WO2014023238A1 - 共享终端耳机fm功能的cmmb天线设备及终端 - Google Patents

共享终端耳机fm功能的cmmb天线设备及终端 Download PDF

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Publication number
WO2014023238A1
WO2014023238A1 PCT/CN2013/081024 CN2013081024W WO2014023238A1 WO 2014023238 A1 WO2014023238 A1 WO 2014023238A1 CN 2013081024 W CN2013081024 W CN 2013081024W WO 2014023238 A1 WO2014023238 A1 WO 2014023238A1
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Prior art keywords
cmmb antenna
terminal
cmmb
earphone
antenna
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PCT/CN2013/081024
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English (en)
French (fr)
Inventor
郭健
Original Assignee
中兴通讯股份有限公司
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Publication of WO2014023238A1 publication Critical patent/WO2014023238A1/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/27Adaptation for use in or on movable bodies
    • H01Q1/273Adaptation for carrying or wearing by persons or animals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/44Details 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
    • H01Q1/46Electric supply lines or communication lines

Definitions

  • the present invention relates to the field of communications, and in particular to an implementation scheme of a CMMB (China Mobile Multimedia Broadcasting) antenna (ANTENNA), which is suitable for a CMMB antenna design of a terminal device (such as a smart phone), and is more specific.
  • CMMB China Mobile Multimedia Broadcasting
  • ANTENNA CMMB antenna design of a terminal device
  • the invention relates to a CMMB antenna device and a terminal for sharing a terminal earphone socket.
  • main antenna MAIN ANTENNA
  • WCDMA/TD-SCDMA/CDMA wireless fidelity
  • WIFI/BT antenna wireless fidelity
  • GPS Global Positioning System, Global Positioning System
  • CMMB Antenna FM (Frequency Modulation) antenna
  • NFC Near Field Communication
  • WIFI, BT, and GPS in peripheral functions are already mandatory functions, and the increasingly popular NFC and indispensable main antennas are reserved for FM or CMMB antennas during the actual design process. There is very little design space.
  • FIG 1 shows a conventional handset antenna layout.
  • a conventional antenna layout solution will now be described with reference to Figure 1.
  • area 1 is typically used to set up the main antenna
  • area 2 and area 3 are used to set up the GPS antenna, WIFI/BT antenna or diversity antenna
  • area 4 and area 5 are used to set up the WIFI/BT antenna or NFC antenna.
  • the conventional design of the CMMB antenna has both pull rod and built-in solutions.
  • Tie rod type CMMB The antenna is generally embedded or stylus integrated. It belongs to the fake internal antenna scheme. It takes up most of the mobile phone body space and is set in area 4 or area 5.
  • the built-in CMMB antenna is generally a bracket antenna, which occupies the space of the mobile phone body and is set in area 1, area 2 or area 3, but the smartphone needs to meet the main at the same time.
  • the antenna layout scheme of the built-in CMMB antenna is also not desirable. Summary of the invention
  • An object of the embodiments of the present invention is to provide a CMMB antenna device and a terminal capable of realizing a shared terminal earphone FM function of a CMMB antenna solution under the premise of ensuring sound quality.
  • a CMMB antenna device that shares the FM function of the terminal headset, including a headphone plug portion and a CMMB antenna body whose one end is electrically connected to the headphone plug portion.
  • the earphone plug portion is configured to be plugged into a corresponding terminal earphone socket
  • the CMMB antenna body portion is configured to transmit and receive signals.
  • the CMMB antenna device of the shared terminal headset FM function further includes a CMMB antenna switching portion having at least one adapter earphone socket electrically connected to the other end of the main body portion of the CMMB antenna, configured to be plugged into the user's earphone. .
  • the external antenna of the main portion of the CMMB antenna is a metal outer shielded wire of an audio wire, a left channel wire, and a right channel wire.
  • the CMMB antenna switching portion further includes a GND path, an audio path, a left channel path, and a right channel path electrically connected to the switching earphone socket and connected in parallel with each other.
  • the GND path includes a band pass filter and magnetic beads disposed in parallel.
  • a terminal comprising a CMMB antenna device sharing a terminal headset FM function, wherein the CMMB antenna device comprises an earphone plug portion and an end portion and the earphone plug portion are electrically
  • the connected CMMB antenna main body portion is configured to be plugged into a corresponding terminal earphone socket, and the CMMB antenna main body portion is configured to transmit and receive signals.
  • the CMMB antenna device further includes a CMMB antenna switching portion having at least one adapter earphone socket electrically connected to the other end of the CMMB antenna body portion and configured to be plugged into the user's earphone.
  • the external antenna of the main portion of the CMMB antenna is a metal outer shielded wire of an audio wire, a left channel wire, and a right channel wire.
  • the CMMB antenna switching portion further includes a GND path, an audio path, a left channel path, and a right channel path electrically connected to the switching earphone socket and connected in parallel with each other.
  • the GND path includes a band pass filter and magnetic beads disposed in parallel. It can be seen from the technical solutions of the embodiments of the present invention that the embodiments of the present invention have the following beneficial effects:
  • the CMMB antenna device and the terminal of the shared terminal earphone socket provided by the embodiment of the present invention can meet the function of the CMMB antenna, and can adapt the earphone socket corresponding to the earphone socket selected by the user according to the user requirement, thereby satisfying the user. Pursuit of sound quality;
  • Figure 1 is a schematic diagram of a conventional antenna layout
  • FIG. 2 is a schematic structural diagram of a CMMB antenna device according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a circuit of a CMMB antenna switching portion according to an embodiment of the present invention. detailed description
  • CMMB complementary metal-oxide-semiconductor
  • a simple earphone CMMB antenna cannot meet the stringent requirements of the user for earphone audio.
  • the implementation of the antenna is capable of adapting the corresponding earphone while satisfying the audio index item while sharing the earphone FM function. The implementation process will be described in detail below.
  • a CMMB antenna device for sharing a terminal earphone FM function includes an earphone plug portion 110 and one end and the earphone plug portion 110.
  • the CMMB antenna body portion 120 is electrically connected, the earphone plug portion 110 is configured to be plugged into a corresponding terminal earphone socket, and the CMMB antenna body portion 120 is configured to transmit and receive signals.
  • the working frequency band of the CMMB antenna device is 474 ⁇ 794MHz.
  • the resonant wavelength is empirically about 130 ⁇ 160mm, but in the actual design environment, the reference medium is also changed and the antenna itself is Impedance conversion is taken into account.
  • the FM operating frequency band is 88 ⁇ 108MHz.
  • the CMMB antenna device of the shared terminal headset FM function further includes a CMMB antenna switching portion 130 having at least one adapter earphone socket electrically connected to the other end of the CMMB antenna body portion 120, configured to be connected with the user's earphone. Plug in.
  • the earphone plug portion 110 of the CMMB antenna device is configured to be plugged into the terminal earphone socket corresponding to the terminal; likewise, the earphone socket of the CMMB antenna switching portion 130 is also configured to be docked with the user using the earphone.
  • the CMMB antenna switching portion 130 may have a plurality of earphone sockets to accommodate the use of different standard earphones, so that the CMMB antenna function can be selected according to user requirements.
  • the earphone is adapted to the earphone socket, thereby satisfying the user's pursuit of sound quality.
  • the external antenna of the CMMB antenna main body portion 120 is a metal outer shielded wire of an audio wire, a left channel wire, and a right channel wire.
  • the CMMB antenna main body portion 120 is realized by the MIC of the audio and the outer shielded wire of the left and right channel wires.
  • the shielded wire ensures that the audio wire is not interfered by external signals.
  • the shielded wire is made of metal material. On the basis of satisfying a certain line length, it can be equivalent to an external antenna.
  • the external antenna of the CMMB antenna main body portion 120 may also be an embodiment of a metal outer shielded wire other than the above-mentioned audio wire, left channel wire and right channel wire, for example, using a special metal portion as a The external antenna of the CMMB antenna main body portion 120 will not be described in detail herein.
  • the CMMB antenna switching portion 130 includes an adapter earphone socket, and a GND path, an audio path, a left channel path, and a right channel path electrically connected to the adapter headphone jack and connected in parallel.
  • the GND path includes a band pass filter and magnetic beads disposed in parallel.
  • FIG. 3 it is a circuit diagram of a CMMB antenna switching portion 130 according to an embodiment of the present invention.
  • Audio MIC
  • left and right channels are reserved for one device bit on each of the three series branches.
  • inductors are usually used, and magnetic beads are not excluded.
  • the magnetic beads are dedicated to suppress signal lines and power lines. High frequency noise and spike interference, as well as the ability to absorb electrostatic pulses.
  • magnetic beads are used to absorb ultra-high frequency signals, such as RF (Radio Frequency) circuits, PLL (Phase Locked Loop), oscillating circuits, and ultra-high frequency memory circuits (DDRSDRAM, RAMBUS, etc.).
  • RF Radio Frequency
  • PLL Phase Locked Loop
  • DDRSDRAM ultra-high frequency memory circuits
  • the inductor is an energy storage component used in an LC oscillation circuit, a low-frequency filter circuit, etc., and its application frequency range rarely exceeds 50 MHz.
  • Magnetic beads have high resistivity and permeability, equivalent to series connection of resistance and inductance, but both resistance and inductance vary with frequency.
  • a magnetic bead L1 is disposed on the audio path
  • a magnetic bead L2 is disposed on the left channel path
  • a magnetic bead L3 is disposed on the right channel path.
  • Parallel branch on the GND path, branch a The LC series circuit is used to form a band-pass filter with a tuning frequency around 100 MHz.
  • the branch b is connected in series with the magnetic beads L4, and the magnetic beads are in a high-impedance state near 100 MHz.
  • the LC series circuit of the branch a is high-passed, and the FM signal passes, and is transmitted to the terminal earphone socket through the CMMB earphone antenna, and the FM signal is analyzed by the terminal;
  • the LC circuit of the branch a has a high resistance characteristic to 474 to 794 MHz, the magnetic beads of the branch b display the path to the CMMB signal, and the CMMB signal can be normally received.
  • the design starting point is from the perspective of user experience, and the design purpose is that the user can select the earphone according to his or her personality preference regardless of whether the user uses CMMB or FM, and is not limited to the traditional CMMB earphone.
  • the earphone plug portion 110 of the CMMB antenna device is configured to be plugged into the terminal earphone socket corresponding to the terminal; likewise, the earphone socket of the CMMB antenna switching portion 130 is also configured to interface with the user using the earphone.
  • the embodiment of the present invention further provides a terminal, which includes a CMMB antenna device sharing a terminal headset FM function.
  • the CMMB antenna device includes an earphone plug portion 110 and one end and the earphone plug.
  • the portion 110 is electrically connected to the CMMB antenna body portion 120, the earphone plug portion 110 is configured to be plugged into a corresponding terminal earphone socket, and the CMMB antenna body portion 120 is configured to transmit and receive signals.
  • the working frequency band of the CMMB antenna device is 474 ⁇ 794MHz.
  • the resonant wavelength is empirically about 130 ⁇ 160mm, but in the actual design environment, the reference medium is also changed and the antenna itself is Impedance conversion is taken into account.
  • the FM operating frequency band is 88 ⁇ 108MHz.
  • the CMMB antenna device further includes a CMMB antenna switching portion 130 having at least one adapter earphone socket electrically connected to the other end of the CMMB antenna body portion 120, configured to be plugged into the user's earphone.
  • the earphone socket of the CMMB antenna switching portion 130 may be multiple to meet the use of different standard earphones of the user, thereby satisfying
  • the earphone socket corresponding to the user's selected earphone socket can be adapted according to the user's requirements, thereby satisfying the user's pursuit of the sound quality.
  • the external antenna of the CMMB antenna body portion 120 is a metal outer shielded wire of an audio wire, a left channel wire, and a right channel wire.
  • the CMMB antenna main body portion 120 is realized by the MIC of the audio and the outer shielded wire of the left and right channel wires.
  • the shielded wire ensures that the audio wire is not interfered by external signals.
  • the shielded wire is made of metal material. On the basis of satisfying a certain line length, it can be equivalent to an external antenna.
  • the external antenna of the CMMB antenna main body portion 120 may also be an embodiment of a metal outer shielded wire other than the above-mentioned audio wire, left channel wire and right channel wire, for example, using a special metal. Part of the external antenna as the main body portion 120 of the CMMB antenna will not be described in detail herein.
  • the CMMB antenna switching portion 130 includes an adapter earphone socket, and a GND path, an audio path, a left channel path, and a right channel path electrically connected to the switching earphone socket and connected in parallel with each other.
  • the GND path includes a band pass filter and magnetic beads disposed in parallel.
  • FIG. 3 it is a circuit diagram of a CMMB antenna switching portion 130 according to an embodiment of the present invention.
  • Audio MIC
  • left and right channels are reserved for one device bit on each of the three series branches.
  • the inductor is usually used, and the magnetic beads are not excluded.
  • the magnetic beads L1 are arranged on the audio path.
  • a magnetic bead L2 is disposed on the left channel path, and a magnetic bead L3 is disposed on the right channel path.
  • a parallel branch is used on the GND path, and the branch a uses an LC series circuit (including the series magnetic beads L and the capacitor C) to form a band pass filter with a tuning frequency near 100 MHz; the branch b branch is connected with a magnetic bead L4, The magnetic beads are in a high-impedance state near 100MHz.
  • the LC series circuit of the branch a is high-passed, and the FM signal passes, and is transmitted to the terminal earphone socket through the CMMB earphone antenna, and the FM signal is analyzed by the terminal;
  • the LC circuit of the branch a It has a high-impedance characteristic for 474 ⁇ 794MHz, but the magnetic beads of branch b show the path to the CMMB signal, and the CMMB signal can be received normally.
  • the present invention provides a CMMB antenna device and a terminal for sharing a terminal earphone FM function, wherein the CMMB antenna device of the shared terminal earphone FM function includes a headphone plug portion and a CMMB antenna electrically connected at one end to the earphone plug portion.
  • the earphone plug portion is configured to be plugged into a corresponding terminal earphone socket, and the CMMB antenna main body portion is configured to transmit and receive signals.
  • the invention can realize the CMMB antenna scheme under the premise of ensuring the sound quality.

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  • Headphones And Earphones (AREA)
  • Details Of Aerials (AREA)

Abstract

本发明提供了一种共享终端耳机FM功能的CMMB天线设备及终端,其中,所述共享终端耳机FM功能的CMMB天线设备,包括耳机插头部分以及一端与所述耳机插头部分电性连接的CMMB天线主体部分,所述耳机插头部分配置为与对应的终端耳机插座插接,所述CMMB天线主体部分配置为信号的收发。本发明能够在保证音质品质的前提下,实现CMMB天线方案。

Description

共享终端耳机 ΓΜ功能的 CMMB天线设备及终端 技术领域
本发明涉及通信领域, 具体而言, 涉及一种 CMMB ( China Mobile Multimedia Broadcasting, 中国移动多媒体广播)天线 ( ANTENNA ) 的实 现方案, 适用于终端设备(例如智能手机)的 CMMB天线设计, 更为具体 地, 涉及一种共享终端耳机插座的 CMMB天线设备及终端。 背景技术
目前, 随着智能手机(Smart Phone )功能愈来愈为齐全, 其在集合了 众多硬件功能的情形下, 必然需要多天线共存, 因此在智能手机的设计过 程中, 天线方案的实现方式及其区域选择便是设计人员需要重点给予考虑 的地方。
通常状况下,设计人员考虑的功能天线主要有如下几种:主天线( MAIN ANTENNA ) ( WCDMA/TD-SCDMA/CDMA )、 WIFI/BT 天线、 GPS ( Global Positioning System, 全球定位系统) 天线、 CMMB 天线、 FM ( Frequency Modulation, 调频广播)天线、 NFC ( Near Field Communication, 近距离无 线通讯技术)天线。 从当前的普遍需求来看, 外设功能中 WIFI、 BT、 GPS 已经是必选项功能, 加上日渐普及的 NFC和不能或缺的主天线, 在实际设 计过程中, 留给 FM或 CMMB天线的设计空间已经很少。
图 1示出了一种常规的手机天线布局, 下面通过图 1对传统的天线布 局解决方案加以说明。 对于现在的智能手机天线设计, 通常, 区域 1 用于 设置主天线, 区域 2和区域 3用于设置 GPS天线、 WIFI/BT天线或分集天 线, 区域 4和区域 5用于设置 WIFI/BT天线或 NFC天线。 在实际设计时, CMMB 天线的常规设计方案有拉杆式和内置式两种方案。 拉杆式 CMMB 天线一般分嵌入式或者手写笔一体式两种形式, 属于假内置天线方案, 其 占用手机机体空间大多数选择设置于区域 4或区域 5,但是在智能手机断板 设计流行的今天, 其侧边空间考虑到电池的占用, 因此此种体现布置方式 很难加以实现; 内置 CMMB天线一般为支架天线, 占用手机机体空间选择 设置于区域 1、区域 2或区域 3,然而在智能手机需要同时满足主天线、 GPS 天线、 WIFI/BT天线或分集天线功能的设计前提下, 该内置 CMMB天线的 天线布局方案亦不可取。 发明内容
本发明实施例的目的在于提供一种能够在保证音质品质的前提下, 实 现 CMMB天线方案的共享终端耳机 FM功能的 CMMB天线设备及终端。
为了达到本发明实施例的目的, 本发明实施例采用以下技术方案实现: 一种共享终端耳机 FM功能的 CMMB天线设备, 包括耳机插头部分以 及一端与所述耳机插头部分电性连接的 CMMB天线主体部分,所述耳机插 头部分配置为与对应的终端耳机插座插接,所述 CMMB天线主体部分配置 为信号的收发。
优选地, 所述共享终端耳机 FM功能的 CMMB天线设备还包括至少具 有一个转接耳机插座的 CMMB天线转接部分, 其电性连接至 CMMB天线 主体部分的另一端, 配置为与用户耳机插接。
优选地, 所述 CMMB天线主体部分的外置天线为音频导线、 左声道导 线以及右声道导线的金属外包屏蔽线。
优选地,所述 CMMB天线转接部分还包括电性连接至该转接耳机插座 的且相互并联的 GND通路、 音频通路、 左声道通路以及右声道通路。
更为优选地, 所述 GND通路包括呈并联设置的带通滤波器以及磁珠。 一种终端,其包括一共享终端耳机 FM功能的 CMMB天线设备,其中, 所述 CMMB天线设备包括耳机插头部分以及一端与所述耳机插头部分电性 连接的 CMMB天线主体部分, 所述耳机插头部分配置为与对应的终端耳机 插座插接, 所述 CMMB天线主体部分配置为信号的收发。
优选地, 所述 CMMB 天线设备还包括至少具有一个转接耳机插座的 CMMB天线转接部分, 其电性连接至 CMMB天线主体部分的另一端, 配 置为与用户耳机插接。
优选地, 所述 CMMB天线主体部分的外置天线为音频导线、 左声道导 线以及右声道导线的金属外包屏蔽线。
优选地,所述 CMMB天线转接部分还包括电性连接至该转接耳机插座 的且相互并联的 GND通路、 音频通路、 左声道通路以及右声道通路。
优选地, 所述 GND通路包括呈并联设置的带通滤波器以及磁珠。 通过上述本发明实施例的技术方案可以看出, 本发明实施例具有以下 有益效果:
( 1 )采用本发明实施例提供的共享终端耳机插座的 CMMB天线设备 及终端, 其在满足 CMMB天线功能的同时, 可根据用户要求, 对用户所选 择的耳机适配对应耳机插座, 从而满足用户对音质品质追求;
( 2 )依据本发明实施例, 针对可实现 FM 功能的用户耳机, 通过对 CMMB天线主体部分的电路进行调谐, 从而在满足 CMMB天线功能的同 时, 不影响该用户耳机 FM功能的实现。 附图说明
图 1是传统的天线布局示意图;
图 2是本发明实施例提供的 CMMB天线设备结构示意图;
图 3是本发明实施例提供的 CMMB天线转接部分电路示意图。 具体实施方式
下面结合附图和具体实施例对本发明所述技术方案作进一步的详细描 述, 以使本领域的技术人员可以更好的理解本发明并能予以实施, 但所举 实施例不作为对本发明的限定。
本发明的发明人发现, 目前, 单纯的耳机 CMMB天线无法满足用户对 耳机音频方面的苛刻要求, 为此, 其提出了一种通过采用耳机插座、 滤波 电路、 地线、 耳机插头实现 CMMB耳机前端天线的实现方案, 其能够在满 足音频指标项的同时, 适配相应耳机, 同时共享耳机 FM 功能。 下面将具 体叙述其实施过程。
参照图 2, 其为本发明实施例提供的 CMMB天线设备结构示意图, 本 发明实施例提供的一种共享终端耳机 FM功能的 CMMB天线设备, 包括耳 机插头部分 110以及一端与所述耳机插头部分 110电性连接的 CMMB天线 主体部分 120, 所述耳机插头部分 110配置为与对应的终端耳机插座插接, 所述 CMMB天线主体部分 120配置为信号的收发。
具体应用中, CMMB天线设备的工作频段为 474~794MHz, 通常自由 空间下, 谐振波长经验上约取值为 130~160mm, 但是在实际设计环境下, 还要将参考介质的变更以及天线自身的阻抗变换考虑在内, 另外, FM工作 频段为 88~108MHz。
优选地, 所述共享终端耳机 FM功能的 CMMB天线设备还包括至少具 有一个转接耳机插座的 CMMB天线转接部分 130, 其电性连接至 CMMB 天线主体部分 120的另一端, 配置为与用户耳机插接。
具体应用时, CMMB天线设备的耳机插头部分 110配置为和终端对应 的终端耳机插座进行插接; 同样地, CMMB天线转接部分 130的耳机插座 也配置为和用户使用耳机进行对接。 在实际实施时, 所述 CMMB天线转接 部分 130 的耳机插座可以为多个, 以适应用户不同标准的耳机的使用, 从 而在满足 CMMB天线功能的同时, 可根据用户要求, 对用户所选择的耳机 适配对应耳机插座, 从而满足用户对音质品质追求。 优选地, 所述 CMMB天线主体部分 120的外置天线为音频导线、 左声 道导线以及右声道导线的金属外包屏蔽线。 具体实施时, CMMB天线主体 部分 120通过音频的 MIC、 左右声道的导线的外包屏蔽线加以实现, 一方 面屏蔽线保证音频导线不受外界信号干扰, 另一方面, 屏蔽线因为是金属 材质, 在满足一定线长的基础上, 可以等效为外置天线使用。
除此之外,所述 CMMB天线主体部分 120的外置天线还可以为除上述 音频导线、 左声道导线以及右声道导线的金属外包屏蔽线的实施例, 例如 采用专门的金属部分作为所述 CMMB天线主体部分 120的外置天线,本文 对此不做过多赘述。
优选地, 所述 CMMB天线转接部分 130包括转接耳机插座, 以及电性 连接至该转接耳机插座的且相互并联的 GND通路、 音频通路、 左声道通路 以及右声道通路。 更为优选地, 所述 GND通路包括呈并联设置的带通滤波 器以及磁珠。
参照图 3, 其为本发明实施例提供的 CMMB天线转接部分 130电路示 意图。 音频(MIC )、 左右声道 3个串联支路上各预留一器件位, 用于后期 音频调试, 通常使用电感, 不排除磁珠使用, 其中, 所述磁珠专用于抑制 信号线、 电源线上的高频噪声和尖峰干扰, 还具有吸收静电脉冲的能力。 在实际应用中, 磁珠用来吸收超高频信号, 像 RF ( Radio Frequency, 射频) 电路、 PLL ( Phase Locked Loop, 锁相回路)、 振荡电路, 含超高频存储器 电路(DDRSDRAM、 RAMBUS 等)都需要在电源输入部分加磁珠, 而电 感是一种蓄能元件, 用在 LC振荡电路, 中低频的滤波电路等, 其应用频率 范围很少超过 50MHZ。 磁珠有很高的电阻率和磁导率, 等效于电阻和电感 串联, 但电阻值和电感值都随频率变化。
例如, 在所述音频通路上设置磁珠 Ll, 在所述左声道通路上设置磁珠 L2, 在所述右声道通路上设置磁珠 L3。 GND通路上采用并联支路, 支路 a 采用 LC 串联电路, 构成带通滤波器, 调谐频点在 100MHz附近; 支路 b 支路上串联磁珠 L4, 磁珠在 100MHz附近呈高阻工作状态。 当用户耳机具 备 FM功能,则当接收 FM信号时,支路 a的 LC串联电路对其表现为高通, 则 FM信号通过, 通过 CMMB耳机天线传输至终端耳机插座, 由终端进行 FM 信号解析; 当用户体验 CMMB 功能时, 虽然支路 a 的 LC 电路对 474~794MHz呈高阻特性, 但是支路 b的磁珠对 CMMB信号显示为通路, CMMB信号可以正常接收。
对于本发明实施例, 其设计出发点是从用户体验角度考虑, 设计目的 在于用户无论使用 CMMB还是 FM,都可以根据自己的个性喜好选择耳机, 而不受限于传统的 CMMB耳机。 具体应用时, CMMB天线设备的耳机插 头部分 110配置为和终端对应的终端耳机插座进行插接; 同样地, CMMB 天线转接部分 130的耳机插座也配置为和用户使用耳机进行对接。
相应地, 本发明实施例还提供了一种终端, 其包括一共享终端耳机 FM 功能的 CMMB天线设备, 参照图 2, 其中, 所述 CMMB天线设备包括耳 机插头部分 110以及一端与所述耳机插头部分 110电性连接的 CMMB天线 主体部分 120, 所述耳机插头部分 110配置为与对应的终端耳机插座插接, 所述 CMMB天线主体部分 120配置为信号的收发。
具体应用中, CMMB天线设备的工作频段为 474~794MHz, 通常自由 空间下, 谐振波长经验上约取值为 130~160mm, 但是在实际设计环境下, 还要将参考介质的变更以及天线自身的阻抗变换考虑在内, 另外, FM工作 频段为 88~108MHz。
优选地, 所述 CMMB 天线设备还包括至少具有一个转接耳机插座的 CMMB天线转接部分 130,其电性连接至 CMMB天线主体部分 120的另一 端,配置为与用户耳机插接。在实际实施时,所述 CMMB天线转接部分 130 的耳机插座可以为多个, 以适应用户不同标准的耳机的使用, 从而在满足 CMMB天线功能的同时, 可根据用户要求, 对用户所选择的耳机适配对应 耳机插座, 从而满足用户对音质品质追求。
优选地, 所述 CMMB天线主体部分 120的外置天线为音频导线、 左声 道导线以及右声道导线的金属外包屏蔽线。 具体实施时, CMMB天线主体 部分 120通过音频的 MIC、 左右声道的导线的外包屏蔽线加以实现, 一方 面屏蔽线保证音频导线不受外界信号干扰, 另一方面, 屏蔽线因为是金属 材质, 在满足一定线长的基础上, 可以等效为外置天线使用。
同样地, 除此之外, 所述 CMMB天线主体部分 120的外置天线还可以 为除上述音频导线、 左声道导线以及右声道导线的金属外包屏蔽线的实施 例,例如采用专门的金属部分作为所述 CMMB天线主体部分 120的外置天 线, 本文对此不做过多赘述。
优选地, 所述 CMMB天线转接部分 130包括转接耳机插座, 以及电性 连接至该转接耳机插座的且相互并联的 GND通路、 音频通路、 左声道通路 以及右声道通路, 更为优选地, 所述 GND通路包括呈并联设置的带通滤波 器以及磁珠。
继续参照图 3, 其为本发明实施例提供的 CMMB天线转接部分 130电 路示意图。 音频 (MIC )、 左右声道 3个串联支路上各预留一器件位, 用于 后期音频调试, 通常使用电感, 不排除磁珠使用, 例如, 在所述音频通路 上设置磁珠 Ll, 在所述左声道通路上设置磁珠 L2, 在所述右声道通路上设 置磁珠 L3。 GND通路上采用并联支路, 支路 a采用 LC串联电路(包括串 联的磁珠 L以及电容 C ), 构成带通滤波器, 调谐频点在 100MHz附近; 支 路 b支路上串联磁珠 L4, 磁珠在 100MHz附近呈高阻工作状态。 当用户耳 机具备 FM功能, 则当接收 FM信号时, 支路 a的 LC串联电路对其表现为 高通, 则 FM信号通过, 通过 CMMB耳机天线传输至终端耳机插座, 由终 端进行 FM信号解析; 当用户体验 CMMB功能时, 虽然支路 a的 LC电路 对 474~794MHz呈高阻特性,但是支路 b的磁珠对 CMMB信号显示为通路, CMMB信号可以正常接收。
以上所述仅为本发明的优选实施例, 并非因此限制本发明的专利范围, 凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换, 或直 接或间接运用在其他相关的技术领域, 均同理包括在本发明的专利保护范 围内。 工业实用性
本发明提供了一种共享终端耳机 FM功能的 CMMB天线设备及终端, 其中, 所述共享终端耳机 FM功能的 CMMB天线设备, 包括耳机插头部分 以及一端与所述耳机插头部分电性连接的 CMMB天线主体部分,所述耳机 插头部分配置为与对应的终端耳机插座插接, 所述 CMMB天线主体部分配 置为信号的收发。 本发明能够在保证音质品质的前提下, 实现 CMMB天线 方案。

Claims

权利要求书
1、一种共享终端耳机调频广播 FM功能的中国移动多媒体广播 CMMB 天线设备, 包括耳机插头部分以及一端与所述耳机插头部分电性连接的 CMMB天线主体部分, 所述耳机插头部分配置为与对应的终端耳机插座插 接, 所述 CMMB天线主体部分配置为信号的收发。
2、 如权利要求 1所述的共享终端耳机 FM功能的 CMMB天线设备, 其中, 还包括至少具有一个转接耳机插座的 CMMB天线转接部分, 其电性 连接至 CMMB天线主体部分的另一端, 配置为与用户耳机插接。
3、 如权利要求 1所述的共享终端耳机 FM功能的 CMMB天线设备, 其中, 所述 CMMB天线主体部分的外置天线为音频导线、 左声道导线以及 右声道导线的金属外包屏蔽线。
4、 如权利要求 2所述的共享终端耳机 FM功能的 CMMB天线设备, 其中, 所述 CMMB天线转接部分还包括电性连接至该转接耳机插座的且相 互并联的 GND通路、 音频通路、 左声道通路以及右声道通路。
5、 如权利要求 4所述的共享终端耳机 FM功能的 CMMB天线设备, 其中, 所述 GND通路包括呈并联设置的带通滤波器以及磁珠。
6、 一种终端, 其包括一共享终端耳机调频广播 FM功能的中国移动多 媒体广播 CMMB天线设备, 其中, 所述 CMMB天线设备包括耳机插头部 分以及一端与所述耳机插头部分电性连接的 CMMB天线主体部分,所述耳 机插头部分配置为与对应的终端耳机插座插接,所述 CMMB天线主体部分 配置为信号的收发。
7、 如权利要求 6所述的终端, 其中, 所述 CMMB天线设备还包括至 少具有一个转接耳机插座的 CMMB天线转接部分, 其电性连接至 CMMB 天线主体部分的另一端, 配置为与用户耳机插接。
8、 如权利要求 6所述的终端, 其中, 所述 CMMB天线主体部分的外 置天线为音频导线、 左声道导线以及右声道导线的金属外包屏蔽线。
9、 如权利要求 7所述的终端, 其中, 所述 CMMB天线转接部分还包 括电性连接至该转接耳机插座的且相互并联的 GND通路、 音频通路、 左声 道通路以及右声道通路。
10、 如权利要求 9所述的终端, 其中, 所述 GND通路包括呈并联设置 的带通滤波器以及磁珠。
PCT/CN2013/081024 2012-08-09 2013-08-07 共享终端耳机fm功能的cmmb天线设备及终端 WO2014023238A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105680156A (zh) * 2014-11-21 2016-06-15 联想(北京)有限公司 一种近距离通信天线、电子设备及电路切换方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202759014U (zh) * 2012-08-09 2013-02-27 中兴通讯股份有限公司 共享终端耳机fm功能的cmmb天线设备及终端
CN103390793A (zh) * 2013-07-29 2013-11-13 苏州维特比信息技术有限公司 一种使用金属框天线的移动终端
CN104425884A (zh) * 2013-08-27 2015-03-18 中兴通讯股份有限公司 一种移动终端及其天线制作方法
CN108289266B (zh) * 2018-01-11 2021-04-27 上海展扬通信技术有限公司 降噪电路及移动终端
WO2019228368A1 (zh) * 2018-05-29 2019-12-05 Oppo广东移动通信有限公司 电子装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102394367A (zh) * 2011-07-15 2012-03-28 上海安费诺永亿通讯电子有限公司 用于中国移动多媒体广播的耳机天线
CN102427192A (zh) * 2011-08-05 2012-04-25 中兴通讯股份有限公司 连接装置、耳机天线及耳机
CN102610914A (zh) * 2012-03-30 2012-07-25 上海华勤通讯技术有限公司 Cmmb天线
WO2012097652A2 (zh) * 2011-12-09 2012-07-26 华为终端有限公司 一种cmmb天线和cmmb耳机天线及移动终端
CN202759014U (zh) * 2012-08-09 2013-02-27 中兴通讯股份有限公司 共享终端耳机fm功能的cmmb天线设备及终端

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102394367A (zh) * 2011-07-15 2012-03-28 上海安费诺永亿通讯电子有限公司 用于中国移动多媒体广播的耳机天线
CN102427192A (zh) * 2011-08-05 2012-04-25 中兴通讯股份有限公司 连接装置、耳机天线及耳机
WO2012097652A2 (zh) * 2011-12-09 2012-07-26 华为终端有限公司 一种cmmb天线和cmmb耳机天线及移动终端
CN102610914A (zh) * 2012-03-30 2012-07-25 上海华勤通讯技术有限公司 Cmmb天线
CN202759014U (zh) * 2012-08-09 2013-02-27 中兴通讯股份有限公司 共享终端耳机fm功能的cmmb天线设备及终端

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105680156A (zh) * 2014-11-21 2016-06-15 联想(北京)有限公司 一种近距离通信天线、电子设备及电路切换方法
CN105680156B (zh) * 2014-11-21 2019-04-26 联想(北京)有限公司 一种近距离通信天线、电子设备及电路切换方法

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