JP2003264641A - Communication device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To prevent a malfunction such as erroneously detecting a signal component similar to a facsimile activation signal as a facsimile activation signal during a telephone call with the other party and automatically shifting to a facsimile document reception state. Facsimile machine capable of performing SOLUTION: The facsimile apparatus has a public telephone line 30.
And a main unit 1 of the facsimile apparatus as a master unit having a facsimile transmission / reception function, and a slave unit 31 wirelessly connected to the main unit 1. The handset 31 is provided with a manual operation key 36 that cuts off noise and makes it possible to detect a facsimile activation signal. When the facsimile is started and the facsimile activation signal arrives, the CPU 25 can receive the facsimile.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication apparatus including a master unit connected to an external communication line and having a facsimile transmission / reception function, and a slave unit wirelessly connected to the master unit. The present invention relates to a communication device that can reliably detect a facsimile activation signal that activates a facsimile transmission / reception function.

[0002]

2. Description of the Related Art In recent years, a communication device of a type having both a master unit connected to an external communication line and a slave unit wirelessly connected to the master unit has appeared. In that case, since the master unit has a facsimile transmission / reception function and a call function, and the slave unit has only a call function, the user can perform facsimile transmission / reception and a call at the master unit, and can also make a call from the slave unit. You can By the way, there is a case where a facsimile document is received from the other party during a conversation using a cordless handset that is different from the base unit, in which case the user bothers to come to the base unit and press the start key. Since it had to be received by facsimile, it was troublesome.

[0003]

Some recent communication devices have a function of detecting a facsimile activation signal (CNG signal) for activating a facsimile transmission / reception function during a call with the other party. In the case of the communication device, when a facsimile activation signal transmitted from the other party is detected during a call, the state automatically shifts to the state of receiving a facsimile original, so the master key is pressed every time a facsimile original is received. You can save the trouble of having to come to the office and receive a facsimile. However, in the case of a communication device having a function of detecting a CNG signal during a call, even if the CNG signal is not transmitted from the other party, noise having a signal component similar to that of the CNG signal is detected by the C
It may be erroneously detected as an NG signal. Then, during a call with the other party, the facsimile document may be automatically received, which may surprise the user during the call. The present invention has been made in view of the above problems, and an object of the present invention is to erroneously detect a signal component similar to a facsimile activation signal as a facsimile activation signal during a call with the other party, thereby making a facsimile original document. An object of the present invention is to provide an excellent communication device capable of preventing a malfunction such as automatically shifting to the reception state of.

[0004]

In order to achieve the above object, in the communication device according to claim 1, a base unit connected to an external communication line and having a facsimile transmission / reception function,
In a communication device comprising a master unit and a slave unit wirelessly connected to the master unit, the master unit includes detection means for detecting the arrival of a facsimile start signal, and noise is generated during a call with the other party via the external communication line. The master unit or the slave unit is provided with a manual operation member for cutting off the facsimile activation signal so that the facsimile activation signal can be detected when the manual operation member is operated When it is detected, a control means for making the facsimile receivable state provided is provided. As a result, when the manual operation member is operated during a call with the other party, the noise is cut off and the facsimile activation signal can be detected. Therefore, noise having a signal component similar to that of the CNG signal is generated.
It is possible to prevent an erroneous operation such as automatically shifting to a receiving state of a facsimile original, since the G signal is not erroneously detected. When the manual operation member is operated, the facsimile start signal is surely detected, and it is possible to shift to the facsimile receiving state. Here, the “substantially cut off noise” may include, for example, a mode in which a voice input via the microphone of the slave unit or the master unit is blocked based on the operation of the manual operation member. This is because the voice input through the microphone of the slave unit or the master unit may include the same signal component as the facsimile start signal, so the same signal component as the facsimile start signal is erroneously detected as the facsimile start signal. This is to prevent an erroneous operation such as automatically shifting to the reception state of the facsimile original.

Further, the control means can receive a facsimile when a facsimile activation signal arrives within a predetermined time after the manual operation member is operated. The control means operates the manual operation member. It is desirable to be able to return to the communication state with the other party via the external communication line when the facsimile activation signal does not arrive within a predetermined time later. In this way, after operating the manual operation member, after a predetermined time,
Blocking input such as noise (blocking voice input via microphone)
Even if the user mistakenly operates the manual operation member, the voice input via the microphone will be blocked and the call will be temporarily disabled, but it will be possible to call again and it will be easy to use. Is improved.

Further, the control means can receive a facsimile when a facsimile activation signal arrives within a predetermined time after the manual operation member is operated. The control means operates the manual operation member. After that, if the facsimile activation signal does not arrive within a predetermined time, it is desirable to end the communication state with the other party via the external communication line. As a result, the state of talking with the other party via the external communication line is terminated after a predetermined time has passed after the manual operation member was operated, so the operation of ending the conversation state after the operation of the manual operation member is unnecessary, and usability is improved. To do.

Further, in the parent device, it is desirable that the control means keep the detection means in the detection state at all times. In the case of such a configuration, unlike the configuration in which a command is transmitted from the slave side to the master side and the arrival of the facsimile activation signal is detected, the facsimile activation signal of the facsimile activation signal is transmitted even if the command is not transmitted from the slave side to the master side. The arrival can be detected. Then, when configured to send a command from the child device to the parent device,
There is a demerit that noise is mixed at the time of command transmission, and a person on the other end of the call hears an offensive sound, and also has a demerit that a configuration for command processing is newly required. On the other hand, when the detecting means is always in the detection state, the facsimile activation signal can be normally detected in a quiet environment with less noise, and the facsimile activation signal is transmitted from the slave side to the master side. There is an advantage that it is possible to shift to reception without operating the manual operation member.

Further, in a communication device including a master unit connected to an external communication line and having a facsimile transmission / reception function, and a slave unit wirelessly connected to the master unit, the master unit is:
A hand-operated member for detecting the arrival of the facsimile activation signal, wherein the slave unit is in a state capable of detecting the facsimile activation signal in the detection means during a call with the other party via an external communication line. And a command sending control means for sending a command for operating the detecting means from the slave side to the master side based on the operation of the manual operation member. Such command sending control means sends a command based on the operation of the manual operation member to operate the detecting means for detecting the arrival of the facsimile activation signal, and the arrival of the facsimile activation signal during the call with the other party. To be detected. However, when the detection means does not operate based on the operation of the manual operation member during the call with the other party through the external communication line, the arrival of the facsimile start signal or the signal having the same component as the facsimile start signal is not detected. It is possible to prevent an erroneous operation such as automatically shifting to a reception state of a facsimile original without erroneously detecting a signal component similar to the facsimile activation signal as a facsimile activation signal.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a display unit 2 and a large number of buttons (keys) 3 are arranged at the center of the main body 1 of the facsimile apparatus according to the first embodiment. In addition, the main body 1 of the facsimile apparatus is adapted to eject a printing paper (not shown) on which the image information received by facsimile is printed out, and insert a document on which image information to be read is recorded. A document guide portion (not shown) is provided for this purpose.

The display device 2 is composed of, for example, a liquid crystal display or the like. The display 2 has an L-mode gateway installed by NTT and the main body 1 of the facsimile machine.
A message that indicates that the line with is connected (for example, "Communicating") is displayed, or a message that the line connection is disconnected (for example, "Disconnected")
Etc.) or a preset standby screen or the like is displayed. Each button constituting the buttons 3 includes a numeric keypad constituting a dial button, various function buttons for performing each operation (for example, setting / cancellation of an answering machine, speaker reproduction, hold or switching to a handset). E-mail button 3A for operating e-mail, L button 3B for operating L mode, cursor movement button (scroll button) 3C for moving a cursor (not shown) displayed on the display 2 up, down, left and right, facsimile transmission / reception There is a fax start button 3D and the like used when performing an operation regarding.

As shown in FIG. 2, the main body 1 of the facsimile apparatus includes a display unit 2, buttons 3 and a panel GA (Gate A).
rray) 5, motor 6, thermal head 7, scanner 8,
Sensors 9, AFE (Analog Front End) 11, melody IC (Integrated Circuit) 12, speaker 13, R
TC (Real Time Clock) 15, ROM16, RAM1
7, EEPROM 18, high frequency for mobile devices (RF: Radio Fr)
equency) unit 19, cross point switch 2
1, a handset 22, an NCU 23, a CPU 25, a recording circuit 26, a reading circuit 27, a FAX / data modem 28, and the like. A public telephone line 30 as an external communication line is connected to the NCU 23. CPU2
Reference numeral 5 controls the operation of the entire facsimile apparatus including the main body 1 as a master and the slave 31. The CPU 25 includes a recording circuit 26, a reading circuit 27, a panel GA5, a FAX / data modem 28, an AFE11, an RTC15, and a ROM1.
6, a RAM 17, an EEPROM 18, and a slave unit RF unit 19 are connected. FAX / data modem 28
Is equipped with a facsimile activation signal detection unit 28a for detecting the arrival of a facsimile activation signal (CNG signal) from the other party, which alternately repeats an ON signal having a frequency of 1100 Hz of 0.5 seconds and an OFF signal of 3.0 seconds. In the case of this embodiment, the CPU 25 uses the facsimile start signal detection unit 28a.
The facsimile activation signal detection unit 28a always detects the arrival of the facsimile activation signal by operating the call waiting function indicating that there is an incoming call from a third party during a call. You can The CPU 25, the recording circuit 26, the reading circuit 27, the panel GA5, the FAX / data modem 28 are one chip I
It is composed of C29.

The recording circuit 26 controls the operations of the motor 6 and the thermal head 7 which constitute the printer according to the control processing of the CPU 25. The motor 6 is driven to supply and discharge the printing paper to and from the main body 1 of the facsimile apparatus. The thermal head 7 prints on printing paper made of thermal paper. Instead of the thermal head 7, an inkjet head or a laser engine may be used. The reading circuit 27 controls the operation of the scanner 8 under the control of the CPU 25. The scanner 8 reads a character or an image printed on a document and outputs the data of the character or the image to the reading circuit 27. The sensors 9 are composed of various sensors provided in the main body 1, such as a printing paper detection sensor that detects that the printing paper is set, a handset detection sensor that detects that the handset 22 is set, and the like. . The panel GA5 functions as an interface for mediating data signals between the buttons 3 and the display unit 2 and the CPU 25. FAX
The data modem 28 modulates / demodulates facsimile transmission / reception data, and also modulates / demodulates various information in the L mode and transmission / reception data of electronic mail. AFE11
Is the melody IC 12 and the crosspoint switch 21.
The data signal is sampled and converted between the CPU 25 and the FAX / data modem 28.

The melody IC 12 generates a ringing melody for the telephone according to the control processing of the CPU 25, and the speaker 13
To make the ringing melody sound. RTC15
Measures the current time and date, and outputs those data to the CPU 25. The ROM 16 stores various control programs for the CPU 25 to execute various controls and a control processing program to be executed when an input signal indicating that there is an incoming call from a third party is received by the call waiting function. The RAM 17 provides a work area for the CPU 25 and a development area for various data. The EEPROM 18 is a telephone number of a transmission destination of a telephone or a facsimile, a transmission destination of an electronic mail, and a URL of various communication devices connected to an internet network (not shown) connected via an L-mode gateway.
(Uniform Resource Locator) and the like are stored. The cordless phone RF unit 19 connects the cordless phone cordless handset 31 and the parent device body 1 through a wireless line.
Under the control of the CPU 25, a control data signal is wirelessly transmitted / received to / from the child device 31 in addition to the audio signal. The cross point switch 21 includes the RF unit 19 for the handset and the NC.
U23, handset 22 consisting of telephone handset, A
The data signal transferred between each of the FEs 11 is switched and mediated. The NCU 23 is connected to the public telephone line 30 to perform network control, sends a dial signal to the public telephone line 30, and responds to a calling signal from the public telephone line 30.

As shown in FIG. 3, the cordless phone slave unit 31 includes an earpiece 32, a liquid crystal display 33, buttons 34 including dial buttons, and a microphone port 35.
Is equipped with. The buttons 34 are provided with a manual operation key 36 for cutting off noise input. As shown in FIG. 4, the cordless phone slave unit 31 includes a speaker 37, a microphone 38, buttons 34, and a panel GA (Gate Arr).
ay) 40, display 41, high frequency for the base unit (RF: Radio Fr)
unit) 42, ROM 43, RAM 44, E
An EPROM 45, a CPU 46, etc. are provided. CP
U46 controls the operation of the entire call of the child device 31. RO
M43 stores various control programs for the CPU 46 to execute various controls and a control processing program to be executed when an input signal indicating that there is an incoming call from a third party is received by the call waiting function. The CPU 46 can control the microphone 38, and can block (mute) or allow the user's voice input via the microphone 38. Therefore, when the manual operation key 36 is in the ON state, the voice input of the user can be blocked via the microphone 38, and the facsimile activation signal detection unit 28a of the main body 1 can be blocked.
Does not input the user's voice through the microphone 38, so that the facsimile activation signal can be detected without noise. The RAM 44 provides a work area for the CPU 46 and a development area for various data. Under the control of the CPU 46, when the user's voice input is cut off (mute) via the microphone 38, a predetermined time (for example, 4
It is possible to set mute only for about a second), and it functions as a mute timer 44a. EEPROM45
Stores the telephone number of a telephone or facsimile destination, the destination of electronic mail, and the like. High frequency unit 4 for base unit
Under the control of the CPU 46, the reference numeral 2 transmits and receives a data signal in addition to a voice signal between the cordless phone slave unit 31 and the main body 1 of the facsimile machine as a master unit through a wireless line.

Next, a process for detecting a facsimile activation signal during a call of the handset 31 in the facsimile apparatus according to the first embodiment will be described with reference to FIG. As shown in FIG. 5, in step (hereinafter abbreviated as S) 1, the CPU 46
Determines whether the manual operation key 36 of the child device 31 has been operated. When the manual operation key 36 is operated during the call (S1: YES), the CPU 46 at S2
The mute setting of the transmission via the microphone 38 of the handset 31 is performed (S2). Then, the operation of the mute timer 44a starts (S3), and during the set time of the mute timer 44a, which is a predetermined time (for example, about 4 seconds) after the manual operation key 36 is operated, the handset 31 side operates via the microphone 38. Since the input voice signal is not transmitted to the main body 1 of the facsimile machine which is the master unit, noise having a signal component similar to that of the CNG signal included in the voice signal is not erroneously detected as the CNG signal. As a mode of blocking noise, for example, a mode of blocking a voice input through the microphone 38 of the slave unit 31 is included. The voice input through the microphone 38 of the slave unit is similar to the facsimile start signal. This is to prevent a signal component similar to the facsimile activation signal from being erroneously detected as a facsimile activation signal. On the other hand, since voice input cannot be performed via the microphone 38 of the child device, a situation may occur in which a call cannot be made with the other party. Therefore, the mute time by operating the manual operation key 36 should be as short as possible.

Next, it is determined whether or not the mute timer 44a has timed out (S4). When it is determined that the mute timer 44a has timed out (S4: YE
S), the handset 31 cancels the mute setting of the transmission via the microphone 38 (S5). Since the mute is released after a fixed time (for example, about 4 seconds), even if the user mistakenly operates the manual operation key 36, the call cannot be temporarily made, but the time is up, After a certain period of time, the call with the other party can be restored. When it is determined that the mute timer 44a has not timed out (S4: NO), the main body 1 of the facsimile machine, which is the parent machine, determines whether or not to detect the facsimile activation signal (S6). When a CNG signal is detected (S6:
YES), the CPU 25 can perform facsimile reception. When the CNG signal is not detected (S6: NO),
It is judged whether or not the call is ended, and the state of the call with the other party through the public telephone line 30 is restored. When the call is not ended (S7: NO), the process returns to S1, and when the call is ended (S7: YES), the main body 1 of the facsimile device, which is the master unit, ends this flowchart. Therefore, if the facsimile activation signal does not arrive within a predetermined time after the manual operation key 36 is operated, the communication state with the other party via the public telephone line 30 is terminated. As explained in detail above,
According to the facsimile device of the first embodiment, the facsimile device is connected to the public telephone line 30 and includes the main body 1 of the facsimile device as a master device having a facsimile transmission / reception function, and the slave device 31 wirelessly connected to the main body 1. In the apparatus, the main body 1 as a master unit includes a facsimile activation signal detection unit 28a that detects the arrival of a facsimile activation signal, and a manual operation key 36 that blocks noise and makes the facsimile activation signal detectable. In preparation for 31, the voice input via the microphone 38 is cut off for a predetermined time after the manual operation key 36 of the handset 31 is operated during a call with the other party via the public telephone line 30, and a facsimile start signal is generated. It is possible to accurately detect the arrival of the facsimile activation signal by blocking noise including similar signal components.
Therefore, when the CPU 25 receives a facsimile, the facsimile activation signal detection unit 28a causes the noise having the same signal component as the CNG signal included in the voice signal to be CNG.
The signal is not erroneously detected, and the detection accuracy of the CNG signal is improved.

Next, a process for detecting a facsimile activation signal (CNG signal) during a call of the handset 31 in the facsimile apparatus according to the second embodiment will be described. Since the entire configuration and control circuit configuration of the facsimile apparatus according to the second embodiment are almost the same as those of the facsimile apparatus according to the first embodiment, the facsimile apparatus main body 1 and slave unit 31 according to this embodiment are The same reference numerals are given and detailed description is omitted. However, the facsimile apparatus according to the second embodiment is different from the facsimile apparatus according to the first embodiment in the processing when detecting the facsimile activation signal during a call. That is,
As shown in the flowchart of FIG. 5, the main body 1 of the above-mentioned facsimile apparatus includes a facsimile start signal detecting section 2
8a constantly detects the facsimile activation signal, the facsimile apparatus according to the other embodiment operates the manual operation key 36 during a call using the cordless handset 31 as shown in the flowchart of FIG. In this case, when the CNG signal detection start command is transmitted from the child device 31 to the main body 1 side of the facsimile device as the parent device, the facsimile activation signal detection unit 28a is configured to detect the facsimile activation signal for a predetermined time. Has been done. Therefore, when the manual operation key 36 is operated, the handset 31 in this embodiment is configured not to set the mute but to send the detection start command of the facsimile start signal. However, if necessary, the handset 31 may be configured to both set mute and send a facsimile start signal detection start command.

Specifically, as shown in FIG. 6, the main body 1 of the facsimile apparatus of this embodiment has a display unit 2, buttons 3, a panel GA 5, a motor 6, a thermal head 7,
Scanner 8, sensors 9, AFE 11, melody IC1
2, speaker 13, RTC15, ROM16, RAM1
7, EEPROM 18, high-frequency unit for child device 19, cross point switch 21, handset 22, NCU
23, CPU 25, recording circuit 26, reading circuit 27, FA
It is the same as the facsimile apparatus shown in FIG. 2 in that it includes an X data modem 28 and the like. However, it differs from the facsimile apparatus according to the first embodiment in that the RAM 17 operates as the timer T1. In addition, as shown in FIG. 7, the cordless phone slave unit 31 includes a speaker 37, a microphone 38, buttons 34, a panel GA 40, a display 41, and the like.
High frequency unit 42 for the base unit, ROM43, RAM44,
It is the same as the child device 31 shown in FIG. 4 in that it has an EEPROM 45, a CPU 46, etc., but differs in that the RAM 44 does not have a mute timer 44a.

As shown in FIG. 8, in step (hereinafter abbreviated as S) 11, during the call of the handset 31, the handset 3 is connected.
The CPU 46 of No. 1 determines whether or not the manual operation key 36 of the child device 31 has been operated. When the manual operation key 36 is operated during the call (S11: YES), the CPU 46 sends a CNG signal detection start command from the handset 31 to the main body 1 of the master facsimile machine in S12 (S12). ). Then, after setting the CNG signal detection mode (S13), the operation of the detection timer T1 of the detection start command is started (S14), and the master unit is operated for a predetermined time (for example, about 4 seconds) after the manual operation key 36 is operated. On the side of the main body 1 of the facsimile apparatus, the facsimile activation signal detection unit 28a brings the facsimile activation signal into the detection state. Therefore, since the facsimile activation signal detection unit 28a does not always detect the facsimile activation signal, the noise is generated as CNG.
It will not be erroneously detected as a signal.

C of the main body 1 of the facsimile machine which is the master unit
The PU 25 determines whether or not the mode is for detecting a facsimile start signal (S15). When the CPU 25 determines that it is in the mode for detecting the facsimile start signal (S
15: YES), it is determined whether or not a facsimile activation signal is detected (S16). When it is determined that the facsimile activation signal is detected (S16: YES), the CPU 25 can receive the facsimile (S17). When it is determined that the facsimile activation signal is not detected by the facsimile activation signal detection unit 28a during the call (S16: N
O), it is determined whether or not the detection timer T1 times out (S18). When it is determined that the detection timer T1 does not time out (S18: NO), the process returns to S16.
When it is determined that the time measurement of the detection timer T1 has timed out (S18: YES), the mode for detecting the facsimile activation signal is canceled (S19). Next, it is determined whether or not the call is ended (S20). When the call is not ended (S20: NO), the process returns to S11, and when the call is ended (S20: YES), the main body 1 of the facsimile device, which is the parent device, ends this flowchart.

As described in detail above, according to the facsimile device as the master device of the second embodiment, the main body 1 and the main body of the facsimile device as the master device which is connected to the public telephone line 30 and has the facsimile transmission / reception function. In a facsimile apparatus including a slave unit 31 wirelessly connected to the main unit 1, the main body 1 serving as a master unit includes a facsimile activation signal detection unit 28a that detects arrival of a facsimile activation signal, and the slave unit 31 includes the manual operation unit. The operation key 36 and the manual operation key 36 from the slave unit 31 side to the main body 1 side.
Since the CPU 46 for sending the command for operating the facsimile activation signal detection unit 28a for detecting the arrival of the facsimile activation signal based on the operation of is provided, the cordless handset is provided during a call with the other party via the public telephone line 30. When the facsimile activation signal arrives within a predetermined time after the manual operation key 36 of 31 is operated, the CPU 25 can receive the facsimile. When the manual operation key 36 of the handset 31 is operated during a call with the other party in this way, the CNG is transferred from the handset 31 to the main body 1 of the master facsimile machine under the control of the CPU 46. Since the signal detection start command is transmitted, the facsimile activation signal detection unit 28a is operated for a predetermined time after the manual operation key 36 is operated.
The facsimile start signal is detected and the facsimile start signal is not detected at all times. Therefore, the facsimile activation signal detector 28a does not erroneously detect noise having a signal component similar to that of the CNG signal included in the voice signal as the CNG signal, and the detection accuracy of the CNG signal is improved. In addition, based on the operation of the manual operation key 36 of the child device 31,
In addition to sending the CNG signal detection start command, mute may be set. The present invention is not limited to the first embodiment or the second embodiment, and it goes without saying that various improvements and modifications can be made without departing from the gist of the present invention. For example, as shown in FIG. 9, a manual operation key 47 is arranged in the main body 1 of the master side facsimile device, and when the manual operation key 47 is turned on,
Facsimile activation signal (CNG
Facsimile start signal detection unit 2 for detecting arrival of signal)
8a may be in a detectable state.

[0022]

As described above in detail, according to the communication device of the first aspect, when the manual operation member is operated during a call with the other party, noise can be cut off and the facsimile start signal can be detected. In this state, noise having a signal component similar to that of the CNG signal is not erroneously detected as the CNG signal, and it is possible to prevent an erroneous operation such as automatically shifting to the receiving state of the facsimile original.

According to the communication device of the second aspect, the interruption of the input of noise or the like (the interruption of the voice input through the microphone) is released after a predetermined time has passed after the operation of the manual operation member. Even if the user manually operates the manual operation member, the voice input through the microphone is interrupted and the call cannot be temporarily made, but the call can be made again and the usability is improved.

According to the communication device of the third aspect, after a predetermined time has elapsed after the manual operation member was operated, the communication state with the other party via the external communication line is terminated. The operation to finish is unnecessary, and the usability is improved.

According to the communication device of the fourth aspect, since the control means keeps the detection means in the detection state at all times, the command is transmitted from the slave side to the master side to detect the arrival of the facsimile start signal. Unlike the configuration, the arrival of the facsimile start signal can be detected without transmitting a command from the slave side to the master side. As a result, when a command is sent from the child device to the parent device, noise may be mixed when the command is sent, and the other party on the phone may hear annoying sound or the command may be heard. While a new configuration for processing is required, if the detection means is always in the detection state, in a quiet environment with little noise,
Since the facsimile activation signal can be normally detected, there is an advantage that the reception can be started without operating the manual operation member.

According to the communication device of the fifth aspect, the command sending control means sends a command based on the operation of the manual operation member to operate the detecting means for detecting the arrival of the facsimile start signal, and execute the command. When the sending means operates the detecting means, it detects the arrival of the facsimile activation signal during a call with the other party through the external communication line, but when the detecting means does not work during the call with the other party, Since the arrival of the facsimile activation signal is not detected, noise having the same signal component as the facsimile activation signal will not be erroneously detected as the facsimile activation signal. Therefore, it is possible to prevent an erroneous operation in which noise is erroneously detected as a facsimile start signal and the state automatically shifts to a facsimile original receiving state.

[Brief description of drawings]

FIG. 1 is a plan view showing an appearance of a main body of a facsimile apparatus according to a first embodiment.

FIG. 2 is a block diagram showing a main body of the facsimile apparatus according to the first embodiment.

FIG. 3 is a plan view showing the external appearance of a slave unit of the facsimile apparatus according to the first embodiment.

FIG. 4 is a block diagram showing a slave unit of the facsimile apparatus according to the first embodiment.

FIG. 5 is a flowchart showing a process when a manual operation key is operated during a call of a slave of the facsimile apparatus according to the first embodiment.

FIG. 6 is a block diagram showing a main body of a facsimile apparatus according to a second embodiment.

FIG. 7 is a block diagram showing a slave of the facsimile apparatus according to the second embodiment.

FIG. 8 is a flowchart showing a process when a manual operation key is operated during a call of a child device of the facsimile apparatus according to the second exemplary embodiment.

FIG. 9 is a plan view showing an appearance of a main body of a facsimile apparatus according to another embodiment.

[Explanation of symbols]

1 main body of facsimile device (communication device) 2 indicator 3 buttons 13 speaker 16 ROM 17 RAM 18 EEPROM 23 NCU 25 CPU (control means) 28 FAX / data modem 28a facsimile start signal detection unit (detection means) 30 public telephone line (External communication line) 31 Handset 36 Manual operation key (manual operation member) 38 Microphone 44 RAM 44a Mute timer T1 timer 45 Manual operation key (manual operation member) 46 CPU (command sending control means)

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 5C075 AB06 BB04 BB14 CD11 CD15                       FF90                 5K067 AA26 AA34 BB02 BB21 DD27                       EE03 HH01                 5K101 KK01 LL01 LL14 MM05 NN08                       NN34 QQ08 QQ10 RR28 TT08                       UU06

Claims (5)

[Claims] 1. A communication device comprising a master unit connected to an external communication line and having a facsimile transmission / reception function, and a slave unit wirelessly connected to the master unit, wherein the master unit receives arrival of a facsimile start signal. A detecting means for detecting, during a call with the other party via the external communication line, a manual operation member for cutting off noise and making a facsimile start signal detectable is provided in the master unit or the slave unit, A communication device, comprising: a control unit that, when the manual operation member is operated, substantially cuts off noise and, when a facsimile start signal is detected, sets a facsimile receivable state. 2. The communication device according to claim 1, wherein the control means communicates with the other party via an external communication line when a facsimile start signal does not arrive within a predetermined time after the manual operation member is operated. A communication device capable of returning to the call state. 3. The communication device according to claim 1, wherein the control unit communicates with the other party via an external communication line when a facsimile activation signal does not arrive within a predetermined time after the operation of the manual operation member. A communication device characterized by terminating the call state of. 4. The communication device according to claim 1, wherein the control unit keeps the detection unit in a detection state. 5. A communication device comprising a master unit connected to an external communication line and having a facsimile transmission / reception function, and a slave unit wirelessly connected to the master unit, wherein the master unit receives arrival of a facsimile start signal. A hand-operated member for detecting the facsimile start signal in the detection means during a call with the other party via an external communication line; From the master unit to the master unit side, based on the operation of the manual operation member, a command transmission control unit for transmitting a command for operating the detection unit.