JPH06274490A - Communication terminal equipment - Google Patents

Abstract

PURPOSE:To reduce a capacity necessary for a page buffer means, and to reduce a device cost by preserving picture data for a part except the null part of a page in the page buffer means. CONSTITUTION:At the time of transferring the picture data for the part of an upper margin UM to an encoding/decoding part, the data of an entire null line buffer prepared separately from a line buffer are repeatedly transferred to the encoding/decoding part by the number of lines equivalent to an upper margin amounts. In the same way, at the time of transferring the picture data on the part of a to lower margin BM to the encoding/decoding part, the data of the entire null line buffer are repeatedly transferred to the encoding/decoding part by the number of lines equivalent to the lower margin amounts. Also, at the time of transferring the picture data of the part of line intervals included in a text CT to the encoding/decoding part, the data of the entire null line buffer are repeatedly transferred to the encoding/decoding part by the number of lines equivalent to the bottom margin amounts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device for transmitting an image of document data stored on a floppy disk.

[0002]

2. Description of the Related Art In recent years, a communication terminal device for reading and inputting document file data stored in a floppy disk, developing a display image of the document file data in a page memory, and transmitting the display image to a facsimile device is known. It is in practical use.

[0003]

However, such a conventional device has the following disadvantages.

That is, since the display image for one page is expanded in the page memory, the capacity required for the page memory becomes very large, which causes a problem that the apparatus cost becomes high.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a communication terminal device capable of transmitting a document stored in a floppy disk as image information and reducing the cost.

[0006]

According to the present invention, a floppy disk reading means for reading and inputting recorded information of a floppy disk, and data of a document file stored in a floppy disk by the floppy disk reading means are inputted, Data conversion means for forming display image data of document file data page by page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding and compression of the display image data for transmission. Encoding means for forming image information, data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and transmission image information formed by the encoding means for transmission to a partner terminal The document file consists of multiple pages, each page containing And body data formed by arranging a plurality of graphic character codes constituting the display contents of the body of the page,
Top margin data representing the amount of margin provided from the top of the display information carrier to the start position of the text is included, and the data conversion means forms the display image data excluding the margin portion corresponding to the top margin data. Then, while storing in the page buffer means, the data transfer means forms all white data of the number of lines corresponding to the upper end margin data and transfers it to the encoding means,
The display image data stored in the page buffer means is transferred to the encoding means.

Further, the floppy disk reading means for reading and inputting the recorded information of the floppy disk and the data of the document file stored in the floppy disk by the floppy disk reading means are inputted and the display image data of the document file data is inputted. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. And a data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, and the document The file consists of multiple pages, each page displaying the text of that page. And body data formed by arranging a plurality of graphic character codes constituting containers, bottom margin data representing the amount of space provided to the lower end of the display information carrier from the end position of the body is included, the data conversion means,
The display image data excluding the margin portion corresponding to the lower end margin data is formed and stored in the page buffer means, and the data transfer means stores the display image data stored in the page buffer means with the code. After being transferred to the encoding means, all white data of the number of lines corresponding to the lower end margin data is formed and transferred to the encoding means.

Further, the floppy disk reading means for reading and inputting the recorded information of the floppy disk and the data of the document file stored in the floppy disk by the floppy disk reading means are inputted, and the display image data of the document file data is inputted. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. And a data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, and the document The file consists of multiple pages, each page displaying the text of that page. Content data that is an array of multiple graphic character codes that make up the content, top margin data that represents the amount of top margin that is provided from the top of the display information carrier to the start position of the text, and display from the end position of the text. The lower end margin data representing the amount of the lower end margin provided up to the lower end of the information carrier is included.
Top margin corresponding to the above margin data, and
The display image data excluding the bottom margin portion corresponding to the bottom margin data is formed and stored in the page buffer means, and the data transfer means stores all white data of the number of lines corresponding to the top margin data. After being formed and transferred to the encoding means, the display image data stored in the page buffer means is transferred to the encoding means, and then all white data of the number of lines corresponding to the lower end margin data is formed. Then, the data is transferred to the encoding means.

Further, the floppy disk reading means for reading and inputting the recorded information of the floppy disk and the data of the document file stored in the floppy disk by the floppy disk reading means are inputted, and the display image data of the document file data is inputted. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. And a data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, and the document The file consists of multiple pages, each page displaying the text of that page. Includes text data that is an array of multiple graphic character codes that make up the content, and left-edge margin data that represents the amount of blank space that is provided from the left edge of the display information carrier to the left edge of the display area occupied by the text. The means forms display image data excluding a margin portion corresponding to the left end margin data and stores the display image data in the page buffer means, and the data transfer means,
When one line of the display image data stored in the page buffer means is transferred, white image data of a margin corresponding to the left edge margin data is formed and transferred to the encoding means, and then the page buffer means. The display image data stored in is transferred to the encoding means.

Further, the floppy disk reading means for reading and inputting the recorded information of the floppy disk and the data of the document file stored in the floppy disk by the floppy disk reading means are inputted, and the display image data of the document file data is inputted. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. And a data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, and the document The file consists of multiple pages, each page displaying the text of that page. The data conversion includes the text data that is an array of a plurality of graphic character codes that make up the content and the right margin data that represents the amount of space to be provided between the right edge of the display area occupied by the text and the right edge of the display information carrier. The means forms display image data excluding a margin portion corresponding to the right end margin data and stores the display image data in the page buffer means, and the data transfer means,
When the display image data stored in the page buffer means is transferred by one line, the display image data stored in the page buffer means is transferred to the encoding means and then the right edge margin data is dealt with. The blank white image data is formed and transferred to the encoding means.

Further, the floppy disk reading means for reading and inputting the recorded information of the floppy disk and the data of the document file stored in the floppy disk by the floppy disk reading means are inputted and the display image data of the document file data is inputted. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. And a data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, and the document The file consists of multiple pages, each page displaying the text of that page. Content data that is an array of multiple graphic character codes that make up the content, the left edge margin data that represents the amount of blank space provided from the left edge of the display information carrier to the left edge of the display area occupied by the text, and the display occupied by the text. The right end margin data that represents the amount of the margin provided from the right end of the area to the right end of the display information carrier is included, and the data conversion means removes the margin part corresponding to the left end margin data and the right end margin data. The data is formed and stored in the page buffer means, and the data transfer means, when transferring the display image data stored in the page buffer means by one line, creates a margin corresponding to the left end margin data. White image data is formed, transferred to the encoding means, and stored in the page buffer means. The display image data transferred to said encoding means, in which so as to transfer to said encoding means to form a white image data of the margin which corresponds to the right end margin data.

Further, the floppy disk reading means for reading and inputting the recorded information of the floppy disk and the data of the document file stored in the floppy disk by the floppy disk reading means are inputted, and the display image data of the document file data is inputted. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. And a data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, and the document The file consists of multiple pages, each page displaying the text of that page. The data conversion means includes line spacing data corresponding to the line spacing data. The display image data excluding the part is formed and stored in the page buffer means, and the data transfer means,
For each character line, the display image data for one character line stored in the page buffer means is transferred to the encoding means, and then all white data of the number of lines corresponding to the line interval data is formed. The transfer to the encoding means is repeatedly executed.

[0013]

Therefore, since the page buffer means stores the image data of the portion excluding the blank portion of the page, the capacity required for the page buffer means can be reduced and the apparatus cost can be reduced. .

[0014]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 shows a group 3 facsimile apparatus according to an embodiment of the present invention. This Group 3 facsimile apparatus uses a public telephone network as a transmission line and has a function of accessing data on a floppy disk.

In FIG. 1, a system control unit 1 controls the respective units of the facsimile apparatus, file processing (file system function) such as reading (handling) of data stored in a floppy disk, and facsimile transmission control. The system memory 2 stores the control processing program executed by the system control unit 1 and various data necessary for executing the processing program, and also the work area of the system control unit 1. The parameter memory 3 is for storing various information peculiar to the group 3 facsimile apparatus, and the font data memory 4 stores font data necessary for displaying graphic characters. It is for saving.

The scanner 5 is for reading an original image at a predetermined resolution, the plotter 6 is for recording and outputting an image at a predetermined resolution, and the operation display unit 7 is a facsimile device. For operation,
It consists of various operation keys and various indicators.

The encoding / decoding unit 8 is for encoding and compressing the image signal and for decoding the encoded and compressed image information into the original image signal. The floppy disk device 9 is a floppy disk device. The fixed disk device 11 is for reading and storing the data stored in the floppy disk 10 while the disk 10 is being attached and detached.
It is a large-capacity external storage device for storing a large number of various information such as image information in a coded and compressed state.

The group 3 facsimile modem 12 is for realizing the modem function of the group 3 facsimile, and has a low speed modem function (V.21 modem) for exchanging a transmission procedure signal and mainly exchanging image information. High-speed modem (V.33 modem, V.2
9 modem, V. 27ter modem, etc.) function.

The network control device 13 is for connecting the facsimile device to a public telephone line network, and has an automatic call originating / receiving function.

These system control unit 1, system memory 2, parameter memory 3, font data memory 4, scanner 5, plotter 6, operation display unit 7, encoding / decoding unit 8, floppy disk device 9, fixed disk device. 11, group 3 facsimile modem 12, and
The network control device 13 is connected to the system bus 14, and data is exchanged between these respective elements mainly via the system bus 14.

Data exchange between the network control device 13 and the group 3 facsimile modem 12 is performed directly.

In this group 3 facsimile apparatus, the floppy disk apparatus 9 reads the document file data stored in the floppy disk 10,
The read document file data is converted into facsimile image data, and the converted facsimile image data is temporarily stored in the page buffer formed in the system memory 2.

Then, the facsimile image data stored in the page buffer is taken out line by line in the main scanning direction, sequentially stored in a plurality of line buffers formed in the system memory 2, and stored in the plurality of line buffers. The facsimile image data is transferred line by line to the encoding / decoding unit 8 and is encoded and compressed to form image information.

In this way, the floppy disk 10
The document file data stored in is converted into image information and stored in the fixed disk device 11 or transmitted to the partner terminal device. Also, floppy disk 1
When the content of the document file stored in 0 is recorded and output from the plotter 6 (hard copy), the facsimile image data stored in the page buffer is transferred to the plotter 6 via the line buffer.

The line buffer used at this time has, for example, as shown in FIG. 2A, a capacity capable of storing facsimile image data of pixels for one line. The number of lines corresponding to the conversion processing unit is provided. Further, in this embodiment, the processing amount when forming the facsimile image data, and
In order to reduce the processing amount when transferring the facsimile image data to the encoding / decoding unit 8, the all-white line buffer that holds data corresponding to all-white lines, as shown in FIG. It is provided in the system memory 2.

Further, the font data stored in the font data memory 4 is, as shown in FIG.
One graphic character is represented by a pattern of a rectangular area of horizontal dx dots and vertical dy dots. Here, both dx and dy are 16.

The document file data stored in the floppy disk 10 includes one or more pages, and each page has a layout structure as shown in FIG. 3A, for example.

The page PG has, for example, a rectangular shape corresponding to a sheet of A4 size or the like, and a text CT forming the content part of the page PG is arranged at the center thereof. In addition, around the text CT, a blank area of an arbitrary size is formed in order to ensure readability when reading the content of the text CT.

The blank area has an upper margin UM representing the dimension of the blank area from the upper edge of the page PG to the upper edge of the body CT, and a left end margin LM representing the dimension of the blank area from the left edge of the page PG to the left edge of the body CT. Body CT
Of the blank area from the bottom edge of the page PG to the bottom edge of the page PG, and the right edge margin RM of the blank area from the right edge of the body CT to the right edge of the page PG.

In the layout structure of the body CT, character lines formed by arranging graphic characters in the horizontal direction are arranged for each line feed amount LS, and one body CT has a maximum of nm lines.
Can be arranged in rows. Here, the line spacing dL, which represents the space between each character line, is a value obtained by subtracting the height dimension LH from the line feed amount LS.

The layout structure of character lines is shown in FIG.
As shown in (b), a rectangular area CB in which one graphic character is arranged is arranged for each character feed amount CS, and a maximum of nc graphic characters can be arranged in one character line. it can. Here, the character spacing d representing the spacing between the graphic characters
C is a value obtained by subtracting the lateral dimension CH of the rectangular area CB from the character feed amount CS.

Further, the management information as shown in FIG. 4 is formed in each document file data and stored in a predetermined management area of the floppy disk 10.

This management information includes document name information for identifying each document file data, headline information used for searching the document file data, paper size information indicating the page size of the document file, and one character. Character number information that represents the maximum number of graphic characters included in a column, line number information that represents the maximum value of the number of character lines included in one body CT, character feed amount information that represents the value of character feed amount CS, and line Line feed amount information representing the value of the feed amount LS, upper margin amount information representing the value of the upper margin UM, lower margin amount information representing the value of the lower margin BM, left edge margin amount information representing the value of the left edge margin LM, right edge margin. The right end margin amount information showing the value of RM and the content part of the body CT of each page are stored in the floppy disk 10. Consisting of page pointer (# 1~PP) representing the that the storage position.

Here, the content part of the body CT of each page is
It is composed of a character code string in which character codes corresponding to respective graphic characters arranged in each character line are arranged in the order of appearance.

For example, when using A4 size paper,
The value of the number-of-characters information (= nc) is 38 (characters), the value of the number-of-rows information (= nm) is 54 (rows), and the value of the character feed amount information is 4.4 (mm). The value of the feed amount information is 4.9.
(Mm) is 20 (mm) in the value of the top margin information
However, the value of the lower end margin amount information is set to 10 (mm), the value of the left end margin amount information is set to 20 (mm), and the value of the right end margin amount information is set to 20 (mm).

At this time, the resolution of the image data is 8 (dots / m) which is the standard resolution of the group 3 facsimile apparatus.
If m) × 3.85 (lines / mm), the number of dots corresponding to the character feed amount becomes 36, so the horizontal dimension CH of the rectangular area CB occupied by one graphic character is set to the horizontal dot number of the font data. The character spacing dC can be set to 4 dots while the 16 is doubled to 32 dots.

The number of lines corresponding to the line feed amount is 19
Since it becomes a line, 16 is used as the height dimension of the character line, which is the number of dots in the height direction of the font data.
The line spacing dL can be set to 3 lines.

In this embodiment, when the facsimile image data is formed from the above-mentioned content portion and transferred to the encoding / decoding portion 8 for encoding and compression, the following processing is executed.

First, as shown in FIG. 5A, the main body CT
Form image data that consists only of the character lines of the content part of
Save to page buffer. In the figure, Δx represents the number of bits in the x direction (= 36) corresponding to the character feed amount, Δy represents the number of bits in the y direction (= 16) corresponding to the height dimension LH of the character line, and Δl represents the number of bits (= 4) corresponding to the character interval.

An example of processing for saving one page of image data in the page buffer is shown in FIGS. 6 and 7.

First, a counter i for storing the position in the digit direction of a graphic character to be converted into image data, and a position in the row direction for the character line of a graphic character to be converted into image data. Of the counter j and the value of the counter k for storing the line position to be converted in one graphic character are cleared to 0, and the line end flag for storing the line end position is reset (process 101), The number of characters of each character line on the page is extracted to form a character number table showing the relationship between the character line number and the number of characters (process 102). A well-known appropriate method can be used to extract the number of characters in each character line.

Then, the number of characters in the j-th line is fetched from the character number table and set in the variable LNa (Processing 10).
3). Next, the character code data of the i-th digit of the j-th line is input (process 104), and it is checked whether the character code data is a "line feed" code or a "line feed" code (decisions 105 and 106). ). The character code data is
It is the "line feed" code or the "line feed" code, and the judgment 105
Alternatively, when the result of determination 106 is YES, the line end flag is set (process 107), and the font data corresponding to the "blank" code representing all white characters is taken out from the font data memory 4 (process 108). If the character code data is neither a "line feed" code nor a "line feed" code, and the result of the determination 106 is NO,
The font data corresponding to the character code data is retrieved from the font data memory 4 (process 109).

When the font data is extracted in this manner, 16-bit data of the k-th line, that is, 2-byte data is obtained (process 110). Next, the 2-byte data is doubled bit by bit to form 4-byte data, and further 4-byte all-white data of "0000" is added to the 4.5-byte transfer data (see FIG. 5).
(See (b)) is formed (process 111). This transfer data corresponds to the data of one line of the graphic character in the portion corresponding to Δx on the page buffer.

Next, the address (transfer address) of the page buffer that stores the transfer data is calculated (process 11).
2) Save the formed transfer data in the page buffer of the transfer address (data transfer; processing 113). Next, the value of the counter k is incremented by 1 (process 114), and it is checked whether the value of the counter k matches 16 (decision 1).
15). When the result of the determination 115 is NO, the process 11 is executed to save the image data of the line next to the font data currently fetched in the page buffer.
Return to 0.

When the result of the judgment 115 is YES, all the image data of one font data has been stored in the page buffer, so it is checked whether the line end flag is set at that time (decision 116).

When the result of the judgment 116 is YES, the value of the counter i is incremented by 1 (process 117) and it is checked whether or not the value of the counter i is equal to or more than the value of the variable LNa (decision 118). When the result of determination 118 is NO, the process returns to step 108 in order to fill the remaining portion of the character line with image data of “blank” characters.

When the result of determination 118 is YES, the image data of one character line has been stored in the page buffer, so the value of the counter i is cleared to 0 (Processing 11
9), the value of the counter j is incremented by 1 (process 120), and it is checked whether the value of the counter j is nm or more (decision 121). When the result of determination 121 is YES, image data for one page has been stored in the page buffer, so this processing ends. When the result of determination 121 is NO, after the line end flag is reset to save the image data of the remaining character lines (Processing 12
2) Return to process 103.

When the result of the judgment 116 is NO, the value of the counter i is incremented by 1 (process 123) and it is checked whether the value of the counter i is the value of the variable LNa or more (decision 124). . When the result of the determination 124 is NO, the process returns to the process 104 to save the image data of the next character of the same character line in the page buffer. Also,
When the result of determination 124 is YES, the process proceeds to process 119.

In this way, image data is generated for each character of one character line and stored in the page buffer. Also,
When a "line feed" code appears in the middle of a line, the space after that line (including the "line feed" code position) is "blank".
I am trying to fill in with. When the "line feed" code appears, the character line is filled with "blank".

FIG. 8 shows an example of processing when image data is transferred to the encoding / decoding unit 8.

First, based on the value of the upper margin amount information of the management information of the document file at that time, the upper margin line number representing the number of lines corresponding to the upper margin amount is calculated (process 201), and the lower margin amount information. Calculates the number of lines at the bottom margin line that represents the number of lines corresponding to the bottom margin amount (step 202), and based on the value of the left margin amount information, the number of pixels (the number of bits) corresponding to the left margin amount. Is calculated (process 203), the number of pixels at the right end margin representing the number of pixels corresponding to the right end margin amount is calculated based on the value of the right end margin amount information (process 204), and is equivalent to the line spacing. The number of line spacing lines representing the number of lines to be processed is calculated (process 205).

Next, the upper margin coding process (process 206) for coding the image data of the upper margin part is executed. Then, a one-character line encoding process (process 207) for encoding the image data of one character line is executed, and the line interval encoding for encoding the image data of the line interval between the next character line and The process (process 208) is executed.

Here, it is checked whether or not the next character line remains (decision 209). If the result of the judgment 209 is YES, the process returns to step 207 to execute the encoding process of the next character line. When the result of the determination 209 is NO, the lower end margin encoding process (process 210) for encoding the image data of the lower end margin portion is executed, and the encoding process of the image data for one page ends.

FIG. 9 shows an example of the upper margin coding process.

First, the value of the upper margin line number is set in the counter Ln (process 301). Then, it is checked whether the value of the counter Ln is equal to 0 (decision 30).
2). When the result of the determination 302 is NO, the value of the counter Ln is decremented by 1 (process 303) and then the data of the all-white line buffer is transferred to the encoding / decoding unit 8 (all-white line encoding process (process 304)). ) And make a decision 30
Return to 2. If the result of decision 302 is YES,
Since the encoding of the upper margin portion has been completed, this processing ends.

FIG. 10 shows an example of the one-character line encoding process.

First, the value of Δy is set in the counter Ln (process 401). Then, as shown in FIG. 5C, the image data for one line of the character line to be encoded at that time is calculated from the width YY of the line buffer to the bit number dLM and the right edge margin corresponding to the left edge margin pixel number. The central part d excluding the bit number dRM corresponding to the number of pixels
Transfer to ML (process 402).

Next, after decrementing the value of the counter Ln by 1 (process 403), it is checked whether or not the value of the counter Ln is equal to 0 (decision 404). If the result of the judgment 404 is NO, the process 402. Then, the image data of the remaining lines are transferred back to.

When the result of the determination 404 is YES, the image data of Ln lines stored in the line buffer at that time is transferred to the encoding / decoding unit 8 and is encoded (process 405).

FIG. 11 shows an example of the line interval coding process.

First, the value of the line interval line number is set in the counter Ln (process 501). Next, the counter Ln
It is checked whether the value of is equal to 0 (decision 502). When the result of determination 502 is NO, the value of the counter Ln is decremented by 1 (process 503), and then the data of the all-white line buffer is transferred to the encoding / decoding unit 8 (all-white line encoding process (process 504)). ) Is executed and the process returns to the determination 502. When the result of the determination 502 is YES, the coding of the line interval portion has been completed, and this processing is ended.

FIG. 12 shows an example of the bottom margin coding process.

First, the value of the number of bottom margin lines is set in the counter Ln (process 601). Then, it is checked whether the value of the counter Ln is equal to 0 (decision 60).
2). When the result of determination 602 is NO, the value of the counter Ln is decremented by 1 (process 603), and then the data of the all-white line buffer is transferred to the encoding / decoding unit 8 (all-white line encoding process (process 604)). ) To make a decision 60
Return to 2. When the result of determination 602 is YES,
Since the encoding of the lower end portion has been completed, this processing ends.

As described above, in the present embodiment, when the image data of the upper margin is transferred to the encoding / decoding unit 8, the data of the all-white line buffer formed separately from the line buffer is changed to the upper margin. The number of lines corresponding to the amount is repeated and transferred to the encoding / decoding unit 8. Similarly, when transferring the image data of the lower end margin portion to the encoding / decoding unit 8, the data of the all-white line buffer is repeated to the encoding / decoding unit 8 by repeating the number of lines corresponding to the lower end margin amount. To do.

At the same time, when the image data of the line spacing included in the body CT is transferred to the encoding / decoding unit 8, the data of the all-white line buffer is repeated by the number of lines corresponding to the bottom margin amount, and the code is encoded. Transfer to the decryption unit 8. Furthermore, the image data of the left end margin and the right end margin included in the body CT are generated when the data of each line is transferred to the line buffer.

Therefore, save 1 in the page buffer.
The image data for a page need only be the data of the character line portion of the main body CT, and therefore the capacity required for the page buffer can be greatly reduced.

Further, since the processing time for generating the data of the all-white line portion can be omitted, the processing time for generating the image data can be greatly shortened.

By the way, in the above-mentioned embodiment, the text CT
When a "line feed" code appears in, the character line is padded with "blanks". By using the data of the all white line buffer in this part as well, the page buffer capacity can be further reduced. At the same time, the processing time can be shortened.

Such an embodiment will be described below.

In this embodiment, first, a character number table showing the relationship between the character line number and the number of characters as shown in FIG. 13A is formed, and "line feed" as shown in FIG. A line feed line number table that stores the numbers of the character lines in which the code appears is formed, and the encoding process is executed by referring to this number table.

FIG. 14 and FIG. 15 show an example of processing for saving one page of image data in the page buffer according to this embodiment.

First, a counter i for storing the position in the digit direction of the graphic character to be converted into image data, and the row direction position of the character line for the graphic character to be converted into image data. The counter j and the counter k for storing the line position to be converted in one graphic character are cleared to 0 (process 701), the number of characters in each character line of the page is extracted, and A character number table representing the relationship between the line number and the number of characters is formed (process 70).
2).

Then, the number of characters in the j-th line is taken out from the character number table and set in the variable LNa (process 70).
3). Next, the character code data of the i-th digit of the j-th line is input (process 704), and it is checked whether the character code data is a "line feed" code or a "line feed" code (determination) 705, 706). If the character code data is neither a "line feed" code nor a "line feed" code, and the result of determination 106 is NO, the font data corresponding to the character code data is taken out from the font data memory 4 (process 707).

When the font data is extracted in this way, 16-bit data of the k-th line, that is, 2-byte data is obtained (process 708). Next, the 2-byte data is doubled bit by bit to form 4-byte data, and further 4-byte all-white data of "0000" is added to the 4.5-byte transfer data (see FIG. 5).
(See (b)) is formed (process 709).

Next, the address (transfer address) of the page buffer that stores the transfer data is calculated (process 71).
0), the formed transfer data is stored in the page buffer of the transfer address (data transfer; processing 711). Next, the value of the counter k is incremented by 1 (process 712), and it is checked whether the value of the counter k matches 16 (decision 7).
13). When the result of the determination 713 is NO, the process 70 is performed in order to save the image data of the line next to the font data currently fetched in the page buffer.
Return to 8.

When the result of the judgment 713 is YES, all the image data of one font data has been saved in the page buffer, so the value of the counter i is incremented by 1 (step 714) and the value of the counter i is stored in the variable LNa. It is checked whether the value is equal to or more than the value (decision 715). Judgment 7
When the result of 15 is NO, the process returns to step 704 to save the image data of the next character in the same character line in the page buffer.

When the result of judgment 715 is YES, the image data of one character line has been stored in the page buffer, so the value of the counter i is cleared to 0 (process 71).
6) The value of the counter j is incremented by 1 (process 717), and it is checked whether the value of the counter j is nm or more (decision 718). When the result of determination 718 is YES, image data for one page has been stored in the page buffer, so this processing ends. When the result of determination 121 is NO, the process returns to step 703 to save the image data of the remaining character lines.

When the "line feed" code is detected and the result of the judgment 706 is YES, the character line number (value of j) at that time is added to the line feed line number table (process 719). , Proceeds to processing 716. When the "line feed" code is detected, the result of judgment 705 is YE.
When S is reached, the process proceeds to step 716 to end the processing of the character line.

FIG. 16 shows an example of processing in this embodiment when transferring image data to the encoding / decoding unit 8.

First, based on the value of the upper margin amount information of the management information of the document file at that time, the upper margin line number representing the number of lines corresponding to the upper margin amount is calculated (process 801), and the lower margin amount information is calculated. The number of lines corresponding to the lower end margin amount is calculated based on the value of (1), and the number of pixels corresponding to the left end margin amount (the number of bits) is calculated based on the value of the left end margin amount information. Is calculated (step 803), and the number of line spacing lines representing the number of lines corresponding to the line spacing is calculated (step 804).

Next, the upper margin coding process (process 805) for coding the image data of the upper margin part is executed. Then, it is checked whether the line number of the character line at that time is registered in the line feed line number table (decision 806), and when the result of the determination 806 is YES,
One blank character line encoding process (process 807) for encoding one blank character line is executed, and the result of the determination 805 is N.
When it becomes O, the one character line encoding process (process 808) for encoding the image data of one character line is executed. In this way, when the encoding for one character line is completed, the line interval encoding process (process 809) for encoding the image data of the line interval between the next character line is executed.

Here, it is checked whether or not the next character line remains (decision 810). If the result of the judgment 810 is YES, the process returns to step 806 to execute the encoding process of the next character line. When the result of the judgment 810 is NO, the lower end margin encoding process (process 811) for encoding the image data of the lower end margin portion is executed, and the encoding process of the image data for one page is completed.

Of these processes, the upper margin coding process, the line interval coding process, and the lower margin coding process are the same as those in the above-mentioned embodiment, and therefore their explanations are omitted.

FIG. 17 shows an example of the one-character line encoding process.

First, the number of characters of the character line generated at that time is input from the number-of-characters table (process 901), the difference between the number of characters and nc is multiplied by the value of Δx, and the number of blank pixels at the right end (FIG. 13C). DRR) is calculated (process 902).
Next, the value of Δy is set in the counter Ln (Process 9)
03).

Then, as shown in FIG. 13C, the data "0" column having the number of bits corresponding to the left end margin pixel number dLM is set at the left end of the line buffer used at that time (process 904). From the position immediately after, the image data dCC for the number of characters of the character line to be encoded at that time
Is transferred to the line buffer (process 905). Next, the data “0” column having the number of bits corresponding to the rightmost blank pixel number dRR is transferred to the line buffer from the position immediately after the image data dCC (process 906).

Next, after decrementing the value of the counter Ln by 1 (step 907), it is checked whether or not the value of the counter Ln is equal to 0 (decision 908). When the result of the decision 908 is NO, step 904 Then, the image data of the remaining lines are transferred back to.

When the result of determination 908 is YES, the image data of Ln lines stored in the line buffer at that time is transferred to the encoding / decoding unit 8 and is encoded (process 909).

FIG. 18 shows an example of one blank line encoding process.

First, a value of the number of character line lines Δx is set in the counter Ln (process 1001). Then, it is checked whether the value of the counter Ln is equal to 0 (decision 10).
02). When the result of the determination 1002 is NO, the value of the counter Ln is decremented by 1 (process 1003), and then the data of the all-white line buffer is transferred to the encoding / decoding unit 8 (process 1004). ),
Return to decision 1002. When the result of determination 1002 is YES, the coding of one blank line portion has been completed, and this processing is ended.

In the above embodiment, the case where the image data stored in the page buffer is transferred to the encoding / decoding unit 8 has been described, but the transfer of the image data to the plotter 6 is also realized by the same process. can do.

By the way, in the above-mentioned embodiment, the A4 size document file is used and
Although the case where the standard resolution of the group 3 facsimile apparatus is used as the resolution of the image data has been described, the present invention can be applied in the same manner even when conditions other than these conditions are applied.

Further, although the present invention is applied to the group 3 facsimile apparatus provided with the floppy disk apparatus in the above-mentioned embodiment, the present invention is also applied to the communication terminal apparatus having other similar functions. Can be applied. In that case, a communication function other than the group 3 facsimile machine can be used.

[0095]

As described above, according to the present invention,
Since the page buffer means stores the image data of the portion excluding the blank portion of the page, the capacity required for the page buffer means can be reduced, and the device cost can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a group 3 facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic diagram for explaining an example of a line buffer, an all-white line buffer, and font data.

FIG. 3 is a schematic diagram showing an example of a page configuration.

FIG. 4 is a schematic diagram showing an example of management information.

FIG. 5 is a schematic diagram showing a configuration example of a page buffer.

FIG. 6 is a flowchart showing a part of a processing example when data is stored in a page buffer.

FIG. 7 is a flowchart showing another part of a processing example when data is stored in a page buffer.

FIG. 8 is a flowchart showing an example of encoding processing.

FIG. 9 is a flowchart showing an example of an upper margin coding process.

FIG. 10 is a flowchart showing an example of 1-character line encoding processing.

FIG. 11 is a flowchart showing an example of line spacing encoding processing.

FIG. 12 is a flowchart showing an example of a bottom margin coding process.

FIG. 13 is a schematic diagram for explaining another embodiment of the present invention.

FIG. 14 is a flowchart showing a part of another processing example when data is stored in a page buffer.

FIG. 15 is a flowchart showing another portion of another processing example when data is stored in the page buffer.

FIG. 16 is a flowchart showing another example of encoding processing.

FIG. 17 is a flowchart showing another example of the one-character line encoding process.

FIG. 18 is a flowchart showing an example of one blank character line encoding process.

[Explanation of symbols]

 1 system control unit 2 system memory 4 font data memory 8 encoding / decoding unit 9 floppy disk device 10 floppy disk

Claims (7)

[Claims] 1. Floppy disk reading means for reading and inputting recorded information of a floppy disk, and data of a document file stored in the floppy disk by the floppy disk reading means are input and display image data of the document file data is displayed. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. A data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, The file consists of multiple pages, and each page contains the content displayed in the text of that page. Includes body data formed by arranging a plurality of constituent graphic character codes, and upper margin data representing the amount of blank space provided from the upper end of the display information carrier to the start position of the body. The display image data excluding the margin portion corresponding to the margin data is formed and stored in the page buffer means, and the data transfer means forms all white data of the number of lines corresponding to the upper end margin data. A communication terminal device, characterized in that, after being transferred to said encoding means, display image data stored in said page buffer means is transferred to said encoding means. 2. Floppy disk reading means for reading and inputting recorded information of a floppy disk, and data of a document file stored in the floppy disk by the floppy disk reading means are input, and display image data of the document file data is input. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. A data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, The file consists of multiple pages, and each page contains the content displayed in the text of that page. The data conversion means includes a body data formed by arranging a plurality of constituent graphic character codes, and bottom margin data representing an amount of a margin provided from the end position of the body to the lower end of the display information carrier. The display image data excluding the margin portion corresponding to the margin data is formed and stored in the page buffer means, and the data transfer means converts the display image data stored in the page buffer means into the encoding means. The communication terminal device is characterized in that after the transfer, the all white data of the number of lines corresponding to the lower end margin data is formed and transferred to the encoding means. 3. Floppy disk reading means for reading and inputting recorded information of a floppy disk, and data of a document file stored in the floppy disk by the floppy disk reading means is input, and display image data of the document file data is input. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. A data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, The file consists of multiple pages, and each page contains the content displayed in the text of that page. Main body data in which a plurality of constituent graphic character codes are arranged, upper end margin data indicating the amount of upper end margin provided from the upper end of the display information carrier to the start position of the above text, and display information carrier from the end position of the above text Bottom margin data representing the amount of bottom margin to be provided up to the bottom of the data is included, and the data conversion means removes the top margin corresponding to the top margin data and the bottom margin corresponding to the bottom margin data. The display image data is formed and stored in the page buffer means, and the data transfer means forms the all white data of the number of lines corresponding to the upper end margin data and transfers it to the encoding means, and then the page. The display image data stored in the buffer means is transferred to the encoding means, and then,
A communication terminal device, wherein all white data of the number of lines corresponding to the lower end margin data is formed and transferred to the encoding means. 4. Floppy disk reading means for reading and inputting recorded information of a floppy disk, and data of a document file stored in the floppy disk by the floppy disk reading means are input and display image data of the document file data is displayed. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. A data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, The file consists of multiple pages, and each page contains the content displayed in the text of that page. The data conversion means includes the body data formed by arranging a plurality of graphic character codes constituting the data and the left margin data representing the amount of the margin provided from the left end of the display information carrier to the left end of the display area occupied by the body. , The display image data excluding the margin portion corresponding to the left end margin data is formed and stored in the page buffer means, and the data transfer means stores the display image data stored in the page buffer means. When one line is transferred, blank white image data corresponding to the left margin data is formed and transferred to the encoding means, and then the display image data stored in the page buffer means is transferred to the encoding means. A communication terminal device characterized by transferring. 5. Floppy disk reading means for reading and inputting recorded information of a floppy disk, and data of a document file stored in the floppy disk by the floppy disk reading means are input, and display image data of the document file data is input. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. A data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, The file consists of multiple pages, and each page contains the content displayed in the text of that page. The data conversion means includes main body data in which a plurality of constituent graphic character codes are arranged, and right end margin data representing the amount of a margin provided from the right end of the display area occupied by the main body to the right end of the display information carrier. , Forming display image data excluding a margin portion corresponding to the right end margin data and storing the display image data in the page buffer means, and the data transfer means stores the display image data stored in the page buffer means. When transferring one line, after the display image data stored in the page buffer means is transferred to the encoding means, white image data of a margin corresponding to the right end margin data is formed and then the encoding means is transferred to the encoding means. A communication terminal device characterized by transferring. 6. Floppy disk reading means for reading and inputting recorded information of a floppy disk, and data of a document file stored in the floppy disk by the floppy disk reading means are input, and display image data of the document file data is input. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. A data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, The file consists of multiple pages, and each page contains the content displayed in the text of that page. And body data formed by arranging a plurality of graphic character codes constituting the left margin data representing the amount of space provided on the left edge of the display information carrier to the left end of the body occupied display area,
The right end margin data representing the amount of the margin provided from the right end of the display area occupied by the above text to the right end of the display information carrier is included, and the data conversion means includes the margin part corresponding to the left end margin data and the right end margin data. Except that the display image data excluding the above is formed and stored in the page buffer means, and the data transfer means transfers the display image data stored in the page buffer means by one line, the left margin data. To form the white image data of the margin corresponding to the above, and transfer it to the encoding means, and transfer the display image data stored in the page buffer means to the encoding means, and to display the margin image data corresponding to the right end margin data. A communication terminal device, characterized in that white image data is formed and transferred to the encoding means. 7. Floppy disk reading means for reading and inputting recorded information of a floppy disk, and data of a document file stored in the floppy disk by the floppy disk reading means are input, and display image data of the document file data is input. Data conversion means for forming each page, page buffer means for temporarily storing the display image data formed by the data conversion means, and encoding means for encoding and compressing the display image data to form transmission image information. A data transfer means for transferring the display image data stored in the page buffer means to the encoding means, and a transmission means for transmitting the transmission image information formed by the encoding means to a partner terminal, The file consists of multiple pages, and each page contains the content displayed in the text of that page. Includes text data that is an array of a plurality of graphic character codes that make up the line data and line spacing data that represents the spacing between character lines in the text. The data conversion means includes a line spacing margin portion corresponding to the line spacing data. The display image data excluding the above is formed and stored in the page buffer means, and the data transfer means stores the display image data for one character line stored in the page buffer means for each character line. A communication terminal device, characterized in that after being transferred to the encoding means, all white data of the number of lines corresponding to the line interval data is formed and transferred to the encoding means repeatedly.