JP2546479B2 - Facsimile machine with absence recording function - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine with an answering machine recording function capable of switching between a recording operation for recording a voice message from a calling side and a facsimile operation for transmitting / receiving image data to / from the calling side. It is about.

[0002]

2. Description of the Related Art In a facsimile machine with an absence recording function of this kind, when a call is received in the absence / FAX mode,
After transmitting the response message, the operation of the recording device is started. Even when the recording operation is started, when a facsimile signal such as a CNG signal transmitted from the calling side is detected, the connection with the telephone line is switched from the recording device side to the facsimile device main body side to perform facsimile communication. It is like this. In the conventional device, if the facsimile operation is started after the recording operation is started, the recorded content is erased in any case.

[0003]

Therefore, in the above-mentioned conventional facsimile apparatus, the recorded contents are erased even when the facsimile communication is performed after the voice message from the calling side is transmitted. Therefore, in such a case, there is a problem that it is inconvenient because the voice message from the calling side cannot be known.

Further, conventionally, it has also been proposed that when the facsimile operation is started after the recording operation is started, the recorded content is left without being erased. However, in the case of such a configuration, when facsimile communication is performed from the calling side without a voice message, C of 1100 Hz is generated.
There is a problem that only the NG signal is recorded or a silent state is recorded, which is uncomfortable during reproduction and the memory capacity of the recording device is wasted.

Further, in the conventional apparatus, when the calling side goes on-hook after the start of the recording operation, regardless of whether or not there is a voice message from the calling side, the recorded contents are left without being erased. There is. For this reason, when the caller goes on-hook without a voice message, only a momentary interruption sound such as “Gacha” is recorded after the silent state. In addition, there is a problem that the memory capacity of the recording device is wasted.

That is, the conventional device does not have a means for judging whether or not there is a voice message from the calling side, which causes various problems as described above.

The present invention has been made by paying attention to the problems existing in such a conventional technique, and an object thereof is to provide a voice message from a calling side when a recording operation is performed. It is an object of the present invention to provide a facsimile apparatus with an absence recording function that can leave recorded contents when there is a voice message and can erase recorded contents when there is no voice message.

[0008]

In order to achieve the above object, the present invention is capable of switching between a recording operation of a voice message from a calling side and a transmitting / receiving operation of image data, and an erasing means for erasing the recorded content. In the device provided with, a voice measuring means for measuring the time of the voice inputted during the recording operation is provided, and the erasing means is arranged to operate when the length of the measured voice is less than a predetermined time. It is configured to erase the recorded contents.

[0009]

[Operation] In the facsimile apparatus with an answering machine recording function configured as described above, when a call is received, a recording operation is started after a response message is transmitted. And
During this recording operation, the time of the voice input to the device is measured by the voice measuring means. Also, after this recording operation is started, for example, CNG transmitted from the calling side.
When a facsimile signal such as a signal is detected, the recording operation is stopped and the image data transmitting / receiving operation is started. Also, after the recording operation is started, the recording operation is stopped when the caller is on-hook.

Then, when the recording operation is stopped in this way and the length of the measured voice time is less than a predetermined time, it is considered that there is no voice message from the calling side. Then, the recorded contents are erased by the erasing means. If the measured time length of the voice exceeds the predetermined time, it is considered that there is a voice message from the calling side, and the recorded content is left as it is.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a facsimile machine with an absence recording function embodying the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, the facsimile apparatus 1 has a facsimile apparatus main body 2, an attached telephone 4 provided with a recording device 3, and an NCU (network control unit) 6. Facsimile device body 2
Transmits and receives image data to and from the other side, that is, performs a facsimile operation. The recording device 3 records a voice message from the calling side. The NCU 6 controls the connection with the telephone line 5.

Now, the facsimile apparatus body 2 will be described. A CPU (Central Processing Unit) 7 has a ROM (Read Only Memory) 8 storing programs for controlling the operation of the entire facsimile apparatus main body 2 and the operation of the NCU 6, and a RAM for temporarily storing various information.
(Random access memory) 9 is connected. The modem 10 modulates and demodulates transmitted / received data, and at the same time, a push tone signal (DTM) corresponding to the telephone number of the other party.
F), digital command signal (DCS), digital identification signal (DIS), etc. are generated and detected.

In the modem 10, the tone generation circuit 1 is also provided.
1 and a tone detection circuit 12 are provided, and the tone generation circuit 11 generates a CNG signal of 1100 Hz and a called station identification signal (CED) of 2100 Hz. The tone detection circuit 12 is composed of a bandpass filter, a zero-cross detection circuit, and a level detection circuit (not shown), and detects a CNG signal, a CED signal, or the like from the other party. When the tone detection circuit 12 detects various tone signals transmitted from the other side, it outputs the frequency and level of the signals to the CPU 7 as digital data. Then, the CPU 7 executes CNG based on the input data.
Signals, CED signals, silence, etc. are determined.

Further, the CPU 7 has a reading section 13 for reading an image on a document, a recording section 14 for printing on a recording sheet based on received image data and the like, and a timer 1.
5 and a display unit 16 for displaying various information are connected. Further, the CPU 7 generates a buzzer sound to notify the operator of an incoming call from the calling side, a voice counter 18 (described later) as a voice measuring unit, and a facsimile operation start. An operation key (not shown) such as a start key is connected.

Next, the attached telephone 4 will be described. The attached telephone 4 is provided with a dial CPU 21 for controlling the operation of the entire telephone 4 excluding the recording device 3. A dial key 22 for inputting a telephone number or the like is connected to the dial CPU 21.
A handset 23 is connected to the attached telephone 4.

The recording device 3 is provided with a CPU 24 for controlling the operation of the entire recording device 3, and the attached telephone 4
The CPU 24 controls the operation related to the absence recording. The CPU 24 is connected to the dial CPU 21 via a photo coupler 25, and is also connected to the CPU 7 of the facsimile apparatus main body 2 via a bus (serial bus) 26 for performing serial communication. Serial communication is performed between the CPU 24 of the recording device 3, the dial CPU 21 of the attached telephone 4, and the CPU 7 of the facsimile apparatus main body 2.

DSP (Digital Signal Processor)
27 is for digitally processing the audio signal,
The CP via the address bus 28 and the data bus 29
It is connected to U24. The DSP 27 includes a RAM 30 for storing audio data in an encoded state, and an encoding / decoding circuit 31 for encoding and decoding the audio data.
have.

In addition, the CPU 24 of the recording apparatus 3 has an answering key 32 for setting and canceling an answering machine / FAX mode (described later), and a reproducing key (for reproducing the voice data stored in the RAM 30). Various operation keys such as (not shown) are connected.

Next, the NCU 6 will be described. C
The ML relay 36 is provided to selectively connect the telephone line 5 to the modem 10 side and the telephones 4 and 37 side of the facsimile apparatus main body 2. As this telephone, in addition to the auxiliary telephone 4 provided integrally with the facsimile apparatus 1, a slave telephone 37 that can be connected to the facsimile apparatus 1 via a cable (not shown) is provided. When the CML relay 36 is switched to the a contact side by the control of the CPU 7 of the facsimile apparatus main body 2, the telephone line 5 is connected to the telephones 4 and 37 side. On the other hand, when the CML relay 36 is switched to the b contact side, the telephone line 5 is connected to the modem 10 side via the transformer 38.

The incoming call detection circuit 39 has a photocoupler, the LED 39a is connected to the a contact side of the CML relay 36, and the phototransistor 39b is connected to the CPU 7 of the facsimile apparatus main body 2. And the CPU 7
The on / off state of the phototransistor 39b is monitored to detect the presence or absence of a call signal of 16 Hz on the telephone line 5. The first and second off-hook detection circuits 40 and 41 are connected to the auxiliary telephone 4 and the sub-telephone 37, and the off-hook state of each of the telephones 4 and 37 (the state where the handset is picked up, and in the case of the auxiliary telephone 4, the recording device 3). (Including the operating state of), and the detection result is the C of the facsimile apparatus main body 2.
Output to PU7. The detection result from the first off-hook detection circuit 40 on the accessory telephone 4 side is also output to the dial CPU 21 of the accessory telephone 4.

The DC voltage generating circuit 42 is used for the telephones 4, 37.
This is to supply a predetermined current to the telephones 4 and 37 in order to detect the off-hook of
24V is applied. That is, when the telephones 4 and 37 are off-hooked, the change in the current supplied to the telephones 4 and 37 is detected by the off-hook detection circuits 40 and 41. Then, based on the detection of the current change by the off-hook detection circuits 40 and 41, the facsimile apparatus main body 2
CPU 7 and dial CPU 21 of the attached telephone 4 are
Recognize the off-hook condition.

Further, for example, in the recording operation of the recording device 3, when the other party is on-hook and the line is disconnected, the polarity of the current flowing through the telephone line 5 is reversed, but at the moment of reversing the polarity, the telephone line is reversed. The current on 5 is cut off. Then, the disconnection of the current on the telephone line 5 at the moment of the polarity reversal (hereinafter, referred to as instantaneous interruption) is detected by the first off-hook detection circuit 40, and the CPU 7 of the facsimile apparatus main body 2
Based on the detection of the momentary interruption, it is recognized that the other party is on-hook.

Further, the DC voltage generating circuit 42 sends the telephone lines 5 to the telephones 4 and 37 via the TEL relay 43.
And is switchably connected. Then, under the control of the CPU 7 of the facsimile apparatus main body 2, when the TEL relay 43 is connected to the a contact side, the telephones 4 and 37 are connected to the telephone line 5 side. On the other hand, when the TEL relay 43 is connected to the b contact side, the telephones 4 and 37 are connected to the DC voltage generating circuit 42 side. The transformer 44 is connected to the telephones 4 and 37, and the output side thereof is connected to the modem 10.

As described above, this facsimile machine 1
Then, the answering machine 32 is operated to set and cancel the absence / fax mode. When the absence / fax mode is canceled, the operation mode of the apparatus is telephone / fax.
The mode is set. In any operation mode, the CML relay 36 and the TEL relay 43 are switched to the a-contact side in the communication standby state of the device.

That is, when a call signal of 16 Hz is transmitted from the telephone exchange when the answering machine / FAX mode is set, the CPU 7 of the facsimile apparatus main body 2 detects the call signal via the incoming call detection circuit 39. And C
The PU 7 sends the calling signal a predetermined number of times (2 in this embodiment).
(Time), the CPU 24 of the recording device 3 sends an incoming call command signal to the CPU 24 to instruct the incoming call. Then, the CPU 24 of the recording device 3 closes the line and then the DS
The P27 is operated to read the data of the voice response message which is pre-recorded and stored in the RAM 30. Then, the DSP 27 decodes the data of the voice response message by the encoding / decoding circuit 31, and outputs N
It is sent to the telephone line 5 via the CU 6.

After that, when the reading of the voice response message is completed, the CPU 24 of the recording device 3 starts the recording operation of the DSP 27 and at the same time sends a recording start signal to the CPU 7 of the facsimile main body 2 to start recording to the CPU 7. Let me know. Then, when the voice message is transmitted from the transmitting side, the DSP 27 encodes the data of the voice message by the encoding / decoding circuit 31, and the R
Store in AM30.

In this embodiment, the maximum recordable time of the RAM 30 is 20 minutes, and the maximum recordable time for one recording operation is set to 5 minutes. Then, the data of the voice message from the calling side is R for each recording operation.
It is sequentially accumulated in the AM 30. Therefore, the shorter the recording time in one recording operation, the more times the voice message from the calling side can be recorded.

Further, the CPU 7 of the facsimile apparatus main body 2
When a recording start signal is input from the CPU 24 of the recording device 3, the voice counter 18 is operated to measure the time of various voices input to the device via the telephone line 5. The voice includes not only a voice message from the calling side but also all sounds such as a sound of a CNG signal and a momentary interruption sound such as "Gacha" generated at the momentary interruption.

Here, the method of measuring the above-mentioned voice time will be described in detail. As shown in FIG. 3, during the recording operation, the CPU 7 of the facsimile apparatus main body 2 activates the voice counter 18 when it detects voice through the tone detection circuit 12 in each of the sections divided every one second. To count. For example, as shown in the figure, when there is no voice in each section divided every one second, the voice counter 18 does not count, and if there is any voice in each section, the voice counter 18
Then the counting is done. Therefore, in the case where one continuous voice exists over a plurality of sections, the voice counter 18 outputs 1 for each section where the voice exists.
Counting is done one by one.

As described above, the voice counter 18 counts the number of sections in which voice exists, and does not actually measure the time of voice, but here, the count value of the voice counter 18 is used as the voice. Regards it as time.

Further, as shown in FIG. 2, after the start of the recording operation, the C from the calling side is transmitted through the tone detection circuit 12.
If the NG signal is detected twice or the silent state is continuously detected for 8 seconds within 70 seconds after the start of the recording operation,
The CPU 7 of the main body 2 of the facsimile machine is the CML relay 3
6 is switched from the a-contact side to the b-contact side. That is, the CPU 7 of the facsimile apparatus main body 2 determines that the calling side is the facsimile apparatus, switches the connection with the telephone line 5 from the telephone 4, 37 side to the modem 10 side, and performs the facsimile operation according to a predetermined facsimile procedure. To start.
Furthermore, after the start of the recording operation, if a momentary interruption is detected via the first off-hook detection circuit 40, the CPU 7 of the facsimile apparatus main body 2 judges that the caller is on-hook and disconnects the line.

Further, in this embodiment, the CPU 7, ROM 8, RAM 9 of the facsimile apparatus main body 2 and C of the recording apparatus 3 are provided.
PU24, DSP27, and RAM30 in DSP27
The erasing means is constituted by.

That is, the CPU 7 of the facsimile apparatus main body 2
When a recording start signal is input from the CPU 24 of the recording device 3, the timer 15 operates the timer 15 to measure 7.5 seconds. Then, the CPU 7 of the facsimile apparatus main body 2
During measurement of 7.5 seconds by the timer 15, that is, DSP2
When the CNG signal is detected twice within 7.5 seconds from the start of the recording operation of 7, the recording end / erase command signal (hereinafter referred to as an erase command signal) is sent to the CPU 24 of the recording device 3.

Further, the CPU 7 of the facsimile apparatus main body 2
If the time when the CNG signal is detected twice has passed 7.5 seconds, the audio counter 1 is activated during the recording operation.
Based on the count value measured by 8, the DSP 27
It is determined whether or not to erase the recorded contents in the RAM 30. That is, the CPU 7 sends an erase command signal to the CPU 24 of the recording device 3 when the count value of the audio counter 18 is less than or equal to a predetermined value (5 in this embodiment), and when the count value is 6 or more, A recording end command signal is sent to the CPU 24 of the recording device 3.

Further, the CPU 7 of the facsimile apparatus main body 2
When the silent state for 8 seconds is detected and the count value of the audio counter 18 is equal to or less than a predetermined value (2 in this embodiment), the erase command signal is sent to the CPU 24 of the recording device 3 to count. When the value is 3 or more, a recording end command signal is sent to the CPU 24 of the recording device 3.

Further, the CPU 7 of the facsimile apparatus main body 2
Is the voice counter 1 when the instantaneous interruption is detected.
When the count value of 8 is less than a predetermined value (2 in this embodiment), an erasing command signal is sent to the CPU 24 of the recording device 3, and when the count value is 3 or more, the CP of the recording device 3 is set.
A recording end command signal is sent to U24.

When the erasing command signal is input, the CPU 24 of the recording device 3 stops the recording operation of the DSP 27 and erases the recording data stored in the RAM 30 by this recording operation. Also, the CPU 24
When the recording end command signal is input, the DSP 27 stops the recording operation, and the recording operation causes the RAM 30 to operate.
The recorded data stored inside is retained as it is.

Although not described in detail, absence / fax
The case where the mode is canceled and the telephone / FAX mode is set will be described. When the CPU 7 of the facsimile apparatus main body 2 detects the ringing signal from the telephone exchange twice through the incoming call detection circuit 39, it switches the CML relay 36 to the contact b side to send a pseudo ringback tone to the sending side and to send the call. The detection of the CNG signal from the side is started. Then, when the CNG signal is detected and it is determined that the transmitting side is the facsimile apparatus, the operation proceeds to a facsimile operation according to a predetermined facsimile procedure.

If the CNG signal is not yet detected at the time when the pseudo ringback tone is transmitted a predetermined number of times, the calling side may be the telephone, so the CPU 7
Activates the buzzer 17 to generate a buzzer sound. Then, when the auxiliary telephone 4 or the slave telephone 37 is off-hooked based on the buzzer sound, the CML relay 36 is switched to the a contact side, and when the calling side is a telephone, a call is possible. Even if the caller is off-hook when the caller is a facsimile machine, the caller CNG
When a facsimile signal such as a signal is sent out, the facsimile operation is started.

Next, the operation of the facsimile apparatus with the absence recording function constructed as described above will be described with reference to the timing chart of FIG. 2 and the flow charts of FIGS. The programs of FIGS. 4 to 6 and the program of FIG. 7 are mutually related and proceed in parallel.

At the time of reception of this facsimile machine with the absence recording function, the facsimile machine main body 2
Under the control of the CPU 7, the operations shown in the flowcharts of FIGS. 4 to 6 are performed. In addition, the operation mode of the device is set to the absence / FAX mode. In this state,
As shown in FIG. 1, the CML relay 36 and the TEL relay 43 are switched and arranged on the a contact side.

As shown in FIG. 4, when a call signal of 16 Hz is transmitted from the telephone exchange through the telephone line 5 and the call signal is detected twice by the incoming call detection circuit 39, the recording device 3 The serial bus 2 to the CPU 24 of
An incoming call command signal is sent via 6 and an incoming call is instructed (steps S1 and S2).

After that, the transmission of the voice response message by the recording device 3 is completed, and it is waited for the recording start signal indicating the start of the recording operation is input from the CPU 24 of the recording device 3 (step S3). Although not shown in the flowchart, if the auxiliary telephone 4 or the sub telephone 37 is off-hook before the recording start signal is input from the CPU 24 of the recording device 3, the operation of the recording device 3 is stopped. ,
Talking is possible.

In step S3, when the recording start signal indicating the start of the recording operation is input from the CPU 24 of the recording device 3, the timer 15 is activated and the measurement of 7.5 seconds is started (step S4). ). At the same time, the voice counter 18 is activated to start measuring the time of voice (step S5). Then, from the time when the timer 15 and the voice counter 18 are activated until the time when the first off-hook detection circuit 40 detects the on-hook of the recording device 3, the following determination operation shown in FIGS. Is done. That is, while the recording device 3 is recording, whether or not the CNG signal is detected twice, whether or not there is a continuous silent state for 8 seconds, whether or not there is a momentary interruption, the off-hook of the handset 23 of the slave telephone 37 and the auxiliary telephone 4. Whether or not there is a stop key (described later) is operated, and whether or not an on-hook of the recording device 3 is detected is performed (step S).
6-S12).

The above-mentioned determination operation will be described below in order.
As shown in FIG. 5, first, it is determined whether or not the CNG signal is detected twice, and when the CNG signal is detected twice, it is determined whether or not the timer 15 is within 7.5 seconds ( Steps S6 and S13). If the result of this judgment is yes,
That is, when the CNG signal is detected twice within 7.5 seconds from the input of the recording start signal, it is considered that there is no voice message from the calling side, and the CPU 24 of the recording device 3
An erase command signal is sent to (step S14). or,
CNG after 7.5 seconds have elapsed from the input of the recording start signal
When the signal is detected twice, it is determined whether the count value of the voice counter 18 is 6 or more (step S1).
5).

When the count value of the voice counter 18 is 6 or more, it is considered that there is a voice message from the calling side, and a recording end command signal is sent to the CPU 24 of the recording device 3 (step S16). ). On the other hand, if the count value is 5 or less, it is considered that there is no voice message from the calling side, the process proceeds to step S14, and the erase command signal is sent to the CPU 24 of the recording device 3.

At the same time when either one of the erase command signal and the recording end command signal is sent, the CM
The L relay 36 is switched to the b contact side, and the telephone line 5
Is connected to the modem 10 side, and the facsimile operation for receiving the image data from the transmitting side is started according to a predetermined facsimile procedure (step S17).

That is, when the CNG signal from the calling side is detected twice, it is determined that the calling side is a facsimile machine. Then, after the transmission of the CED signal and the DIS signal to the calling side and the exchange of the predetermined facsimile signal such as the reception of the DCS signal from the calling side, the recording unit 14 is operated and transmitted from the calling side. Image data is printed on the recording paper. When the facsimile reception operation is completed,
The line is disconnected, and the machine returns to the communication standby state in the absence / FAX mode.

The CNG signal is regularly transmitted from the transmitting side for 0.5 seconds at intervals of 3 seconds. The above-mentioned detection of the CNG signal twice means that the CNG signal is continuously detected twice at an interval of 3 seconds. That is, the frequency of the CNG signal is 1100 Hz, and the frequency band of human voice is 11
It is a band including a frequency of 00 Hz. Therefore, if the CNG signal is detected only once, is it a human voice signal?
It cannot be reliably determined whether the signal is an NG signal. But,
The CNG signal is regularly sent every 0.5 seconds at intervals of 3 seconds, while the voice signal is randomly sent. Therefore, if a signal of 1100 Hz is detected twice consecutively at an interval of 3 seconds, this signal is definitely a CNG signal, and it can be surely determined that the transmitting side is a facsimile machine. It If the time from the first detection to the second detection of the 1100 Hz signal is outside the range of 2.5 to 6 seconds, this signal is not judged as a CNG signal and the facsimile operation is not started.

When the CNG signal is not detected twice in step S6, it is determined whether or not a continuous silent state for 8 seconds has been detected (step S6).
7). If the result of this determination is yes, it is determined whether or not the silent state detection time is within 70 seconds after the recording start signal is input from the CPU 24 of the recording device 3 (step S18). And if 70 seconds have passed,
A recording end command signal is sent to the CPU 24 of the recording device 3 (step S19), and then the line is disconnected and the standby state is restored. If the silent state detection time is within 70 seconds from the input of the recording start signal, it is determined whether the count value of the voice counter 18 is 3 or more (step S20).

When the count value of the voice counter 18 is 3 or more, it is considered that there is a voice message from the calling side, and a recording end command signal is sent to the CPU 24 of the recording device 3 (step S21). Then, the process proceeds to step S17. If the count value is 2 or less, it is considered that there is no voice message from the calling side, a delete command signal is sent to the CPU 24 of the recording device 3 (step S22), and the process proceeds to step S17. .

That is, the fact that no voice signal or the like is detected for a period of 8 seconds in a silent state means that the sending of the voice message from the calling side has been completed or that there is no voice message. To be judged. When the silent state is detected from the input of the recording start signal, that is, when 70 seconds have elapsed from the start of recording, it is determined that the caller side did not perform the facsimile communication with only the voice message. , A recording end command signal is sent to the CPU 24 of the recording device 3 to disconnect the line. If the silent state is detected within 70 seconds after the recording is started, it is determined that the facsimile communication has been performed after the voice message is transmitted by the caller or without the voice message. When the CNG signal is not detected in step S6, it is determined that the CNG signal has not been detected because the sender side has performed the facsimile communication by manual transmission, and then the facsimile operation is started.

If no silence is detected in step S7, as shown in FIG. 6, it is determined whether the first off-hook detection circuit 40 has detected a momentary interruption (step S8). . Then, when the instantaneous interruption is detected, it is determined whether or not the count value of the voice counter 18 is 3 or more (step S23).

When the count value of the voice counter 18 is 3 or more, it is considered that there is a voice message from the calling side, and a recording end command signal is sent to the CPU 24 of the recording device 3 (step S24). After that, the line is disconnected and it returns to the standby state. If the count value is 2 or less, it is considered that there is no voice message from the calling side, a delete command signal is sent to the CPU 24 of the recording device 3 (step S25), and then the line is disconnected and the standby state is established. Return to.

If no instantaneous interruption is detected in step S8, it is determined whether or not an off-hook detection signal for the slave telephone 37 is input from the second off-hook detection circuit 41 (step S9). When an off-hook detection signal is input, the CP of the recording device 3
A recording end command signal is sent to U24, and the call becomes possible (steps S26 to S27). Further, when the handset 23 of the auxiliary telephone 4 is off-hook, the recording end command signal is not transmitted and the call is ready (steps S10 and S27).

The CPU 7 of the facsimile apparatus main body 2
Recognizes the off-hook state of the attached telephone 4 based on the detection signal from the first off-hook detection circuit 40. However, the first off-hook detection circuit 40 detects not only the state where the handset 23 is actually off-hook, but also the state where the recording device 3 is operated as an off-hook state. Therefore, the CPU of the facsimile apparatus main body 2
7, it cannot be determined whether the detected off-hook state is off-hook of the handset 23 or off-hook due to the operation of the recording device 3.

Here, the on / off hook state of the handset 23 is based on the on / off state of a hook switch provided in a handset holder (not shown).
The PU 21 detects and notifies the CPU 24 of the recording device 3. Then, the CPU 24 of the recording device 3
When the handset 23 is picked up and the fact that the hook switch has been turned off is notified, the recording operation is stopped, and then the call becomes possible.

Therefore, the handset 2 in step S10
The CPU 24 of the recording device 3 actually determines whether or not the facsimile device 3 is off-hook.
This is not performed by the CPU 7 of the
This will be described in 10.

In step S27, if the calling side is a telephone, a call is made between the two parties, and if facsimile communication is to be performed after the call ends, a start key (not shown) is operated to start a facsimile operation. Will be migrated. Further, when the originating side is a facsimile machine, when a facsimile signal such as a CNG signal is sent out, the operation is shifted to a facsimile operation. After the telephone call or facsimile communication is performed, the line is disconnected and the standby state is restored.

If no off-hook is detected in steps S9 and S10, it is determined whether or not a stop key (not shown) has been operated (step S1).
1). The stop key is the C key of the facsimile apparatus main body 2.
It is connected to the PU 7, and is for stopping the facsimile operation and the like. Then, when the stop key is operated, a recording end command signal is sent to the CPU 24 of the recording device 3 (step S28), and then the line is disconnected and the standby state is restored.

In the steps S6 to S11, the first off-hook detection circuit 40 causes the recording device to detect the CNG signal, the silent state, the momentary interruption, the off-hook state of the telephones 37 and 4, and the operation of the stop key. When the on-hook of No. 3 is detected (step S12), the line is disconnected and the standby state is restored. For example, when the maximum recording time of 5 minutes elapses during the recording operation, the recording device 3 is hooked on. When the first off-hook detection circuit 40 detects the on-hook of the recording device 3, step S12 is performed.
If the answer is yes, the line is disconnected and the unit returns to the standby state.

On the other hand, in response to the operation of the facsimile apparatus main body 2, the recording apparatus 3 performs the operation shown in the flowchart of FIG. 7 under the control of the CPU 24. That is, when an incoming command signal is input from the CPU 7 of the facsimile apparatus main body 2 (step S31), the DSP 2
7 is activated to read the data of the voice response message in the RAM 30. Then, the data of the voice response message is decoded by the encoding / decoding circuit 31,
The data is sent to the calling side via the NCU 6 and the telephone line 5 (step S32).

Thereafter, when the transmission of the voice response message is completed, the recording operation of the DSP 27 is started and the recording start signal is sent to the CPU 7 of the facsimile apparatus main body 2 (steps S33 to S35). Then, when the voice message is transmitted from the transmitting side, the data of the voice message is encoded by the encoding / decoding circuit 31 and stored in the RAM 30. In addition, C from the calling side
When an NG signal is transmitted or when a caller makes an on-hook to generate a momentary interruption sound, the CNG signal and the momentary interruption sound are also recorded and stored in the RAM 30.

While the maximum recording time of 5 minutes elapses from the start of the recording operation, the CPU of the facsimile apparatus main body 2
When an erasing command signal is input from 7, the recording operation of the DSP 27 is stopped and RA
The recorded data stored in M30 is erased (steps S36 to S38). Then, after that, it returns to the standby state.

When a recording end command signal is input while the 5 minutes have elapsed, the recording operation of the DSP 27 is stopped, and the recording data stored in the RAM 30 is retained as it is by this recording operation ( Steps S39 to S4
0). Then, after that, it returns to the standby state.

Further, while the above five minutes have passed, the off-hook of the handset 23 of the attached telephone 4 is turned off by the dial CPU 2
If it is detected through 1, the process proceeds to step S40 (step S41). In this case, the call is ready.

When 5 minutes have passed without input of the erase command signal, input of the recording end command signal, or detection of off-hook of the handset 23, the DSP 2
The recording operation of 7 is stopped, and this recording operation causes RAM
The recording data stored in 30 is retained as it is (step S42). Then, it returns to the standby state.

As described above, in the facsimile apparatus with an answering machine recording function of this embodiment, when an incoming call is received when the answering machine / FAX mode is set, the DSP 27 of the recording apparatus 3 is activated and the voice response message in the RAM 30 is sent. , And then the recording operation is started. Also, after the recording operation is started, if the CNG signal from the calling side is detected twice or a silent state is continuously detected for 8 seconds within 70 seconds from the start of recording, it is determined that the calling side is a facsimile machine. Then, the facsimile operation is started. If a momentary interruption is detected after the recording operation is started, it is determined that the caller is on-hook and the line is disconnected.

When the CNG signal is detected within 7.5 seconds from the start of the recording operation, it is considered that the caller side has performed facsimile communication without a voice message, and the recording operation is performed. The recording operation is stopped, and the recording data stored in the RAM 30 is erased by this recording operation. When the CNG signal detection time has passed 7.5 seconds from the start of the recording operation, the recording data in the RAM 30 is recorded based on the count value measured by the audio counter 18 during the recording operation. It is determined whether or not to erase. That is, when the count value of the voice counter 18 is 5 or less, it is considered that the facsimile communication is performed from the calling side without a voice message, the recording operation is stopped, and the recording operation causes the RAM 3 to operate.
The recorded data stored in 0 is deleted. If the count value is 6 or more, it is considered that the facsimile communication is performed after the voice message from the calling side,
The recording operation is stopped, and the recording data stored in the RAM 30 is retained as it is by this recording operation.

That is, the fact that the CNG signal is detected within a short time of 7.5 seconds from the start of the recording operation means that there is no voice message from the calling side. In such a case, the recorded content is deleted, so 1
It is possible to reliably prevent discomfort during playback due to recording of only the 100 Hz CNG signal or recording of the silent state.
It is possible to reliably prevent the storage capacity of the AM 30 from being wasted.

When the CNG signal is detected for a long time of 7.5 seconds or more from the start of the recording operation, and the count value of the voice counter 18 is 5 or less, the voice input to the device is 2 voices. It is considered that there is no voice message from the calling side, only with the CNG signal for the first time. For example, if the originating side is a type of device that transmits a CNG signal by manual operation, if the operation timing of the originator is delayed, 7.5 seconds or more will be required to detect the CNG signal even if there is no voice message from the originating side. This may occur. However, in such a case, the recorded content is erased, so that it is possible to reliably prevent discomfort during playback due to the recording of only the CNG signal or the silent state, as in the case described above. RAM 30 of the recording device 3
It is possible to reliably prevent the storage capacity of the memory from being wasted.

Further, when the CNG signal is detected for a long time of 7.5 seconds or more from the start of the recording operation, and the count value of the voice counter 18 is 6 or more, the voice input to the apparatus is 2 voices. In addition to the one-time CNG signal, it is considered that there is a voice message from the calling side. And
In such a case, the recorded content is not erased but remains, so the voice message from the calling side can be surely known, and the recorded content is erased even if there is a voice message, which is inconvenient. There is no.

Further, when the silent state is detected within 70 seconds from the start of the recording operation, the voice counter 18
If the count value of is less than or equal to 2, it is considered that facsimile communication is performed by manual transmission from the calling side without a voice message. Then, the recording operation is stopped, and the recording data stored in the RAM 30 is erased by the recording operation. When the count value is 3 or more, it is considered that the facsimile communication is performed by the manual transmission after the voice message from the calling side,
The recording operation is stopped, and the recording data stored in the RAM 30 is retained as it is by this recording operation.

That is, when the silent state is detected within 70 seconds from the start of the recording operation and the count value of the voice counter 18 is 2 or less, it is considered that there is almost no voice input to the apparatus. . In such a case, since the recorded contents are erased, it is possible to surely prevent the silent state from being recorded and the discomfort during reproduction, and the storage capacity of the RAM 30 of the recording device 3 is wasted. Can be reliably prevented.

If the silent state is detected within 70 seconds from the start of the recording operation and the count value of the voice counter 18 is 3 or more, a voice message from the calling side is input to the device. Conceivable. In such a case, the recorded content is not erased and remains, so that the voice message from the calling side can be surely known, and the recorded content is erased despite the voice message, which is inconvenient. There is no such thing. Furthermore, when the instantaneous interruption is detected and the count value of the voice counter 18 is 2 or less, it is considered that the voice input to the apparatus is only the instantaneous interruption sound and there is no voice message from the calling side. To be Then, in such a case, the recording operation is stopped and the recording data stored in the RAM 30 is erased by the recording operation. Therefore, it is possible to reliably prevent only the momentary interruption sound from being recorded after the silent state, such as in the case where the calling side goes on-hook without a voice message, and to feel uncomfortable at the time of reproduction. It is possible to reliably prevent the storage capacity of the RAM 30 from being wasted.

When a momentary interruption is detected and the count value is 3 or more, it is considered that the voice input to the apparatus includes a voice message from the calling side in addition to the momentary interruption. . Then, in such a case, the recording operation is stopped and the RAM 3 is caused by this recording operation.
The recorded data stored in 0 is retained as it is. Therefore, the voice message from the calling side can be surely known, and the recorded contents are not erased and inconvenienced even if there is a voice message.

The present invention is not limited to the configuration of the above-mentioned embodiment, and within the scope of the gist of the present invention,
It is also possible to change the configuration of each unit as follows and embody it. (1) Whether or not to erase the recorded contents based on the count value of the voice counter 18 when the CNG signal is detected twice without the timer 15 measuring 7.5 seconds. Configure to judge. (2) In the above-mentioned embodiment, when the CNG signal is detected twice, the recorded contents are erased when the count value of the voice counter 18 is 5 or less.
Change to a count value other than. Further, in the above-described embodiment, the recorded content is erased when the silent state is detected or when the instantaneous interruption is detected and the count value of the voice counter 18 is 2 or less. Similarly, change to a count value other than 2. (3) The time measured by the timer 15 is not 7.5 seconds, but
Change to another appropriate time. (4) Change the silence detection time to a time other than 8 seconds. (5) Configure to shift to facsimile operation when the CNG signal is detected once.

[0079]

Since the present invention is configured as described above, when the recording operation is performed, the recorded contents can be surely left when the voice message is received from the calling side, and the voice message can be surely left. When there is no sound, the recorded contents can be erased, and it is possible to reliably prevent the CNG signal, the momentary interruption, and the silent state from being recorded, which may cause discomfort during playback and waste of the memory capacity of the recording device. It has an excellent effect that it can.

[Brief description of drawings]

FIG. 1 is a block circuit diagram showing an embodiment of a facsimile machine with an answering machine recording function embodying the present invention.

FIG. 2 is a timing chart showing a receiving operation of the facsimile apparatus.

FIG. 3 is an explanatory diagram illustrating an operation of measuring a voice time by a voice counter.

FIG. 4 is a flowchart showing an operation of the facsimile apparatus main body when the facsimile apparatus receives the data.

FIG. 5 is a flowchart showing an operation of the facsimile apparatus main body when the facsimile apparatus receives the data.

FIG. 6 is a flowchart showing the operation of the facsimile apparatus main body when the facsimile apparatus receives the data.

FIG. 7 is a flowchart showing the operation of the recording device when the facsimile device receives the data.

[Explanation of symbols]

2 ... Facsimile device main body, 3 ... Recording device, 6 ... NC
U, 7 ... CPU constituting erasing means, 8 ... ROM constituting erasing means, 9 ... RAM constituting erasing means, 18 ...
A sound counter as a sound measuring means, 24 ... a CPU forming an erasing means, 27 ... a DSP forming an erasing means, 3
0 ... RAM forming erase means.

Claims (3)

(57) [Claims] Claim: What is claimed is: 1. An apparatus provided with an erasing means for erasing the recorded contents, which can be switched between the recording operation of a voice message from the calling side and the transmission / reception of image data, and the time of the voice input during the recording operation A facsimile machine with an absence recording function, which is provided with voice measuring means for measuring, and wherein the erasing means is configured to erase the recorded contents when the length of the measured voice is a predetermined time or less. 2. Transmission and reception of image data within a predetermined time after the start of recording
When switching to operation, measure with the above audio measurement means
The erasing means recorded regardless of the length of the recorded audio.
The sound data is erased, and the image data is
When switching to the sending / receiving operation of
The erasing means records based on the length of the voice measured in the column.
A file with an absence recording function according to claim 1, which erases the sound content.
Kushimil equipment. 3. The voice measuring means is a time section of a predetermined length.
The presence or absence of an audio signal is detected for each interval, and the time when the audio signal was present
The method according to claim 1, wherein the number of sections is output as the length of time of voice.
Is a facsimile machine with the absence recording function described in 2.