CN106803119A - RFID label tag device - Google Patents
RFID label tag device Download PDFInfo
- Publication number
- CN106803119A CN106803119A CN201611117627.0A CN201611117627A CN106803119A CN 106803119 A CN106803119 A CN 106803119A CN 201611117627 A CN201611117627 A CN 201611117627A CN 106803119 A CN106803119 A CN 106803119A
- Authority
- CN
- China
- Prior art keywords
- rfid label
- label tag
- working face
- loop
- aerial coil
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record 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
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record 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
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/0772—Physical layout of the record carrier
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record 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
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07775—Antenna details the antenna being on-chip
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention provides a kind of RFID label tag device, including:Structural member, it has at least two mutual working faces at an acute angle or obtuse angle;With at least one RFID label tag loop being arranged on structural member, at least one RFID label tag loop includes at least two aerial coils, and wherein each aerial coil is arranged on a working face.RFID label tag device of the invention can realize that two aerial coils are spatially set in an acute angle or obtuse angle, plane where avoiding two aerial coils is spatially perpendicular or parallel, and then the antenna transmitting electromagnetic wave direction out of plumb of at least one aerial coil and plug-in reader can be ensured, signal blind zone phenomenon can be prevented effectively from, the recognition efficiency of label is improved.
Description
Technical field
The present invention relates to REID, more particularly to a kind of RFID label tag device.
Background technology
Radio frequency identification (RFID) is a kind of wireless communication technology, by radio signals identification specific objective and can be read and write
Related data, and without setting up machinery or optical contact between identifying system and specific objective.After label enters magnetic field, receive
The radiofrequency signal that plug-in reader sends, storage product information (nothing in the chips is sent out by the energy that induced-current is obtained
Source label or passive tag), or the signal of a certain frequency is actively sent by label, after plug-in reader reads information and decoding, send
Relevant data processing is carried out to CIS.At present taking cost into account, what is used on existing household appliances is generally passive
Formula label is passive label.
Passive label inside, without power supply, is to launch electromagnetic wave by the antenna of plug-in reader to couple connection circuit by coil
Produce loop signal.When label is vertical with the antenna transmitting electromagnetic wave direction of plug-in reader or two labels are close together,
The termination power of passive label is not easy to produce circuit coupling in magnetic field, it is impossible to produce loop signal.Particularly in refrigerator
When using, after user deposits the food materials of a large amount of tape labels in refrigerator, two labels are possible to shield mutually or label is empty
Between it is upper vertical with the magnetic direction of the antenna of plug-in reader, it is impossible to produce and couple, cause plug-in reader None- identified this label.
The content of the invention
In view of the above problems, it is proposed that the present invention so as to provide one kind overcome above mentioned problem or at least in part solve on
State the RFID label tag device of problem.
The present invention one is further objective is that the recognition efficiency of RFID label tag will be improved.
The present invention another further objective is that to prevent RFID label tag by skip.
Especially, the invention provides a kind of RFID label tag device, including:
Structural member, it has at least two mutual working faces at an acute angle or obtuse angle;With
At least one RFID label tag loop on the structural member is arranged at, at least one RFID label tag loop includes
At least two aerial coils, wherein each described aerial coil are arranged on a working face.
Alternatively, wherein the quantity in the RFID label tag loop is one, the RFID label tag loop includes being arranged in parallel
At least two aerial coils.
Alternatively, wherein the RFID label tag loop is printed on one substrate, the substrate sticks at least two simultaneously
On the individual working face, and each described aerial coil is set to be on a working face.
Alternatively, wherein the RFID label tag loop is directly printed on the working face, and each described antenna line is made
Circle is on a working face.
Alternatively, wherein the quantity in the RFID label tag loop is at least two, each described RFID label tag loop storage
There is identical identification information, wherein each described RFID label tag loop only sets an aerial coil, and each described RFID mark
Road is signed back to be on a working face.
Alternatively, wherein each described RFID label tag loop is printed on one substrate, and each described substrate is sticked in
On one working face.
Alternatively, wherein the RFID label tag loop all printing on one substrate, the substrate stick in simultaneously to
On few two working faces, and each described RFID label tag loop is set to be on a working face.
Alternatively, wherein each described RFID label tag loop is directly printed on a working face.
Alternatively, wherein the structural member has polyhedral structure, at least two surfaces of the polyhedral structure are mutual
At an acute angle or obtuse angle is set, and
Each described working face is a surface at least two surface of the polyhedral structure.
Alternatively, wherein the quantity of the working face is two, the RFID label tag loop includes two be arranged in parallel
Aerial coil.
The present invention is by by the structural member with least two mutual working faces at an acute angle or obtuse angle and with least two
At least one RFID label tag loop of individual aerial coil constitutes a RFID label tag device, and each aerial coil is arranged at into one
On individual working face, realize that any two aerial coil is spatially set in an acute angle or obtuse angle, it is to avoid any two antenna
Plane where coil is spatially perpendicular or parallel, and then can ensure the antenna transmitting electricity of at least one aerial coil and plug-in reader
Magnetic wave direction out of plumb, can be prevented effectively from signal blind zone phenomenon, improve the recognition efficiency of label.
Further, the present invention is arranged in parallel by by least two aerial coils, and makes the aerial coil of parallel connection in sky
Between at an angle, it is ensured that at least one aerial coil can produce label signal, it is to avoid only have single antenna line
Electromagnetic wave occurs in use in the RFID label tag of circle cannot pass through signal circuit to produce the situation of electric current, so as to solve label make
The situation of signal, label skip cannot be produced to occur during.
Further, due to the invention can ensure that at least one aerial coil can produce label signal, by the present invention
The identification of RFID label tag can be effectively solved the problems, such as, is particularly effectively solved when refrigerator inside places label, because of food stacking
Or the label skip problem of label generation vertical with reception antenna.
According to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will be brighter
Of the invention above-mentioned and other purposes, advantages and features.
Brief description of the drawings
Describe some specific embodiments of the invention in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the schematic diagram of RFID label tag device according to an embodiment of the invention, and its structural member has two
Individual working face;
Fig. 2 is two expanded views of working face of structural member shown in Fig. 1, and one of RFID label tag loop is arranged on simultaneously
On two working faces;
Fig. 3 is two expanded views of working face of structural member shown in Fig. 1, and wherein each working face is separately provided a RFID
Label loop;
Fig. 4 is the schematic diagram of RFID label tag device in accordance with another embodiment of the present invention;
Fig. 5 is the schematic diagram of the RFID label tag device according to another embodiment of the invention, and its structural member has
Four working faces;
Fig. 6 is four expanded views of working face of structural member shown in Fig. 5, and one of RFID label tag loop is arranged on simultaneously
On four working faces;
Fig. 7 is four expanded views of working face of structural member shown in Fig. 5, and wherein each working face is separately provided a RFID
Label loop.
Specific embodiment
In embodiments of the present invention, RFID label tag device may include structural member and is arranged on structural member extremely in general manner
A few RFID label tag loop.As those skilled in the art will appreciate that, RFID label tag loop generally include IC chip and by
Aerial coil and capacitor bank into oscillating circuit.Aerial coil is used for receiving the signal sent by plug-in reader, and requiring
Data send back plug-in reader.
Especially, structural member has at least two mutual working faces at an acute angle or obtuse angle, foregoing at least one RFID marks
Signing back road includes at least two aerial coils, and each aerial coil is arranged on a working face.That is, structure
Part has more than two working faces, and any two working face is not parallel and equal out of plumb, and is set on each working face
Put an aerial coil.The present invention by by have at least two mutual working faces at an acute angle or obtuse angle structural member with have
At least one RFID label tag loop of at least two aerial coils constitutes a RFID label tag device, and each aerial coil is set
It is placed on a working face, realizes that any two aerial coil is spatially set in an acute angle or obtuse angle, it is to avoid any two
Plane where individual aerial coil is spatially perpendicular or parallel, and then can ensure the antenna of at least one aerial coil and plug-in reader
Transmitting electromagnetic wave direction out of plumb, can be prevented effectively from signal blind zone phenomenon, improve the recognition efficiency of label.
In some embodiments of the invention, structural member can have two, three, four or more mutually it is at an acute angle or
The working face at obtuse angle.It should be readily apparent to one skilled in the art that the surface of structural member there can be multiple, but it is not meant to structural member
Each surface be working face.For the RFID label tag device of the invention, structural member is provided with aerial coil
Surface is just referred to as working face.
In some embodiments of the invention, the quantity in RFID label tag loop can be one, and RFID label tag loop includes
At least two aerial coils being arranged in parallel.For example, RFID label tag loop may include to be arranged in parallel two aerial coils, three
Aerial coil, four aerial coils or more aerial coil.
In other embodiments of the invention, the quantity in the RFID label tag loop that RFID label tag device 100 has be to
Few two, each RFID label tag loop is stored with identical identification information, and wherein each RFID label tag loop can only set one
Aerial coil, and each RFID label tag loop is arranged on a working face.For example, the RFID that RFID label tag device 100 has
The quantity in label loop can for two, three, four or more.
Fig. 1 is the schematic diagram of RFID label tag device 100 according to an embodiment of the invention, and its structural member 10 has
There are two working faces (i.e. working face 11 and working face 12).Referring to Fig. 1, structural member 10 can be by horizontally extending level board
With the hang plate composition of the extension that is inclined upwardly from level board.Angle between level board and hang plate is acute angle or obtuse angle.Level
One in the upper and lower surface of plate as working face 12, in the both side surface of hang plate is used as working face 11.
Fig. 2 is two expanded views of working face of structural member 10 shown in Fig. 1, the upper surface of level board as working face 12,
The inner surface (i.e. towards a side surface of working face 12) of hang plate is used as working face 11.One RFID label tag loop 201 is same
When be arranged on working face 11 and working face 12.Referring to Fig. 2, RFID label tag loop 201 includes the aerial coil L1 being arranged in parallel
Constitute oscillating circuit with aerial coil L2, aerial coil L1 and aerial coil L2 and capacitor, be tuned to plug-in reader transmitting frequently
Rate.Aerial coil L1 and aerial coil L2 are respectively on working face 11 and working face 12.Referring to Fig. 2, the RFID label tag loop
201 is well-known to those skilled in the art, be will not be described here.
In this embodiment, RFID label tag loop 201 is printable on one substrate, and the substrate sticks in working face simultaneously
11 and working face 12 on, and aerial coil L1 and aerial coil L2 is respectively on working face 11 and working face 12.So
Embodiment in, equivalent to first preparing RFID label tag loop 201, then RFID label tag loop 201 is sticked in into working face 11 and work
Make on face 12.In an alternative embodiment, also RFID label tag loop 201 can be directly printed on working face 11 and working face 12
On, and aerial coil L1 and aerial coil L2 is respectively on working face 11 and working face 12.
Fig. 3 is two expanded views of working face of structural member 10 shown in Fig. 1, and wherein each working face is separately provided one
RFID label tag loop 202.In such embodiments, RFID label tag device 100 has two RFID label tag loops 202, two
RFID label tag loop 202 is separately positioned on working face 11 and working face 12.Each RFID label tag loop 202 is stored with identical
Identification information, wherein each RFID label tag loop 202 can only set an aerial coil L1.Referring to Fig. 3, the RFID label tag loop
202 is well-known to those skilled in the art, be will not be described here.
In certain embodiments, each RFID label tag loop 202 is printable on one substrate, and each substrate is sticked in
On one working face (i.e. two substrates are sticked on working face 11 and working face 12 respectively).In an alternative embodiment, two
RFID label tag loop 202 is all printed on one substrate, and the substrate is sticked on working face 11 and working face 12, and make simultaneously
One RFID label tag loop 202 is on working face 11, and another RFID label tag loop 202 is on working face 12.Another
In a little embodiments, each RFID label tag loop 202 can be also directly printed on a working face.
In certain embodiments, structural member 10 can have polyhedral structure, and at least two surfaces of the polyhedral structure are mutual
Mutually at an acute angle or obtuse angle is set, and each working face is a surface at least two surface of the polyhedral structure.
Fig. 4 is the schematic diagram of RFID label tag device 100 in accordance with another embodiment of the present invention.Shown in Fig. 4
Embodiment in, structural member 10 is with five polyhedral structures on surface.In this embodiment, the quantity of working face for example may be used
Be two, can using in five surfaces positioned at the surface of rear side and positioned at bottom surface as working face 11 and working face
12.It is similar with embodiment shown in Fig. 1, a RFID label tag loop can be respectively provided with working face 11 and working face 12;
Or a RFID label tag loop is set jointly on working face 11 and working face 12, and make the antenna in each RFID label tag loop
Coil is on a working face.
Fig. 5 is the schematic diagram of the RFID label tag device 100 according to another embodiment of the invention, its structural member 10
It is tetrahedral structure, and with four working faces, respectively working face 11, working face 12, working face 13 and working face 14.
Fig. 6 is four expanded views of working face of structural member 10 shown in Fig. 5, and one of RFID label tag loop 203 is simultaneously
It is arranged on working face 11, working face 12, working face 13 and working face 14.Referring to Fig. 6, RFID label tag loop 203 is included simultaneously
Join aerial coil L1, aerial coil L2, the aerial coil L3 and aerial coil L4 for setting.Aerial coil L1, aerial coil L2,
Aerial coil L3 and aerial coil L4 are separately positioned on working face 11, working face 12, working face 13 and working face 14.Ginseng
See Fig. 6, the RFID label tag loop 203 is well-known to those skilled in the art, be will not be described here.
In this embodiment, RFID label tag loop 203 is printable on one substrate, and the substrate sticks in working face simultaneously
11st, on working face 12, working face 13 and working face 14, and aerial coil L1, aerial coil L2, aerial coil L3 and day are made
Line coil L4 is respectively on working face 11, working face 12, working face 13 and working face 14.In such embodiments, phase
When in first preparing RFID label tag loop 203, then RFID label tag loop 203 is sticked in into working face 11, working face 12, working face 13
And on working face 14.In an alternative embodiment, also RFID label tag loop 203 can be directly printed on working face 11, work
On face 12, working face 13 and working face 14, and make aerial coil L1, aerial coil L2, aerial coil L3 and aerial coil
L4 is respectively on working face 11, working face 12, working face 13 and working face 14.
Fig. 7 is four expanded views of working face of structural member 10 shown in Fig. 5, and wherein each working face is separately provided one
RFID label tag loop 202.In such embodiments, RFID label tag device 100 has four RFID label tag loops 202, four
RFID label tag loop 202 is separately positioned on working face 11, working face 12, working face 13 and working face 14.Each RFID is marked
Sign back road 202 to be stored with identical identification information, wherein each RFID label tag loop 202 only sets an aerial coil L1.
In some embodiments, each RFID label tag loop 202 is printable on one substrate, and each substrate sticks in a working face
On.In an alternative embodiment, four RFID label tag loops 202 are all printed on one substrate, and the substrate is sticked in simultaneously
On working face 11, working face 12, working face 13 and working face 14, and a RFID label tag loop 202 is set to be in a job
On face.In further embodiments, each RFID label tag loop 202 can be also directly printed on a working face.
It should be readily apparent to one skilled in the art that in the RFID label tag device 100 shown in Fig. 5, can also have a label
Loop 201 and two label loops 202;Or with two label loops 201.
In certain embodiments, structural member 10 can be made of plastics.
One skilled in the art will recognize that, it is provided with aerial coil or RFID label tag and returns for structural member 10 each
The working face on road, can be set layer protecting film, to protect RFID label tag loop thereon.RFID label tag device 100 of the invention
Can stick on identified article, can be also folded on article by clip.
RFID label tag device of the invention is particularly well-suited to be managed the article of refrigerator memory storage.In the present invention,
When the article stored in being used for refrigerator by RFID label tag device 100 is managed, due to the contoured article of refrigerator memory storage
And to stack situation more special, inventors herein have recognized that, structural member 10 is provided between the working face of aerial coil
Angle when being 15~75 degree or 105~165 degree, beneficial to the identification or reading of RFID label tag device 100, particularly in structural member
When 10 angle being provided between the working face of aerial coil is 30~60 degree or 120~150 degree, RFID label tag is more favorable for
The identification or reading of device 100.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple of the invention and show
Example property embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
It is determined that or deriving many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all these other variations or modifications.
Claims (10)
1. a kind of RFID label tag device, including:
Structural member, it has at least two mutual working faces at an acute angle or obtuse angle;With
At least one RFID label tag loop on the structural member is arranged at, at least one RFID label tag loop is included at least
Two aerial coils, wherein each described aerial coil are arranged on a working face.
2. RFID label tag device according to claim 1, wherein the quantity in the RFID label tag loop is one, it is described
RFID label tag loop includes at least two aerial coils being arranged in parallel.
3. RFID label tag device according to claim 2, wherein RFID label tag loop printing is on one substrate, institute
Substrate is stated while sticking on working face described at least two, and each described aerial coil is in a working face
On.
4. RFID label tag device according to claim 2, wherein the RFID label tag loop is directly printed on the work
On face, and each described aerial coil is set to be on a working face.
5. RFID label tag device according to claim 1, wherein the quantity in the RFID label tag loop is at least two, often
The individual RFID label tag loop is stored with identical identification information, and wherein each described RFID label tag loop only sets an antenna
Coil, and each described RFID label tag loop is on a working face.
6. RFID label tag device according to claim 5, wherein each described RFID label tag loop is printed on a substrate
On, and each described substrate sticked on a working face.
7. RFID label tag device according to claim 5, wherein the RFID label tag loop is all printed on a substrate
On, the substrate is sticked on working face described at least two simultaneously, and each described RFID label tag loop is in an institute
State on working face.
8. RFID label tag device according to claim 5, wherein each described RFID label tag loop is directly printed on one
On the working face.
9. RFID label tag device according to claim 1, wherein the structural member has polyhedral structure, the polyhedron
At least two surfaces of structure are at an acute angle mutually or obtuse angle is set, and
Each described working face is a surface at least two surface of the polyhedral structure.
10. RFID label tag device according to claim 2, wherein the quantity of the working face is two, the RFID marks
Signing back road includes two aerial coils being arranged in parallel.
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CN201611117627.0A CN106803119A (en) | 2016-12-07 | 2016-12-07 | RFID label tag device |
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CN201611117627.0A CN106803119A (en) | 2016-12-07 | 2016-12-07 | RFID label tag device |
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CN106803119A true CN106803119A (en) | 2017-06-06 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108004631A (en) * | 2018-01-15 | 2018-05-08 | 江南大学 | A kind of spinning frame omnidirectional's RFID tag |
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CN103390802A (en) * | 2013-07-24 | 2013-11-13 | 深圳市江波龙电子有限公司 | NFC (near field communication) antenna module, card reader and intelligent card |
CN104573793A (en) * | 2014-12-17 | 2015-04-29 | 深圳市海云天科技股份有限公司 | RFID tag, article with same and identification system |
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US20010000960A1 (en) * | 1998-05-18 | 2001-05-10 | Dettloff Wayne D. | Systems and methods for wirelessly projecting power using multiple in-phase current loops |
CN102281084A (en) * | 2010-06-11 | 2011-12-14 | 索尼公司 | Communication device |
CN103390802A (en) * | 2013-07-24 | 2013-11-13 | 深圳市江波龙电子有限公司 | NFC (near field communication) antenna module, card reader and intelligent card |
CN104573793A (en) * | 2014-12-17 | 2015-04-29 | 深圳市海云天科技股份有限公司 | RFID tag, article with same and identification system |
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CN108004631A (en) * | 2018-01-15 | 2018-05-08 | 江南大学 | A kind of spinning frame omnidirectional's RFID tag |
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