WO2018076381A1 - 一种连接信号接口的线缆 - Google Patents

一种连接信号接口的线缆 Download PDF

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Publication number
WO2018076381A1
WO2018076381A1 PCT/CN2016/104143 CN2016104143W WO2018076381A1 WO 2018076381 A1 WO2018076381 A1 WO 2018076381A1 CN 2016104143 W CN2016104143 W CN 2016104143W WO 2018076381 A1 WO2018076381 A1 WO 2018076381A1
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Prior art keywords
signal interface
cable
interface
terminal
loss compensation
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PCT/CN2016/104143
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English (en)
French (fr)
Inventor
许仲杰
朱惊国
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2016/104143 priority Critical patent/WO2018076381A1/zh
Priority to CN201680080948.XA priority patent/CN108701514A/zh
Publication of WO2018076381A1 publication Critical patent/WO2018076381A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors

Definitions

  • the present invention relates to the field of electronics, and in particular to a cable for connecting a signal interface.
  • USB-IF Universal Serial Bus Implementers Forum
  • the terminal device specifies the transmission link loss between the chip and the USB port that generate the data signal from the inside of the terminal.
  • a Type-C port device at a rate of 5 Gigabits per second (GigaBit Per Second, Gbps), transmits a data signal from a chip that generates data signals inside the device to a Type-C port transmission chain.
  • the path loss needs to be less than 6.5dB.
  • the three-stage terminal design method including the main board, the flexible circuit board, the antenna and the signal interface as shown in FIG. 1 simulates that the transmission link loss between the chip and the USB port which generates the data signal inside the terminal is about 10 dB. It is difficult to control the loss of the terminal within 6.5dB.
  • a feasible method is to add a signal conditioning chip (Re-driver chip) to compensate the link loss at the end of the terminal link, that is, near the signal interface in FIG.
  • Re-driver chip a signal conditioning chip
  • the increased Re-driver chip at the end of the link will cause severe EMI to the antenna and affect terminal performance.
  • the present application provides a cable for connecting a signal interface, which does not affect terminal performance. In the case of the control terminal loss.
  • the present application provides a cable for connecting a signal interface, the cable comprising a first signal interface, a second high speed signal interface, and a transmission line for transmitting data from the first high speed signal interface to the second high speed signal interface.
  • the cable further includes: a loss compensation module disposed on the second signal interface side and connected in series on the transmission line, wherein the loss compensation module is configured to compensate the terminal connected to the first signal interface to the second connection via the cable The transmission link loss of the device to which the signal interface is connected.
  • a loss compensation module is disposed in the connection cable, and when the cable is connected to the terminal, the loss of the terminal is compensated, and the loss of the terminal is effectively controlled. Moreover, since the loss compensation module in the cable is far from the first signal interface of the terminal including the antenna, electromagnetic interference of the loss compensation module and the antenna in the terminal is avoided, and the performance of the terminal is not affected.
  • the signal interface is an interface between the cable and the terminal, and can be divided into a high-speed signal interface and a low-speed signal interface according to the rate of the signal transmitted by the cable.
  • the type of the first signal interface and the second signal interface are not specifically limited in this application.
  • the first signal interface is used to connect a terminal including an antenna.
  • the data signal generated in the terminal the data signal is compensated by the loss compensation module during transmission through the first signal interface to the second signal interface.
  • the first signal interface may include a Typc-C interface, so as to achieve the effect of the foregoing first aspect in a scenario in which the Typc-C interface is applied, where the first aspect is not performed. Narration.
  • the cable may further include: being disposed at the second signal interface An indication of the side indication that the second signal interface is connected to a device that does not include an antenna.
  • the loss compensation module included in the cable is ensured to be located on the second signal interface side of the device that does not include the antenna, so as to prevent the user from inserting and adversely affecting the terminal including the antenna. can. It is better to control the loss of the terminal without affecting the performance of the terminal.
  • the second signal interface is an interface that is close to the electronic tag chip.
  • the loss compensation module may include a Re-driver chip.
  • the specific type of the loss compensation module is not specifically limited in this application.
  • the loss compensation module includes a loss compensation chip and an auxiliary circuit of the chip.
  • the auxiliary circuit is used to drive the loss compensation chip, and the compensation value of the loss compensation chip is configured to implement the function of the loss compensation module.
  • Figure 1 is a schematic diagram of a three-stage terminal design
  • 1A is a schematic structural diagram of a circuit scheme for deploying a loss compensation module in a three-segment terminal design in the prior art
  • FIG. 1B is a schematic structural diagram of a scheme according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of an application scenario according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a cable connected to a signal interface according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of another cable connected to a signal interface according to an embodiment of the present invention.
  • the loss compensation module In order to compensate for the transmission link loss in the terminal, if the loss compensation module is deployed inside the terminal including the antenna, the loss compensation module needs to be deployed at the end of the entire link.
  • FIG. 1A is a schematic diagram of a circuit scheme of a loss compensation module deployed at the end of a terminal link in a three-stage terminal design scheme in the prior art.
  • the signal chip in the internal circuit structure of the terminal, after the signal chip generates the data signal, the data signal sequentially passes through the multi-stage high-speed connector, and then the loss is compensated by the loss compensation module, and then reaches the USB after the data selection switch and the electromagnetic processing unit. interface.
  • the antenna of the terminal is generally deployed at the end of the link. Therefore, the loss compensation module deployed may cause large EMI to the antenna inside the terminal, which seriously affects the service performance of the terminal.
  • the signal chip can be a processor within the terminal.
  • the loss compensation module for compensating the link loss of the terminal is deployed at one end of the cable connected to the terminal away from the terminal. In this way, it is ensured that the loss of the terminal link is compensated by the loss compensation module, and the loss compensation module is kept away from the terminal, thereby avoiding EMI to the terminal and not affecting the performance of the terminal.
  • FIG. 1B is a scenario in which a mobile phone and a computer are connected by a cable according to an embodiment of the present invention.
  • a Re-driver chip is added to the cable to compensate for the transmission link loss in the process of transmitting the data signal to the computer through the cable, and the Re-driver chip is disposed on the cable away from the end of the mobile phone. It ensures that the loss compensation module compensates the transmission link loss of the data signal in the mobile phone link, and ensures that the Re-driver chip is far away from the mobile phone and avoids EMI on the mobile phone.
  • the scenario applied by the solution of the present application is first described. Bright.
  • the cable provided in the embodiment of the present application is applied to the connection scenario shown in FIG. 2.
  • the scenario includes a cable 201, a terminal 202 connected by a cable 201, and a device 203.
  • the terminal 202 includes an antenna.
  • the device 203 may or may not include an antenna.
  • the embodiment of the present invention does not specifically limit this.
  • the device 203 is any device that is connected to the terminal through a cable.
  • the type of the device 203 is not specifically limited in this application.
  • the terminal 202 can be a user equipment (English name: User Equipment, UE), a mobile phone, a tablet computer, a notebook computer, a super mobile personal computer (English name: Ultra-mobile Personal Computer, UMPC), a netbook, an individual.
  • Digital Assistant English full name: Personal Digital Assistant, PDA
  • e-books mobile TV, wearable devices, personal computers (English full name: Personal Computer, PC) and so on.
  • the type of the terminal 202 is not specifically limited in the embodiment of the present invention.
  • the device 203 can be a UE, a mobile phone, a tablet, a laptop, a UMPC, a netbook, a PDA, an e-book, a mobile TV, a wearable device, a PC, and the like.
  • the embodiment of the present invention does not specifically limit the type of the device 203.
  • connection scenario of the terminal 202 and the device 203 is illustrated by way of example only, and is not specifically limited to the types of the terminal 202 and the device 203.
  • FIG. 3 is a schematic structural diagram of a cable 301 for connecting a signal interface related to various embodiments of the present invention.
  • the cable 301 of the connection signal interface may be the cable 201 included in FIG. 2 .
  • the signal interface may include a Type-C interface, a Micro-USB interface, and the like.
  • the signal interface can also be an interface type that supports other rates.
  • the embodiment of the present invention does not specifically limit the type of the signal interface.
  • the cable 301 of the connection signal interface may include:
  • the first signal interface 3011, the second signal interface 3012, and the transmission line 3013 for transmitting data from the first signal interface to the second signal interface are disposed at the second signal interface 3012.
  • the loss compensation module 3014 is laterally and serially coupled to the transmit line 3013.
  • the loss compensation module 3014 is configured to compensate for the transmission link loss when the terminal connected by the first signal interface sends a data signal to the device connected to the second signal interface.
  • the first signal interface 3011 is an interface that connects the terminal including the antenna.
  • the transmission line 3013 is a transmission (English full name: Transmit, TX) line in the cable.
  • the loss compensation module 3014 may be deployed in the second signal interface 3012 or may be disposed outside the second signal interface 3012, which is not specifically limited in this embodiment of the present invention.
  • the distance between the loss compensation module 3014 and the second signal interface 3012 may be configured according to actual requirements, which is not specifically limited in the embodiment of the present invention.
  • the compensation value of the loss compensation module 3014 may be a preset value configured according to actual requirements of the link.
  • the preset value may be determined according to an actual requirement, which is not specifically limited in this embodiment of the present invention.
  • the loss compensation module 3014 may only include the loss compensation chip. At this time, the loss compensation module 3014 compensates the data signal of the input loss compensation module 3014 with a fixed compensation value. This fixed compensation value depends on the performance parameters of the loss compensation chip.
  • the loss compensation module 3014 may include a loss compensation chip and an auxiliary circuit.
  • the auxiliary circuit is configured to configure the driving loss compensation chip such that the loss compensation chip compensates the transmitted data signal for different values.
  • the loss compensation module 3014 includes the loss compensation chip and the auxiliary circuit
  • the compensation value of the loss compensation chip can be satisfied by adjusting the structure of the auxiliary circuit and/or the value of the device.
  • the specific content of the auxiliary circuit may be provided by the manufacturer of the loss compensation chip, or may be adapted according to the auxiliary circuit provided by the manufacturer of the loss compensation chip.
  • the specific content and design manner of the auxiliary circuit are not specifically limited in the embodiment of the present invention. It is within the protection scope of the present invention to adjust the compensation value of the loss compensation chip through the auxiliary circuit.
  • the loss compensation chip included in the loss compensation module 3014 may be a Re-driver chip.
  • the Re-driver chip is a signal conditioner, which is a general term for the loss compensation chip. All chips used to compensate for losses are called Re-driver chips.
  • the specific types of the Re-driver chip are not limited in the embodiment of the present invention.
  • a loss compensation module is disposed in the cable connecting the signal interface, and when the cable is connected to the terminal, the transmission transmission link loss of the terminal is compensated, and the loss of the terminal is effectively controlled. Moreover, since the loss compensation module in the cable is far from the first signal interface of the terminal including the antenna, electromagnetic interference of the loss compensation module and the antenna in the terminal is avoided, and the performance of the terminal is not affected.
  • the cable 301 connecting the signal interface may further include: a receiving line, other configuration lines, and the like.
  • the types of other lines included in the cable 301 connected to the signal interface are not specifically limited in the embodiment of the present invention.
  • the cable 301 connecting the signal interface may further include: an indication identifier 3015 disposed on the side of the second signal interface 3012, the indication The identification indicates that the second signal interface 3012 is connected to a device that does not include an antenna.
  • the indication identifier 3015 may be disposed on the second signal interface 3012, or may be disposed on the outer skin of the cable 301 of the connection signal interface near the second signal interface 3012. This embodiment of the present invention does not specifically limit this.
  • FIG. 4 is merely illustrative and is not a limitation of the location of the indicator 3015 and the second signal interface 3012.
  • the first signal interface 3011 is a Type-C interface for connecting to a mobile phone
  • the second signal interface 3012 is a Type-C interface for connecting a desktop computer having a Type-C interface, and then the second signal interface.
  • the 3012 side setting indication flag 3015 indicates that the second signal interface 3012 is used to connect to the desktop.
  • the second signal interface 3012 is an electronic tag included in the cable 301 of the connection signal interface. Chip near interface.
  • the three commonly used cables for connecting signal interfaces are described below.
  • One end of these three cables is a Type-C interface.
  • the cable (a) connected to the signal interface has a Type-C interface for connecting to the mobile phone at one end and a Type-A female port for connecting to a storage device such as a USB flash drive or a removable hard disk.
  • a storage device such as a USB flash drive or a removable hard disk.
  • the cable (b) connected to the signal interface has a Type-C interface for connecting to the mobile phone at one end and a Type-C interface at the other end for connecting a desktop or a notebook having a Type-C interface.
  • the cable if the cable supports USB 3.1, the cable must be an electronically marked cable (English name: Electrically Marked Cables), that is, the cable itself must have an electronic tag chip.
  • the loss compensation module is placed near the electronic tag chip and marked on the cable, and it is recommended to include one end of the chip to connect to the desktop or the notebook, no chip. Connect the phone to the end.
  • the cable (c) connected to the signal interface has a Type-C interface for connecting to the mobile phone at one end and a Type-A male port for a desktop or notebook connected to the USB interface at the other end.
  • one end of the non-Type-C interface is configured with a loss compensation module.

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Abstract

一种连接信号接口的线缆（201、301），涉及电子领域，实现在不影响终端（202）性能的情况下，控制终端（202）的损耗。连接信号接口的线缆（201、301）包括第一信号接口（3011）、第二信号接口（3012）及从第一信号接口（3011）向第二信号接口（3012）发送数据的发送线（3013）、设置在第二信号接口（3012）侧且串联于发送线（3013）上的损耗补偿模块（3014）。所述线缆（201、301）用于传输数据。

Description

一种连接信号接口的线缆 技术领域
本发明涉及电子领域，尤其涉及一种连接信号接口的线缆。
背景技术
随着电子技术的发展，终端所使用的串行总线的接口类型也在不断的更新换代，以支持更高速的数据传输。目前，越来越多的终端支持采用最新的Type-C接口，取代用了多年的微型通用串行总线(英文全称：Micro Universal Serial Bus，Micro-USB)接口。
通过信号频率的提升支持高速的数据传输，带来了信号衰减和电磁干扰(英文全称：Electromagnetic Interference，EMI)的问题。基于此，为了保证USB设备的兼容性和一致性，通用串行总线实现者论坛(英文全称：Universal Serial Bus Implementers Forum，USB-IF)制定规范，针对不同的数据传输速率，对使用USB端口的终端设备，从终端内部产生数据信号的芯片至USB端口之间的传输链路损耗分别制定规范。例如，Type-C端口设备，速率在5千兆比特每秒(英文全称：GigaBit Per Second，Gbps)时，要使数据信号从该设备内部产生数据信号的芯片传输至Type-C端口的传输链路损耗需要小于6.5dB。但是，当前如图1所示的包括主板、柔性电路板、天线及信号接口的三段式终端设计方式，仿真得到终端内部产生数据信号的芯片至USB端口间的传输链路损耗大约在10dB左右，很难将终端的损耗控制在6.5dB以内。
为了保证产品设计满足USB-IF的规范要求，可行的方法是在终端链路的末端，即图1中的信号接口附近增加一颗信号调节芯片(Re-driver芯片)补偿链路损耗。但是，终端的链路末端增加的Re-driver芯片会对天线造成严重的EMI，影响终端性能。
发明内容
本申请提供一种连接信号接口的线缆，实现在不影响终端性能 的情况下，控制终端的损耗。
为达到上述目的，本申请采用如下技术方案：
第一方面，本申请提供一种连接信号接口的线缆，该线缆包括第一信号接口、第二高速信号接口及从第一高速信号接口向第二高速信号接口发送数据的发送线。该线缆还包括：设置在第二信号接口侧，串联于发送线上的损耗补偿模块，损耗补偿模块用于补偿所述第一信号接口连接的终端经由所述线缆到所述第二接信号接口连接的设备的传输链路损耗。
这样一来，在连接线缆中设置损耗补偿模块，用于当该线缆与终端连接时，对终端的损耗进行了补偿，有效的控制了终端的损耗。并且，由于线缆中的损耗补偿模块距离连接包括天线的终端的第一信号接口远，避免了损耗补偿模块与终端内的天线的电磁干扰，不会影响终端的性能。
其中，信号接口为线缆与终端连接的接口，根据其传输的信号的速率，可以分为高速信号接口与低速信号接口。本申请对于第一信号接口、第二信号接口的类型不进行具体限定。
进一步的，第一信号接口用于连接包括天线的终端。当第一信号接口连接终端时，终端中产生的数据信号，该数据信号在经由第一信号接口，到第二接信号接口的传输过程中，由损耗补偿模块补偿其损耗。
结合第一方面，在一种可能的实现方式中，第一信号接口可以包括Typc-C接口，以实现在应用Typc-C接口的场景下，达到上述第一方面的效果，此处不再进行赘述。
结合第一方面或上述任一种可能的实现方式，在另一种可能的实现方式中，若第一信号接口与第二信号接口类型相同，该线缆还可以包括：设置在第二信号接口侧的指示标识，该指示标识指示第二信号接口连接不包含天线的设备。这样一来，当线缆的两端接口类型相同时，保证线缆中包括的损耗补偿模块位于连接不包含天线的设备的第二信号接口侧，防止用户插反影响包括天线的终端的性 能。更好的实现了在不影响终端性能的情况下，控制终端的损耗。
结合第一方面或上述任一种可能的实现方式，在另一种可能的实现方式中，若第一信号接口与第二信号接口类型相同，且所述线缆中包括电子标记芯片，第二信号接口为距离电子标记芯片近的接口。
结合第一方面或上述任一种可能的实现方式，在另一种可能的实现方式中，损耗补偿模块可以包括Re-driver芯片。对于损耗补偿模块的具体类型，本申请不进行具体限定。
结合第一方面或上述任一种可能的实现方式，在另一种可能的实现方式中，该损耗补偿模块包括损耗补偿芯片及该芯片的辅助电路。该辅助电路用于驱动损耗补偿芯片，配置损耗补偿芯片的补偿值，以实现损耗补偿模块的功能。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为三段式终端设计示意图；
图1A为现有技术一种三段式终端设计中部署损耗补偿模块的电路方案架构示意图；
图1B为本发明实施例的一种方案原理架构示意图；
图2为本发明实施例的应用场景示意图；
图3为本发明实施例提供的一种连接信号接口的线缆的结构示意图；
图4为本发明实施例提供的另一种连接信号接口的线缆的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术 方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
另外，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
为了补偿终端内传输链路损耗，若在包含天线的终端内部部署损耗补偿模块，损耗补偿模块需要部署在整个链路的末端。
示例性的，图1A示意了一种现有技术中三段式终端设计方案中，在终端链路的末端部署损耗补偿模块的电路方案架构示意图。如图1A所示，终端内部的电路架构中，信号芯片生成数据信号后，数据信号依次经过多级高速连接器、再由损耗补偿模块补偿损耗后，经数据选择开关及电磁处理单元后到达USB接口。结合图1，根据当前的三段式终端设计方案，链路的末端一般部署有终端的天线，因此，部署的损耗补偿模块会对终端内部的天线造成较大的EMI，严重影响终端的业务性能。信号芯片可以为终端内的处理器。
基于此，本发明的实施例中：将用于补偿终端链路损耗的损耗补偿模块，部署在与终端连接的线缆中远离终端的一端。这样一来，既保证了通过损耗补偿模块补偿终端链路的损耗，又保证了损耗补偿模块远离终端，避免对终端造成EMI，不会影响终端的性能。
示例性的，图1B为本发明实施例中在通过线缆连接手机与电脑的场景。如图1B所示，在线缆上增加Re-driver芯片用于补偿手机通过线缆传输数据信号给电脑过程中的传输链路损耗，且Re-driver芯片设置在线缆上远离手机一端，既保证了通过损耗补偿模块补偿数据信号在手机链路中的传输链路损耗，又保证了Re-driver芯片远离手机，避免对手机造成EMI。
在描述本发明实施例之前，先对本申请方案应用的场景进行说 明。本申请实施例提供的线缆，应用于图2所示的连接场景中。如图2所示，该场景中包括线缆201、由线缆201连接的终端202及设备203。
其中，终端202包括天线；设备203可以包括天线，也可以不包括天线，本发明实施例对于此不进行具体限定。设备203是与终端通过线缆连接的任一设备，本申请对于设备203的类型不进行具体限定。
需要说明的是，该终端202可以为用户设备(英文全称：User Equipment，UE)、手机、平板电脑、笔记本电脑、超级移动个人计算机(英文全称：Ultra-mobile Personal Computer，UMPC)、上网本、个人数字助理(英文全称：Personal Digital Assistant，PDA)、电子书、移动电视、穿戴设备、个人电脑(英文全称：Personal Computer，PC)等等。本发明实施例对于终端202的类型也不进行具体限定。该设备203可以为UE、手机、平板电脑、笔记本电脑、UMPC、上网本、PDA、电子书、移动电视、穿戴设备、PC等等。本发明实施例对于设备203的类型也不进行具体限定。
还需要说明的是，在图2中，只是以示例的形式示意了终端202及设备203的连接场景，并不是对终端202及设备203的类型的具体限定。
下面结合附图，对本发明的实施例进行具体阐述。
图3示出的是与本发明各实施例相关的一种连接信号接口的线缆301的结构示意图，该连接信号接口的线缆301可以为图2中包括的线缆201。
需要说明的是，信号接口可以包括Type-C接口、Micro-USB接口等。当然，信号接口也可以为支持其他速率的接口类型。本发明实施例对于信号接口的类型不进行具体限定。
如图3所示，该连接信号接口的线缆301可以包括：
第一信号接口3011、第二信号接口3012及从第一信号接口向第二信号接口发送数据的发送线3013，设置在第二信号接口3012 侧且串联于发送线3013上的损耗补偿模块3014。损耗补偿模块3014用于补偿第一信号接口连接的终端向第二信号接口连接的设备发送数据信号时的传输链路损耗。
其中，第一信号接口3011为连接包括天线的终端的接口。发送线3013为线缆中的传送(英文全称：Transmit，TX)线。
可选的，损耗补偿模块3014可以部署在第二信号接口3012内，也可以部署在第二信号接口3012外，本发明实施例对此不进行具体限定。当损耗补偿模块3014部署在第二信号接口3012外时，损耗补偿模块3014与第二信号接口3012之间的距离，可以根据实际需求配置，本发明实施例对此不进行具体限定。
可选的，损耗补偿模块3014的补偿值，可以为根据链路的实际需求配置的预设值。该预设值可以根据实际需求确定，本发明实施例对此不进行具体限定。
可选的，损耗补偿模块3014可以仅包括损耗补偿芯片，此时，损耗补偿模块3014对输入损耗补偿模块3014的数据信号的补偿固定的补偿值。该固定的补偿值取决于损耗补偿芯片的性能参数。
可选的，损耗补偿模块3014可以包括损耗补偿芯片及辅助电路。该辅助电路用于配置驱动损耗补偿芯片，使得损耗补偿芯片对传输的数据信号补偿不同的值。
进一步的，当损耗补偿模块3014包括损耗补偿芯片及辅助电路时，可以通过调整辅助电路的架构和/或器件取值，使得损耗补偿芯片的补偿值满足需求。
需要说明的是，辅助电路的具体内容，可以由损耗补偿芯片的厂家提供，或者，也可以根据损耗补偿芯片的厂家提供的辅助电路适应修改。本发明实施例对于辅助电路的具体内容以及设计方式不进行具体限定。凡是通过辅助电路调节损耗补偿芯片的补偿值，都属于本发明的保护范围。
进一步的，损耗补偿模块3014中包括的损耗补偿芯片可以为Re-driver芯片。
其中，Re-driver芯片即为信号调节器，是对损耗补偿芯片的统称。凡是用于补偿损耗的芯片，均称之为Re-driver芯片。本发明实施例对于Re-driver芯片的具体类型不进行限定。
这样一来，在连接信号接口的线缆中设置损耗补偿模块，用于当该线缆与终端连接时，对终端的发送传输链路损耗进行了补偿，有效的控制了终端的损耗。并且，由于线缆中的损耗补偿模块距离连接包括天线的终端的第一信号接口远，避免了损耗补偿模块与终端内的天线的电磁干扰，不会影响终端的性能。
当然，连接信号接口的线缆301还可以包括：接收线、其他的配置线等。本发明实施例对于连接信号接口的线缆301包括的其他线的类型不进行具体限定。
进一步的，若第一信号接口3011与第二信号接口3012类型相同，如图4所示，连接信号接口的线缆301还可以包括：设置在第二信号接口3012侧的指示标识3015，该指示标识指示第二信号接口3012连接不包含天线的设备。
需要说明的是，指示标识3015可以设置在第二信号接口3012上，也可以设置在第二信号接口3012附近的连接信号接口的线缆301的外皮上。本发明实施例对此不进行具体限定。图4仅是示意说明，并不是对指示标识3015与第二信号接口3012的位置的限定。
示例性的，假设第一信号接口3011为Type-C接口，用于连接手机，第二信号接口3012为Type-C接口，用于连接具有Type-C接口的台式机，则在第二信号接口3012侧设置指示标识3015，指示第二信号接口3012用于连接台式机。
进一步的，若第一信号接口3011与第二信号接口3012类型相同，且连接信号接口的线缆301包括电子标记芯片，第二信号接口3012为距离连接信号接口的线缆301中包括的电子标记芯片近的接口。
示例性的，下面描述常用的三种连接信号接口的线缆。这三种电缆的一端都为Type-C接口。下面描述这三种线缆中实现本发明实 施例方案的内容。
连接信号接口的线缆(a)，一端为Type-C接口用于连接手机，另一端为连接U盘或者移动硬盘等存储设备的A型(Type-A)母口。通过本发明实施例的方案，连接信号接口的线缆(a)中，非Type-C接口的一端部署损耗补偿模块。
连接信号接口的线缆(b)，一端为用于连接手机的Type-C接口，另一端也为Type-C接口，用于连接具有Type-C接口的台式机或者笔记本。根据Type-C接口规范，如果线缆支持USB3.1，线缆必须是电子标记电缆(英文全称：Electronically Marked Cables)，即线缆本身必须带有电子标记芯片。通过本发明实施例的方案，连接信号接口的线缆(b)中，把损耗补偿模块放在电子标记芯片附近，并在线缆上标示，建议包含芯片的一端连接台式机或者笔记本，无芯片端连接手机。
连接信号接口的线缆(c)，一端为Type-C接口用于连接手机，另一端为连接USB接口的台式机或者笔记本的Type-A公口。通过本发明实施例的方案，连接信号接口的线缆(c)中，非Type-C接口的一端部署损耗补偿模块。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本发明所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (5)

  1. 一种连接信号接口的线缆，所述线缆包括第一信号接口、第二信号接口及从所述第一信号接口向所述第二信号接口发送数据的发送线，其特征在于，所述线缆还包括：
    设置在所述第二信号接口侧，串联于所述发送线上的损耗补偿模块，所述损耗补偿模块用于补偿所述第一信号接口连接的终端经由所述线缆到所述第二接信号接口连接的设备的传输链路损耗。
  2. 根据权利要求1所述的线缆，其特征在于，所述第一信号接口为通用串行总线USB Typc-C接口。
  3. 根据权利要求1或2所述的线缆，其特征在于，若所述第一信号接口与所述第二信号接口类型相同，所述线缆还包括：
    设置在所述第二信号接口侧的指示标识，所述指示标识指示所述第二信号接口连接不包含天线的设备。
  4. 根据权利要求1-3任一项所述的线缆，其特征在于，若所述第一信号接口与所述第二信号接口类型相同，所述第二信号接口为距离所述线缆中包括的电子标记芯片近的接口。
  5. 根据权利要求1-4任一项所述的线缆，所述损耗补偿模块包括Re-driver芯片。
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