CN1367464A - Compressed Chinese character library chip - Google Patents
Compressed Chinese character library chip Download PDFInfo
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- CN1367464A CN1367464A CN 02111050 CN02111050A CN1367464A CN 1367464 A CN1367464 A CN 1367464A CN 02111050 CN02111050 CN 02111050 CN 02111050 A CN02111050 A CN 02111050A CN 1367464 A CN1367464 A CN 1367464A
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- 230000006837 decompression Effects 0.000 claims abstract description 25
- 230000006835 compression Effects 0.000 claims description 33
- 238000007906 compression Methods 0.000 claims description 33
- 239000011159 matrix material Substances 0.000 claims description 18
- 230000003139 buffering effect Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 3
- 230000010365 information processing Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The present invention relates to a compressed Chinese character library chip, including memory in which the compressed Chinese character library is stored and decompression processor connected with the above-mentioned memory for reducing compressed Chinese character library, in which the described memory contains decompression program unit and character library compressed data unit; and the described decompression processor includes processing unit and character font parameter register, character size parameter register and buffer memory which are respectively connected with it. Said invention can make the comprssed Chinese character library possess reductino function, can meet requirements for compressing Chinese character library for various information processing equipments, can be used for displaying and printing Chinese characters.
Description
(1) technical field
The present invention relates to a kind of Chinese character memory chip, relate in particular to a kind of compression Chinese character memory chip.
(2) background technology
Usually Chinese character base has two kinds: the first, and the non-compression Chinese character base of little dot matrix (as 16 * 16) 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.The advantage of first kind of Chinese character base is memory space little (0.3MB), need not hard disk, and cost is low, calls easyly, can very simply be incorporated in the various information equipments; Shortcoming is to have only a kind of single line font, and has only a kind of small size Chinese character, as the Chinese character as shown in the mobile phone short message, can't satisfy the demand of information equipment to multi-font, the high-grade Chinese character base of many font sizes.The advantage of second kind of Chinese character base is (as 12 dot matrix to 8192 dot matrix) random convergent-divergent from little dot matrix to the super large dot matrix, font is smoothly attractive in appearance, have multiple font size, simultaneously comprise multiple font again, from the Song typeface, black matrix, regular script, four kinds of base fonts of imitation Song-Dynasty-Style typeface up to tens kinds of fonts such as circle, lishus.As True type (high-fidelity character library) Chinese character base among the Chinese Windows (windows system) of PC; Shortcoming is to take memory space big (every kind of font is up to 3MB), need use hard disk.Though aspect the raising compression ratio technique remarkable progress is being arranged at present, also 3MB can be compressed to below the 0.5MB, 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.In addition, have ready conditions at present and adopt the application apparatus of compression Chinese character base also to have only PC.
(3) summary of the invention
The object of the present invention is to provide a kind of compression Chinese character memory chip of highly versatile, make it both have the easy to use of the non-compression Chinese character base of little dot matrix, with the irrelevant advantage of application apparatus hardware and software platform low layer, the advantage that has high dot matrix curved profile compression Chinese character base multi-font, many font sizes again makes the compression Chinese character base can be by easy being applied in the various messaging devices.
A kind of compression Chinese character memory chip provided by the present invention, comprise the storer that has the compression Chinese character base, be characterized in that it also comprises the decompression processor that is used to compress the Chinese character base reduction that links to each other with storer, wherein: described storer contains decompress(ion) program element and character library packed data unit; Described decompression processor comprises processing unit and coupled respectively font parameter register, font size parameter register and buffering storer.
Above-mentioned compression Chinese character memory chip also is provided with the code table unit in described storer, and in described decompression processor to should being provided with the code table flag register in the code table unit, and this code table flag register links to each other with described microprocessor.
Above-mentioned compression Chinese character memory chip also is provided with the little dot matrix word library of non-compression unit in described storer.
Above-mentioned compression Chinese character memory chip also comprises the external data line that is connected decompression processor and the high address latch between the address wire.
Above-mentioned compression Chinese character memory chip also comprises the password register that links to each other with decompression processor.
Because will having the storer of compression Chinese character base, the present invention combines with decompression processor, make the compression Chinese character base carry restoring function, decompression needn't rely on the processor of application apparatus, the software and hardware self-organizing system, 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 (operating system of the character library of accomplishing and application apparatus, compiler language), hardware (CPU processor etc.) bottom is irrelevant, can be extremely easy satisfy various messaging devices to the compression Chinese character base demand, be applicable to information household appliances, PDA (handheld personal digital assistants), mobile phone, the Chinese character of various messaging devices such as printer shows and prints.Therefore, compression Chinese character memory chip highly versatile provided by the invention.
(4) description of drawings
The present invention compresses the circuit structure block diagram of Chinese character memory chip.
(5) embodiment
As shown in Figure 1, the present invention, i.e. autoreduction compression Chinese character memory chip 1 is made up of the storer 3 and the decompression processor 2 that have the compression Chinese character base, also can comprise high address latch 6 and password register 7.
Built-in processing unit 21, code table flag register 22, font parameter register 23, font size parameter register 24 and buffering storer 25 in the decompression processor 2.Wherein, font parameter register 23 is used to call the Chinese character style of appointment, as the Song typeface, black matrix, regular script, 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 register 24 in conjunction with decompress(ion) program 32 random convergent-divergent character library dot matrix.Decompression processor 2 can adopt various processors, for example: reduction instruction processing unit RISC CPU, the single-chip microcomputer of built-in mathematical operation cells D SP and the application specific processor made with gate array ASIC etc.
There are character set code table 31, decompress(ion) program 32, character library packed data 33 and little matrix Chinese character bank 34 in the storer 3.Storer 3 can adopt various storeies, for example: mask ROM MASK ROM, flash memory Flash RAM, erasable read-only memory EPROM etc.
When application apparatus 8 need compress character library dot array data after reading reduction the Chinese character memory chip from the present invention, send Chinese character set code table sign, Hanzi internal code numerical value, font parameter and font size parameter by data line 4 and address wire 5 to decompression processor 2 and get final product.
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, the font size parameter is deposited in font size parameter register 24, and the ISN numerical value of required Chinese character is admitted in the processing unit 21 of decompression processor 2.Decompression processor 2 is according to the sign of code table flag register, access in the code table in many covers of from character set code table 31, being deposited with the specified character set of application apparatus 8 corresponding in code table, make same set of character library can adapt to the Hanzi internal code of kinds of characters collection, as GB GB2312, GB GB13000, GB GB18030, traditional font sign indicating number Big5, international code unicode etc., therefore, not only can store simplified and unsimplified Hanzi, also can store the Chinese character and the letter of other countries such as Japanese, to adapt to the demand of country variant regional information treatment facility to Chinese character base.From character library packed data 33, find out corresponding packed data in conjunction with the font parameter and the Hanzi internal code in the processor unit 21 of font parameter register 23 again, then, determine the font size sizes by decompress(ion) program 32 according to font size parameter storage 24.Behind the operation decompress(ion) program element 32, obtain and specify the complete dot array data in Chinese character reduction back, temporarily exist in the memory buffer 25 in the decompression processor 2, read for being employed equipment 8 (via data line 4).
For keeping clear, the fireballing characteristics of the little dot matrix word library small character of non-compression, it is directly deposited in the little dot matrix word library unit 34 in the storer 3, judge that when processing unit 21 parameter in the font size parameter registers 24 is little during to certain numerical value (as 16 * 16 points), just directly reading little dot matrix word library from little dot matrix word library 34 is sent to application apparatus 8.
Autoreduction compression Chinese character base product form of the present invention is except chip, also can be encapsulated as various plug and play products, as parallel interface, hard disk (IDE) interface, general serial (USB) interface, electric board (DOC) interface and various memory card interfaces etc., directly suitable with various common interfaces.
Claims (5)
1. one kind is compressed Chinese character memory chip, comprise the storer that has the compression Chinese character base, it is characterized in that it also comprises the decompression processor that is used to compress the Chinese character base reduction that links to each other with storer, wherein: described storer contains decompress(ion) program element and character library packed data unit; Described decompression processor comprises processing unit and coupled respectively font parameter register, font size parameter register and buffering storer.
2. a kind of compression Chinese character memory chip according to claim 1, it is characterized in that, in described storer, also be provided with the code table unit, and in described decompression processor to should being provided with the code table flag register in the code table unit, and this code table flag register links to each other with described microprocessor.
3. a kind of compression Chinese character memory chip according to claim 1 and 2 is characterized in that, also is provided with the little dot matrix word library of non-compression unit in described storer.
4. a kind of compression Chinese character memory chip according to claim 1 and 2 is characterized in that, it also comprises the external data line that is connected decompression processor and the high address latch between the address wire.
5. a kind of compression Chinese character memory chip according to claim 1 and 2 is characterized in that it also comprises the password register that links to each other with decompression processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021110506A CN1172266C (en) | 2002-03-15 | 2002-03-15 | Compressed chinese character library chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021110506A CN1172266C (en) | 2002-03-15 | 2002-03-15 | Compressed chinese character library chip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1367464A true CN1367464A (en) | 2002-09-04 |
| CN1172266C CN1172266C (en) | 2004-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021110506A Expired - Fee Related CN1172266C (en) | 2002-03-15 | 2002-03-15 | Compressed chinese character library chip |
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| Country | Link |
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| CN (1) | CN1172266C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371875C (en) * | 2005-04-21 | 2008-02-27 | 上海集通数码科技有限责任公司 | Universal compressed Chinese character library chip |
-
2002
- 2002-03-15 CN CNB021110506A patent/CN1172266C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
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| CN1172266C (en) | 2004-10-20 |
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Owner name: JITONG DIGITAL CODE TECH CO LTD, SHANGHAI Free format text: FORMER OWNER: CUI WEI Effective date: 20030506 |
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Effective date of registration: 20170223 Address after: 200001 room B609 (3), Beijing East Road, Huangpu District, No. 666, Patentee after: SHANGHAI GOTOP SEMICONDUCTOR CO.,LTD. Address before: 200063 Shanghai No. 201 Ningxia Road, green branch building 9 floor C block Patentee before: Shanghai Jitong Digital Technology Co.,Ltd. |
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Granted publication date: 20041020 Termination date: 20190315 |