WO2015172483A1 - 一种近距离通信装置及其工作方法、移动终端 - Google Patents
一种近距离通信装置及其工作方法、移动终端 Download PDFInfo
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- 238000010586 diagram Methods 0.000 description 15
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- 230000005236 sound signal Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 230000008520 organization Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
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- 230000008054 signal transmission Effects 0.000 description 2
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- 238000007792 addition Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a short-range communication device, a working method thereof, and a mobile terminal.
- EPC Global electronic product code Global
- the application area is mainly North and South America, the frequency band includes 902-928MHz and 13.56MHz
- the second is ISO (International Standardization) Organization, International Organization for Standardization)
- the application area is mainly Europe, the frequency band includes 860-950MHz
- the third is Ubiquitous ID Center (Ubiquitous Center) organization
- the application area is mainly Japan, the frequency band includes 2.45GHz and 13.56MHz.
- a commonly configured wireless communication antenna includes a main antenna and a diversity antenna, a WIFI (WIreless-FIdelity) antenna, a GPS (Global Positioning System) antenna, a Bluetooth antenna, etc.
- WIFI WIreless-FIdelity
- GPS Global Positioning System
- Bluetooth antenna etc.
- these antennas Communication frequency is higher, antenna one It is rod-shaped.
- the short-range communication communication frequency is low, and the rod antenna will not be able to effectively transmit and receive the signal. Therefore, the antenna used for short-range communication generally needs to be coiled, which tends to occupy a large volume.
- the antenna layout of the terminal device is made. And design is increasingly challenging.
- the short-range communication antennas that are coiled into the coils add to the difficulty of antenna design.
- the technical problem to be solved by the present invention is to provide a short-range communication device, a working method thereof, and a mobile terminal, which are used to solve the problems of large size, poor reliability, and difficult layout of a short-distance communication antenna in a mobile terminal in the prior art.
- the present invention provides a short-range communication device including an antenna, a connection gating portion, and a communication signal processing portion; wherein the antenna is configured to be driven in an audio output device of the mobile terminal a coil vibrating coil that receives or transmits a short-range communication signal; the connection gating portion configured to: selectively connect the antenna from the audio output device to the communication signal processing portion; the communication The signal processing unit is configured to process the short-range communication signal received or transmitted by the antenna.
- the audio output device comprises a speaker and/or an earpiece.
- connection gating portion comprises a switch or a duplexer.
- a frequency adjustment unit is further disposed between the connection gating unit and the communication signal processing unit, and configured to: perform a signal transmitted between the connection gating unit and the communication signal processing unit. Frequency adjustment.
- an embodiment of the present invention further provides a method for operating a short-range communication device, comprising: receiving or transmitting a short-range communication signal through an antenna, wherein the antenna is a coil that drives a film vibration in an audio output device of the mobile terminal;
- the short-range communication signal is selectively connected to the communication signal processing unit by a connection gate unit, and the short-range communication signal is processed by the communication signal processing unit.
- the selectively connecting the short-range communication signal to the communication signal processing unit through the connection gating portion comprises: selectively connecting the short-range communication signal through a switch or a duplexer Go to the communication signal processing unit.
- an embodiment of the present invention further provides a mobile terminal provided with any of the short-range communication devices provided by the present invention.
- the short-distance communication device provided by the embodiment of the present invention and the working method thereof, the mobile terminal, wherein the antenna is a coil for driving the film vibration in the audio output device of the mobile terminal; the connection gating portion can select the antenna from the audio output device
- the ground signal is connected to the communication signal processing unit to cause the communication signal processing unit to process the short-range communication signal received or transmitted by the antenna.
- an existing coil in an audio output device in a mobile terminal such as a mobile phone is used as an antenna in short-range communication, and the coil is connected to the communication signal processing unit through a connection strobe portion, thereby completing reception of a short-range communication signal, Processing and transmission, no need to specially make a short-distance communication coil, thereby greatly saving space, facilitating better layout, and avoiding the problem that the communication coil is disposed on the outer casing of the mobile terminal and the reliability of the antenna is lowered.
- FIG. 1 is a schematic structural diagram of a short-range communication device according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of a connection relationship between a short-range communication device and an audio output device according to an embodiment of the present invention
- FIG. 3 is another connection between a short-range communication device and an audio output device according to an embodiment of the present invention. Schematic diagram of relationship
- FIG. 4 is a schematic diagram showing another connection relationship between a short-range communication device and an audio output device according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of another connection relationship between a short-range communication device and an audio output device according to an embodiment of the present invention.
- FIG. 6 is a schematic diagram showing another connection relationship between a short-range communication device and an audio output device according to an embodiment of the present invention.
- FIG. 7 is a schematic diagram showing another connection relationship between a short-range communication device and an audio output device according to an embodiment of the present invention.
- FIG. 8 is a schematic diagram of a layout of a short-range communication device and an audio output device in a mobile terminal according to an embodiment of the present invention.
- FIG. 9 is another schematic diagram of a layout of a short-range communication device and an audio output device in a mobile terminal according to an embodiment of the present invention.
- FIG. 10 is a schematic diagram of still another layout of a short-range communication device and an audio output device in a mobile terminal according to an embodiment of the present invention
- FIG. 11 is a schematic diagram of short-range communication by using a short-range communication device according to an embodiment of the present invention.
- FIG. 12 is another schematic diagram of short-range communication by using the short-range communication device provided by the embodiment of the present invention.
- FIG. 13 is a flowchart of a working method of a short-range communication device according to an embodiment of the present invention.
- an embodiment of the present invention provides a short-range communication device, generally used in a mobile terminal, the short-range communication device includes an antenna 1, a connection gating portion 2 and a communication signal processing portion 3;
- the antenna 1 is a coil for driving a film vibration in an audio output device of the mobile terminal for receiving or transmitting a short-range communication signal; and a connection gate 2 for selectively connecting the antenna 1 from the audio output device to the antenna
- the communication signal processing unit 3; the communication signal processing unit 3 is configured to process the short-range communication signal received or transmitted by the antenna 1.
- a short-range communication device provided by an embodiment of the present invention includes an antenna 1, a connection gate unit 2, and a communication signal processing unit 3.
- the antenna 1 is a coil for driving the film vibration in the audio output device of the mobile terminal; and the connection gate portion 2 is configured to selectively connect the antenna 1 from the audio output device to the communication signal processing portion 3, thereby processing the communication signal
- the section 3 processes the short-range communication signal received or transmitted by the antenna 1.
- an existing coil in the audio output device in the mobile terminal such as a mobile phone is used as an antenna in short-range communication, and the coil is connected to the communication signal processing unit 3 through the connection gate unit 2, thereby completing the short-range communication signal.
- Receiving, processing and transmitting there is no need to specially make a short-distance communication coil, which saves space and facilitates better layout, and also avoids the problem of reducing the reliability of the antenna by placing the communication coil on the outer casing of the mobile terminal. .
- the short-distance communication antenna is prevented from being attached to the inner surface of the metal casing, and the shielding of the short-range electromagnetic signal by the metal can be avoided, thereby improving the transmission quality of the electromagnetic signal.
- the conventional antenna radiation is generally transmitted in the far field, and the intensity of the far field signal is inversely proportional to the distance of the signal transmission.
- the short-range communication in this embodiment utilizes the near-field signal radiated by the antenna for signal transmission. Near-field signals fade faster than far-field signals and are often inversely proportional to the quadratic or cubic of the distance. This near-field is also called the induction field, and the short-range communication antenna uses the near-field electromagnetic induction field for coupling and information transmission.
- the coil is properly connected to the communication signal processing unit 3 from the audio output device by connecting the gate portion 2.
- the connection gating portion 2 can be any device that can realize the sharing of the above-mentioned coils.
- the embodiment of the present invention is not limited thereto.
- the connection gating portion 2 can be a switch or a duplexer or the like.
- the frequency of the short-range communication signal received by the antenna 1 is generally several tens of megabytes to several hundreds of megahertz, and the frequency at which the signal processing by the communication signal processing section 3 may not match the frequency of the signal received by the antenna 1, therefore,
- a frequency adjustment unit for frequency adjustment of a signal transmitted between the connection gate unit 2 and the communication signal processing unit 3 may be disposed between the connection gate unit 2 and the communication signal processing unit 3, and In order to match the frequency of the signals transmitted between the two.
- the short-range communication device provided by the present invention will be described in detail below through specific embodiments.
- the switch 21 is used as the connection strobe 2 to connect the coils in the horn circuit to the short-range communication device.
- the coil 11 in the horn is used as an antenna to receive the near field communication electromagnetic signal in the free space.
- the switch 21 is switched to the short-distance communication branch, and after the electromagnetic signal is filtered by the filter 22, the signal of the non-near-distance communication frequency band can be filtered, so that the short-distance communication electromagnetic signal of the required frequency band can pass the frequency.
- the adjustment unit 6 performs frequency adjustment, and finally enters the communication signal processing unit 3 to perform signal processing, thereby completing reception and processing of the short-range communication signal.
- the electromagnetic signal can be sequentially passed through the frequency adjustment unit 6, the filter 22, and the switch 21 in the reverse path, and then radiated into the free space by the coil 11 in the horn.
- the switch 21 when the speaker is required to play the sound, only the switch 21 is switched to the audio branch, and the audio signal in the audio processing chip can be played by the speaker after the D-type power amplifier and the switch 21.
- the switch 21 is used as the connection gate 2 to receive the coil 12 in the earpiece as an antenna to receive the near field communication electromagnetic signal in the free space.
- the switch 21 is switched to the short-distance communication branch, and after the electromagnetic signal is filtered by the filter 22, the signal of the non-close communication frequency band can be filtered, so that the short-distance communication electromagnetic signal of the required frequency band can be performed by the frequency adjustment unit 6.
- the frequency is adjusted, and finally, the communication signal processing unit 3 is subjected to signal processing, thereby completing reception and processing of the short-range communication signal.
- the electromagnetic signal can be sequentially passed through the adjustment unit 6, the filter 22, and the switch 21 in the reverse path, and then radiated into the free space by the coil 12 in the earpiece.
- the switch 21 when the handset is required to play the sound, the switch 21 only needs to be switched to the audio branch, and the audio signal in the audio processing chip can be played by the handset after the switch.
- the embodiment shown in Figs. 2 and 3 realizes the reception of the short-range communication signal by using the coils in the horn and the earpiece as antennas, respectively, but the implementation of the present invention is not limited thereto.
- the coil 11 in the horn and the coil 12 in the earpiece can also be used to receive the short-range communication signal, and FIG. 2 and The embodiment shown in Fig. 3 differs in that the combiner 4 is required to output the signals received by the coil 11 and the coil 12 together through the switch 21 to the short-distance communication branch.
- the audio control signal controls the speaker to work, and the audio signal in the audio processing chip can be After the D-type power amplifier, the sub-switch 211 and the switch 21, it is played by the horn; when the handset is required to play the sound, the switch 21 is switched to the audio branch and the sub-switch 211 in the audio branch is switched to the earpiece path, by the audio The control signal controls the operation of the earpiece, and the audio signal in the audio processing chip can be played by the earpiece after passing through the sub-switch 211 and the switch 21.
- the switch 21 is used as the connection gate 2 to connect the coil in the audio output device to the short-range communication device, but in this case, the switch 21 is single-pole double-throw
- the audio branch and the short-range communication branch can only be connected to the coil at one time. Can work at the same time.
- a duplexer may also be employed to connect the coils in the audio output device to the short range communication device. Due to the use of a duplexer, the audio branch and the short-range communication branch can work simultaneously without affecting each other.
- the duplexer 23 is used as the connection gate 2 to connect the coils in the horn circuit to the short-range communication device. Similar to the principle of the embodiment shown in FIG. 2, in this embodiment, the electromagnetic communication signal received by the coil 11 in the horn is only passed through the duplexer 23, and only the electromagnetic signal of the short-distance communication band can enter the short-distance communication branch. At the same time, the audio signal in the audio processing chip can also be played by the speaker through the class D power amplifier and the duplexer 23, thereby realizing the simultaneous operation of the speaker branch and the short-range communication branch.
- the duplexer 23 is used as the connection gate 2 to connect the coil 12 in the earpiece circuit to the short-range communication device. Similar to the principle of the embodiment shown in FIG. 3, the electromagnetic signal received by the coil 12 in the earpiece, after passing through the duplexer 23, only the electromagnetic signal of the short-distance communication band can enter the short-distance communication path to complete the short-range communication; The audio signal in the audio processing chip can also be played by the handset after passing through the duplexer. Thereby achieving simultaneous operation of the handset branch and the short-range communication branch.
- the duplexer 23 is used as the connection gate 2 to connect the coil 12 in the earpiece and the coil 11 in the horn to the short-range communication device. Similar to the embodiment shown in Fig. 4, in the present embodiment, the electromagnetic signals received by the coils 11 and 12 in the horn and the earpiece are combined by the combiner 4 to be input to the duplexer 23. Under the action of the duplexer 23, only the electromagnetic signals of the short-distance communication band can enter the short-distance communication branch to complete the short-range communication. When the speaker is required to play the sound, the sub-switch 211 in the audio path can be switched to the speaker path, and the audio control signal controls the speaker to work.
- the audio signal in the audio processing chip can pass through the class D power amplifier, the sub-switch 211 and the duplexer. After 23, it is played by the speaker; when the handset is required to play the sound, the sub-switch 211 in the audio path can be switched to the earpiece path, and the audio control signal controls the operation of the earpiece, and the audio signal in the audio processing chip can pass through the sub-switch 211. And duplexer 23, by the handset Played out, thus achieving the simultaneous operation of the audio output branch and the short-range communication branch.
- FIGS. 8-10 are schematic diagrams of the layout of a short-range communication device utilizing a coil in a horn, utilizing a coil in an earpiece, and utilizing a coil in a horn and an earpiece, respectively.
- the short-range communication device provided by the embodiment of the present invention can be installed in a mobile terminal such as a mobile phone, thereby implementing short-range communication between the mobile terminals.
- FIG. 11 is a schematic diagram of short-range communication between the mobile terminal 7 and the mobile terminal 8 according to the present invention. When the mobile terminals 7 and 8 are close, data transmission is performed through the horn coil 71 and the earpiece coil 81.
- FIG. 12 is a schematic diagram of short-range communication between the mobile terminal 7 and the mobile terminal 9. When the mobile terminal 7 enters the sensing area of the mobile terminal 9, short-range communication is realized by the horn coil 71 and the ordinary short-range communication coil 91.
- an embodiment of the present invention further provides a working method of a short-range communication device, including:
- the short-range communication signal is selectively connected to the communication signal processing unit through a connection gating portion;
- the short-range communication signal is processed by the communication signal processing unit.
- the working method of the short-range communication device provided by the embodiment of the present invention firstly connects the coil that drives the film vibration in the audio output device of the mobile terminal through the antenna, and then connects the antenna from the audio output device through the connection gating portion.
- the communication signal processing unit is caused to cause the communication signal processing unit to process the short-range communication signal received or transmitted by the antenna.
- an existing coil in an audio output device in a mobile terminal such as a mobile phone is used as an antenna in short-range communication, and the coil is connected to the communication signal processing unit through a connection strobe portion, thereby completing reception of a short-range communication signal, Processing and sending, no need to specially make a short-distance communication coil, which greatly saves space and is beneficial to A better layout also avoids the problem of placing the communication coil on the outer casing of the mobile terminal to reduce the reliability of the antenna.
- step S12 selectively connecting the short-range communication signal to the communication signal processing unit by the connection gating portion may include: performing the short-range communication signal by using a switch or a duplexer. Optionally connected to the communication signal processing unit.
- an embodiment of the present invention further provides a mobile terminal, where the mobile terminal is provided with any of the short-range communication devices provided by the embodiments of the present invention, and thus the corresponding beneficial technical effects can also be achieved. Detailed description will not be repeated here.
- the short-distance communication device provided by the embodiment of the present invention and the working method thereof, the mobile terminal, wherein the antenna is a coil for driving the film vibration in the audio output device of the mobile terminal; the connection gating portion can select the antenna from the audio output device
- the ground signal is connected to the communication signal processing unit to cause the communication signal processing unit to process the short-range communication signal received or transmitted by the antenna.
- an existing coil in an audio output device in a mobile terminal such as a mobile phone is used as an antenna in short-range communication, and the coil is connected to the communication signal processing unit through a connection strobe portion, thereby completing reception of a short-range communication signal, Processing and transmission, no need to specially make a short-distance communication coil, thereby greatly saving space, facilitating better layout, and avoiding the problem that the communication coil is disposed on the outer casing of the mobile terminal and the reliability of the antenna is lowered.
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Abstract
一种近距离通信装置及其工作方法、移动终端，涉及通信技术领域，用以解决现有技术中移动终端中近距离通信天线体积大、可靠性差、布局困难的问题。所述装置包括天线、连接选通部和通信信号处理部；其中，所述天线，设置为：为移动终端的音频输出装置中驱动薄膜振动的线圈，接收或发射近距离通信信号；所述连接选通部，设置为：将所述天线从所述音频输出装置中可选通地连接到所述通信信号处理部；所述通信信号处理部，设置为：对所述天线接收或发射的近距离通信信号进行处理。本发明实施例可用于具有音频输出功能的终端间的近距离通信中。
Description
本发明涉及通信技术领域，特别是涉及一种近距离通信装置及其工作方法、移动终端。
随着无线终端设备的普及和快速更新换代以及全球移动通信技术的迅速发展，近距离无线通信技术作为一种非接触式识别和互联技术，越来越广泛地被应用在移动终端设备、个人电脑和智能控件工具间。
近距离无线通信技术主要有三个标准组织：一是EPC Global(电子产品代码全球，electronic product code Global)组织，应用地区主要是南北美洲，频段包括902-928MHz和13.56MHz；二是ISO(国际标准化组织，International Organization for Standardization)，应用地区主要是欧洲，频段包括860-950MHz；三是Ubiquitous ID Center(泛在中心)组织，应用地区主要是日本，频段包括2.45GHz和13.56MHz。
另外，Sony于2008年和Panasonic、日立、三星电子等国际知名厂商共组TransferJet Consortium(联合)，以借此共同确立TransferJet的相互连接规格，并以TransferJet的普及化为其目标。TransferJet为一种可将影像内容或音乐档，进行高速传输的无线传输技术，其资料传输速度最高可达560Mbps。且TransferJet有别于现行一般无线传输技术，在进行传输时无须繁复的连接设定也不需无线网络桥接器(access point)，只需将搭载TransferJet的产品靠在一起就可进行资料传输，其中心频率为4.48GHz。
在智能终端设备中，通常配置的无线通信天线包括有主天线和分集天线、WIFI(无线保真，WIreless-FIdelity)天线、GPS(全球定位系统，Global Positioning System)天线、蓝牙天线等，这些天线的通信频率较高，天线一
般呈杆状。但近距离通信通信频率较低，采用杆状天线将不能对信号进行有效的发射和接收，因此用于近距离通信的天线一般都需要盘成线圈，往往会占用较大的体积。但对于体积越来越小、功能越来越强大的终端设备而言，天线越多所需要的空间相应也就越多，而且还要考虑各天线间隔离度等问题，使得终端设备的天线布局和设计越来越具有挑战。盘成线圈的近距离通信天线更是加重了天线设计的困难。
例如，现今智能终端设备中的NFC(近距离通信，Near Field Communication)天线多数为金属线圈形式的FPC(柔性电路板，Flexible Printed Circuit)天线，它通常被贴在电池的一面或者外壳内表面，这样带来的缺陷是：电池和外壳在反复拆装后，会造成NFC天线出现磨损或变形等情况，最终导致NFC天线性能变差。
发明内容
本发明要解决的技术问题是提供一种近距离通信装置及其工作方法、移动终端，用以解决现有技术中移动终端中近距离通信天线体积大、可靠性差、布局困难的问题。
为解决上述技术问题，一方面，本发明提供一种近距离通信装置，包括天线、连接选通部和通信信号处理部；其中，所述天线，设置为：为移动终端的音频输出装置中驱动薄膜振动的线圈，接收或发射近距离通信信号；所述连接选通部，设置为：将所述天线从所述音频输出装置中可选通地连接到所述通信信号处理部；所述通信信号处理部，设置为：对所述天线接收或发射的近距离通信信号进行处理。
可选的，所述音频输出装置包括喇叭和/或听筒。
可选的，所述连接选通部包括开关或双工器。
可选的，所述连接选通部与所述通信信号处理部之间还设置有频率调整部，设置为：对所述连接选通部与所述通信信号处理部之间传输的信号进行
频率调整。
另一方面，本发明的实施例还提供一种近距离通信装置的工作方法，包括：通过天线接收或发射近距离通信信号，所述天线为移动终端的音频输出装置中驱动薄膜振动的线圈；通过连接选通部将所述近距离通信信号可选通地连接到所述通信信号处理部；通过所述通信信号处理部对所述近距离通信信号进行处理。
可选的，所述通过连接选通部将所述近距离通信信号可选通地连接到所述通信信号处理部包括：通过开关或双工器将所述近距离通信信号可选通地连接到所述通信信号处理部。
另一方面，本发明的实施例还提供一种移动终端，所述移动终端设置有本发明提供的任一种近距离通信装置。
本发明的实施例提供的近距离通信装置及其工作方法、移动终端，其天线为移动终端的音频输出装置中驱动薄膜振动的线圈；连接选通部能够将天线从音频输出装置中可选通地连接到通信信号处理部，从而使通信信号处理部对天线接收或发射的近距离通信信号进行处理。这样，利用手机等移动终端中的音频输出装置中现成的线圈作为近距离通信中的天线，并通过连接选通部将该线圈与通信信号处理部相连，即可完成近距离通信信号的接收、处理和发送，无需专门制作一个近距离通信线圈，从而大大节省了空间，有利于更好的布局，同时也避免了将通信线圈设置在移动终端的外壳上而使天线可靠性降低的问题。
附图概述
图1是本发明实施例提供的近距离通信装置的一种结构示意图；
图2是本发明实施例提供的近距离通信装置与音频输出装置一种连接关系示意图；
图3是本发明实施例提供的近距离通信装置与音频输出装置另一种连接
关系示意图；
图4是本发明实施例提供的近距离通信装置与音频输出装置又一种连接关系示意图；
图5是本发明实施例提供的近距离通信装置与音频输出装置又一种连接关系示意图；
图6是本发明实施例提供的近距离通信装置与音频输出装置又一种连接关系示意图；
图7是本发明实施例提供的近距离通信装置与音频输出装置又一种连接关系示意图；
图8是本发明实施例提供的近距离通信装置与音频输出装置在移动终端中的一种布局示意图；
图9是本发明实施例提供的近距离通信装置与音频输出装置在移动终端中的另一种布局示意图；
图10是本发明实施例提供的近距离通信装置与音频输出装置在移动终端中的又一种布局示意图；
图11是利用本发明实施例提供的近距离通信装置进行近距离通信的一种示意图；
图12是利用本发明实施例提供的近距离通信装置进行近距离通信的另一种示意图；
图13是本发明实施例提供的近距离通信装置的工作方法的一种流程图。
本发明的较佳实施方式
以下结合附图对本发明进行详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不限定本发明。
如图1所示，本发明的实施例提供一种近距离通信装置，一般用于移动终端中，该近距离通信装置包括天线1、连接选通部2和通信信号处理部3；
其中，天线1为移动终端的音频输出装置中驱动薄膜振动的线圈，用于接收或发射近距离通信信号；连接选通部2，用于将天线1从音频输出装置中可选通地连接到通信信号处理部3；通信信号处理部3，用于对天线1接收或发射的近距离通信信号进行处理。
本发明的实施例提供的近距离通信装置，包括天线1、连接选通部2和通信信号处理部3。其中，天线1为移动终端的音频输出装置中驱动薄膜振动的线圈；连接选通部2，能够将天线1从音频输出装置中可选通地连接到通信信号处理部3，从而使通信信号处理部3对天线1接收或发射的近距离通信信号进行处理。这样，利用手机等移动终端中的音频输出装置中现成的线圈作为近距离通信中的天线，并通过连接选通部2将该线圈与通信信号处理部3相连，即可完成近距离通信信号的接收、处理和发送，无需专门制作一个近距离通信线圈，从而大大节省了空间，有利于更好的布局，同时也避免了将通信线圈设置在移动终端的外壳上而使天线可靠性降低的问题。
此外，当终端设备采用金属外壳时，避免将近距离通信天线贴在金属外壳的内表面，还可以避免金属对近距离电磁信号的屏蔽，从而提高电磁信号的传输质量。
需要说明的是，传统的天线辐射一般都为远场传输，远场信号的强度与信号传输的距离成反比。但与传统的天线不同，本实施例中的近距离通信利用的是天线辐射的近场信号进行信号传输。与远场信号相比，近场信号衰落的更快，往往和距离的二次方或三次方成反比。这种近场也称为感应场，近距离通信天线正是利用该近区电磁感应场来进行耦合和信息传输的。
手机等通信终端都具有通话功能，根据电话的发声和传声原理可知，听筒和/或喇叭等音频输出装置的发声也是由通电线圈驱动薄膜等振动元件从而实现振动发声的。虽然可以利用音频输出装置中的线圈作为近距离通信天线来进行承担信号接收和发送的任务，但还需要解决音频信号与近距离通信
信号如何互不影响地共用同一线圈的问题，从而在不增加移动终端的体积的条件下保证近距离通信信号质量良好且原有的音频输出装置性能不受影响。
本实施例是通过连接选通部2来将线圈从音频输出装置中妥善地接入通信信号处理部3的。可选的，连接选通部2可以为任何能够实现上述线圈共用的装置，本发明的实施例对此不做限定，例如，连接选通部2可以为开关或双工器等。
进一步的，天线1接收的近距离通信信号的频率一般为几十兆到几百兆，而通信信号处理部3进行信号处理的频率可能与天线1接收到的信号的频率并不匹配，因此，可选的，在连接选通部2与通信信号处理部3之间，还可以设置有频率调整部，用于对连接选通部2与通信信号处理部3之间传输的信号进行频率调整，以使二者间传输信号的频率相匹配。
下面通过具体的实施例来对本发明提供的近距离通信装置进行详细的说明。
如图2所示，在本发明的一个实施例中，采用开关21作为连接选通部2将喇叭电路中的线圈连接到近距离通信装置中。具体而言，本实施例中，以喇叭中的线圈11作为天线，来接收自由空间中的近场通讯电磁信号。此时，开关21切换到近距离通信支路，电磁信号经滤波器22滤波后，即可将非近距离通信频段的信号滤除，这样，所需频段的近距离通信电磁信号就可以经频率调整部6进行频率调整，最后进入通信信号处理部3进行信号处理，从而完成近距离通信信号的接收和处理。通信信号处理部3完成信号处理后，可以沿逆向通路将电磁信号依次经频率调整部6、滤波器22和开关21后，由喇叭中的线圈11辐射到自由空间中。
本实施例中，当需要喇叭播放声音时，只需将开关21切换到音频支路，音频处理芯片中的音频信号就可经D类功放和开关21后，由喇叭播放出声音。
如图3所示，在本发明的另一个实施例中，采用开关21作为连接选通部2将听筒中的线圈12作为天线，来接收自由空间中的近场通讯电磁信号，此时，开关21切换到近距离通信支路，电磁信号经滤波器22滤波后，即可将非近距离通信频段的信号滤除，这样，所需频段的近距离通信电磁信号就可以经频率调整部6进行频率调整，最后进入通信信号处理部3进行信号处理，从而完成近距离通信信号的接收和处理。通信信号处理部3完成信号处理后，可以沿逆向通路将电磁信号依次经调整部6、滤波器22和开关21后，由听筒中的线圈12辐射到自由空间去。
本实施例中，当需要听筒播放声音时，只需将开关21切换到音频支路，音频处理芯片中的音频信号就可以经开关后由听筒播放出声音了。
图2和图3所示的实施例分别以喇叭和听筒中的线圈为天线实现近距离通信信号的接收，但本发明的实施不限于此。为了使接收到的近距离通信信号具有更大的强度，优选的，如图4所示，还可以同时利用喇叭中的线圈11和听筒中的线圈12来接收近距离通信信号，与图2和图3所示的实施例不同的是，此时需用合路器4将线圈11和线圈12接收到的信号一起通过开关21向近距离通信支路输出。
当需要喇叭播放声音时，只需将开关21切换到音频支路，并将音频支路中的子开关211切换到喇叭通路，由音频控制信号控制喇叭工作，音频处理芯片中的音频信号就可经D类功放、子开关211和开关21后，由喇叭播放出来；当需要听筒播放声音时，将开关21切换到音频支路并将音频支路中的子开关211切换到听筒通路，由音频控制信号控制听筒工作，音频处理芯片中的音频信号就可经子开关211和开关21后，由听筒播放出来。
在图2至图4所示的实施例中，都是采用开关21作为连接选通部2将音频输出装置中的线圈连接到近距离通信装置中，但这种情况下，开关21单刀双掷，同一时刻音频支路和近距离通信支路只能有一路与线圈接通，二者不
能同时工作。为了解决这个问题，在本发明的一些实施例中，还可以采用双工器来将音频输出装置中的线圈连接到近距离通信装置中。由于采用了双工器，音频支路和近距离通信支路可以同时工作互不影响。
例如，如图5所示，在本发明的一个实施例中，采用双工器23作为连接选通部2将喇叭电路中的线圈连接到近距离通信装置中。与图2所示实施例的原理类似，本实施例中，喇叭中的线圈11接收到的电磁通信信号，经双工器23后，只有近距离通信频段的电磁信号可以进入近距离通信支路完成近距离通信；与此同时，音频处理芯片中的音频信号也可经D类功放和双工器23后由喇叭播放出来，从而实现喇叭支路和近距离通信支路的同时工作。
如图6所示，在本发明的另一个实施例中，采用双工器23作为连接选通部2将听筒电路中的线圈12连接到近距离通信装置中。与图3所示实施例的原理类似，听筒中的线圈12接收到的电磁信号，经双工器23后，只有近距离通信频段的电磁信号可以进入近距离通信通路完成近距离通信；同时，音频处理芯片中的音频信号也可经双工器后，由听筒播放出来。从而实现听筒支路和近距离通信支路的同时工作。
如图7所示，在本发明的另一个实施例中，采用双工器23作为连接选通部2将听筒中的线圈12和喇叭中的线圈11连接到近距离通信装置中。与附图4所示的实施例类似，本实施例中，喇叭和听筒中的线圈11和12接收到的电磁信号后，经合路器4合并到一起输入双工器23。在双工器23的作用下，仅有近距离通信频段的电磁信号可以进入近距离通信支路完成近距离通信。当需要喇叭播放声音时，可以将音频通路中的子开关211切换到喇叭通路，由音频控制信号控制喇叭工作，音频处理芯片中的音频信号就可经D类功放、子开关211和双工器23后，由喇叭播放出来；当需要听筒播放声音时，可以将音频通路中的子开关211切换到听筒通路，由音频控制信号控制听筒工作，音频处理芯片中的音频信号就可经子开关211和双工器23后，由听筒
播放出来，从而实现了音频输出支路和近距离通信支路的同时工作。
上述实施例中，由于近距离通信装置要利用听筒或喇叭中的线圈，根据听筒和喇叭在移动终端的位置的不同，近距离通信装置的位置和布局也会相应不同。例如，图8至图10分别为近距离通信装置利用喇叭中的线圈、利用听筒中的线圈，以及利用喇叭和听筒中的线圈时的布局示意图。
本发明实施例提供的近距离通信装置可以安装在手机等移动终端中，从而实现移动终端之间的近距离通信。图11为本发明移动终端7和移动终端8之间近距离通信示意图。当移动终端7和8靠近时，通过喇叭线圈71和听筒线圈81进行数据传输。图12为移动终端7和移动终端9之间近距离通信示意图。当移动终端7进入移动终端9的感应区时，通过喇叭线圈71和普通的近距离通信线圈91实现近距离通信。
相应的，如图13所示，本发明的实施例还提供一种近距离通信装置的工作方法，包括：
S11，通过天线接收或发射近距离通信信号，所述天线为移动终端的音频输出装置中驱动薄膜振动的线圈；
S12，通过连接选通部将所述近距离通信信号可选通地连接到所述通信信号处理部；
S13，通过所述通信信号处理部对所述近距离通信信号进行处理。
本发明的实施例提供的近距离通信装置的工作方法，首先通过天线为移动终端的音频输出装置中驱动薄膜振动的线圈，然后通过连接选通部将天线从音频输出装置中可选通地连接到通信信号处理部，从而使通信信号处理部对天线接收或发射的近距离通信信号进行处理。这样，利用手机等移动终端中的音频输出装置中现成的线圈作为近距离通信中的天线，并通过连接选通部将该线圈与通信信号处理部相连，即可完成近距离通信信号的接收、处理和发送，无需专门制作一个近距离通信线圈，从而大大节省了空间，有利于
更好的布局，同时也避免了将通信线圈设置在移动终端的外壳上而使天线可靠性降低的问题。
可选的，在步骤S12中，通过连接选通部将所述近距离通信信号可选通地连接到所述通信信号处理部具体可包括：通过开关或双工器将所述近距离通信信号可选通地连接到所述通信信号处理部。
相应的，本发明的实施例还提供一种移动终端，所述移动终端设置有本发明的实施例提供的任一种近距离通信装置，因此也能实现相应的有益技术效果，前文已经进行了详细的说明，此处不再赘述。
尽管为示例目的，已经公开了本发明的优选实施例，本领域的技术人员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限于上述实施例。
本发明的实施例提供的近距离通信装置及其工作方法、移动终端，其天线为移动终端的音频输出装置中驱动薄膜振动的线圈；连接选通部能够将天线从音频输出装置中可选通地连接到通信信号处理部，从而使通信信号处理部对天线接收或发射的近距离通信信号进行处理。这样，利用手机等移动终端中的音频输出装置中现成的线圈作为近距离通信中的天线，并通过连接选通部将该线圈与通信信号处理部相连，即可完成近距离通信信号的接收、处理和发送，无需专门制作一个近距离通信线圈，从而大大节省了空间，有利于更好的布局，同时也避免了将通信线圈设置在移动终端的外壳上而使天线可靠性降低的问题。
Claims (7)
- 一种近距离通信装置，包括天线、连接选通部和通信信号处理部；其中，所述天线，设置为：为移动终端的音频输出装置中驱动薄膜振动的线圈，接收或发射近距离通信信号；所述连接选通部，设置为：将所述天线从所述音频输出装置中可选通地连接到所述通信信号处理部；所述通信信号处理部，设置为：对所述天线接收或发射的近距离通信信号进行处理。
- 根据权利要求1所述的装置，其中，所述音频输出装置包括喇叭和/或听筒。
- 根据权利要求1所述的装置，其中，所述连接选通部包括开关或双工器。
- 根据权利要求1-3中任一项所述的装置，其中，所述连接选通部与所述通信信号处理部之间还设置有频率调整部，设置为：对所述连接选通部与所述通信信号处理部之间传输的信号进行频率调整。
- 一种近距离通信装置的工作方法，包括：通过天线接收或发射近距离通信信号，所述天线为移动终端的音频输出装置中驱动薄膜振动的线圈；通过连接选通部将所述近距离通信信号可选通地连接到所述通信信号处理部；通过所述通信信号处理部对所述近距离通信信号进行处理。
- 根据权利要求5所述的方法，其中，所述通过连接选通部将所述近距离通信信号可选通地连接到所述通信信号处理部包括：通过开关或双工器将所述近距离通信信号可选通地连接到所述通信信号 处理部。
- 一种移动终端，所述移动终端设置有权利要求1至4中任一项所述的近距离通信装置。
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| CN202474188U (zh) * | 2011-12-06 | 2012-10-03 | 上海安费诺永亿通讯电子有限公司 | 一种外置式天线结构 |
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| CN101232124A (zh) * | 2008-01-11 | 2008-07-30 | 邱小军 | 一种制作近场通信天线的方法 |
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| CN104009295A (zh) * | 2013-02-26 | 2014-08-27 | 深圳富泰宏精密工业有限公司 | 近场通信天线及具有该天线的便携式电子装置 |
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| CN105099523A (zh) | 2015-11-25 |
| CN105099523B (zh) | 2019-03-22 |
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