CN100371875C - Universal compressed Chinese character library chip - Google Patents
Universal compressed Chinese character library chip Download PDFInfo
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- CN100371875C CN100371875C CNB2005100252408A CN200510025240A CN100371875C CN 100371875 C CN100371875 C CN 100371875C CN B2005100252408 A CNB2005100252408 A CN B2005100252408A CN 200510025240 A CN200510025240 A CN 200510025240A CN 100371875 C CN100371875 C CN 100371875C
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Abstract
The present invention relates to a universal compressed Chinese character library chip which comprises an ROM storing character font data of the compressed Chinese character library, a decompression processor for reducing the character font data of the compressed Chinese character library and a read-write memory for running program, wherein the decompression processor is also used as a central processing unit of an application host computer. By using the technical scheme, the present invention raise resource utilization rate since the decompression processor for the Chinese character library is also used as the central processing unit of the application host computer. In addition, the present invention upgrades the original compressed Chinese character library chip; the present invention not only reduces the burden of storage capacity of the application host computer and the central processing unit, but also solves the problems that the words which are not used frequently are difficult to be displayed, etc.; meanwhile, the present invention ensures high quality display or print of small dot matrix Chinese characters to perfect the multiple output types for the Chinese character library.
Description
Technical field
The present invention relates to a kind of Chinese character memory chip, relate in particular to a kind of universal compressed Chinese character memory chip.
Background technology
Usually Chinese character base has two kinds: the first, and the non-compression Chinese character base of little dot matrix (as 16X16) is solidificated in the memory chip usually; The second, high lattice compression curved profile Chinese character base is installed in the PC hard disk usually.Often need to take bigger memory space (every kind of font is up to 10MB) for second kind, need use hard disk.
Aspect the raising compression ratio technique very big progress is being arranged though have now, also 10MB can be compressed to below the 2MB, can be solidificated in the chip, save hard disk, must rely on operation system of software, compiler language (as Windows operating system, C language) and the hardware platform (as Pentium CPU processor) that information equipment provides but fundamental drawback is to compress the operation of the gunzip of Chinese character base.And the software and hardware specification of messaging device is various at present, and this just requires to develop the Chinese character base gunzip again at each different equipment platform, has limited applying of high lattice compression Chinese character base greatly.
Therefore the applicant was the compression Chinese character memory chip that discloses a kind of highly versatile among the Z L 02111050.6 in the patent No. once, be characterized in, it comprises ROM (read-only memory), the decompression processor that is used to compress the Chinese character base reduction that links to each other with this storer (containing the storer that compresses Chinese character base), and wherein: this storer contains decompress(ion) program element and character library packed data unit; This decompression processor comprises processing unit and coupled respectively font parameter register, font size parameter register and buffering storer.The invention enables the compression Chinese character base to carry restoring function, decompression needn't rely on the processor of application apparatus, rely on the decompression processor of self to finish the reduction of compression Chinese character base, application apparatus only needs to compress Chinese character base and is considered as simple non-compressed information Chinese library and calls, thereby the software of the character library of accomplishing and application apparatus, hardware bottom layer have nothing to do, can be extremely easy satisfy the demand of various messaging devices to the compression Chinese character base, the Chinese character that is applicable to various messaging devices shows and prints.
Because above-mentioned character library decompression processor arithmetic capability is very powerful, can satisfy the performance requirement of applied host machine to central processing unit fully, if it only is undoubtedly a kind of wasting of resources as the decompression processor of character library special use.In addition, this compression Chinese character memory chip this have following point:
The first, the decompress(ion) program only resides in the ROM (read-only memory) in the former patent, and during operation decompress(ion) program, processor is the fetch program from ROM (read-only memory) directly, slow 3 to 5 times of the reading speeds of common ROM (read-only memory) than read-write memory, so travelling speed is difficult to improve.
Second, former patent only provides cover little dot matrix (15 * 16 a dot matrix) Chinese character, be difficult to guarantee the font quality of little dot matrix Chinese character (24 * 24 dot matrix are following), for guaranteeing must the font quality, the little matrix Chinese character bank of many covers (as 11 * 12 points, 15 * 16 points, 19 * 20 points, 24 * 24 etc.) need be arranged, and this will take too many ROM capacity.
The 3rd, because the non-singularity of the character set standard of present Chinese character base, as GB character set GB2312, GB 12345, GB13000, GB 18030, international code Unicode, Big5 BIG5 etc.The Chinese character base user of different regions uses the character set of various criterion, and the character set of various criterion is incompatible, and therefore, the Chinese character base user of different regions just has inconvenience when exchanging mutually, for example, will produce mess code when the cellphone subscriber sends short messages mutually.Though former patent is supported multiple character set standard, its required word-base data storage space is very huge, causes chip cost to increase greatly.
The 4th; for satisfying needs to deserted word; we can adopt large character set GB18030 (27 usually; 533 Chinese characters); but, as adopt former patent library stores scheme in view of its memory space is 4 times of GB2312 (6,763 Chinese character); when the storing multiple sets font, can't take into account the big contradiction of number of words complete sum memory space.
In addition, be the pattern of perfect Chinese character storehouse output, the different array formats of, italic wide to word height, word, underscore and output dot matrix etc. have proposed the improvement demand.
Summary of the invention
The defective and the growth requirement of the compression Chinese character memory chip that the basis is above-mentioned, the objective of the invention is to former compression Chinese character memory chip is upgraded, a kind of universal compressed Chinese character memory chip is provided, not only can reduce the burden of applied host machine memory capacity and central processing unit, more can solve such as problems such as deserted word can't show, and guaranteed the high-quality display of little dot matrix Chinese character simultaneously, the perfect multi-output type formula of Chinese character base.
A kind of universal compressed Chinese character memory chip provided by the present invention, comprise the ROM (read-only memory) that has the compressed information Chinese library font data and be used for the decompression processor that the compressed information Chinese library font data reduces, it is characterized in that, it also comprises the read-write memory that is used for working procedure that links to each other with described decompression processor, and wherein: described decompression processor is the central processing unit of double as applied host machine also.
In above-mentioned universal compressed Chinese character memory chip, be provided with in the read-write memory resident program the program read-write cell, be used to move and cushion the operation read-write cell in space, between this read-write memory and the applied host machine bus to realize communicating by letter with clock synchronization mode.
In above-mentioned universal compressed Chinese character memory chip, the operation read-write cell contains twoport bus logic unit, its with the applied host machine bus between with asynchronous system realization high-speed communication.
In above-mentioned universal compressed Chinese character memory chip, be mounted with matrix Chinese character bank packed data unit in the ROM (read-only memory).
In above-mentioned universal compressed Chinese character memory chip, also be mounted with curve Chinese character base packed data unit in the ROM (read-only memory).
In above-mentioned universal compressed Chinese character memory chip, the packed data unit of dot matrix word library adopts distortionless Huffman compress mode.
In above-mentioned universal compressed Chinese character memory chip, the packed data unit of dot matrix word library adopts the arithmetic coding mode.
In above-mentioned universal compressed Chinese character memory chip, ROM (read-only memory) comprises the code table unit, described decompression processor comprises the code table flag register, code table unit in the ROM (read-only memory) links to each other with code table flag register in the decompression processor, the same section of some cover kinds of characters collection character library packed datas is merged storage, only different piece is stored respectively, decompression processor is according to the character set parameter of appointment in the code table flag register, assembling section in the word-base data and different piece are reconfigured, become the complete word-base data of designated character collection.
In above-mentioned universal compressed Chinese character memory chip, also comprise the output format register in the decompression processor, be used to be provided with different output dot matrix array formats.
In above-mentioned universal compressed Chinese character memory chip, also comprise the font parameter register in the decompression processor, be used to be provided with the wide and italic of different word height, word, underscore, outline letters font.
In above-mentioned universal compressed Chinese character memory chip, also load extra curvature Chinese character packed data unit and dot matrix foreign language character compression data cell in the ROM (read-only memory).
In above-mentioned universal compressed Chinese character memory chip, also comprise the ISN register in the processor unit of decompression processor, be used to be provided with designated character collection ISN.
Adopted above-mentioned technical solution, the present invention simultaneously as the central processing unit of applied host machine, has improved resource utilization with the character library decompression processor.In addition, the present invention upgrades to former compression Chinese character memory chip, has following advantage:
The first, the gunzip in the ROM (read-only memory) is resided in read-write memory program read-write cell, read-write memory is with zero wait state high-speed cruising decompress(ion) program, and do not take the read-write memory resource of applied host machine.
The second, except containing curve Chinese character base packed data unit, also include the little dot matrix character data of many covers through overcompression, in the high-quality output of satisfying little dot matrix font, shared memory space is reduced to minimum.
The 3rd, provide curve Chinese character base packed data unit and matrix Chinese character bank packed data unit, the character set of promptly many cover Chinese character basies, different compatible problems when exchanging mutually with the Chinese character base user who solves different regions, various criterion character set.And the same section in the kinds of characters collection word-base data is merged, and different piece and same section with required character set word-base data during decompression are reassembled into complete word-base data, to reach, have both supported many cover character set, save storage space again.
In addition, also provide the font parameter register in the decompression processor, the pattern of perfect Chinese character base output has satisfied the improvement demand of the different array formats of, italic wide to word height, word, underscore and output dot matrix.
Description of drawings
Fig. 1 is the circuit structure block diagram of the universal compressed Chinese character memory chip of the present invention.
Fig. 2 is the word-base data merging/reorganization schematic diagram of the universal compressed Chinese character memory chip of the present invention.
Fig. 3 (a)～(d) is respectively four kinds of output dot matrix format charts (horizontal horizontally-arranged, horizontal vertical setting of types, perpendicular horizontally-arranged and the perpendicular vertical setting of types of putting put) of the universal compressed Chinese character memory chip of the present invention.
Embodiment
As shown in Figure 1, the present invention, promptly universal compressed Chinese character memory chip 1 is made up of ROM (read-only memory) 3, decompression processor 2 and read-write memory 4, comprises that also communication bus 5 and code table are provided with pin 6.
Internal processor unit 21, code table flag register 22, font parameter register 23, font size parameter register 24, font parameter register 25 and output format register 26 in the decompression processor 2.Wherein, comprise ISN register 211 in the processor unit 21; The character set parameter that code table flag register 22 is used to specify, processor unit 21 is according to character set parameter in the code table flag register 22 and code table 31, the different piece of the merge content of the many covers kinds of characters collection word-base data same section in curve Chinese character base packed data 34 and the matrix Chinese character bank packed data 36 with storage respectively reconfigured, become the complete character library packed data of designated character collection.
As Fig. 2 word-base data merging/reorganization principle Figure 100, wherein comprise character set and merge word-base data 200, character set word-base data () 300, character set word-base data (two) 400 and character set word-base data (three) 500.Comprise different Chinese character part () 3001 and identical Chinese character part () 3002 in the described character set word-base data () 300, wherein, the different piece that has the character set word-base data in the different Chinese character part () 3001 has the same section of character set word-base data in the identical Chinese character part () 3002.Comprise different Chinese character part (two) 4001 and identical Chinese character part (two) 4002 in the described character set word-base data (two) 400, wherein, the different piece that has the character set word-base data in the different Chinese character part (two) 4001 has the same section of character set word-base data in the identical Chinese character part (two) 4002.Comprise different Chinese character part (three) 5001 and identical Chinese character part (three) 5002 in the described character set word-base data (three) 500, wherein, the different piece that has the character set word-base data in the different Chinese character part (three) 5001 has the same section of character set word-base data in the identical Chinese character part (three) 5002.
Described character set merges in the word-base data 200 and comprises the identical Chinese character part 2002 with character set of character set different Chinese character part 2001, wherein, there is total data in different Chinese character part () 3001, different Chinese character part (two) 4001 and the different Chinese character part (three) 5001 in the character set different Chinese character part 2001; There is the total data in identical Chinese character part () 3002, identical Chinese character part (two) 4002 and the identical Chinese character part (three) 5002 in the identical Chinese character part 2002 of character set.
Font parameter register 23 in the decompression processor 2 is used to call the Chinese character style of appointment, as the Song typeface, black matrix, regular script and imitation Song-Dynasty-Style typeface etc.; Font size parameter register 24 is used to call the Chinese character font size size of appointment, is unit with the dot matrix, can be according to the parameter of font size parameter register 24 in conjunction with solution curve gunzip 32 and the dot matrix gunzip 33 random convergent-divergent and the character library dot matrix that reduce; Font parameter register 25 is used to be provided with fonts such as the wide and italic of different word height, word, underscore, outline letters; Output format register 26 is used to be provided with different output 300 dot matrix array formats.As Fig. 3 (a), the output dot matrix form is horizontal horizontally-arranged, and promptly the horizontal horizontally-arranged of byte to the end of line line feed, is used as display.Fig. 3 (b), output dot matrix form are horizontal vertical setting of types, and promptly byte vertical setting of types anyhow changes row to the row end, uses as LCD display.Fig. 3 (c), the output dot matrix form is the perpendicular horizontally-arranged of putting, that is: the perpendicular horizontally-arranged of putting of byte to the end of line line feed, is used as tax-control cash register.Fig. 3 (d), the output dot matrix form is the perpendicular vertical setting of types of putting, promptly the perpendicular vertical setting of types of putting of byte to the line feed of the row end, is used as printer.
There are code table unit 31, curve gunzip unit 32, dot matrix gunzip unit 33, curve Chinese character base packed data unit 34, extra curvature Chinese character packed data unit 35, matrix Chinese character bank packed data unit 36 and dot matrix foreign language character compression data cell 37 in the ROM (read-only memory) 3.
During character library dot array data after applied host machine 7 need read reduction the universal compressed Chinese character memory chip 1 from the present invention, send order parameters such as Chinese character set code table sign, Hanzi internal code numerical value, font parameter, font size parameter, font parameter and output format to decompression processor 2 by communication bus 5 (comprising data bus, address bus and control signal) and get final product, the different high electronegative potential that Chinese character set code table sign also can be directly be provided with pin 6 by the code table that chip is set sends with hardware mode.
Chinese character set code table sign is deposited in the code table flag register 22 in the decompression processor 2 then, font parameter is deposited in the font parameter register 23 in the decompression processor 2, the font size parameter is deposited in the font size parameter register 24 in the decompression processor 2, the font parameter is deposited in the font parameter register 25 in the decompression processor 2, the output format parameter is deposited in the output format register 26 in the decompression processor 2, and the ISN numerical value of required Chinese character is admitted to the ISN register 211 in the processing unit 21 of decompression processor 2.
For guaranteeing the clear characteristics attractive in appearance of little dot matrix word library small character, point battle array packed data is deposited in the matrix Chinese character bank packed data 36 of ROM (read-only memory) 3.When processor unit 21 judges that parameter in the font size parameter registers 24 is little during to certain numerical value (as 24 * 24 points, 19 * 20 points, 15 * 16 points), just, from matrix Chinese character bank packed data 36, read little dot matrix word library packed data according to code table flag register 22 and ISN register 211.
The present invention deposits extra curvature Chinese character packed data in the ROM (read-only memory) 3 extra curvature Chinese character packed data 35, and dot matrix foreign language character compression data deposit the dot matrix foreign language character compression data 37 in the ROM (read-only memory) 3, its reduction mechanism and reducing program Chinese character in.
The compression method of the dot matrix font packed data in matrix Chinese character bank packed data unit 36 in the ROM (read-only memory) 3 and the dot matrix foreign language character compression data cell 37 also can adopt distortionless Huffman compression method.
Comprise operation read-write cell 41 and program read-write cell 42 in the read-write memory 4, wherein move and also comprise twoport bus logic 411 in the read-write cell.When the decompression processing unit initialization, curve gunzip 32 in the ROM (read-only memory) 3 and dot matrix gunzip 33 are downloaded in the program read-write cell 42.Operation read-write cell 41 is by realizing efficient communication with asynchronous system between twoport logic 411 and the applied host machine 7.Also can be in the operation read-write memory 41 without twoport bus logic 411, with between the applied host machine 7 to realize easy communication with the method for synchronization of clock.
But the decompression processor 21 in the universal compressed Chinese character memory chip 1 is the central processing unit 71 of double as applied host machine 7 also.At this moment, universal compressed Chinese character memory chip 1 can save central processing unit 71 in the applied host machine 7 simultaneously without twoport bus logic 411, controls applied host machine by the decompression processor 2 of universal compressed Chinese character memory chip 1.
Claims (12)
1. universal compressed Chinese character memory chip, comprise the ROM (read-only memory) that has the compressed information Chinese library font data and be used for the decompression processor that the compressed information Chinese library font data reduces, it is characterized in that, it also comprises the read-write memory that is used for working procedure that links to each other with described decompression processor, be provided with in the described read-write memory resident program the program read-write cell, be used to move and cushion the operation read-write cell in space, wherein: described decompression processor is the central processing unit of double as applied host machine also.
2. universal compressed Chinese character memory chip according to claim 1 is characterized in that, between described read-write memory and the applied host machine bus to realize communicating by letter with clock synchronization mode.
3. universal compressed Chinese character memory chip according to claim 1 is characterized in that, described operation read-write cell contains twoport bus logic unit, realizes high-speed communication with asynchronous system between itself and the applied host machine bus.
4. according to claim 1 or 2 or 3 described universal compressed Chinese character memory chips, it is characterized in that, be mounted with matrix Chinese character bank packed data unit in the described ROM (read-only memory).
5. according to claim 1 or 2 or 3 described universal compressed Chinese character memory chips, it is characterized in that, also be mounted with curve Chinese character base packed data unit in the described ROM (read-only memory).
6. universal compressed Chinese character memory chip according to claim 4 is characterized in that, the packed data unit of described dot matrix word library adopts distortionless Huffman compress mode.
7. universal compressed Chinese character memory chip according to claim 4 is characterized in that, the packed data unit of described dot matrix word library adopts the arithmetic coding mode.
8. universal compressed Chinese character memory chip according to claim 1, it is characterized in that, described ROM (read-only memory) comprises the code table unit, described decompression processor comprises the code table flag register, code table unit in the ROM (read-only memory) links to each other with code table flag register in the decompression processor, the same section of some cover kinds of characters collection character library packed datas is merged storage, only different piece is stored respectively, decompression processor is according to the character set parameter of appointment in the code table flag register, assembling section in the word-base data and different piece are reconfigured, become the complete word-base data of designated character collection.
9. universal compressed Chinese character memory chip according to claim 1 is characterized in that, also comprises the output format register in the described decompression processor, is used to be provided with different output dot matrix array formats.
10. universal compressed Chinese character memory chip according to claim 1 is characterized in that, also comprises the font parameter register in the described decompression processor, is used to be provided with the wide and italic of different word height, word, underscore, outline letters font.
11. universal compressed Chinese character memory chip according to claim 1 is characterized in that, also loads extra curvature Chinese character packed data unit and dot matrix foreign language character compression data cell in the described ROM (read-only memory).
12. universal compressed Chinese character memory chip according to claim 1 is characterized in that, also comprises the ISN register in the processor unit of described decompression processor, is used to be provided with designated character collection ISN.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100252408A CN100371875C (en) | 2005-04-21 | 2005-04-21 | Universal compressed Chinese character library chip |
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| CNB2005100252408A CN100371875C (en) | 2005-04-21 | 2005-04-21 | Universal compressed Chinese character library chip |
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| CN1855023A CN1855023A (en) | 2006-11-01 |
| CN100371875C true CN100371875C (en) | 2008-02-27 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261825B (en) * | 2008-04-24 | 2010-06-16 | 中兴通讯股份有限公司 | A word library management method for mobile terminal system |
| CN102426565A (en) * | 2011-11-03 | 2012-04-25 | 北京华大智宝电子系统有限公司 | SOC (System on Chip) chip with font processing function |
| CN102708191A (en) * | 2012-05-15 | 2012-10-03 | 通唐软件技术（湖南）有限公司 | Word stock coding and decoding method capable of saving memory |
| CN111859859B (en) * | 2020-06-15 | 2023-08-15 | 福建升腾资讯有限公司 | Dot matrix word stock conversion method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1020004C (en) * | 1989-06-15 | 1993-03-03 | 烟台市芝罘区电脑开发公司 | Technical method to realize Chinese sound-data coding |
| CN1143212A (en) * | 1995-02-27 | 1997-02-19 | 支超有 | Computer extennal connected Chinese card for supporting external equipment output Chinese character |
| JPH09231235A (en) * | 1996-02-27 | 1997-09-05 | Toshiba Corp | External dictionary retrieval device and method therefor |
| CN1289969A (en) * | 1999-09-23 | 2001-04-04 | 湖南计算机股份有限公司 | Method for reading from Chinese-character library by CPU chip in Chinese or Western display terminal |
| CN1172266C (en) * | 2002-03-15 | 2004-10-20 | 上海集通数码科技有限责任公司 | Compressed chinese character library chip |
-
2005
- 2005-04-21 CN CNB2005100252408A patent/CN100371875C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1020004C (en) * | 1989-06-15 | 1993-03-03 | 烟台市芝罘区电脑开发公司 | Technical method to realize Chinese sound-data coding |
| CN1143212A (en) * | 1995-02-27 | 1997-02-19 | 支超有 | Computer extennal connected Chinese card for supporting external equipment output Chinese character |
| JPH09231235A (en) * | 1996-02-27 | 1997-09-05 | Toshiba Corp | External dictionary retrieval device and method therefor |
| CN1289969A (en) * | 1999-09-23 | 2001-04-04 | 湖南计算机股份有限公司 | Method for reading from Chinese-character library by CPU chip in Chinese or Western display terminal |
| CN1172266C (en) * | 2002-03-15 | 2004-10-20 | 上海集通数码科技有限责任公司 | Compressed chinese character library chip |
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Effective date of registration: 20170327 Address after: 200001 room B609 (3), Beijing East Road, Huangpu District, No. 666, Patentee after: Shanghai high pass Semiconductor Co., Ltd Address before: Shanghai City 200233 Tianzhou Road No. 99 new Mao Building Room 601 Patentee before: Jitong Digital Science and Technology Co., Ltd., Shanghai |
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