CN105577896A - Information inter-transmission method and system - Google Patents
Information inter-transmission method and system Download PDFInfo
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- CN105577896A CN105577896A CN201410541190.8A CN201410541190A CN105577896A CN 105577896 A CN105577896 A CN 105577896A CN 201410541190 A CN201410541190 A CN 201410541190A CN 105577896 A CN105577896 A CN 105577896A
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- 230000005284 excitation Effects 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 33
- 238000012545 processing Methods 0.000 claims description 25
- 230000006854 communication Effects 0.000 claims description 16
- 238000012937 correction Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
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Abstract
The invention discloses an information inter-transmission method and system. When an intelligent terminal sends information to an external device, the intelligent terminal modulates to-be-sent data to brightness and/or color changing signals and adjusts the brightness and/or color of at least one part of display area of a screen according to the brightness and/or color changing signals; and the external device senses the brightness and/color change of the screen of the intelligent terminal and demodulates the sensed brightness and/color changing signals, thereby obtaining the data sent by the intelligent terminal. When the external device sends the information to the intelligent terminal, the external device modulates to-be-sent data into a charge changing signal and controls a charge change of a capacitance excitation module according to the charge changing signal; and the intelligent terminal detects a change of a capacitance value of a capacitive touch screen and demodulates the detected capacitance value changing signal to obtain the data sent by the external device. According to the technical scheme, the provided method and system have advantages of high security and low cost.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and a system for information mutual transmission.
Background
Since the apple Iphone4 came out, the smart phone industry has changed from the world, and smart phones with touch screens have almost become personal necessities. The communication technologies usually provided by the smart phone include bluetooth, infrared, NFC, WiFi and the like, and the communication technologies can conveniently realize data transmission between the smart phone and the smart phone or between the smart phone and other external devices, which brings great convenience to information sharing. However, in the field of financial payment, the communication technologies with long transmission distances, such as bluetooth, infrared and WiFi, are very easy to be intercepted by a third party, and have high potential safety hazards, so that the communication technologies are not suitable for being used as communication means of financial payment tools. NFC is a near field payment means developed recently, which limits a communication distance to prevent third party interception, and is widely applied in the field of financial IC cards, but is developed slowly in the field of smart phones, mainly because the communication technology at least includes a coil module and a 15.36Mhz transceiver module, thereby increasing the hardware cost of smart phones, which is also a main reason why some smart phone manufacturers do not add this function late.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for mutually transmitting information with high security and low cost, aiming at the above-mentioned defects of low security and high cost in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing an information mutual transmission method for mutual information transmission between an intelligent terminal and an external device,
when the intelligent terminal sends information to the external equipment, the following steps are carried out:
A1. the intelligent terminal modulates data to be transmitted into a brightness and/or color change signal and adjusts the brightness and/or color of at least one part of a display area of a screen of the intelligent terminal according to the brightness and/or color change signal;
A2. when the external equipment is close to the surface of the screen of the intelligent terminal, the brightness and/or color change of the screen of the intelligent terminal is sensed, and the sensed brightness and/or color change signal is demodulated to obtain data sent by the intelligent terminal.
When the external equipment sends information to the intelligent terminal, the following steps are carried out:
B1. the external equipment modulates data to be transmitted into a charge change signal and controls the charge change on a capacitance excitation module of the external equipment according to the charge change signal;
B2. when the intelligent terminal is close to the surface of the capacitance excitation module of the external equipment, the change of the capacitance value on the capacitance touch screen is detected, and the detected capacitance value change signal is demodulated to obtain the data sent by the external equipment.
In the information mutual transmission method of the invention,
in the step a1, the intelligent terminal performs encoding with an error correction function on data to be transmitted, and modulates the encoded data into a brightness and/or color change signal;
in step a2, after demodulating the sensed brightness and/or color change signal, the external device correspondingly decodes the demodulated data to obtain the data sent by the intelligent terminal.
In the information mutual transmission method of the invention,
in step B1, the external device encodes the data to be transmitted with an error correction function, and modulates the encoded data into a charge variation signal;
in step B2, after demodulating the detected capacitance value variation signal, the external device decodes the demodulated data to obtain the data sent by the external device.
In the information mutual transmission method, the code with the error correction function is a cyclic redundancy check code.
In the information mutual transmission method of the invention,
in the step a1, the intelligent terminal displays the data to be transmitted in multiple pages, and adds a specific synchronization identifier at a specific position of the screen when each page is displayed;
in step a2, the external device first determines whether the sensed brightness and/or color change signal belongs to the same page each time according to the synchronization identifier displayed on the screen of the intelligent terminal, and if so, demodulates the sensed brightness and/or color change signal to obtain the data sent by the intelligent terminal.
The invention also constructs a system for mutual information transmission, which comprises an intelligent terminal and an external device, wherein the intelligent terminal comprises a capacitive touch screen and a first processing module, the external device comprises a light sensing module, a capacitive excitation module and a second processing module,
the first processing module is used for modulating data to be transmitted into a brightness and/or color change signal when information is transmitted to external equipment, and adjusting the brightness and/or color of at least one part of a display area of the capacitive touch screen according to the brightness and/or color change signal; when the capacitance value is close to the surface of a capacitance excitation module of external equipment, detecting the change of the capacitance value on the capacitance touch screen, and demodulating the detected capacitance value change signal to obtain data sent by the external equipment;
the optical sensing module is used for sensing the brightness and/or color change of the capacitive touch screen of the intelligent terminal when the optical sensing module is close to the surface of the capacitive touch screen of the intelligent terminal;
the second processing module is used for demodulating the brightness and/or color change signals sensed by the light sensing module to obtain data sent by the intelligent terminal; and when information is sent to the intelligent terminal, modulating data to be sent into a charge change signal, and controlling the charge change on the capacitance excitation module according to the charge change signal.
In the information mutual transmission system of the invention,
the first processing module is further configured to, when sending information to an external device, perform encoding with an error correction function on data to be sent first, and then modulate the encoded data into a brightness and/or color change signal;
and the second processing module is further configured to demodulate the sensed brightness and/or color change signal and then correspondingly decode the demodulated data to obtain the data sent by the intelligent terminal.
In the information mutual transmission system of the invention,
the second processing module is further configured to, when sending information to the intelligent terminal, perform encoding with an error correction function on data to be sent first, and modulate the encoded data into a charge variation signal;
the first processing module is further configured to perform corresponding decoding on the demodulated data after demodulating the detected capacitance value change signal, so as to obtain data sent by an external device.
In the information mutual transmission system, the capacitance excitation module comprises a substrate and a capacitance matrix arranged on the substrate; or,
the capacitive excitation module is a second capacitive touch screen.
In the information mutual-sensing system, the light sensing module comprises a photoresistor and/or a photodiode and/or a CMOS (complementary metal oxide semiconductor) light sensor.
According to the technical scheme, the intelligent terminal can transmit data to the external equipment by utilizing the screen of the intelligent terminal to be matched with the optical sensing module of the external equipment, and the external equipment can transmit data to the intelligent terminal by utilizing the capacitive excitation module of the external equipment to be matched with the capacitive touch screen of the intelligent terminal. The transmission distance can be controlled within a short range, for example, 0-10 mm. Compared with the communication technology of remote data transmission such as Bluetooth and infrared, the information transmission mode of the invention has the advantages of short communication distance, difficult interception of communication signals by a third party and high safety. And compared with near field communication technologies such as NFC, the method has the advantages that the hardware structure of the intelligent terminal does not need to be changed, and the cost is low.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a flowchart of a first embodiment of sending information to an external device by an intelligent terminal in a method for information mutual transmission according to the present invention;
FIG. 2 is a flowchart of a first embodiment of sending information from an external device to an intelligent terminal in the method for information mutual transmission according to the present invention;
fig. 3 is a logic diagram of a first embodiment of the information mutual transmission system according to the present invention.
Detailed Description
The information mutual transmission method can realize information transmission between the intelligent terminal and external equipment, wherein the intelligent terminal is an intelligent mobile phone, a tablet personal computer, an intelligent watch and the like, and the external equipment is a U shield, a POS machine and the like, and certainly can be another intelligent terminal.
Fig. 1 is a flowchart of a first embodiment of sending information to an external device by an intelligent terminal in an information mutual transmission method of the present invention, in this embodiment, when the intelligent terminal needs to send information to the external device, the following steps are performed:
A1. the intelligent terminal modulates data to be transmitted into a brightness and/or color change signal, and adjusts the brightness and/or color of at least one part of a display area of a screen of the intelligent terminal according to the brightness and/or color change signal. That is, the intensity of light of the screen or some area of the screen is changed by the intelligent terminal according to the data sent by the intelligent terminal to the external device, and the data may be only one brightness and/or color signal carried by the whole screen or a part of the display area of the screen, or different brightness and/or color signals carried by a plurality of display areas of the screen. The variable quantity of the brightness and/or the color bears data information to be sent by the intelligent terminal;
A2. when the external device is close to the surface of the screen of the intelligent terminal, for example, when the distance between the external device and the intelligent terminal is kept at 0-10 mm, the brightness and/or color change of the screen of the intelligent terminal is sensed, and the sensed brightness and/or color change signal is demodulated to obtain data sent by the intelligent terminal. It should be noted that the demodulation method in this step corresponds to the modulation method in step a1, and the effective data loaded in the brightness and/or color variation is demodulated by the preset demodulation method, so as to implement the information transmission from the intelligent terminal to the external device.
On the basis of the above embodiments, preferably, in order to realize reliable transmission of information from the intelligent terminal to the external device, an error correction mechanism may also be set in the communication process. For example, in step a1, the intelligent terminal performs encoding with error correction function on the data to be transmitted, for example, encoding by using a Cyclic Redundancy Check (CRC) encoding method, and modulates the encoded data into a luminance and/or color change signal. Accordingly, in step a2, after demodulating the sensed brightness and/or color change signal, the external device decodes the demodulated data to obtain the data sent by the intelligent terminal.
In addition, if the smart terminal sends more data to the external device, the smart terminal may display the data to be sent in multiple pages, and due to the influence of the refresh rate or afterglow of the screen display of the smart terminal, it may cause distortion to the brightness and/or color change signal of the screen of the smart terminal sensed by the external device. The external device utilizes the synchronization identifier to ensure that the sensed screen brightness and/or color signal of each page is synchronized with the screen brightness and/or color signal of each page displayed by the intelligent terminal, namely, the screen brightness and/or color signal belongs to the same page. In this way, in step a2, the external device first determines whether the sensed brightness and/or color change signals belong to the same page each time according to the synchronization identifier displayed on the screen of the smart terminal, and if so, that is, the sensed brightness and/or color of the regions at the four corners of the screen are the same, demodulates the sensed brightness and/or color change signals to obtain the data sent by the smart terminal.
Fig. 2 is a flowchart of a first embodiment of sending information to an intelligent terminal by an external device in the method for mutually transmitting information according to the present invention, in which in this embodiment, when the external device needs to send information to the intelligent terminal, the following steps are performed:
B1. the external device modulates data to be sent into a charge change signal, and controls the charge change on a capacitance excitation module of the external device according to the charge change signal, for example, a plurality of electrodes on the capacitance excitation module are charged or discharged, so that the charge changes to drive a capacitance value of a capacitance touch screen of the intelligent terminal to change, and the capacitance change carries the data to be sent by the external device;
B2. when the intelligent terminal is close to the surface of the capacitance excitation module of the external equipment, the change of the capacitance value on the capacitance touch screen is detected, and the detected capacitance value change signal is demodulated to obtain the data sent by the external equipment. The demodulation method in this step corresponds to the modulation method in step B1, and the effective information loaded in the capacitance value variation can be demodulated by a preset demodulation method, thereby realizing information transmission from the external device to the smart terminal.
On the basis of the above embodiment, preferably, in order to realize reliable transmission of information from the external device to the intelligent terminal, an error correction mechanism may also be set in the communication process. For example, in step B1, the external device performs encoding with error correction function on the data to be transmitted, for example, encoding by using a Cyclic Redundancy Check (CRC) encoding method, and modulates the encoded data into the charge variation signal. Accordingly, in step B2, the external device demodulates the detected capacitance value variation signal, and then decodes the demodulated data accordingly to obtain the data transmitted by the external device.
Fig. 3 is a logic diagram of a first embodiment of the information mutual transmission system according to the present invention, where the information mutual transmission system includes a smart terminal 10 and an external device 20, the smart terminal 10 is, for example, a smart phone, a tablet computer, a smart watch, and the like, and the external device 20 is, for example, a U-shield, a POS machine, and the like, but may also be another smart terminal. Moreover, in this embodiment, the smart terminal 10 includes the first processing module 11 and the capacitive touch screen 12, the external device 20 includes the second processing module 21, the optical sensing module 22 and the capacitive excitation module 23, and the capacitive excitation module 23 may include a substrate and a capacitive matrix disposed on the substrate, and may also be a capacitive touch screen; the light sensing module 22 may include a photo resistor or a photo diode, such as a single photo resistor or a single photo diode, or a photo resistor array or a photo diode array composed of a plurality of photo resistors or photo diodes, when it is only used for sensing the brightness of the screen of the smart terminal. The light sensing module 22 may be a CMOS light sensor when sensing only the color of the screen of the smart terminal or sensing both the color and the brightness of the screen of the smart terminal. The first processing module 11 is configured to modulate data to be transmitted into a brightness and/or color change signal when transmitting information to the external device 20, and adjust the brightness and/or color of at least a part of a display area of the capacitive touch screen 12 according to the brightness and/or color change signal; and is further configured to detect a change in capacitance value on the capacitive touch screen 12 when approaching the surface of the capacitive excitation module 23 of the external device, and to demodulate the detected change in capacitance value signal to obtain data transmitted by the external device 20. The light sensing module 22 is used for sensing the brightness and/or color change of the capacitive touch screen 12 of the smart terminal 10 when the light sensing module approaches the surface of the capacitive touch screen 12 of the smart terminal 10. The second processing module 21 is configured to demodulate the brightness and/or color change signal sensed by the light sensing module 22 to obtain data sent by the intelligent terminal 10; and is further configured to modulate data to be transmitted into a charge variation signal when transmitting information to the smart terminal 10, and control the charge variation on the capacitance excitation module 23 according to the charge variation signal.
Preferably, in order to improve the reliability of the intelligent terminal 10 for sending information to the external device 20, the first processing module 11 is further configured to, when sending information to the external device 20, perform encoding with an error correction function on data to be sent, and then modulate the encoded data into a brightness and/or color change signal. Correspondingly, the second processing module 21 is further configured to, after demodulating the sensed brightness and/or color change signal, correspondingly decode the demodulated data to obtain the data sent by the intelligent terminal 10. Similarly, in order to improve the reliability of the external device 20 transmitting information to the smart terminal 10, the second processing module 21 is further configured to perform encoding with an error correction function on data to be transmitted before modulating the encoded data into the charge variation signal when transmitting information to the smart terminal 10. Correspondingly, the first processing module 11 is further configured to, after demodulating the detected capacitance value variation signal, correspondingly decode the demodulated data to obtain data sent by the external device. Finally, it should be noted that the encoding and decoding can be performed in the corresponding processing module, or a specific codec can be specifically configured.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. An information mutual transmission method is used for mutual information transmission between an intelligent terminal and external equipment and is characterized in that,
when the intelligent terminal sends information to the external equipment, the following steps are carried out:
A1. the intelligent terminal modulates data to be transmitted into a brightness and/or color change signal and adjusts the brightness and/or color of at least one part of a display area of a screen of the intelligent terminal according to the brightness and/or color change signal;
A2. when the external equipment is close to the surface of the screen of the intelligent terminal, the brightness and/or color change of the screen of the intelligent terminal is sensed, and the sensed brightness and/or color change signal is demodulated to obtain data sent by the intelligent terminal.
When the external equipment sends information to the intelligent terminal, the following steps are carried out:
B1. the external equipment modulates data to be transmitted into a charge change signal and controls the charge change on a capacitance excitation module of the external equipment according to the charge change signal;
B2. when the intelligent terminal is close to the surface of the capacitance excitation module of the external equipment, the change of the capacitance value on the capacitance touch screen is detected, and the detected capacitance value change signal is demodulated to obtain the data sent by the external equipment.
2. The method of claim 1, wherein the message is transmitted from the server to the client,
in the step a1, the intelligent terminal performs encoding with an error correction function on data to be transmitted, and modulates the encoded data into a brightness and/or color change signal;
in step a2, after demodulating the sensed brightness and/or color change signal, the external device correspondingly decodes the demodulated data to obtain the data sent by the intelligent terminal.
3. The method of claim 1, wherein the message is transmitted from the server to the client,
in step B1, the external device encodes the data to be transmitted with an error correction function, and modulates the encoded data into a charge variation signal;
in step B2, after demodulating the detected capacitance value variation signal, the external device decodes the demodulated data to obtain the data sent by the external device.
4. The method for information transmission according to claim 2 or 3, wherein the code with error correction function is a cyclic redundancy check code.
5. The method of claim 1, wherein the message is transmitted from the server to the client,
in the step a1, the intelligent terminal displays the data to be transmitted in multiple pages, and adds a specific synchronization identifier at a specific position of the screen when each page is displayed;
in step a2, the external device first determines whether the sensed brightness and/or color change signal belongs to the same page each time according to the synchronization identifier displayed on the screen of the intelligent terminal, and if so, demodulates the sensed brightness and/or color change signal to obtain the data sent by the intelligent terminal.
6. The system for mutual information transmission comprises an intelligent terminal and an external device, and is characterized in that the intelligent terminal comprises a capacitive touch screen and a first processing module, the external device comprises a light sensing module, a capacitive excitation module and a second processing module,
the first processing module is used for modulating data to be transmitted into a brightness and/or color change signal when information is transmitted to external equipment, and adjusting the brightness and/or color of at least one part of a display area of the capacitive touch screen according to the brightness and/or color change signal; when the capacitance value is close to the surface of a capacitance excitation module of external equipment, detecting the change of the capacitance value on the capacitance touch screen, and demodulating the detected capacitance value change signal to obtain data sent by the external equipment;
the optical sensing module is used for sensing the brightness and/or color change of the capacitive touch screen of the intelligent terminal when the optical sensing module is close to the surface of the capacitive touch screen of the intelligent terminal;
the second processing module is used for demodulating the brightness and/or color change signals sensed by the light sensing module to obtain data sent by the intelligent terminal; and when information is sent to the intelligent terminal, modulating data to be sent into a charge change signal, and controlling the charge change on the capacitance excitation module according to the charge change signal.
7. The information communication system according to claim 6,
the first processing module is further configured to, when sending information to an external device, perform encoding with an error correction function on data to be sent first, and then modulate the encoded data into a brightness and/or color change signal;
and the second processing module is further configured to demodulate the sensed brightness and/or color change signal and then correspondingly decode the demodulated data to obtain the data sent by the intelligent terminal.
8. The information communication system according to claim 6,
the second processing module is further configured to, when sending information to the intelligent terminal, perform encoding with an error correction function on data to be sent first, and modulate the encoded data into a charge variation signal;
the first processing module is further configured to perform corresponding decoding on the demodulated data after demodulating the detected capacitance value change signal, so as to obtain data sent by an external device.
9. The system for information interchange according to claim 6, wherein the capacitive excitation module includes a substrate and a capacitive matrix disposed on the substrate; or,
the capacitive excitation module is a second capacitive touch screen.
10. The system for mutual information transfer according to claim 6, wherein the light sensing module comprises a photoresistor and/or a photodiode and/or a CMOS light sensor.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541190.8A CN105577896B (en) | 2014-10-14 | 2014-10-14 | The method and system that information mutually passes |
| PCT/CN2015/090093 WO2016058470A1 (en) | 2014-10-14 | 2015-09-21 | Method and system for mutual transmission of information |
| TW104133680A TWI585590B (en) | 2014-10-14 | 2015-10-14 | Methods and systems for information exchange |
| HK16110882.2A HK1222750A1 (en) | 2014-10-14 | 2016-09-14 | Method and system for mutual transmission of information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541190.8A CN105577896B (en) | 2014-10-14 | 2014-10-14 | The method and system that information mutually passes |
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| Publication Number | Publication Date |
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| CN105577896A true CN105577896A (en) | 2016-05-11 |
| CN105577896B CN105577896B (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410541190.8A Active CN105577896B (en) | 2014-10-14 | 2014-10-14 | The method and system that information mutually passes |
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| Country | Link |
|---|---|
| CN (1) | CN105577896B (en) |
| HK (1) | HK1222750A1 (en) |
| TW (1) | TWI585590B (en) |
| WO (1) | WO2016058470A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425910A (en) * | 2016-08-26 | 2017-12-01 | 深圳大学 | The method of near-field communication is carried out using the RGB ambient light sensors of mobile terminal |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106941378A (en) * | 2017-04-17 | 2017-07-11 | 胡燕红 | A kind of closely data sink and the means of communication |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6173899B1 (en) * | 1998-04-03 | 2001-01-16 | Alexander Rozin | Method and system for contactless energy transmission and data exchange between a terminal and IC card |
| CN1808371A (en) * | 2006-02-21 | 2006-07-26 | 广州矽金塔电子有限公司 | Method for transmitting signal via screen and its receiving apparatus |
| CN103780306A (en) * | 2014-01-16 | 2014-05-07 | 祝衍军 | Serial data transmission system and serial data transmission method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2900752B1 (en) * | 2006-05-05 | 2008-10-10 | Inside Contactless Sa | METHOD AND DEVICE FOR DATA TRANSMISSION BY LOAD MODULATION |
-
2014
- 2014-10-14 CN CN201410541190.8A patent/CN105577896B/en active Active
-
2015
- 2015-09-21 WO PCT/CN2015/090093 patent/WO2016058470A1/en active Application Filing
- 2015-10-14 TW TW104133680A patent/TWI585590B/en not_active IP Right Cessation
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2016
- 2016-09-14 HK HK16110882.2A patent/HK1222750A1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6173899B1 (en) * | 1998-04-03 | 2001-01-16 | Alexander Rozin | Method and system for contactless energy transmission and data exchange between a terminal and IC card |
| CN1808371A (en) * | 2006-02-21 | 2006-07-26 | 广州矽金塔电子有限公司 | Method for transmitting signal via screen and its receiving apparatus |
| CN103780306A (en) * | 2014-01-16 | 2014-05-07 | 祝衍军 | Serial data transmission system and serial data transmission method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425910A (en) * | 2016-08-26 | 2017-12-01 | 深圳大学 | The method of near-field communication is carried out using the RGB ambient light sensors of mobile terminal |
| WO2018036279A1 (en) * | 2016-08-26 | 2018-03-01 | 深圳大学 | Method for performing near-field communication using rgb ambient light sensor of mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105577896B (en) | 2019-08-02 |
| TW201617912A (en) | 2016-05-16 |
| HK1222750A1 (en) | 2017-07-07 |
| TWI585590B (en) | 2017-06-01 |
| WO2016058470A1 (en) | 2016-04-21 |
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