CN101872412B - The generation method of the code table that a kind of bar code decoding process uses - Google Patents
The generation method of the code table that a kind of bar code decoding process uses Download PDFInfo
- Publication number
- CN101872412B CN101872412B CN201010188986.1A CN201010188986A CN101872412B CN 101872412 B CN101872412 B CN 101872412B CN 201010188986 A CN201010188986 A CN 201010188986A CN 101872412 B CN101872412 B CN 101872412B
- Authority
- CN
- China
- Prior art keywords
- equal
- sign character
- serial
- described step
- code
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a kind of bar code decoding method, the method comprises: generate the first Serial No. and the second Serial No.; Utilize the second Serial No. generated codeword; Utilize the first Serial No. to generate sign character, and validity judgement is carried out to sign character; Determine to judge legal sign character and the corresponding relation of code word.Pass through said method, the first Serial No. and the second Serial No. is utilized to generate sign character and code word respectively, and by changing the first Serial No. and the second Serial No. respectively to obtain the corresponding relation of distinct symbols character and code word, directly can generate code table when needed thus, utilize the corresponding relation of sign character in described decoding code table and described code word, find out the target code word of the sign character that correspondence need be decoded, without the need to prestoring code table, reduce the demand of system to ROM.
Description
[technical field]
The present invention relates to the generation method of the code table that a kind of bar code decoding process uses.
[background technology]
Barcode technology be of growing up in computer technology and Information Technology Foundation hold encode, print, identify, data acquisition and processing (DAP) emerging technology.Barcode technology is due to its fast recognition, accurate, reliable and low cost and other advantages, be widely used in the fields such as business, taking care of books, storage, post and telecommunications, traffic and Industry Control, and great effect certainly will be played in " Internet of Things " application of rising gradually.
The bar code be widely used at present comprises bar code and two-dimensional bar code.Bar code is made up of multiple " bar " arranged in parallel and " sky " unit also known as linear bar code, and bar code information is expressed by bar and empty different in width and position.Bar code, just in a direction (being generally horizontal direction) expressing information, does not then express any information in the vertical direction, therefore information capacity and space availability ratio lower, and after bar code is damaged i.e. None-identified.
Two-dimensional bar code is made up of the chequered with black and white particular geometric figure distributed in the two-dimensional direction according to certain rules, and it can expressing information in the two-dimensional direction, therefore information capacity and space availability ratio higher, and there is certain verifying function.Two-dimensional bar code can be divided into stack two-dimensional bar code and matrix two-dimensional barcode.Stack two-dimensional bar code forms by the bar code of multirow cutting back is stacking, and representational stack two-dimensional bar code comprises PDF417, Code 49, Code 16K etc.Matrix two-dimensional barcode is made up of black, the white module be distributed in by pre-defined rule in matrix, and representational matrix two-dimensional barcode comprises Codeone, Aztec, Date MatriX, QR code etc.
Often need to obtain code word by inquiry code table in the bar code decoding process of prior art.Such as, in 929 code tables of PDF 417 bar code, form a sign character by 4 bars and 4 skies, and represent this sign character by these 4 bars and 4 empty number of modules.Each sign character is a corresponding code word respectively.In the bar code decoding process of prior art, need code table to be stored in ROM, the sign character drawn according to scan stripes empty gap when decoding inquires about code table from ROM, and decodes corresponding code word.But code table takies large quantity space in ROM, cause system very large to the demand of ROM.
[summary of the invention]
In order to overcome in prior art the technical matters needing directly to be stored in by code table in ROM and then to cause system very large to the demand of ROM, the invention provides the generation method of the code table that a kind of bar code decoding process uses, the method comprises: generate decoding code table, the step of described generation decoding code table comprises: a1. generates the first Serial No. and the second Serial No.; A2. the second Serial No. generated codeword is utilized; A3. utilize the first Serial No. to generate sign character, and validity judgement is carried out to sign character; A4. determine to judge legal sign character and the corresponding relation of code word; Wherein, determine that the step of the corresponding relation judging legal sign character and code word is specially: sign character is not stored, but the corresponding relation of aforesaid way determination sign character and code word is directly utilized when needs are tabled look-up, maybe will judge that legal sign character sequential storage is in storer, to determine the corresponding relation of sign character and code word according to sign character and memory location thereof when follow-up tabling look-up, directly code table is generated, without the need to being stored in ROM by code table in advance when utilizing hardware logic in system electrification thus or need.
According to one preferred embodiment of the present invention, code table is 929 code tables of PDF417 bar code.
According to one preferred embodiment of the present invention, step a1 comprises: the senary number M=y generating five
1y
2y
3y
4y
5as the first Serial No., generate the decimal number N of three as the second Serial No., and initialization is carried out to M and N.
According to one preferred embodiment of the present invention, comprise in step a2: using N directly as code word.
According to one preferred embodiment of the present invention, step a3 comprises: c1. utilizes bunch number formula: (y
0-y
1+ y
4-y
5) mod 9=0 calculates y
0; C2. sum formula is utilized: (y
0+ y
2+ y
4+ y
6)=9 calculate y
6; C3. following formula is utilized: y
0=x
0+ x
1, y
1=x
1+ x
2, y
2=x
2+ x
3, y
3=x
3+ x
4, y
4=x
4+ x
5, y
5=x
5+ x
6and y
6=x
6+ x
7determine x
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7.
According to one preferred embodiment of the present invention, step c1 comprises further to y
0carry out validity judgement, if y
0illegal, then M is added 1, and repeat step c1.
According to one preferred embodiment of the present invention, in step c1, to y
0carry out validity judgement to comprise and judge y
0whether be less than or equal to 5 and be more than or equal to 0, if y
0be less than or equal to 5 and be more than or equal to 0, then y
0legal, otherwise, y
0illegal.
According to one preferred embodiment of the present invention, step c2 comprises further to y
6carry out validity judgement, if y
6illegal, then M is added 1, and return step c1.
According to one preferred embodiment of the present invention, in step c2, to y
6carry out validity judgement to comprise and judge y
6whether be less than or equal to 8 and be more than or equal to 0, if y
6be less than or equal to 8 and be more than or equal to 0, then y
6legal, otherwise, y
6illegal.
According to one preferred embodiment of the present invention, in step a3, with y
0y
1y
2y
3y
4y
5y
6as sign character.
According to one preferred embodiment of the present invention, step a3 comprises further: c4. judges x
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7whether be less than or equal to 5 and be more than or equal to 0, if there is one group of x
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7all be less than or equal to 5 and be more than or equal to 0, then symbol character is legal, and else symbol character is illegal.
According to one preferred embodiment of the present invention, step a3 comprises further: c5. judges whether sign character corresponds to the current fiducial value in exception list.
According to one preferred embodiment of the present invention, in step c5, current fiducial value in multiple fiducial values of sequential storage in N and exception list is compared, if N is identical with current fiducial value, then symbol character is illegal, and using current fiducial value that next fiducial value in multiple fiducial value compared as next time, if N is not identical with current fiducial value, then symbol character is legal, and keeps current fiducial value constant.
According to one preferred embodiment of the present invention, step a comprises: the octal numeral M=y generating five
1y
2y
3y
4y
5as the first Serial No., generate the decimal number N of three as the second Serial No., and initialization carried out to M and N,
According to one preferred embodiment of the present invention, step a3 comprises: c1. utilizes bunch number formula: (y
0-y
1+ y
4-y
5) mod 9=3 or 6 calculating y
0; C2. sum formula (y is utilized
0+ y
2+ y
4+ y
6)=9 calculate y
6; C3. following formula is utilized: y
0=x
0+ x
1, y
1=x
1+ x
2, y
2=x
2+ x
3, y
3=x
3+ x
4, y
4=x
4+ x
5, y
5=x
5+ x
6and y
6=x
6+ x
7determine x
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7.
According to one preferred embodiment of the present invention, step c1 comprises further to y
0carry out validity judgement, if y
0illegal, then M is added 1, and repeat step c1.
According to one preferred embodiment of the present invention, in step c1, to y
0carry out validity judgement to comprise and judge y
0whether be less than or equal to 7 and be more than or equal to 0, if y
0be less than or equal to 7 and be more than or equal to 0, then y
0legal, otherwise, y
0illegal.
According to one preferred embodiment of the present invention, step c2 comprises further and judges y
6legitimacy, if y
6illegal, then M is added 1, and return step c1.
According to one preferred embodiment of the present invention, in step c2, to y
6carry out validity judgement to comprise and judge y
6whether be less than or equal to 8 and be more than or equal to 0, if y
6be less than or equal to 8 and be more than or equal to 0, then y
6legal, otherwise, y
6illegal.
According to one preferred embodiment of the present invention, comprise in step a2: using N directly as code word, in step c, with y
0y
1y
2y
3y
4y
5y
6as sign character.
According to one preferred embodiment of the present invention, step a3 comprises further: c4. judges x
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7whether be less than or equal to 5 and be more than or equal to 0, if there is one group of x
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7all be less than or equal to 5 and be more than or equal to 0, then symbol character is legal, and else symbol character is illegal.
According to one preferred embodiment of the present invention, code table generating method comprises further: e. judges whether N equals predetermined value, if N equals predetermined value, then and end code table generating method, otherwise, N and M is added 1 respectively and returns step c1.
By above-mentioned code table generating method, directly can generating code table when needed, without the need to storing in ROM by code table in advance, reducing the demand of system to ROM.
[accompanying drawing explanation]
Fig. 1 is the process flow diagram according to code table generating method of the present invention;
Fig. 2 is the particular flow sheet according to 929 code table generating methods of the present invention;
Fig. 3 is another particular flow sheet according to 929 code table generating methods of the present invention.
[embodiment]
The invention provides a kind of code table generating method, this code table generating method directly can generate code table when needed, without the need to being stored in ROM by code table in advance, reduce the demand of system to ROM, and this code table generating method directly can be realized by hardware logic.
As shown in Figure 1, Fig. 1 is the process flow diagram according to code table generating method of the present invention.In code table generating method of the present invention, first generate the first Serial No. and the second Serial No., utilize the second Serial No. generated codeword, and utilize the first Serial No. to generate sign character.Subsequently, validity judgement is carried out to sign character, and determine thus to judge legal sign character and the corresponding relation of code word.Pass through said method, the corresponding relation of distinct symbols character and code word can be obtained by changing the first Serial No. and the second Serial No. respectively, after the powering on of system or when needing, automatically can generating code table thus, without the need to prestoring code table, reducing the demand of system to ROM.
As shown in Figure 2, Fig. 2 describes the method being generated 929 code tables by said method in detail for PDF417 bar code.Specifically, for 0 bunch of code table, first generate the first Serial No. and the second Serial No..In the present embodiment, the senary number M=y of five is generated
1y
2y
3y
4y
5as the first Serial No., generate the decimal number N of three as the second Serial No., and M is set to 00000, N is arranged to 000, i.e. y
1, y
2, y
3, y
4, y
5be respectively 0.In the present embodiment, N is directly as code word.
Subsequently, bunch number formula is utilized: (y
0-y
1+ y
4-y
5) mod 9=0 calculates y
0.Calculating y
0after, can further to y
0carry out validity judgement, if y
0legal, then enter next step, if y
0illegal, then M is added 1, and re-use bunch y that number formulae discovery is new
0.Specifically, to y
0carrying out validity judgement is judge y
0whether be less than or equal to 5 and be more than or equal to 0, if y
0be less than or equal to 5 and be more than or equal to 0, then y
0legal, otherwise, y
0illegal.
Calculating y
0after, utilizing sum formula: (y
0+ y
2+ y
4+ y
6)=9 calculate y
6.Calculating y
6after, further to y
6carry out validity judgement, if y
6legal, then enter next step, if y
6illegal, then M is added 1, and return the re-using bunch y that number formulae discovery is new
0.To y
6carrying out validity judgement is judge y
6whether be less than or equal to 8 and be more than or equal to 0, if y
6be less than or equal to 8 and be more than or equal to 0, then y
6legal, otherwise, y
6illegal.
Calculating y
0and y
6after, utilize following formula: y
0=x
0+ x
1, y
1=x
1+ x
2, y
2=x
2+ x
3, y
3=x
3+ x
4, y
4=x
4+ x
5, y
5=x
5+ x
6and y
6=x
6+ x
7determine whether there is the x meeting above-mentioned formula
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7and probable value.In this case, one group of y
0, y
1, y
2, y
3, y
4, y
5and y
6corresponding may organize x more
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7.Now, x
1, x
2, x
3, x
4, x
5, x
6and x
7add the number of modules that the result after 1 is each bar sky.But, in order to store and convenience of calculation, in the present embodiment, select y
0y
1y
2y
3y
4y
5y
6as sign character.Certainly, those skilled in the art can expect directly utilizing x completely
1, x
2, x
3, x
4, x
5, x
6and x
7or add the result after 1 as sign character of the present invention.
After determining sign character, still need to carry out further validity judgement to sign character.Such as, in 929 code tables, the number of modules of each bar sky is all less than or equal to 6, therefore carries out validity judgement to sign character and also comprises and judge x
1, x
2, x
3, x
4, x
5, x
6and x
7whether be less than or equal to 5 and be more than or equal to 0, if wherein one group of x
1, x
2, x
3, x
4, x
5, x
6and x
7all be less than or equal to 5 and be more than or equal to 0, then representing that this sign character is legal.Otherwise, then think that sign character is illegal.After judging that sign character is illegal, then M is added 1, and re-use bunch y that number formulae discovery is new
0, and repeat subsequent operation.
For 0 bunch of code table, after utilizing above-mentioned rule, also need to utilize exception list to do further judgement to whether sign character is legal.In the present embodiment, the multiple fiducial value of sequential storage in exception list.Further, when utilizing exception list to carry out validity judgement to sign character, the current fiducial value in N and exception list is compared.If N is identical with current fiducial value, think that sign character is illegal, now using the current fiducial value that next fiducial value in multiple fiducial value compared as next time, and re-use bunch y that number formulae discovery is new after M being added 1
0, and repeat subsequent operation.If N is not identical with current fiducial value, then think that sign character is legal, and keep current fiducial value constant, validity judgement should be carried out to follow-up sign character by front fiducial value to utilize.In the present embodiment, store the fiducial value corresponding with N in the exception list, but those skilled in the art can expect storing the fiducial value corresponding with M or sign character in the exception list completely.Now, then need M or sign character and current fiducial value to compare the legitimacy judging sign character.The effect of exception list is, according to the actual corresponding relation of sign character and code word, the exception that cannot be judged by above-mentioned rule is pre-stored within ROM.Because exception is only in a minimum part for code table, the demand to ROM greatly can be reduced thus.
After by above-mentioned judgement, then think and judge that legal sign character is corresponding with the code word representated by N.Further, in one embodiment, will judge that legal sign character sequential storage is in storer (such as, RAM), to determine the corresponding relation of sign character and code word according to sign character and memory location thereof when follow-up tabling look-up.Certainly, also can not store sign character, but directly utilize the corresponding relation of aforesaid way determination sign character and code word when needs are tabled look-up.
After the corresponding relation determining sign character and code word, judge whether N equals 928 further, if N is less than or equal to 928, N and M is added 1 respectively, and re-use bunch y that number formulae discovery is new
0, and repeat subsequent operation, to confirm the corresponding relation of new sign character and code word.If N equals 928, then show the corresponding relation having confirmed whole 929 sign characters and code word in 929 code tables, and then code table generating method terminates.
Certainly, also initialization can be carried out according to several the discrete sign characters prestored and code word corresponding relation to M and N, and when N value meets predetermined value and stop code table generating method.Now, this several discrete sign character and code word corresponding relation form multiple section, the code table generating method of the present embodiment is not then the corresponding relation of whole 929 sign characters and code word in calculating 929 code table, but the corresponding relation of the sign character calculated in certain section of 929 code tables and code word.When reality uses, the sign character that can obtain according to scanning in advance determines the section at this sign character place, and recycling said method generates the code table in this section, determines the code word corresponding to this sign character thus.Thus, operation time can be saved further.
By code table generating method of the present invention, directly generate code table when hardware logic preferably can be utilized in system electrification or need, without the need to storing in ROM by code table in advance, reducing the demand to ROM, reducing the size of hardware decode chip.
As shown in Figure 3, Fig. 3 is the process flow diagram of the code table generating method for 3 and 6 bunches of code tables.The difference of the embodiment shown in the present embodiment and Fig. 2 is only: at initialization step, generates the octal numeral M=y of five
1y
2y
3y
4y
5as the first Serial No., utilize (y
0-y
1+ y
4-y
5) mod 9=3 or 6 determines y
0, and at y
0validity judgement time be by y
0whether be less than or equal to 7 and be more than or equal to 0 as criterion.In addition, when the validity judgement of sign character, further judgement is done without using exception list.
In the above-described embodiments, only to invention has been exemplary description, but those skilled in the art can carry out various amendment to the present invention without departing from the spirit and scope of the present invention after reading present patent application.
Claims (22)
1. a generation method for the code table of bar code decoding process use, it is characterized in that, described method comprises:
Generate decoding code table, the step of described generation decoding code table comprises:
A1. the first Serial No. and the second Serial No. is generated;
A2. described second Serial No. generated codeword is utilized;
A3. utilize described first Serial No. to generate sign character, and validity judgement is carried out to described sign character;
A4. determine to judge legal described sign character and the corresponding relation of described code word;
Wherein, describedly determine that the step of the corresponding relation judging legal described sign character and described code word is specially: sign character is not stored, but the corresponding relation of aforesaid way determination sign character and code word is directly utilized when needs are tabled look-up, maybe will judge that legal sign character sequential storage is in storer, to determine the corresponding relation of sign character and code word according to sign character and memory location thereof when follow-up tabling look-up, directly code table is generated, without the need to being stored in ROM by code table in advance when utilizing hardware logic in system electrification thus or need.
2. method according to claim 1, is characterized in that, described code table is 929 code tables of PDF417 bar code.
3. method according to claim 2, is characterized in that, described step a1 comprises: the senary number M=y generating five
1y
2y
3y
4y
5as described first Serial No., generate the decimal number N of three as described second Serial No., and initialization is carried out to M and N.
4. method according to claim 3, is characterized in that, comprises at described step a2: using N directly as described code word.
5. method according to claim 4, is characterized in that, described step a3 comprises:
C1. bunch number formula is utilized: (y
0-y
1+ y
4-y
5) mod 9=0 calculates y
0;
C2. sum formula is utilized: (y
0+ y
2+ y
4+ y
6)=9 calculate y
6;
C3. following formula is utilized: y
0=x
0+ x
1, y
1=x
1+ x
2, y
2=x
2+ x
3, y
3=x
3+ x
4, y
4=x
4+ x
5, y
5=x
5+ x
6and y
6=x
6+ x
7determine x
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7.
6. method according to claim 5, is characterized in that, described step c1 comprises further to y
0carry out validity judgement, if y
0illegal, then M is added 1, and repeating said steps c1.
7. method according to claim 6, is characterized in that, in described step c1, to y
0carry out validity judgement to comprise and judge y
0whether be less than or equal to 5 and be more than or equal to 0, if y
0be less than or equal to 5 and be more than or equal to 0, then y
0legal, otherwise, y
0illegal.
8. method according to claim 7, is characterized in that, described step c2 comprises further to y
6carry out validity judgement, if y
6illegal, then M is added 1, and return described step c1.
9. method according to claim 8, is characterized in that, in described step c2, to y
6carry out validity judgement to comprise and judge y
6whether be less than or equal to 8 and be more than or equal to 0, if y
6be less than or equal to 8 and be more than or equal to 0, then y
6legal, otherwise, y
6illegal.
10. method according to claim 9, is characterized in that, in described step a3, with y
0y
1y
2y
3y
4y
5y
6as described sign character.
11. methods according to claim 10, is characterized in that, described step a3 comprises further:
C4. x is judged
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7whether be less than or equal to 5 and be more than or equal to 0, if there is one group of x
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7all be less than or equal to 5 and be more than or equal to 0, then described sign character is legal, otherwise described sign character is illegal.
12. methods according to claim 11, is characterized in that, described step a3 comprises further:
C5. judge whether described sign character corresponds to the current fiducial value in exception list, and in described exception list, sequential storage has multiple fiducial values corresponding with described sign character, carries out validity judgement for described sign character.
13. methods according to claim 12, it is characterized in that, in described step c5, current fiducial value in multiple fiducial values of sequential storage in N and described exception list is compared, if N is identical with current fiducial value, described sign character is illegal, and using the current fiducial value that next fiducial value in described multiple fiducial value compared as next time, if N is not identical with current fiducial value, described sign character is legal, and keep current fiducial value constant.
14. methods according to claim 2, is characterized in that, described step a1 comprises: the octal numeral M=y generating five
1y
2y
3y
4y
5as described first Serial No., generate the decimal number N of three as described second Serial No., and initialization carried out to M and N,
15. methods according to claim 14, is characterized in that, described step a3 comprises:
C1. bunch number formula is utilized: (y
0-y
1+ y
4-y
5) mod 9=3 or 6 calculating y
0;
C2. sum formula (y is utilized
0+ y
2+ y
4+ y
6)=9 calculate y
6;
C3. following formula is utilized: y
0=x
0+ x
1, y
1=x
1+ x
2, y
2=x
2+ x
3, y
3=x
3+ x
4, y
4=x
4+ x
5, y
5=x
5+ x
6and y
6=x
6+ x
7determine x
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7.
16. methods according to claim 15, is characterized in that, described step c1 comprises further to y
0carry out validity judgement, if y
0illegal, then M is added 1, and repeating said steps c1.
17. methods according to claim 16, is characterized in that, in described step c1, to y
0carry out validity judgement to comprise and judge y
0whether be less than or equal to 7 and be more than or equal to 0, if y
0be less than or equal to 7 and be more than or equal to 0, then y
0legal, otherwise, y
0illegal.
18. methods according to claim 17, is characterized in that, described step c2 comprises further and judges y
6legitimacy, if y
6illegal, then M is added 1, and return described step c1.
19. methods according to claim 18, is characterized in that, in described step c2, to y
6carry out validity judgement to comprise and judge y
6whether be less than or equal to 8 and be more than or equal to 0, if y
6be less than or equal to 8 and be more than or equal to 0, then y
6legal, otherwise, y
6illegal.
20. methods according to claim 19, is characterized in that, comprise at described step a2: using N directly as described code word, in described step a3, with y
0y
1y
2y
3y
4y
5y
6as described sign character.
21. methods according to claim 20, is characterized in that, described step a3 comprises further:
C4. x is judged
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7whether be less than or equal to 5 and be more than or equal to 0, if there is one group of x
0, x
1, x
2, x
3, x
4, x
5, x
6and x
7all be less than or equal to 5 and be more than or equal to 0, then described sign character is legal, otherwise described sign character is illegal.
22. methods according to claim 5 or 15, it is characterized in that, described code table generating method comprises further:
E. judge whether N equals predetermined value, if N equals predetermined value, then terminate described code table generating method, otherwise, N and M is added 1 respectively and returns step c1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010188986.1A CN101872412B (en) | 2010-06-01 | 2010-06-01 | The generation method of the code table that a kind of bar code decoding process uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010188986.1A CN101872412B (en) | 2010-06-01 | 2010-06-01 | The generation method of the code table that a kind of bar code decoding process uses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101872412A CN101872412A (en) | 2010-10-27 |
| CN101872412B true CN101872412B (en) | 2015-10-07 |
Family
ID=42997267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010188986.1A Active CN101872412B (en) | 2010-06-01 | 2010-06-01 | The generation method of the code table that a kind of bar code decoding process uses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101872412B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI674558B (en) * | 2018-06-12 | 2019-10-11 | 財團法人工業技術研究院 | Device and method for processing numercial array data, and color table generation method thereof |
| CN108809779A (en) * | 2018-06-19 | 2018-11-13 | 北京上中元科技有限公司 | A kind of method of fresh-air purifying equipment automatic identification/verification |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285986A (en) * | 1998-01-07 | 2001-02-28 | 西门子公司 | Method and device for coading, decoding and transmitting information, using source-controlled channel decoding |
| CN1599981A (en) * | 2001-12-06 | 2005-03-23 | 皇家飞利浦电子股份有限公司 | Simple decoding method and apparatus |
| CN101093998A (en) * | 2007-08-15 | 2007-12-26 | 威盛电子股份有限公司 | Decoding method and device |
| CN101534166A (en) * | 2008-03-10 | 2009-09-16 | 上海明波通信技术有限公司 | Quasi-cyclic low-density parity-check code decoder and decoding method |
-
2010
- 2010-06-01 CN CN201010188986.1A patent/CN101872412B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285986A (en) * | 1998-01-07 | 2001-02-28 | 西门子公司 | Method and device for coading, decoding and transmitting information, using source-controlled channel decoding |
| CN1599981A (en) * | 2001-12-06 | 2005-03-23 | 皇家飞利浦电子股份有限公司 | Simple decoding method and apparatus |
| CN101093998A (en) * | 2007-08-15 | 2007-12-26 | 威盛电子股份有限公司 | Decoding method and device |
| CN101534166A (en) * | 2008-03-10 | 2009-09-16 | 上海明波通信技术有限公司 | Quasi-cyclic low-density parity-check code decoder and decoding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101872412A (en) | 2010-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103400174B (en) | The coded method of a kind of Quick Response Code, coding/decoding method and system | |
| Sutheebanjard et al. | QR-code generator | |
| EP2309426B1 (en) | Two-dimensional bar code encoding method, decoding method and device, terminal | |
| CN102054185A (en) | Two-dimension code generation method, user mobile terminal and mobile communication system | |
| CN102592160A (en) | Character two-dimension code encoding and decoding method for short message | |
| CN103279544A (en) | Method and device for storing and inquiring tree structure data in relational database | |
| CN106940721A (en) | A kind of data processing method and system of self-defined choice box | |
| CN109146382A (en) | E-commerce order distribution method and Related product | |
| CN101872412B (en) | The generation method of the code table that a kind of bar code decoding process uses | |
| CN109525364A (en) | A kind of telecommunication data protocol generalization based on XML describes method | |
| CN111539502A (en) | Anti-counterfeiting two-dimensional code generation method and device, server and storage medium | |
| CN113539370A (en) | Encoding method, decoding method, device, terminal device and readable storage medium | |
| CN102339277A (en) | Method and system for converting text content into picture content | |
| CN102034078B (en) | Coding method for image barcode identification | |
| CN101207467A (en) | Generation of cyclic redundancy check code as well as method and apparatus for sending and testing data sequence | |
| CN109886711A (en) | A kind of bar code coding method and device | |
| CN101303742B (en) | Microminiature Hanxin code and method for generating symbol thereof | |
| CN102568608B (en) | Improved method for strengthening QR (Quick Response) code error correcting capability | |
| CN201936320U (en) | Code table generator | |
| CN101854180A (en) | Bar code error correcting and decoding device | |
| CN107392518A (en) | A kind of Supermarket Management System | |
| CN108491914B (en) | Bar code generating and identifying method and device, printed matter and electronic equipment | |
| CN101833645A (en) | Bar code decoding method based on code word combination | |
| CN106874979B (en) | Bar code processing, displaying and reading method and device | |
| Rong et al. | Coding principle and implementation of two-dimensional PDF417 bar code |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 350015 No. 1 Rujiangxi Road, Mawei District, Fuzhou City, Fujian Province Patentee after: New Continent Digital Technology Co., Ltd. Address before: 350015 New Continental Science Park No. 1 Rujiangxi Road, Mawei District, Fuzhou City, Fujian Province Patentee before: Fujian Newland Computer Co., Ltd. |
|
| CP03 | Change of name, title or address |