JP2622111B2 - Structured document conversion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field to which the Invention Belongs] The present invention relates to a structured document conversion apparatus, in particular, a method of converting document data filed in a computer or the like, that is, any one of a character code, a facsimile image and a graphic command code. Structured blocks such as blocks with attributes, pages containing one or more blocks, document data containing one or more pages, and mixed mode documents containing structure information corresponding to the position and size of these document data The present invention relates to a structured document conversion device for converting data into facsimile image information.

[Conventional technology]

2. Description of the Related Art Conventionally, a conversion device that converts document data filed in a computer or the like into facsimile image information handles unstructured document data including characters and facsimile image information. In other words, no document, such as a mixed mode document, handles structured document data including pages and blocks. That is, document data is converted and output in order from top to bottom in units of character lines or scanning lines, that is, conversion processing is realized only as one-dimensional processing.

FIG. 2 is a block diagram of a conventional conversion apparatus. In FIG. 2, a computer and the like exist on the left side (not shown). On the right side, not shown in FIG. 2, there is a facsimile capable of receiving coded (data-compressed) facsimile data.

That is, the character code data is received by the reception buffer memory 21, the character code output from the reception buffer memory 21 is converted into a character pattern by the character pattern conversion unit 23, and edited on the edit memory 27 for one line. When editing of the lines is completed, the data is encoded by the encoding unit 28, and the encoded data is output to the line via the transmission buffer memory 22. Alternatively, receive encoded facsimile image data in the receive buffer memory.
When the data is received by the facsimile device 21, the facsimile image data output from the reception buffer memory 21 is decoded by the decoding unit 24, and the decoded data is edited in units of scanning lines. After performing the superimposition editing, the same processing is performed as in the processing regarding the character pattern. These series of processes are repeated in strip processing in line units.

The above-described conversion device can convert and output document data in order from top to bottom in units of character lines or scanning lines, that is, only conversion processing as one-dimensional processing can be realized. Document data with expanse, document data with blocks arranged at arbitrary positions in structured documents, etc. cannot be handled.
There is a drawback that can be applied only when the document content is simple.

[Object of the invention]

The present invention solves the above-mentioned drawbacks of the conventional apparatus, and by having an image memory in page units, it is possible to handle structured document data such as a mixed mode including graphics, and to simply convert and output in page units. An object of the present invention is to provide a structured document conversion apparatus that reduces the conversion delay time until the start of output, which would otherwise be large.

[Configuration of the invention]

The structured document conversion device of the present invention includes a character code, a facsimile image, a block having any attribute of a graphic command code, a page including one or more blocks,
An apparatus for converting structured data such as a mixed mode document including document data including one or more pages and structured information corresponding to the position and size of the document data into facsimile image information, wherein the document data Buffer memory for receiving character codes, a character pattern conversion unit mainly including a character pattern ROM for converting character codes into character patterns, a graphic generation unit for converting graphic command codes into graphic patterns, and decoding for decoding encoded facsimile images Unit, an image memory for expanding image information corresponding to a page, an encoding unit for encoding the image information expanded on the image memory, a transmission buffer memory for transmitting data encoded by the encoding unit And performing control based on the received structure information. The control unit takes out the document data received in the reception buffer memory, converts the document data in each block into a character pattern by the character pattern conversion unit in the case of a character code, and converts the figure command code In the case, it is converted into a graphic pattern by the graphic generation unit, and in the case of a facsimile image, it is decoded by the decoding unit, and is developed on the image memory surface according to the structure information included in the received data. When the processing of at least one block is completed, the data on the image memory surface is coded by the coding unit from the upper end of the page for the line in which the content in the page is determined from the time point, and is coded. Data is output to the transmission buffer memory, and then the same conversion is performed for the next block to be processed. The operations of expanding, encoding, and outputting are performed for each block in the corresponding page in order from the one whose top position is closer to the upper end of the corresponding page, and the conversion and expansion of all blocks in the corresponding page are performed. And encoding and output processing are repeated until the processing is completed.

〔Example〕

FIG. 1 is a block diagram showing one embodiment of the present invention, in which 1 is a reception buffer memory, 2 is a transmission buffer memory, 3 is a character pattern converter, 4 is a decoder, 5 is a graphic generator, and 6 is a graphic generator. A control unit 7 is an image memory, and 8 is an encoding unit. A computer and the like are present on the left side in FIG. 1 and emits filed document data (structured data), and the reception buffer memory 1 shown in FIG. 1 receives it. The right side of FIG. 2 is encoded (data-compressed).
There are facsimile machines that can receive facsimile data.

FIG. 1 is characteristically different from FIG. 2 which is an embodiment of the prior art in that a graphic generator 5 and an image memory 7 are provided.

FIG. 3 shows an example of a document structure handled by the structured document conversion apparatus according to the present invention.
Represents a block, and 18 represents document data. Also l ₀ ,
l ₁ , l ₂ ... are lines, and l ₁ , l _2.
.. Indicates a line immediately before a new block appears.

Hereinafter, the operation of the present invention will be described with reference to FIGS.

In FIG. 1, a block having one of the attributes of a character code, a facsimile image, and a graphic command code, a page including one or more blocks, document data including one or more pages, and positions and positions of these document data. The receiving buffer memory 1 receives structured data such as a mixed mode document including structure information corresponding to the size. If the data output from the receiving buffer memory 1 is a block of a character code, the character code conversion unit 3 converts the character code into a character pattern, and if the data is a block of a facsimile image, the decoding unit 4 converts the code into a facsimile image. The data is decoded, and if the data is a block of a graphic command, the graphic data is converted into a graphic pattern by the graphic generating unit 5. These converted data are attached to the document data and received by the page and block output to the control unit 6. The control unit 6 develops the image data on one surface of the image memory 7 in accordance with structural information such as the position and size of the image memory 7. When this processing is completed for at least one block, the data in the image memory 7 is encoded by the encoding unit 8 from the upper end of the page for the line in which the content in the page is determined, and the encoded data is transmitted to the transmission buffer memory. Output to 2. In the example of FIG. 3, developed in the image memory 7 converts the block 12 according to the attributes, coding, the output processing is carried out for l ₀ to l ₁ is a line the contents of the page is confirmed. Subsequently, the same conversion, expansion processing, encoding, and output processing are performed on the next block corresponding to the processing. In the example of FIG. 3, developed in the image memory 7 converts the block 17 according to the attributes, coding, the output processing is carried out for l ₁ to l ₂ is a line the contents of the page is confirmed. In this way, each block is converted in order from the one whose head position is closer to the upper end of the page and developed in the image memory 7, and each time the line in which the content in the page is determined is encoded and output processing is performed. The operation to be performed is repeated for all blocks in the page. The same processing is repeated for the next page. The character pattern conversion unit 3 expands the character pattern ROM and the character pattern read from the character pattern ROM vertically and horizontally and performs a smoothing process when a smoothing process is required, and converts a character pattern having a desired size into a desired size. Consisting of a circuit to obtain. In addition, the expansion processing to the image memory 7
For the character pattern and the facsimile image, the character pattern conversion unit 3 and the decoding unit 4 respectively send the DM to the image memory.
A is executed by A transfer, and the graphic pattern is generated in another working memory and then stored in the image memory 7.
It is executed by DMA transfer or by directly accessing the image memory 7. In order for the above processing to be performed correctly, the block data of the received document data must be sorted from the top in each page according to the position. Processing may be performed, and there is no particular restriction on the content of the document.

〔The invention's effect〕

As described above, according to the present invention, it is possible to handle document data having a two-dimensional spread such as a figure and document data having blocks arranged at arbitrary positions. It has the advantage that it can be converted. When the conversion of the first block is completed, the data can be output to the line, so that the initial conversion delay time can be reduced to only the first block, so that data can be output to the line compared to waiting for the conversion of one page. This has the effect of reducing the waiting time before starting to appear.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment according to the present invention, FIG. 2 is a block diagram of an embodiment according to the prior art, and FIG. 3 is a diagram showing an example of a document structure handled by the structured document conversion device according to the present invention. 1: reception buffer memory, 2: transmission buffer memory 3: character pattern conversion unit, 4: decoding unit, 5: graphic generation unit, 6: control unit, 7: image memory, 8: encoding unit, 11: page, 12 , 13,14,15,16,17 ,: Block, 18: Document.

Claims (1)

(57) [Claims] 1. A block having any one of the following attributes: a character code, a facsimile image, and a graphic command code; a page including one or more blocks; document data including one or more pages; An apparatus for converting structured data such as a mixed mode document including structure information corresponding to a size into facsimile image information, a reception buffer memory for receiving the document data, a character pattern ROM for converting a character code into a character pattern A character pattern conversion unit mainly comprising: a graphic generation unit that converts a graphic command code into a graphic pattern; a decoding unit that decodes an encoded facsimile image; an image memory that develops image information corresponding to a page; An encoding unit that encodes the image information expanded to A transmission buffer memory for transmitting the data encoded by the encoding unit; and a control unit that performs control based on the received structure information. The document data in each block is extracted, and the document data in each block is converted into a character pattern by the character pattern conversion unit in the case of a character code, and is converted into a graphic pattern by the graphic generation unit in the case of a graphic command code, In the case of a facsimile image, the image is decoded by the decoding unit, and is developed on the image memory surface according to the structure information included in the received data. When these processes are completed for at least one block, From the top of the page, the image memory surface Operation of encoding the above data by the encoding unit, outputting the encoded data to the transmission buffer memory, and subsequently performing the same conversion, expansion processing, encoding, and output processing on the next block to be processed. To
For each block in the corresponding page, the head position is performed in order from the one near the upper end in the corresponding page, and it is repeated until the conversion, expansion processing, encoding, and output processing for all the blocks in the corresponding page are completed. A structured document conversion device characterized by being configured.