JP3715862B2 - Image communication device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image communication apparatus, and more particularly to an image communication apparatus capable of supporting a modem dial-in service.
[0002]
Note that the modem dial-in service is V.30. A dial-in service performed by sending number information using a modem signal system conforming to the standard No. 23. A number display service or the like can also be received through the modem dial-in service.
[0003]
[Prior art]
A conventional facsimile apparatus capable of modem dial-in service, when detecting an information receiving terminal activation signal, responds first, A modem signal conforming to the standard No. 23 is received, and subsequent incoming control contents are executed based on the received information.
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned conventional example, when a telephone compatible with the modem dial-in service is connected to the facsimile apparatus capable of supporting the modem dial-in service, and the line is connected to the telephone side, the information receiving terminal activation signal is detected. Primary response, V.V. Only a telephone capable of supporting the modem dial-in service receives the modem signal in accordance with the standard V.23. 23, the telephone cannot send a modem signal to the facsimile apparatus, and the facsimile apparatus is compatible with the modem dial-in service, but the facsimile apparatus is based on the modem dial-in information. There is a problem that control cannot be executed.
[0005]
When a telephone that does not support the modem dial-in service is connected to a facsimile machine that can support the modem dial-in service, and the line is connected to the telephone side, the detection of the information receiving terminal activation signal, the primary response, V. The telephone that does not support the modem dial-in service cannot execute the reception of the modem signal conforming to the standard 23. In this case, the facsimile apparatus is capable of supporting the modem dial-in service. Detection of information reception terminal activation signal, primary response, V. Therefore, there is a problem that a facsimile apparatus capable of supporting the modem dial-in service cannot execute control based on the modem dial-in information.
[0006]
Also, regardless of whether a telephone that supports modem dial-in service is connected to a facsimile machine that supports modem dial-in service or a telephone that does not support modem dial-in service is connected, When connected to the facsimile machine side, detection of an information receiving terminal activation signal, primary response, V. Facsimile apparatus capable of supporting modem dial-in service executes reception of a modem signal conforming to H.23. The facsimile apparatus cannot execute control for connecting a line to either the telephone or the facsimile apparatus by a modem signal conforming to the standard No. 23. There is a problem that the control based on cannot be executed.
[0007]
Each of the above problems is also a problem that occurs in image communication apparatuses such as personal computers and videophones having an image communication function other than the facsimile apparatus.
[0008]
An object of the present invention is to provide an image communication apparatus capable of executing control based on model dial-in information when a telephone is connected in an image communication apparatus capable of supporting a modem dial-in service.
[0009]
[Means for Solving the Problems]
According to the present invention, in an image communication apparatus compatible with a modem dial-in service, registration means for registering incoming control contents corresponding to the modem dial-in service and a telephone capable of supporting the modem dial-in service are connected to the image communication apparatus. The primary response to the information receiving terminal activation signal; The modem is made to receive a modem signal in accordance with the standard 23. 23 is received and is registered in the registration means. If the incoming call control content corresponding to the modem signal conforming to 23 is image communication, the telephone line is disconnected from the telephone side, connected to the image communication apparatus side, and a reception completion signal is transmitted. When the first control means for performing the next response and executing the image communication and the telephone capable of supporting the modem dial-in service are connected to the image communication apparatus, the first response to the information receiving terminal activation signal, V . The modem is made to receive a modem signal in accordance with the standard 23. 23 is received and is registered in the registration means. If the incoming call control content corresponding to the modem signal conforming to 23 is not image communication, a second control means for causing the telephone to transmit a reception completion signal to the telephone and to cause the telephone to receive a secondary response to the calling signal; When a telephone that does not support the modem dial-in service is connected to the communication device, a primary response is made to the information receiving terminal activation signal, and V. 23 is received and is registered in the registration means. If the incoming call control content corresponding to the modem signal conforming to the standard 23 is image communication, a third control means for transmitting the reception completion signal, performing a secondary response to the calling signal, and executing the image communication; When a telephone that does not support the modem dial-in service is connected to the image communication apparatus, a primary response to the information receiving terminal activation signal is made, and 23 is received and is registered in the registration means. If the content of the incoming call control corresponding to the modem signal conforming to 23 is not image communication, a reception completion signal is transmitted, and a fourth control means for connecting a telephone line to the telephone side and the connected telephone are: Setting means for setting whether to support the modem dial-in service, and when the setting means sets that the telephone is compatible with the modem dial-in service, the first control means Alternatively, when the second control means is executed and the setting means sets that the telephone does not support the modem dial-in service, the third control means or the fourth control means is An image communication apparatus that executes the image communication apparatus.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
[First embodiment]
FIG. 1 is a diagram showing a configuration of a facsimile machine 100 according to the first embodiment of the present invention.
[0012]
In order to use the telephone network for data communication, the NCU (network control unit) 2 is connected to the terminal of the line, performs connection control of the telephone exchange network, switches the data communication path, and maintains the loop. Is what you do. If the signal level (signal line 20a) from the control circuit 20 is “0”, the NCU 2 connects the telephone line 2a to the telephone 4 side. If the signal level is “1”, the NCU 2 connects the telephone line 2a. It connects to the facsimile machine side. In a normal state, the telephone line 2a is connected to the telephone 4 side.
[0013]
The hybrid circuit 6 separates the transmission system signal and the reception system signal, sends the transmission signal from the adder circuit 12 to the telephone line 2a via the NCU 2, receives the signal from the other party via the NCU 2, and receives the signal line. The data is sent to the modem 8 via 6a.
[0014]
The modem 8 is an ITU-T recommendation V.30. 8, V. 21, V.R. 23, V.I. 27ter, V.I. 29, V.R. 17, V. 34 is a modulator / demodulator that performs modulation and demodulation based on 34, and each transmission mode is designated by a signal line 20c. Further, the modem 8 receives the signal output to the signal line 20b, outputs the modulation data to the signal line 8a, receives the reception signal output to the signal line 6a, and inputs the demodulated data to the signal line 8b. Output to.
[0015]
The ANSam signal transmission circuit 10 transmits the ANSam signal to the signal line 10a when the signal level “1” is output to the signal line 20d, and the signal level “0” is output to the signal line 20d. When it is output, nothing is output to the signal line 10a.
[0016]
The adder circuit 12 is a circuit that inputs the information of the signal line 8a and the information of the signal line 10a and outputs the addition result to the signal line 12a. The reading circuit 14 is a circuit that outputs the read data to the signal line 14a. The recording circuit 16 is a circuit that sequentially records the information output to the signal line 20e for each line.
[0017]
The memory circuit 18 is a circuit used for storing raw information of read data or encoded information, and for storing received information or decoded information.
[0018]
When the telephone 30 forms a DC loop with the relay 30 short-circuited, the DC loop detection circuit 22 outputs a signal level “1” to the signal line 22a, and the relay 30 is short-circuited. In this state, when the telephone 4 does not form a DC loop, the circuit outputs a signal level “0” to the signal line 22a.
[0019]
When the information reception terminal activation signal detection circuit 24 receives information on the signal line 22b and detects an information reception terminal activation signal, the information reception terminal activation signal detection circuit 24 outputs a signal of signal level “1” to the signal line 24a to activate the information reception terminal. When no signal is detected, the circuit outputs a signal level “0” to the signal line 24a.
[0020]
The call signal detection circuit 26 inputs the information of the signal line 22b and outputs a signal of signal level “1” to the signal line 26a when the call signal is detected. When the call signal is not detected, the call signal detection circuit 26 This circuit outputs a signal having a signal level “0” to the line 26a.
[0021]
V. The modem signal detection circuit 28 compliant with the standard 23 inputs the information of the signal line 22b, 23 is a circuit for outputting the demodulated information to the signal line 28a.
[0022]
The relay 30 connects the signal line 22b and the signal line 4a when the signal level “0” is output to the signal line 20g, and the signal level “1” is output to the signal line 20g. This is a relay that does not connect the signal line 22b and the signal line 4a.
[0023]
The operation unit 32 includes a one-touch dial, an abbreviated dial, a numeric keypad, a * key, a # key, a set key, a start key, a stop key, a registration key for the registration circuit 34, and other function keys. Are output to the signal line 32a.
[0024]
The registration circuit 34 is a circuit for registering the incoming call control content corresponding to the modem dial-in service. When the telephone number on the receiving side is notified as “03-3111-1111” by a modem signal conforming to the standard 23, facsimile communication is executed. When a telephone number other than “03-3111-1111” is notified as a telephone number on the receiving side by a modem signal conforming to the standard 23, it is registered that a telephone call is executed.
[0025]
The selection button 36 is a button for selecting the type of the external telephone, and is a button for selecting whether the external telephone is compatible with a modem dial-in service or whether the external telephone is not compatible with a modem dial-in service. Then, a pressing pulse is generated on the signal line 36a.
[0026]
The display circuit 38 is an external telephone type display circuit. When a clear pulse is generated on the signal line 20f, a message “External telephone is not compatible with modem dial-in service” is displayed. Is displayed, "External telephone is compatible with modem dial-in service" → "External telephone is not compatible with modem dial-in service" → "External telephone is compatible with modem dial-in service" When the message “External telephone is not compatible with modem dial-in service” is displayed, a signal level “0” is output to the signal line 38a, and “External telephone is compatible with modem dial-in service. Is displayed, the signal level “1” is output to the signal line 38a.
[0027]
The display circuit 40 is a circuit for displaying a message asking the user of the facsimile apparatus 100 to confirm that a telephone compatible with the modem dial-in service is connected, and a signal level “1” is displayed on the signal line 20h. When it is output, a message for confirmation is displayed, and when a signal of signal level “0” is output on the signal line 20h, a message for confirmation is not displayed.
[0028]
If the telephone 4 capable of supporting modem dial-in service is connected to the facsimile apparatus 100, the control circuit 20 performs a primary response to the information receiving terminal activation signal, The modem 4 is made to receive the modem signal in accordance with the standard 23. 23 is received and is registered in the registration circuit 34, and the received V.V. 23, if the incoming call control content corresponding to the modem signal conforming to 23 is facsimile communication, the telephone line is disconnected from the telephone 4 side, connected to the facsimile apparatus 100 side, a reception completion signal is transmitted, and the secondary to the call signal is transmitted. It is a circuit that responds and performs control to execute facsimile communication.
[0029]
If the telephone 4 capable of supporting modem dial-in service is connected to the facsimile apparatus 100, the control circuit 20 generates a primary response to the information receiving terminal activation signal, The modem 4 is made to receive the modem signal in accordance with the standard 23. 23 is received and is registered in the registration circuit 34, and the received V.V. If the incoming call control content corresponding to the modem signal conforming to No. 23 is not facsimile communication, the reception completion signal is transmitted to the telephone 4 and the secondary response to the calling signal is controlled to the telephone 4.
[0030]
If the telephone 4 that does not support the modem dial-in service is connected to the facsimile apparatus 100, the control circuit 20 makes a primary response to the information receiving terminal activation signal and 23 is received and is registered in the registration circuit 34, and the received V.V. If the incoming call control content corresponding to the modem signal conforming to the standard No. 23 is facsimile communication, the reception completion signal is transmitted, and a secondary response to the call signal is sent to perform control for executing the facsimile communication.
[0031]
If the telephone 4 that does not support the modem dial-in service is connected to the facsimile apparatus 100, the control circuit 20 makes a primary response to the information receiving terminal activation signal and 23 is received and is registered in the registration circuit 34, and the received V.V. If the incoming call control content corresponding to the modem signal conforming to the standard No. 23 is not facsimile communication, it is a circuit that transmits a reception completion signal and controls the telephone line to be connected to the telephone 4 side.
[0032]
Further, the control circuit 20 allows the telephone 4 to be connected to the modem dial-in by the selection button 36 and the display circuit 38 which are examples of setting means for setting whether or not the connected telephone is compatible with the modem dial-in service. When it is set to be compatible with the service, the same control as when the telephone 4 capable of modem dial-in service is connected to the facsimile apparatus 100 is performed, and the selection button 36 and the display circuit 38 When the telephone 4 is set not to support the modem dial-in service, the circuit performs the same control as when the telephone 4 not compatible with the modem dial-in service is connected to the facsimile apparatus 100.
[0033]
Further, when the telephone 4 that supports the modem dial-in service is connected to the facsimile apparatus 100, the control circuit 20 uses the facsimile apparatus 100 when the telephone 4 does not respond to the information receiving terminal activation signal. This is a circuit for performing control to display a message for confirming that a telephone supporting modem dial-in service is connected.
[0034]
Next, the operation of the facsimile machine 100 will be described.
[0035]
2 to 5 are flowcharts showing the operation of the facsimile machine 100. FIG.
[0036]
First, the control circuit 20 of the facsimile apparatus 100 generates a clear pulse on the signal line 20f and displays on the display circuit 38 that "the external telephone is not compatible with modem dial-in service" (S2), and the signal line 20h. No signal level “0” is output to the display circuit 40 to confirm that a telephone compatible with the modem dial-in service is connected (S4).
[0037]
Subsequently, the signal level “1” is output to the signal line 20g, the relay 30 is opened (S6), the signal level “0” is output to the signal line 20a, and the CML is turned off (S8). ), The signal level “0” is output to the signal line 20d, and the ANSam signal is not transmitted (S10).
[0038]
Next, the information on the signal line 32a is inputted, and it is determined whether or not the registration circuit 34 for registering the incoming call control content corresponding to the modem dial-in service is selected to register the incoming call control content (S12). When registration is selected, the following is registered in the registration circuit 34 via the signal line 34a. That is, V.I. When the telephone number “03-3111-1111” is notified by a modem signal conforming to the standard No. 23, registration is performed to execute facsimile communication. When a telephone number other than the telephone number “03-3111-1111” is notified by a modem signal conforming to the standard No. 23, registration is performed to execute a call (S14). Subsequently, information on the signal line 38a is input to determine whether or not the external telephone 4 is compatible with the modem dial-in service (S16).
[0039]
Next, when the external telephone 4 supports the modem dial-in service (S16), a signal level “0” is output to the signal line 20g, and the relay 30 is short-circuited (S18). If the attached telephone 4 is not compatible with the modem dial-in service (S16), a signal level “1” is output to the signal line 20g and the relay 30 is opened (S20).
[0040]
When the CML is on, the facsimile machine 100 forms a direct current loop. Further, when the CML is off and the relay 30 is on, a DC loop is formed by the telephone 4. When the CML is off and the relay 30 is off, no DC loop is formed by either the facsimile machine 100 or the telephone 4.
[0041]
When a signal of signal level “0” is output to the signal line 20g and the relay 30 is short-circuited (S18), subsequently, information on the signal line 24a is input to determine whether an information reception terminal activation signal has been detected. When the information reception terminal activation signal is detected (S22), the timer T is set to 10 seconds (S26). When the information reception terminal activation signal is not detected, other processing is performed (S24).
[0042]
After 10 seconds is set in the timer T (S26), information on the signal line 22a is input, and before the timer T expires, it is determined whether or not the telephone 4 has formed a DC loop (S28, S30). ), When the telephone 4 forms a DC loop before the timer T expires, the information on the signal line 28a is input, A modem signal compliant with the standard 23 is received and stored (S44). On the other hand, when the telephone set 4 does not form a DC loop and the timer T expires, a signal level “1” is output to the signal line 20h to check whether the telephone set 4 is a telephone compatible with the modem dial-in service. Is displayed on the message display circuit 40 that asks for confirmation (S32). This display is erased by some key operation.
[0043]
Next, information on the signal line 26a is input to determine whether or not a call signal has been detected (S34). When a call signal is detected, a signal level “1” is output to the signal line 20a, The CML is turned on to form a DC loop (S36), the pre-procedure is executed (S38), the image signal is received and recorded (S40), and the post-procedure is executed (S42). On the other hand, if the call signal is not detected, the process returns to step S8 to turn off the CML. Here, even if the exchange outputs an information receiving terminal activation signal for 6 seconds, if there is no response from the terminal side (facsimile device 100 or telephone 4 side), it outputs a calling signal.
[0044]
Further, the information on the signal line 28a is inputted, and the V.V. When the modem signal is received and stored (S44), information on the registration circuit 34 is input via the signal line 34a. 23, it is determined whether or not the telephone number received by the modem signal conforming to 23 is a signal for executing facsimile communication (S46). If it is not a signal for executing facsimile communication, information on the signal line 22a is input and the telephone 4 It is determined whether or not the DC loop has been cut off, that is, whether or not a reception completion signal has been sent (S52). 23, when the telephone number received by the modem signal conforming to 23 is a signal for executing facsimile communication, the signal level “0” is output to the signal line 20 g, the relay 30 is opened, and the line is connected from the telephone 4. The reception completion signal is transmitted to the exchange without disconnecting and forming a DC loop (S48).
[0045]
Next, information on the signal line 26a is input to determine whether or not a call signal has been detected (S50), and when a call signal is detected, a signal level “1” is output to the signal line 20a. After the CML is turned on and a DC loop is formed (S36), the pre-procedure is executed (S38), the image signal is received and recorded (S40), and the post-procedure is executed (S42).
[0046]
When the telephone 4 breaks the DC loop, that is, when a reception completion signal is sent (S52), information on the signal line 26a is input, and it is determined whether or not a call signal is detected (S54). If detected, information on the signal line 22a is input, and it is determined whether or not the telephone 4 has formed a DC loop, that is, whether or not a secondary response has been made (S56). Is executed (S58).
[0047]
Subsequently, information on the signal line 22a is input to determine whether or not the telephone 4 has broken the DC loop (S60). When the telephone 4 breaks the DC loop, the process returns to step S8 to turn off the CML. .
[0048]
If the external telephone 4 is not compatible with the modem dial-in service, the signal level "1" is output to the signal line 20g, the relay 30 is opened (S20), and then the information on the signal line 24a is input. Then, it is determined whether or not the information receiving terminal activation signal is detected (S62). If the activation signal is not detected, other processing is performed (S24). If the activation signal is detected, the signal level “20” is applied to the signal line 20a. 1 "is output, CML is turned on, and a primary response is made (S64).
[0049]
Subsequently, using the modem 8, the V.D. 23 receives and stores a modem signal conforming to the standard No. 23 (S66), inputs information of the display circuit 34 via the signal line 34a, It is determined whether or not the telephone number of the modem signal conforming to 23 is a signal for executing facsimile communication (S68), and if it is a signal for executing facsimile communication, a signal level “0” is applied to the signal line 20g. Is output, the relay 30 is opened, the line is disconnected from the telephone 4, and a reception completion signal is transmitted to the exchange without forming a DC loop (S48). V. If the telephone number of the modem signal conforming to 23 is not a signal for executing facsimile communication, a signal level "1" is output to the signal line 20g, the relay 30 is opened, and a reception completion signal is transmitted (S70). .
[0050]
Next, information on the signal line 26a is input, and it is determined whether or not a call signal is detected (S72). When a call signal is detected, a signal level “0” is output to the signal line 20g, and the relay 30 (S74), it is determined whether or not the telephone 4 has formed a DC loop, that is, whether or not a secondary response has been made (S56). When the telephone 4 forms a DC loop, a call is executed (S58). ).
[0051]
According to the facsimile machine 100, the telephone 4 connected to the facsimile machine 100 can be used regardless of whether or not the telephone 4 supports the modem dial-in service. When a modem signal compliant with the standard 23 is received, It is possible to execute control based on a modem signal compliant with the standard 23.
[0052]
Even if the external telephone is a telephone compatible with a modem dial-in service, the external telephone does not form a DC loop for some reason after detecting the information receiving terminal activation signal. There is. In this case, the user of the facsimile apparatus 100 takes prompt action by displaying on the message display circuit requesting confirmation that the external telephone is requesting confirmation that the telephone is compatible with the modem dial-in service. V. When a modem signal compliant with the standard 23 is received, Therefore, it is possible to reliably execute the control based on the modem signal conforming to the standard No. 23.
[0053]
[Second Embodiment]
The second embodiment is different from the first embodiment in that a V.P. As the information notification service based on the modem signal compliant with the standard 23, there is provided a pre-communication information notification service, for example, a facsimile apparatus compatible with a transfer destination telephone number notification service and a dial number notification service.
[0054]
The facsimile apparatus 100 is an example of an image communication apparatus, and the above embodiment can be applied to an image communication apparatus such as a personal computer or a videophone having an image communication function instead of the facsimile apparatus.
[0055]
【The invention's effect】
According to the present invention, in an image communication apparatus capable of supporting a modem dial-in service, when a telephone is connected, it is possible to perform control based on model dial-in information.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a facsimile apparatus 100 according to a first embodiment of the present invention.
FIG. 2 is a flowchart showing the operation of the facsimile machine 100.
3 is a flowchart showing the operation of the facsimile apparatus 100. FIG.
4 is a flowchart showing the operation of the facsimile machine 100. FIG.
FIG. 5 is a flowchart showing the operation of the facsimile machine 100.
[Explanation of symbols]
100: facsimile machine,
2 ... NCU,
4 ... Telephone,
20 ... control circuit,
22 ... DC loop detection circuit,
24. Information reception terminal activation signal detection circuit,
26: Call signal detection circuit,
28 ... V. Modem signal detection circuit according to 23,
30 ... Relay,
34. Incoming control content registration circuit corresponding to modem dial-in,
36 ... External phone type selection button,
38 ... External telephone type display circuit,
40: A circuit for displaying a message for confirming that a telephone compatible with modem dial-in is connected.

Claims (3)

In an image communication apparatus capable of supporting a modem dial-in service,
Registration means for registering the incoming call control content corresponding to the modem dial-in service;
When a telephone capable of supporting modem dial-in service is connected to the image communication apparatus, a primary response to the information reception terminal activation signal; The modem is made to receive a modem signal in accordance with the standard 23. 23 is received and is registered in the registration means. If the incoming call control content corresponding to the modem signal conforming to 23 is image communication, the telephone line is disconnected from the telephone side, connected to the image communication apparatus side, and a reception completion signal is transmitted. First control means for performing next communication and executing image communication;
When a telephone capable of supporting modem dial-in service is connected to the image communication apparatus, a primary response to the information reception terminal activation signal; The modem is made to receive a modem signal in accordance with the standard 23. 23 is received and is registered in the registration means. A second control means for causing the telephone to transmit a reception completion signal and to cause the telephone to receive a secondary response to the ringing signal if the incoming call control content corresponding to the modem signal conforming to 23 is not image communication;
When a telephone that does not support the modem dial-in service is connected to the image communication apparatus, a primary response to the information reception terminal activation signal is made, and 23 is received and is registered in the registration means. If the incoming call control content corresponding to the modem signal conforming to No. 23 is image communication, a third control means for transmitting the reception completion signal and performing the image communication by sending a secondary response to the calling signal;
When a telephone that does not support the modem dial-in service is connected to the image communication apparatus, a primary response to the information reception terminal activation signal is made, and 23 is received and is registered in the registration means. A fourth control means for transmitting a reception completion signal and connecting a telephone line to the telephone side if the incoming call control content corresponding to the modem signal conforming to 23 is not image communication;
Setting means for setting whether or not the connected telephone is compatible with a modem dial-in service;
And the setting means executes the first control means or the second control means, while the setting means executes the first control means or the second control means. An image communication apparatus that executes the third control means or the fourth control means when the telephone set is not compatible with the modem dial-in service . In claim 1 ,
When a telephone that supports the modem dial-in service is connected, when the telephone does not respond to the information reception terminal activation signal, a telephone that supports the modem dial-in service is provided to the user of the image communication apparatus. An image communication apparatus, characterized by displaying a message requesting confirmation of connection. In claim 1 or claim 2 ,
An image communication apparatus, wherein the image communication is facsimile communication, and the image communication apparatus is a facsimile apparatus.

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