JPH09149152A - Data communication device - Google Patents

Abstract

(57) Abstract: It is an object of the present invention to provide a data communication device compatible with Caller ID service, which can obtain an inappropriate operation when data of Caller ID is missed. SOLUTION: When data of Caller ID is missed, the line is connected to the telephone side so that if the telephone number of the other party is unknown, the operator can select whether to receive or not.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to Caller I.
The present invention relates to a data communication device such as a facsimile compatible with D service.

[0002]

2. Description of the Related Art In conventional facsimile machines, there has been a strong demand for rejecting mischievous faxes, direct mail (DM) and the like. That is, in the case of a facsimile machine, since the above-mentioned undesired facsimile has been received, there is a case where the recording paper is exhausted and the desired facsimile cannot be received.

[0003]

By the way, Calle
There is no rDI compatible facsimile device in Japan yet, but it seems that there is a demand to realize the function of rejecting the incoming call by detecting the destination telephone number from the Caller ID data.

When the facsimile device is made to correspond to the Caller ID, it is possible to disconnect the slave telephone side from the line in the standby state in order to eliminate the influence of the impedance of the ringer on the slave telephone side. In this state, even if the ringing signal arrives, the ringer does not ring and the Caller
Reject incoming calls, receive faxes by ID data,
Switch to processing such as child phone connection.

However, in the method described above, Cal is used.
Caller ID when it is possible to support ler ID
The following inconvenience arises if the processing for missing the data is not decided.

That is, the facsimile machine remains in standby. Therefore, on the sending side, the RBT is
On the other hand, the receiving side facsimile machine does not ring and does not receive the ringer. Moreover, the moment you go off-hook trying to make a call from here, you will be connected to the destination.

For example, when the data of the Caller ID is missed, the line is drawn to the facsimile side and the F / T
Suppose you decide to switch. in this case,
The problem of receiving the mischievous FAX or DM described in the conventional example remains. Further, if all the data of the Caller ID is missed, if all the incoming calls are rejected, the telephone or facsimile that is really necessary cannot be received.

[0008] Therefore, the present invention provides a Caller ID service compatible data communication apparatus, in which the Caller
An object of the present invention is to provide a data communication device that can obtain an inappropriate operation when ID data is missed.

[0009]

SUMMARY OF THE INVENTION The present invention is a data communication device which has a sub-telephone connection terminal and is compatible with Caller ID service, and a detection unit for detecting a signal and data of the Caller ID service, and a communication device. It has switching means for switching the line to the sub-telephone and separation means for disconnecting the sub-telephone connection terminal from the line. In the standby state, the sub-telephone side is disconnected from the line in the separation means, and the other end is detected by the detection means. By providing a control means for controlling the line to be connected to the sub-phone side when the telephone number is not detected, the operator can select whether to receive the telephone number if the telephone number of the other party is unknown. .

Using the Caller ID service,
Rejecting calls and faxes that you do not want to receive is considered to be the greatest demand for Caller ID. Therefore, when it is not known who the other party is, as in the present invention, connecting to the operator for the time being matches the demand.

In the case of a facsimile, a mischievous FA
When X or direct mail is received, the recording paper may be exhausted and the necessary FAX may not be received, but the present invention exerts a great effect in preventing such a case.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 2 is a block diagram showing the overall construction of a facsimile apparatus according to an embodiment of the present invention.

The reading unit 1 is a scanner device for reading an image, and the recording unit 2 is a printer device for recording an image. The operation unit 3 has various keys such as a start key, a one-touch key, and a numeric keypad, and a display unit such as an LCD.

The control unit 4 controls the entire facsimile apparatus, and stores a control program.
Includes OM, CPU, RAM, etc. The modem 5 modulates image data encoded by the control unit 4 into MH, MR, etc., and demodulates data from the line.

The tone detector 6 detects a tone such as a CNG signal, and the DTMF detector 7 detects a DTM.
The F signal is detected. The NCU 8 includes various switching relays and controls switching between the telephone 9 and the line 10.

Next, FIG. 1 is a block diagram showing the configuration of a communication system in the facsimile apparatus of this embodiment.

The CML relay 11 is a line (L1, L2)
Is a relay that switches between a facsimile and a child phone,
When the power is off, the line 10 is connected to the slave telephone side. The P relay 12 is a relay that generates a dial pulse, and is open when the power is off. The pseudo inductance 13 is
It is a circuit that forms a DC loop.

The S relay 14 is a relay that short-circuits the pseudo inductance 13 when a dial pulse is generated.
It is open when the power is off. The capacitor 15 is a capacitor for cutting direct current, and the transformer 16 is 6
00Ω: 600Ω transformer.

The 2-wire / 4-wire conversion circuit 17 is a circuit for separating a reception signal from the transformer and a transmission signal from the modem. The CI detection circuit 18 detects a call signal (Ci), and the CNG detection circuit 19 detects a CNG in a state where the line is closed on the slave telephone side.

The DTMF detection circuit 20 detects a DTMF signal for remote reception and remote control of an answering machine. The H relay 21 is a child telephone (T
1, T2) is connected to the CML relay 11 side or the pseudo CI / slave telephone power supply circuit 22 side. When the power is off, the slave telephone is connected to the CML relay 11 side.

The off-hook detection circuit 23 detects the off-hook of the child telephone, and the polarity detection circuit 24 detects the polarity of the line. There are two outputs and the line polarities +,-, DC. Can detect no voltage condition.

FIG. 3 is an explanatory view showing an example of a signal sequence in the Caller ID service. This is the On-hook State with power rin provided in the United States.
An example of ging is shown.

The ringing pattern 41 is sent for 1 second at a silence interval of 4 seconds in the case of an American ringing signal. The physical structure of the Caller ID data 42 is M
This is an FSK signal having an ARK of 1200 Hz, a SPACE of 2200 Hz, and a transmission rate of 1200 baud. The data structure is dael following chanel seizure signal.
It is ta transmission. The telephone number of the transmission destination is sent to data in the form of a code.

The transmission timing of Caller ID data is T1 (250 ms) of the first ringing pattern.
ec or later), the data transmission time T2 is 2.9 to
3.7 sec, the time from the completion of data transmission to the next ringing pattern is T3 (200 msec or more).
Furthermore, there is a regulation of the impedance condition for the line, and the DC loop is not closed between bc and AC600.
Must be Ω.

Next, an outline of the operation of this embodiment will be described.

First, in the standby state, the H relay 21
Is turned on (pseudo CI / power supply circuit 22 side) to enable fax reception without ringing, and to receive Caller ID without being affected by the impedance of the ringer of the sub-phone.
It is possible to detect the data of. When the first ringing pattern is detected by the CI detection circuit 18, the CML relay 11 is turned on (connection on the facsimile side) and the transformer 16 realizes AC 600Ω. And FAX
When receiving, the P relay 12 is further turned on to close the DC loop, and when connecting to the slave telephone, the CML relay 1
First, the H relay 21 is turned off so that the second and subsequent ringing patterns ring the ringer of the child phone.

Next, details of the operation of the facsimile apparatus of this embodiment will be described with reference to the flow charts of FIGS.

FIG. 5 is a flow chart showing the operation of the facsimile apparatus of this embodiment during standby.
The states of the relays in the standby state are that the CML relay 11 is off (telephone side), the P relay 12 is off (open), the S relay 14 is off (open), and the H relay 21.
Is ON (pseudo CI / power supply circuit 22 side).

First, in S1, it is determined whether or not the off-hook detecting circuit 23 has detected the off-hook of the child telephone. Here, if the off-hook is detected, the process proceeds to S2, and the off-hook process is performed.

If no off-hook is detected, the process proceeds to S3, and the CI detection circuit 18 determines whether or not the CI has arrived. Then, if there is a CI incoming call, the process proceeds to S4 to perform incoming call processing. If the CI has not arrived, the process proceeds to S5, and it is determined whether there is a key input for calling such as a start key or a one-touch key. Then, if there is a key input for making a call, the process proceeds to S6 to perform a call process. If there is no key input for calling, the process returns to S1.

The off-hook process, the incoming call process, and the outgoing call process described above also return to the standby state when the respective processes are completed.

FIG. 6 is a flowchart showing the above-mentioned off-hook processing.

First, in S11, the H relay 21 is turned off (connected to the CML relay 11 side) to connect the child telephone to the line, and the child telephone closes the line. Next, in S12, the input of the start key is checked. here,
If the start key has not been input, the process proceeds to S13 to perform a call process. When the call processing is completed, the process proceeds to S14,
The H relay 21 is turned on, the off-hook processing ends, and the operation returns to the standby.

If the start key is pressed in S12, the process proceeds to S15. In S15, the CML relay 11 and P relay 12 are turned on to connect the line to the facsimile side. Further, the H relay 21 is also turned on.

Then, in S16, the presence or absence of the document is checked. If there is a document here, the process proceeds to S17 to perform a transmission process. If there is no document, the process proceeds to S18, and the reception process is performed. Then, when the processes of S17 and S18 are completed, the process proceeds to S19 in either case, and the CML relay 1
1, the P relay 12 is turned off, the off-hook processing is ended, and the operation returns to the standby.

7 and 8 are flowcharts showing the above-described incoming call processing.

First, in S21, the CML relay 11 is turned on to form AC 600Ω. Then, in S22, it is determined whether or not the data of the Caller ID is detected by the modem 5.

If it is detected, the process proceeds to S23, and it is determined whether the detected telephone number of the destination is the number registered in the facsimile by one-touch dialing or the telephone directory.
If the number is a registered number, the process proceeds to S24 and Cal
It is determined from the data of ler ID whether the other party is a facsimile.

If the other party is a facsimile, S2
5, the P relay 12 is turned on to close the line, and S2
In step 6, the tone detection circuit 6 detects CNG. If CNG is detected here, the process proceeds to step S27 to perform a reception process. When the receiving process is completed, the process proceeds to S28, the P relay 12 and the CML relay 11 are turned off to open the line, the incoming process is completed, and the process returns to the standby.

If CNG is not detected in S26, the process proceeds to S29, in which the pseudo CI generating circuit 22 sends the pseudo CI to the child telephone. Then, in S30 and S31, the off-hook detection circuit 2 detects the off-hook for a certain period of time.
3 (off-hook detection continues in S30 while no timeout occurs in S31). The timeout setting value in S31 is variable, but is set to 15 seconds by default.

When the off-hook is detected in S30, the process proceeds to S32, and the pseudo CI transmission is stopped. In S33,
The P relay 12, the CML relay 11, and the H relay 21 are turned off, the line is connected to the child telephone, and the call processing of S34 is performed. Then, when the call processing is completed, H is set in S35.
The relay 21 is turned on, the incoming call processing is terminated, and the operation returns to the standby.

If the off-hook is not detected in S30 and the time-out occurs in S31, the process proceeds to S36, the transmission of the pseudo CI is stopped, and the P relay 12 and the CML relay 11 are turned off in S37 to receive the incoming call. Finish the process and return to standby.

If the other party is not a facsimile in S24, the process proceeds to S38, the H relay 21 and the CML relay 11 are turned off, and the line is connected to the child telephone. Then, the call processing is performed in S39, and when the call processing ends,
In S40, the H relay 21 is turned on, the incoming call processing is terminated, and the operation returns to the standby.

However, if a remote reception signal from a child telephone is detected in this call processing, the process immediately shifts to facsimile reception. In the case of this embodiment, the remote reception signal is DTM.
The F signal (default 25). This signal is DTMF
If detected by the detection circuit 20, remote reception is performed.

In S23, when the detected telephone number of the destination is not registered, the process proceeds to S41. S41
~ S43 is an operation of rejecting the incoming call. In the present embodiment, the line is captured for 0.5 seconds and immediately opened, but the time for capturing the line may be another value,
It is also possible to return to standby as it is without capturing the line.

Specifically, in S41, the P relay 12
Turn on and close the line on the facsimile side. And S
At 42, after waiting for 0.5 seconds, at S43, the P relay 12 and the CML relay 11 are turned off to open the line,
Terminates incoming call processing and returns to standby.

Now, in S22, the Caller I
If the D data is not detected or is not detected, the process proceeds to S38 and the line is connected to the slave telephone side. This is to connect the operator on the child telephone side for the time being and to let the operator decide whether to receive a telephone call or a facsimile when the person who is the other party is unknown.

FIG. 9 is a flow chart showing the above-mentioned calling process.

CML relay 11 and P relay 1 in S51
2. The S relay 14 is turned on, and then a dial call is made in S52. In S53, the S relay 14 is turned off, and the transmission process of S54 is performed. When the transmission process ends, S5
At 5, the CML relay 11 and the P relay 12 are turned off, the calling process is terminated, and the process returns to the standby.

Next, another embodiment of the present invention will be described. The configuration of the facsimile machine is the same as that of the above-described embodiment (FIGS. 1 and 2), and the description thereof is omitted.

FIG. 4 is an explanatory diagram showing an example of a signal sequence in the Caller ID service. This is an on-hook state without power provided in the United States.
An example of ringing is shown.

Reference numeral 42 is the same Caller ID data as in FIG. And On-hook State without power
Ringing does not receive ringing signals. Also, OSI43
Is a signal for cutting the DC voltage applied to the line during T1 (125 msec). Also, Caller
The impedance condition for the line when detecting the ID data is that the DC loop is not closed between cd and A
It is C600Ω.

Next, an outline of the operation of this embodiment will be described.

First, in the standby mode, the H relay 21 is turned on (pseudo CI / power supply circuit 22 side) to enable FAX reception without ringing, and further, without being affected by the impedance of the ringer of the sub-phone, The data of the Caller ID can be detected.

When the OSI 43 is detected, the CML
The relay 11 is turned on (connected to the facsimile side), and the transformer 16 realizes AC 600Ω. In addition, OSI
43 detects that the output of the polarity detection circuit 24 is in the state without DC. And when receiving a fax,
Further, when the P relay 12 is turned on to close the direct current loop and the sub-phone is connected, the pseudo CI is sent to the sub-phone and the off-hook of the sub-phone is monitored.

Next, the operation of the facsimile apparatus of this embodiment will be described in detail with reference to the flow charts of FIGS.

FIG. 10 is a flow chart showing the standby operation of the facsimile apparatus of this embodiment. In the standby state, the CML relay 11 is off (telephone side), the P relay 12 is off (open), the S relay 14 is off (open), and the H relay 2 is in standby.
1 is ON (pseudo CI / power supply circuit 22 side).

In S61, the off-hook detection circuit 23
Determines whether the off-hook of the child phone is detected by.
When the off-hook is detected, the process proceeds to S62 and the off-hook process is performed. The off-hook processing is the same operation as in FIG.

If the off-hook is not detected, S63
Then, it is determined whether the polarity detection circuit 24 detects OSI. When the OSI is detected, the process proceeds to S64 and the incoming call process is performed.

If the OSI is not detected, the process proceeds to S65, and it is determined whether there is a key input such as a start key or a one-touch key for calling. Then, if there is a key input for calling, the process proceeds to S66 to perform a calling process.
The calling process is the same as that in FIG.

If there is no key input for calling, the process returns to S61. The off-hook process, the incoming call process, and the outgoing call process also return to the standby state when the respective processes are completed.

11 and 12 are flowcharts showing the incoming call processing of this embodiment.

First, in S71, the CML relay 11 is turned on to form AC 600Ω. Then, in S72, it is determined whether or not the data of the Caller ID is detected by the modem 5. Here, if detected, in S73,
Determine whether the detected telephone number of the destination is the number registered in the facsimile by one-touch dialing or phone book.

If it is the registered number, the process proceeds to S74, and it is judged from the data of the Caller ID whether the other party is a facsimile. If the other party is a facsimile, the process proceeds to S75, the P relay 12 is turned on to close the line, and the process proceeds to S76 where the tone detection circuit 6 detects CNG. Here, if CNG is detected, the process proceeds to S77 to perform the receiving process. When the receiving process is completed, the process proceeds to S78, the P relay 12 and the CML relay 11 are turned off to open the line, the incoming process is completed, and the process returns to the standby.

If CNG is not detected in S76, the process proceeds to S79, in which the pseudo CI generating circuit 22 sends the pseudo CI to the child telephone. Then, in S80 and S81, the off-hook detection circuit 2 detects the off-hook for a certain period of time.
3 (off-hook detection continues in S80 while no timeout occurs in S81). The timeout setting value in S81 is variable, but is set to 15 seconds by default.

When the off-hook is detected in S80, the process proceeds to S82, and the pseudo CI transmission is stopped. And S
83 P relay 12, CML relay 11, H relay 21
Is turned off, the line is connected to the child phone, and the call processing of S84 is started. When the call process ends, the H relay 21 is turned on in S85, the incoming call process ends, and the process returns to the standby.

When the off-hook is not detected in S80 and the time-out occurs in S81, the process proceeds to S86, the transmission of the pseudo CI is stopped, and the P relay 12 and the CML relay 11 are turned off in S87 to receive the call. Finish the process and return to standby.

In S74, if the other party is not a facsimile, the process proceeds to S88, the CML relay 11 is turned off, and the pseudo CI is sent to the child telephone in S89. And
In S90 and S91, the off-hook detection circuit 23 detects the off-hook for a certain period of time (while the time-out does not occur in S91, the off-hook detection is continued in S90). Although the timeout setting value in S91 is variable, it is set to 15 seconds by default.

If off hook is detected in S90, S90 is detected.
Proceeding to 92, the transmission of the pseudo CI is stopped. And S9
Turn off the H relay 21 at 3 and connect the line to the sub-phone,
Move on to 94 call processing. However, if a remote reception signal from a child phone is detected in this call processing, the process immediately shifts to facsimile reception.

In the case of this embodiment, the remote received signal is a DTMF signal (default 25). If this signal is detected by the DTMF detection circuit 20, remote reception is performed.

Next, when the call processing is completed, the H relay 21 is turned on in S95, the incoming processing is completed, and the process returns to the standby.

If the off-hook is not detected in S90 and the time-out occurs in S91, the process proceeds to S96, the transmission of the pseudo CI is stopped, the incoming call process is terminated, and the process returns to the standby.

If the detected telephone number of the destination is not registered in S73, the process proceeds to S97. S97 ~
S99 is an operation of rejecting the incoming call. In the present embodiment, the line is captured for 0.5 seconds and released immediately. However, the time for capturing the line may be any other value, and the line is returned to the standby without capturing the line. I don't mind.

Specifically, first, in S97, the P relay 1
Turn on 2 and close the line on the facsimile side. And
After waiting for 0.5 seconds in S98, the P relay 12 and the CML relay 11 are turned off to open the line in S99, the incoming call process is terminated, and the process returns to the standby.

Now, in S72, the Caller I
If the D data is not detected or is not detected, the process proceeds to S88, the CML relay 11 is turned off,
The pseudo CI is sent to the child phone. This is to connect to the operator on the child telephone side without letting him know if the other party is, and to let the operator decide whether to receive a telephone call or a facsimile.

[0076]

As described above, according to the present invention,
If the caller ID data is not detected properly, the line is connected to the telephone side so that the operator can receive it if the other party's telephone number is unknown.
The effect is that you can choose not to.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a communication system in an embodiment of the present invention.

FIG. 2 is a block diagram showing the overall configuration of the above embodiment.

FIG. 3 is an explanatory diagram showing an example of a signal sequence in the Caller ID service of the above embodiment.

FIG. 4 is an explanatory diagram showing a signal sequence example in a Caller ID service according to another embodiment of the present invention.

FIG. 5 is a flowchart showing an operation at the time of standby in the above embodiment.

FIG. 6 is a flowchart showing an off-hook processing operation of the above embodiment.

FIG. 7 is a flowchart showing an incoming call processing operation of the above embodiment.

FIG. 8 is a flowchart showing an incoming call processing operation of the above embodiment.

FIG. 9 is a flowchart showing a call processing operation of the above embodiment.

FIG. 10 is a flowchart showing an operation during standby of the other embodiment.

FIG. 11 is a flowchart showing an incoming call processing operation of the other embodiment.

FIG. 12 is a flowchart showing an incoming call processing operation of the other embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Reading part, 2 ... Recording part, 3 ... Operation part, 4 ... Control part, 5 ... Modem, 6 ... Tone detection part, 7 ... DTMF detection part, 8 ... NCU, 9 ... Telephone, 10 ... Line, 11 ... CML relay, 12 ... P relay, 13 ... Pseudo-inductance, 14 ... S relay, 15 ... Capacitor, 16 ... Transformer, 17 ... 2-wire 4-wire conversion circuit, 18 ... CI detection circuit, 19 ... CNG detection circuit, 20 ... DTMF Detection circuit, 21 ... H relay, 22 ... Pseudo CI / slave telephone power supply circuit, 23 ... Off-hook detection circuit, 24 ... Polarity detection circuit.

Claims (2)

[Claims] 1. A mobile telephone having a sub-telephone connection terminal and Ca
A data communication device compatible with the ller ID service, a detection means for detecting signals and data of the caller ID service; a switching means for switching the line between the communication device and the sub-telephone; In the standby state, the sub-telephone side is disconnected from the line in the separating means, and when the detecting means fails to detect the telephone number of the other party, the line is connected to the sub-phone side. A data communication device characterized in that 2. Having a sub-telephone connection terminal and Ca
A data communication device compatible with the ller ID service, including first detection means for detecting signals and data of the caller ID service; switching means for switching the line between the communication device and the telephone; and disconnecting the slave telephone connection terminal from the line. Separating means; second detecting means for detecting off-hook of the sub-telephone; and calling signal sending means for sending a calling signal; If the telephone number of the other party is not detected by the first detecting means, the pseudo-call signal is sent from the calling signal sending means to the sub-phone and the off-hook of the sub-phone is detected. A data communication device, characterized in that the device is connected to the sub-phone side.