WO2020101059A1 - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
- Publication number
- WO2020101059A1 WO2020101059A1 PCT/KR2018/013884 KR2018013884W WO2020101059A1 WO 2020101059 A1 WO2020101059 A1 WO 2020101059A1 KR 2018013884 W KR2018013884 W KR 2018013884W WO 2020101059 A1 WO2020101059 A1 WO 2020101059A1
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- WO
- WIPO (PCT)
- Prior art keywords
- mobile terminal
- capacitor
- metal
- disposed
- driver
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/14—Details of telephonic subscriber devices including a card reading device
Definitions
- the present disclosure pertains to a technical field of the mobile communication, and more particularly, relates to a mobile terminal.
- a magnetic strip payment card is a card containing a magnetic strip, such as a credit card, a bank card, a gift card or the like.
- the magnetic strip payment card implements storing data in a magnetic strip by changing a direction of magnetic particles in the magnetic strip.
- Magnetic information on the magnetic strip payment card is read by a reader, when the magnetic strip payment card performs swiping operation through a point-of-sale machine (POS machine).
- POS machine point-of-sale machine
- Magnetic strip data transmission technology is a technology of converting data to a corresponding magnetic field and radiating the magnetic field out to be read by a reader and to make the reader think that a swiping operation is being performed, and finally implementing a same function of swiping the magnetic strip payment card.
- the MST has been implemented in a mobile terminal, and the current MST is generally applied in a mobile terminal with a non-metal rear cover. Coils for generating and radiating a magnetic field in the MST are generally disposed at a back part of the mobile terminal, which may be seen after dismounting the rear cover of the mobile terminal.
- a mobile terminal of a metal material that is more popular at present, that is, most parts of an outer structure of the mobile terminal are formed of the metal material, since a metal has stronger capability of weakening a magnetic field, an application of the magnetic strip data transmission on the mobile terminal of the metal material is caused to have a certain limitation.
- a purpose of the present disclosure aims to provide a mobile terminal to resolve a problem that an application of the magnetic strip data transmission on the mobile terminal of the metal material has a certain limitation.
- One aspect of the present disclosure provides a mobile terminal, the mobile terminal including a metal rear cover and a driver disposed on a mainboard, wherein the metal rear cover includes a predetermined conductive path, of which two ends are electrically connected to two ports of the driver to form a loop, the driver outputs a current signal converted based on prestored magnetic strip data, and the loop generates and radiates a magnetic signal indicating the magnetic strip data.
- an inductance value of the loop is within a predetermined range, and a resistance value of the loop is less than a predetermined value.
- the metal rear cover includes at least two metal parts, the adjacent metal parts are fixedly connected by a non-metal material, and an electrical connection part for electrically connecting the adjacent metal parts is disposed between the adjacent metal parts.
- a magnetic core film is disposed at the non-metal material between the adjacent metal parts.
- a material of the magnetic core film is a ferrite.
- two metal domes which are electrically connected to two ports of the driver, respectively, are disposed on the mainboard, and the metal domes are in contact with the metal part forming the conductive path.
- the loop further includes a matching circuit for impedance matching and filtering.
- the matching circuit includes a first capacitor and a second capacitor disposed between two ends of the conductive path and the two ports of the driver, respectively, and a third capacitor disposed between the first capacitor and the second capacitor.
- the matching circuit further includes a fourth capacitor connected to the third capacitor in parallel.
- the matching circuit further includes a first inductance and a second inductance disposed between two ends of the conductive path and the first capacitor and second capacitor, respectively.
- a conductive path for radiating a magnetic field is disposed on a metal rear cover, two ends of the conductive path are electrically connected to two ports of a driver to form a loop such that a current signal converted based on magnetic strip data is output into the loop by the driver, and the loop will generate and transmit a magnetic signal indicating the magnetic strip data, thereby implementing the application of the MST in the mobile terminal of a metal material.
- FIG. 1 is a structural diagram illustrating a mobile terminal according to an embodiment of the present disclosure.
- FIG. 2 is a diagram illustrating a matching circuit according to an embodiment of the present disclosure.
- FIG. 1 is a structural diagram illustrating a mobile terminal according to an embodiment of the present disclosure.
- a mobile terminal according to an embodiment of the present disclosure may be various electronic apparatuses, for example, a mobile communication terminal, a personal computer (PC), a tablet computer, a game machine, a digital multimedia player and the like.
- PC personal computer
- tablet computer a tablet computer
- game machine a digital multimedia player and the like.
- the mobile terminal includes a metal rear cover 1 and a driver 3 disposed on a mainboard 2.
- the metal rear cover 1 of the mobile terminal shown in FIG. 1 is not assembled on the main body of the mobile terminal.
- the metal rear cover includes a predetermined conductive path thereon. Both ends 4 and 5 of the conductive path are electrically connected to two ports 6 and 7 of the driver 3 to form a loop.
- the driver 3 outputs a current signal converted based on prestored magnetic strip data.
- the loop generates and transmits a magnetic signal indicating the magnetic strip data, when the current signal output from the driver 3 passes through the loop.
- the electrical connections between the two ends 4 and 5 of the conductive path and the two ports 6 and 7 of the driver 3 may be implemented by various manners.
- the electrical connection between the two ends 4 and 5 of the conductive path and the two ports 6 and 7 of the driver 3 may be preferably a flexible electrical connection.
- metal domes 8 and 9 which are electrically connected to the two ports 4 and 5 of the driver, respectively, are disposed on the mainboard, and when the metal rear cover 1 is assembled with the main body of the mobile terminal, the metal domes 8 and 9 are in contact with the two ends 4 and 5 of the conductive path on the metal rear cover 1 such that the two ends 4 and 5 of the conductive path are electrically connected to the two ports 6 and 7 of the driver 3.
- the metal rear cover 1 may include at least two metal parts, the adjacent metal parts are fixedly connected by a non-metal material 10, and an electrical connection part 11 for electrically connecting the adjacent metal parts is disposed between the adjacent metal parts.
- the at least two metal parts form the conductive path through the electrical connection part 11, wherein the at least two metal parts are connected in series by the electrical connection part 11 in the conductive path.
- the two ends 4 and 5 of the conductive path are disposed in two metals having the furthest electrical distance among the at least two metal parts, respectively.
- the at least two metal parts may be arranged side by side.
- the current signal output by the driver 3 is converted based on the prestored magnetic strip data.
- a magnetic field corresponding to the electrical signal will be generated around the loop when the current signal output by the driver 3 passes through the loop, and since the current signal is converted based on the magnetic strip data, the magnetic field may reflect the magnetic strip data. That is to say, the loop will generate and transmit the magnetic signal indicating the magnetic strip data. The magnetic signal will reflect the magnetic strip data. When the mobile terminal approaches a POS machine, the magnetic signal will be read by the POS machine, and the POS machine will convert the read magnetic signal to the magnetic strip data.
- an inductance value of the loop needs to be within a predetermined range.
- a resistance value of the loop needs to be less than a predetermined value.
- a magnetic core film may be disposed at the non-metal material between the above adjacent metal parts to improve the inductance value of the loop.
- the magnetic core film may be disposed at any position of the non-metal material (such as, any one or more surfaces of the non-metal material, an interior of the non-metal material, and so on).
- the magnetic core film may be disposed on an upper or lower surface of a metal around the non-metal material.
- a material of the magnetic core film may be a ferrite or other magnetic core materials.
- the loop may further include a matching circuit for impedance matching and filtering.
- FIG. 2 is a diagram illustrating a matching circuit according to an embodiment of the present disclosure.
- the matching circuit includes a first capacitor C1 and a second capacitor C2 disposed between the two ends 4 and 5 of the conductive path and the two ports 6 and 7 of the driver, respectively, and a third capacitor C3 disposed between the first capacitor C1 and the second capacitor C2.
- the matching circuit may further include a fourth capacitor C4 connected to the third capacitor C3 in parallel.
- the matching circuit may further include a first inductance L1 and a second inductance L2 disposed between the two ends 4 and 5 of the conductive path and the first and second capacitors C1 and C2, respectively, in order to separate from an antenna signal to prevent mutual interference.
- a conductive path for radiating a magnetic field is disposed on a metal rear cover, two ends of the conductive path are electrically connected to two ports of a driver to form a loop such that a current signal converted based on magnetic strip data is output into the loop by the driver, and the loop will generate and transmit a magnetic signal indicating the magnetic strip data, thereby implementing the application of the MST in the mobile terminal of a metal material.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The present disclosure provides a mobile terminal, and the mobile terminal includes a metal rear cover and a driver disposed on a mainboard, wherein the metal rear cover includes a predetermined conductive path, of which two ends are electrically connected to two ports of the driver to form a loop, the driver outputs a current signal converted based on prestored magnetic strip data, and the loop generates and transmits a magnetic signal indicating the magnetic strip data.
Description
The present disclosure pertains to a technical field of the mobile communication, and more particularly, relates to a mobile terminal.
A magnetic strip payment card is a card containing a magnetic strip, such as a credit card, a bank card, a gift card or the like. The magnetic strip payment card implements storing data in a magnetic strip by changing a direction of magnetic particles in the magnetic strip. Magnetic information on the magnetic strip payment card is read by a reader, when the magnetic strip payment card performs swiping operation through a point-of-sale machine (POS machine). The reader performs data acquisition by collecting the magnetic information on the magnetic strip.
Magnetic strip data transmission technology (MST) is a technology of converting data to a corresponding magnetic field and radiating the magnetic field out to be read by a reader and to make the reader think that a swiping operation is being performed, and finally implementing a same function of swiping the magnetic strip payment card. At present, the MST has been implemented in a mobile terminal, and the current MST is generally applied in a mobile terminal with a non-metal rear cover. Coils for generating and radiating a magnetic field in the MST are generally disposed at a back part of the mobile terminal, which may be seen after dismounting the rear cover of the mobile terminal.
Regarding a mobile terminal of a metal material that is more popular at present, that is, most parts of an outer structure of the mobile terminal are formed of the metal material, since a metal has stronger capability of weakening a magnetic field, an application of the magnetic strip data transmission on the mobile terminal of the metal material is caused to have a certain limitation.
A purpose of the present disclosure aims to provide a mobile terminal to resolve a problem that an application of the magnetic strip data transmission on the mobile terminal of the metal material has a certain limitation.
One aspect of the present disclosure provides a mobile terminal, the mobile terminal including a metal rear cover and a driver disposed on a mainboard, wherein the metal rear cover includes a predetermined conductive path, of which two ends are electrically connected to two ports of the driver to form a loop, the driver outputs a current signal converted based on prestored magnetic strip data, and the loop generates and radiates a magnetic signal indicating the magnetic strip data.
Alternatively, an inductance value of the loop is within a predetermined range, and a resistance value of the loop is less than a predetermined value.
Alternatively, the metal rear cover includes at least two metal parts, the adjacent metal parts are fixedly connected by a non-metal material, and an electrical connection part for electrically connecting the adjacent metal parts is disposed between the adjacent metal parts.
Alternatively, a magnetic core film is disposed at the non-metal material between the adjacent metal parts.
Alternatively, a material of the magnetic core film is a ferrite.
Alternatively, two metal domes, which are electrically connected to two ports of the driver, respectively, are disposed on the mainboard, and the metal domes are in contact with the metal part forming the conductive path.
Alternatively, the loop further includes a matching circuit for impedance matching and filtering.
Alternatively, the matching circuit includes a first capacitor and a second capacitor disposed between two ends of the conductive path and the two ports of the driver, respectively, and a third capacitor disposed between the first capacitor and the second capacitor.
Alternatively, the matching circuit further includes a fourth capacitor connected to the third capacitor in parallel.
Alternatively, the matching circuit further includes a first inductance and a second inductance disposed between two ends of the conductive path and the first capacitor and second capacitor, respectively.
In the mobile terminal according to an embodiment of the present disclosure, a conductive path for radiating a magnetic field is disposed on a metal rear cover, two ends of the conductive path are electrically connected to two ports of a driver to form a loop such that a current signal converted based on magnetic strip data is output into the loop by the driver, and the loop will generate and transmit a magnetic signal indicating the magnetic strip data, thereby implementing the application of the MST in the mobile terminal of a metal material.
Other aspects and/or advantages of the present disclosure will be partially illustrated in the following description, and the rests will be clarified through further description or implementation of the present disclosure.
The above and other destinations, features and advantages of the present disclosure will become more apparent by describing in details with reference to the attached drawings, in which:
FIG. 1 is a structural diagram illustrating a mobile terminal according to an embodiment of the present disclosure; and
FIG. 2 is a diagram illustrating a matching circuit according to an embodiment of the present disclosure.
Example embodiments will now be described in details hereinafter with reference to the accompanying drawings.
FIG. 1 is a structural diagram illustrating a mobile terminal according to an embodiment of the present disclosure. A mobile terminal according to an embodiment of the present disclosure may be various electronic apparatuses, for example, a mobile communication terminal, a personal computer (PC), a tablet computer, a game machine, a digital multimedia player and the like.
As shown in FIG. 1, the mobile terminal according to an embodiment of the present disclosure includes a metal rear cover 1 and a driver 3 disposed on a mainboard 2. The metal rear cover 1 of the mobile terminal shown in FIG. 1 is not assembled on the main body of the mobile terminal.
The metal rear cover includes a predetermined conductive path thereon. Both ends 4 and 5 of the conductive path are electrically connected to two ports 6 and 7 of the driver 3 to form a loop. The driver 3 outputs a current signal converted based on prestored magnetic strip data. The loop generates and transmits a magnetic signal indicating the magnetic strip data, when the current signal output from the driver 3 passes through the loop.
The electrical connections between the two ends 4 and 5 of the conductive path and the two ports 6 and 7 of the driver 3 may be implemented by various manners. In the case where the metal rear cover 1 is detachable from the main body of the mobile terminal, the electrical connection between the two ends 4 and 5 of the conductive path and the two ports 6 and 7 of the driver 3 may be preferably a flexible electrical connection. Preferably, metal domes 8 and 9, which are electrically connected to the two ports 4 and 5 of the driver, respectively, are disposed on the mainboard, and when the metal rear cover 1 is assembled with the main body of the mobile terminal, the metal domes 8 and 9 are in contact with the two ends 4 and 5 of the conductive path on the metal rear cover 1 such that the two ends 4 and 5 of the conductive path are electrically connected to the two ports 6 and 7 of the driver 3.
The metal rear cover 1 may include at least two metal parts, the adjacent metal parts are fixedly connected by a non-metal material 10, and an electrical connection part 11 for electrically connecting the adjacent metal parts is disposed between the adjacent metal parts. The at least two metal parts form the conductive path through the electrical connection part 11, wherein the at least two metal parts are connected in series by the electrical connection part 11 in the conductive path. The two ends 4 and 5 of the conductive path are disposed in two metals having the furthest electrical distance among the at least two metal parts, respectively. Preferably, the at least two metal parts may be arranged side by side.
The current signal output by the driver 3 is converted based on the prestored magnetic strip data.
A magnetic field corresponding to the electrical signal will be generated around the loop when the current signal output by the driver 3 passes through the loop, and since the current signal is converted based on the magnetic strip data, the magnetic field may reflect the magnetic strip data. That is to say, the loop will generate and transmit the magnetic signal indicating the magnetic strip data. The magnetic signal will reflect the magnetic strip data. When the mobile terminal approaches a POS machine, the magnetic signal will be read by the POS machine, and the POS machine will convert the read magnetic signal to the magnetic strip data.
Since the magnetic signal of the magnetic strip payment card can be better simulated, an inductance value of the loop needs to be within a predetermined range. A resistance value of the loop needs to be less than a predetermined value.
Since the inductance value of the above conductive path is relatively small, for the inductance value of the loop, a magnetic core film may be disposed at the non-metal material between the above adjacent metal parts to improve the inductance value of the loop. The magnetic core film may be disposed at any position of the non-metal material (such as, any one or more surfaces of the non-metal material, an interior of the non-metal material, and so on). In addition, the magnetic core film may be disposed on an upper or lower surface of a metal around the non-metal material. A material of the magnetic core film may be a ferrite or other magnetic core materials.
In order to better generate and transmit the magnetic signal indicating the magnetic strip data, the loop may further include a matching circuit for impedance matching and filtering.
FIG. 2 is a diagram illustrating a matching circuit according to an embodiment of the present disclosure.
As shown in FIG. 2, the matching circuit includes a first capacitor C1 and a second capacitor C2 disposed between the two ends 4 and 5 of the conductive path and the two ports 6 and 7 of the driver, respectively, and a third capacitor C3 disposed between the first capacitor C1 and the second capacitor C2.
Furthermore, in order to facilitate debugging, the matching circuit may further include a fourth capacitor C4 connected to the third capacitor C3 in parallel.
In addition, in the case where an antenna of the mobile terminal also uses the metal rear cover as a radiator, the matching circuit may further include a first inductance L1 and a second inductance L2 disposed between the two ends 4 and 5 of the conductive path and the first and second capacitors C1 and C2, respectively, in order to separate from an antenna signal to prevent mutual interference.
In the mobile terminal according to an embodiment of the present disclosure, a conductive path for radiating a magnetic field is disposed on a metal rear cover, two ends of the conductive path are electrically connected to two ports of a driver to form a loop such that a current signal converted based on magnetic strip data is output into the loop by the driver, and the loop will generate and transmit a magnetic signal indicating the magnetic strip data, thereby implementing the application of the MST in the mobile terminal of a metal material.
Even if the present disclosure has been particularly shown and described with reference to exemplary embodiments thereof, it shall be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as defined by the following claims.
Claims (10)
- A mobile terminal, comprising a metal rear cover and a driver disposed on a mainboard, wherein the metal rear cover comprises a predetermined conductive path, of which two ends are electrically connected to two ports of the driver to form a loop, the driver outputs a current signal converted based on prestored magnetic strip data, and the loop generates and transmits a magnetic signal indicating the magnetic strip data.
- The mobile terminal of claim 1, which is characterized in that an inductance value of the loop is within a predetermined range, and a resistance value of the loop is less than a predetermined value.
- The mobile terminal of claim 1, which is characterized in that the metal rear cover comprises at least two metal parts, adjacent metal parts are fixedly connected by a non-metal material, and an electrical connection part for electrically connecting the adjacent metal parts is disposed between the adjacent metal parts.
- The mobile terminal of claim 3, which is characterized in that a magnetic core film is disposed at the non-metal material between the adjacent metal parts.
- The mobile terminal of claim 4, which is characterized in that a material of the magnetic core film is a ferrite.
- The mobile terminal of claim 1, which is characterized in that two metal domes, which are electrically connected to two ports of the driver, respectively, are disposed on the mainboard, and the metal domes are in contact with the metal part forming the conductive path.
- The mobile terminal of claim 1, which is characterized in that the loop further comprises a matching circuit for impedance matching and filtering.
- The mobile terminal of claim 7, which is characterized in that the matching circuit comprises a first capacitor and a second capacitor disposed between two ends of the conductive path and two ports of the driver, respectively, and a third capacitor disposed between the first capacitor and the second capacitor.
- The mobile terminal of claim 8, which is characterized in that the matching circuit further comprises a fourth capacitor connected to the third capacitor in parallel.
- The mobile terminal of claim 9, which is characterized in that the matching circuit further comprises a first inductance and a second inductance disposed between two ends of the conductive path and the first capacitor and second capacitor, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2018/013884 WO2020101059A1 (en) | 2018-11-14 | 2018-11-14 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2018/013884 WO2020101059A1 (en) | 2018-11-14 | 2018-11-14 | Mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020101059A1 true WO2020101059A1 (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2018/013884 WO2020101059A1 (en) | 2018-11-14 | 2018-11-14 | Mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2020101059A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101485569B1 (en) * | 2014-01-22 | 2015-01-22 | 광운대학교 산학협력단 | Near Field Communication antenna for mobile handset with metallic case |
| KR20150098111A (en) * | 2014-02-19 | 2015-08-27 | 삼성전자주식회사 | Mobile payment system and method for supporting mobile payment |
| US20160028446A1 (en) * | 2014-07-28 | 2016-01-28 | Samsung Electronics Co., Ltd. | Data transceiver device and receiving method for near field communication |
| US20170019510A1 (en) * | 2013-08-14 | 2017-01-19 | Samsung Electro-Mechanics Co., Ltd. | Cover for electronic device, antenna assembly, electronic device, and method for manfuacturing the same |
| KR20170038780A (en) * | 2015-07-14 | 2017-04-07 | 삼성전자주식회사 | Electronic device and payment method using the same |
-
2018
- 2018-11-14 WO PCT/KR2018/013884 patent/WO2020101059A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170019510A1 (en) * | 2013-08-14 | 2017-01-19 | Samsung Electro-Mechanics Co., Ltd. | Cover for electronic device, antenna assembly, electronic device, and method for manfuacturing the same |
| KR101485569B1 (en) * | 2014-01-22 | 2015-01-22 | 광운대학교 산학협력단 | Near Field Communication antenna for mobile handset with metallic case |
| KR20150098111A (en) * | 2014-02-19 | 2015-08-27 | 삼성전자주식회사 | Mobile payment system and method for supporting mobile payment |
| US20160028446A1 (en) * | 2014-07-28 | 2016-01-28 | Samsung Electronics Co., Ltd. | Data transceiver device and receiving method for near field communication |
| KR20170038780A (en) * | 2015-07-14 | 2017-04-07 | 삼성전자주식회사 | Electronic device and payment method using the same |
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