JPH0548779A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To obtain the economical facsimile equipment which automatically detects and outputs an all-white original by substituting it with a specified display when the original is detected at the time of original reception. CONSTITUTION:An all-white line detecting circuit 4 detects whether or not original information, which is received through a communication circuit 10 and decoded by a coding and decoding circuit 6, is all white or not within a specified range and when the all-white state is detected, the original information is substituted with the specified message and outputted from an output circuit 2 or display circuit 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine for transmitting and receiving document information.

[0002]

2. Description of the Related Art Conventionally, in the transmission / reception of a document by a facsimile device, document information read and encoded by a facsimile device on the transmitting side is received by a facsimile device on the receiving side through a communication line, and after decoding, it is recorded and output. It is done by being done. Therefore, when an all-white original (for example, the back side of the original) is read by the sending-side facsimile device due to an original insertion error or the like, an unnecessary all-white original is sent from the sending-side facsimile device and the receiving-side facsimile device sends it. All white manuscript information will be output.

Therefore, in order to prevent the transmission-side facsimile apparatus from transmitting the all-white original information, for example, when the transmission original is read, it is detected whether or not the read original information is all-white. It has been proposed to stop the transmission of the document information when it is detected to be white (for example, see Japanese Patent Laid-Open No. 62-262561).

[0004]

However, in the case of transmitting / receiving the manuscript information using the above facsimile apparatus,
At the time of transmission, it is possible to eliminate the waste of the charge required for communication by detecting and eliminating all white originals from the transmitted originals, but at the time of reception, the original information sent from the sending facsimile machine is faithfully reproduced. Therefore, if an all-white original is received, the all-white original is output. That is,
In the facsimile machine on the receiving side, a situation in which the recording paper is wasted is brought about.

The present invention has been made in view of such a point, and in a receiving side facsimile apparatus, when an all-white original is received, it is automatically detected and replaced with a predetermined message. The present invention aims to provide an excellent facsimile device.

[0006]

SUMMARY OF THE INVENTION The present invention detects a communication means connected to a communication line to receive document information and whether or not the lines forming the document information received by the communication means are all white. It is provided with a detecting means and an output means for outputting, when a predetermined number of all-white lines are continuously detected by the detecting means, document information in which the all-white lines are continuous instead of a predetermined display.

[0007]

In the manuscript information received via the communication means,
The detection means detects whether or not the lines of the original information are all white, and when a predetermined number of all white lines are continuously detected, the output means displays the original information in which all the white lines are continuous in a predetermined display. Output instead.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the facsimile apparatus of the present invention will be described with reference to FIGS.

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

In FIG. 1, F is a facsimile machine, which is connected to a telephone line K.

The facsimile apparatus F prints the reading circuit 1 such as an image sensor for optically reading a document to be transmitted and inputting it as binary document information, and the document information received from the communication partner and stored in the buffer memory 3. An output circuit 2 as an output means of a thermal printer or a laser printer for outputting an image, a data line selector switch 11 for switching a line of document information input from the reading circuit 1 or output to the output circuit 2, and a reading circuit 1 A buffer memory 3 for storing input document information or document information received from a partner device and recorded and output by the recording circuit 2 in units of lines.
And a coding / decoding circuit for coding the manuscript information stored in the buffer memory 3 as coded information or for decoding the manuscript information received from a partner device and stored in a code memory 8 described later to be manuscript information. 6, an all-white line detection circuit 4 as a detection means for detecting the received manuscript information decoded by the encoding / decoding circuit 6 line by line and detecting whether or not it is an all-white line, and encoding / decoding A code memory 8 for storing the encoded information transmitted by the encoding circuit 6 and the encoded information received by the communication circuit 10 which will be described later, and the communication line K are connected to execute the communication control procedure of the facsimile apparatus. A communication circuit 10 as a communication means for transmitting and receiving document information to and from a communication line, an operation circuit 7 in which various operation switches such as a dial switch and transmission start are arranged, connection of the communication line and transmission / reception of documents. A display circuit 9 as output means for displaying various messages relating to, and a central control circuit 5 for controlling the entire are respectively connected to the above components. The central control circuit 5 also includes an all white line detection circuit 4
It is equipped with an all-white line counter that counts the number of all-white lines detected in.

A case will be described in which such an apparatus receives a document by communicating with a facsimile apparatus having the same configuration.

FIG. 2 is a flow chart for explaining the operation of the embodiment of the facsimile apparatus of the present invention.

FIG. 3 is a diagram showing an example of an original sent from a transmitting side facsimile apparatus according to an embodiment of the facsimile apparatus of the present invention.

FIG. 4 is a diagram showing an example of a message displayed on the display circuit 9 according to an embodiment of the facsimile apparatus of the present invention.

FIG. 5 is a diagram showing an example of a message display for replacing an all-white page according to an embodiment of the facsimile apparatus of the present invention.

First, the case where the first page (original in which characters are written) of the original shown in FIG. 3 is received will be described.

In FIG. 1, when the central control circuit 5 detects an incoming call from the transmitting side facsimile by the communication circuit 10 via the communication line K, it connects the data line changeover switch 11 to the output circuit 2 side and to the communication circuit 10. Instruct to start receiving the manuscript information.

Then, the central control circuit 5 controls the communication circuit 10 to connect the communication line with the facsimile apparatus on the transmitting side to check the communication capability, and then starts receiving the manuscript information (step 200). Received manuscript information (encoding information)
Is stored in the code memory 8.

In the currently widely used facsimile machines,
Normally, the original information sent from the sending facsimile machine includes the original 302 prepared by the sender as shown in FIG. 3 and the header portion 3 automatically created by the sending facsimile machine.
01 is added to the top of the manuscript.
The header portion 301 is added regardless of the state of the original 302 (for example, all white pages).

Therefore, in the present embodiment, the original document portion 30
2 so as to be able to distinguish between the header section 301 automatically added by the sending side facsimile apparatus, from the document information initially stored in the code memory 8, the number of lines set in advance corresponding to the size of the header is set. The original document information is read, decrypted, and output to the buffer memory 3 (step 2
01). Further, the reading and decoding of the document information for the number of lines corresponding to the header portion 301 is executed regardless of the presence or absence of the header portion.

When the decoding of the header section 301 is completed, the central control circuit 5 clears the all-white line counter for counting the number of all-white lines in the original section 302 (step 20).
2) Instruct the encoding / decoding circuit 6 to start decoding the original portion 302 (remaining original information) stored in the code memory 8.

In the encoding / decoding circuit 6, which is instructed by the central control circuit 5 to start decoding the original portion 302, the original information stored in the code memory 8 is read and decoded line by line ( At the same time as step 203), the decoded one-line document information is output to the all-white line detection circuit 4.

Then, the central control circuit 5 controls the all-white line detection circuit 4 to determine whether or not the document information for each line output from the encoding / decoding circuit 6 is an all-white line (all white). It is detected (step 204). In the present embodiment, the detection of all white lines by the all white line detection circuit 4 is performed by, for example,
The original information of one line input from the encoding / decoding circuit 6 is divided into specific bits (for example, every 8 bits) and each value is set to 0 (in the case of an all-white line, all bits corresponding to pixels are Since it is 0, even if it is divided for each specific bit, the divided specific bits are all 0).

When the all-white line detection circuit 4 detects all-white lines in the document information, the central control circuit 5 increments the all-white line counter if the detection result is all-white lines (step 205). If the line is not the all-white line, the counting of all-white lines is stopped, the header information is recorded and output (step 210), and then the switching process to the normal document reception is performed.

In the present embodiment, in the first page (first page in FIG. 3) of the received document information, the blank part (all white line) is provided above the document part 302 after the header part 301.
Therefore, several lines from the start of decoding of the original section 302 to the decoding of the line in which the characters are described are detected by the all-white line detection circuit 4 as all-white lines. The central control circuit 5 increments the value of the all-white line counter every time an all-white line is detected (step 205),
Count the number of all white lines.

Then, the central control circuit 5, when the decoding by the encoding / decoding circuit 6 reaches a line in which characters are written,
The all-white line detection circuit 4 detects that the decoded information is not all-white lines (step 204).

The central control circuit 5 determines that the original document information currently decoded is not an all white page by detecting a line which is not an all white line, and outputs the header section 301 stored in the buffer memory 3 at the time of starting decoding. (Step 21
0), confirmation of the number of all white lines counted so far (step 211), and further, the line feed for the number of counted all white lines (step 212) is instructed to the output circuit 2.
Subsequent reception is switched to normal facsimile reception that does not detect all white lines.

In normal facsimile reception, the central control circuit 5 outputs the original information for each line decoded by the encoding / decoding circuit 6 via the buffer memory 3 regardless of whether the original information is all white lines or not. The circuit 2 outputs the signals one after another, and continues until the end of the first page is detected by the encoding / decoding circuit 6 (steps 213, 214,
215).

When the encoding / decoding circuit 6 detects the end of the first page, the central control circuit 5 confirms whether the reception of all pages is completed (step 208), and the reception of all pages is completed. In case of reception, end processing (step 209)
If there is another page, the process returns to step 201 to continue the receiving operation.

Next, a case will be described in which the second page (all white pages) is received subsequent to the first page described above from the transmitting side facsimile apparatus.

When the original information is continuously received, step 201 is performed.
Then, similarly to the reception of the first page, the encoding / decoding circuit 6 performs the decoding for the number of lines corresponding to the header section 301, and the decoded original information is stored in the buffer memory 3
Stored in memory.

When the central control circuit 5 detects the end of decoding of the header section 301, it clears the value of the all-white line counter (step 201), and the original section 3 is sent to the encoding / decoding circuit 6.
03 start decoding.

In the encoding / decoding circuit 6 instructed by the central control circuit 5 to start decoding the original portion, the original information for each line is read from the code memory 8 and after decoding (step 203). The decoded one-line document information is output to the all-white line detection circuit 4.

The central control circuit 5 is an all-white line detection circuit 4
Is controlled to detect whether or not the document information is an all-white line (step 204).

In this embodiment, the manuscript portion 303 of the second page
Is an all-white page, the central control circuit 5 counts the number of all-white lines successively detected by the all-white line detection circuit 4 by the all-white line counter until the end of the current page (step 205, 206, 203, 204).

Since the central control circuit 5 detects the end of the page before detecting a line that is not an all-white line (step 206), it judges that the document information currently being decoded is an all-white page, and The display of the white page non-recording process (eg, 402 in FIG. 4) is instructed to the display circuit 9 (step 207), and the completion of reception of all pages is confirmed (step 208).

When the central control circuit 5 confirms that the reception of all pages has been completed via the communication control circuit 10, if it is confirmed that the reception of all pages has been completed, the reception end processing (step 20).
If it is confirmed in step 9) that there is a next page, the process returns to step 201 to continue the receiving operation.

In the above embodiment, the structure in which all white lines are detected in the document information decoded by the encoding / decoding circuit 6 is not limited to this.
A configuration may be used in which all white lines are detected by counting the codes assigned to white from the coded information before decoding.

Further, in the above embodiment, whether or not all pixels are white in the detection range for each line is detected, but the present invention is not limited to this, and for example, for every plural lines or 1 line. The detection range may be set for each page, or whether or not there is a color change point within the detection range may be detected instead of detecting that all are white.

Further, in the above embodiment, when an all-white page is detected in the received document information, the all-white page is not output from the output circuit 2 and the all-white page non-recording process is displayed on the display circuit 9. However, it is not limited to this. For example,
In a facsimile machine for recording and outputting on a roll paper, the content displayed on the display circuit 9 may be output on the paper from the output circuit 2 when an all-white page is detected, or the all-white page message shown in FIG. (501 in FIG. 5) may be substituted for output on paper. The execution of the all-white page non-output process at the time of receiving the all-white page shown in the above embodiment is
The display (for example, 401 in FIG. 4) on the display circuit 9 and the setting on the operation circuit 9 can be arbitrarily canceled / set.

[0042]

As is apparent from the above description, the present invention performs output stop processing of all white pages and displays it to the operator when reception of all white page originals is detected from the received original information. .. Therefore, even if the sending side mistakenly sets the transmission original and sends an all-white page, the receiving-side facsimile device can delete the output of the all-white page, thereby providing a highly economical facsimile device.

[Brief description of drawings]

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

FIG. 2 is a flow chart diagram for explaining an operation according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of an original sent from a sending facsimile apparatus according to an embodiment of the present invention.

FIG. 4 is a diagram showing a display example on a display circuit according to an embodiment of the present invention.

FIG. 5 is a diagram showing an example of a message to be replaced with an all white page according to an embodiment of the present invention.

[Explanation of symbols]

 1 Reading Circuit 2 Output Circuit 3 Buffer Memory 4 All White Line Detection Circuit 5 Central Control Circuit 6 Encoding / Decoding Circuit 7 Operation Circuit 8 Code Memory 9 Display Circuit 10 Communication Circuit 11 Data Line Change Switch

Claims (1)

[Claims] 1. A communication means connected to a communication line for receiving document information, a detecting means for detecting whether or not a line forming the document information received by the communication means is completely white, and the detecting means. A facsimile apparatus, comprising: an output unit which, when a predetermined number of all-white lines are continuously detected, outputs document information in which the all-white lines are continuously changed to a predetermined display.