JP3245077B2 - Facsimile communication method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a facsimile machine,
In particular, the present invention relates to a facsimile communication method capable of physically transmitting information of a plurality of documents by transmitting one partial page.

[0002]

2. Description of the Related Art Conventionally, in an ECM (error correction mode), one partial page has 256 frames, and one frame has 256 bytes. A frame number is added to each frame, and communication is performed in HDLC format. Here, one physical page information is 64K
If transmission is not possible within a byte, that is, within one partial page, subsequent information is transmitted as the next partial page.

[0003]

Here, the manuscript information is
The amount of coding varies greatly depending on the size, resolution, reading mode, and the like. Here, for example, 8 pel / m in the main scanning direction
When reading A4 size information in the character reading mode at m and the sub-scanning direction of 3.85 lines / mm, the information (encoding amount) per page may be about 10 Kbytes. Performing the procedural operation for each physical page was useless. On the other hand, in halftone reading and the like, it is rare that a plurality of originals are physically included in transmission of one partial page, and it is useless to physically transmit information of a plurality of originals in transmission of one partial page. Was.

[0004]

According to a first aspect of the present invention, there is provided:
In a facsimile communication method capable of physically transmitting a plurality of pieces of document information as one partial page, if reading in the character mode is selected, physically transmitting a plurality of pieces of document information as one partial page, If reading in the mode is selected, it becomes possible not to physically transmit a plurality of pieces of document information as one partial page. Thus, in the character mode reading in which there is a high probability that a plurality of pieces of document information are physically included in one partial page, a plurality of pieces of document information are physically transmitted as one partial page to reduce communication time. In the halftone mode reading where there is a low probability that a plurality of pieces of document information are physically contained in one partial page, since conventional transmission does not physically transmit a plurality of pieces of document information as one partial page, communication reliability is high. It is more convenient and convenient for users.

According to a third aspect of the present invention, there is provided a facsimile communication method capable of physically transmitting information of a plurality of originals as one partial page.
Only the A3 size transmission does not physically transmit a plurality of pieces of document information as one partial page, but it is possible to physically transmit a plurality of pieces of document information as one partial page at other resolutions and document sizes. Was. Thus, an A3 document size with a low probability of physically containing a plurality of pieces of document information in one partial page, 400 dp
In the reading of i, since the conventional transmission does not physically transmit a plurality of pieces of document information as one partial page, the reliability of communication is increased. Since there is a high probability that a plurality of pieces of document information are physically contained in a single page, the plurality of pieces of document information are physically transmitted as one partial page, and the communication time can be reduced, which is convenient for the user.

[0006]

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

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

Reference numeral 2 denotes an NCU (network control unit) for connecting a telephone network to a terminal of the line and controlling connection of a telephone exchange network or switching to a data communication path in order to use the telephone network for data communication and the like. Or hold the loop. The NCU 2 connects the telephone line 2a to the telephone if the signal level (signal line 20a) from the control circuit 20 is "0", and connects the telephone line 2a to the facsimile apparatus if the signal level is "1". Is to be connected to. In a normal state, the telephone line 2a is connected to the telephone 4 side.

Reference numeral 4 denotes a telephone.

Reference numeral 6 denotes a hybrid circuit which separates a transmission system signal and a reception system signal, sends a transmission signal from the addition circuit 12 to the telephone line 2a via the NCU 2, and transmits a signal from the other party via the NCU 2 And sends it to the modem 8 via the signal line 6a.

Reference numeral 8 denotes a modulator / demodulator. 8, V. 21, V.I. 27ter, V.A. 29, V.S. 1
7, V. This is a modulator / demodulator that performs modulation and demodulation based on the signal line 34, and each transmission mode is specified by the signal line 20c. 8 inputs the signal output to the signal line 20b,
The modulated data is output to the signal line 8a, the received signal output to the signal line 6a is input, and the demodulated data is output to the signal line 8b.

Reference numeral 10 denotes a circuit for transmitting an ANSam signal. When a signal of a signal level "1" is output to the signal line 20d, the ANSam signal is transmitted to the signal line 10a and the signal level of "0" is output to the signal line 20d. Is output, no signal is output to the signal line 10a.

Reference numeral 12 denotes an addition circuit which inputs information on the signal line 8a and information on the signal line 10a, and outputs a result of the addition to the signal line 12a.

Reference numeral 14 denotes a reading circuit which outputs read data to a signal line 14a.

Reference numeral 16 denotes a recording circuit for sequentially recording information output to the signal line 20e line by line.

Reference numeral 18 denotes a memory circuit which stores raw information of read data or encoded information.
Used to store received information or decrypted information.

Reference numeral 22 denotes a resolution selection button, and when the button is pressed, a pressing pulse is generated on the signal line 22a.

Reference numeral 24 denotes a resolution display circuit.
When a clear pulse is generated at 0f, the standard mode (8 pel / mm in the main scanning direction, 3.85 line / m in the sub scanning direction)
m), and thereafter, every time a pressing pulse is generated on the signal line 22a, the fine mode (8 pel / mm in the main scanning direction,
Sub-scanning direction 7.7 line / mm) → super fine mode (main scanning direction 8 pel / mm, sub-scanning direction 15.
4 line / mm) → ultra fine mode (400 dpi in the main scanning direction, 400 dpi in the sub scanning direction) → standard mode. Here, the resolution and display circuit are
When "standard mode" is displayed, a signal "0" is output to the signal line 24a, and when "fine mode", "super fine mode", and "ultra fine mode" are displayed, respectively, Signals "1", "2", and "3" are output to 24a.

Reference numeral 26 denotes a document size detection circuit.
4, B4, and A3 sizes can be detected. When the size is A4, the signal "0" is sent to the signal line 26a. When the size is B4, the signal "1" is sent to the signal line 26a.
The signal "2" is output to 6a.

Reference numeral 28 denotes a reading mode selection button, and when the button is pressed, a pressing pulse is generated on the signal line 28a.

Reference numeral 30 denotes a reading mode display circuit, which displays "character reading mode" when a clear pulse is generated on the signal line 20g, and thereafter displays "photograph reading mode" every time a pressing pulse is generated on the signal line 28a. → "Character reading mode" is displayed. Here, the reading mode display circuit is
When "Character reading mode" is displayed, signal line 3
A signal of signal level "0" is output to 0a, and when "photograph reading mode" is displayed, a signal of signal level "1" is output to signal line 30a.

Reference numeral 20 denotes a facsimile apparatus capable of physically transmitting a plurality of pieces of document information for transmission of one partial page. According to a transmission mode of the document information to be transmitted, a plurality of pieces of document information are physically converted to one partial page. Determine whether to transmit. Here, if reading in the character mode is selected, information on a plurality of originals is physically transmitted as one partial page, and if reading in the photograph mode is selected, a plurality of originals is physically transmitted. Do not transmit information as one partial page. This is a control circuit that mainly performs the above control.

FIGS. 2, 3 and 4 show the control circuit 20 of FIG.
Is shown.

In FIG. 2, at S2, a clear pulse is generated on the signal line 20f, and the resolution display circuit 24 is displayed as "standard mode".

In S4, a clear pulse is generated on the signal line 20g, and the reading mode display circuit 30 is set to the "character reading mode".
Is displayed.

In S6, a signal of signal level "0" is output to the signal line 20a, and the CML is turned off.

In S8, a signal of the signal level "0" is output to the signal line 20d, and the ANSam signal is not transmitted.

In S10, it is determined whether or not transmission has been selected. If transmission has been selected, the process proceeds to S14, and if transmission has not been selected, the process proceeds to S12 to perform other processing.

At S14, a signal of signal level "1" is output to the signal line 20a, and the CML is turned on.

Step S16 represents a pre-procedure.

At S18, the DI received from the partner device is
It is determined whether or not the X bit of the SIF signal FIF is 1, and if it is 1, that is, if it has a function of physically transmitting a plurality of page information as one partial page, the process proceeds to S28. If it is 0, that is, if it does not have a function of physically transmitting a plurality of page information as one partial page, the process proceeds to S20. The other device is
When a function of physically transmitting a plurality of page information as one partial page is provided, the
DIS is transmitted with the predetermined X bit of "1" set to "1". If the function is not provided, the above X
The DIS is transmitted with the bit set to 0.

At S20, it is determined based on the DIS signal, and it is determined whether the partner device has an ECM communication function.
If it has the ECM communication function, the process proceeds to S25, and if it does not have the ECM communication function, the process proceeds to S21.

In step S21, a DCS signal in which the X bit of the FIF of the DCS signal is set to 0 is transmitted, and designation is made not to physically transmit a plurality of page information as one partial page.

In order to notify the partner apparatus whether or not information of a plurality of pages is physically transmitted as one partial page, the X bit of the DCS FIF is allocated in advance for notification of this function. I have. Setting this X bit to 1 indicates that a plurality of page information is physically transmitted as one partial page, and setting the X bit to 0 indicates that transmission by this function is not performed.

In step S22, one physical page represents normal G3 communication (transmission) as one page.

Step S24 represents a post-procedure.

In step S25, a DCS signal in which the X bit of the FIF of the DCS signal is set to 0 is transmitted, and designation is made not to physically transmit a plurality of page information as one partial page.

Step S26 indicates that a transmission is made as a partial page every time one physical page exceeds 64K bytes, and is transmitted as one partial page when one physical page is 64K bytes or less. Here, ITU-T
Execute ECM communication based on the recommendation.

Step S27 represents a post-procedure.

At S28, the discrimination is made based on the DIS signal,
It is determined whether M communication is possible or not. If ECM communication is possible, the process proceeds to S30, and if ECM communication is not possible, the process proceeds to S21.

At S30, information on the signal line 30a is input, and the reading mode is determined. If the mode is the character reading mode, the process proceeds to S31, and if the mode is the photograph reading mode, the process proceeds to S25.

In step S31, a DCS signal in which the X bit of the FIF of the DCS signal is set to 1 is transmitted, and designation is made to physically transmit a plurality of page information as one partial page.

S32 indicates that a plurality of originals are physically inserted into one partial page and transmitted. Here, the page information of the physical transmission document is set as a frame boundary, and the value of the page counter of the physical transmission document is set in the FCF.

In S34, it is determined whether or not one block is full, and one block is full (ie, 64K).
When the transmission of the encoded data of the byte ends), S
If the block does not become full (that is, the transmission of the encoded data of 64 Kbytes is not completed), the process proceeds to S36.

In S36, it is determined whether or not there is a document to be read. If there is, the process proceeds to S32, and if not, the process proceeds to S42.

Step S38 represents transmission of a PPS-NULL signal.

Step S40 represents an intermediate procedure.

Step S42 represents transmission of the PPS-EOP signal.

Step S44 represents the remaining post-procedure.

(Second Embodiment) In a facsimile apparatus capable of transmitting a plurality of pieces of document information physically for transmission of one partial page, a plurality of pieces of document information are physically transmitted according to the size and resolution of the document information to be transmitted. It may be determined whether or not to transmit one partial page of the document information. For example, only 400 dpi communication and A3 size transmission do not physically transmit a plurality of pieces of document information as one partial page, but at other resolutions and document sizes, physically convert a plurality of pieces of document information into one partial page. To be transmitted.

FIG. 5 shows a specific example of the above control, which is different from the control flow charts of FIGS. 2, 3 and 4.

In FIG. 5, S50 represents Yes in S28.

In S52, it is determined whether or not the transmission size is A3 based on the document size and the information on the recording paper size notified from the receiver.
Otherwise, the process proceeds to S58 (S31).

In S54, it is determined from the information on the signal line 24a and the capability of the receiver, and it is determined whether or not the communication is in the ultrafine mode. If the communication is in the ultrafine mode, the process proceeds to S56 (S25). The process proceeds to step S58 unless the communication is in the ultrafine mode.

(Third Embodiment) In a facsimile apparatus capable of physically transmitting a plurality of pieces of document information for transmission of one partial page, in the case of memory transmission, a plurality of document information are physically transmitted based on the information amount of each page. It is determined whether or not to transmit one partial page of the document information. More specifically, when the ratio of pages in which the physical encoding amount of one page is equal to or more than a predetermined amount (for example, 42 Kbytes) is equal to or more than a predetermined value (for example, 60%), a plurality of physical The original information is not transmitted as one partial page, but in the case of another encoding amount, physically plural pieces of original information are transmitted as one partial page.

The flow charts of the above control are different from the control flow charts of FIGS. 2, 3 and 4 in FIGS. 6 and 7.

In FIG. 6, S60 represents S12.

In S62, it is determined whether or not memory transmission is selected. If memory transmission is selected, the process proceeds to S64, and if memory transmission is not selected, the process proceeds to S63 (S6).

In S64, 1 is set to the page counter k.

Step S66 represents the physical encoding of the kth page of the transmission original and the storage in the memory. Here, the coding amount stored in the memory is also calculated and stored.

In S68, it is determined whether or not reading of one page of the transmission document has been completed. If reading of one page has been completed, the process proceeds to S70. If reading of one page has not been completed, the process proceeds to S66.

In S70, it is determined whether or not there is a next page. If there is a next page, the process proceeds to S72, the value of the page counter is incremented by one, and if there is no next page, the process proceeds to S74.

In S74, it is determined whether or not the information encoded in the physical transmission original is more than 60% of the original having 42K bytes or more. If the answer is affirmative, the multi-transmission flag is set to 0, and the answer is negative. If it is a response, the multi-transmission flag is set to 1.

S80 indicates that a call is made to the designated destination.

At S82, a signal of signal level "1" is output to the signal line 20a to turn on the CML.

S84 represents a pre-procedure.

In S86, it is determined whether or not the X bit of the FIF of the DIS signal is 1, and if it is 1, the process proceeds to S90, and if it is 0, the process proceeds to S88 (S20).

In S90, the discrimination is made based on the DIS signal,
It is determined whether M communication is possible or not.
The process proceeds to S94, and if not possible, proceeds to S92 (S21).

In S94, it is determined whether the multi-transmission flag is 1 or not. If it is 1, the flow proceeds to S96 (S31), and if it is 0, the flow proceeds to S98 (S25).

[0071]

As described above, according to the first aspect of the present invention, in the character mode reading in which there is a high probability that a plurality of pieces of document information are physically contained in one partial page, a plurality of pieces of the physically Is transmitted as one partial page to reduce the communication time, and in halftone mode reading where there is a low probability of physically including a plurality of document information in one partial page, physically reading a plurality of Since the conventional transmission does not transmit the manuscript information as one partial page, the reliability of the communication is improved, which is convenient for the user.

According to the second aspect of the present invention, a plurality of pieces of document information are physically stored in an A3 document size with a low probability of physically containing a plurality of pieces of document information in one partial page. Since the conventional transmission is not performed as a partial page, the reliability of communication is high. Also, if the document size and resolution are other than those described above, there is a probability that a plurality of pieces of document information are physically included in one partial page. Since it is high, the information of a plurality of originals is physically transmitted as one partial page, and the communication time can be reduced, which is convenient for the user.

[0073]

[Brief description of the drawings]

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

FIG. 2 is a flowchart of control by a control circuit 20 of FIG. 1;

FIG. 3 is a flowchart of control by a control circuit 20 of FIG. 1;

FIG. 4 is a flowchart of control by a control circuit 20 of FIG. 1;

FIG. 5 is a control flowchart of a control circuit 20 of FIG. 1;

FIG. 6 is a flowchart of control by a control circuit 20 of FIG. 1;

FIG. 7 is a flowchart of control by a control circuit 20 of FIG. 1;

[Explanation of symbols]

 2 NCU 4 Telephone 6 Hybrid circuit 8 Modulator / demodulator 10 ANSam transmission circuit 12 Addition circuit 14 Reading circuit 16 Recording circuit 18 Memory circuit 20 Control circuit 22 Resolution selection button 24 Resolution display circuit 26 Original size detection circuit 28 Reading mode selection button 30 Reading mode Display circuit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 1/00 H04N 1/21 H04N 1/32 H04N 1/387

Claims (2)

(57) [Claims] In a facsimile communication method capable of physically transmitting a plurality of pieces of document information as one partial page, if reading in a character mode is selected, a plurality of pieces of document information are physically converted to one partial page. A facsimile communication method characterized in that, if reading in the photograph mode is selected, information on a plurality of originals is not physically transmitted as one partial page. 2. A facsimile communication method capable of physically transmitting a plurality of pieces of document information as one partial page. In a facsimile communication method, a plurality of pieces of document information are physically converted into one partial page only in 400 dpi communication and A3 size transmission. A facsimile communication method characterized by physically transmitting a plurality of pieces of document information as one partial page at a different resolution and document size without transmission.