CN102882558A - Near field communication device based on SOC (System On Chip) - Google Patents
Near field communication device based on SOC (System On Chip) Download PDFInfo
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- CN102882558A CN102882558A CN2011101968764A CN201110196876A CN102882558A CN 102882558 A CN102882558 A CN 102882558A CN 2011101968764 A CN2011101968764 A CN 2011101968764A CN 201110196876 A CN201110196876 A CN 201110196876A CN 102882558 A CN102882558 A CN 102882558A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a near field communication device based on an SOC (System On Chip). The near field communication device comprises an SOC unit, an electromagnetic composite material antenna and a power module for supplying power to the SOC unit, wherein the SOC unit comprises an MCU (Micro-programmed Control Unit) core processing module and a radio frequency module; a communication port of the MCU core processing module is connected with a communication end of the radio frequency module; and a receiving end and a transmitting end of the radio frequency module are connected with the electromagnetic composite material antenna. According to the near field communication device, the integral space requirements are extremely lowered, the consumption of electric power is reduced, the power amplifier efficiency of the radio frequency is improved by applying the SOC and the power consumption is reduced; the size of the applied electromagnetic composite material antenna is small, the absorbed energy is less, the loss is low and the conversion efficiency of the antenna is improved; and the near field communication device disclosed by the invention has the advantages of low manufacturing cost, strong practical applicability and applicability to various fields.
Description
Technical field
The invention belongs to field of wireless communication, relate to a kind of close range wireless communication device.
Background technology
In field of wireless communication, NFC (Near Field Communication) near field communication (NFC) has obtained using more and more widely, this technology is to be initiated by PHILIPS Co., is united a wireless technology of promoting mainly by manufacturers such as Nokia, Sonys.NFC is that radio-frequency (RF) identification and the Technology Integration that interconnects develop by noncontact, and combining induction card reader, induction type card and point-to-point function on one chip can be identified and exchanges data with compatible equipment within closely.Compare traditional WIFI and bluetooth (BT) design in case fixing just being difficult to revised upgrading, and mistake can't correct also, can obtain to design more flexibly and accuracy by the NFC technology.
In present NFC communication system, traditional radio frequency unit power amplification efficiency is low, and non-linearization, volume is large and power consumption is large, thereby so that radio frequency unit can't obtain good performance.Simultaneously, the traditional antenna design absorbs more energy, produces larger echo, thereby so that the antenna conversion efficiency is low and volume is larger, thereby affected application and the maintenance of NFC.Radio frequency and antenna have played crucial effect, but because traditional wireless radio-frequency slower development, the radio-frequency antenna system is large, power consumption is large, maintenance and replacement problem have seriously hindered the development of wireless broadband communication, also greatly improve simultaneously the operation cost of operator, can't satisfy radio frequency miniature and demand integrated and green energy resource and low-power consumption.
Summary of the invention
In order to solve the problem that exists in the existing near field communication (NFC), the invention provides a kind of close range wireless communication device, realize the miniaturization of this device and good communication effect by SOC and magnetoelectric composites antenna, in order to realize the foregoing invention purpose, by the following technical solutions:
A kind of close range wireless communication device based on SOC comprises: SOC unit, magnetoelectric composites antenna and the power module of giving the power supply of described SOC unit, and described SOC unit comprises MCU nuclear processing module and radio-frequency module; Described MCU nuclear processing module communication port links to each other with the communication terminal of described radio-frequency module, and the reception of described radio-frequency module links to each other with described magnetoelectric composites antenna with transmitting terminal.
Further, described MCU nuclear processing module comprises memory, described memory built-in dsp software.Described dsp software is realized low noise amplification, digital-to-analogue/analog-to-digital conversion, filtering, the Up/Down Conversion and phase-locked of described MCU nuclear processing module and radio-frequency module output.
Further, described memory stores communications protocol software information.
Further, described radio-frequency module comprises transmitter, receiver and duplexer; The input of described transmitter and the output of receiver consist of the communication terminal of described radio-frequency module; The output of described duplexer links to each other with transmitter with described receiver respectively with input.
Described magnetoelectric composites antenna comprises medium substrate, feeder line, is attached to the sheet metal on medium substrate one surface, described feeder line is by the described sheet metal of coupled modes feed-in, hollow out has micro groove structure to form metal routing at sheet metal on the described sheet metal, and described magnetoelectric composites antenna is preset with the space that electronic component embeds.
Further, described magnetoelectric composites antenna is dual polarized antenna or multi-polarization antenna.
Further, described power module is the solar cell module.
Close range wireless communication device of the present invention has greatly reduced the overall space demand, has reduced the consumption of electric energy, uses SOC and has improved radio-frequency (RF) power amplification efficient, has reduced power consumption; The magnetoelectric composites antenna volume of using is little, the little energy of absorption, and loss is low, has improved the conversion efficiency of antenna; Close range wireless communication device low cost of manufacture of the present invention, practical, can be applicable to multiple occasion.
Description of drawings
Fig. 1 is the structural representation of the first embodiment of close range wireless communication device of the present invention;
Fig. 2 is the structural representation of the second embodiment of close range wireless communication device of the present invention;
Fig. 3 is a kind of structural representation of magnetoelectric composites antenna in the close range wireless communication device of the present invention;
Fig. 4 is the another kind of structural representation of magnetoelectric composites antenna in the close range wireless communication device of the present invention;
Fig. 5 is the structural representation at another visual angle of Fig. 4;
Fig. 6 is the structural representation of a kind of execution mode of Fig. 4 structure.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings and the specific embodiments.
Figure 1 shows that the first embodiment of close range wireless communication device of the present invention, this close range wireless communication device comprises power module 1, SOC unit 2 and magnetoelectric composites antenna 3, power module 1 provides electric energy for SOC unit 2, this power module 1 can be dry cell batteries, it also can be the solar cell module, because the SOC cell height is integrated, can prolong the continued power time of power module 1.Magnetoelectric composites antenna 3 receives extraneous data and exports to SOC unit 2, and the data transmission of reception SOC unit 2 outputs is gone out the magnetoelectric composites antenna 3 that the present invention uses, relatively with common antenna, effectively reduce the volume of antenna, and improved transformation efficiency, reduced loss.SOC unit 2 comprises MCU nuclear processing module 21 and radio-frequency module 22, MCU nuclear processing module 21 communication port link to each other with the communication terminal of radio-frequency module 22, the reception of radio-frequency module 22 links to each other with magnetoelectric composites antenna 3 with transmitting terminal, the data that radio-frequency module 22 receives from magnetoelectric composites antenna 3 output to MCU nuclear processing module 21, process after MCU nuclear processing module 21 receives data; First data are sent to radio-frequency module 22 during the output of MCU nuclear processing module 21 data, output to magnetoelectric composites antenna 3 by radio-frequency module 22 and launch.
Be illustrated in figure 2 as the second embodiment of close range wireless communication device of the present invention, in this embodiment, compare with the first embodiment, power module 1, SOC unit 2 and magnetoelectric composites antenna 3 have been comprised equally, power module 1 can be dry cell batteries or solar cell module, and SOC unit 2 has comprised MCU nuclear processing module 21 and radio-frequency module 22 equally.
In a second embodiment, MCU nuclear processing module 21 comprises memory 211 and core processor (not shown in FIG.), memory 211 built-in dsp software, dsp software receives the instruction of core processor can carry out low noise amplification, digital-to-analogue/analog-to-digital conversion, filtering, Up/Down Conversion and the processing such as phase-locked to data, memory 211 memory communicating protocol software information, this communications protocol can be Zigbee protocol, Bluetooth protocol etc.Radio-frequency module 22 comprises transmitter 221, receiver 222 and duplexer 223, the output of the input of transmitter 221 and receiver 222 has consisted of the communication terminal of radio-frequency module 22 with MCU nuclear processing module 21 communication port transfer of data, the output of duplexer 223 links to each other with transmitter 221 with receiver 222 respectively with input, simultaneously, duplexer 223 is reception and transmitting terminals of radio-frequency module 22 and magnetoelectric composites antenna 3 transfer of data.
When using, power module 1 starts to 2 power supplies of SOC unit, and MCU nuclear processing module 21 loads and is positioned at the built-in dsp software of memory 211.
Magnetoelectric composites antenna 3 receives extraneous data, after receiving data these data are outputed to SOC unit 2, data are introduced into the receiving terminal of the duplexer 223 of radio-frequency module 22, enter receiver 222 through duplexer 223 data, the output of receiver 222 outputs to these data the communication terminal of MCU nuclear processing module 21, dsp software operation in the core processor control storage 211 in the MCU nuclear processing module 21, dsp software is judged these data and these data is handled it, to carry out successively up-conversion for the data that enter MCU nuclear processing module 21, analog-to-digital conversion, filtering, the large processing of digital-to-analogue conversion and LNA, and result outputed to memory 211.
When MCU nuclear processing module 21 has data to need externally output, dsp software reads and processes it, carry out successively the large processing of down-conversion, digital-to-analogue conversion, filtering, analog-to-digital conversion and LNA for the data that output to dsp software, data after will being processed by the communication terminal of MCU nuclear processing module 21 are exported to the transmitter 221 of radio-frequency module 22, output by transmitter 221 sends these data to duplexer 223, output through duplexer 223 sends magnetoelectric composites antenna 3 to, by magnetoelectric composites antenna 3 these data is sent.
Figure 3 shows that the structure of the magnetoelectric composites antenna 3 among the present invention, this magnetoelectric composites antenna 3 is unipole antennas, has adopted the perspective view technique of painting, does not draw in the drawings its wiring pin.Magnetoelectric composites antenna 3 comprises medium substrate 31, feeder line 32, is attached to the sheet metal 34 on medium substrate 31 1 surfaces, feeder line 32 is by coupled modes feed-in sheet metal 34, the metal routing 342 that hollow out has micro groove structure 341 and forms at sheet metal 34 on the sheet metal 34, be preset with the space that electronic component embeds on the magnetoelectric composites antenna 3,351 spaces for default electronic component embedding among Fig. 3,363,365,366,367 is that default space has embedded electronic component.Feeder line 32 arranges around sheet metal 34 and realizes coupling, and sheet metal 34 can contact with feeder line 32, also can not contact.When sheet metal 34 contacts with feeder line 32, inductive coupled between feeder line 32 and the sheet metal 34; When sheet metal 34 does not contact with feeder line 32, capacitive coupling between feeder line 32 and the sheet metal 34.
Be preset with the space 363 that embeds the capacitive electronic component between feeder line 32 and sheet metal 34, the position in default embedding electronic component space can be the optional position between feeder line 32 and the sheet metal 34.Itself have certain electric capacity between feeder line 32 and the sheet metal 34, here by embedding the signal coupling between capacitive electronic component adjusting feeder line and the sheet metal 34, using formula:
So square being inversely proportional to of the size of capacitance and operating frequency as can be known is when the operating frequency that needs during for low operating frequency, by suitable embedded capacitor or the realization of perceptual electronic component.The capacitance scope of the capacitive electronic component that adds is usually between 0-2pF, but the capacitance that embeds along with the variation of magnetoelectric composites operating frequency of antenna also may exceed the scope of 0-2pF.Certainly, also can between feeder line 32 and sheet metal 34, preset a plurality of spaces.Equally, in not being connected with the space of electronic component, adopt the wire short circuit.
Be reserved with the space that embeds perceptual electronic component and/or resistance at the metal routing 342 of sheet metal, embed that the space of electronic component not only is confined to provide among the figure 365 and 366, as long as other positions satisfy condition all can.The purpose that embeds perceptual electronic component herein is the inductance value that increases sheet metal internal resonance structure, thus the effect that resonance frequency and the bandwidth of operation of magnetoelectric composites antenna played adjusting; The purpose of embedded resistor is to improve the radiation resistance of magnetoelectric composites antenna herein.So to embedding perceptual electronic component or resistance, then decide as required.In not embedding the space of electronic component, adopt the wire short circuit in addition.
Be reserved with the space that embeds the capacitive electronic component at micro groove structure 341, and described space connects the metal routing 342 of both sides.The space that embeds electronic component not only limit to Fig. 3 in provide 367, as long as other positions satisfy condition all can.Embed the resonance performance that the capacitive electronic component can change sheet metal, Q value and the resonance working point of finally improving the magnetoelectric composites antenna.As common practise, we know that the pass of passband BW and resonance frequency w0 and quality factor q is: BW=wo/Q, and this formula shows that Q is larger, and then passband is narrower, the less then passband of Q is wider.Other has: Q=wL/R=1/wRC, and wherein, Q is quality factor; Supply frequency when w is circuit resonance; L is inductance; R is the resistance of string; C is electric capacity, and by the Q=wL/R=1/wRC formula as can be known, Q and C are inverse ratio, therefore, can reduce the Q value by adding the capacitive electronic component, and passband is broadened.
Space to be preserved position on the magnetoelectric composites antenna 3 among the present invention is not limited to above-mentioned several form, as long as the space is arranged on the magnetoelectric composites antenna, for example, the space can also be arranged on the medium substrate.
Electronic component is perceptual electronic component, capacitive electronic component or resistance among the present invention.After in the headspace of magnetoelectric composites antenna, adding this type of electronic component, can improve the various performances of magnetoelectric composites antenna.And by adding the electronic component of different parameters, can realize the adjustable of magnetoelectric composites antenna performance parameters.Therefore, magnetoelectric composites antenna of the present invention can be the same structure before not adding any element, just by adding different electronic components at diverse location, and the parameter of electronic component (inductance value, resistance value, capacitance), realize the performance parameter of different magnetoelectric composites antennas.Namely realized versatility.Can significantly reduce production costs.
Space of the present invention can be pad, also can be a vacancy.The structure of pad can be referring to the pad on the common circuit board.Certainly, the needs that the design consideration of its size is different can be different.
In addition, among the present invention, medium substrate is made by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, being made by macromolecular material, can be the macromolecular materials such as FR-4, F4B particularly.Sheet metal is copper sheet or silver strip.Be preferably copper sheet, cheap, conduct electricity very well.Feeder line is selected with the same material of sheet metal and is made.Be preferably copper.
Among the present invention, about the processing and manufacturing of magnetoelectric composites antenna, as long as satisfy design principle of the present invention, can adopt various manufactures.Prevailing method is to use the manufacture method of all kinds of printed circuit board (PCB)s (PCB), certainly, metallized through hole, the PCB of double-sided copper-clad makes also can satisfy processing request of the present invention.Except this processing mode, can also introduce according to the actual needs other manufacturing process, (RFID is the abbreviation of Radio Frequency Identification such as RFID, be REID, be commonly called as electronic tag) but in the processing mode that makes up of the processing mode of flexible PCB processing, iron plate antenna of employed conductive silver paste printing ink processing mode, all kinds of deformation devices and iron plate and PCB.Wherein, iron plate and PCB combination processing mode refers to utilize the accurate processing of PCB to finish the processing of magnetoelectric composites antenna micro groove structure, finishes other slave part with iron plate.In addition, can also process by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
Fig. 4, Fig. 5 are the another kind of structural representations of magnetoelectric composites antenna 3 among the present invention, and magnetoelectric composites antenna shown in this Fig is a kind of dual polarized antenna, has adopted equally foreshortened figure, does not draw in the drawings wiring pin.Magnetoelectric composites antenna 3 comprises medium substrate 31, be attached to the first sheet metal 34 and second sheet metal 37 on medium substrate 31 relative two surfaces, be provided with the first feeder line 32 around the first sheet metal 34, the second feeder line 33, be provided with the 3rd feeder line 38 around the second sheet metal 37, the 4th feeder line 39, described the first feeder line 32 and the second feeder line 33 are all by described the first sheet metal 34 of coupled modes feed-in, described the 3rd feeder line 38 and the 4th feeder line 39 are all by described the second sheet metal 37 of coupled modes feed-in, hollow out has the first micro groove structure 341 to form the first metal routing 342 at the first sheet metal on described the first sheet metal 34, hollow out has the second micro groove structure 371 to form the second metal routing 372 at the second sheet metal on described the second sheet metal 37, described the first feeder line 32 is electrically connected with the 3rd feeder line 38, described the second feeder line 33 is electrically connected with the 4th feeder line 39, and described magnetoelectric composites antenna 3 is preset with the space 36 that electronic component embeds.This kind design is equivalent to magnetoelectric composites has increased antenna physical length (the physical length size does not increase), so just can design the radio-frequency antenna that is operated under the very low operation frequency in minimum space.Solve the physics limitation of traditional antenna antenna controlled space area when low frequency operation.
The first feeder line 32 is electrically connected by the plated-through hole 310 of opening at medium substrate 31 with the 3rd feeder line 38, and described the second feeder line 33 is electrically connected by the plated-through hole 320 of opening at medium substrate 31 with the 4th feeder line 39.
Figure 4 shows that the structural representation of magnetoelectric composites antenna of the present invention, Fig. 5 is another visual angle figure shown in Figure 4.Comprehensive two figure can find out that the structure of adhering on a surface of medium substrate and the b surface is identical.Namely the first feeder line, the second feeder line, the first sheet metal overlap with the 3rd feeder line, the 4th feeder line, the second sheet metal respectively in the projection on b surface.Certainly, this is a preferred scheme, and the surperficial structure from the b surface of a as required also can be different.
The first feeder line 32 and the second feeder line 33 all arrange to realize signal coupling around the first sheet metal 34.Other the first sheet metal 34 can contact with the second feeder line 33 with the first feeder line 32, also can not contact.When the first sheet metal 34 contacts with the first feeder line 32, inductive coupled between the first feeder line 32 and the first sheet metal 34; When the first sheet metal 34 does not contact with the first feeder line 32, capacitive coupling between the first feeder line 32 and the sheet metal 34.Equally, when the first sheet metal 34 contacts with the second feeder line 33, inductive coupled between the second feeder line 33 and the first sheet metal 34; When the first sheet metal 34 does not contact with the second feeder line 33, capacitive coupling between the second feeder line 33 and the first sheet metal 34.
The 3rd feeder line 38 and the 4th feeder line 39 all arrange to realize signal coupling around the second sheet metal 37.Other the second sheet metal 37 can contact with the 3rd feeder line 38, the 4th feeder line 39, also can not contact.When the second sheet metal 37 contacts with the 3rd feeder line 38, inductive coupled between the 3rd feeder line 38 and the second sheet metal 37; When the second sheet metal 37 does not contact with the 3rd feeder line 38, capacitive coupling between the 3rd feeder line 38 and the sheet metal 37.Equally, when the second sheet metal 37 contacts with the 4th feeder line 39, inductive coupled between the 3rd feeder line 38 and two sheet metals 37; When two sheet metals 37 do not contact with the 4th feeder line 39, capacitive coupling between the 4th feeder line 39 and the second sheet metal 37.
Among the present invention, the first sheet metal of described medium substrate two apparent surfaces can be connected with the second sheet metal, also can not connect.In the first sheet metal and the unconnected situation of the second sheet metal, between described the first sheet metal and the second sheet metal by capacitively coupled mode feed; In such cases, can realize the resonance of the first sheet metal and the second sheet metal by the thickness that changes medium substrate.In the situation that the first sheet metal and the second sheet metal are electrically connected (for example the form by wire or plated-through hole is connected), between described the first sheet metal and the second sheet metal by inductive coupled mode feed.
The magnetoelectric composites antenna of different polarization modes can be obtained by the feed placement that changes feeder line, therefore, dual polarization electromagnetism composite material antenna can be obtained by changing the first feeder line from the different of the 3rd feeder line, the second feeder line and the 4th feeder line feed placement.Preferably, the feeding classification of the first feeder line and the 3rd feeder line is horizontal polarization, and the feeding classification of the second feeder line and the 4th feeder line is perpendicular polarization, and every kind of polarization mode realizes following several situations according to different needs:
(1) a kind of polarization mode in horizontal polarization and the perpendicular polarization only is used for receiving electromagnetic wave, and another kind of polarization mode is used for emitting electromagnetic wave.
(2) a kind of polarization mode in horizontal polarization and the perpendicular polarization only is used for receiving electromagnetic wave, and another kind of polarization mode is used for transmitting and receiving electromagnetic wave.
(3) two kinds of polarization modes in horizontal polarization and the perpendicular polarization are all be used to transmitting and receiving electromagnetic wave.
Figure 6 shows that a kind of further execution mode of magnetoelectric composites antenna among Fig. 4 and Fig. 5,351 spaces for default electronic component embedding among Fig. 6,362,363,364,365,366,367 is that default space has embedded electronic component.Each position embedding electronic component is identical with corresponding spatial embedding electronic component role among Fig. 3 among Fig. 6, does not do to launch narration at this.The manufacture method etc. that wherein embeds locus, medium substrate material, sheet metal material and the magnetoelectric composites antenna of electronic component all can be identical with magnetoelectric composites antenna shown in Figure 3.
Fig. 3-magnetoelectric composites antenna shown in Figure 6, namely super material antenna under the prerequisite that satisfies the close range wireless communication apparatus function, has greatly reduced the volume of antenna.
Below only be the description to embodiments of the invention, can not consist of restriction of the present invention, all be within protection scope of the present invention in the development of the situation that does not break away from aim of the present invention.
Claims (10)
1. the close range wireless communication device based on SOC is characterized in that, comprising: SOC unit, magnetoelectric composites antenna and the power module of giving the power supply of described SOC unit, and described SOC unit comprises MCU nuclear processing module and radio-frequency module; Described MCU nuclear processing module communication port links to each other with the communication terminal of described radio-frequency module, and the reception of described radio-frequency module links to each other with described magnetoelectric composites antenna with transmitting terminal.
2. close range wireless communication device according to claim 1 is characterized in that, described MCU nuclear processing module comprises memory, described memory built-in dsp software.
3. close range wireless communication device according to claim 2 is characterized in that, described dsp software is realized low noise amplification, digital-to-analogue/analog-to-digital conversion, filtering, the Up/Down Conversion and phase-locked of described MCU nuclear processing module and radio-frequency module output.
4. close range wireless communication device according to claim 2 is characterized in that, described memory stores communications protocol software information.
5. close range wireless communication device according to claim 4 is characterized in that, described radio-frequency module comprises transmitter, receiver and duplexer; The input of described transmitter and the output of receiver consist of the communication terminal of described radio-frequency module; The output of described duplexer links to each other with transmitter with described receiver respectively with input.
6. each described close range wireless communication device according to claim 1-5, it is characterized in that, described magnetoelectric composites antenna comprises medium substrate, feeder line, is attached to the sheet metal on medium substrate one surface, described feeder line is by the described sheet metal of coupled modes feed-in, hollow out has micro groove structure to form metal routing at sheet metal on the described sheet metal, and described magnetoelectric composites antenna is preset with the space that electronic component embeds.
7. close range wireless communication device according to claim 6 is characterized in that, described spatial placement is reaching at least one of these three positions of sheet metal between feeder line, feeder line and the sheet metal.
8. close range wireless communication device according to claim 6 is characterized in that, described electronic component is perceptual electronic component, capacitive electronic component or resistance.
9. each described close range wireless communication device is characterized in that according to claim 1-5, and described magnetoelectric composites antenna is dual polarized antenna or multi-polarization antenna.
10. each described close range wireless communication device is characterized in that according to claim 1-5, and described power module is the solar cell module.
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Owner name: SHENZHEN GUANGQI INTELLIGENT PHOTONICS TECHNOLOGY Free format text: FORMER OWNER: SHENZHEN KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Effective date: 20150715 Free format text: FORMER OWNER: SHENZHEN KUANG-CHI INNOVATION TECHNOLOGY CO., LTD. Effective date: 20150715 |
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Effective date of registration: 20150715 Address after: 518000 Guangdong city of Shenzhen province Futian District Shennan Road and CaiTian Road intersection East Xintiandi Plaza C block 2007-27 Patentee after: Shenzhen Guang Qi intelligent photonic Technology Co., Ltd. Address before: 518000 Nanshan District City, Guangdong province high tech Zone in the middle of a high tech building, No. 9 software building Patentee before: Shenzhen Kuang-Chi Institute of Advanced Technology Patentee before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. |
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Effective date of registration: 20210224 Address after: 2 / F, software building, No.9, Gaoxin Zhongyi Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 518000 Guangdong, Shenzhen, Futian District, Shennan Road and colored field road intersection C East Block New World Plaza 2007-27 Patentee before: KUANG-CHI INTELLIGENT PHOTONIC TECHNOLOGY Ltd. |
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