JPH1127497A - Facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To receive data at a highest communication speed suitable for a channel state with a transmitter side facsimile equipment at all times while reducing a time to determine a communication speed through decreasing the number of times of training. SOLUTION: A main control section 1 acquires sender information to be sent with a call signal from a communication network C via a sender information transmission section 24 and a MODEM section 4. In the case of an incoming call from a first destination, training is controlled at a communication speed with a maximum capability and when the communication speed is determined, the communication speed is stored in a sender information table 51 with the sender information. In the case of the arrival of an incoming call from a destination at 2nd and succeeding times, training is controlled at a communication speed corresponding to the sender information stored in the sender information table 51 to reduce the number of times of training.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus connected to a communication network for notifying a call destination together with a call signal and identification information for specifying a caller, for example, a caller's telephone number and a user name. .

[0002]

2. Description of the Related Art Generally, a facsimile apparatus responds to an incoming call and closes a line, and then performs a facsimile receiving process according to a known communication procedure.

In this receiving process, before receiving the image data, the receiver-side facsimile notifies the transmitter-side facsimile of the maximum communication speed of its own. As a result, the transmitter-side facsimile apparatus starts training for transmission at a communication rate less than or equal to the communication rate notified from the receiver-side facsimile apparatus and at the maximum communication speed of its own capability. When the receiving-side facsimile apparatus can normally receive the training check signal, the communication speed at this time is determined as the communication speed of image data transmission. On the other hand, when the line condition is bad and the training check signal cannot be normally communicated due to a long communication distance or the like, the transmitter-side facsimile apparatus lowers the communication speed by one step and performs training again. In this way, if the training is repeatedly performed while gradually reducing the communication speed until a training check signal can be normally received in the receiver-side facsimile apparatus, and the fastest communication speed suitable for the line condition is determined, Facsimile communication of image data was performed at this communication speed.

[0004] Incidentally, the communication speed is a unit (bps: bit per second) of the amount of data that can be transmitted per second, and the standard model is 7200 bps, 4800 bps or 2400 bps up to 9600 bps.
Communication can be performed at a communication speed of bps. Recently, a model capable of supporting high-speed communication of 14400 bps or more has been developed.

[0005]

However, in the above-described procedure for determining the communication speed of the conventional apparatus, there is a problem in that when the line condition is poor, it takes time until the communication speed is determined because the number of trainings increases. Was.
In order to solve such a problem, the communication speed to be notified to the transmitter-side facsimile apparatus at the time of an incoming call is set to 480
When the user performs the setting operation at a low speed of 0 bps,
What is necessary is just to reduce the number of training.

However, when the communication speed is set to a low speed, the set low-speed communication is always set even if the image data can be communicated at the communication speed of the maximum capacity of the facsimile machine due to good line conditions. Since the communication is performed at a speed lower than the communication speed, the time required for determining the communication speed is reduced, but another problem occurs that the transmission time of the image data is unnecessarily long.

The present invention has been made in view of the above circumstances, and an object of the present invention is to reduce the number of trainings performed during a communication procedure at the time of an incoming call to shorten the time required for determining the communication speed. It is another object of the present invention to provide a facsimile apparatus which can always receive data at the highest communication speed suitable for the line condition with the transmitter-side facsimile apparatus.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is connected to a communication network in which a call destination is notified of identification information specifying a caller together with a call signal. In the facsimile receiving process, the facsimile receiving device performs training on transmission with the facsimile device on the transmitter side to determine the optimum communication speed, and receives image data at this communication speed. And transmission source information storage means for storing communication speed information. Also, an identification information receiving means for receiving identification information notified from the communication network when a call signal arrives, and searching the storage information in the transmission source information storage means with the identification information received by the identification information receiving means, and finding the corresponding identification information. And identification information searching means for determining the presence or absence of registration. If it is determined by the identification information search means that the corresponding identification information is not registered, the training control means notifies the transmitter-side facsimile apparatus of the communication speed of the maximum capability of the facsimile apparatus and controls the training. When the optimum communication speed is determined as a result of the training, the transmission information indicating the optimum communication speed is made to correspond to the identification information received by the identification information receiving means by the transmission source information storage control means and the transmission source information is stored. It is stored in the storage means. On the other hand, when it is determined that the corresponding identification information is registered by the identification information search means, the communication speed information corresponding to the identification information is read from the storage information of the transmission source information storage means by the registration training control means, The communication speed indicated by the communication speed information is notified to the transmitter-side facsimile apparatus to control the training.

Further, according to the present invention, when the optimum communication speed is determined as a result of the training controlled by the registration training control means, the corresponding identification information stored in the transmission source information storage means by the communication speed registration information updating means is provided. The communication speed information corresponding to the information may be updated to the communication speed information indicating the optimum communication speed. In this case, the training of the transmission with the transmitter-side facsimile apparatus is performed by gradually decreasing the communication speed until an optimum communication speed is obtained, and the training of the training controlled by the registration training control means is performed. If the communication speed notified as a result is determined to be the optimum communication speed, it is convenient to add a function of performing training again at a higher communication speed and checking whether the optimum communication speed can be obtained.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment will be described with reference to FIGS. In this embodiment, a case will be described in which the present invention is applied to a facsimile apparatus having a maximum communication speed of 14400 dps.

FIG. 1 is a functional block diagram showing a main configuration of a facsimile apparatus according to the present embodiment. This facsimile apparatus has, for example, a main control unit 1 which has a microcomputer and controls general control as a facsimile apparatus. In addition, it has a network control unit 2, a built-in telephone 3, a modem unit 4, a memory unit 5, a reading unit 6, a recording unit 7, an incoming call ringing unit 8, and an operation panel unit 9. The main control unit 1 is connected to the network control unit 2, the modem unit 4, the memory unit 5, the reading unit 6, the recording unit 7, and the ringing unit 8 via a bus line 10.
The main control unit 1 and the operation panel unit 9 are connected by a signal line 11.

The network control unit 2 has a function of interfacing a signal transmitted on the communication line C with a signal transmitted on the bus line 10, and a connection destination of the communication line C between the internal telephone 3 and the modem unit 4. With the function of switching
It comprises a / TEL switch 21, a switch control interface 22, a facsimile signal transformer 23, a source information transformer 24, and a call signal detector 25.

The FAX / TEL switch 21 is a switch for switching between connecting the communication line C to the facsimile signal transformer section 23 and connecting to the built-in telephone 3, and is controlled by a signal from the switch control interface section 22. You. Switch control interface unit 22
Generates a switch control signal based on control data given from the main control unit 1 via the bus line 10, and
It is given to the X / TEL switch 21.

The facsimile signal transformer section 23 takes in a facsimile transmission signal sent via the communication line C and gives it to the modem section 4. Both the transmission source information transformer unit 24 and the call signal detection unit 25
The / TEL switch 21 is provided so as to be connected to the communication line C when connected to the built-in telephone 3 side.
The source information transformer unit 24 takes in identification information for specifying the source, ie, source information, sent from the communication network side when receiving a call, gives the information to the modem unit 4, and gives it to the modem unit 4.
Detects a call signal sent from the communication network side to notify the incoming call.

Here, FIG. 2 shows an example of the data format of an incoming signal sent from the communication network at the time of an incoming call.
As shown, this incoming signal lasts for 2 seconds, 20
The ringing signal P of Hz is a signal that appears repeatedly with a ringing signal stop period of 4 seconds. After the termination of the first ringing signal P, a source information signal Q obtained by FSK-modulating the source information in the illustrated format is superimposed on the incoming signal after a pause period of 0.5 seconds. The sender information includes
It contains the telephone number of the facsimile machine that is the source, the user name registered in the facsimile machine, and the like.

The built-in telephone 3 has a well-known configuration including, for example, a handset and a communication circuit, and is used for voice communication. The modem unit 4 reproduces facsimile data and source information by demodulating a facsimile transmission signal and a source information signal transmitted via the communication line C, and outputs the reproduced data to the bus line 10; And a function of modulating the facsimile data given through the network 10 into a facsimile transmission signal and outputting this to the communication line C via the network control unit 2.

The memory unit 5 has a source information table 51 and a communication speed table 52 in addition to a well-known memory area for storing transmission history information, reception history information, and the like. As shown in FIG. 3, the transmission source information table 51
Corresponds to the telephone number of another facsimile machine that has become the other party of the facsimile communication, and stores communication speed information indicating an optimum communication speed with the other party's facsimile machine. .

As shown in FIG. 4, the communication speed table 52 stores usable communication speeds in the order of high speed in accordance with the communication speed information of the serial number n. By the way, in the case of the facsimile apparatus of this embodiment, the communication speed [14400 dp of the maximum capacity is corresponding to the communication speed information [1].
s] is set in advance, the communication speed [9600 dps] is set in advance corresponding to the communication speed information [2], the communication speed [7200 dps] is set in advance in accordance with the communication speed information [3], and the communication speed information is set. The communication speed [480] corresponding to [4]
0 dps] is set in advance, and the communication speed [2400 dps] is set in advance corresponding to the communication speed information [5].

The reading section 6 reads a transmission original and generates facsimile data. The recording unit 7 records an image corresponding to the facsimile data reproduced by the modem unit 4 on the facsimile transmission signal transmitted via the communication line C on recording paper.

Under the control of the main control unit 1, the incoming call ringing unit 8 sounds a predetermined ringing tone for detecting an incoming call to the user. The operation panel section 9 has an LCD 91 for displaying various information to the user, and a key group 92 for the user to input various instructions to the main control section 1.

The main control unit 1 controls each unit in accordance with the processing procedure shown in the flowchart of FIG. First, it waits for an outgoing call request to be generated as ST (step) 1 or for a call signal to be detected by the call signal detector 25 as ST 2. Note that the FAX / TEL switch 21 connects the communication line C to the built-in telephone 3.

When an outgoing call request is issued in this standby state, the outgoing call process is performed by, for example, a well-known general procedure.
On the other hand, when the calling signal is detected by the calling signal detecting unit 25, the source information transmitted following the first calling signal is captured by the source information transformer unit 24 and the modem unit 4 in ST3. Memory unit 5
And the telephone number and the user name in the transmission source information are displayed on the LCD 91 of the operation panel unit 9 (identification information receiving means).

Next, an incoming call process is performed in ST4. In this incoming call processing, after confirming that the calling station is a facsimile machine, a response is made to close the line with the calling station, and control data is given to the switch control interface unit 22 to perform FAX / TEL switching. The switching of the switch 21 is controlled to connect the communication line C to the facsimile signal transformer 23. If the calling station is not a facsimile machine, the call processing is started without switching control of the FAX / TEL switch 21 or the apparatus waits for a call signal to be cut off without responding to an incoming call.

If it is confirmed that the calling station is a facsimile machine in the terminating process in ST4, a facsimile receiving process is started. In the facsimile receiving process, the main control unit 1 first searches the source information table 51 of the memory unit 5 with the telephone number in the source information detected earlier in ST5 (identification information search means). As a result, when the corresponding telephone number is not registered in the transmission source information table 51 (NO in ST6), the non-registered training control specifically shown in FIG. 6 is executed in ST7.

That is, the main control unit 1 notifies the transmitter-side facsimile apparatus, which is the calling station, of the communication speed of its own maximum capacity (14400 dps in the case of the facsimile apparatus of this embodiment) and performs transmission. Declare training start. As a result, the first training is performed with the transmitter-side facsimile apparatus at a communication speed less than or equal to the notified communication speed, and if the training fails, the second training is performed at the one-stage lower communication speed. Thus, the communication speed is reduced stepwise until the training check signal is normally received by the facsimile machine on the receiver side, and the training is repeated. as a result,
When confirming that the training is successful, the main control unit 1 determines the communication speed N at that time as the communication speed with the transmitter-side facsimile machine. On the other hand, if the training fails even at the communication speed of its own minimum capacity (2400 dps in the case of the facsimile apparatus of this embodiment), it is determined that a communication error has occurred (the training control means at the time of non-registration).

On the other hand, if the corresponding telephone number is registered in the transmission source information table 51 (YE in ST6)
S), the training control at the time of registration specifically shown in FIG. 7 is executed as ST8. That is, the main control unit 1 reads the communication speed information n corresponding to the corresponding telephone number from the transmission source information table 51. Then, referring to the communication speed table 52, the communication speed corresponding to the communication speed information n is acquired, and the communication speed is notified to the transmitter-side facsimile apparatus which is the calling station to declare the start of transmission training. Thus, the first training is performed at the notified communication speed with the transmitter-side facsimile machine, and if the training fails, the second training is performed at the one-stage lower communication speed. Thus, the communication speed is reduced stepwise until the training check signal is normally received by the facsimile machine on the receiver side, and the training is repeated. As a result, when confirming that the training is successful, the main control unit 1 determines the communication speed N at that time as the communication speed with the transmitter-side facsimile machine. On the other hand, the communication speed of its own minimum capability (2400 in the case of the facsimile apparatus of this embodiment)
(dps), if the training fails, a communication error occurs (training control means at registration).

Returning to FIG. The main control unit 1 executes ST7
If a communication error is detected in the non-registered training control (YES in ST9), the process proceeds to ST13 to perform a communication termination process. This communication end processing cuts off the line with the facsimile machine on the transmitter side and gives control data to the switch control
This is a well-known process of switching and controlling the TEL switch 21 to connect the communication line C to the built-in telephone 3.

If the communication speed N is determined as a result of the training (YES in ST10), the process proceeds to ST11 to perform image data reception processing. In this receiving process, image data transmitted from the facsimile apparatus on the transmitter side at the determined communication speed N is fetched via the facsimile signal transformer unit 23 and the modem unit 4 and temporarily stored in, for example, the memory unit 5 or the recording unit 7. Is a well-known process such as recording on a recording sheet.

Thereafter, the main control unit 1 refers to the communication speed table 52 to acquire communication speed information corresponding to the communication speed N employed in the current image data communication in step ST12, and transmits this communication speed information to the transmission source. It is detected from the information and added to the free area of the source information table 51 in association with the telephone number temporarily stored in the memory unit 5 (source information storage control means). Thereafter, the process proceeds to ST13, and if the above-described communication end process is executed, the current control is ended.

On the other hand, when the main control unit 1 detects a communication error in the training control at the time of registration in ST8 (YES in ST14), it proceeds to ST13 and performs the above-described communication end processing. In addition, the communication speed N
Is determined (YES in ST15), the process proceeds to ST16, and the same image data reception processing as in ST11 is performed.

Thereafter, the main controller 1 refers to the communication speed table 52 to obtain communication speed information corresponding to the communication speed N employed in the current image data communication in ST17. Then, the communication speed information acquired this time is updated by overwriting the communication speed information in the transmission source information table 51 corresponding to the telephone number detected from the transmission source information and temporarily stored in the memory unit 5. (Communication speed registration information updating means). Then, ST
13 and if the above-described communication end processing is executed,
The current control ends.

In the facsimile apparatus of the present embodiment thus configured, when a call is received from a destination whose telephone number is not registered in the transmission source information table 51, a communication procedure as shown in FIG. Facsimile communication with the other party is performed. In this example, the maximum capacity of the communication speed is 14400 dps, similarly to the facsimile device of the present embodiment, but the optimum communication speed is 4800 dps from the condition of the line connecting both devices. This is an example of speed.

That is, the facsimile apparatus of the present embodiment, which is the receiver side, first obtains caller information including a caller's telephone number together with the call signal reception, and the caller's telephone number is stored in the caller information table. After confirming that the communication speed is not registered in the communication device 51, a DIS (Digital Identification) signal is transmitted and the communication speed (14400
dps) is notified to the transmitter-side facsimile machine of the destination. Thus, the transmitter-side facsimile apparatus transmits a DCS (digital command) signal instructing to perform transmission training at the communication speed (14400 dps), and then transmits a TCF (training check) signal at the communication speed (14400 dps). And do the first training.

In this case, the facsimile apparatus of the present embodiment, which is the receiver side, cannot normally receive the TCF signal, and therefore transmits the FTT (training failure) signal. In response to the FTT signal, the transmitter facsimile apparatus transmits a DCS signal instructing to perform training at the next communication speed (9600 dps), and then transmits a TCF signal at the communication speed (9600 dps).
Train the second time.

Also in this case, since the facsimile apparatus of the present embodiment cannot normally receive the TCF signal, it transmits the FTT signal. In this way, the transmitter facsimile apparatus performs training by gradually lowering the communication speed until receiving a CFR (reception preparation confirmation) signal indicating that image data transmission may be started from the receiver-side facsimile apparatus.

As a result, the facsimile apparatus according to the present embodiment normally receives the TCF signal and transmits the CFR signal by the fourth training based on the communication speed (4800 dps), and accordingly, the facsimile apparatus on the transmitter side accordingly. Transmits a PIX (image data) signal at a communication speed (4800 dps). Thereafter, when the transmission of the image data is completed, the facsimile apparatus on the transmitter side transmits an EOP (procedure end) signal, the facsimile apparatus of the present embodiment transmits an MCF (message confirmation) signal, and the facsimile apparatus on the transmitter side Transmit DCN (disconnect command signal). Thus, the line between the facsimile apparatus of the present embodiment and the transmitter-side facsimile apparatus is disconnected.

At this time, the facsimile apparatus according to the present embodiment uses the telephone number of the transmitter-side facsimile apparatus which is taken in together with the call signal at the time of an incoming call as transmission source information, and communication speed information indicating the communication speed (4800 dps) employed this time. [4] is registered in the transmission source information table 51.

Therefore, when an incoming call is received again from the same destination, facsimile communication is performed according to the communication procedure shown in FIG. That is, the facsimile apparatus of the present embodiment, which is the receiver side, first obtains caller information including the caller's telephone number together with the incoming call signal, and registers the caller's telephone number in the caller information table 51. When it is confirmed that the communication speed has been set, the communication speed information [4] corresponding to the telephone number is read from the transmission source information table 51. Then, a DIS (digital identification) signal is transmitted, and the communication speed (4) corresponding to the communication speed information [4] is transmitted.
800 dps) to the other party's transmitter facsimile machine. As a result, the transmitter-side facsimile machine
After transmitting a DCS signal instructing to perform transmission training at a communication speed (4800 dps), a first training is performed by transmitting a TCF signal at a communication speed (4800 dps).

Then, the facsimile apparatus of the present embodiment normally receives the TCF signal and transmits the CFR signal, and accordingly, the facsimile apparatus on the transmitter side transmits the PIX signal at the communication speed (4800 dps). Thereafter, when the transmission of the image data is completed, the transmitter facsimile apparatus transmits the EOP signal, the facsimile apparatus of the present embodiment transmits the MCF signal, and the transmitter facsimile apparatus transmits the DCN. Thus, the line between the facsimile apparatus of the present embodiment and the transmitter-side facsimile apparatus is disconnected.

As described above, the facsimile apparatus according to the present embodiment uses the service of the communication network for notifying the destination of the caller together with the call signal and, for example, the telephone number of the caller and the user name as identification information for specifying the caller. If an incoming call is received from the first facsimile machine for the first time, the optimum communication speed information obtained as a result of training with the other facsimile machine in the same communication procedure as before is transmitted to the telephone of the other facsimile machine. The information is stored in the transmission source information table 51 in association with the number. If there is a second or subsequent incoming call from the destination facsimile machine,
Training is started at the communication speed of the communication speed information corresponding to the telephone number of the corresponding facsimile machine stored in the transmission source information table 51.

Accordingly, for a destination facsimile apparatus having a poor line condition and an optimum communication speed of, for example, 4800 dps for image data communication, in the communication procedure for the second and subsequent incoming calls, transmission training is performed from the communication speed of 4800 dps. Since the start is performed, the number of trainings until the optimum communication speed can be determined can be reduced. As a result, it is possible to reduce the time required until the communication speed is determined, as compared with the related art in which the start of training is declared at the communication speed of the maximum capacity of the facsimile apparatus (for example, 14400 dps).

On the other hand, when the line condition is good and the optimum communication speed for image data communication is, for example, the maximum capacity of 14400 dps.
With respect to the facsimile apparatus of the other party, the training of transmission is started from the communication speed of 14400 dps even in the communication procedure for the second and subsequent incoming calls. Therefore, also in this case, the time until the communication speed is determined is short, and there is no possibility that an unnecessarily low communication speed is set.

By the way, in the above-described first embodiment, for the destination facsimile apparatus in which the communication speed information is once registered together with the telephone number in the transmission source information table 51, the registered communication speed information is thereafter referred to. The training starts at the communication speed indicated by. Therefore, although the communication speed is likely to be determined by one training, the line condition with the destination facsimile machine is improved for some reason thereafter, and the data communication is performed at a communication speed higher than the registered communication speed. May be possible.

Next, a second embodiment in which the communication speed information once registered in the transmission source information table 51 can be updated to communication speed information indicating a higher communication speed will be described with reference to FIGS. 11 will be described. The difference between the second embodiment and the first embodiment is the contents of the registration training control (ST8 in FIG. 5) of the facsimile reception process executed by the main control unit 1 at the time of an incoming call. Is the same as in the first embodiment,
Description is omitted.

That is, in the second embodiment, the main control section 1 uses the telephone number in the source information transmitted together with the call signal at the time of an incoming call to the source information table 51.
When it is confirmed that the corresponding telephone number has been registered, the registration training control specifically shown in FIG. 10 is executed.

First, the main control unit 1 reads out the communication speed information n corresponding to the corresponding telephone number from the transmission source information table 51. Then, referring to the communication speed table 52, the communication speed N corresponding to the communication speed information n is acquired, and the communication speed N is notified to the transmitter-side facsimile apparatus which is the calling station to declare the start of transmission training. I do. Thus, the first training is performed at the notified communication speed N with the transmitter-side facsimile machine.

If the training fails (YES in ST21), the communication speed N ″ is one step lower.
The second training is performed. As a result, when the training is successful (YES in ST22), the communication speed N ″ at that time is determined as the communication speed with the facsimile apparatus on the transmitter side. If the communication speed of the capability (2400 dps in the case of the facsimile apparatus of this embodiment) is satisfied (YES in ST23), it is determined that a communication error has occurred.

On the other hand, when the training check signal is normally received in the first training and the training is successful (NO in ST21), the communication speed N at this time is the communication speed of the maximum capability of the self (the communication speed of this embodiment). It is determined whether the speed is 14400 dps in the case of the facsimile machine of the mode (ST24). If the communication speed is the maximum capacity (YES in ST24), the communication speed N is determined as the communication speed with the transmitter-side facsimile machine.

On the other hand, when the communication speed is lower than the communication speed of the maximum capacity, the communication speed table 52 refers to the communication speed table 52 and is smaller than the communication speed information n corresponding to the corresponding telephone number read from the transmission source information table 51 by "1". Communication speed information (n-1)
Is obtained, and the communication speed N 'is reported to the transmitter-side facsimile apparatus again to declare the resumption of training. As a result, one-time training is performed with the transmitter-side facsimile apparatus at the notified communication speed N '. If the retraining succeeds, the communication speed N 'in the retraining is determined as the communication speed with the transmitter-side facsimile machine. On the other hand, when the retraining fails, the communication speed N in the first training is determined as the communication speed with the transmitter-side facsimile machine.

FIG. 11 shows an example of a communication procedure when there is an incoming call from a destination whose communication speed information [4] of the communication speed (4800 dps) is registered in the transmission source information table 51. FIG. Example of successful training at the first communication speed (4800 dps) and subsequent training at the next higher communication speed (7200 dps) due to improved line conditions compared to the previous time In this case, the PIX signal is transmitted at 7200 dps. Also, FIG. 11B shows the first communication speed (4800 dp) because the line condition has not changed from the previous time.
This is an example in which the training in s) was successful, but the training at the next higher communication speed (7200 dps) was unsuccessful. In this case, the PIX signal is transmitted at 4800 dps.

As described above, in the second embodiment, the communication with the called party who has received the incoming call is completed normally, and the transmission speed at that time is shown in the transmission source information table 51 together with the telephone number of the called party. Even if the communication speed information is registered, at the time of the next incoming call, the training of the transmission is first performed at the communication speed of the communication speed information registered in the transmission source information table 51. Re-training is performed at the communication speed, and if it succeeds again, image data from the other party is received at the one-step higher communication speed. Therefore, when the line condition with the other party's facsimile machine is improved, automatic Facsimile reception can be performed at a communication speed higher than the registered communication speed.

When the communication with the destination registered in the transmission source information table 51 is completed normally, the communication speed information registered corresponding to the telephone number of the destination is used for the communication used in the current communication. Since the speed is automatically updated to the communication speed information (ST17 in FIG. 6), the training starts at the improved communication speed from the next time. Therefore, facsimile reception can always be performed at the highest communication speed suitable for the line condition with the transmitter-side facsimile apparatus.

The present invention can be applied to any facsimile apparatus having a receiving function. For example, a receiving-only machine having no reading unit 6 may be used.

In each of the above embodiments, the telephone number of the transmission source transmitted from the communication network as the transmission source information is registered in the transmission source information table 51 together with the communication speed information.
Instead of the telephone number, the user name in the transmission source information may be registered together with the communication speed information. By doing so, a function of printing out the registered contents of the transmission source information table 51 on recording paper by the recording unit 7 is added so that the user can confirm the registered contents. Unnecessary registration contents of the destination such as, for example, are deleted from the source information table 51 and the source information table 5 is deleted.
It is possible to effectively utilize one memory capacity.

In each of the above embodiments, the identification information (telephone number) for specifying the transmission source and the communication speed information indicating the latest communication speed at which the communication was successful are stored in the transmission source information table 51.
But the date when the communication speed information indicating the latest communication speed is updated is registered. When a call is received from a party whose number of days since this date has exceeded the predetermined number of days, the line status may have improved since the previous time. The training may be controlled by notifying the communication speed of the maximum capacity without notifying first.

Similarly, the transmission source information table 51 is provided with a counter area for counting the number of times of reading the communication speed information.
For the other party whose communication speed information has been read a predetermined number of times, there is a possibility that time has elapsed since the registration of the communication speed information and the line condition may have been improved. The training may be controlled by notifying the communication speed to the other party but notifying the communication speed of the maximum capacity.

In addition, it goes without saying that various modifications can be made without departing from the gist of the present invention, such as by applying the present invention to a facsimile machine having a speed higher than 14400 dps.

[0058]

As described in detail above, according to the present invention,
While reducing the number of training during the communication procedure performed at the time of an incoming call to shorten the time required for determining the communication speed,
It is possible to provide a facsimile apparatus that can always receive data at the highest communication speed suitable for the line condition with the transmitter-side facsimile apparatus.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a data format of a call signal and a source information signal sent from the communication network side when a call is received.

FIG. 3 is a view showing a specific configuration of a transmission source information table in FIG. 1;

FIG. 4 is a diagram showing a specific configuration of a communication speed table in FIG. 1;

5 is a flowchart specifically showing a processing procedure executed by a main control unit in FIG. 1, in particular, a facsimile reception processing procedure.

FIG. 6 is a flowchart specifically showing contents of training control at the time of non-registration in FIG. 5;

7 is a flowchart specifically showing the content of training control at registration in FIG. 5;

FIG. 8 is a diagram showing an example of a communication procedure between the transmitter and the receiver at the time of the first incoming call according to the first embodiment.

FIG. 9 is a diagram showing an example of a communication procedure between the transmitter and the receiver at the time of the second or later incoming call according to the first embodiment.

FIG. 10 is a flowchart specifically showing the content of training control at registration according to the second embodiment of the present invention.

FIG. 11 is a diagram showing an example of a communication procedure between a transmitter and a receiver at the time of second and subsequent incoming calls according to the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Main control part 2 ... Network control part 3 ... Built-in telephone 4 ... Modem part 5 ... Memory part 6 ... Reading part 7 ... Recording part 9 ... Operation panel part 51 ... Source information table 52 ... Communication speed table

Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04N 1/00 107 H04L 13/00 307C

Claims (3)

[Claims] 1. A facsimile apparatus connected to a communication network in which facsimile reception processing is performed after receiving a paging signal to perform transmission training with a facsimile apparatus connected to the communication network. In a facsimile apparatus that determines an optimal communication speed by receiving the image data at this communication speed, a sender information storage unit that stores communication speed information corresponding to the identification information that specifies the sender, Identification information receiving means for receiving the identification information notified from the communication network when the call signal is received, and searching the storage information by the transmission source information storage means with the identification information received by the identification information receiving means, and An identification information search means for determining whether or not identification information is registered; and transmitting the identification information when the identification information search means determines that the corresponding identification information is not registered. A non-registered training control means for notifying the machine-side facsimile apparatus of the communication speed of its own maximum capacity and controlling the training, and an optimum communication speed is determined as a result of training controlled by the unregistered training control means. Then, the source information storage control means for storing the communication speed information indicating the optimum communication speed in the source information storage means in association with the identification information received by the identification information receiving means, When it is determined that the identification information is registered, the communication speed information corresponding to the identification information is read out, the communication speed indicated by the communication speed information is notified to the transmitter-side facsimile apparatus, and the registration-time training control means controls the training. A facsimile apparatus comprising: 2. A facsimile apparatus connected to a communication network, which is connected to a communication network for notifying a destination of a call signal and identification information for specifying a call source, and performing a facsimile reception process after receiving the call signal to perform transmission training with the transmitter-side facsimile apparatus. In a facsimile apparatus that determines an optimal communication speed by receiving the image data at this communication speed, a sender information storage unit that stores communication speed information corresponding to the identification information that specifies the sender, Identification information receiving means for receiving the identification information notified from the communication network when the paging signal is received, and searching the storage information by the transmission source information storage means with the identification information received by the identification information receiving means, and An identification information search means for determining whether or not identification information is registered; and transmitting the identification information when the identification information search means determines that the corresponding identification information is not registered. A non-registered training control means for notifying the machine-side facsimile apparatus of the communication speed of its own maximum capacity and controlling the training, and an optimum communication speed is determined as a result of training controlled by the unregistered training control means. Then, the source information storage control means for storing the communication speed information indicating the optimum communication speed in the source information storage means in association with the identification information received by the identification information receiving means, When it is determined that the identification information is registered, the communication speed information corresponding to the identification information is read, and the communication speed indicated by the communication speed information is notified to the transmitter-side facsimile apparatus to control the training. The training result controlled by this registration training control means is optimal. Communication speed registration information updating means for updating the communication speed information corresponding to the corresponding identification information stored in the transmission source information storage means to the communication speed information indicating the optimum communication speed when the proper communication speed is determined. A facsimile machine characterized by the above. 3. The training for transmission with the transmitter-side facsimile apparatus is performed by gradually lowering the communication speed until an optimum communication speed is obtained, and the training is controlled by the registration-time training control means. 3. If the communication speed notified as a result of the determination is determined to be an optimum communication speed, training is performed again at a higher communication speed to check whether an optimum communication speed can be obtained. Facsimile machine.