CN106778992B - Information decoding method based on circumferential arrangement step array - Google Patents

Information decoding method based on circumferential arrangement step array Download PDF

Info

Publication number
CN106778992B
CN106778992B CN201611032027.4A CN201611032027A CN106778992B CN 106778992 B CN106778992 B CN 106778992B CN 201611032027 A CN201611032027 A CN 201611032027A CN 106778992 B CN106778992 B CN 106778992B
Authority
CN
China
Prior art keywords
disk
code
angle
period
changing rule
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.)
Expired - Fee Related
Application number
CN201611032027.4A
Other languages
Chinese (zh)
Other versions
CN106778992A (en
Inventor
赵烟桥
樊琪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin University of Science and Technology
Original Assignee
Harbin University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN201611032027.4A priority Critical patent/CN106778992B/en
Publication of CN106778992A publication Critical patent/CN106778992A/en
Application granted granted Critical
Publication of CN106778992B publication Critical patent/CN106778992B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06046Constructional details
    • G06K19/06093Constructional details the marking being constructed out of a plurality of similar markings, e.g. a plurality of barcodes randomly oriented on an object

Abstract

The present invention is based on the information decoding methods of circumferential arrangement step array to belong to packed and transported, encrypting and decrypting and field of information security technology;The information decoding method based on circumferential arrangement step array first tears sponge outer layer, exposes coding internal layer;Then record respectively the first disk, in the second disk and third disk distance and angle corresponding relationship;Seek the changing rule of step in the first disk and the second disk with start line in the changing rule and third disk of angle and the position line with angle respectively again;And find initial position, determine step in the first disk, in the second disk in step and third disk the position line corresponding relationship;Finally according to the corresponding relationship of the position line in step in step in the first disk, the second disk and third disk, hiding information is identified;The present invention can change the mode that personal information is directly displayed on express delivery document, and then be resolved personal information fundamentally by the problem of express delivery document leakage.

Description

Information decoding method based on circumferential arrangement step array
Technical field
The present invention is based on the information decoding methods of circumferential arrangement step array to belong to packed and transported, encrypting and decrypting and information peace Full technical field.
Background technique
Online shopping has become a kind of consumption pattern indispensable in for people's lives, and express delivery list also becomes between both parties The important documents of transaction.Currently, since the personal information of both parties can be directly displayed on express delivery document, and according to express delivery Information on document is dispensed, therefore the personal information of both parties can be completely exposed in the links of dispatching, this It is just easy to cause the loss of personal information.It shows according to investigations, the personal information more than 70% is leaked by express delivery document, this gives Daily life brings many puzzlements, or even causes serious economic loss.
In face of the safety problem of leakage of personal information, although having appealed that government reinforces working out logistic industry in stringent prison Pipe mode, while also both parties are being improved to the protective awareness of personal information, but since personal information is directly displayed at fastly The problem of mode passed on document does not change, therefore personal information is revealed by express delivery document is also just had no idea fundamentally It is resolved.
Summary of the invention
In view of the above-mentioned problems, the invention discloses a kind of information decoding method based on circumferential arrangement step array, the party Method can change the mode that personal information is directly displayed on express delivery document, and then reveal personal information by express delivery document Problem is fundamentally resolved.
The object of the present invention is achieved like this:
A kind of packaging system with information hidden function, including Information hiding packing box and information decoding device,
The Information hiding packing box includes a cardboard box body, and the longitudinal direction of cardboard box body, which is provided with cross sectional shape, is Two end faces of the through-hole of rectangle, through-hole are sealed with opaque coating, and two opposite facades are respectively arranged with first in through-hole Step structure and second step structure;
The first step structure includes n step period, has p in i-th of step periodiA step, each step week Step height in phase is monotonically changed;
The second step structure includes step period identical with number of steps in first step structure, j-th of step week There is q in phasejA step, the step height in each step period are monotonically changed;The starting of any period in second step structure End and end are corresponding with the starting point of a step in first step structure and end end position;
The third facade of through-hole is provided with mark, an at most corresponding mark within each step period of first step structure Know;
The information decoding device includes the car body that can be moved in through-holes, is disposed an outwardly facing on the same section of car body The range unit of first step structure and second step structure, and the identity recognizer towards mark.
The above-mentioned packaging system with information hidden function, is provided with the facade of step structure, and centre is step structure, platform The both ends of stage structure are provided with track.
The wheel that can be advanced in orbit is provided on car body.
A kind of hiding information recognition methods based on distance identification, comprising the following steps:
Step a, information decoding device is passed through from through-hole according to fixed-direction, to first step structure recording distance and when Between corresponding relationship f1(d, t), to the corresponding relationship f of second step structure recording distance and time2(d, t), to identification record mark Number and the time corresponding relationship f3(n,t);
Step b, to f1(d, t) differentiates, and is greater than the time of threshold value in derivative absolute value, is step transformation period;In platform In rank transformation period, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step transformation period and lifting platform The changing rule of rank determines in first step structure that step changes with time rule;
Step c, to f2(d, t) differentiates, and is greater than the time of threshold value in derivative absolute value, is step transformation period;In platform In rank transformation period, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step transformation period and lifting platform The changing rule of rank determines in second step structure that step changes with time rule;
Step b execution synchronous with step c successively executes in any order;
Step d, according to f1(d,t)、f2(d, t) and f3Time equal principle, determines in first step structure in (n, t) The corresponding relationship of step and mark in step, second step structure;
Step e, according to the corresponding relationship of step and mark in step in first step structure, second step structure, identification Hiding information.
The above-mentioned hiding information recognition methods based on distance identification, step a close identification record label and the corresponding of time It is f3In (n, t), when information decoding device passes through first mark, label record 1, every by a mark, label adds 1.
Step e specifically:
Step e1, according to the label of mark, corresponding informance table is found;
Step e2, according to the corresponding relationship of step in step in first step structure and second step structure, information is found Information in table.
In step e1, corresponding informance table is found, is carried out according to the label of at least one mark.
The utility model has the advantages that
The first, compared with express delivery document, all personal information are all hidden in two step structures and mark by the present invention, People can not intuitively obtain information, therefore have the function of hiding personal information.
The second, in through-holes due to the setting of all information, and the top and bottom of through-hole are sealed using opaque coating, therefore can be with Ensure information security.
Third needs to puncture opaque coating due to identification information, can whether breakage judges by opaque coating Whether information leakage is had.
4th, after identification information, personal information be still hidden in two step structures and mark in, without to pack into Row damage processing.
5th, it in structure of the invention, i.e., does not require the step structure period equal, and does not require step width identical, increase Flexibility when practical application is added.
6th, it in structure of the invention, due to repainting step curve according to step relative altitude, and is encoded, Therefore accurate processing request is not done to the height of step, equally increases flexibility when practical application.
7th, it encodes and is flexibly changed with the corresponded manner of information, scalability is strong.
To sum up, the present invention can change the mode that personal information is directly displayed on express delivery document, and then make personal information The problem of being revealed by express delivery document is fundamentally resolved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Information hiding packing box.
Fig. 2 is the structural schematic diagram of information decoding device.
Specific embodiment
Specific embodiment one
The present embodiment is the information coding constructive embodiment based on circumferential arrangement step array.
The information coding structure based on circumferential arrangement step array of the present embodiment, including coding internal layer and sponge outer layer, The sponge outer layer is connect by torn line with internal layer is encoded, and the surface for encoding internal layer is provided with the first disk, the second disk and the Three disks;
The information coding structural schematic diagram based on circumferential arrangement step array before sponge outer layer is torn is as shown in Figure 1;
Sponge outer layer tear after the information coding structural schematic diagram based on circumferential arrangement step array as shown in Fig. 2, In Fig. 2, plateau rank is indicated with black, indicates low step with white;
First disk includes step period of the n central angle at arithmetic progression, each step period in circumferencial direction Interior step height is monotonically changed, and central angle corresponding to the step in the identical step period is equal, has in i-th of step period piThe step of a sector;
Second disk includes p in circumferencial directioniA step period, the step height dullness in each step period become Change, central angle corresponding to the step in the identical step period is equal, central angle corresponding to j-th of step period and the first circle Central angle corresponding to j-th of step is equal in disk, has q in j-th of step periodiThe step of a sector;
The third disk includes 1 start line and the n position line, 1 start line and n position in circumferencial direction Line is respectively positioned on radial location, and sectional view is triangle, corresponding maximum central angle step period in corresponding first disk of start line With the intersection in corresponding minimum central angle step period, every position line corresponds to a step period in the first disk.
Specific embodiment two
The present embodiment is the information decoding method embodiment based on circumferential arrangement step array.
The information decoding method based on circumferential arrangement step array of the present embodiment, based on circle described in the specific embodiment one It is realized in the information coding structure of week arrangement step array, method includes the following steps:
Step a, sponge outer layer is torn, exposes coding internal layer;
Step b, under conditions of plane where ensuring distance detector running track is parallel with plane where coding internal layer, Using the first circle disk center as the center of circle, using the random length no more than the first disc radius as radius, distance detector operation one A circular trace, to the corresponding relationship f of the first disk record distance and angle1(d11), using the second circle disk center as the center of circle, with Random length no more than the second disc radius is radius, and distance detector runs a circular trace, is remembered to the second disk Record the corresponding relationship f of distance and angle2(d22), using third circle disk center as the center of circle, to be no more than appointing for third disc radius Meaning length is radius, and distance detector runs a circular trace, to the corresponding relationship of third disk record distance and angle f3(d33);
Step c, to f1(d11) differentiate, it is step change location under the angle that derivative absolute value is greater than threshold value;? In step change location, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step change location and lifting The changing rule of step determines that step is with the changing rule of angle in the first disk;
Step d, to f2(d22) differentiate, it is step change location under the angle that derivative absolute value is greater than threshold value;? In step change location, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step change location and lifting The changing rule of step determines that step is with the changing rule of angle in the second disk;
Step e, to f3(d33) differentiate, it is step change location under the angle that derivative absolute value is greater than threshold value;? In step change location, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step change location and lifting The changing rule of step determines that start line and the position line are with the changing rule of angle in third disk;
Step c, step d execution synchronous with step e or in any order successively execution;
Step f, it finds in the first disk, corresponding maximum central angle step period and corresponding minimum central angle step period The position is defined as initial position by intersection, plans that step is with the changing rule f of angle in the first disk again1(d1,β);
Step g, it finds in the second disk, corresponding maximum central angle step period and corresponding minimum central angle step period The position is defined as initial position by intersection, plans that step is with the changing rule f of angle in the second disk again2(d2,β);
Step h, the start line in third disk is found, start line position is defined as initial position, planning again In third disk the position line with angle changing rule f3(d3,β);
Step f, step g execution synchronous with step h or in any order successively execution;
Step i, it is based on f1(d1,β)、f2(d2, β) and f3(d3, β) the equal principle of angle, determine step in the first disk, In second disk in step and third disk the position line corresponding relationship;
Step j, according to the corresponding relationship of the position line in step in step in the first disk, the second disk and third disk, Identify hiding information.
Specific embodiment three
The present embodiment is the information decoding method embodiment based on circumferential arrangement step array.
The information decoding method based on circumferential arrangement step array of the present embodiment, on the basis of specific embodiment two, Further limit step j the following steps are included:
Step j1, step in the first disk is encoded, the coding includes period code and step code;
Step j2, step in the second disk is encoded, the coding includes large period code, minor cycle code and small stair Code;
Step j3, the position line in third disk is encoded, the coding includes position code;
Step j1, step j2 execution synchronous with step j3 or in any order successively execution;
The position code, period code are consistent with large period code, and step code is consistent with minor cycle code;
Step j4, consistent with large period code based on position code, period code, step code and the minor cycle consistent principle of code will First disk, the second disk and third disk carry out integration coding, obtain period code, step code and small stair code;
Step j5, it is based on period code, step code and small stair code, finds the information in information table.
Specific embodiment four
The present embodiment is the information decoding method embodiment based on circumferential arrangement step array.
The information decoding method based on circumferential arrangement step array of the present embodiment, with the first disk, the second disk in Fig. 2 For third disk, the specific steps of this method are illustrated, comprising the following steps:
Step a, sponge outer layer is torn, exposes coding internal layer;
Step b, under conditions of plane where ensuring distance detector running track is parallel with plane where coding internal layer, Using the first circle disk center as the center of circle, using the random length no more than the first disc radius as radius, distance detector operation one A circular trace, to the corresponding relationship f of the first disk record distance and angle1(d11), using the second circle disk center as the center of circle, with Random length no more than the second disc radius is radius, and distance detector runs a circular trace, is remembered to the second disk Record the corresponding relationship f of distance and angle2(d22), using third circle disk center as the center of circle, to be no more than appointing for third disc radius Meaning length is radius, and distance detector runs a circular trace, to the corresponding relationship of third disk record distance and angle f3(d33);
For the first disk, the result detected is as shown in the table:
Angle Distance
0~60 Far
60~120 Closely
120~240 Far
240~360 Closely
For the second disk, the result detected is as shown in the table:
Angle Distance
0~30 Far
30~60 Closely
60~90 Far
90~120 Closely
120~180 Far
180~240 Closely
240~300 Far
300~360 Closely
For third disk, the result detected is as shown in the table:
Step c, to f1(d11) differentiate, it is step change location under the angle that derivative absolute value is greater than threshold value;? In step change location, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step change location and lifting The changing rule of step determines that step is with the changing rule of angle in the first disk;
Step d, to f2(d22) differentiate, it is step change location under the angle that derivative absolute value is greater than threshold value;? In step change location, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step change location and lifting The changing rule of step determines that step is with the changing rule of angle in the first disk;
Step e, to f3(d33) differentiate, it is step change location under the angle that derivative absolute value is greater than threshold value;? In step change location, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step change location and lifting The changing rule of step determines that start line and the position line are with the changing rule of angle in the first disk;
Step c, the step that step d and step e are obtained is as shown in the table with the changing rule of angle:
For the first disk, the result detected is as shown in the table:
Angle Distance
0~60 It is low
60~120 It is high
120~240 It is low
240~360 It is high
For the second disk, the result detected is as shown in the table:
For third disk, the result detected is as shown in the table:
Angle Distance
0 It is low
15 It is low
150 It is low
It is other It is high
Step c, step d execution synchronous with step e or in any order successively execution;
Step f, it finds in the first disk, corresponding maximum central angle step period and corresponding minimum central angle step period The position is defined as initial position by intersection, plans that step is with the changing rule f of angle in the first disk again1(d1,β);
Step g, it finds in the second disk, corresponding maximum central angle step period and corresponding minimum central angle step period The position is defined as initial position by intersection, plans that step is with the changing rule f of angle in the second disk again2(d2,β);
Step h, the start line in third disk is found, start line position is defined as initial position, planning again In third disk the position line with angle changing rule f3(d3,β);
In the present embodiment, since the first disk is only there are two the period, corresponding maximum central angle step period and right Answering the intersection in minimum central angle step period has two, and according to rotation counterclockwise, first intersection is the intersection to be looked for, due to The intersection of first disk, the second disk and third disk is all 0 degree of position, therefore the result after planning and the preceding phase of planning again Together;
Step f, step g execution synchronous with step h or in any order successively execution;
Step i, it is based on f1(d1,β)、f2(d2, β) and f3(d3, β) the equal principle of angle, determine step in the first disk, In second disk in step and third disk the position line corresponding relationship;
Obtained corresponding relationship is, low in low and the second disk in corresponding first disk of first position line, second It is low in low and the second disk in corresponding first disk of a position line;
Step j, according to the corresponding relationship of the position line in step in step in the first disk, the second disk and third disk, Identify hiding information.
First position line is province mark, step in the first disk, in the second disk step and province corresponding relationship It is as shown in the table:
First disk Second disk Province
It is low It is low A is saved
It is low It is high B is saved
It is high It is low C is saved
It is high It is high D is saved
According to the corresponding relationship in table, it is able to know that in low and the second disk in corresponding first disk of first position line It is low, it is corresponding be A save;
Second position line is urban sign, under the premise of determining corresponding to first position line is that A is saved, the first circle Step in disk, step and the corresponding relationship in city are as shown in the table in the second disk:
First disk Second disk Province
It is low It is low The city A
It is low It is high The city B
It is high It is low The city C
It is high It is high The city D
According to the corresponding relationship in table, it is able to know that in low and the second disk in corresponding first disk of first position line It is low, corresponding is the city A;
And so on, it can determine any information.
Even name information, the pronunciation of name can also be determined by initial consonant, simple or compound vowel of a Chinese syllable, tone, further according in the pronunciation In ranking determination be which word.
It should also be noted that, start line and the position line in third disk, it can be by the way that different linear or/and lines be arranged Width distinguishes.

Claims (1)

1. a kind of information decoding method based on circumferential arrangement step array, which comprises the following steps:
Step a, sponge outer layer is torn, exposes coding internal layer;
Step b, under conditions of plane is parallel with coding internal layer place plane where ensuring distance detector running track, with the One circle disk center is the center of circle, and using the random length no more than the first disc radius as radius, distance detector runs a circle Shape track, to the corresponding relationship f of the first disk record distance and angle1(d11), using the second circle disk center as the center of circle, not surpass Cross the second disc radius random length be radius, distance detector run a circular trace, to the second disk record away from The corresponding relationship f of walk-off angle degree2(d22), using third circle disk center as the center of circle, to be no more than the arbitrarily long of third disc radius Degree is radius, and distance detector runs a circular trace, to the corresponding relationship f of third disk record distance and angle3(d3, α3);The distance detects to obtain by distance detector, and distance refers to distance detector to first step structure or second The distance of stage structure;The angle is using start line as starting point;
Step c, to f1(d11) differentiate, it is step change location under the angle that derivative absolute value is greater than threshold value;In step In change location, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step change location and lifting step Changing rule, determine that step is with the changing rule of angle in the first disk;
Step d, to f2(d22) differentiate, it is step change location under the angle that derivative absolute value is greater than threshold value;In step In change location, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step change location and lifting step Changing rule, determine that step is with the changing rule of angle in the second disk;
Step e, to f3(d33) differentiate, it is step change location under the angle that derivative absolute value is greater than threshold value;In step In change location, derivative is stage rank less than 0, and it is drop step that derivative, which is greater than 0,;According to step change location and lifting step Changing rule, determine that start line and the position line are with the changing rule of angle in third disk;
Step c, step d execution synchronous with step e or in any order successively execution;
Step f, it finds in the first disk, the friendship in corresponding maximum central angle step period and corresponding minimum central angle step period The position is defined as initial position by line, plans that step is with the changing rule f of angle in the first disk again1(d1,β);
Step g, it finds in the second disk, the friendship in corresponding maximum central angle step period and corresponding minimum central angle step period The position is defined as initial position by line, plans that step is with the changing rule f of angle in the second disk again2(d2,β);
Step h, the start line in third disk is found, start line position is defined as initial position, to plan third again In disk the position line with angle changing rule f3(d3,β);
Step f, step g execution synchronous with step h or in any order successively execution;
Step i, it is based on f1(d1,β)、f2(d2, β) and f3(d3, β) and the equal principle of angle, determine step, second in the first disk In disk in step and third disk the position line corresponding relationship;
Step j, according to the corresponding relationship of the position line in step in step in the first disk, the second disk and third disk, identification Hiding information;The following steps are included:
Step j1, step in the first disk is encoded, the coding includes period code and step code;
Step j2, step in the second disk is encoded, the coding includes large period code, minor cycle code and small stair code;
Step j3, the position line in third disk is encoded, the coding includes position code;
Step j1, step j2 execution synchronous with step j3 or in any order successively execution;
The position code, period code are consistent with large period code, and step code is consistent with minor cycle code;
Step j4, consistent with large period code based on position code, period code, step code and the minor cycle consistent principle of code, by first Disk, the second disk and third disk carry out integration coding, obtain period code, step code and small stair code;
Step j5, it is based on period code, step code and small stair code, finds the information in information table.
CN201611032027.4A 2016-11-19 2016-11-19 Information decoding method based on circumferential arrangement step array Expired - Fee Related CN106778992B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611032027.4A CN106778992B (en) 2016-11-19 2016-11-19 Information decoding method based on circumferential arrangement step array

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611032027.4A CN106778992B (en) 2016-11-19 2016-11-19 Information decoding method based on circumferential arrangement step array

Publications (2)

Publication Number Publication Date
CN106778992A CN106778992A (en) 2017-05-31
CN106778992B true CN106778992B (en) 2019-04-19

Family

ID=58971775

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611032027.4A Expired - Fee Related CN106778992B (en) 2016-11-19 2016-11-19 Information decoding method based on circumferential arrangement step array

Country Status (1)

Country Link
CN (1) CN106778992B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102254141A (en) * 2011-06-08 2011-11-23 汕头市东方科技有限公司 Peripheral coding positioning system
CN103793735A (en) * 2014-01-28 2014-05-14 河海大学 Circular two-dimensional bar code and encoding and decoding method thereof
CN106022199A (en) * 2016-05-31 2016-10-12 王灿锋 Photomagnetic information coding disc, information reading device thereof, and information reading method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7934657B2 (en) * 2008-06-25 2011-05-03 Xerox Corporation Encoder home position sensing method and system
US8102282B2 (en) * 2009-03-10 2012-01-24 Pixart Imaging Inc. Encoding and decoding method for microdot matrix

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102254141A (en) * 2011-06-08 2011-11-23 汕头市东方科技有限公司 Peripheral coding positioning system
CN103793735A (en) * 2014-01-28 2014-05-14 河海大学 Circular two-dimensional bar code and encoding and decoding method thereof
CN106022199A (en) * 2016-05-31 2016-10-12 王灿锋 Photomagnetic information coding disc, information reading device thereof, and information reading method

Also Published As

Publication number Publication date
CN106778992A (en) 2017-05-31

Similar Documents

Publication Publication Date Title
Young Ideologies of the Postcolonial
Pedlosky et al. Circulation around islands and ridges
CN106778992B (en) Information decoding method based on circumferential arrangement step array
CN106778990B (en) Information coding structure based on circumferential arrangement step array
Chan et al. Media and politics in post-handover Hong Kong
CN204914962U (en) But air brushing of advertisement level, reflective membrane of carving characters
CN106411502B (en) A kind of hiding information recognition methods based on distance identification
CN106529639B (en) A kind of packaging system with information hidden function
CN106778988B (en) A kind of hiding information recognition methods based on gray scale identification
CN106778991B (en) Information decoding method based on circumferential arrangement striped array
CN102896926A (en) Laminated film with positioning hollow holographic anti-fake label
CN106557799B (en) Information coding structure based on circumferential arrangement striped array
CN106529640B (en) A kind of packaging system based on fringe gray level information hidden function
Lowry Does Computer Stored Data Constitute a Writing for the Purposes of the Statute of Frauds and the Statute of Wills
Krishnan Periodizing the Anglophone African Novel: Location (s) in a Transnational Literary Marketplace
David et al. Modernisation in EU-Russian relations: past, present and future
Peng et al. Evaluation of pavement treatment strategies for friction-deficient horizontal curves
CN201732517U (en) Corresponding identifier of logical letter
Smith Beneath and Beyond the Forty-Fifth American Presidency
Nost Governing AI, governing climate change?
Liedtka Analyzing the Impact of Payroll Exemption on Cost Behavior in the Civil Construction Sector of BM&FBovespa
Birtchnell All hail Jugaad? Understanding the latest management fad from India
Campanella State of Disaster: A Historical Geography of Louisiana’s Land Loss Crisis by Craig E. Colten
Buck-Mons Walter Beniamin: Between Academic Fashion and the Avant-Garde
Bronfman The Untold Story of the Talking Book

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190419

Termination date: 20201119

CF01 Termination of patent right due to non-payment of annual fee