JPH0681238B2 - Facsimile transmitter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile (hereinafter referred to as “FAX”) transmitting apparatus, and more particularly to a FAX transmitting apparatus capable of transmitting a predetermined portion of a document in multiple gradations. Is.

In recent years, FAX communication for transmitting documents, figures, etc. to a remote place using a communication line has become widespread. In FAX communication, a transmission / reception device between users is usually connected through a communication line such as a subscriber telephone line through an exchange to perform document communication with each other, and the read image data of the original on the transmitting side is transmitted as an electric signal. The document is reproduced by recording on the recording paper at the receiving side.

The FAX communication device normally transmits in two gradations. However, when a document contains a photograph or the like, a device that transmits only that part in multi gradation is desired.

[Conventional technology]

Hereinafter, a FAX communication device will be described as an example with reference to FIGS. 4 and 5A and 5B. FIG. 4 is a block diagram showing a conventional method, and FIGS. 5 (a) and 5 (b) are explanatory views of FIG.

In FIG. 4, the reading unit 2 conveys the original 1 fed out from the original table 21 by the feed roller R1, and the reflected light emitted from the original 1 by the light emitting lamp 22 is scanned by the image sensor 24 through the lens 23 to form an image. It has a function of reading as data and a function of reading the OMR card 4 by a signal that the sensor S detects that it is the OMR card 4.

The main control unit 3 controls the sequence of transmission and reception,
It has a function to establish the procedure before transmission and reception with the partner station, and when the communication button 6a of the operation display unit 6 is operated, the sensor S
A function of sending R to the OMR data memory 6 the signal read from the OMR card 4 by the reading unit 2 when R is detected, and the image data of the range when the signal identifying the portion a not sent is sent from the identification control unit 8. Has the function of sending as blank.
It also has a function of expanding the received image data and sending it to the recording unit 9.

The OMR card 4 is provided with a partial transmission designation field A in which the transmission prohibited portion a is entered.

The binary conversion unit 5 has a function of binarizing the read data read by the reading unit 2.

The operation display unit 6 includes a communication button 6a, a keyboard having an operation button (not shown) for inputting a destination code, transmission time, and the like, and a display for displaying data input from the keyboard and necessary messages. It is composed of.

The OMR data memory 7 is a storage unit that stores the signal of the transmission prohibited portion a read from the OMR card 4.

The identification control unit 8 identifies the read data of the corresponding document 1 based on the signal stored in the OMR data memory 7 when the transmission is instructed, and outputs a signal for prohibiting the transmission of the read data in the mark range to the main control unit. 3 has the function of sending.

The recording unit 9 has a function of printing on recording paper according to a received signal to form a recorded document 1a.

The transmission control unit 10 controls transmission / reception with a partner station.

The modem 11 has a function of modulating / demodulating transmitted / received data and the like.

Network control unit (NCU) 12
Has a function of controlling connection and disconnection of the circuit switching network.

With such a configuration and functions, the original 1 is placed on the original table.
When the transmission destination code is input and the communication button 4a is operated after being set in 21, the transmission destination is connected, and the image data read by the image sensor 24 of the original 1 is read by the image sensor 24 by the binary conversion unit 5. After being converted into a binary value and compressed by the main control unit 3, it is modulated by the modem 11 under the control of the transmission control unit 10 and sent to the line for the receiving station via the NCU 12.

In the case of reception, the received image data is decompressed by the main control unit 3 and sent to the recording unit 9 for recording.

Although normal transmission / reception is performed in this way, if it is desired to transmit only the necessary portion of the original 1, the portion a not transmitted to the mark field A of the OMR card 4 as shown in FIG.
When the OMR card 4 is set and the communication button 6a is pressed before the corresponding original 1 is read, the OMR card 4 is sent out and the sensor S detects that it is OMR. The signal read by the reading unit 2 is stored in the OMR data memory 7, and the identification control unit 8 is activated. Next, when the original 1 is read, the OMR data memory 7
The signal stored in is read out and the identification control unit 8 identifies the untransmittable range, and the image data is not transmitted during that period.

Therefore, on the receiving side, as shown in FIG. 5 (b), the portion a that is not transmitted becomes blank in the recorded document 1a, and only the necessary portion is recorded.

[Problems to be solved by the invention]

According to the above-mentioned conventional method, the image data read from the manuscript 1 is binary-converted and transmitted, but when the characters and the photo coexist on the manuscript 1, the binary image has a strong contrast in the photograph part. It is too clear to be reproduced clearly. Therefore, there is a problem in that small characters become invisible when transmitted in multiple gradations so that the picture appears sharp.

[Means for solving problems]

According to the present invention, the above problem is caused by reading an original and an OMR card in which the transmission prohibition instruction mark and the multi-tone transmission instruction mark are written in the corresponding positions of the original transmission inhibition portion and the multi-tone transmission portion of the original. And a reading unit with a sensor that outputs a signal that detects the OMR card to the main control unit, and a binary conversion unit that binarizes the read data from the reading unit and outputs the binarized data to the main control unit. A multi-gradation conversion unit for converting the read data from the reading unit into multiple gradations and outputting it to the main control unit, and a connection path for outputting the read data from the reading unit to the main control unit, usually via a binary conversion unit. In the case of multi-gradation, when the main control unit detects the detection signal from the switching unit that switches to the connection path via the multi-gradation conversion unit and the sensor added to the reading unit, the reading unit reads the OMR card An OMR data memory that stores the OMR data via the main controller, Upon reading the document by the isolation portion,
It identifies the contents of OMR data from the OMR data memory via the main control unit, controls the switching unit in the case of multi-gradation transmission instruction, and connects the reading unit and the main control unit via the multi-gradation conversion unit. When the transmission prohibition instruction is identified, the main control unit includes an identification control unit that inhibits the transmission of the transmission prohibition portion, which is solved by the facsimile transmission apparatus.

[Action]

According to the present invention, in the facsimile transmission apparatus, an OMR card having the same size as the original and having a mark on the corresponding portion is used for the main control unit to distinguish the multi-gradation transmission portion and the transmission prohibited portion on the original. Therefore, it becomes easy to handle different types of originals.

Further, since the original and the OMR card are distinguished on the reading unit by the presence or absence of the detection signal from the sensor added to the reading unit, the reading unit can be shared by the original and the OMR card with a simple configuration. Therefore, after the OMR card is read, the OMR card and the original can be placed together in the reading unit so that the original corresponding to can be read, and the transmission operation becomes easy. Also, since the read data from the OMR card is stored in the OMR data memory under the control of the main control unit based on the detection signal from the sensor, the read data from the original in the facsimile transmitter and the read from the OMR card. It becomes easy to control different connection paths for data.

Furthermore, when reading a document by the reading unit,
The OMR data is read from the OMR data memory, and the multi-gradation transmission part and the transmission prohibition part are discriminated by the identification control part. Since the data is output to the main control unit via the gradation conversion unit, clear transmission control of a photograph or the like in a document becomes easy.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1, 2, 3 (a) and (b). FIG. 1 is a block diagram showing an embodiment according to the present invention, FIG. 2 is a flow chart of FIG. 1, and FIGS. 3 (a) and 3 (b) are explanatory views of FIG. The same reference numerals denote the same objects throughout the drawings.

In FIG. 1, the main control unit 3a controls transmission / reception sequence and has a function of establishing a pre-transmission / reception procedure with a partner station and a compression / decompression function of transmission / reception data. The OMR data memory is operated when the sensor S detects the OMR and the reading unit 2 sends a mark indicating the transmission prohibited portion a written on the OMR card 4a and a signal reading the multi-gradation transmission mark by operation. OMR data memory 7a when the function of feeding to 7a and reading of original 1 is started
The OMR data stored in the identification control unit 7a
It has a function to send to.

The OMR card 4a is provided with a partial transmission designation field A for writing the transmission prohibited portion a and a multi-gradation transmission designation field B for designating the multi-gradation transmission portion b.

The OMR data memory 7a is a storage unit that stores the signal of the transmission prohibited portion a and the signal of the multi-gradation transmission portion b read from the OMR card 4a.

The identification control unit 8a identifies the OMR data of the OMR data memory 7a sent from the main control unit 3a, and when the multi-gradation portion b is designated, controls the switching unit 13 to route the read data to the multi-gradation. A signal for prohibiting the transmission of the read data is sent to the main control unit when the transmission prohibition portion a is designated while switching to the conversion unit 14 side.
It has a function to send to 3a.

The switching unit 13 has a function that the route of the image data read by the reading unit 2 is normally set to the binary conversion unit 5 side, and switches to the multi-gradation conversion unit 14 based on a command from the identification control unit 8a. Have.

The multi-gradation conversion unit 14 has a function of converting the image data sent from the switching unit 13 into multi-gradation and sending it to the main control unit 3a.

With such a configuration and function, the case of instructing and transmitting partial multi-gradation and partial transmission prohibition will be described with reference to the flowchart of FIG. 2. First, as shown in FIG. 3 (a), the OMR card 4a In the partial transmission designation column A, a mark is written in the range of the non-transmitting portion a, and in the multi-tone transmission designation column B, a mark is written in the range of the multi-tone portion b.

When the OMR card 4a is set and the communication button 6a is pressed, the OMR card 4a is sent out and the sensor S determines that it is OMR, and the reading unit 2 reads the mark of the portion a not transmitted and the mark of the multi-gradation portion b. , OMR data memory 7a.

Next, when the original 1 is read, the read data is binarized by the binary converter 5, compressed by the main controller 3a, and transmitted.

Eventually, the signal stored in the OMR data memory 7a is read out, and the identification control unit 8a identifies the untransmittable range and the multi-gradation transmission.

By the identification, a signal for prohibiting the transmission of image data is sent to the main control unit 3a while the untransmittable range is designated, and the main control unit 3a does not transmit the image data based on this signal.

Further, while the multi-gradation transmission is designated, the switching unit 13 is switched to the multi-gradation conversion unit 14 side to convert the image data into the multi-gradation, and the main control unit 3a compresses and transmits.

Therefore, on the receiving side, as shown in FIG.
Only the necessary portion for recording is recorded, and the multi-gradation portion b of the photograph is clearly reproduced.

In this way, it is possible to easily fill in the mark of the multi-tone part b on the OMR card 4a, and the character part is converted into binary data and transmitted, and the part such as a photograph that requires halftone is multi-tone. Since the data can be converted and transmitted, it is possible to clearly record any one without any operation on the receiving side.

〔The invention's effect〕

Since the multi-tone transmission designation and transmission prohibition designation in the original are controlled by the mark of the OMR card of the same size as the original, it is easy to support various originals and the sensor that can detect the use of the OMR card. The reading unit can be shared for reading the original and the OMR card by simply adding the to the reading unit. OMR data from the OMR card is stored in the OMR data memory, and multi-gradation transmission and inhibition of transmission of original read data are controlled by OMR data from the OMR data memory. It becomes easy to control clear transmission and prohibition of transmission.

[Brief description of drawings]

 FIG. 1 is a block diagram showing an embodiment according to the present invention, FIG. 2 is a flow chart of FIG. 1, FIGS. 3 (a) and 3 (b) are explanatory views of FIG. 1, and FIG. 4 shows a conventional method. Block diagrams, FIGS. 5 (a) and 5 (b) are explanatory views of FIG. In the figure, 1 is a manuscript, 1a is a recorded document, 2 is a reading unit, 3,3a is a main control unit, 4,4a is an OMR card, 5 is a binary conversion unit, 6 is an operation display unit, 6a is a communication button, 7, 7a is an OMR data memory, 8, 8a is an identification control unit, 9 is a recording unit, 10 is a transmission control unit, 11 is a modem, 12 is an NCU, 13 is a switching unit, 14 is a multi-gradation transmission conversion unit, A Indicates a partial transmission designation column, B indicates a multi-tone transmission designation column, and S indicates a sensor.

Claims (1)

[Claims] 1. A manuscript and an OMR card having the same size as the manuscript and having a transmission prohibition instruction mark and a multi-gradation transmission instruction mark at corresponding positions of the transmission prohibition portion and the multi-gradation transmission portion of the original document can be read. A reading unit with a sensor that outputs a signal that detects the OMR card to the main control unit, a binary conversion unit that binarizes read data from the reading unit and outputs the binarized data to the main control unit, and a reading unit The multi-gradation conversion section that multi-levels the read data of and outputs it to the main control section, and the connection path that outputs the read data from the reading section to the main control section, usually via a binary conversion section, In the case of modulation, when the main control unit detects the detection signal from the switching unit that switches to the connection path via the multi-gradation conversion unit and the sensor added to the reading unit, the OMR data from the OMR card read by the reading unit is output. The OMR data memory that stores data via the main control unit and the reading unit When reading a document, the contents of the OMR data from the OMR data memory via the main control unit are identified, and in the case of multi-tone transmission instruction, the switching unit is controlled, and the multi-gradation between the reading unit and the main control unit is performed. A facsimile transmission apparatus, comprising: an identification control unit for prohibiting transmission of a transmission prohibited portion by a main control unit when switching to a connection path via a conversion unit and identifying a transmission prohibition instruction.