JP2000022853A - Communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication equipment which can select by which device the detection sequence of a calling side telephone number is to be executed and can previously prevent malfunction and detection impossibility at the time of connecting the communication equipment having a function of detecting a plurality of calling side telephone numbers to one telephone line. SOLUTION: A function for previously selecting whether the detection sequence of a caller telephone number is to be executed by using an outer communication equipment or the detection sequence of the caller telephone number is to be executed by using the communication equipment is provided. The detection sequence of the caller telephone number is executed by outer communication equipment or the communication equipment based on the selection. Thus, the appropriate matching of a line impedance can easily be obtained and caller telephone number notice service can efficiently be received. Then, the detection sequence of the caller telephone number by the outer communication equipment from the communication equipment is monitored and therefore the caller telephone number can be detected/displayed even in the communication equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device connected to a telephone line for notifying a telephone number of a caller, and more particularly to a communication device having a connection terminal for an external communication device.

[0002]

2. Description of the Related Art Conventionally, in a communication apparatus of this type, a typical use of a calling telephone number transmitted from an exchange is to display a detected calling telephone number on a liquid crystal display unit. was there.

However, when two or more communication devices of this type are connected to one telephone line, if the detecting means tries to detect the calling telephone number, the line impedances do not match, resulting in malfunction. Or, they cannot detect each other. Therefore, in this case, only one of the communication devices could receive the calling telephone number service sent from the exchange.

[0004]

As described above, in the conventional communication apparatus, it is impossible to connect two or more communication apparatuses having means for detecting a calling telephone number to one telephone line. was there.

Further, in the case of a communication device that can invalidate the means for detecting the calling telephone number, it is possible to connect two or more such communication devices to one telephone line by disabling the function. Although possible, the detection and display of the calling telephone number has the disadvantage that only one communication terminal can be used.

Accordingly, the present invention relates to a case where a communication apparatus having means for detecting a plurality of calling telephone numbers is connected to one telephone line, and which detecting means is used to detect a calling telephone number. It is an object of the present invention to provide a communication device capable of performing the selection or switching.

Further, according to the present invention, when a communication apparatus having a plurality of calling telephone number detecting means is connected to one telephone line, the calling telephone number is detected by using the detecting means of one communication apparatus. It is an object of the present invention to provide a communication device capable of performing the detection sequence described above, monitoring the detection sequence, and detecting and displaying the calling telephone number.

[0008]

That is, the present invention relates to a communication apparatus which is connected to a telephone line for notifying a telephone number of a calling side and has connection means for connecting an external communication apparatus. Detection means for detecting the detected caller telephone number, display means for displaying the detected caller telephone number, and an external communication device having a caller telephone number detection means in the connection means for the external communication device. When connected, select whether to perform a caller telephone number detection sequence using the detection means of the communication device or a caller telephone number detection sequence using the detection means of the external communication device. Selection means for selectively switching.

Further, the present invention relates to a communication apparatus connected to a telephone line for notifying a telephone number of a calling side and having connection means for connecting an external communication apparatus, wherein the calling party telephone notified from the telephone line is provided. Detecting means for detecting the number;
Display means for displaying the detected caller telephone number and an external communication device having a caller telephone number detection means are connected to the connection means for the external communication device, and a call is made using the detection means of the external communication device. Monitoring means for monitoring the detection sequence when a caller telephone number detection sequence is performed, wherein the caller telephone number detected by the detection means of the external communication device is detected by the monitor means of the communication device And
The detected caller telephone number is displayed on the display means.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing a configuration of a facsimile apparatus which is an embodiment of a communication apparatus according to the present invention.

The CPU 1-1, according to a program stored in the ROM 1-2, controls the entire facsimile apparatus.
That is, the RAM 1-3, the nonvolatile RAM 1-4, the operation unit 1-5, the display unit 1-6, the image processing unit 1-7, the reading unit 1-8, the recording unit 1-9, the driving unit 1-10, and the modem 1 -1
1, a central processing unit that controls the NCU unit 1-12, the sensor unit 1-14, and the like.

The RAM 1-3 is a readable and writable memory composed of a DRAM. The RAM 1-3 is an image data obtained by the reading unit 1-8 via the image processing unit 1-7, or a recording unit 1-9. , And further stores binarized data output from the subscriber line 1-15 via the NCU unit 1-12 with the signal modulated by the modem 1-11. . Also, RA
M1-3 is also used to demodulate an analog signal input from the subscriber line 1-15 by the modem 1-11 via the NCU unit 1-12 and store the binarized data.

The non-volatile RAM 1-4 is an SRAM backed up by a battery or the like, and stores telephone numbers unique to the apparatus, data such as user abbreviations, telephone numbers such as speed dials, and communication results. Used to store calling telephone number.

An operation unit 1-5 includes a start key for transmission and reception, a numeric keypad for inputting a telephone number and a number, a speed dial key, a mode key for designating operation modes such as fine and standard in a transmitted image, and a mode key for copying. It is composed of a copy key, a stop key for clearing various operations, an ID detection switching key described later, and the like. In addition, CPU
1-1 detects the pressed state of these keys and controls each unit according to the detected state.

The display section 1-6 is composed of a dot matrix type LCD (liquid crystal display) and an LCD driver, and performs various displays under the control of the CPU 1-1.

The image processing section 1-7 comprises a clock supply circuit for controlling the reading section 1-8, a peak hold circuit, a shading correction circuit, an A / D conversion circuit, a DMA controller, and the like. The obtained image data is subjected to binary, 16-gradation, and 64-gradation image processing, and the processed image data is transferred to the RAM 1-3.

The reading section 1-8 includes photoelectric conversion means such as a CCD or a contact image sensor (CS).
Under the control of the CPU 1-1, image data obtained by reading a document using a CCD or a CS is sequentially processed by an image processing unit 1.
-7.

The recording unit 1-9 comprises a DMA controller, B
4 / A4 size thermal head or BJ printer head (bubble jet printer head) and general-purpose IC
The RA is controlled by the CPU 1-1.
The recording data stored in M1-3 is taken out and printed out as a hard copy.

The driving unit 1-10 controls a stepping motor for driving the paper feeding and discharging rollers of the reading unit 1-8 and the recording unit 1-9, a gear for transmitting the driving force of the motor, and a motor. And a driver circuit.

The modem 1-11 has a 34, V.I. 32,
V. 32 bis, V.I. 17, V.I. 29, V.I. 27te
r, V.R. 23, V.I. 21 (H, L) modems and a clock generation circuit and the like connected to these modems.
The transmission data stored in the RAM 1-3 is modulated based on the control of the CPU 1-1 and output to the subscriber line 1-15 via the NCU 1-12.

Further, the modem 1-11 is connected to the subscriber line 1-
15 is introduced through the NCU unit 1-12, and is demodulated and binarized.
Is to be stored.

Also, according to ITU-T Recommendation V. A calling telephone number is detected from an information signal conforming to H.23.

The NCU 1-12 comprises a DC capturing circuit, an AC capturing circuit, a Ci (call signal) detecting circuit, a line polarity reversing detecting circuit, a 2-wire 4-wire converting circuit, and the like. -15 is connected to the modem 1-11.

Further, an external telephone 1-13 described later can be connected to the subscriber line 1-15. Subscriber line 1-1
Reference numeral 5 denotes a public telephone line connected to the NCU 1-12.

The sensor section 1-14 includes a recording paper width sensor, a recording paper presence / absence sensor, a document width sensor, a document presence / absence sensor, and the like, and detects the state of the document and the recording paper under the control of the CPU 1-1.

FIG. 2 shows an NCU 1-12 according to the present invention.
3 is a circuit diagram showing a more detailed configuration of FIG.

The Ci signal detection circuit 1-12-1 is a circuit for detecting a Ci signal indicating an incoming call from the exchange, and notifies the CPU 1-1 that the Ci signal has been detected. When the calling telephone number is detected, an ID receiving terminal activation signal sent from the exchange via the subscriber line is detected and notified to the CPU 1-1.

The surge absorber 1-12-2 is for removing external noise inserted between lines. The CML relay 1-12-3 is a relay for switching a line between an external telephone and a modem.

The RET coil 1-12-4 is a coil for capturing a line with direct current. Hybrid transformer 1
-12-7 separates a line into a primary side and a secondary side.

The ringer circuit 1-12-13 sounds in response to the Ci signal, and the switch 1-12-14 turns ON / OFF between the line 1-15 and the ringer circuit 1-12-13.
This is for turning off. Switch 1-12-15
Is for disconnecting the external telephone 1-13 from the line 1-15.

The monitor circuit 1-12-16 is connected to the modem 1-
11 is a circuit for monitoring a communication signal,
Detects call current and sets hook state of telephone 1-13 to CP
This is a circuit for notifying U1-1. Polarity inversion detection circuit 1-
Reference numeral 12-17 is for detecting the polarity inversion of the line.

In addition, this circuit includes a capacitor 1-12-
5, varistor 1-12-6, resistor 1-12-8, 9, 1
0, operational amplifiers 1-12-11, 12 and the like.

FIGS. 3 and 4 are flowcharts showing the operation of this embodiment. Hereinafter, the operation of the present embodiment will be described.

First, after turning on the power of the facsimile machine,
The CPU 1-1 performs various initial settings according to the program in the ROM 1-2, and enters a standby state. That is, the switches 1-12-14 and 1-12-15
Is turned off, the CML relay 1-12-3 is initialized to the [0] side, and the apparatus enters a standby state.

In this embodiment, as a default of the initial setting at the time of turning on the power, a setting is made such that a detection sequence of a caller telephone number (hereinafter referred to as a calling ID) from a line is performed on the facsimile apparatus side. Will be described as an example.

Next, from the standby state, step S1
, An external telephone call I provided in the operation unit 1-5
Either perform the source ID detection sequence using the D detection means,
It is determined whether or not the ID switching key for switching is used to determine whether to perform the calling ID detection sequence using the detecting means of the facsimile apparatus.

If the ID switch key has been pressed, it is determined in step S2 which of the detection sequences is currently set for use. If the default is set to the facsimile machine side in the initial setting, the switch 1-12 is set in step S4.
-15 on, switches 1-12-14 off, CML
The relay 1-12-3 is set to the [0] side, and the mode is switched to the mode using the detection sequence of the external telephone.

If it is determined in step S2 that the mode uses the detection sequence of the external telephone, the process proceeds to step S3 in which the switches 1-12-15,
Turn off switch 1-12-14, CML relay 1-12
-3 is set to the [0] side, and the mode is switched to the mode using the detection sequence of the facsimile apparatus.

After setting the mode in steps S3 and S4,
Alternatively, if the switching key is not pressed in step S1, the polarity of the telephone line is detected in step S5, and if there is no polarity inversion, the process returns to step S1.
When the polarity inversion is detected, in step S6,
It is determined which detection sequence is set to use the mode.

Here, in the case of the mode in which the external telephone detects, the ID receiving terminal activation signal is transmitted from the telephone line in step S7. Since the ID receiving terminal activation signal is a signal in which the ON / OFF interval of the normal Ci pattern is different, the sampling interval of the CPU 1-1 is switched by software using the Ci signal detection circuit 1-12-1. Can be detected.

In step S7, when the ID receiving terminal activation signal is detected, in step S8, the path from the monitor circuit 1-12-16 to the RX input of the modem 1-11 is enabled, and the detection sequence of the calling ID of the external telephone is detected. Start monitor monitoring for.

Next, in step S9, the ITU-T Recommendation V.V. The modem 1-11 detects an ID generated by a modem signal conforming to H.23 through the monitor circuit 1-12-16. When the caller ID is detected, in step S10, the LC of the display 1-6 is displayed.
In D, the detected caller telephone number is displayed.

When the call signal Ci from the line is detected in step S11, the switch 1-12-14 is turned on, and the Ci signal from the line is connected to the ringer circuit 1-12-13. The ringer circuit 1-12-13 sounds.

In the above steps, both the external telephone and the facsimile apparatus ring and the calling ID is displayed.

In response to the incoming call, in step S13, the operator determines whether or not the call is received (off-hook). If the call is not off-hook, in step S14, the process waits for the caller to abandon the call and returns to standby. .

In step S13, if the user goes off-hook, in step S15, if the calling side is a facsimile machine, in step S13, if the user is off-hook with the handset of the facsimile machine, in step S17, the operation unit Press the start key of 1-5, perform normal facsimile reception operation,
Return to standby.

If the external telephone is off-hook, the CNG signal from the line is detected through the monitor circuit 1-12-16 in step S17, the CML relay is switched to the [1] side, and a normal facsimile reception operation is performed. And return to standby.

If it is determined in step S15 that the calling side is a telephone, in step S16, the call is made using the off-hook terminal of the facsimile apparatus or the external telephone, and the process returns to the standby state.

Next, in step S6, if the facsimile apparatus is in the mode for detecting the calling ID, in step S18, an ID receiving terminal activation signal is detected from the telephone line. As described above, since the ID receiving terminal activation signal is a signal in which the ON / OFF interval of the normal Ci pattern is different, it is detected using the Ci detection circuit 1-12-1.

When the ID receiving terminal activation signal is detected, in step S19, the primary response signal is returned to the exchange by switching the CML relay 1-12-3 to the [1] side and capturing DC.

Upon receiving the primary response signal, the exchange receives the ITU-T recommendation V.10 in step S20. Since the calling ID is transmitted via a telephone line in accordance with a modem signal conforming to H.23, the calling ID is detected by the modem 1-11.

After detecting the source ID, in step S21,
By switching the CML relay 1-12-3 to the [0] side to release the line, a reception completion signal is returned to the exchange. In step S22, the caller telephone call detected on the LCD of the display unit 1-6 Display the number.

In step S23, the detected calling ID is compared with a telephone number such as a speed dial registered in the nonvolatile RAM 1-4. In step S24, of the telephone numbers registered in the RAMs 1-4, F
If it matches the AX number, in step S25,
After detecting the call signal Ci sent from the line, in step S26, the CML relay 1-12-3 is switched to the [1] side to capture the line, and the normal facsimile receiving operation is performed without ringing the Ci. To return to the standby state.

In step S24, if the collation result does not match the fax number, in step S27, after detecting the call signal Ci sent from the line,
In step S28, the switches 1-12-14 and 1-12-15 are turned on, and the ringer circuit 1-12-13 and the external telephone are made to ring for Ci.

In step S29, the operator determines whether or not the call is received (off-hook). If the call is not off-hook, in step S33, the process returns to standby after waiting for the caller to abandon the call.

In step S29, if the user goes off-hook, in step S30, if the calling side is a facsimile machine, if the caller is off-hook in the handset of the facsimile machine, in step S32, the operation unit 1-5 is started. Press the key to perform a normal facsimile reception operation and return to standby.

Also, if the user is off-hook on an external telephone,
In step S32, a CNG signal from the line is detected through the monitor circuit 1-12-16, and the CML relay 1
-12-3 is switched to the [1] side to perform a normal facsimile reception operation and return to standby.

If it is determined in step S30 that the calling side is a telephone, then in step S31 the user talks on the off-hook side of the facsimile apparatus handset or external telephone, and returns to the standby state.

Although the combination of the facsimile apparatus and the telephone has been described above as an example of the communication apparatus and the external communication apparatus, another communication apparatus may be combined.

[0060]

As described above, according to the present invention,
It is possible to select whether to perform a caller telephone number detection sequence using the detection means of the external communication device or a caller telephone number detection sequence using the communication device detection means. It is possible to easily connect two or more communication devices to one telephone line, and it is possible to prevent malfunction or undetection of the communication device beforehand.

Further, according to the present invention, by monitoring the detection sequence of the caller telephone number by the external communication device, the communication device can detect and display the caller telephone number. Even when two communication devices are connected to one telephone line, there is an effect that both the communication device and the external communication device can receive the calling telephone number service transmitted from the exchange.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a circuit diagram showing a configuration of an NCU unit in the embodiment.

FIG. 3 is a flowchart showing the operation of the embodiment.

FIG. 4 is a flowchart showing the operation of the embodiment.

[Explanation of symbols]

 1-1 CPU, 1-2 ROM, 1-3 RAM, 1-4 nonvolatile RAM, 1-5 operation unit, 1-6 display unit, 1-7 image processing unit, 1- Reference numeral 8: reading unit, 1-9: recording unit, 1-10: driving unit, 1-11: modem, 1-12: NCU unit, 1-13: external telephone, 1-14: sensor unit, 1-15 ... Subscriber line.

Claims (8)

[Claims] 1. A communication device connected to a telephone line for notifying a telephone number of a calling side and having a connection means for connecting an external communication device, wherein a caller telephone number notified from the telephone line is detected. Detecting means for detecting a caller telephone number detected, and a display means for displaying the detected caller telephone number; and an external communication apparatus having a caller telephone number detection means connected to the connection means of the external communication apparatus. Selection means for selectively switching between performing a caller telephone number detection sequence using the detection means of the above and a caller telephone number detection sequence using the detection means of the external communication device. A communication device characterized by the above-mentioned. 2. The communication device according to claim 1, wherein the communication device is a facsimile device, and the external communication device is a telephone. 3. A communication device connected to a telephone line for notifying a telephone number of a calling side and having connection means for connecting an external communication device, wherein a caller telephone number notified from the telephone line is detected. Detecting means for detecting the caller's telephone number, an external communication device having a caller's telephone number detecting means connected to the connection means for the external communication device, and detecting the external communication device. Monitoring means for monitoring the detection sequence when the detection sequence of the caller telephone number is performed by using the means, and the communication device A communication means for detecting the caller's telephone number on the display means. 4. The communication device according to claim 3, wherein the communication device is a facsimile device, and the external communication device is a telephone. 5. A control method for a communication device connected to a telephone line for notifying a telephone number of a calling side and having a connection means for connecting an external communication device, wherein the calling party telephone notified from the telephone line is provided. A detection step of detecting a number, a display step of displaying the detected caller telephone number, and when an external communication device having a caller telephone number detection step is connected to the connection means of the external communication device, A selection step of selectively switching between performing a caller telephone number detection sequence using the detection step of the present communication device and performing a caller telephone number detection sequence using the external communication device detection step; A method for controlling a communication device, comprising: 6. The method according to claim 5, wherein the communication device is a facsimile device, and the external communication device is a telephone. 7. A control method of a communication device connected to a telephone line for notifying a telephone number of a calling side and having a connection means for connecting an external communication device, wherein the calling party telephone notified from the telephone line is provided. A detection step of detecting a number, a display step of displaying the detected caller telephone number, and an external communication device having a caller telephone number detection step connected to the connection means of the external communication device, wherein the external communication A monitoring step of monitoring the detection sequence when the detection sequence of the caller telephone number is performed by using the detection step of the device, wherein the caller telephone number detected by the detection step of the external communication device is A method for controlling a communication device, comprising: detecting a caller telephone number detected by a monitor process of the communication device; and displaying the detected caller telephone number by the display process. 8. The method according to claim 7, wherein the communication device is a facsimile device, and the external communication device is a telephone.