KR20180041047A - Apparatus and method for emitting magnetic signal using plurality of frequencies - Google Patents

Abstract

According to various embodiments of the present invention, an electronic device comprises: a memory; a coil; a waveform generation circuit; and a processor. The processor may be set to: obtain card information stored in the memory; apply, to the coil, a first voltage or a first current having a first frequency and having a first waveform, in which the instantaneous slope of an amplitude with respect to time changes in at least a part of a period corresponding to a first part of the card information, by using a waveform generation circuit when the first part of the card information is a first value; and apply, to the coil, a second voltage or a second current having a second frequency which is two times of the first frequency and having a second waveform, in which the instantaneous slope changes in at least a part of a period corresponding to a second part of the card information, by using the waveform generation circuit when the second part of the card information is a second value. In addition, various embodiments are possible. According to the present invention, by applying power of a relatively small-sized waveform to the coil, the amount of power used for magnetic signal emission can be reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method and apparatus for magnetic signal emission using a plurality of frequencies,

Various embodiments of the present invention are directed to a method and apparatus for magnetic signal emission using a plurality of frequencies.

A magnetic stripe payment card contains magnetic material. On the other hand, a POS (Point of Sale) terminal for approval using a magnetic stripe payment card may include a read header for detecting a magnetic field change. After the user inserts the magnetic stripe payment card into the read header of the POS terminal, the user can move it. The magnetic field can be changed by the movement of the payment card, and the POS terminal can detect the magnetic field change. The POS terminal can acquire settlement data by changing the magnetic field.

On the other hand, an electronic device using MST (magnetic secured transfer or magnetic stripe transmission) communication can generate and emit a changed magnetic field corresponding to the movement of the magnetic material. The changed magnetic field can be detected at the POS terminal. Accordingly, an electronic device capable of transmitting settlement data to an existing POS terminal has been provided.

[0003] In an electronic device using conventional MST communication, a square wave power is applied to a coil to generate a magnetic field. In order for the POS terminal to detect the magnetic field, the generation of a relatively large magnitude magnetic field must be assured. For the generation of a relatively large magnitude magnetic field, a relatively large magnitude of power must be applied to the coil. Accordingly, the electronic device consumes a relatively large amount of power in order to perform the MST communication. Accordingly, there is a problem that stable execution of electronic settlement can not be ensured when the remaining power amount of the electronic apparatus is relatively low.

Various embodiments of the present invention have been devised to solve the above-mentioned problems or other problems, and an electronic device and its control method according to various embodiments of the present invention can be realized by applying power of a relatively small- It is possible to reduce the amount of power used for magnetic signal emission.

An electronic device according to various embodiments of the present invention includes a memory, a coil, a waveform generation circuit, and a processor, wherein the processor acquires card information stored in the memory, A first voltage having a first frequency and having a first waveform whose instantaneous slope of amplitude with respect to time is varied in at least a portion of a period corresponding to the first portion, 1 < / RTI > current to the coil, and when the second portion of the card information is a second value, using the waveform generation circuit to have a second frequency that is twice the first frequency, And to apply a second voltage or a second current having a second waveform that changes in at least a portion of a period corresponding to the second portion to the coil.

A method of controlling an electronic device including a coil according to various embodiments of the present invention includes the steps of obtaining stored card information, having a first frequency when the first portion of the card information is a first value, Applying a first voltage or a first current to the coil having a first waveform whose instantaneous slope of amplitude is varied in at least a portion of a period corresponding to the first portion, A second voltage having a second waveform that has a second frequency that is twice that of the first frequency and whose instantaneous slope changes in at least a portion of a period corresponding to the second portion using the waveform generation circuit, Or applying a second current to the coil.

An electronic device according to various embodiments of the present invention includes a memory, a coil, a waveform generation circuit, and a processor, wherein the processor acquires card information stored in the memory, 1 value, using the waveform generation circuit, a first voltage or a first current having a first waveform and having a first waveform whose instantaneous slope of amplitude with respect to time is changed during a period corresponding to the first portion, And the second portion of the card information is a second value, the waveform generating circuit is used to have a second frequency higher than the first frequency, and the instantaneous slope corresponds to the second portion And to apply a second voltage or a second current having a second waveform that changes during a period of time to the coil.

An electronic device and a control method thereof capable of reducing the amount of power used for data transmission can be provided by applying a relatively small-sized waveform power to the coil according to various embodiments of the present invention.

1 shows a block diagram of an electronic device and network according to various embodiments of the present invention.
2 is a block diagram of an electronic device in accordance with various embodiments of the present invention.
3 is a block diagram of a program module in accordance with various embodiments of the present invention.
4A shows a conceptual diagram of an electronic apparatus and a data receiving apparatus according to various embodiments of the present invention.
4B shows a conceptual diagram for illustrating settlement according to a stripe of a credit card for comparison with various embodiments of the present invention.
Fig. 5 shows a conceptual diagram of various waveforms corresponding to stripes of a credit card.
Figure 6 shows a block diagram of a data transmission circuit in accordance with various embodiments of the present invention.
7 shows a conceptual diagram for explaining a signal by application of a square wave for comparison with various embodiments of the present invention.
8A and 8B show a conceptual diagram for explaining a waveform of a square wave or a trapezoidal shape.
9A-9C show graphs showing waveforms of voltage or current applied to the primary coil of an electronic device in accordance with various embodiments of the present invention.
10A shows a circuit diagram for describing a circuit of an electronic device capable of generating a sinusoidal current according to various embodiments of the present invention.
10B shows a conceptual diagram for explaining application of a current according to various embodiments of the present invention.
Figures 10c and 10d show circuit diagrams of an electronic device according to various embodiments of the present invention.
11 shows a flowchart for explaining a control method of an electronic device according to various embodiments of the present invention.
12 shows a conceptual diagram of an electronic device according to various embodiments of the present invention.
Figure 13 shows a flowchart for illustrating a method of controlling an electronic device according to various embodiments of the present invention.
14 shows a block diagram of an electronic device for generating a sinusoidal magnetic field in accordance with various embodiments of the present invention.
15A-15C illustrate current or voltage waveforms applied to various types of primary coils according to various embodiments of the present invention.
Figure 16 shows a flowchart for illustrating a method of controlling an electronic device according to various embodiments of the present invention.
17 shows a flowchart for explaining a control method of an electronic device according to various embodiments of the present invention.

Hereinafter, various embodiments of the present document will be described with reference to the accompanying drawings. It is to be understood that the embodiments and terminologies used herein are not intended to limit the invention to the particular embodiments described, but to include various modifications, equivalents, and / or alternatives of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar components. The singular expressions may include plural expressions unless the context clearly dictates otherwise. In this document, the expressions "A or B" or "at least one of A and / or B" and the like may include all possible combinations of the items listed together. Expressions such as " first, "" second," " first, "or" second, " But is not limited to those components. When it is mentioned that some (e.g., first) component is "(functionally or communicatively) connected" or "connected" to another (second) component, May be connected directly to the component, or may be connected through another component (e.g., a third component).

In this document, the term " configured to (or configured) to "as used herein is intended to encompass all types of hardware, software, , "" Made to "," can do ", or" designed to ". In some situations, the expression "a device configured to" may mean that the device can "do " with other devices or components. For example, a processor configured (or configured) to perform the phrases "A, B, and C" may be implemented by executing one or more software programs stored in a memory device or a dedicated processor (e.g., an embedded processor) , And a general purpose processor (e.g., a CPU or an application processor) capable of performing the corresponding operations.

Electronic devices in accordance with various embodiments of the present document may be used in various applications such as, for example, smart phones, tablet PCs, mobile phones, videophones, electronic book readers, desktop PCs, laptop PCs, netbook computers, workstations, a portable multimedia player, an MP3 player, a medical device, a camera, or a wearable device. Wearable devices may be of the type of accessories (eg, watches, rings, bracelets, braces, necklaces, glasses, contact lenses or head-mounted-devices (HMD) (E.g., a skin pad or tattoo), or a bio-implantable circuit. In some embodiments, the electronic device may be, for example, a television, a digital video disk (Such as Samsung HomeSync ^TM , Apple TV ^TM , or Google TV ^TM ), which are used in home appliances such as home appliances, audio, refrigerators, air conditioners, vacuum cleaners, ovens, microwave ovens, washing machines, air cleaners, set top boxes, home automation control panels, , A game console (e.g., Xbox ^TM , PlayStation ^TM ), an electronic dictionary, an electronic key, a camcorder, or an electronic photo frame.

In an alternative embodiment, the electronic device may be any of a variety of medical devices (e.g., various portable medical measurement devices such as a blood glucose meter, a heart rate meter, a blood pressure meter, or a body temperature meter), magnetic resonance angiography (MRA) A navigation system, a global navigation satellite system (GNSS), an event data recorder (EDR), a flight data recorder (FDR), an automobile infotainment device, a marine electronic equipment (For example, marine navigation systems, gyro compasses, etc.), avionics, security devices, head units for vehicles, industrial or domestic robots, drones, ATMs at financial institutions, of at least one of the following types of devices: a light bulb, a fire detector, a fire alarm, a thermostat, a streetlight, a toaster, a fitness device, a hot water tank, a heater, a boiler, . According to some embodiments, the electronic device may be a piece of furniture, a building / structure or part of an automobile, an electronic board, an electronic signature receiving device, a projector, or various measuring devices (e.g., Gas, or radio wave measuring instruments, etc.). In various embodiments, the electronic device is flexible or may be a combination of two or more of the various devices described above. The electronic device according to the embodiment of the present document is not limited to the above-described devices. In this document, the term user may refer to a person using an electronic device or a device using an electronic device (e.g., an artificial intelligence electronic device).

Referring to Figure 1, in various embodiments, an electronic device 101 in a network environment 100 is described. The electronic device 101 may include a bus 110, a processor 120, a memory 130, an input / output interface 150, a display 160, and a communication interface 170. In some embodiments, the electronic device 101 may omit at least one of the components or additionally include other components. The bus 110 may include circuitry to connect the components 110-170 to one another and to communicate communications (e.g., control messages or data) between the components. Processor 120 may include one or more of a central processing unit, an application processor, or a communications processor (CP). The processor 120 may perform computations or data processing related to, for example, control and / or communication of at least one other component of the electronic device 101.

Memory 130 may include volatile and / or non-volatile memory. Memory 130 may store instructions or data related to at least one other component of electronic device 101, for example. According to one embodiment, the memory 130 may store software and / or programs 140. The program 140 may include, for example, a kernel 141, a middleware 143, an application programming interface (API) 145, and / or an application program . At least some of the kernel 141, middleware 143, or API 145 may be referred to as an operating system. The kernel 141 may include system resources used to execute an operation or function implemented in other programs (e.g., middleware 143, API 145, or application program 147) (E.g., bus 110, processor 120, or memory 130). The kernel 141 also provides an interface to control or manage system resources by accessing individual components of the electronic device 101 in the middleware 143, API 145, or application program 147 .

The middleware 143 can perform an intermediary role such that the API 145 or the application program 147 can communicate with the kernel 141 to exchange data. In addition, the middleware 143 may process one or more task requests received from the application program 147 according to the priority order. For example, middleware 143 may use system resources (e.g., bus 110, processor 120, or memory 130, etc.) of electronic device 101 in at least one of application programs 147 Prioritize, and process the one or more task requests. The API 145 is an interface for the application 147 to control the functions provided by the kernel 141 or the middleware 143. The API 145 is an interface for controlling the functions provided by the application 141. For example, An interface or a function (e.g., a command). Output interface 150 may be configured to communicate commands or data entered from a user or other external device to another component (s) of the electronic device 101, or to another component (s) of the electronic device 101 ) To the user or other external device.

The display 160 may include a display such as, for example, a liquid crystal display (LCD), a light emitting diode (LED) display, an organic light emitting diode (OLED) display, or a microelectromechanical system (MEMS) display, or an electronic paper display . Display 160 may display various content (e.g., text, images, video, icons, and / or symbols, etc.) to a user, for example. Display 160 may include a touch screen and may receive a touch, gesture, proximity, or hovering input using, for example, an electronic pen or a portion of the user's body. The communication interface 170 establishes communication between the electronic device 101 and an external device (e.g., the first external electronic device 102, the second external electronic device 104, or the server 106) . For example, communication interface 170 may be connected to network 162 via wireless or wired communication to communicate with an external device (e.g., second external electronic device 104 or server 106).

The wireless communication may include, for example, LTE, LTE-A (LTE Advance), code division multiple access (CDMA), wideband CDMA (WCDMA), universal mobile telecommunications system (UMTS), wireless broadband (WiBro) System for Mobile Communications), and the like. According to one embodiment, the wireless communication may be wireless communication, such as wireless fidelity (WiFi), Bluetooth, Bluetooth low power (BLE), Zigbee, NFC, Magnetic Secure Transmission, Frequency (RF), or body area network (BAN). According to one example, wireless communication may include GNSS. GNSS may be, for example, Global Positioning System (GPS), Global Navigation Satellite System (Glonass), Beidou Navigation Satellite System (Beidou) or Galileo, the European global satellite-based navigation system. Hereinafter, in this document, " GPS " can be used interchangeably with " GNSS ". The wired communication may include, for example, at least one of a universal serial bus (USB), a high definition multimedia interface (HDMI), a recommended standard 232 (RS-232), a power line communication or a plain old telephone service have. Network 162 may include at least one of a telecommunications network, e.g., a computer network (e.g., LAN or WAN), the Internet, or a telephone network.

Each of the first and second external electronic devices 102, 104 may be the same or a different kind of device as the electronic device 101. According to various embodiments, all or a portion of the operations performed in the electronic device 101 may be performed in one or more other electronic devices (e.g., electronic devices 102, 104, or server 106). According to the present invention, when electronic device 101 is to perform a function or service automatically or on demand, electronic device 101 may perform at least some functions associated therewith instead of, or in addition to, (E.g., electronic device 102, 104, or server 106) may request the other device (e.g., electronic device 102, 104, or server 106) Perform additional functions, and forward the results to the electronic device 101. The electronic device 101 may process the received results as is or additionally to provide the requested functionality or services. For example, Cloud computing, distributed computing, or client-server computing techniques can be used.

In various embodiments of the present invention, the processor 120 obtains card information stored in the memory 130 and, if the first portion of the card information is a first value, Applying a first voltage or a first current having a first frequency to the coil and having a first waveform whose instantaneous slope of amplitude with respect to time is changed in at least a portion of a period corresponding to the first portion, A second waveform having a second frequency which is twice the first frequency and whose instantaneous slope is changed in at least a part of a period corresponding to the second part when the second part is a second value; Or to apply a second voltage or a second current to the coil.

In various embodiments of the present invention, the processor 120 obtains card information stored in the memory 130 and, if the first portion of the card information is a first value, Applying a first voltage or a first current having a first waveform that has a frequency and an instantaneous slope of amplitude with respect to time that is changed during a period corresponding to the first portion to the coil, A second voltage having a second waveform that has a second frequency higher than the first frequency and whose instantaneous slope is changed during a period corresponding to the second portion using the waveform generation circuit; 2 < / RTI > current to the coil.

In various embodiments of the present invention, the waveform generation circuit includes a plurality of switches coupled to the coil, wherein the processor (120) is configured to generate the first voltage, the first current, And to control an on state or an off state for each of the plurality of switches to generate a corresponding one of the second currents.

In the various embodiments of the present invention, the plurality of switches may include: a voltage source providing a specified voltage; a first switch disposed between one end of the coil; a second switch disposed between the other end of the voltage source and the coil; A third switch disposed between the one end of the coil and the ground terminal, and a fourth switch disposed between the other end of the coil and the ground terminal.

In various embodiments of the present invention, the processor 120 periodically turns on or off the first switch and the fourth switch to apply a corresponding one of the first current and the first voltage to the coil Off and maintains said first switch and said fourth switch off to apply a corresponding one of said second current or said second voltage to said coil, And may be set to control the waveform generation circuit to switch the switch periodically on or off.

In various embodiments of the present invention, the processor 120 may be configured to change the period at which the first switch and the fourth switch are turned on.

In various embodiments of the present invention, the processor 120 may be configured to change the period at which the second switch and the third switch are turned on.

In various embodiments of the invention, the processor (120) The waveform generating circuit may be used to generate a sine wave, a gauge wave, a triangle wave, or a pulse wave as the first waveform or the second waveform.

In various embodiments of the present invention, the processor 120 may select either a sine wave, a gauge wave, a triangle wave, or a pulsed wave based on the remaining power of the battery of the electronic device 101, Or as the second waveform.

In various embodiments of the present invention, the waveform generation circuit includes a drive circuit for rotating the coil, an N pole magnet disposed in one direction of the coil, and an S pole magnet arranged in the other direction of the coil can do.

In various embodiments of the present invention, the processor 120 rotates the coil at a first speed using the drive circuit to generate the first voltage or the first current, Or to rotate the coil at a second speed using the drive circuit to generate the second current.

In various embodiments of the present invention, the processor may be configured to use the waveform generation circuit to generate the second waveform such that the second frequency is an integer multiple of the first frequency.

2 is a block diagram of an electronic device 201 according to various embodiments. The electronic device 201 may include all or part of the electronic device 101 shown in Fig. 1, for example. The electronic device 201 may include one or more processors (e.g., AP) 210, a communications module 220, a subscriber identification module 224, a memory 230, a sensor module 240, an input device 250, An interface 270, an audio module 280, a camera module 291, a power management module 295, a battery 296, an indicator 297, and a motor 298. The processor 290, The processor 210 may be, for example, an operating system or an application program to control a plurality of hardware or software components coupled to the processor 210, and to perform various data processing and operations. ) May be implemented, for example, as a system on chip (SoC). According to one embodiment, the processor 210 may further include a graphics processing unit (GPU) and / or an image signal processor. The cellular module 210 may include at least some of the components shown in Figure 2 (e.g., the cellular module 221) The processor 210 other components: processing by loading the command or data received from at least one (e.g., non-volatile memory) in the volatile memory) and can store the result data into the nonvolatile memory.

May have the same or similar configuration as communication module 220 (e.g., communication interface 170). The communication module 220 may include, for example, a cellular module 221, a WiFi module 223, a Bluetooth module 225, a GNSS module 227, an NFC module 228 and an RF module 229 have. The cellular module 221 can provide voice calls, video calls, text services, or Internet services, for example, over a communication network. According to one embodiment, the cellular module 221 may utilize a subscriber identity module (e.g., a SIM card) 224 to perform the identification and authentication of the electronic device 201 within the communication network. According to one embodiment, the cellular module 221 may perform at least some of the functions that the processor 210 may provide. According to one embodiment, the cellular module 221 may comprise a communications processor (CP). At least some (e.g., two or more) of the cellular module 221, the WiFi module 223, the Bluetooth module 225, the GNSS module 227, or the NFC module 228, according to some embodiments, (IC) or an IC package. The RF module 229 can, for example, send and receive communication signals (e.g., RF signals). The RF module 229 may include, for example, a transceiver, a power amplifier module (PAM), a frequency filter, a low noise amplifier (LNA), or an antenna. According to another embodiment, at least one of the cellular module 221, the WiFi module 223, the Bluetooth module 225, the GNSS module 227, or the NFC module 228 transmits / receives an RF signal through a separate RF module . The subscriber identification module 224 may include, for example, a card or an embedded SIM containing a subscriber identity module, and may include unique identification information (e.g., ICCID) or subscriber information (e.g., IMSI (international mobile subscriber identity).

Memory 230 (e.g., memory 130) may include, for example, internal memory 232 or external memory 234. Volatile memory (e.g., a DRAM, an SRAM, or an SDRAM), a non-volatile memory (e.g., an OTPROM, a PROM, an EPROM, an EEPROM, a mask ROM, a flash ROM , A flash memory, a hard drive, or a solid state drive (SSD). The external memory 234 may be a flash drive, for example, a compact flash (CF) ), Micro-SD, Mini-SD, extreme digital (xD), multi-media card (MMC), or memory stick, etc. External memory 234 may communicate with electronic device 201, Or may be physically connected.

The sensor module 240 may, for example, measure a physical quantity or sense the operating state of the electronic device 201 to convert the measured or sensed information into an electrical signal. The sensor module 240 includes a gesture sensor 240A, a gyro sensor 240B, an air pressure sensor 240C, a magnetic sensor 240D, an acceleration sensor 240E, a grip sensor 240F, A temperature sensor 240G, a UV sensor 240G, a color sensor 240H (e.g., an RGB (red, green, blue) sensor), a living body sensor 240I, And a sensor 240M. Additionally or alternatively, the sensor module 240 may be configured to perform various functions such as, for example, an e-nose sensor, an electromyography (EMG) sensor, an electroencephalograph (EEG) sensor, an electrocardiogram An infrared (IR) sensor, an iris sensor, and / or a fingerprint sensor. The sensor module 240 may further include a control circuit for controlling at least one or more sensors belonging to the sensor module 240. In some embodiments, the electronic device 201 further includes a processor configured to control the sensor module 240, either as part of the processor 210 or separately, so that while the processor 210 is in a sleep state, The sensor module 240 can be controlled.

The input device 250 may include, for example, a touch panel 252, a (digital) pen sensor 254, a key 256, or an ultrasonic input device 258. As the touch panel 252, for example, at least one of an electrostatic type, a pressure sensitive type, an infrared type, and an ultrasonic type can be used. Further, the touch panel 252 may further include a control circuit. The touch panel 252 may further include a tactile layer to provide a tactile response to the user. (Digital) pen sensor 254 may be part of, for example, a touch panel or may include a separate recognition sheet. Key 256 may include, for example, a physical button, an optical key, or a keypad. The ultrasonic input device 258 can sense the ultrasonic wave generated by the input tool through the microphone (e.g., the microphone 288) and confirm the data corresponding to the ultrasonic wave detected.

Display 260 (e.g., display 160) may include panel 262, hologram device 264, projector 266, and / or control circuitry for controlling them. The panel 262 may be embodied, for example, flexibly, transparently, or wearably. The panel 262 may comprise a touch panel 252 and one or more modules. According to one embodiment, the panel 262 may include a pressure sensor (or force sensor) capable of measuring the intensity of the pressure on the user's touch. The pressure sensor may be integrated with the touch panel 252 or may be implemented by one or more sensors separate from the touch panel 252. The hologram device 264 can display a stereoscopic image in the air using interference of light. The projector 266 can display an image by projecting light onto a screen. The screen may be located, for example, inside or outside the electronic device 201. The interface 270 may include, for example, an HDMI 272, a USB 274, an optical interface 276, or a D-sub (D-subminiature) 278. The interface 270 may, for example, be included in the communication interface 170 shown in FIG. Additionally or alternatively, the interface 270 may include, for example, a mobile high-definition link (MHL) interface, an SD card / multi-media card (MMC) interface, or an infrared data association have.

The audio module 280 can, for example, convert sound and electrical signals in both directions. At least some of the components of the audio module 280 may be included, for example, in the input / output interface 145 shown in FIG. The audio module 280 may process sound information input or output through, for example, a speaker 282, a receiver 284, an earphone 286, a microphone 288, or the like. The camera module 291 is, for example, a device capable of capturing still images and moving images, and according to one embodiment, one or more image sensors (e.g., a front sensor or a rear sensor), a lens, an image signal processor (ISP) , Or flash (e.g., an LED or xenon lamp, etc.). The power management module 295 can, for example, manage the power of the electronic device 201. [ According to one embodiment, the power management module 295 may include a power management integrated circuit (PMIC), a charging IC, or a battery or fuel gauge. The PMIC may have a wired and / or wireless charging scheme. The wireless charging scheme may include, for example, a magnetic resonance scheme, a magnetic induction scheme, or an electromagnetic wave scheme, and may further include an additional circuit for wireless charging, for example, a coil loop, a resonant circuit, have. The battery gauge can measure, for example, the remaining power of the battery 296, the voltage during charging, the current, or the temperature. The battery 296 may include, for example, a rechargeable battery and / or a solar cell.

The indicator 297 may indicate a particular state of the electronic device 201 or a portion thereof (e.g., processor 210), e.g., a boot state, a message state, or a state of charge. The motor 298 can convert the electrical signal to mechanical vibration, and can generate vibration, haptic effects, and the like. Electronic device 201 is, for example, DMB Mobile TV-enabled devices capable of handling media data in accordance with standards such as (digital multimedia broadcasting), DVB (digital video broadcasting), or MediaFLO (mediaFlo ^TM) (for example, : GPU). Each of the components described in this document may be composed of one or more components, and the name of the component may be changed according to the type of the electronic device. In various embodiments, an electronic device (e. G., Electronic device 201) may have some components omitted, further include additional components, or some of the components may be combined into one entity, The functions of the preceding components can be performed in the same manner.

3 is a block diagram of a program module according to various embodiments. According to one embodiment, program module 310 (e.g., program 140) includes an operating system that controls resources associated with an electronic device (e.g., electronic device 101) and / E.g., an application program 147). The operating system may include, for example, Android ^TM , iOS ^TM , Windows ^TM , Symbian ^TM , Tizen ^TM , or Bada ^TM . 3, program module 310 includes a kernel 320 (e.g., kernel 141), middleware 330 (e.g., middleware 143), API 360 (e.g., API 145) ), And / or an application 370 (e.g., an application program 147). At least a portion of the program module 310 may be preloaded on an electronic device, 102 and 104, a server 106, and the like).

The kernel 320 may include, for example, a system resource manager 321 and / or a device driver 323. The system resource manager 321 can perform control, allocation, or recovery of system resources. According to one embodiment, the system resource manager 321 may include a process manager, a memory manager, or a file system manager. The device driver 323 may include, for example, a display driver, a camera driver, a Bluetooth driver, a shared memory driver, a USB driver, a keypad driver, a WiFi driver, an audio driver, or an inter-process communication . The middleware 330 may provide various functions through the API 360, for example, to provide functions that are commonly needed by the application 370 or allow the application 370 to use limited system resources within the electronic device. Application 370 as shown in FIG. According to one embodiment, the middleware 330 includes a runtime library 335, an application manager 341, a window manager 342, a multimedia manager 343, a resource manager 344, a power manager 345, a database manager The location manager 350, the graphic manager 351, or the security manager 352. In this case, the service manager 341 may be a service manager, a service manager, a service manager, a package manager 346, a package manager 347, a connectivity manager 348, a notification manager 349,

The runtime library 335 may include, for example, a library module that the compiler uses to add new functionality via a programming language while the application 370 is executing. The runtime library 335 may perform input / output management, memory management, or arithmetic function processing. The application manager 341 can manage the life cycle of the application 370, for example. The window manager 342 can manage GUI resources used in the screen. The multimedia manager 343 can recognize the format required for reproducing the media files and can perform encoding or decoding of the media file using a codec according to the format. The resource manager 344 can manage the source code of the application 370 or the space of the memory. The power manager 345 may, for example, manage the capacity or power of the battery and provide the power information necessary for operation of the electronic device. According to one embodiment, the power manager 345 may interoperate with a basic input / output system (BIOS). The database manager 346 may create, retrieve, or modify the database to be used in the application 370, for example. The package manager 347 can manage installation or update of an application distributed in the form of a package file.

The connectivity manager 348 may, for example, manage the wireless connection. The notification manager 349 may provide the user with an event such as, for example, an arrival message, an appointment, a proximity notification, and the like. The location manager 350 can manage the location information of the electronic device, for example. The graphic manager 351 may, for example, manage the graphical effects to be presented to the user or a user interface associated therewith. Security manager 352 may provide, for example, system security or user authentication. According to one embodiment, the middleware 330 may include a telephony manager for managing the voice or video call function of the electronic device, or a middleware module capable of forming a combination of the functions of the above-described components . According to one embodiment, the middleware 330 may provide a module specialized for each type of operating system. Middleware 330 may dynamically delete some existing components or add new ones. The API 360 may be provided in a different configuration depending on the operating system, for example, as a set of API programming functions. For example, for Android or iOS, you can provide a single API set for each platform, and for Tizen, you can provide two or more API sets for each platform.

The application 370 may include a home 371, a dialer 372, an SMS / MMS 373, an instant message 374, a browser 375, a camera 376, an alarm 377, Contact 378, voice dial 379, email 380, calendar 381, media player 382, album 383, watch 384, healthcare (e.g., measuring exercise or blood glucose) , Or environmental information (e.g., air pressure, humidity, or temperature information) application. According to one embodiment, the application 370 may include an information exchange application capable of supporting the exchange of information between the electronic device and the external electronic device. The information exchange application may include, for example, a notification relay application for communicating specific information to an external electronic device, or a device management application for managing an external electronic device. For example, the notification delivery application can transmit notification information generated in another application of the electronic device to the external electronic device, or receive notification information from the external electronic device and provide the notification information to the user. The device management application may, for example, control the turn-on / turn-off or brightness (or resolution) of an external electronic device in communication with the electronic device (e.g., the external electronic device itself Control), or install, delete, or update an application running on an external electronic device. According to one embodiment, the application 370 may include an application (e.g., a healthcare application of a mobile medical device) designated according to the attributes of the external electronic device. According to one embodiment, the application 370 may include an application received from an external electronic device. At least some of the program modules 310 may be implemented (e.g., executed) in software, firmware, hardware (e.g., processor 210), or a combination of at least two of the same, Program, routine, instruction set or process.

As used herein, the term "module " includes units comprised of hardware, software, or firmware and may be used interchangeably with terms such as, for example, logic, logic blocks, components, or circuits. A "module" may be an integrally constructed component or a minimum unit or part thereof that performs one or more functions. "Module" may be implemented either mechanically or electronically, for example, by application-specific integrated circuit (ASIC) chips, field-programmable gate arrays (FPGAs) And may include programmable logic devices. At least some of the devices (e.g., modules or functions thereof) or methods (e.g., operations) according to various embodiments may be stored in a computer readable storage medium (e.g., memory 130) . ≪ / RTI > When the instruction is executed by a processor (e.g., processor 120), the processor may perform a function corresponding to the instruction. The computer-readable recording medium may be a hard disk, a floppy disk, a magnetic medium such as a magnetic tape, an optical recording medium such as a CD-ROM, a DVD, a magnetic-optical medium such as a floppy disk, The instructions may include code that is generated by the compiler or code that may be executed by the interpreter. Modules or program modules according to various embodiments may include at least one or more of the components described above Operations that are performed by modules, program modules, or other components, in accordance with various embodiments, may be performed in a sequential, parallel, iterative, or heuristic manner, or at least in part Some operations may be executed in a different order, omitted, or other operations may be added.

4A shows a conceptual diagram of an electronic apparatus and a data receiving apparatus according to various embodiments of the present invention.

The electronic device 101 can execute the electronic payment application and display the execution screen 410 of the electronic payment application on the display. Hereinafter, the expression in which the electronic device 101 performs a specific operation may mean that the processor 120 included in the electronic device 101 performs a specific operation. Alternatively, the expression that the electronic device 101 performs a particular operation may mean that the processor 120 included in the electronic device 101 controls other hardware to perform a specific operation. In various embodiments of the present invention, the execution screen 410 of the electronic payment application may include an input window 411 where a password can be entered. Although not shown, the electronic device 101 may display a keyboard including a plurality of character keys on a partial area of the display. The user can input the password by touching the key of the keyboard, and the electronic device 101 can acquire the key corresponding to the point where the touch is detected as the password inputted by the user. The electronic device 101 can display a character for security in the input window 411. Accordingly, the user can grasp whether or not the password is input. The electronic device 101 can compare the acquired password with the pre-stored password. The electronic device 101 can emit a magnetic signal corresponding to the settlement data when the previously stored password matches the acquired password.

4A, although the electronic device 101 is shown as transmitting payment data based on the password entered by the user, this is merely an example, and the electronic device 101 is not limited to fingerprint recognition or iris recognition The authentication process may be performed using various user biometric information of the user. Alternatively, the electronic device 101 may perform a multi-factor authentication procedure using both user input and user biometric information, and may release a magnetic signal when authentication is completed.

The electronic device 101 may generate and emit a magnetic field 412 that varies with the time corresponding to the payment data. Here, the magnetic field 412, which changes with time, may be named as a magnetic signal. The electronic device 101 may include a coil capable of generating an induced magnetic field, and by applying a current corresponding to the payment data to the coil, a magnetic field corresponding to the payment data can be generated and discharged. The above-described magnetic field generating process will be described later in more detail. The data receiving apparatus 420 may include a read header 421. [ The read header 421 may include a coil capable of generating an induced electromotive force from a surrounding magnetic field. In the coil included in the read header 421, an induced electromotive force can be generated by the magnetic field 412. The data receiving apparatus 420 can process and interpret the induced electromotive force and can obtain the payment data stored in the electronic device 101 using the analysis result. The data receiving apparatus 420 can determine whether or not the payment data matches the previously stored payment data and can determine whether or not to approve the payment based on the coincidence. Alternatively, the data receiving apparatus 420 may transmit the interpreted payment data to another external electronic apparatus, and may transmit the settlement data previously stored by another external electronic apparatus and the payment data received from the data receiving apparatus 420 , And may decide whether or not to approve the settlement based on the coincidence. In this case, another external electronic device can proceed to settle the settlement with the data receiving device 420 and return the settlement approval to the data receiving device 420. [ The data receiving apparatus 420 can output a receipt at the time of payment approval using the reply result, and can output the payment failure at the time of payment failure.

4B is a conceptual diagram for explaining payment according to a stripe of a credit card for comparison with the present invention. The data receiving apparatus 420 of FIG. 4B may be the same as FIG. 4A. In FIG. 4B, the credit card 430 may include a magnetic material 431. The magnetic material 431 may include a plurality of magnetic dipoles. The plurality of magnetic dipoles may be arranged according to the unique payment data given to the credit card 430. For example, the payment data may be binary data, and the dipole of the first length may be arranged in the portion corresponding to the data of "0" of the binary data, and the portion corresponding to the data of & A dipole of a second length may be disposed. On the other hand, as shown in FIG. 4B, the credit card 430 can be moved while being inserted between recesses formed in the read header 421. Movement of the magnetic material 431 may cause a change in the magnetic field, and induction electromotive force may occur in the coil in the read header 421 as the magnetic field is changed. The data receiving apparatus 420 can process and analyze the induced electromotive force, determine whether to make a payment using the analysis result, or transmit the analysis result to another external electronic device.

4A may generate a magnetic field 412 that is substantially the same as the magnetic field generated by movement in the magnetic material 431 of the credit card 430, 420 can be used to transmit settlement data. On the other hand, the electronic device 101 according to various embodiments of the present invention may produce a magnetic field 412 that is not the same as the magnetic field due to the movement of the magnetic material 431. For example, the data receiving apparatus 420 can analyze the induced electromotive force in such a manner that a peak is detected in the waveform of the obtained induced electromotive force. In this case, the electronic device 101 may generate a magnetic field 412 for peak generation so that the data receiving device 420 can detect a peak corresponding to the payment data, thereby generating various low-power magnetic fields can do. For example, rather than applying a relatively large magnitude current, such as a square wave, to the coil, the electronic device 101 may be a sinusoidal wave, a sawtooth wave, a triangular wave, Or a pulse wave, may be applied to the coil. The electronic device 101 may adjust the waveform applied to the coil to produce a magnetic field 412 at which a peak can be detected in the data receiving device 420, which will be described in more detail below. As described above, since the magnetic field is generated by the current of the waveform having a relatively small size as compared with the square wave, low-power settlement data transmission can be performed.

Hereinafter, the strike of the credit card and the payment data transmission by the magnetic field by the electronic apparatus will be described in more detail.

Fig. 5 shows a conceptual diagram of various waveforms corresponding to stripes of a credit card. As shown in FIG. 5, a plurality of magnetic dipoles 511 to 519 may be disposed in the magnetic material 510 of the credit card 520. For example, it is assumed that the payment data provided to the credit card 520 is binary data of "00101 ". The binary data of "0" may correspond to the magnetic dipoles 512, 513, 516 of the first length, and the binary data of "1" may correspond to the magnetic dipoles 514, 515, 517 and 518 of the second length. Here, the first length may be, for example, twice the second length. On the other hand, neighboring magnetic dipoles can be arranged so that the same poles meet each other. More specifically, the S-pole of the second magnetic dipole 512 may be arranged to meet the S-pole of the neighboring third magnetic dipole 513, and the N-pole of the third magnetic dipole 513 may be disposed adjacent to the S- 4 < / RTI > magnetic dipole 514, respectively.

The magnetic material 510 may be swept and an induced voltage may be applied to the coil 501 included in the data receiving apparatus 420. [ Meanwhile, the coil 501 may be wound on a ferrite 502 for increasing the magnetic flux. The induced voltage 530 may include a plurality of peaks 531 to 538. [ For example, when the N pole approaches the coil 501, positive peaks 531, 533, 535 and 537 may be induced, and when the S pole approaches, negative peaks 532, 534, 536 and 538 may be induced. The data receiving apparatus 420 may perform frequency / double frequency (F2F) encoding / decoding based on the distance between the peaks. In the F2F encoding / decoding, a first frequency may be assigned to the data of "0" and a second frequency which is twice the first frequency may be assigned to the data of "1". The data receiving device 420 may obtain the F2F signal 540 based on the distance between adjacent peaks of the induced voltage 530. [ For example, the F2F signal may be composed of sections 541, 542, 545 having a first time length and sections 543, 544, 546, 547 having a second time length. The intervals 541 to 517 can be distinguished by the detection of the peak of the induced voltage 530. The data receiving apparatus 420 interprets the sections 541,542 and 545 having the first time length as binary data 551,552 and 554 of 0 and the sections 543,544,546 and 547 having the second time length as binary data 553,555 ), So that the data 550 of "00101 " can be obtained. The electronic device 101 according to various embodiments of the present invention may be configured such that a current having various kinds of low-power waveforms that cause the data receiving device 420 to detect the peaks 531 to 538 corresponding to the payment data, .

Figure 6 shows a block diagram of a data transmission circuit in accordance with various embodiments of the present invention.

The data transmission circuit 600 may be included in the electronic device 101 or connected to the electronic device 101 in a wired or wireless manner. The data transmission circuit 600 may include an encoding / driving circuit 601 and a coil 602.

The processor 120 may provide the payment data, for example, stored in the memory 130, to the encoding / driving circuit 601. After executing the payment application, the processor 120 may provide the payment data to the encoding / driving circuit 601 when the predetermined authentication procedure is completed. The encoding / driving circuit 601 can encode the received payment data in a preset method, for example, the F2F method. The encoding / driving circuit 601 can convert the settlement data into binary data, and generate a waveform corresponding to the converted binary data. In terms of generating a waveform, the encoding / driving circuit 601 may be called a waveform generating circuit. Meanwhile, the processor 120 may provide the payment data of the binary data format to the encoding / driving circuit 601, in which case the encoding / driving circuit 601 may omit conversion to binary data.

The encoding / driving circuit 601 according to various embodiments of the present invention can generate a sinusoidal waveform current corresponding to the payment data. For example, a sine wave having the first frequency can be generated in correspondence with the binary data of "0" of the payment data, and a sine wave having the second frequency can be generated corresponding to the binary data of "1". Various embodiments of the encoding / driving circuit 601 will be described later in more detail. The current outputted from the encoding / driving circuit 601 can be transmitted to the coil 602. [ The coil 602 can generate and emit an induced magnetic field 603 by means of an electric current, so that a magnetic signal can be emitted. The magnitude of the current of the sine wave applied to the coil 602 can be changed according to the passage of time, and the change of the current can generate and emit the induction field 603. The coil 602 may be implemented in various forms such as a spiral shape, a solenoid shape, a toroid shape, and the like. Meanwhile, the encoding / driving circuit 601 according to various embodiments of the present invention may include an amplifier for amplifying a signal.

The induced magnetic field 603 can be changed in intensity with time. An induced electromotive force can be generated in the coil 622 of the data receiving apparatus 620 by the induction magnetic field 603 which changes with time. The coil 622 may be wound on a ferrite 621 to increase the magnetic flux. The induced electromotive force generated in the coil 622, for example, the induced voltage, can be decoded in the decoding circuit 623. For example, the decoding circuit 623 can detect peaks in the induced electromotive force and can interpret the data according to the intervals between the peaks. The decoding circuit 623 can be interpreted as data of "0" when the interval between peaks is the first time length, and can be interpreted as data of "1" when it is the second time length.

The communication circuit 624 can transmit the decoding result to another external electronic device by wire or wirelessly. The external electronic device can determine the success or failure of the settlement using the received decoding result, and can return the success or failure of settlement to the data receiving device 620. The data receiving device 620 may perform an event corresponding to each success or failure of settlement. In another embodiment, the data receiving device 620 may include a processor, which may use the decoding results to determine whether the payment is successful or unsuccessful. As described above, the data transmission circuit 600 according to various embodiments of the present invention applies a relatively small current, such as a sine wave, to the coil 602, so that the power used for magnetic signal emission is relatively small . Accordingly, power used for data transmission can be reduced, and settlement data transmission can be stably performed even when the remaining power amount of the battery is relatively small. It will be readily understood by those skilled in the art that the encoding / driving circuit 601 may apply a low power current of various waveforms set to enable peak detection in the decoding circuit 623 to the coil 602, and is not limited to a sine wave .

According to various embodiments of the present invention, the processor 120 may comprise an encoding / driving circuit 601. For example, the processor 120 may perform at least some of the functions that the encoding / driving circuitry may provide.

7 is a conceptual diagram for explaining a signal by application of a square wave for comparison with the present invention.

In an electronic device according to a comparative example, for example, a square wave voltage 710 can be applied to a primary coil. Voltage 710 may include high signals 711,713, 715,717, 719 and low signals 712,714,716,718. The electronic device according to the comparative example can set the change period from the high signal to the low signal or from the low signal to the high signal to the first period or the second period. For example, the electronic device according to the comparative example can change the signal for the binary data of "0" in the first cycle, and change the signal for the binary data of "1" in the second cycle can do.

An induced voltage 720 induced in a secondary coil included in the data receiving apparatus may include a plurality of peaks 721 to 728. [ That is, the electronic device according to the comparative example can apply the square-wave voltage 710 so that the voltage induced in the secondary side coil of the data receiving device has peaks. The data receiving apparatus can obtain the F2F signal 730 based on the interval between the peaks 721 to 728. [ The F2F signal 730 may include a plurality of sub-signals 731 to 737 according to the interval between the peaks 721 to 728. The data receiving apparatus can acquire binary data 741 to 745 of "0" or "1 " based on the time length of the F2F signal. On the other hand, the electronic device according to the comparative example can apply the voltage or current of the rectangular or trapezoidal waveforms 801 and 811 as shown in FIGS. 8A and 8B to the primary coil, and the secondary coil has a peak The voltage or current (802,812) involved can be derived. As described above, since the trapezoidal waveform or the square wave has a relatively large size, the power used for transmission of the payment data can be large.

9A shows a graph showing the waveforms of voltage or current applied to the primary coil of an electronic device according to various embodiments of the present invention.

Electronic device 101 in accordance with various embodiments of the present invention may apply a sine wave voltage or current 901 to the primary side coil. The electronic device 101 can apply, for example, the current shown in Equation (1) to the primary coil.

A may refer to the amplitude of the current applied to the primary coil, and f may refer to the frequency of the current. The electronic device 101 according to various embodiments of the present invention may adjust the frequency f according to the binary data of the payment data. For example, electronic device 101 may set f to a first frequency to express billing data "0 ", and to convert electronic device 101 to a second frequency And the second frequency may be, for example, twice the first frequency. For example, the electronic device 101 may apply a sinusoidal current as shown in FIG. 9B to the primary coil for representation of binary data of "00101 ". The electronic device 101 applies a current composed of sinusoidal waves 971, 972, 975 of the first frequency encoding binary data of "0" and sinusoidal waves 973, 974, 976, 977 of the second frequency which encoded binary data of "1" to the primary coil can do. 9B, the electronic device 101 may apply a current to the primary coil that changes instantaneously (i.e., differential coefficient) of the current (or voltage) over time at least within a specified time have. For example, when the electronic device 101 applies the current of the first sinusoidal wave 971 of the first frequency that encoded the binary data of the first " 0 " to the primary coil, The instantaneous slope gradually decreases to zero while the instantaneous slope gradually decreases during the second half of the first time length DELTA, but the instantaneous slope can be increased. The electronic device 101 generates a second time length DELTA / 2 when applying the current of the sinusoidal wave 973 of one of the sinusoidal waves 973 and 974 of the second frequency, which has encoded binary data of " 1 & ), The instantaneous slope gradually decreases to zero while the instantaneous slope gradually decreases during the second half of the second time length (? / 2), but the instantaneous slope can be increased in absolute value. In addition, when the electronic device 101 applies the current of the other sine wave 974 to the primary coil, the instantaneous slope gradually increases for the first half of the second time length? / 2 to reach zero, The instantaneous slope gradually increases during the second half of the time length? / 2, and the instantaneous slope during the application period of the sine wave 974 may increase. As described above, the electronic device 101 according to various embodiments of the present invention may apply a current or voltage of a waveform that changes its instantaneous slope of amplitude with respect to time to the primary coil.

In another embodiment, the electronic device 101 reaches zero with increasing gradual slope from the maximum amplitude (e.g., A) during the first half of the first time length? Of the square wave, The instantaneous slope increases gradually with a positive slope during the latter half of the period (Δ), and the voltage or current of the waveform reaching the maximum amplitude can be applied to the primary coil.

The induced electromotive force 902 of the sinusoidal waveform can be induced in the secondary side coil. For example, the induced electromotive force 902 may take the form of equation (2).

B in Equation 2 may mean the amplitude of the induced electromotive force induced in the secondary side coil. F in the secondary side coil may be the same as f in equation (1). That is, the induced electromotive force induced in the secondary side coil may have a frequency substantially equal to the current applied to the primary side coil. Thus, the data receiving apparatus including the secondary side coil can analyze the data based on the time distance between the peaks 903 and 904 of the induced electromotive force 902 induced in the secondary side coil. For example, if the frequency is a first frequency, the time distance between the peaks 903 and 904 may be the first distance, and if the frequency is the second frequency, the time distance between the peaks 903 and 904 may be the second Distance, and the first distance may be twice the second distance. The data receiving apparatus can decode the data based on the distance between the peaks in the same manner as in the conventional method.

FIG. 9C shows a graph for comparing sine wave type current and square wave type current according to various embodiments of the present invention.

9C, the square wave current 930 applied by the electronic device according to the comparative example is greater than the magnitude 931 of the sinusoidal wave current 940 applied by the electronic device according to various embodiments of the present invention ). The sinusoidal current 940 has a gain of 30% in terms of power consumption compared to the square wave current 930 on the root mean square (RMS) basis.

On the other hand, if a sine wave is used, the error rate may decrease. For example, a square wave is generated by combining a plurality of sinusoidal waves, and the error rate is also high because over damping or under damping is likely to occur. In contrast, as the sine wave is used, the probability of occurrence of over-damping or under-damping is lowered, so that the error rate can also be reduced.

10A shows an encoding / driving circuit of an electronic device capable of generating a sine wave current according to various embodiments of the present invention.

The electronic device 101 may include a primary coil 1010. The electronic device 101 can apply a sine wave current corresponding to the payment data to the primary coil 101. [ The electronic device 101, for example, the processor 120, controls the on / off of a plurality of switches 1001 to 1004 coupled to the primary coil 1010 to apply a sinusoidal current to the primary coil 1010 . Each of the first to fourth switches 1001 to 1004 may be connected to the primary coil 1010 and the third switch 1003 and the fourth switch 1004 may be connected to the ground terminal 1005. The driving power of V _D may be applied to the first switch 1001 and the second switch 1002.

10B shows a conceptual diagram for explaining application of a current according to various embodiments of the present invention. 10B, the electronic device 101 can generate a sine wave by a pulse width modulation (PWM) method. For example, the electronic device 101 controls the first switch 1001 and the fourth switch 1004 to be in the ON state so that the positive waveform currents 1021 to 1025 are applied to the primary coil 1010, The second switch 1002 and the third switch 1003 can be controlled to be in an off state. For example, the processor 120 controls the on / off states of each of the plurality of switches 1001 to 1004 by applying a switch control signal to each of the first input terminal A and the second input terminal B . The first input terminal A may be connected to the first switch 1001 and the fourth switch 1004 and the second input terminal B may be connected to the second switch 1002 and the third switch 1003.

The electronic device 101 controls the first switch 1001 and the fourth switch 1004 to be in the OFF state so that the negative waveform currents 1027 to 1032 are applied to the primary coil 1010, 1002 and the third switch 1003 can be turned on. As shown in Fig. 10B, the applied time of the positive waveform currents 1021 to 1025 can increase and then decrease again. In addition, the applied time of the negative waveform currents 1027 to 1032 can also increase and then decrease again. On the other hand, the electronic device 101 may not apply a current in a specific section. According to the above description, a sinusoidal waveform current can be applied to the primary coil 1010. [ The electronic device 101 can adjust the application period of the currents 1021 to 1025 and 1027 to 1032 by adjusting the application period of the switch control signal input to the input terminals A and B. [ The electronic device 101 can have each of the positive waveform currents 1021 through 1025 and the negative waveform current waveforms 1027 through 1032 each having a first plurality of application periods for generating a sine wave of the first frequency have. On the other hand, when the electronic device 101 generates a sinusoidal wave of the second frequency, the current (not shown) of a positive waveform and the current (not shown) of a negative waveform 2 < / RTI > The second plurality of license terms may differ from the first plurality of license terms, for example the second plurality of license terms may be shorter than the first plurality of license terms. Alternatively, the interval between the second plurality of application periods may be shorter than the interval between the first plurality of application periods.

In various embodiments of the present invention, the electronic device 101 may determine the frequency of the sinusoidal wave in response to the payment data and may determine the on / off state of the plurality of switches 1001-1004 to form a sinusoid of the determined frequency Can be controlled. For example, electronic device 101 generates currents 1021 through 1025 and 1027 through 1032 in the case of forming a sine wave of a second frequency that is twice the first frequency, as compared to forming a sine wave of the first frequency. And the interval between the currents 1021 to 1025 and 1027 to 1032 may be reduced by a factor of two. The electronic device 101 may apply the voltage of the waveform of Fig. 10B to the coil. According to the above description, the electronic device 101 can generate sine waves of the first frequency and the second frequency according to the payment data.

Figure 10C shows a circuit diagram of an electronic device according to various embodiments of the present invention. The electronic device of FIG. 10C may include one input A rather than two inputs, as compared to the electronic device of FIG. 10A. In addition, the first path of one input terminal A may be connected to the first switch 1001 and the fourth switch 1004, and the inversion element 1011 may be disposed in the second path to invert the signal. The output terminal of the inversion element 1011 may be connected to the second switch 1002 and the third switch 1003. Since the inverting element 1011 inverts and outputs the input signal, the inverted signal for the signal applied to the signal applied to the first switch 1001 and the fourth switch 1004 is inverted by the second switch 1002 and the third May be applied to the switch 1003. That is, during the input of the switch control signal for controlling the first switch 1001 and the fourth switch 1004 to be in the ON state, the switch control for controlling the second switch 1002 and the third switch 1003 to be in the OFF state A signal can be input. While the switch control signal for controlling the first switch 1001 and the fourth switch 1004 to be in the OFF state is inputted, the switch control for controlling the second switch 1002 and the third switch 1003 to be in the ON state A signal can be input. Accordingly, the electronic device 101 can apply the currents 1021 to 1025 and 1027 to 1032 as shown in FIG. 10B to the primary coil 1010 by applying a switch control signal to the input terminal A. [

Figure 10d shows a circuit diagram of an electronic device according to various embodiments of the present invention. The electronic device of FIG. 10D may further include a capacitor 1012, as compared to the electronic device of FIG. 10A. One end of the capacitor 1012 may be connected to the primary coil 1010 and the other end may be connected to the ground terminal 1013. In the capacitor 1012, the charge can be temporarily stored, so that a sinusoidal wave can be formed more accurately. Alternatively, although not shown, the electronic device 101 according to various embodiments of the present invention may further include an additional coil coupled to the primary coil 1010. Meanwhile, the electronic device 101 according to various embodiments of the present invention further includes at least one of additional coils and additional capacitors connected to the primary coil, even in the structure having one input A as shown in Fig. 10C It is possible. 10A to 10D, various circuits capable of generating waveforms may be referred to as waveform generation circuits.

11 shows a flowchart for explaining a control method of an electronic device according to various embodiments of the present invention.

In operation 1110, the electronic device 101 may receive a payment request. Hereinafter, the fact that the electronic device 101 performs a specific operation may mean that the processor 120 of the electronic device 101 performs a specific operation. Alternatively, the electronic device 101 performing a specific operation may mean that the processor 120 controls other hardware to perform a specific operation. The electronic device 101 may receive a payment request after an authentication procedure such as a password entry and comparison procedure for payment has been successfully performed. Alternatively, the electronic device 101 may detect a payment request event. For example, the electronic device 101 can execute a payment application, specify a payment request icon in the payment application, and detect a payment request event in response to completion of user authentication.

In operation 1120, the electronic device 101 may encode the payment data. The electronic device 101 can use an encoding method that uses a current of relatively low power waveform as described above.

In operation 1130, the electronic device 101 may determine whether the data to be output is a first number, e.g., "0 ". If the data to be output is binary data of a first value, for example "0 ", at 1140 operation, the electronic device 101 generates a waveform corresponding to the first value, So as to generate a magnetic field. If the data to be output is binary data, e.g., "1", then at 1150 operation, the electronic device 101 generates a waveform corresponding to the second value, eg, a waveform having a second frequency So as to generate a magnetic field. Controlling the generation of a magnetic field of a waveform having a specific frequency in 1140 operation and 1150 operation may be performed by controlling the on / off state of each of the switches 1001 to 1004 in various circuits such as, for example, Fig. 10A, 10C or 10D Can be controlled.

12 shows a conceptual diagram of an electronic device according to various embodiments of the present invention.

The processor 120 according to various embodiments of the present invention may output the drive control signal corresponding to the payment data to the mechanical drive circuit 1211. [ The mechanical drive circuit 1211 may be physically connected to the coil 1210. The coil 1210 may be disposed between the N pole magnet 1201 and the S pole magnet 1202. The mechanical drive circuit 1211 may include, for example, a motor and may be rotated under the control of the processor 120. [ The motor may rotate the coil 1210 in the first direction 1221 or the second direction 1222. An induction magnetic field can be generated from the coil 1210 in accordance with the rotation in the magnets 1201 and 1202. [ The processor 120 can control at least one of the rotation direction and the rotation speed in accordance with the settlement data. For example, the processor 120 may rotate the coil 1210 at the first rotational speed in response to the binary data of "0 ", and the coil 1210 ), And the second rotation speed may be twice the first rotation speed. Accordingly, a sinusoidal magnetic field of the first frequency can be generated corresponding to the binary data of "0 ", a sinusoidal magnetic field of the second frequency can be generated corresponding to the binary data of" 1 & One frequency can be doubled. The data receiving apparatus can obtain the settlement data by performing decoding based on the interval between the peaks of the sine wave induced in the secondary side coil. If a sinusoidal wave is generated, the processor 120 can control to change only the rotational speed according to the type of binary data while maintaining the rotational direction of the mechanical driving circuit 1211 in one direction. On the other hand, in the case of generating a pulse wave instead of a sine wave, the processor 120 may alternately change the direction of rotation, for example, and the negative pulse wave and the positive pulse wave are alternately generated in the coil 1210 . As shown in Fig. 12, at least one circuit capable of generating a waveform can be referred to as a waveform generating circuit.

Figure 13 shows a flowchart for illustrating a method of controlling an electronic device according to various embodiments of the present invention.

In operation 1310, the electronic device 101 may receive a payment request. In operation 1320, the electronic device 101 may encode the payment data. In operation 1330, the electronic device 101 may determine whether the data to be output is binary data of a first value, e.g., "0 ". If the data to be output is a first number, at 1340 operation, the electronic device 101 may control at least one of the rotational direction and the rotational speed of the mechanical drive circuit to produce a waveform corresponding to the first value. For example, the electronic device 101 may control the rotational speed of the drive circuit at a first speed, corresponding to the first value, thereby generating and discharging a magnetic field of a first frequency. In 1350 operation, the electronic device 101 may control at least one of the rotational direction and rotational speed of the mechanical drive circuit to produce a waveform corresponding to the second value. For example, the electronic device 101 may control the rotational speed of the drive circuit at a second speed, corresponding to the first value, thereby generating and discharging a magnetic field of a second frequency.

14 shows a block diagram of an electronic device for generating a sinusoidal magnetic field in accordance with various embodiments of the present invention.

Processor 120 may provide payment data, e. G., Binary data, to a digital to analog converter (DAC) 1410. The DAC 1410 can convert the digital signal of the received binary data into an analog signal. For example, the DAC 1410 can generate an analog signal of the first frequency for binary data of "0 ", and the analog signal of" 1 " And the analog signal of the second frequency can be generated for the binary data. The DAC 1410 can provide the generated analog signal to the coil 1420. Accordingly, the electronic device 101 can generate and emit the magnetic field of the sine wave having the first frequency corresponding to the binary data of "0 ", and the sine wave having the second frequency corresponding to the binary data of & A magnetic field can be generated and released. A DAC according to various embodiments of the present invention may generate an analog signal by referring to a lookup table for generating analog signals of various frequencies. Meanwhile, in another embodiment of the present invention, the electronic device 101 may generate a sine wave by first generating a square wave, and then filtering the generated square wave.

In various embodiments of the present invention, electronic device 101 (e.g., encoding / driving circuitry) can generate various waveforms with instantaneous slope changes in various ways. In various embodiments of the present invention, the electronic device 101 may generate various waveforms with instantaneous slope changes by selecting at least only a portion of the order according to the Fourier transform for generating square waves. For example, if the electronic device 101 uses a component corresponding to a constant, a component from a first order to a tenth harmonic component, in order to generate a square wave, the electronic device 101 calculates a component corresponding to a constant, By using up to an arbitrary order of harmonic components, it is possible to generate various waveforms in which the instantaneous slope is changed. In various embodiments of the present invention, the electronic device 101 may generate various waveforms with instantaneous slope changes, for example using a PWM scheme. For example, the electronic device 101 may adjust the application period of each of the plurality of currents 1021 through 1031 in FIG. 10B to produce various waveforms with instantaneous slopes changed, thereby changing the instantaneous slope A current or voltage of various waveforms may be applied to the coil. In various embodiments of the present invention, the electronic device 101 may apply currents or voltages of various waveforms to the coils that change instantaneous slopes using the included DAC. A DAC according to various embodiments of the present invention may be preconfigured to generate various waveforms in which the instantaneous slope is changed and may be configured to generate a waveform of the first frequency or a waveform of the second frequency corresponding to the received & A waveform of two frequencies may be generated and output to the coil.

15A-15C illustrate current or voltage waveforms applied to various types of primary coils according to various embodiments of the present invention.

As in Fig. 15A, the electronic device 101 can apply a plurality of gauge wave currents or voltages 1501 to 1507 to the primary coil. For example, the electronic device 101 can apply a quiescent wave current or voltage (1501, 1502, 1505) having a first time length (?) To the primary coil in response to binary data of " And 1503,1504,1506,1507) having the second time length (? / 2) corresponding to the binary data of "1" can be applied to the primary coil. The stationary phase also has a power consumption advantage over the square waves used in conventional electronic devices.

15B, the electronic device 101 may apply a plurality of triangular wave currents or voltages 1511 to 1517 to the primary side coil. For example, the electronic device 101 may apply triangular wave currents or voltages 1511, 1512, 1515 having a first time length? To the primary coil in response to binary data of "0" , And triangular wave currents or voltages 1513, 1514, 1516, and 1517 having the second time length? / 2 can be applied to the primary coil in correspondence with the binary data of "1". Triangular waves also have a power consumption advantage over square waves used in conventional electronic devices.

15C, the electronic device 101 may apply currents or voltages 1521 to 1528 of a plurality of pulsed spurs to the primary side coil. For example, the electronic device 101 may generate a pulse wave so that the previous pulse wave and the time interval correspond to the first time length? In response to the binary data of "0 ". For example, in FIG. 15C, the electronic device 101 applies a pulsed wave 1521 and outputs a pulsed wave 1522 after a first time length? Has passed for a binary data representation of "0 & . In addition, the electronic device 101 may generate a pulse wave so that the previous pulse wave and the time interval correspond to the second time length? / 2 corresponding to the binary data of "1". For example, in FIG. 15C, after applying the pulse wave 1523, the electronic device 101 generates a pulsar pulse 1523 after the second time length? / 2 for the binary data representation of "1" The pulsed wave 1525 can be applied after the first time length 1524 is applied and the second time length? / 2 again. Pulse spares also benefit from power consumption compared to square waves used in conventional electronic devices.

In addition to the above-mentioned waveforms, currents or voltages of various waveforms can be applied to the primary coil at various frequencies or time intervals corresponding to the settlement data, and there is no limitation as long as the waveforms have a gain in terms of power consumption compared to the conventional square waves. Will be readily apparent to those skilled in the art.

Figure 16 shows a flowchart for illustrating a method of controlling an electronic device according to various embodiments of the present invention.

In operation 1610, the electronic device 101 may receive a payment request. In operation 1620, the electronic device 101 may determine whether the residual power amount of the internal battery (not shown) is above a threshold value. If the remaining power is above the threshold, at 1630 operation, the electronic device 101 may encode the payment data in a first manner. Here, the first method may mean, for example, a method of generating a magnetic field of a square wave. In operation 1640, the electronic device 101 may control to generate a magnetic field of a first waveform corresponding to the data encoded in the first manner. If the remaining power amount is below the threshold, at 1650 operation, the electronic device 101 may encode the payment data in a second manner. The second scheme may mean an encoding scheme in which the power consumption is smaller than that of the first scheme, for example, in a manner of generating a magnetic field of a waveform different from a square wave. In operation 1660, the electronic device 101 may control to generate a magnetic field of a second waveform corresponding to the data encoded in the second manner.

17 shows a flowchart for explaining a control method of an electronic device according to various embodiments of the present invention.

In operation 1710, the electronic device 101 may receive a payment request. In operation 1720, the electronic device 101 may determine the encoding scheme corresponding to the amount of power remaining in the battery (not shown). For example, the electronic device 101 may previously store association information between the battery power balance and the encoding scheme. The electronic device 101 may determine the encoding scheme corresponding to the identified amount of remaining power with reference to the association information. In operation 1730, the electronic device 101 may control to generate a magnetic field of the waveform corresponding to the determined encoding scheme.

As described above, various encoding schemes can be applied according to the amount of remaining power of the battery.

A method of controlling an electronic device, including a coil, for transmitting data in accordance with various embodiments of the present invention includes: obtaining card information stored in a memory operatively associated with the electronic device; A first voltage or a first current having a first frequency and having a first waveform whose instantaneous slope of amplitude with respect to time is varied in at least a portion of a period corresponding to the first portion, And when the second portion of the card information is a second value, using the waveform generation circuit, having a second frequency that is twice the first frequency, and wherein the instantaneous slope corresponds to the second portion And applying a second voltage or a second current having a second waveform that varies in at least a portion of the period to the coil.

The electronic device according to various embodiments of the present invention may include a plurality of switches connected to the coil, and the control method according to various embodiments of the present invention may further comprise: At least a portion of the first voltage, the first current, the second voltage, and the second current, in at least a portion of an operation to apply a second voltage or a second current to the coil, And controlling an on state or an off state of each of the plurality of switches to generate one of the plurality of switches.

A control method according to various embodiments of the present invention is a control method for controlling at least part of an operation of applying the first voltage or the first current to the coil or an operation of applying the second voltage or the second current to the coil , And generating an sine wave, a gauge wave, a triangle wave, or a pulse wave as the first waveform or the second waveform.

The electronic device according to various embodiments of the present invention includes a drive circuit for rotating the coil, an N pole magnet disposed in one direction of the coil, and an S pole magnet disposed in the other direction of the coil, The control method according to various embodiments of the present invention is characterized in that in order to generate the first voltage or the first current in at least part of the operation of applying the first voltage or the first current to the coil, For generating the second voltage or the second current in at least part of the operation of applying the second voltage or the second current to the coil, And rotating the coil at a second speed using the driving circuit.

The electronic device according to various embodiments of the present invention includes a digital-to-analog converter (DAC), and a control method according to various embodiments of the present invention includes: The first voltage, the second voltage, and the second voltage, using at least a portion of the operation of applying a second voltage or a second current to the coil, Lt; RTI ID = 0.0 > 1 < / RTI > current.

And the embodiments disclosed in this document are presented for the purpose of explanation and understanding of the disclosed contents, and do not limit the scope of the present disclosure. Accordingly, the scope of the present disclosure should be construed as including all modifications based on the technical idea of the present disclosure or various other embodiments.

Claims (20)

In an electronic device,
Memory;
coil;
A waveform generation circuit; And
The processor comprising:
Acquiring card information stored in the memory,
Wherein when the first portion of the card information is a first value, the waveform generating circuit is used to generate a first signal having a first frequency, wherein the instantaneous slope of the amplitude with respect to time is changed in at least a part of a period corresponding to the first portion Applying a first voltage or a first current having a waveform to the coil, and
And wherein when the second portion of the card information is a second value, the waveform generation circuit is used to have a second frequency that is twice the first frequency, and wherein the instantaneous slope is at least part of a period corresponding to the second portion And to apply a second voltage or a second current having a second waveform to be changed to the coil. The method according to claim 1,
Wherein the waveform generation circuit includes a plurality of switches connected to the coil,
The processor may be configured to control the on or off state of each of the plurality of switches to produce a corresponding one of the first voltage, the first current, the second voltage, Device. 3. The method of claim 2,
Wherein the plurality of switches comprise:
A first switch disposed between one end of the coil and a voltage source providing a specified voltage;
A second switch disposed between the voltage source and the other end of the coil;
A third switch disposed between the one end and the ground terminal of the coil; And
A fourth switch disposed between the other end of the coil and the ground terminal,
≪ / RTI > The method of claim 3,
The processor comprising:
Periodically turning the first switch and the fourth switch on or off to apply a corresponding one of the first current and the first voltage to the coil, and
Keeping the first switch and the fourth switch off to apply a corresponding one of the second current or the second voltage to the coil and to cause the second switch and the third switch to be turned on or off periodically Off state of said waveform generation circuit. 5. The apparatus of claim 4,
And to change the period in which the first switch and the fourth switch are turned on. 6. The apparatus of claim 5,
And the second switch and the third switch are turned on. 2. The apparatus of claim 1,
Using the waveform generation circuit,
Wherein the first waveform or the second waveform is configured to generate a sine wave, a gauge wave, a triangle wave, or a pulse wave as the first waveform or the second waveform. The waveform generation circuit according to claim 1,
A driving circuit for rotating the coil;
An N pole magnet disposed in one direction of the coil; And
And an S pole magnet disposed in the other direction of the coil. 9. The method of claim 8,
The processor comprising:
Rotating the coil at a first speed using the drive circuit to generate the first voltage or the first current,
And to rotate the coil at a second speed using the drive circuit to generate the second voltage or the second current. 2. The apparatus of claim 1, wherein the waveform generation circuit comprises a digital-to-analog converter (DAC)
And to perform the applying operation to the corresponding one of the first voltage, the first current, the second voltage, and the second current using the DAC. A control method of an electronic device including a coil,
Obtaining card information stored in a memory operatively associated with the electronic device;
A first voltage having a first frequency when the first portion of the card information is a first value and having a first waveform whose instantaneous slope of amplitude with respect to time is varied in at least a portion of a period corresponding to the first portion, Applying a first current to the coil; And
And wherein when the second portion of the card information is a second value, the waveform generation circuit is used to have a second frequency that is twice the first frequency, and wherein the instantaneous slope is at least part of a period corresponding to the second portion Applying a second voltage or a second current having a second waveform to be changed to the coil. 12. The method of claim 11,
The electronic device includes a plurality of switches connected to the coil,
At least a portion of the operation of applying the first voltage or the first current to the coil, or the operation of applying the second voltage or the second current to the coil,
Controlling an on state or an off state of each of the plurality of switches to generate a corresponding one of the first voltage, the first current, the second voltage, and the second current . 12. The method of claim 11,
At least a portion of the operation of applying the first voltage or the first current to the coil, or the operation of applying the second voltage or the second current to the coil,
An operation of generating a sine wave, a gauge wave, a triangle wave, or a pulse wave as the first waveform or the second waveform
/ RTI > 12. The electronic device according to claim 11, wherein the electronic device comprises: a drive circuit for rotating the coil; an N pole magnet arranged in one direction of the coil; and an S pole magnet arranged in the other direction of the coil,
Rotating the coil at a first speed using the drive circuit to generate the first voltage or the first current in at least a portion of an operation of applying the first voltage or the first current to the coil / RTI >
Rotating the coil at a second speed using the drive circuit to generate the second voltage or the second current in at least part of the operation of applying the second voltage or the second current to the coil / RTI > 12. The electronic device of claim 11, wherein the electronic device comprises a digital-to-analog converter (DAC)
At least a part of the operation of applying the first voltage or the first current to the coil or the operation of applying the second voltage or the second current to the coil by using the DAC, 1 current, the second voltage, and the second current. In an electronic device,
Memory;
coil;
A waveform generation circuit; And
The processor comprising:
Acquiring card information stored in the memory,
And when the first portion of the card information is a first value, the waveform generation circuit is used to generate a first waveform having a first frequency, the instantaneous slope of the amplitude with respect to time being changed during a period corresponding to the first portion, Applying a first voltage or a first current to the coil, and
And a second portion of the card information having a second frequency higher than the first frequency when the second portion of the card information is a second value, wherein the second slope is changed during a period corresponding to the second portion, And to apply a second voltage or a second current having a waveform to the coil. 17. The method of claim 16,
Wherein the waveform generation circuit includes a plurality of switches connected to the coil,
The processor may be configured to control the on or off state of each of the plurality of switches to produce a corresponding one of the first voltage, the first current, the second voltage, Device. 17. The system of claim 16,
Using the waveform generation circuit,
Wherein the first waveform or the second waveform is configured to generate a sine wave, a gauge wave, a triangle wave, or a pulse wave as the first waveform or the second waveform. 19. The apparatus of claim 18,
Wherein the electronic device is configured to select either the sine wave, the gauge wave, the triangular wave, or the pulse wave based on the remaining power of the battery of the electronic device to generate the first waveform or the second waveform. 17. The system of claim 16,
And to use the waveform generation circuit to generate the second waveform so that the second frequency is an integer multiple of the first frequency.

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