JPH089085A - Fax machine - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a facsimile device, and in a retransmission operation of an error page caused by the occurrence of a transmission error due to deterioration of a communication line state or the like, a reception end time displayed in advance and an actual reception end time. The purpose is not to make a difference. [Structure] The modem unit 15 receives the image data set in the non-standard function setting signal NSS, the image data amount information, and the document page number information, and then the calculation unit 17 converts the image data amount information and the document page number information. Based on this, the reception required time is calculated, and the reception end time is calculated by adding the current time information represented by the clock unit 19 and the reception required time, and the result is displayed on the operation display unit 11. Here, when it is necessary to retransmit the page in the received image data, the calculation unit 17 recalculates the required reception time required to retransmit the excess page,
A new reception end time is calculated by adding the displayed reception end time and the excess reception required time, and the result is displayed again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine, and more particularly to a facsimile machine that displays an accurate reception end time without causing a difference between the displayed reception end time and the actual reception end time.

[0002]

2. Description of the Related Art Conventionally, as for a facsimile machine, a "data communication system" described in Japanese Patent Laid-Open No. 61-20472.
Has been reported. This is wasteful because the transmitting side facsimile device is provided with a calculating means for calculating the data transmission time required from the transmission data amount, and the transmission time calculated by the calculation means is transmitted prior to the data transmission. This has the advantage of reducing waiting time and monitoring time and improving work efficiency.

More specifically, the clock unit sends the current time to the arithmetic unit in response to a command from the main controller, and the arithmetic unit controls the main controller to send the required time based on the image data sent from the data memory and the number of pages of the document. Is calculated. The transmission rate depends on the receiving capability of the receiving station. Therefore, in the case of receiving stations having different receiving capabilities, the calculation is performed according to the corresponding transmission speed. The main control unit instructs the transmission control unit to transmit the transmission completion time to the receiving station.

In this way, since the transmission completion time is sent and displayed on the operation display section of the receiving station prior to the transmission of the image data, it is possible to recognize when the recording being received is completed. It is possible to efficiently wait for the reception completion such as performing other work until the time arrives.

[0005]

As described above, in the conventional facsimile apparatus, the required transmission time calculated on the basis of the amount of transmission data is transmitted prior to the transmission of the image data, so that the receiving side is not wasted. The purpose was to reduce waiting time. However, in the actual transmission of image data, when a transmission error occurs due to the deterioration of the communication line state or the like, as a countermeasure against this, a resending operation of an error page is performed between the transmitting side and the receiving side during communication. Therefore, there is a difference between the time required to receive the image data and the actual time required to receive the image data.
There is a problem in that the operator is forced to waste a waiting time, and the effect of reducing the waiting time is diminished.

Therefore, according to the first aspect of the invention, even when there is an error page resending operation due to the occurrence of a transmission error of image data due to deterioration of the communication line state, the reception end displayed on the operation display unit is completed. An object of the present invention is to provide a facsimile device that can display an accurate reception end time without causing a difference between the time and the actual reception end time.

Therefore, according to the second aspect of the present invention, even if the transmission rate is changed during the communication due to the occurrence of the transmission error of the image data due to the deterioration of the communication line state, the reception end displayed on the operation display unit is completed. An object of the present invention is to provide a facsimile device that can display an accurate reception end time without causing a difference between the time and the actual reception end time. Therefore, in the invention according to claim 3, when the communication is performed based on the ECM system, even if the frame is retransmitted due to the occurrence of the transmission error of the image data due to the deterioration of the communication line state or the like, the operation display is displayed. An object of the present invention is to provide a facsimile device that can display an accurate reception end time without causing a difference between the reception end time and the actual reception end time.

[0008]

According to the first aspect of the present invention,
In order to solve the above-mentioned problems, information receiving means for receiving image data, image data amount information and document page number information transmitted from a transmitting side facsimile device via a communication line, and image data received by the information receiving means. The required reception time calculation means for calculating the required reception time based on the quantity information and the document page number information, the clock means for indicating the current time information, the current time information represented by the clock means and the required reception time calculation means. An information adding means for adding the calculated required reception time to calculate the reception end time, and a time display means for displaying the reception end time added by the information adding means are provided, and the reception end time is displayed on the time display means. After displaying the time,
When a transmission error that requires page resending occurs in the image data received by the information receiving means, the reception required time calculating means recalculates the excess reception necessary time required for page resending. Characterize.

According to a second aspect of the present invention, in order to solve the above problems, in the facsimile apparatus according to the first aspect, the image data received by the information receiving means after the reception end time is displayed on the time display means. When a transmission error that requires page resending occurs in the above, when the transmission rate of image data is changed, the reception required time calculating means recalculates the excess reception required time required for page resending. And

According to a third aspect of the present invention, in order to solve the above-mentioned problems, in a facsimile apparatus which receives image data transmitted from a transmitting side facsimile apparatus through a communication line based on an ECM error control method, the transmitting side Information receiving means for receiving the original page number information and the number of frames of image data for each page transmitted from the facsimile device, and the original page number information and the number of image data frames for each page received by the information receiving means Required time calculation means for calculating the required reception time based on the above, clock means for indicating current time information, current time information represented by the clock means, and required reception time calculated by the required reception time calculation means And a time display means for displaying the reception end time added by the information addition means. When a transmission error that requires frame retransmission is generated in the image data received by the information receiving means after the reception end time is displayed on the time display means, It is characterized in that the required reception time required to retransmit the frame is recalculated.

[0011]

According to the present invention, the information receiving means receives the image data, the image data amount information and the manuscript page number information transmitted from the transmitting side facsimile device through the communication line, and then the required reception time. The calculation means calculates the required reception time based on the received image data amount information and the document page number information. Next, the information addition means adds the present time information represented by the clock means and the required reception time calculated by the required reception time calculation means to calculate the reception end time, and the calculated reception end time is displayed by the time display means. To display. Here, after the reception end time is displayed on the time display means, if a transmission error that requires page resending occurs in the image data received by the information receiving means, the required time calculating means resends the excess page. , The information addition means adds the reception end time displayed on the time display means and the excess reception time recalculated by the reception time calculation means, and newly adds The reception end time is calculated, and the calculated new reception end time is displayed on the time display means.

According to a second aspect of the present invention, in the facsimile apparatus according to the first aspect, after the reception end time is displayed on the time display means, the image data received by the information receiving means may have a transmission error requiring page resending. If it happens,
When the transmission rate of the image data is changed, the required reception time calculation means recalculates the required reception time required for page retransmission of the excess, and then the information addition means determines the reception end time displayed on the time display means. A new reception end time is calculated by adding the excess reception required time recalculated by the reception required time calculation means, and the calculated new reception end time is displayed on the time display means.

According to the third aspect of the invention, in the facsimile apparatus which receives the image data transmitted from the transmitting side facsimile apparatus via the communication line based on the ECM error control method, the information receiving means transmits from the transmitting side facsimile apparatus. Based on the document page number information and the image data frame number of each page received by the information receiving unit, the reception required time calculating means receives the document page number information and the frame number of the image data of each page. Calculate the time required for reception. Next, the information addition means adds the present time information represented by the clock means and the required reception time calculated by the required reception time calculation means to calculate the reception end time, and the calculated reception end time is displayed by the time display means. To display. Here, after the reception end time is displayed on the time display means, if a transmission error that requires frame retransmission occurs in the image data received by the information reception means, the reception required time calculation means retransmits the excess frames. Recalculates the reception time required for
Next, the information adding means adds the reception end time displayed on the time display means and the excess reception necessary time recalculated by the reception necessary time calculating means to calculate a new reception end time,
The calculated new reception end time is displayed on the time display means.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) First, the system configuration of a facsimile apparatus will be described. FIG. 1 shows an embodiment of the present invention (claims 1 to 1).
FIG. 3 is a system configuration diagram of the facsimile apparatus of 3).

1 (a) and 1 (b) show a transmitting side facsimile apparatus and a receiving side facsimile apparatus, respectively. The operation display units 1 and 11 allow the operator to operate the operation keys to input operation information and display the operation information to the operator from the display unit. In addition, the display unit displays the reception end time. The reading units 2 and 12 optically read the transmission document set on the document table to convert the electrical signal into image data, and sequentially count the number of pages of the document while reading the document. Recording unit 3,
Reference numeral 13 physically records the image data received via the communication line, the image data read by the device itself, and the like on a recording sheet. The control units 4 and 14 control each unit in the own device according to a program.

The modem units 5 and 15 have an encoding / decoding unit, a modem unit and an HDLC unit inside. The encoding / decoding unit converts the image data into the MH system, the MR system, or the M system.
The facsimile compression code data (image data) is encoded based on the MR system or the like, and the facsimile compression code data (image data) is decoded and converted into image data. The modem section modulates facsimile compression code data (image data) into an analog signal and demodulates the received analog signal into facsimile compression code data (image data). HDLC
The (High-level DataLink Control Procedure) unit has a frame structure of a binary code signal system, and frames the control signal of the binary control procedure and the image data of the ECM error control system.

The NCUs 6 and 16 control connection and disconnection of communication lines. The calculation units 7 and 17 set various parameters and calculate the required reception time based on a predetermined calculation formula. The storage units 8 and 18 store the image data of the document read by the reading units 2 and 12, the data amount of the image data, the received image data, and the encoded image data.
The clock units 9 and 19 output current time data.

FIG. 2 shows an embodiment of the present invention (claims 1 to 3).
FIG. 3 is a diagram showing an example of a communication procedure of the facsimile apparatus of FIG. As shown in FIG. 2, as a pre-process (P1), the transmitting-side facsimile apparatus sends a ringing tone CNG signal to the receiving-side facsimile apparatus via the PSTN line to originate a call. The receiving facsimile machine transmits the called terminal identification signal CED and then the non-standard function identification signal NSF after detecting the CNG signal.

In response to this, the transmitting facsimile machine
In normal times (claims 1 and 2), the data amount of transmission data and the number of pages are set in the non-standard function setting signal NSS, and the data is transmitted. In the ECM method (claim 3), the number of pages of transmission data and the number of frames of each page are set to the non-standard function setting signal N.
Set to SS and send. The sending facsimile machine then initiates a training check TCF.

Next, the receiving facsimile machine transmits the reception preparation confirmation signal CFR after receiving the training check TCF. Next, when the transmission side facsimile device receives the reception preparation confirmation signal CFR, it transmits the image data of the first page of the document. In response to this, the receiving side facsimile device stores the image data of the first page of the received document in the storage unit 18.

Next, in the middle processing (P2), the transmitting side facsimile apparatus transmits the multi-page signal MPS because there is the next page. The receiving facsimile machine sends a message confirmation MCF. Next, the transmission side facsimile device transmits the image data of the second page. Next, as post-processing (P3), the transmitting-side facsimile device transmits the procedure end signal EOP. Upon receiving the message confirmation signal MCF from the receiving side facsimile apparatus, the transmitting side facsimile apparatus transmits the disconnection command signal DCN to end the communication.

As shown in the middle processing (4), when the transmission rate is changed during the communication, the multi-page signal MP indicating that there is the next page is sent from the sending facsimile machine.
When S is transmitted, the receiving facsimile machine judges that the image quality of the image data received based on a predetermined algorithm is poor, and the retraining negative RTN.
To send. In response to this, the sending facsimile machine
The non-standard function setting signal NSS is transmitted. Then, the training check TCF is started. In response to this, the receiving side facsimile device transmits a reception preparation confirmation signal CFR.

Next, the operation of the facsimile apparatus according to the present invention will be described. First, in the facsimile apparatus on the transmission side, the operator sets a document on the document table of the reading unit 2 and operates the calling number and the start key of the other party on the operation display unit 1. Next, the reading unit 2 starts reading the original, and the image data output from the reading unit 2 is sequentially accumulated in the storage unit 8. Further, the reading unit 2 sequentially counts the number of pages of the document while reading the document. After the storage of the image data of the original document in the storage unit 8, the control unit 4 calculates the data amount of the original document stored in the storage unit 8, and stores the data amount of the original document and the number of pages of the original document in the storage unit 8. Stored together with image data. Next, the transmission side facsimile device, based on the called number of the other party input from the operation display unit 1, the NCU.
In section 6, the receiving side facsimile machine is called through the communication line. Here, when the receiving side facsimile device responds, facsimile communication is started.

Next, in the facsimile machine on the transmitting side,
The control unit 4 reads the data amount of the document and the page number of the document stored in the storage unit 8, and sets the data amount of the document and the page number of the document in the HDLC unit of the modem unit 5. In phase B as a preprocessing step, the modem unit 5 sets the data amount of the original document and the number of pages of the original document in the non-standard function setting signal NSS and transmits them to the receiving side facsimile apparatus.

On the other hand, in the facsimile machine on the receiving side,
The modem unit 15 receives the non-standard function setting signal NSS transmitted from the transmitting side facsimile apparatus via the communication line, and the HDLC unit of the modem unit 5 detects the data amount of the document and the number of pages of the document. The control unit 14 sends the data amount of the document and the number of pages of the document to the calculation unit 17. Next, in the receiving-side facsimile apparatus, the calculation unit 17 determines the time required for preprocessing, the time required for intermediate processing between pages, the time required for postprocessing after image data transmission, the data amount of a document, and the transmission speed. The required reception time is calculated by adding the calculated image data reception time.

Next, in the receiving side facsimile apparatus,
The control unit 14 reads the current time from the clock unit 19 and sets it in the calculation unit 17. The calculation unit 17 calculates the reception end time by adding the reception required time to the current time. Control unit 1
4 receives the calculation result from the calculation unit 17 and displays the reception end time on the operation display unit 11. Next, a method of calculating the required reception time calculated by the calculation unit 17 will be described.

FIG. 3 shows an example of the time required for reception of the facsimile apparatus according to the present invention. As shown in FIG. 3, the image data reception time G is obtained by dividing the image data amount D of the document transmitted in the preprocessing from the transmitting side facsimile device by the transmission data amount d of the modem unit 16 per unit time. If the number of original pages is N, the required reception time T is the preprocessing P1,
From the middle treatment P2 and the post treatment P3,

[0028]

[Equation 1]

It is calculated by The required reception time T shown in Expression 1 is an operation during normal communication, and is the same as that described in the related art. Next, the operation when the transmission speed (transmission data amount d per unit time) is changed during communication due to the occurrence of an image data transmission error due to deterioration of the communication line condition or the like will be described.

FIG. 4 is a flow chart showing the receiving operation of the facsimile apparatus according to the present invention. First, in the pre-processing, the transmitting side facsimile device transmits the data amount and the number of pages of the document to the receiving side facsimile device. Here, in the reception side facsimile apparatus, in the pre-processing, the modem section 15 receives the non-standard function setting signal NSS transmitted from the transmission side facsimile apparatus via the communication line, and the HDLC section of the modem section 5 transmits the original document. The data amount, the number of pages of the document, and the data transmission speed are received (process S1).

The calculation unit 17 calculates the time required for preprocessing, the time required for intermediate processing between pages, the time required for postprocessing after image data transmission, and the image data reception time calculated based on the original data amount and transmission speed. Is added to calculate the required reception time. Next, the calculation unit 17 adds the above-described required reception time to the current time to calculate the reception end time (Process S).
2).

Next, the control section 14 receives the calculation result from the calculation section 17 and displays the reception end time on the operation display section 11 (process S3). Next, the modem unit 15 receives the image data for one page of the document, and the control unit 14 stores the received data amount for each page in the storage unit 18 (process S).
4). Next, by determining whether the image quality of the received image data is good or bad based on a predetermined algorithm, it is possible to determine whether or not an image data transmission error due to deterioration of the communication line condition occurs while receiving the image data. It is determined (process S5).
If no transmission error has occurred, it is determined whether the received page is the last page (process S6). If the received page is not the final page, the message confirmation is performed in phase D as the middle process, and then the process proceeds to process S4 (process S7). On the other hand, if the received page is the last page, the line is disconnected in phase E as a post-process (process S7), and the process ends.

On the other hand, if a transmission error occurs in step S5, the transmission facsimile machine receives the non-standard function setting signal after receiving the retraining negative RTN in order to prevent the transmission error from occurring. NS
It is determined by S whether or not the data transmission speed d has been decreased to d '(process S9). When the data transmission rate is changed, the calculating unit 17 requires the excess reception time t ′.
Is calculated (process S10), and the control unit 14 first adds the excess reception required time t ′ calculated by the calculation unit 17 to the reception end time displayed on the operation display unit 11 and causes the operation display unit 11 to re-display. (Processing S11). Next, the modem unit 15 receives the image data for one page of the original retransmitted from the facsimile apparatus on the transmitting side (step S12). Next, process S
Go to 6.

On the other hand, when the data transmission rate is not changed, the arithmetic unit 17 calculates the excess reception required time t '(step S13), and the control unit 14 first causes the operation display unit 11 to operate.
The excess reception required time t'calculated by the calculation unit 17 is added to the reception end time displayed on the operation display unit 11 and the result is displayed again on the operation display unit 11 (step S14). Next, the modem unit 15 receives the image data for one page of the original retransmitted from the transmitting side facsimile apparatus (step S15). Then, the process proceeds to S6.

Next, a method of calculating the excess reception required time t'calculated by the calculation unit 17 will be described. FIG. 5 shows an example of the configuration of the required reception time of the facsimile apparatus according to the present invention. As shown in FIG. 5, the total image data amount is D, the image data amount of each received page is D1, D2, D3, ...
... Dm, and P4 is the time required for the medium processing relating to the change of the transmission rate due to the occurrence of the transmission error.

When the number of original pages is m, the excess reception time t'is determined by preprocessing P1, middle processing P2 and postprocessing P2.
From 3,

[0037]

[Equation 2]

It is calculated by If only M pages of image data are retransmitted without changing the transmission rate,
The excess reception time t ′ is

[0039]

(Equation 3)

It is calculated by Hereinafter, the function and effect of the invention according to claim 1 will be described. The modem unit 15 receives the image data, the image data amount information and the document page number information set in the non-standard function setting signal NSS transmitted from the transmitting side facsimile device via the communication line, and then the calculating unit 17 The required reception time is calculated based on the received image data amount information and the document page number information. Next, the calculation unit 17 calculates the reception end time by adding the present time information represented by the clock unit 19 and the required reception time calculated by the calculation unit 17,
The calculated reception end time is displayed on the operation display unit 11.

Here, after the reception end time is displayed on the operation display unit 11, the quality of the image quality of the received image data is judged based on a predetermined algorithm to determine the communication line status during the reception of the image data. Modem part 1 due to deterioration of
When a transmission error that requires page resending occurs in the image data received in step 5, the computing unit 17 recalculates the required reception time required for resending pages, and then the computing unit 1
7 adds the reception end time displayed on the operation display unit 11 and the excess reception required time recalculated by the calculation unit 17 to calculate a new reception end time, and calculates the calculated new reception end time. It is displayed on the operation display unit 11.

Therefore, even when there is an error page resend operation due to the occurrence of an image data transmission error due to the deterioration of the communication line condition, the reception end time displayed on the operation display unit and the actual reception end time are displayed. The exact reception end time can be displayed without any difference. Hereinafter, the function and effect of the invention according to claim 2 will be described.

After the reception end time is displayed on the operation display unit 11, when a transmission error requiring page resending occurs in the image data received by the modem unit 15, based on the received non-standard function setting signal NSS. When the transmission rate of the image data is changed by the calculation unit 17, the calculation unit 17 recalculates the required reception time required for retransmission of excess pages, and then the calculation unit 17
Is displayed on the operation display unit 11 and the reception end time and the calculation unit 1
A new reception end time is calculated by adding the excess reception required time recalculated in 7, and the calculated new reception end time is displayed on the operation display unit 11.

Therefore, even if the transmission rate is changed during the communication due to the occurrence of the transmission error of the image data due to the deterioration of the state of the communication line, the reception end time displayed on the operation display unit and the actual reception end time are displayed. The exact reception end time can be displayed without any difference. (Embodiment 2) This embodiment (claim 3) can be applied to the facsimile apparatus described in FIG. In this embodiment, a characteristic portion of the present invention (claim 3) will be specifically described.

The operation when a frame having an error as a result of reception based on the ECM error control method is retransmitted will be described. The ECM error control system was added as an optional function of the G3 facsimile standard in the 1988 version recommendation. Page selection correction ARQ (Automati
c RepeatRequest) method, and
6 bytes are set as one frame, the 256 frames are transmitted as one block, the frame number in error is returned from the receiving facsimile machine, and the transmitting facsimile machine only sends the image data of the frame specified by the frame number. Is to be retransmitted.

FIG. 6 is a diagram showing an example of the communication procedure of the ECM error control system of the facsimile apparatus according to the embodiment of the present invention. In the ECM error control method, transmission data is applied to the HDLC frame structure and frames 0 to 255 are sequentially transmitted. As shown in FIG. 6, the transmission side facsimile device sequentially transmits frames 0 to 255 of the transmission data to the reception side facsimile device. The transmission side facsimile device transmits the partial page signal PPS and the procedure end EOP to the reception side facsimile device when the frame 255 has been transmitted.

On the other hand, the receiving facsimile machine checks the FCS error of the received HDLC frame, and since frame 0 and frame 2 were not received normally, frame 0 and frame 2 which need to be retransmitted are designated. The partial page request PPR is sent to the sending facsimile machine. Next, the sending facsimile machine retransmits frame 0 and frame 2 to the receiving facsimile machine. Then, the sending facsimile machine transmits the partial page signal PPS and the procedure end EOP to the receiving facsimile machine. On the other hand, since the frame 2 was not received normally, the receiving side facsimile device transmits a partial page request PPR designating frame 2 that needs to be retransmitted to the transmitting side facsimile device.

Next, the transmitting facsimile machine retransmits the frame 2 to the receiving facsimile machine. Then
The transmitting side facsimile device transmits the partial page signal PPS and the procedure end EOP to the receiving side facsimile device. On the other hand, since the frame 2 is normally received, the receiving side facsimile device transmits the message confirmation MCF to the transmitting side facsimile device.

Next, the operation of the facsimile apparatus according to the present invention will be described. First, in the facsimile apparatus on the transmission side, the operator sets a document on the document table of the reading unit 2 and operates the calling number and the start key of the other party on the operation display unit 1. Next, the reading unit 2 starts reading the original, and the image data output from the reading unit 2 is sequentially accumulated in the storage unit 8. Further, the reading unit 2 sequentially counts the number of pages of the document while reading the document. After the storage of the image data of the original document in the storage unit 8, the control unit 4 calculates the data amount of the original document stored in the storage unit 8, and stores the data amount of the original document and the number of pages of the original document in the storage unit 8. Stored together with image data. Next, the transmission side facsimile device, based on the called number of the other party input from the operation display unit 1, the NCU.
In section 6, the receiving side facsimile machine is called through the communication line. Here, when the receiving side facsimile device responds, facsimile communication is started.

In the transmitting side facsimile apparatus, the control unit 4 reads out the data amount of the document and the page number of the document stored in the storage unit 8, and sets the data amount of the document and the page number of the document in the HDLC unit of the modem unit 5. To do. In phase B as a pre-processing stage, the modem unit 5 sets the number of pages of the original document and the number of frames of each page in the non-standard function setting signal NSS and transmits them to the receiving side facsimile apparatus.

On the other hand, in the facsimile machine on the receiving side,
The modem unit 15 receives the non-standard function setting signal NSS transmitted from the transmitting side facsimile apparatus via the communication line, and the HDLC unit of the modem unit 5 detects the number of pages of the document and the number of frames of each page. The control unit 14 sends the number of pages of this document and the number of frames of each page to the calculation unit 17.
Next, in the receiving side facsimile device, the calculation unit 17
Is the time Z required for pre-processing, the time required for medium processing between blocks of image data (256 frames), the time required for post-processing after image data transmission, and the image data calculated based on the original data amount and transmission speed. The reception time is added to calculate the required reception time.

Next, in the receiving side facsimile machine,
The control unit 14 reads the current time from the clock unit 19 and sets it in the calculation unit 17. The calculation unit 17 calculates the reception end time by adding the reception required time to the current time. Control unit 1
4 receives the calculation result from the calculation unit 17 and displays the reception end time on the operation display unit 11. Next, a method of calculating the required reception time calculated by the calculation unit 17 will be described.

FIG. 7 shows an example of the time required for reception of the facsimile apparatus according to the present invention. A method of calculating the required reception time will be described. As shown in FIG. 7, the frames of each page are F1, F2, ... Fn, the number of frames is n, and the number of blocks Bn of each page is

[0054]

[Equation 4]

This is the integer value part obtained in. here,
Number of medium processing P5 existing between blocks in each page J
Is

[0056]

(Equation 5)

It is Therefore, the required reception time Te is 1
From the transmission time dn per frame,

[0058]

(Equation 6)

It is calculated by Normally, when one block of image data is normally received after the pre-processing, the middle processing P5 when normally received is performed. On the other hand, if there is a transmission error due to the deterioration of the communication line condition, the receiving side facsimile device sends the frame number of the error in the block to the transmitting side facsimile device, and the intermediate processing P5 (FIG. 7)). Next, the control unit 14 causes the calculation unit 17 to add an excess of the required reception time required for frame retransmission to the reception end time displayed on the operation display unit 11 first, and causes the operation display unit 11 to display the result again.

FIG. 8 shows an example of the configuration of the required reception time including the excess required reception time of the facsimile apparatus according to the present invention. As shown in FIG. 8, when an error occurs in the image data of the first page due to the state of the communication line, a frame in which an error in the block occurs in the intermediate process P6 from the receiving side facsimile device to the transmitting side facsimile device. Send the number.

Next, the transmission side facsimile device transmits a retransmission frame G11 'as image data of the corresponding frame number to the reception side facsimile device. Next, the middle process P5 after frame retransmission is performed. Here, a method of calculating the excess reception required time te 'will be described. If the time required for middle processing for frame retransmission is P6 and the number of error frames is f, the excess reception required time te ′ is

[0062]

(Equation 7)

It is calculated by FIG. 9 is a flow chart showing the receiving operation of the facsimile apparatus according to the present invention. First, in the pre-processing, the transmitting side facsimile device transmits the data amount and the number of pages of the document to the receiving side facsimile device.

Here, in the receiving side facsimile apparatus, in the pre-processing, the modem section 15 has the non-standard function setting signal N transmitted from the transmitting side facsimile apparatus via the communication line.
The SS is received, and the HDLC unit of the modem unit 5 receives the data amount of the document, the number of pages of the document, and the data transmission speed (process S21). The calculation unit 17 adds the time required for pre-processing, the time required for intermediate processing between pages, the time required for post-processing after image data transmission, and the image data reception time calculated based on the data amount and transmission speed of the document. The required reception time Te is calculated. Next, the calculation unit 17 calculates the reception end time by adding the reception required time to the current time (process S22).

Next, the control unit 14 receives the calculation result from the calculation unit 17 and displays the reception end time on the operation display unit 11 (process S23). Next, the modem unit 15 uses the image data for one block of the original document and the FCS of the HDLC frame.
The error is received and stored in the storage unit 18. Next, the control unit 1
4 stores the received data amount of each block in the storage unit 18 (process S24).

Next, the control unit 14 determines whether or not there is an error frame having an FCS error in the HDLC frame of the image data for one block received by the modem unit 15 (process S25). If there is an error frame, the calculation unit 17 calculates the excess reception required time te '(step S26), and the calculation unit 17 first calculates the reception end time displayed on the operation display unit 11 by the control unit 14. A reception end time is newly calculated by adding the calculated excess reception required time te ', and the result is re-displayed on the operation display unit 11 (process S).
27). Next, the receiving side facsimile device sends the frame number of the error in the block to the transmitting side facsimile device (step S28).

Next, the receiving side facsimile device receives the retransmission frame G11 'as the image data of the corresponding frame number from the transmitting side facsimile device (step S29).
Next, it is determined whether the reception of the image data for one page is completed (process S30). When the reception of the image data for one page is not completed in the process S30, a frame retransmission process (P6) is performed between blocks in one page (process S31).

On the other hand, when the reception of the image data for one page is completed in the process S30, it is determined whether or not the reception of the image data for the final page is completed (process S32).
When the reception of the image data for the final page is not completed in the process S32, the intermediate process (P5) between the pages is performed (process S33). On the other hand, when the reception of the image data for the final page is completed in the process S32, the post-process (P3)
Is performed (processing S34).

The operation and effect of the invention according to claim 3 will be described below. In a facsimile device that receives image data transmitted from the transmitting facsimile device via a communication line based on the ECM error control method, the modem unit 15 is set to a non-standard function setting signal NSS transmitted from the transmitting facsimile device. Receiving the document page number information and the frame number of the image data for each page, the calculation unit 17 receives the document page number information and the frame number of the image data for each page, and the required reception time Is calculated. Next, the calculation unit 17 calculates the reception end time by adding the current time information represented by the clock unit 19 and the required reception time calculated by the calculation unit 17, and the calculated reception end time is displayed on the operation display unit 11 To display.

Here, after the reception end time is displayed on the operation display unit 11, when a transmission error that requires frame retransmission occurs in the image data based on the FCS error of the HDLC frame received by the modem unit 15, , The calculation unit 17 recalculates the required reception time required for frame retransmission, and then the calculation unit 17 displays the reception end time displayed on the operation display unit 11 and the excess amount recalculated by the calculation unit 17. The required reception time is added to calculate a new reception end time, and the calculated new reception end time is displayed on the operation display unit 11.

Therefore, when the communication is performed based on the ECM system, even if the frame is retransmitted due to the occurrence of the transmission error of the image data due to the deterioration of the communication line state, the reception end time displayed on the operation display unit is An accurate reception end time can be displayed without causing a difference in the actual reception end time.

[0072]

According to the present invention, when there is an error page resending operation or a page resending or a frame resending after the change of the transmission rate due to the occurrence of the transmission error of the image data due to the deterioration of the communication line condition or the like. Another object of the present invention is to provide a facsimile apparatus capable of displaying an accurate reception end time without causing a difference between the reception end time displayed on the operation display unit and the actual reception end time.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a facsimile apparatus according to an embodiment (claims 1 to 3) of the present invention.

FIG. 2 is a diagram showing an example of a communication procedure of a facsimile apparatus according to an embodiment (claims 1 to 3) of the present invention.

FIG. 3 is a configuration example of a time required for reception of the facsimile apparatus according to the present invention.

FIG. 4 is a flowchart showing a receiving operation of the facsimile apparatus according to the present invention.

FIG. 5 is a configuration example of a required reception time of the facsimile apparatus according to the present invention.

FIG. 6 is an E of a facsimile apparatus according to an embodiment of the present invention.
It is a figure which shows an example of the communication procedure of a CM error control system.

FIG. 7 is an example of a configuration of a reception required time of the facsimile apparatus according to the present invention.

FIG. 8 is a configuration example of a required reception time including an excessive required reception time of the facsimile apparatus according to the present invention.

FIG. 9 is a flowchart showing a receiving operation of the facsimile apparatus according to the present invention.

[Explanation of Codes] 1,11 Operation display unit (time display unit) 2,12 Reading unit 3,13 Recording unit 4,14 Control unit 5,15 Modem unit (information receiving unit) 6,16 NCU unit 7,17 Calculation Section (reception required time calculating means, information adding means) 8,18 storage section 9,19 clock section (clock means)

Claims (3)

[Claims] 1. An information receiving means for receiving image data, image data amount information and document page number information transmitted from a transmitting side facsimile device via a communication line, and image data amount information received by the information receiving means. And a required reception time calculating means for calculating the required reception time based on the document page number information, a clock means for indicating the current time information, the current time information represented by the clock means and the required reception time operation means. The information addition means for calculating the reception end time by adding the required reception time and the time display means for displaying the reception end time added by the information addition means, and the reception end time is displayed on the time display means. After the display, when a transmission error that requires page resending occurs in the image data received by the information receiving means, the excess amount of pages is received by the reception time calculating means. Facsimile apparatus characterized by re-calculating the required reception time required for transmission. 2. The transmission speed of the image data is changed when a transmission error requiring page resending occurs in the image data received by the information receiving means after the reception end time is displayed on the time display means. 2. The facsimile apparatus according to claim 1, wherein the reception required time calculating means sometimes recalculates a reception required time required for resending the page. 3. A facsimile apparatus which receives image data transmitted from a transmitting facsimile apparatus via a communication line based on an ECM error control method, and original page number information and each page transmitted from the transmitting facsimile apparatus. Information receiving means for receiving the number of frames of image data for each page, and required reception time calculation for calculating the required reception time based on the document page number information received by the information receiving means and the number of frames of image data for each page Means, clock means for indicating current time information, and information adding means for calculating the reception end time by adding the current time information represented by the clock means and the required reception time calculated by the required reception time calculation means. And a time display means for displaying the reception end time added by the information addition means, and the reception end time is displayed on the time display means. After that, when a transmission error that requires frame retransmission occurs in the image data received by the information receiving means, the reception required time calculating means recalculates the excess reception required time required for frame retransmission. A facsimile device characterized by the above.