CN103679763B - The generation method and read method of a kind of modulation code and application - Google Patents
The generation method and read method of a kind of modulation code and application Download PDFInfo
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Abstract
The present invention relates to a kind of coding mode informations, such as bar code and two dimensional code or square matrix code, especially a kind of modulation code and method and application.It is characterized in that: modulation code is made of the modulated pixels or modulated pixels group of different frequency, a modulated pixels or a modulated pixels group are a modulation unit, and the permutation and combination expressing information of the modulation unit, the modulation unit is the information word of information.Beneficial effect is: proposing the corresponding relationship of a kind of " information-modulation dot matrix ", the methods and applications that information transmission is carried out using display device and photographic device are provided, such as traditional two dimensional code identification acquisition ID, network address, code etc. is applied, can also further carry out file transmission.Since modulation code of the present invention is to determine information word with image pixel " flashing " frequency, so there can be " transparent " one-dimensional or effect of two dimensional code, modulation code can be thus superimposed upon to display on other images (traditional graph code must individually be shown).
Description
Technical field
The present invention relates to a kind of coding mode informations, such as bar code and two dimensional code or square matrix code, especially a kind of modulation code
And method and application.
Background technique
Encoding of graphs converts pattern arrangement, i.e. information graphic by the rule of setting for the information of certain capacity.It is existing
There are many some encoding of graphs, such as: mature barcode encoding, concentric garden encoding of graphs, C-shaped encoding of graphs, special-shaped figure are compiled
Code etc..
The graphic designs of encoding of graphs require to be that identification is reliable, and the coding requirement of encoding of graphs is that have error correcting capability and high letter
It ceases density (or variable information density), current existing encoding of graphs design method has one-dimensional barcode, two-dimentional bar shaped, i.e., existing
Barcode design figure, for example typical Reed-Solomon two-dimensional bar error correction algorithm of the coding mode of encoding of graphs, so
The figure and algorithm that the present invention uses can directly apply existing two dimensional code coding and decoding technology.
Bar code has one-dimensional bar code, two-dimensional bar, compound bar code, color bar code at present.Color bar code is by color
Encoded bar code information is added in multimedia message, can increase bar code information capacity.
Existing two dimensional code has stack two dimensional code such as PDF417, Code49, Code16K, Ultracode etc., matrix
Formula two dimensional code such as QR code, Code One, Aztec, Data Matrix, Maxicode, LP Code, silicon sense grid matrix (GM), silicon
Feel close matrix (CM), Chinese letter co.
Existing bar code, two dimensional code are using figure as coding result, are the corresponding relationships of " information-figure ", the present invention
It is proposed the corresponding relationship of a kind of " information-modulation dot matrix ", it may also be necessary to corresponding with " modulation dot matrix " and " figure ", " figure "
Corresponding " information ", the i.e. corresponding relationship of " information-figure-modulation dot matrix figure ".
Summary of the invention
The purpose of the present invention is to propose to a kind of coding staffs of the corresponding relationship of " information-modulation dot matrix " shown based on screen
Formula determines information word with " flashing " frequency of image pixel, with the permutation and combination expressing information of information word；Or, with " modulation point
Battle array " and " figure " are corresponding, " figure " correspondence " information ", the i.e. corresponding relationship of " information-figure-modulation dot matrix figure ", modulation
The graphics of dot matrix are the coding and decoding application of traditional bar code or two dimensional code.
The technical scheme is that
A kind of modulation code, it is characterized in that: modulation code is made of the modulated pixels or modulated pixels group of different frequency, a tune
Pixel processed or a modulated pixels group are a modulation unit, the permutation and combination expressing information of the modulation unit, the modulation
Unit is the information word of information.
A kind of modulation code, it is characterized in that: at least one modulation unit is the position detection unit of modulation code.
A kind of modulation code, it is characterized in that: modulation unit display color is different, to combine bigger information content.
A kind of modulation code, it is characterized in that: modulation unit forms one-dimensional modulation code.
A kind of modulation code, it is characterized in that: modulation unit forms two-dimensional modulation code.
A kind of modulation code, it is characterized in that: modulation unit forms matrix, a modulation unit is the matrix list of matrix
Member, each matrix unit express an information word.
A kind of modulation code, it is characterized in that: the matrix unit of four Angle Positions of matrix is there are three matrix unit
Position detection unit.
A kind of modulation code, it is characterized in that: modulation code is frame modulation code, the frame modulation code is enclosed in content
Frame periphery, or enclosed in modulation code carrier frame.
A kind of modulation code further includes error correction information unit i.e. error correction information word.
A kind of modulation code further includes positioning unit.
A kind of modulation code further includes correction unit.
A kind of modulation code further includes the format information of coding method.
A kind of modulation code further includes the version information of coding method.
A kind of modulation code forms figure by modulated pixels group and compiles it is characterized in that: the modulation code is encoding of graphs
The figure of code, i.e. modulation pattern code.
Above-mentioned modulated pixels may be a luminous point, such as LED screen, and a LED is exactly a pixel, and pixel can be with
As a modulation unit；Display screen higher for physical resolution, such as LCD liquid crystal display, CRT screen, in order to meet modulation
Yardstick cun and modulation unit brightness, by modulated pixels, group forms modulation unit；If not considering encoding of graphs, the shape of modulation unit
Shape can be arbitrary shape, such as round, rectangular, for simple description, and compared with prioritization scheme, specific embodiments of the present invention
It is middle to use matrix form, i.e., one-dimensional matrix modulation code or two-dimensional matrix modulation code, matrix unit, that is, modulation unit of matrix.
In view of encoding of graphs, the figure of encoding of graphs, i.e. modulation pattern code are formed by modulated pixels, principle is by modulating
Pixel and its figure of formation carry out encoding operation jointly and obtain modulation pattern code, and modulation pattern code passes through frequency demodulation and figure
Identification is decoded operation and obtains information.
The modulation code or modulation pattern code can be applied to: information transmission, file transmission, information flow, information pass
Send such as text information transmission, ID transmission, information on the code transmission, network address transmission, file transmission such as text document transmission, image text
Part transmission, audio-video document transmission etc..
A kind of method that modulation code generates, step are, comprising: (1) establish modulation code matrix, n system n*n matrix n tune
The matrix of cell colors processed；(2) position sensing matrix unit is established, determines the modulating frequency of position sensing matrix unit；(3) square
Battle array coding, i.e., encode information, by the permutation and combination expressing information of the matrix unit of different modulating frequency, matrix unit
Frequency is according to scheduled modulation unit frequency meter；(4) modulation code comprising information is obtained, and shows at least one on a display screen
Recognition cycle T time.
A kind of method that modulation code is read, step are, comprising: (1) at least one recognition cycle T persistently obtains modulation
Code；(2) identification position sensing matrix unit determines modulation code matrix；(3) matrix unit modulating frequency demodulation of frequency discriminator passes through mirror
Frequency demodulation obtains the flicker frequency of each matrix unit；(4) modulation code matrix decodes, and obtains according to scheduled modulation unit frequency meter
Matrix information word is taken, the information of expression is obtained by information word.
A kind of information transferring method of the identification based on modulation code or modulation pattern code, step are, comprising: (1) information
Transmitting terminal extracts all or part of information source, i.e. information translator unit；(2) the information translator unit is used into encryption algorithm
It is converted into modulation code or modulation pattern code；(3) modulation code or modulation pattern code are successively shown, a modulation code or
Modulation pattern code corresponds to an information passing unit；(4) information receiving end obtains modulation code or modulation pattern by photographic device
The flashing image of code；(5) flashing for the modulation code or modulation pattern code that will acquire using decoding algorithm corresponding with encryption algorithm
Image conversion is reduced to the information translator unit of information transmitting terminal transmission；(6) step 1 ~ 5 are repeated, and will be received all
Information passing unit merges, until information source transmission is completed.
The beneficial effects of the present invention are: proposing the corresponding relationship of a kind of " information-modulation dot matrix ", it may also be necessary to use
" modulation dot matrix " and " figure " are corresponding, " figure " correspondence " information ", i.e. the corresponding of " information-figure-modulation dot matrix figure " is closed
System provides the methods and applications that information transmission is carried out using display device and photographic device, as traditional two dimensional code identification obtains
It takes ID, network address, code etc. is applied, can also further carry out file transmission.Since modulation code of the present invention is with image slices
" flashing " frequency of element determines information word, it is possible to have " transparent " one-dimensional or effect of two dimensional code, thus can will adjust
Code processed is superimposed upon display on other images (traditional graph code must individually be shown).Additionally, due to modulation code of the present invention be with
" flashing " frequency of image pixel determines information word, may be implemented in the case where not considering " figure " photographic device it is farther away from
From acquisition identification, to resolution of photographic device require it is lower.
Detailed description of the invention
Fig. 1 is one-dimensional modulation code schematic diagram and corresponding informance word (for binary system).
Fig. 2 is the embodiment that one-dimensional modulation code uses position sensing figure.
Fig. 3 is two-dimensional modulation code schematic diagram and corresponding informance word (for binary system 4*4 matrix).
Fig. 4 is one-dimensional modulation code schematic diagram and corresponding informance word (for octal system).
Fig. 5 is two-dimensional modulation code schematic diagram and corresponding informance word (for octal system 10*10 matrix).
Fig. 6 is frame modulation code schematic diagram (for octal system).
Fig. 7 is two-dimensional matrix modulation code product process figure.
Fig. 8 is that two-dimensional matrix modulation code reads flow chart.
Fig. 9 is two-dimensional matrix modulation code decoding process figure (for binary system 4*4 matrix).
Figure 10 is modulation code pixel " flashing " signal graph.
Figure 11 is modulated pixels demodulation principle figure.
Figure 12 is modulation pattern code schematic diagram (for 10*10 matrix).
Figure 13 is the method that the present invention transmits information using modulation code or modulation pattern code.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is one-dimensional modulation code schematic diagram and corresponding informance word (for binary system).In figure, 101 be one-dimensional modulation code
The information word of word, i.e. modulation code expression, information word are as follows: L, 0,1, L；102 be one-dimensional modulation code, by the modulation unit of different frequency
(Flash cell) composition, setpoint frequency is successively here are as follows: 50Hz, 20Hz, 30Hz, 50Hz, modulation unit label in figure are as follows: 50,
20,30,50；103 be display screen, such as mobile phone display screen, computer display screen, television set, outdoor large screen；104 be display screen
Middle blank spot has maximum scan frequency i.e. highest frame frequency for CRT display screen, and generally 60Hz, there is LCD display at present
Highest response frequency, that is, highest frame frequency, general at present is also 60Hz, is marked in the present invention with 60.One-dimensional modulation code 102 is being shown
It is shown on screen 103 and the word of the corresponding one-dimensional modulation code of one-dimensional modulation code 102 is shown in 101, L indicates position sensing list in 101
Member can identify and position the one-dimensional modulation code by two position detection units of head and the tail, between two L position detection units
It is information binary word 0,1, the corresponding relationship of the word of one-dimensional modulation code 102 and one-dimensional modulation code is: 50(50Hz) corresponding L, 20
(20Hz) corresponds to 0,30(30Hz) corresponding 1.Modulating frequency involved in Fig. 1 embodiment (flicker frequency) allows for current display
Screen highest refreshing frequency be 60Hz, consider further that the demodulation of frequency discriminator requirement of flicker frequency, select 50Hz, 20Hz, 30Hz, 50Hz for
Example, the present invention are not excluded for the selection of other frequencies, and in particular with the continuous improvement of display screen refreshing frequency, frequency selected element can be with
More, more frequency points can be accommodated.
Further, one-dimensional modulation code is encoded to ASCII character.
In addition, the modulation unit of one-dimensional modulation code can also use different colours, such as three primary colors (red, yellow, blue), in this way
The information of larger capacity can be worked out, label 20,30 modulation units have following arrangement group to example in 102 one-dimensional modulation codes as shown in figure 1
Close: 20Hz is red, 20Hz is yellow, 20Hz is blue, 30Hz is red, 30Hz is yellow, 30Hz is blue.
Fig. 2 is the embodiment that one-dimensional modulation code uses position sensing figure.By two position sensing lists in Fig. 1 in Fig. 2
The 50Hz modulation unit (Flash cell) of member replaces with position sensing figure, and 201 be position sensing figure, forms a kind of band in this way
The one-dimensional modulation code of position sensing figure.
Fig. 3 is two-dimensional modulation code schematic diagram and corresponding informance word (for binary system 4*4 matrix).In Fig. 3, using matrix side
Formula illustrates that 301 be two-dimensional modulation code information word table, and 302 be corresponding two-dimensional modulation code by taking binary system as an example, has 3 positions to visit
Three angles that unit is located at two-dimensional modulation code are surveyed, remaining position is information word.Two-dimensional modulation code shown in Fig. 3 is due to using matrix side
Formula can also be called two-dimensional matrix modulation code.
Further, two-dimensional modulation code is encoded to ASCII character.
In addition, the modulation unit of two-dimensional modulation code can also use different colours, such as three primary colors (red, yellow, blue), in this way
The information of larger capacity can be worked out, such as the modulation unit of label 20,30 has following arrangement in 302 two-dimensional modulation codes in Fig. 3
Combination: 20Hz is red, 20Hz is yellow, 20Hz is blue, 30Hz is red, 30Hz is yellow, 30Hz is blue.
The two-dimensional modulation code further includes error correction information unit i.e. error correction information word.
The two-dimensional modulation code further includes positioning unit.
The two-dimensional modulation code further includes correction unit.
The two-dimensional modulation code further includes the format information of coding method.
The two-dimensional modulation code further includes the version information for including coding method.
Due to two-dimensional modulation code be information is transmitted with the flashing of modulation unit, so two-dimensional modulation code can be superimposed upon it is other
The identification shown on image without influencing modulation code.
Fig. 4 is one-dimensional modulation code schematic diagram and corresponding informance word (for octal system).401 be octal system one-dimensional modulation code
Word, the L of head and the tail are position detection unit, and average information word is octal system: 0,1,2,3,4,5,6,7；402 be the one-dimensional tune of octal system
Code processed, L setpoint frequency are 50Hz, are labeled as 50, octal number 0,1,2,3,4,5,6,7 respectively correspond label 5,10,15,20,
25,30,35,40 modulation unit, corresponding modulating frequency are as follows: 5 Hz, 10 Hz, 15 Hz, 20 Hz, 25 Hz, 30 Hz, 35
Hz,40 Hz.Using same method, select different frequencies that any ary modulation code, such as 10 systems, n system may be implemented
Deng.
Further, n system one-dimensional modulation code is encoded to ASCII character.
In addition, the modulation unit of modulation code can also use different colours, such as three primary colors (red, yellow, blue) in this way can be with
The information of larger capacity is worked out, such as label 5,10,15,20,25,30,35,40 in 402 octal system one-dimensional modulation codes in Fig. 4
Modulation unit has following permutation and combination: 5Hz is red, 5Hz is yellow, 5Hz is blue, 10Hz is red, 10Hz is yellow, 10Hz is blue, 15Hz is red, 15Hz is yellow,
15Hz is blue, 20Hz is red, 20Hz is yellow, 20Hz is blue, 25Hz is red, 25Hz is yellow, 25Hz is blue, 30Hz is red, 30Hz is yellow, 30Hz is blue, 35Hz is red,
35Hz is yellow, 35Hz is blue, 40Hz is red, 40Hz is yellow, 40Hz is blue.
Fig. 5 is two-dimensional modulation code schematic diagram and corresponding informance word (for octal system 10*10 matrix).In Fig. 5,501 be two
Modulation code information word table is tieed up, 502 be corresponding two-dimensional modulation code, there are 3 position detection units to be located at three of two-dimensional modulation code
Angle, remaining position are information words, and other omissions do not mark in addition to the first row example in Fig. 5.
Further, two-dimensional modulation code is encoded to ASCII character.
In addition, the modulation unit of two-dimensional modulation code can also use different colours, such as three primary colors (red, yellow, blue), in this way
The information of larger capacity can be worked out, for example, in Fig. 5 in 502 two-dimensional modulation codes label 5,10,15,20,25,30,35,40 tune
Unit processed has following permutation and combination: 5Hz is red, 5Hz is yellow, 5Hz is blue, 10Hz is red, 10Hz is yellow, 10Hz is blue, 15Hz is red, 15Hz is yellow,
15Hz is blue, 20Hz is red, 20Hz is yellow, 20Hz is blue, 25Hz is red, 25Hz is yellow, 25Hz is blue, 30Hz is red, 30Hz is yellow, 30Hz is blue, 35Hz is red,
35Hz is yellow, 35Hz is blue, 40Hz is red, 40Hz is yellow, 40Hz is blue.
Fig. 6 is frame modulation code schematic diagram (for octal system).In Fig. 6,601 be frame two-dimensional modulation code, there is 3 positions
Probe unit is located at three angles of frame two-dimensional modulation code, remaining position is information word, in Fig. 6 in addition to the first row example other provinces
It does not mark slightly.
Further, frame two-dimensional modulation code is encoded to ASCII character.
In addition, the modulation unit of frame two-dimensional modulation code can also use different colours, such as three primary colors (red, yellow, blue),
The information of larger capacity can be worked out in this way, for example, label 5 in 601 frame two-dimensional modulation codes in Fig. 6,10,15,20,25,30,
35,40 modulation unit has following permutation and combination: 5Hz is red, 5Hz is yellow, 5Hz is blue, 10Hz is red, 10Hz is yellow, 10Hz is blue, 15Hz is red,
15Hz is yellow, 15Hz is blue, 20Hz is red, 20Hz is yellow, 20Hz is blue, 25Hz is red, 25Hz is yellow, 25Hz is blue, 30Hz is red, 30Hz is yellow, 30Hz is blue,
35Hz is red, 35Hz is yellow, 35Hz is blue, 40Hz is red, 40Hz is yellow, 40Hz is blue.
In Fig. 6, frame two-dimensional modulation code 601 is shown in display screen 103, and 602 be the encirclement of frame two-dimensional modulation code 601
Content, content such as: image, text, software interface surround contents in order to as far as possible more, and frame two-dimensional modulation code can be with
It is close to the inside casing of display screen 103, the beneficial effect of frame two-dimensional modulation code is: 1, can be by frame for software interface
The outline border of software interface is arranged in two-dimensional modulation code, and beneficial effect is that user closes it is unnecessary to show conventional two-dimensional code
Application software current interface.2, such as include addition friend information in the outline border activation display of the chat interface of mobile telephone instant communication
Outline border two-dimensional modulation code, need not thus close chat interface and in addition show the conventional two-dimensional comprising addition friend information
Code.3, biography is in addition shown for need not also close application software current interface to the application software that code matches using conventional two-dimensional code
System two dimensional code, but the activation of frame two-dimensional modulation code is directly shown to the interface frame in application software.4, for social software,
Such as microblogging, good friend is added through the conventional two-dimensional code frequently with scanning other side, activates display bezel in the interface frame of social software
The social software current interface that two-dimensional modulation code need not just close directly scans frame two-dimensional modulation code addition good friend.5, for wide
It accuses, using frame two-dimensional modulation code, since information coding is the flashing of modulation unit, rather than figure is identified, it is possible to
Farther distance is identified, such as uses the outdoor screen advertisement of conventional two-dimensional code at present, shooting at close range is needed to read, such as existing
The publicity of TV programme conventional two-dimensional code be also required to shooting at close range reading, and use frame modulation code of the present invention then can be with
Wide-long shot is read.
In summary embodiment, the form of modulation code may is that n system n*n matrix, n system n*n matrix n modulation are single
First color.
Fig. 7 is two-dimensional matrix modulation code product process figure.Its step is, comprising: (1) establishes modulation code matrix, n system n*
The matrix of n matrix n modulation unit color；(2) position sensing matrix unit is established, determines the modulation frequency of position sensing matrix unit
Rate, as the modulating frequency of position sensing matrix unit can be set to 50Hz；(3) matrix coder encodes information, by
The permutation and combination expressing information of the matrix unit of different modulating frequency, the frequency of matrix unit is according to scheduled modulation unit frequency
Table, modulation unit frequency meter such as: binary system: (20Hz corresponding 0), (30Hz corresponding 1), octal system: (5Hz corresponding 0), (10Hz couples
Answer 1), (15Hz corresponding 2), (20Hz corresponding 3), (25Hz corresponding 4), (30Hz corresponding 5), (35Hz corresponding 6), (40Hz corresponding 7)；
(4) modulation code comprising information is obtained, and shows at least one recognition cycle T time on a display screen.
Fig. 8 is that two-dimensional matrix modulation code reads flow chart.Its step is, comprising: (1) durations T obtains modulation code, i.e.,
At least one recognition cycle T persistently obtains modulation code；(2) identification position sensing matrix unit determines modulation code matrix, that is, passes through
Three position sensing matrix units that identification is located at two-dimensional matrix modulation code determine the two-dimensional matrix modulation code；(3) matrix unit
Modulating frequency demodulation of frequency discriminator obtains the flicker frequency of each matrix unit by demodulation of frequency discriminator；(4) modulation code matrix decodes,
Matrix information word is obtained according to scheduled modulation unit frequency meter, the information of expression is obtained by information word.
Fig. 9 is two-dimensional matrix modulation code decoding process figure (for binary system 4*4 matrix).With two-dimensional modulation code shown in Fig. 3
And for corresponding informance word, information word, that is, matrix unit character code, modulation unit frequency meter is with 50(50Hz) correspond to L, 20(20Hz)
Corresponding 0,30(30Hz) it corresponds to for 1.Identification position sensing matrix unit first determines modulation code matrix, after determining matrix position
Further determine that matrix unit, obtain X1Y1, X1Y2, X1Y3, X1Y4, X2Y1, X2Y2, X2Y3, X2Y4, X3Y1, X3Y2,
X3Y3, X3Y4, X4Y1, X4Y2, X4Y3, X4Y4 matrix unit pixel level integral, pixel level integrated value represent primary flashing,
Flashing is carried out in a recognition cycle T to count the modulating frequency for obtaining matrix unit, modulating frequency and modulation unit frequency
Table carries out corresponding acquisition matrix unit character code, i.e. information word, carries out matrix decoding to information word and obtains information.
Figure 10 is modulation code pixel " flashing " signal graph.In Figure 10, by taking 20Hz, 30Hz as an example, 20Hz expresses 0,30Hz table
The signal graph for indicating 20Hz pixel up to 1,1001, f=20Hz=1/t1,1002 indicate the signal graph of 30Hz pixel, f=30Hz=1/
t2。
Figure 11 is modulated pixels demodulation principle figure.Modulated pixels demodulation includes independent pixel demodulation pixel group demodulation, as
Plain group demodulation, that is, pixel level integrated value demodulation, (information word 0), photographic device by taking the signal graph of 1001 pixels in Figure 10 as an example
Signal 1001 is sampled with 1101 frequencies after obtaining modulation code image, sampling frequency i.e. 1101 frequency is more than or equal to camera shooting
Device shoots the frame frequency of image, the 1102 picture element signal envelope diagrams obtained for sampled signal, and 1102 signals are obtained by low-pass filtering
The modulated signal 1103 of pixel is obtained, modulated signal 1103 passes through demodulation of frequency discriminator and obtains information word 0.
Figure 12 is modulation pattern code schematic diagram (for 10*10 matrix).1202 be modulation code, and 1201 be 1202 modulation codes
Information word, 1203 be the figure two dimensional codes that 1202 modulation codes indicate, the label of L corresponding modulating code 50 is 50Hz modulation unit in figure,
1204,0 corresponding modulating code 20 of the position sensing figure label for also corresponding to graphic code simultaneously is 20Hz modulation unit, while also being corresponded to
The blank cell of graphic code, 1 corresponding modulating code 30 label is 30Hz modulation unit, while also corresponding to the black unit of graphic code.
Corresponding modulation code is formed by information word first, modulation code is shown on a display screen, is demodulated after obtaining modulation code by photographic device
For figure two dimensional code, figure two dimensional code, that is, existing two dimensional code coding mode, the later period can be according to conventional two-dimensional code coding and decoding side
Formula processing.
Modulation pattern code transfer step: (1) information uses the establishment of conventional two-dimensional code for figure two dimensional code；(2) by figure two
Dimension code is shown in the form of modulation code；(3) photographic device obtains modulation code；(4) modulation code demodulation is reduced to X-Y scheme；(5)
Prime information is gone back using the demodulation of conventional two-dimensional code.
Figure 13 is the method that the present invention transmits information using modulation code or modulation pattern code.Present invention applicant's earlier application
" 2013102999947 information transferring method and application system based on encoding of graphs identification " discloses a kind of based on encoding of graphs
The information transferring method and application system of identification applied to the information transmission between at least two visual information machines and exchange,
It the steps include: that 1, information transmitting terminal extracts all or part of information source, i.e. information translator unit；2, by the information transport unit
Divide and information frame image i.e. graphical information is converted into using encryption algorithm；3, the information frame image is successively shown, one
The corresponding information passing unit of a information frame image；4, information receiving end obtains information frame image by camera；5, it uses
The information frame image conversion that decoding algorithm corresponding with encryption algorithm will acquire is reduced to the information of information transmitting terminal transmission
Translator unit, 6, repetition step 1 ~ 5, and received all information passing units are merged, until information source transmission is completed.
Referring to earlier application technical solution, using the encoding of graphs shape in modulation code or modulation pattern code replacement earlier application technical solution
At the information transferring method and application system of a kind of identification based on modulation code or modulation pattern code, Tu13Zhong, 1301 be information
Source, such as information flow or file, file such as text file, image file, audio-video document；1302 be coding unit, the coding
Unit refers to the coding unit of modulation code or modulation pattern code；1303 be series modulations code or modulation pattern code, each modulation code
Or at least continuously display recognition cycle of modulation pattern code, each modulation code or modulation pattern code indicate an information transmission
Unit；1304 be display device；1305 be photographic device；1306 be decoding unit, i.e. the decoding of modulation code or modulation pattern code
Unit；1307 information combination units, information combination unit pass the corresponding information of the series modulations code or modulation pattern code of acquisition
Unit is sent to merge；1308 receive information, that is, the reception information for the information source being finally completed.It the steps include: that (1) information is sent
Extract all or part of information source, i.e. information translator unit in end；(2) the information translator unit is converted using encryption algorithm
For modulation code or modulation pattern code；(3) modulation code or modulation pattern code are successively shown, a modulation code or modulation
Graphic code corresponds to an information passing unit；(4) information receiving end obtains modulation code or modulation pattern code by photographic device
Flash image；(5) the flashing image for the modulation code or modulation pattern code that will acquire using decoding algorithm corresponding with encryption algorithm
Conversion is reduced to the information translator unit of information transmitting terminal transmission；(6) step 1 ~ 5 are repeated, and by received all information
Transmission unit merges, until information source transmission is completed.
Modulating frequency, that is, flicker frequency selection of the modulation unit of modulation code of the present invention is not as the limitation present invention
Condition, such as: using the country of 50Hz Alternating Current Power Supply, it is contemplated that the modulated interferer of houselights can avoid the frequency of 50Hz
Rate point.
Claims (14)
1. a kind of generation method of modulation code, it is characterized in that: modulation code on the screen, modulation code by different frequency modulation
Pixel or modulated pixels group composition, a modulated pixels or a modulated pixels group are a modulation unit, the modulation unit
Permutation and combination expressing information, the modulation unit be information information word.
2. the generation method of a kind of modulation code according to claim 1 a, it is characterized in that: modulation unit, which is at least arranged, is
The position detection unit of modulation code.
3. a kind of generation method of modulation code according to claim 1, it is characterized in that: modulation unit display color is different,
To combine bigger information content.
4. the generation method of a kind of modulation code according to claim 1, it is characterized in that: forming one-dimensional modulation with modulation unit
Code.
5. the generation method of a kind of modulation code according to claim 1, it is characterized in that: forming two-dimensional modulation with modulation unit
Code.
6. a kind of generation method of modulation code according to claim 5, it is characterized in that: with modulation unit composition matrix, one
A modulation unit is the matrix unit of matrix, and each matrix unit expresses an information word.
7. the generation method of a kind of modulation code according to claim 6, it is characterized in that: the position at four angles of the matrix
Position detection unit is set as there are three matrix unit in four matrix units at place.
8. a kind of generation method of modulation code according to claim 5, it is characterized in that: the modulation code is encoding of graphs,
The figure of encoding of graphs, i.e. modulation pattern code are formed by modulated pixels group.
9. a kind of generation method of modulation code described according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, it is characterized in that:
Modulation code is frame modulation code, and the frame modulation code is enclosed in content frame periphery, or encloses in modulation code carrier frame.
10. a kind of generation method of modulation code, feature described according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8
Be: modulation code further include it is at least one of following or combination: error correction information unit i.e. error correction information word, positioning unit, correction unit,
The format information of coding method, coding method version information.
11. a kind of generation method of modulation code, feature described according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8
Be: the modulation code or modulation pattern code are applied to: information transmission, file transmission, information flow.
12. a kind of generation method of modulation code, step described according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8
It is, comprising: (1) establish modulation code matrix, n system n*n matrix or n system n*n matrix n kind modulation unit color；(2) it establishes
Position sensing matrix unit determines the modulating frequency of position sensing matrix unit；(3) matrix coder encodes information,
By the permutation and combination expressing information of the matrix unit of different modulating frequency, the frequency of matrix unit is according to scheduled modulation unit frequency
Rate table；(4) modulation code comprising information is obtained, and shows at least one recognition cycle T time on a display screen.
13. a kind of tune that the generation method of modulation code generates described according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8
The read method of code processed, step are, comprising: (1) at least one recognition cycle T persistently obtains modulation code；(2) identification position is visited
It surveys matrix unit and determines modulation code matrix；(3) matrix unit modulating frequency demodulation of frequency discriminator obtains each square by demodulation of frequency discriminator
The flicker frequency of array element；(4) modulation code matrix decodes, and obtains matrix information word according to scheduled modulation unit frequency meter, by
Information word obtains the information of expression.
14. a kind of tune that the generation method of modulation code generates described according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8
The application method of the information transmission of code processed, step are, comprising: (1) information transmitting terminal extracts all or part of information source, i.e.,
Information translator unit；(2) modulation code or modulation pattern code are converted using encryption algorithm by the information translator unit；(3) will
The modulation code or modulation pattern code are successively shown that a modulation code or the corresponding information transmission of modulation pattern code are single
Member；(4) information receiving end obtains the flashing image of modulation code or modulation pattern code by photographic device；(5) it uses and encodes and calculate
The flashing image conversion for the modulation code or modulation pattern code that the corresponding decoding algorithm of method will acquire is reduced to information transmitting terminal transmission
The information translator unit；(6) step (1) ~ (5) are repeated, and received all information passing units are merged, until described
Information source transmission is completed.
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| EP2573705A1 (en) * | 2011-09-26 | 2013-03-27 | Metrologic Instruments, Inc. | Method of and apparatus for managing and redeeming bar-coded coupons displayed from the light emitting display surfaces of information display devices |
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| EP2573705A1 (en) * | 2011-09-26 | 2013-03-27 | Metrologic Instruments, Inc. | Method of and apparatus for managing and redeeming bar-coded coupons displayed from the light emitting display surfaces of information display devices |
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