JPH0759016B2 - Facsimile communication device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile communication device having a normal call function.

BACKGROUND ART In a facsimile communication device having an automatic call reception function, if a caller side requests a facsimile communication request, it immediately receives the request and performs facsimile communication, but a caller side communication request by a telephone is received. I couldn't. In addition, a facsimile communication device that does not have an automatic call reception function can handle both a facsimile communication request and a call request from the caller side.
These choices had to be done manually.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention When a call request is made to a facsimile communication device having a call function, for example, by a telephone set, the caller side device is connected to the caller side by line connection. Even if the called party is ready to respond to the call request, no signal may be sent from the called party, which does not confirm to the calling operator whether or not the line connection has been established. It gave me a sense of anxiety.

The object of the present invention is to solve the above-mentioned problems and to be able to deal with both the call request and the facsimile communication request on the caller side. (EN) A facsimile communication device capable of making both the calling side and called side operators recognize that the called side device is in a call.

Means for Solving the Problems The present invention provides a handset for making a call, a means for acoustically outputting a first ringing tone in response to a dial call from a calling party, and the handset. A hook switch that goes into an off-hook state by being placed in a call state, a first timekeeping unit that times a first predetermined time after connecting a telephone line to a caller, and a first timekeeping unit that controls the first time Detection means for detecting a facsimile communication request call signal requesting facsimile communication from a caller during timekeeping; a second ring tone signal different from the first ring tone indicating that a call is in progress; Generating means for generating a signal of another third ringing tone having a mode different from that of the first ringing tone indicating that the ringing is being performed; In response, when the facsimile communication request call signal is not detected during the time counting of the first time, the second time counting means is provided for timing a second predetermined time after the elapse of the first time. The second ringing tone signal from the communication ringing tone generating means is acoustically output to call the called side operator, and the third ringing tone signal is sent to the telephone line during the second time measurement by When the off-hook state of the hook switch is detected during transmission of the second time by the second timing means, the caller side is informed that the called side operator is calling.
While the telephone call is being executed by the handset, when the facsimile communication request call signal is detected by the detecting means while the first time is being measured by the first time measuring means, or the second time is being measured by the second time measuring means. When the off-hook state of the hook switch is not detected during the time counting, the facsimile communication device is provided with means for outputting a signal for starting a facsimile communication procedure and executing facsimile reception. .

Operation According to the present invention, after the telephone line is connected to the caller, the first timekeeping means for timing the first predetermined time is provided, and while the first timekeeping means measures the first time, When a facsimile communication request call signal for requesting facsimile communication is detected, facsimile reception is possible, so when the calling party is an automatic transmission facsimile communication device,
Automatic facsimile communication can be started during the first time measurement by the first time measurement means, and further, during the second time measurement by the second time measurement means, the first call from the communication ringing tone generation means is started. 2 ringing signal,
A sound is output to call the called side operator, and a signal of a third ringing tone is sent to the telephone line to notify the calling side that the called side operator is being called, and a second timing means. When the off-hook state of the hook switch is detected while the second time is being measured by the telephone, the call by the handset is executed. Because it detects
When the calling side is requesting a call, the called side operator can be called during the timing of the second time, and further, during the timing of the first time by the first timing means,
A signal for starting the facsimile communication procedure when the facsimile communication request call signal is detected by the detecting means, or when the off-hook state of the hook switch is not detected during the counting of the second time by the second timing means. Is provided to execute facsimile reception, the facsimile communication is automatically started after the elapse of the second time when the caller side is a manually transmitted facsimile communication device.

Therefore, an appropriate response can be made regardless of whether the caller side is automatic transmission, call request, or manual transmission.

Embodiment FIG. 1 is a block diagram showing an electrical configuration of an embodiment of the present invention. The facsimile communication device 1 is provided with a line network control unit 2 connected to a telephone line. The line network control unit 2 performs a line control operation between the external telephone line and the device 1 and responds to a dial call from the caller side, as will be described later, and responds to the device 1 and the caller side. It has an automatic incoming call function to connect with the telephone line. The line network control unit 2 includes a handset 3 including a transmitter and a receiver.
A call unit 4 for making a call is connected via. Further, a control unit 6 for performing automatic switching control between a telephone function and a facsimile communication function of the device 1 is connected to the line network control unit 2 via a modulation / demodulation unit 7. The modulation / demodulation unit 7 modulates / demodulates a carrier signal transmitted / received by the device 1 via the telephone line. That is,
The image information related to the facsimile communication is modulated / demodulated via the modulator / demodulator 7.

A signal level detection is provided between the line network control unit 2 and the control unit 6 to identify the type of various control signals transmitted from the caller side through the telephone line by detecting the signal level. The section 8 is provided as a detecting means, and a signal sending section 9 for creating a control signal to be sent from the device 1 (callee) to the calling party in response to the output of the control section 6 is interposed. Further, the line network control unit 2 and the control unit 6 are connected via a line l1 in order to realize an automatic incoming call function described later.

The control unit 6 includes a voice storage unit 10 for storing a call-in-progress message (voice) to be sent to the caller side,
A timer unit 11 for measuring a first time limit T1 and a second time limit T2, which will be described later, and a speaker 12 for audibleizing a ringing signal or message, which will be described later, are connected to each other. Further, a reading unit 13 for optically reading an image of a document loaded in the apparatus 1, a recording unit 14 for recording image information received via a telephone line,
An operation unit 15 including a dial key and the like are connected in parallel to the control unit 6.

FIG. 2 is a timing chart for explaining a call procedure of the facsimile communication device 1. With reference to FIG. 1A, description will be made assuming that a calling side having a facsimile communication function of an auto dial system makes a facsimile communication request to the device 1 (called side).

At time t0, the calling side makes a dial call to the called side. At the called side, the line polarity is reversed by the automatic call receiving function of the line network control unit 2 in response to the dialing call made by the calling side (time t1). Before the line polarity is reversed, a first ringing tone such as an alarm tone is generated in response to the dial transmission. The polarity inversion realizes a line connection between the calling side and the called side. Line network control unit 2
Then, when the inversion of the line polarity is detected, a signal indicating this is immediately sent to the control unit 6 via the line l1.
As a result, the control unit 6 recognizes that the line connection with the calling side is completed, and starts counting the first time limit T1 (for example, 5 seconds) set in the time counting unit 11.

During the first time limit T1, the signal level detecting section 8 detects whether or not a facsimile communication request calling signal (hereinafter referred to as a CNG signal) is sent from the calling side. This CNG signal is a type of signal that is sent out when a facsimile communication request is made in an auto-dial type facsimile communication device, and a sounding state in which a 1100 Hz calling tone is generated for 0.5 seconds and 3
It is a signal in which a silent state for a second is alternately repeated. In this case, since this CNG signal is sent from the calling side,
The device 1 detects this and starts a communication procedure for performing facsimile communication with the calling party.

When starting facsimile communication, a control signal as described below for starting the facsimile communication procedure is sent from the called side to the calling side. That is, first, the called station identification signal (CED signal-Called Station Identifi
cation-tonal) is sent to the calling party. This CED signal is a signal in which 2100 Hz sound continues for 2.6 seconds to 4 seconds, and the calling side can recognize that the facsimile communication with the called party is possible by receiving the CED signal. it can. After the CED signal is transmitted from the called station, a non-standard device signal (NFS signal-Non-Standard Facilit
ies "0000 0100"), called station identification signal (CSI signal-Call
ed Station Identification “0000 0010”), digital identification signal (DIS signal − Digital Identification Signal
"0000 0001") is sent to the calling side in this order, and then the image information from the calling side is received.

The control signals are created in the signal sending unit 9.
That is, the CNG signal received by the line network control unit 2 is detected by the signal level detection unit 8 and a signal indicating this is output to the control unit 6. As a result, the control unit 6 outputs to the signal transmission unit 9 a signal instructing the creation of each of the control signals. In response to this, the signal sending unit 9 creates each control signal and sends it from the line network control unit 2 to the calling side via the telephone line.

Next, with reference to FIG. 2 (2), description will be given on the assumption that the calling side makes a call request by a normal telephone.

At time t0, the calling side makes a dial call using a transceiver for making a call, and by this dial call, the first ringing tone is generated before the line polarity is reversed, and at time t1, the called When the reversal of the line polarity is detected on the calling side, the timing of the first time limit time T1 is started as described above, and the presence or absence of the CNG signal described above is detected. In this case, since the calling side is making a call request and not sending the CNG signal indicating a facsimile communication request, during the first time limit T1, the signal level detecting unit 8 No CNG signal is detected at. As a result, the control unit 6 starts timing of the second time limit T2 (for example, 15 seconds) preset in the time count 11 from the end time t2 of the first time limit T1 and a call described later. The procedure is started.

That is, from the time t2 to the end time t3 of the second time limit T2, the call ringing message, which is the second ringing sound stored in advance in the voice recording unit 10, is audible by the speaker 12, and the same sound is generated. The call ringing message, which is the third ringing tone, is continuously transmitted to the calling side through the telephone line. For example, a message such as "Call is requested" is used as the call calling message that is sounded by the speaker 12, and a message such as "Call is being requested" is sent to the calling side. May be used. As described above, the above-mentioned first ringing tone has a mode different from the call ringing message which is the second and third ringing tones.

In this way, by audibly converting the call calling message, it is possible to make a call request to the called operator. This called operator responds to the call request during the second time limit T2 and presses the call key of the operation unit 15,
Alternatively, when a call start instruction is given by lifting the handset 3 and turning off a hook switch (not shown), the control unit 6 outputs a switching signal to the network control unit 2.
As a result, the line network control unit 2 switches the telephone line to the side of the call unit 4 and puts the device 1 in the call-enabled state. This allows the called operator to talk with the calling operator.

On the other hand, when the calling side makes a dial call, after the first time limit T1 has elapsed since the line was connected, the called side sends out the above-mentioned third ringing tone message. The calling operator can then hear this message via the handset. Therefore, the operator on the calling side can confirm that the call request is made to the operator on the called side, and the unnecessary anxiety caused by no response is released.

If the called operator does not give a call start instruction such as lifting the handset 3 during the second time limit T2,
The device 1 starts the CED from the end time t3 of the second time limit T2.
A signal is sent to start the facsimile call procedure as described above. The facsimile call procedure is started in this manner in order to deal with the case where the calling side makes a facsimile communication request with the facsimile communication apparatus of the manual dial method.

In other words, in the facsimile communication device using the manual dial method, the facsimile communication procedure is started by the operator pressing the transmission start key after confirming the reception of the CED signal from the called side by dialing. In addition, the CNG signal as described above is not transmitted. Therefore, if the called party does not receive the call request during the second time limit T2, the facsimile communication procedure by the manual dial method can be dealt with by immediately starting the facsimile communication procedure.

FIG. 3 is a flow chart for explaining the operation on the called side.

In step n1, when the line network control unit 2 detects that the line polarity has been reversed, the counting of the first time limit T1 is started in step n2.

In step n3, it is determined whether or not a CNG signal is detected. When this CNG signal is detected, the process proceeds to step n10, the CED signal is sent to the calling side, and the facsimile communication procedure is started. If the CNG signal is not detected in step n3, the process proceeds to step n4, it is determined whether or not the first time limit T1 has passed, and if the first time limit T1 has not passed, the process returns to step n3, and when the time passes, Go to step n5.

In step n5, timing of the second time limit T2 is started. In step n6, the call calling message is sounded from the speaker 12, and in step n7, the call calling message is sent to the calling side through the telephone line.

In step n8, it is determined whether or not the second time limit T2 has elapsed, and if not, the process proceeds to step n9.

In step n9, it is determined whether the handset 3 is lifted and the hook switch is cut off. When the hook switch is cut off, that is, when the operator gives a call start instruction, a call with the caller is started. If no call start instruction is given, the process returns to step n6.

When the second time limit T2 ends in step n8, the process proceeds to step n10, the CED signal is sent to the calling side, and the facsimile communication procedure is started.

Thus, in the facsimile communication device 1 of the present invention,
Whether the caller requests a facsimile communication request or a call request, these can be handled by the automatic call receiving function. In addition, regardless of whether the calling side facsimile communication request is an automatic dial method or a manual dial method, these can be dealt with by the automatic call receiving function, and the versatility is improved.

In this embodiment, the call call message is sent as the second and third call sounds in the call procedure (steps n6 and n7 in FIG. 3).
Instead of this call call message, an alarm sound may be sent as the second and third ring sounds. Also in this case, each of the alarm sounds as the second and third ringing tones is a signal of a type different from that of the alarm as the first ringing tone before the inversion of the line polarity. As a result, the distinction between the alarm sound as the first ringing sound before the line polarity reversal and the alarm sound is clarified, and the operator on the calling side hears this alarm sound to request a call to the called side. You can confirm that

Effect As described above, according to the present invention, an automatic call receiving function capable of responding to both a call request and a facsimile communication request on the caller side is realized. Further, when a call request is made from the caller side, the operators of both the caller side and the callee side hear the second and third ringing tones, and the callee side makes a call with the second ringing tone. You can confirm that you are on a call, and you will be relieved of unnecessary anxiety.

In particular, according to the present invention, the facsimile communication request calling signal CN from the caller during the first time T1 is measured from the caller side.
When G is detected, the facsimile reception is automatically executed, and when the facsimile communication device by the manual dial method on the calling side is used, after the first and second times T1 and T2 have elapsed, A signal for starting the facsimile communication procedure is output, and facsimile reception can be automatically executed.

Further, according to the present invention, as is apparent from the flowchart of FIG. 3, for example, after the handset 3 is picked up by the first ringing tone, the telephone call by the handset 3 is made after the elapse of the first time T1. The effect that the call can be made without any trouble is achieved.

[Brief description of drawings]

FIG. 1 is a block diagram showing the electrical configuration of an embodiment of the present invention, FIG. 2 is a timing chart for explaining the operation, and FIG. 3 is a flow chart for explaining the operation on the called side. 1 ... Facsimile communication device, 2 ... Line network control unit, 3
...... Handset, 4 …… Talking unit, 6 …… Control unit, 7 ...
... modulation / demodulation section, 8 ... signal level detection section, 9 ... signal transmission section, 10 ... sound storage section, 11 ... timekeeping section, 12 ... speaker

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshihiro Matsuda 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Within Sharp Corporation (72) Takashi Nakajiri 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Within the Corp. (72) Inventor Gennichi Hayashi 22-22 Nagaike-cho, Abeno-ku, Osaka City, Osaka Prefecture Within the Corp. (56) Reference JP-A-59-103458 (JP, A) JP-A-62- 180667 (JP, A)

Claims (1)

[Claims] 1. A handset for making a call, a means for acoustically outputting a first ringing tone in response to a dial call from a calling side, and the handset being in a call state. A hook switch that is in an off-hook state, a first timekeeping unit that measures a first predetermined time after connecting the telephone line to the caller, and a caller from the caller while the first timekeeping unit measures the first time. Means for detecting a facsimile communication request call signal for requesting facsimile communication of the second call sound, a second call sound signal different from the first call sound indicating that the call is being made, and a call being made Generating means for generating another third ringing tone signal different from the first ringing tone, and responding to the outputs of the first clocking means and the detecting means, and measuring the first time. A second time measuring means for measuring a second predetermined time after the lapse of the first time when the facsimile communication request calling signal is not detected, and communication is performed during the second time measurement by the second time measuring means. A second ringing tone signal from the ringing tone generating means is acoustically output to call the called side operator, and a third ringing tone signal is sent to the telephone line to caller side to the called side. When an off-hook state of the hook switch is detected while notifying the operator that the call is being made and the second time counting means is measuring the second time,
While the telephone call is being executed by the handset, when the facsimile communication request call signal is detected by the detecting means while the first time is being measured by the first time measuring means, or the second time is being measured by the second time measuring means. A facsimile communication apparatus comprising: a unit for outputting a signal for starting a facsimile communication procedure and executing facsimile reception when the off-hook state of the hook switch is not detected during the time counting.