L1 and L2.

Further, 3 is a speech network, which enables a telephone call via the handset 4. In addition, a changeover switch (not shown) allows hands-free communication.

Reference numeral 5 is a ringer section, which amplifies the tone ringer through the piezoelectric element speaker 6 into which the call signal comes in.

 HS1 and HS2 are hook switches.

As described above, in FIG. 1, only the main part of the multifunctional telephone is shown, but the DTMF tone generated by pressing the dial key is for calling the called party, and the telephone is built-in. It does not control the equipment in use.

On the other hand, in FIG. 2 of the present application, various operations can be performed on the device built in the telephone by operating the keys of the dial keys, and the remote control of the device is performed using the telephone (pushphone) at the destination. Even in the case, it can be executed by the same operation method as when the operation is performed at home.

In FIG. 2, reference numeral 20 denotes a telephone, and only a main part relating to the present invention is shown. That is, HS3 and HS4 are hook switches added to the commercially available telephones,
The hook switches HS1 to HS4 can be switched to an on-hook state or an off-hook state by an off-hook button (monitor button) and a handset (not shown). 21 is the dial key of the above telephone, 22
Is the DTMF oscillation circuit of the above telephone, 24 is the above DTMF oscillation circuit 22
Or an amplifier circuit for a caller to amplify DTMF tones from an external touch-tone telephone, 25 is a tone decoder that decodes the DTMF tones, and DT
While the "1" tone is being input as the MF tone, the H level is output from the output terminal (1). Similarly, the output terminals (2) and (3) output the H level while the tones of "2" and "3" are input.

The outputs of (1), (2), and (3) above are OR gates G-
It is designed to interrupt the 1-chip microcomputer CPU via 4. At the same time, the above outputs are buffers G-1, G-
It is applied to the input terminals DB0, DB1 and DB2 of the CPU via 2 and G-3 to identify the code at the time of interruption.

The CPU is a one-chip microcomputer (microprocessor)
And DB0 to DB2 are input terminals, P10 to P17 and P20 to P27.
Is the output terminal (output port), ▲ ▼ is the interrupt terminal,
TEST1 is an input terminal connected to the counter built into the CPU.

Further, G-6 to G-12 are drivers, FWD.SD1 and RW.SD1 are solenoids for normal feeding and rewinding of a response medium (not shown), and M1 is a motor.

Further, FWD.SD2, RW.SD2 and M2 are similarly solenoids and motors for a recording medium for reception (not shown).

Y-1 is a relay for closing the telephone line. Reference numeral 26 is a ringing circuit for detecting a ringing signal, and 27 and 28 are start point detection circuits for the response tape and the reception tape. The outputs of the above circuits are input to the TEST1 terminal of the CPU through the OR gate G-5. It

Also, 29 is a recording of the response tape and the reception tape,
This is a playback switching circuit and is composed of analog switches and relays. When the input terminal 1 / H level is H level, the response tape head (RPH-1, EH-1) is, and when L level, the receiving tape head (RPH). -2, EH-2) is selected.

When the P / terminal is at the H level, it is switched to the reproducing state, and when it is at the L level, it is switched to the recording state.

In addition, SW1 uses DTMF from the touch-tone
SW2 is a changeover switch for tone control or voice recognition control.While controlling the device inside the telephone while at home, SW2 is a switch for whether or not a PIN code is added as in the case of a remote place ( Hereinafter referred to as a code number switch).

Although the present embodiment is described as using a tape as a recording medium, the present invention is not limited to a tape and can be used in a solid recording / reproducing circuit using a RAM (random access memory). In this case, the parts requiring electric power such as the solenoid and the motor described above are not required, and the power saving control is possible.

 Next, detailed operation will be described.

As one embodiment of the present application, an answering machine is shown in the telephone as shown in FIG. This basic circuit is disclosed in Japanese Patent Application Laid-Open No. 60-230754 by the present applicant, and in these prior applications, the inputs of the buffers G-1, G-2 and G-3 shown in FIG. 3 of the present application are input. The operation buttons (t-1), (AUTO), and (t-2) are connected to the side, and when the operation button (t-1) is pressed once, the response tape is fed normally and within a certain time. When continuously pressed twice, the response tape is rewound, and when continuously pressed three times within a fixed time, the response tape is fast-forwarded. In order to control the receiving tape, the operation key (t-2) is pressed, but normal feeding, winding and fast-forwarding are the same as in the case of the response tape described above.

In order to drive the response tape or the reception tape in the recording state, the operation key (t-1) or (t-2) is pressed within a fixed time, for example, 1.5 seconds after the operation button (AUTO) is pressed once. ) Is pressed once.

In order to put the automatic response recording in the standby state, if the operation button (AUTO) is pressed once as described above and left as it is, the standby state waits for an incoming call after 1.5 seconds described above.

If the operation button (AUTO) is pressed once and then the operation button (t-1) or (t-2) is continuously pressed twice or three times within the above-mentioned predetermined time, the corresponding tape is rewound. Erase in status or fast-forward status.

Further, in order to cancel the above operation, the corresponding operation button is pressed once.

In the prior application, the above-mentioned various operations are performed by three operation buttons (t-
1), (AUTO), and (t-2).

On the other hand, in the present application, the dedicated operation button (t
It is assumed that -1), (AUTO), and (t-2) are omitted, and that they are also used as dial keys for dialing the telephone.

In the present embodiment, the operation button corresponding to the above (t-1) is the "1" key of the dial key 21 shown in FIG.
(AUTO) corresponds to the "2" key, and (t-2) corresponds to the "3" key.

First, the manual operation while at home will be described. The manual operation is described in detail in the above-mentioned prior application based on the flowchart, and therefore, the flowchart is omitted here, and the difference from the prior application will be described in detail.

First, it is assumed that the response tape (not shown) and the reception tape (not shown) are stopped when the power of the apparatus is turned on. It is also assumed that the handset (not shown) of the telephone 20 is on-hook.

Here, for example, in order to normally feed the response tape, the digital switch 35 is set before the operation, if the password switch SW2 is ON.
Input a digit code number, for example, "123", by operating the dial key 21.

This security code is the same as the security code for remote operation described later, and is known only to the owner of this device.If the security code switch SW2 is on, a third party can borrow this telephone. Even if an erroneous operation is performed when making a call by using the telephone, it is possible to prevent erroneous operation or wiretapping of the answering machine in the telephone.

In order to normally feed the response tape from the stopped state of the apparatus as described above, the personal identification number is transmitted as described above, and then the "1" key of the dial key 21 is pressed once. By pressing this key, the universal DTMF oscillator circuit will generate 697Hz and 120
Two frequencies of 9 Hz are output, and after being set to an appropriate level by the resistor R21, they are amplified by the amplifier circuit 24 and the output is applied to the tone decoder 25. The tone decoder unit 25 is composed of a tone decoder IC, a gate IC, and a three-state buffer for preventing the outputs from the voice recognition unit 33, which will be described later, from being confused with each other. When sliding to, the output of the tone decoder section is activated. Therefore, while the DTMF tone of "1" is being applied to the tone decoder section, the output terminal (1) of the tone decoder section 25
To output an H level signal, and interrupt the CPU via the OR gate G-4. At the same time, the output pulls the input terminal DB0 to the H level via the buffer G-1.

A program not shown here chucks how many times the input terminal DB0 becomes H level within a fixed time, for example, within 1 second (described later). If the above input terminal DB0 is 1
When the H level is reached, the output ports P20 and P22 are set to the H level, the solenoid FWD.SD1 and the motor M1 are energized, and the response tape is fed normally.

When the input terminal DB0 becomes H level twice within the predetermined time, rewind the response tape three times or three times.
When the H level is reached more than once, fast forward is performed.

On the other hand, when the "3" key of the dial key 21 is pressed, the DTMF oscillation circuit 22 outputs two frequencies of 697 Hz and 1477 Hz, the amplification circuit 24 amplifies the same, and the output terminal (3 ) To H level. Therefore, this output pulls up the input terminal DB2 of the CPU to the H level via the buffer G-3, which is the same as the case of the input terminal DB0 described above.
It is checked how many times the H level has been reached within a certain period of time, whereby the receiving tape is controlled to be normally fed, rewound, and fast forward.

The fixed time of 1 second is initialized every time the key of the dial key 21 is pressed, and a new value of 1 second is set to facilitate the operation. This is also applied when operating the remote controller described later.

On the other hand, when the "2" key of the dial key 21 is pressed, the DTMF oscillation circuit 22 outputs two frequencies of 697 Hz and 1336 Hz, and the output terminal (2) of the tone decoder unit 25 via the amplification circuit 24. To H level. Therefore, buffer G-2
When the input terminal DB1 of the CPU goes to the H level via, the light emitting diode 32 (AUTO) blinks for 1.5 seconds by a program. Or, output intermittent sound from the output port P27 and output it to the speaker via the analog switch G-14 and the amplifier circuits 30 and 31.
The above intermittent sound is amplified by SP.

Now, if the "1" key of the dial key 21 is pressed once while the light emitting diode is blinking as described above, the response tape recording state will be entered as with the previous application, and the "3" key will be pressed once. Press to enter the recording state of the receiving tape. Further, like the previous application, by pressing the "1" and "3" keys a predetermined number of times, the corresponding tape can be rewound and erased and fast-forward erased.

It should be noted that if an incoming call happens by accident during the recording of the response message described above, the ringer 5 in FIG. 1 operates and the tone ringer is expanded by the piezoelectric element speaker 6. However, if the volume VR is squeezed out, interference during recording will occur. do not become.

On the other hand, even if the light emitting diode 32 (AUTO) blinks as described above, if it is left as it is, the standby state of the automatic response recording mode is obtained as in the previous application. At this time, the light emitting diode 32 is continuously lit to notify that the standby state has been switched. At the same time, the response tape is rewound for cueing, and when cueing is completed, the light emitting diode 33 (READ
Y) lights up.

After entering the standby state as described above, or after a predetermined time, for example, 30 seconds has elapsed since the response tape and the reception tape were stopped, the above-mentioned input of the personal identification code is canceled and the next operation is performed. Will enter the PIN code again using the dial keys 21.

Next, the operation in the automatic response recording mode will be described.

First, when there is an incoming call in the standby state, the ringing signal is detected by the ringing circuit 26, and the CP is sent via the oragade G-5.
Input to U input terminal TEST1. TEST1 is connected to the counter in the CPU and counts the number of AC waveforms of the ringing signal. When it is regarded as the ringing signal, the output port P26 is set to H level to keep the relay Y-1 on and its contact point.
Close the telephone line via y1-1.

Therefore, the ringing signal stops and the call state is set. At the same time, the output ports P20 and P22 are set to the H level, the solenoid FWD.SD1 and the motor M1 are energized, and the response tape (not shown) is driven by normal feeding.

The response message is reproduced by the recording / reproducing head RPH-1, and reaches the line transformer LT via the switching circuit 29, the preamplifier 30, and the analog switch G-13 (turned on by a program).
Sent to caller.

When the sending of the response message ends, the DTMF tone of "1" is recorded for a short time at the end part of the response message (since the key of "1" is pressed when canceling the recording). Is a line transformer LT, resistor R22,
When detected by the CPU via the amplifier circuit 24 and the tone decoder 25, the response tape is stopped running and the receiving tape (not shown) is driven in the recording state.

Therefore, the caller's message is LineTrans LT,
The recording / reproducing head RPH-2 is reached via the analog switch G-14 (turned on by program), the preamplifier 30, and the switching circuit 29 (switched to recording mode by program).
Recorded on the receiving tape.

When the caller finishes the business and goes on-hook with the telephone, the line voltage fluctuates at that time and the ringing circuit 26,
When detected by the CPU via the OR gate G-5, the relay Y-
Turn off with 1 to release the telephone line. At the same time, the running of the receiving tape is stopped, and then the response tape is rewound in order to find the beginning, and the standby state is restored.

Next, the remote control operation by the owner of the destination will be described. Therefore, this device is called by using a touch-tone phone when going out.

After the response message is being sent or the receiving tape has been switched to the recording state, the three-digit personal identification code set by the digital switch 32 is sent by the key operation of the push phone.

If the secret codes do not match, the device is restored, but if they match, the response tape or the receiving tape that is running stops and waits for the incoming remote control signal for the next operation.

Subsequent remote control operations are the same as the above-mentioned manual operation while at home, and the key arrangement is also the same. That is, in order to hear the message recorded on the receiving tape,
First, it is necessary to rewind the receiving tape by pressing the "3" key on the touch-tone phone twice in succession. By this pressing, the receiving tape is rewound to the physical starting point or the starting point of the unheard message. When it is rewound to the starting point, the receiving tape stops. If you want to release it during the rewinding of the receiving tape, press the "3" key on the touch-tone phone once.

To play the receiving tape, press the "3" key on the touch-tone once after the receiving tape has stopped as described above.

To cancel the playback of this receiving tape, press the "3" key once. Or the position of the end of the message
It may be stored in the memory in the CPU and automatically stopped at this point.

To switch to recording, use the touch-tone “2”
Press the key once. In the case of the manual operation described above, the light emitting diode 32 blinked.
An intermittent sound is output for 1.5 seconds from the output port P27 of. Pressing the "1" key on the touch-tone phone once while you hear this intermittent sound switches to the recording mode for the response tape, and pressing the "3" key once switches to the recording mode for the receiving tape.

In the recording mode of the response tape, the response message is dubbed, and in the recording mode of the receiving tape, it can be used, for example, when it is desired to keep a record after listening to all the message messages remotely.

As described above, in this embodiment, the above-mentioned JP-A-60-23075 is used.
According to the operation method disclosed in 4, but the present invention is not limited to this, for example, the button "1" of the touch-tone button to play and stop the receiving tape,
"3" button is for backspace of receiving tape, "7" button is for recording / stopping reply message, and "9" button is for playing / stopping reply message. It is also possible to arbitrarily assign a function to a key that can be easily used. Of course, the same key (button) is used for both remote operation and operation at home, which is the purpose of this application.
Needless to say, the same function is assigned to each.

The device controls the devices in the phone with touchtone tones as described above. However, since it is inconvenient for the device in the telephone to malfunction due to the dial operation when calling the called party, a countermeasure is taken in this application. That is, when the handset (not shown) of the telephone 20 is picked up for dial operation in FIG. 2, the hook switches HS3 and HS4 are closed. The output of the DTMF oscillation circuit 22 which oscillates by the key operation of the dial key 21 by this HS3 is introduced to the output circuit 23, amplified by the output circuit 23, and then output to the telephone line.

On the other hand, since the input side of the amplifier circuit 24 is grounded by HS4, the output of the DTMF is not input to the tone decoder unit 25,
Therefore, the device in the telephone, that is, the answering machine in this embodiment does not malfunction.

However, in the above-mentioned example, when the called party is called and the conversation state is recorded, for example, when recording a mutual conversation on the receiving tape, it is not possible to control the receiving tape because the DTMF tones are not input to the tone decoder 25. It is possible.

FIG. 4 is an example of a circuit that solves the above-mentioned problems. The dial operation for calling the other party (called party) from this device does not operate the device in the telephone, and the called party responds and the call state is established. After that, the above device can be controlled by operating the key of the touch-tone telephone of the calling or called party.

In FIG. 4 described above, the circuits and parts added to FIG. 2 are as follows.

That is, 34 is a line polarity reversal detection circuit, which switches the output ▲ ▼ from the H level to the L level when the called party responds by reversing the polarity of the telephone line and becomes in a call state. Is a circuit that returns to the H level when is on-hook. As this circuit, various circuits using an operational amplifier or a photocoupler are known.

Further, TR-1 is a transistor, which is turned on by the output of the line polarity inversion detection circuit 34 in the cases other than the above-mentioned call state.

Therefore, if you pick up the handset (not shown) to call the called party from this device, the hook switches HS3, HS4
, And the transistor TR-1 is turned on by the output of the line polarity inversion detection circuit 34 while the dial is being operated. Therefore, the input side of the amplifier circuit 24 is grounded via the closed hook switch HS4.

Therefore, the DTMF tones generated by the dial operation do not reach the tone decoder unit 25, and the device in the telephone does not malfunction.

On the other hand, in the call state in which the called party responds and the output of the line polarity inversion detection circuit 34 is switched from H level to L level, the transistor TR-1 is turned off and the amplifier circuit 24 is activated, and the calling party is called. Alternatively, the DTMF tones generated by the key operation of the callee's touch-tone phone can
The device in the telephone can be controlled because it reaches.
Even if a call is received due to the same principle as described above, the call is stored, and the operation of either person is performed from the time the called party goes off-hook to the time it is on-hook, that is, during the call state. It is also possible to control the device in the telephone by. In addition, a dedicated recording button is provided instead of the above-mentioned touch-tone key (numeric keypad), and the recording button is operated only in the mutual call state as described above, and when the call state is released. , This call recording can be stopped.

Next, this device has a speed dial unit, and a dial number or a code for controlling the device in the telephone can be stored in the memory in the CPU.

The above-mentioned code is, for example, a secret code at the start of remote control operation. Further, in this embodiment, the response tape or the reception tape is controlled variously by the number of times of pressing the "1" or "3" button, but a special code of, for example, three digits similar to the secret code is assigned to each control. It is also possible to perform various remote control operations or tests with this special code.

It is also possible to assign a special code for playing or recording a specific message in addition to the remote control operation described above. By storing this special code in the speed dial section, the remote control can be performed by one-touch or two-touch of a push-phone (dial key). It can also be used for operation testing or actual operation.

In order to register the above-mentioned personal identification code or special code in the speed dial section, push the buttons on the button section of the dial button section 21 in the order of “× * YYY”. Here, "x" is a number indicating the order of registration with the keys 0 to 9, and a YYY 0 to 9, for example, a three-digit secret code or a special code.

The program is the "*" generated by pressing the above key.
When a DTMF tone is detected, the number entered before that is regarded as the number representing the registration number, and the memory area in the CPU assigned to this number is specified by the address. Then, the three-digit number entered after "*" is stored in the above memory area.

To read the code stored as described above, press the "x #" button. Here, "x" is the above-mentioned registration number.

When the program detects a "x #" DTMF tone, it specifies the memory address from the contents, reads the 3-digit code, and outputs it as a DTMF tone.

Alternatively, if ten buttons are provided on the input port (not shown) of the CPU, the speed dial can be read with one touch.

The present invention can also be effectively used for cordless phones. Conventional cordless phones are installed in locations where the base unit and handset are separated, as shown in Fig. 5a. When a call arrives at the base unit, the bell of the base unit or handset rings, and when the handset is off-hook, the caller and the called party on the handset side can talk through the base unit and the handset is off-hook. Then, the dial operation is performed to call the called party through the master unit.

Therefore, at both the above-mentioned incoming call and outgoing call, the master unit receives the radio wave emitted from the slave unit by the off-hook operation of the slave unit and closes the telephone lines L1 and L2. It is not possible to control only the existing device, for example, the answering machine, from the slave unit in a state independent of the telephone line.

In the present invention, two methods are proposed to solve this. The first is "1", "2", "3" in the on-hook state where the hook switch of the child device shown in Fig. 5a is open.
When the key is pressed, the power switch (not shown) is turned on, and the radio wave modulated by the DTMF tone is emitted to the master unit.

When you press the "1" key here, normally 697Hz and 1209Hz
In the above-mentioned on-hook state, the switching circuit interlocking with the hook switch (not shown) contacts the "A" oscillator circuit (not shown) to output 6 frequencies.
And output 1633Hz two frequencies. This is a key for the "A" key, which is not yet used on Japanese touch-tone phones.
It is the same as that used for frequency.

When the "2" key is pressed, two frequencies for the "B" key are output, and for the "3" key, two frequencies for the "C" key are output (Fig. 5b).

When each output of these "A to C" is decoded by a tone decoder (not shown) in the master unit, the answering machine is controlled as described above without closing the telephone lines L1 and L2.

Of course, if the "1 to 3" keys are pressed in the off-hook state where the hook switch is closed, the corresponding DTMF tones are output (Fig. 5b).

In addition, when the owner uses the touch-tone remote control device to operate the remote control, the DTMF tones of "A to C" are not output, so in this case, the remote control operation can be performed with the DTMF tones of "1 to 3". Is programmed to.

Further, this device has a voice recognition unit as shown in FIG.
"1 to 3" by switching the selector switch SW1 to the right
"Ichi", "Nii", "Sun" instead of DTMF tones
Alternatively, by registering with another name or secret code or speed dial, the response tape and the reception tape can be controlled in the same manner as in the case of DTMF tones.

Next, the second method is a method in which when the cordless phone handset is pressed twice, for example, # is wirelessly emitted between the parent and child, the telephone line is disconnected from the base unit.

Further, in the above-described embodiment of the present application, a call from the outside may come in even while the device in the telephone device is being operated regardless of the telephone line.

In this case, the HS2 is in contact with the ringer circuit when the telephone is on-hook as shown in Fig. 1, so it is ready to accept the ringing signal. If you want to answer the telephone, stop the operation of the answering machine. Then, the handset (not shown) may be hooked off to respond. If you do not want to answer the call, leave it as it is, or switch the answering machine to the automatic answer recording mode, cue the answer tape and the receiving tape, and then answer the incoming call. You can leave it to me. Further, in the case of a cordless phone, even when controlling a device in the master unit from the slave unit, it must be able to receive only an incoming signal.

Further, although the tape is used in this embodiment as described above, in the solid-state recording / reproducing apparatus, operations corresponding to rewinding and fast-forwarding are instantaneously executed.

Therefore, when the key operation using the solid-state recording / reproducing apparatus is continuously performed twice, it is returned by one message and stopped, and when the key operation is continuously performed three times, one message is returned. It is designed to skip and stop.

FIG. 6 shows a concrete circuit using the above-described solid-state recording / reproducing apparatus, 60 is a solid-state recording / reproducing apparatus, 61 control LSI and 62 dynamic random access memory DRA.
It is composed of M and.

The control LSI is commercially available under the name of T6668 from Toshiba, for example. The main terminals are explained in “REC /
"" Is a recording / playback switching terminal, which is a recording mode at H level and a playback mode at L level. "START" is a terminal for starting recording / playback operation, and "STOP" is the above recording,
A terminal for stopping the reproduction operation, phrases 0 to 4 are terminals for phrase selection, and since they are composed of 4 bits, a maximum of 16 phrases can be used. "IN" is an audio input terminal, "OUT" is an audio output terminal, and "EOS" is an output terminal that outputs an H level when the end of each phrase is detected.

To record the response message described above in this solid-state recording / reproducing apparatus, the same operation as in the case of the above-mentioned tape is performed. That is, the "2" key of the dial key 21 in FIG. 2 is pressed and then the "3" key is pressed.

Here the program is output port “P23, P24, P25, P2
Set "6" to "1000" and assign the first phrase for the response message. At the same time, select the recording mode with the output port P20 at H level. At the same time, output port P1
6 is set to H level and analog switch G-15 is turned on to activate the microphone MIC.

Next, in the above-mentioned state, when a start pulse is applied from the output port P21, the response message spoken to the microphone is input to the control LSI 61 via the input terminal IN, and the A / D built in the LSI. The audio digitized by the converter is stored in the DRAM 62.

When the response message is complete, press the "1" key once as in the case of the tape described above. When this pressing is detected by the program, a stop pulse is output from the output port P22 to cancel the above recording operation.

The control LSI 61 stores the start address and stop address of each phrase in the memory built in the LSI when the start pulse or the stop pulse is applied, and the stop address or the DRAM. Is detected, the output terminal EOS (End
of Speech) becomes H level.

Therefore, if you press the "1" key once to confirm the response message recorded as described above,
Set output port P20 to L level and switch to playback mode.
When the start pulse is applied after selecting the first phrase as described above, the response message is reproduced from the beginning and is amplified by the speaker SP via the output terminal OUT, the preamplifier 30, and the main amplifier 31.

When the end of the response message is reached, the above LS
I sets the output terminal EOS to the H level and automatically stops the above-mentioned reproduction operation.

On the other hand, in order to send the reply message in the automatic reply recording mode, the output reproduced as described above is sent to the telephone line through the analog switch G-13. Also, to record the caller's message, output port P2
By selecting the next phrase by 3 to P26 and turning on the analog switch G-14, it is possible to record in the same manner as in the case of the response message described above. That is, the above stop pulse is given when the caller goes on hook.

In order to reproduce the message during remote listening, specify the phrase next to the response message and then give a start pulse in the reproduction mode. When that phrase reaches the end, the output terminal EOS goes to H level. Therefore (when the start pulse returns to L level), when this is detected via the CPU, it is programmed to switch to the next phrase, and automatically reproduces all the message messages. .

Although an answering machine is described as a device in the telephone in the above-mentioned embodiment, the present invention is not limited to this. For example, Japanese Patent Application No. 58-1
It is also possible to carry out the information transmission disclosed in "Information receiving system using push-phone" of 88732 (JP-A-60-80354).

That is, although the following description is not shown, in the on-hook state of the telephone, a simple sentence of numbers or alphabets is made by operating the keys of the dial keys and stored in the memory.

Next, the telephone is off-hook and a dial operation is performed to call the called party. As mentioned above, since the device in the telephone can be controlled when the telephone is in the call state, pressing the dial key or one of the other predetermined keys causes the text stored in the above-mentioned memory to consist of the numbers or alphabetical characters. Automatically send to the called party at speed.

 The present application can also be implemented in the above-mentioned device.

[E] Application and Effect As described above, the present invention makes full use of the functions of the on-hook dial and the off-hook dial of the conventional multi-function telephone, and a solid-state recording / reproducing apparatus having a solid-state recording function to be inserted into a device in the telephone, or It is possible to generate various signals for controlling an answering machine or a recording / playback device that has a mechanical recording / playback device, and the mechanical part becomes minimal or changes to a tapeless solid-state recording device. When controlling various devices in a future multifunctional telephone, the buttons on the surface are equipped with various buttons such as the conventional 12 redials, loud voice, one-touch or speed dial etc. In view of the current situation that must be met, a method to share the operation buttons of the above equipment and minimize the number of buttons as a whole Is obtained by providing a range of applications are wide.

Further, the invention of the present application enables an additional device to be operated by operating the DTMF tone dial key from a remote telephone or a telephone of the multifunction telephone device. Moreover, it is possible to operate the additional device while on-hook, and further, when the telephone is talking to the other party, the control signal can be sent from either the telephone of this telephone device or the telephone of the other party of the other party. To operate the additional device. As a result, the contents of the call can be stored in the storage means of the answering machine. Also, the phone DT
Since the additional device is operated by the dial key for MF tone, this dial signal may activate the additional device when dialing to make a normal telephone call. Since it is equipped with a means to block the input of the DTMF tones to the additional device when in a non-call state, it is put off-hook to make a call, and when dialing, the DTMF tones from the above Since input to the additional device is blocked, malfunction does not occur.

In addition, since it is possible to operate the additional device by the control signal only after entering the code number,
Those who do not know the secret code do not operate the additional device even if they operate the dial keys of the telephone of this multifunctional telephone device, and there is a risk that someone who does not know the secret code will operate the additional device or accidentally use the dial key. The additional device is not operated by touch.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a main part of a conventional multifunction telephone, and FIG.
FIG. 4 is a circuit diagram showing an essential part of the present invention, FIG. 3 is a circuit diagram showing an operating part of an embodiment of the present invention, FIG. 4 is a circuit diagram showing details of another embodiment, FIGS. 5a and 5b. FIG. 6 is an explanatory diagram in the case of a cordless phone, and FIG. 6 is a circuit diagram of a main part using a solid-state recording / reproducing device.

Claims (6)

(57) [Claims] 1. A multi-function telephone device using a dial key for DTMF tones, which includes an additional device including at least an answering machine, the operation of which is controlled by a control signal composed of DTMF tones. Come in via a control signal or telephone line consisting of the above DTMF tones generated
Only when the tone decoder section that decodes the control signal composed of DTMF tones and outputs the output signal according to the type of the input control signal, and the output signal corresponding to the code number is detected from the tone decoder section, and then the above Additional device control means for causing the additional device to perform an operation according to the type of the signal output from the tone decoder part, and line polarity inversion for detecting the inversion of the telephone line polarity that occurs when a telephone call is made and the called party answers. The detection means and the line polarity reversal detection means in the off-hook state do not obtain the polarity reversal detection signal from the line polarity reversal detection signal.
A means for blocking input of DTMF tones to the above-mentioned additional device is provided, and in the on-hook state and the call state, the control signal sent by the telephone at the remote place through the telephone line or the multifunctional telephone device A multifunctional telephone device characterized in that the operation of the additional device can be operated by a control signal generated by a dial key. 2. The multi-function telephone device according to claim 1, wherein the telephone of the multi-function telephone device is composed of a cordless horn. 3. The control signal of the code number is composed of a plurality of digits, and the control signal for operating the operation of the additional device is composed of a number of one digit.
Alternatively, the multi-function telephone device according to claim 2. 4. The multi-function telephone device according to claim 1, wherein the control signal for operating the code number and the operation of the additional device is composed of a plurality of digits. 5. The multi-function telephone device according to claim 4, wherein the control signal composed of a plurality of digits for operating the operation of said additional device is generated from a dial key for speed dial. 6. A voice recognition means for recognizing a signal input by voice as a control signal for operating the code number and the operation of the addition device, and outputting a signal corresponding to the voice input number, and the addition device. The switching means for switching the signal input to the control means from the output signal from the tone decoder section to the output signal of the voice recognition means, claim 1, claim 2, claim 3, claim 4 or claim 5. Multi-function telephone device.