WO2017128622A1 - 数字电视及其信号处理装置 - Google Patents

数字电视及其信号处理装置 Download PDF

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WO2017128622A1
WO2017128622A1 PCT/CN2016/088484 CN2016088484W WO2017128622A1 WO 2017128622 A1 WO2017128622 A1 WO 2017128622A1 CN 2016088484 W CN2016088484 W CN 2016088484W WO 2017128622 A1 WO2017128622 A1 WO 2017128622A1
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digital
main control
pcba board
signal
standard module
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PCT/CN2016/088484
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English (en)
French (fr)
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张文
刘松
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乐视控股（北京）有限公司
乐视致新电子科技（天津）有限公司
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Priority to US15/250,564 priority Critical patent/US20170223404A1/en
Publication of WO2017128622A1 publication Critical patent/WO2017128622A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards

Definitions

  • the embodiments of the present invention relate to the field of digital television technologies, and in particular, to a digital television and a signal processing apparatus thereof.
  • the TV systems of different countries are different.
  • the distinction between the standards is mainly due to the difference of frame rate (field frequency), the difference of decomposition rate, the difference of signal bandwidth and carrier frequency, and the conversion relationship of color space.
  • the television system is a method for realizing the transmission of television image signals and accompanying sound signals, or other signals, and the display format of television images, and the technical standards adopted by such methods and television image display formats. Only by following the same technical standards can the TV normally receive TV signals and play TV programs.
  • Black and white TVs have black and white TV standards, such as A, B, C, D, E, G, H, I, K, K1, L, M, N, etc., a total of 13 kinds (including A, C, E have not been used)
  • Color TVs have color TV formats such as NTSC, PAL, and SECAM; digital TVs have their own specific standards such as DTMB, DVB-T/T2/C/C2, ATSC, and ISDB.
  • One of the objectives of the embodiments of the present application is to provide a digital television and a signal processing device thereof, which are used to solve the problem that multiple PCBs are required to be assembled in order to adapt to different countries and regions. It is not conducive to technical problems such as material generalization.
  • the embodiment of the present application provides a digital television signal processing apparatus, including a main control PCBA board and a digital demodulator standard module, and the digital demodulator standard module and the main control PCBA board are
  • the digital demodulator standard module is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal
  • the main control PCBA board is at least used for decoding the digital transmission stream signal.
  • the digital demodulator standard module is a DTMB or DVB-T/T2 or DVB-C/C2 or ATSC or ISDB digital demodulator standard module.
  • the main control PCBA board includes a TUNER module, and the TUNER module is used to generate a digital television intermediate frequency signal.
  • the main control PCBA board includes a main SOC chip, and the main SOC chip is configured to perform decoding processing on the digital transport stream signal.
  • the main control PCBA board includes a USB interface for transmitting a digital format digital television signal.
  • the main control PCBA board includes an HDMI interface for transmitting an image signal in an HDMI format.
  • the main control PCBA board includes a V-BY-ONE for transmitting a digital television signal in the V-BY-ONE format.
  • the main control PCBA board includes an RF demodulation module for receiving a radio frequency signal.
  • the main control PCBA board includes a remote control signal receiving module for receiving a remote control signal.
  • the embodiment of the present application further provides a digital television, comprising the digital television signal processing apparatus according to any one of the above.
  • the digital demodulator standard module and the main control PCBA board are detachable by separating the main control PCBA board and the digital demodulator standard module.
  • the digital demodulator standard module is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal
  • the main control PCBA board is at least used for decoding the digital transmission stream signal, to adapt to different
  • FIG. 1 is a schematic structural diagram of a digital television signal processing apparatus according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of a digital television signal processing apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a fourth digital television signal processing apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 5 of the present invention.
  • FIG. 6 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 7 of the present application.
  • FIG. 8 is a schematic structural diagram of an apparatus for processing a digital television signal according to an eighth embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 9 of the present application.
  • FIG. 10 is a schematic structural diagram of a ten-digit television signal processing apparatus according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 11 of the present application.
  • FIG. 12 is a schematic structural diagram of a digital television signal processing apparatus according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 13 of the present application.
  • FIG. 14 is a schematic structural diagram of a device for processing a digital television signal according to a fourteenth embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a digital television signal processing apparatus according to an embodiment of the present application; as shown in FIG. 1, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and the The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for The digital transport stream signal is decoded.
  • the structure related to the digital demodulation in the prior art is separately opened from the main control PCBA board 101, and is connected to the main control PCBA board 101 by means of opening and disassembling, when it is required to be modulated with a specific country region.
  • a master PCBA board 101 is suitable for all digital modems of different standards.
  • FIG. 2 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 2 of the present invention; as shown in FIG. 2, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and the The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for The digital transport stream signal is decoded.
  • the digital demodulator standard module 102 includes a DTMB digital demodulator standard module 112.
  • DTMB Digital Television Terrestrial Multimedia Broadcasting
  • frame structure means “frame structure, channel coding and modulation of digital television terrestrial broadcasting transmission system”.
  • the national standard DTMB transmission system adopts an innovative time domain synchronous orthogonal frequency division multiplexing (TDS-OFDM) single multi-carrier modulation method.
  • TDS-OFDM time domain synchronous orthogonal frequency division multiplexing
  • This modulation method is mainly designed for the linear time-varying broadband transmission channel characteristics (frequency domain selectivity and time domain selective simultaneous transmission channel) of the terrestrial digital multimedia television broadcasting transmission channel.
  • FIG. 3 is a schematic structural diagram of a digital television signal processing apparatus according to an embodiment of the present invention; as shown in FIG. 3, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and the The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for The digital transport stream signal is decoded.
  • the digital demodulator standard module 102 includes a DVB-T/T2 digital demodulator standard module 122.
  • the former is the first generation, the latter is the second generation, and the basic technical routes of the two are common. It is a CP-OFDM technology, a frequency domain pilot technique, and a QAM modulation technique.
  • DVB-T2 Digital Video Broadcasting – Second Generation Terrestrial Broadcasting
  • T2 European digital terrestrial television broadcasting transmission standard
  • the highest TS streaming rate supported in the 8MHz spectrum bandwidth is about 50.1 Mbit/s (for example, including empty packets that may be removed, the highest TS stream transmission rate can reach 100 Mbit/s).
  • FIG. 4 is a schematic structural diagram of a fourth digital television signal processing apparatus according to an embodiment of the present invention; as shown in FIG. 4, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and the The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for The digital transport stream signal is decoded.
  • the digital demodulator standard module 102 includes a DVB-C/C2 digital demodulator standard module 132, the former being the first generation and the latter being the second generation.
  • DVB-C/C2 Digital Video Broadcasting-Cable/Cable2
  • DVB-C/C2 adopts a modulation scheme with narrow bandwidth, high frequency band utilization, and strong anti-interference ability.
  • the channel portion of DVB-C employs RS code and convolutional code interleaving techniques, Quadrature Amplitude Modulation (QAM).
  • the DVB-C hardware may include a modulator, a channel splitter, a cable television network, and the like.
  • FIG. 5 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 5 of the present invention; as shown in FIG. 5, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and the The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for The digital transport stream signal is decoded.
  • the digital demodulator standard module 102 includes an ATSC digital demodulator standard module 142.
  • ATSC is the national standard for digital television in the United States.
  • the full name of ATSC is the Advanced Television Systems Committee.
  • the ATSC system source code uses MPEG-2 video compression and AC-3 audio compression; the channel coding uses VSB modulation and provides two modes: terrestrial broadcast mode (8VSB) and high data rate mode (16VSB).
  • FIG. 6 is a schematic structural diagram of a digital television signal processing apparatus according to an embodiment of the present invention; as shown in FIG. It may include a main control PCBA board 101 and a digital demodulator standard module 102.
  • the digital demodulator standard module 102 is detachably connected to the main control PCBA board 101, and the digital demodulator standard module 102 is used. Demodulating the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is at least used for decoding the digital transmission stream signal.
  • the digital demodulator standard module 102 includes an ISDB digital demodulator standard module 152.
  • ISDB Integrated Services Digital Broadcasting-Terrestrial
  • the transmission scheme is still COFDM.
  • the encoding method is the same and the modulation method is the same. Also divided into 2K and 8K modes. Because the Japanese TV RF bandwidth is 6M H z, the carrier number carrier spacing is different.
  • ISD B is flexible, scalable, and common, enabling flexible integration and delivery of multi-program TV and other data services.
  • FIG. 7 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 7 of the present application; as shown in FIG. 7, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and the The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for The digital transport stream signal is decoded.
  • the main control PCBA board 101 includes a TUNER module 111, and the TUNER module is configured to receive an RF signal, perform filtering, and the like to generate a digital television intermediate frequency signal.
  • the TUNER module consists of TUNER, CPU and backhaul (optional).
  • the digital demodulator standard module 102 can include any of the standard modules or modules described above in Figures 2-6.
  • FIG. 8 is a schematic structural diagram of a digital television signal processing apparatus according to an embodiment of the present application; as shown in FIG. 8, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and the The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for The digital transport stream signal is decoded.
  • the main control PCBA board 101 includes a main SOC chip 121 for performing decoding processing on the digital transport stream signal.
  • the digital demodulator standard module 102 can include any of the standard modules or modules described above in Figures 2-6.
  • FIG. 9 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 9 of the present application; as shown in FIG. 9, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and the The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for The digital transport stream signal is decoded.
  • the main control PCBA board 101 includes a USB interface 131 for transmitting a digital format digital television signal.
  • FIG. 10 is a schematic structural diagram of a ten-digit television signal processing apparatus according to an embodiment of the present application; as shown in FIG. 10, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and the The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for The digital transport stream signal is decoded.
  • the main control PCBA board 101 includes an HDMI interface 141 for transmitting an image signal in an HDMI format digital television signal.
  • HDMI High Definition Multimedia Interface
  • HDMI is a digital video/audio interface technology. It is a dedicated digital interface suitable for image transmission. It can transmit audio and video signals at the same time.
  • the maximum data transmission speed is 4.5GB/ s, at the same time, there is no need to perform digital/analog or analog/digital conversion before signal transmission.
  • FIG. 11 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 11 of the present application; as shown in FIG. 11, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for Decoding the digital transport stream signal.
  • the main control PCBA board 101 includes a V-BY-ONE 151 for transmitting a digital television signal in the V-BY-ONE format.
  • V-by-One is a digital interface standard developed specifically for image transmission.
  • the input and output levels of the signal are LVDS (low voltage differential signal).
  • the signal frequency of the board is approximately 1 GHz.
  • the V-by-One IC supports two forward channels; supports up to 4K x 2K, update frequency 240Hz, and 12 bits per color (for 32 channels on multiple ICs).
  • V-by-One will also support high-quality image analysis of various 3D video signals and comparable cinemas, such as video signal transmission with an aspect ratio of 21:9 and a pixel of 2560 ⁇ 1080.
  • FIG. 12 is a schematic structural diagram of a digital television signal processing apparatus according to an embodiment of the present application; as shown in FIG. 12, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for Decoding the digital transport stream signal.
  • the main control PCBA board 101 includes an RF demodulation module 161 for receiving radio frequency signals.
  • FIG. 13 is a schematic structural diagram of a digital television signal processing apparatus according to Embodiment 13 of the present application; as shown in FIG. 13, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for Decoding the digital transport stream signal.
  • the main control PCBA board 101 includes a remote control signal receiving module 171 for receiving a remote control signal.
  • FIG. 14 is a schematic structural diagram of a digital television signal processing apparatus according to an embodiment of the present application; as shown in FIG. 14, it may include a main control PCBA board 101 and a digital demodulator standard module 102, and the digital demodulator standard module 102 and The main control PCBA board 101 is detachably connected, and the digital demodulator standard module 102 is configured to perform demodulation processing on the digital television intermediate frequency signal to obtain a digital transmission stream signal, and the main control PCBA board 101 is used at least for Decoding the digital transport stream signal.
  • the main control PCBA board 101 includes:
  • the TUNER module 111 is configured to generate a digital television intermediate frequency signal.
  • the main SOC chip 121 is configured to perform decoding processing on the digital transport stream signal.
  • the USB interface 131 is configured to transmit a digital television signal in a USB format.
  • the HDMI interface 141 is configured to transmit a digital television signal in an HDMI format.
  • the V-BY-ONE interface 151 is used to transmit digital television signals in the V-BY-ONE format.
  • the RF demodulation module 161 is configured to receive a radio frequency signal.
  • the remote control signal receiving module 171 is configured to receive a remote control signal.
  • main PCBA board 101 can be flexibly configured according to actual needs, such as only one of the structural units of FIG. 7 to FIG. 13, and any two or more structural units.
  • the embodiment of the present application further provides a digital television comprising the digital television signal processing apparatus described in any of the above embodiments.
  • the description of the drawings is not repeated here.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located A place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

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Abstract

一种数字电视及其信号处理装置，数字电视信号处理装置主控PCBA板以及数字解调器标准模块，所述数字解调器标准模块与所述主控PCBA板以可拆卸方式连接，所述数字解调器标准模块用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板至少用于对数字传输流信号进行解码处理。本申请实施例为适应不同的国家地区，只需要单独更换数字解调器标准模块即可，保留主控PCBA板不变，从而无需更改整个PCBA板，降低了PCBA维护复杂度，有利于物料通用化。

Description

数字电视及其信号处理装置
本申请要求于2016年1月30日提交中国专利局、申请号为201620099050.4，发明名称为“数字电视及其信号处理装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及数字电视技术领域，尤其涉及一种数字电视及其信号处理装置。
背景技术
各国的电视制式不尽相同，制式的区分主要在于其帧频(场频)的不同、分解率的不同、信号带宽以及载频的不同、色彩空间的转换关系不同等等。
电视制式就是用来实现电视图像信号和伴音信号，或其它信号传输的方法，和电视图像的显示格式，以及这种方法和电视图像显示格式所采用的技术标准。只有遵循一样的技术标准，才能够实现电视机正常接收电视信号、播放电视节目。黑白电视有黑白电视的制式，如A、B、C、D、E、G、H、I、K、K1、L、M、N等，共计13种(其中A、C、E已不采用)；彩色电视有彩色电视的制式，如NTSC、PAL、SECAM等三种；数字电视有其特定的制式如DTMB、DVB-T/T2/C/C2、ATSC以及ISDB。
在实现本申请过程中，发明人发现现有技术中至少存在如下问题：为适应不同的国家地区，需要使用不同的数字电视解调器，但是，由于现有技术中，数字电视解调器是直接集成在PCBA板上的，因此针对不同电视制式的市场需要用不同的印刷电路板装配PCBA(Printed Circuit Board+Assembly)，多个PCBA维护比较复杂，不利于物料通用化。
发明内容
本申请实施例的目的之一在于提供一种数字电视及其信号处理装置，用以解决现有技术中为适应不同的国家地区需要不同的印刷电路板装配PCBA，导致的多个PCBA维护比较复杂，不利于物料通用化等技术问题。
本申请实施例采用的技术方案如下：
本申请实施例提供一种数字电视信号处理装置，其包括主控PCBA板以及数字解调器标准模块，所述数字解调器标准模块与所述主控PCBA板以可 拆卸方式连接，所述数字解调器标准模块用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板至少用于对数字传输流信号进行解码处理。
具体地，在实用新型的一实施例中，所述数字解调器标准模块为DTMB或DVB-T/T2或DVB-C/C2或ATSC或ISDB数字解调器标准模块。
具体地，在实用新型的一实施例中，所述主控PCBA板包括TUNER模组，所述TUNER模组用来生成数字电视中频信号。
具体地，在实用新型的一实施例中，所述主控PCBA板包括主SOC芯片，所述主SOC芯片用于对数字传输流信号进行解码处理。
具体地，在实用新型的一实施例中，所述主控PCBA板包括USB接口，用于传输USB格式数字电视信号。
具体地，在实用新型的一实施例中，所述主控PCBA板包括HDMI接口，用于传输HDMI格式的图像信号。
具体地，在实用新型的一实施例中，所述主控PCBA板包括V-BY-ONE，用于传输V-BY-ONE格式的数字电视信号。
具体地，在实用新型的一实施例中，所述主控PCBA板包括RF解调模组，用于接收射频信号。
具体地，在实用新型的一实施例中，所述主控PCBA板包括遥控信号接收模块，用于接收遥控信号。
本申请实施例还提供一种数字电视，其包括上述任一项所述的数字电视信号处理装置。
本申请实施例的技术方案具有以下优点：本申请中，通过将主控PCBA板以及数字解调器标准模块分离开来，所述数字解调器标准模块与所述主控PCBA板以可拆卸方式连接，所述数字解调器标准模块用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板至少用于对数字传输流信号进行解码处理，为适应不同的国家地区，只需要单独更换数字解调器标准模块即可，保留主控PCBA板不变，从而无需更改整个PCBA板，降低了PCBA维护复杂度，有利于物料通用化。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例一数字电视信号处理装置结构示意图；
图2为本发明实施例二数字电视信号处理装置结构示意图；
图3为本发明实施例三数字电视信号处理装置结构示意图；
图4为本发明实施例四数字电视信号处理装置结构示意图；
图5为本发明实施例五数字电视信号处理装置结构示意图；
图6为本发明实施例六数字电视信号处理装置结构示意图；
图7为本申请实施例七数字电视信号处理装置结构示意图；
图8为本申请实施例八数字电视信号处理装置结构示意图；
图9为本申请实施例九数字电视信号处理装置结构示意图；
图10为本申请实施例十数字电视信号处理装置结构示意图；
图11为本申请实施例十一数字电视信号处理装置结构示意图；
图12为本申请实施例十二数字电视信号处理装置结构示意图；
图13为本申请实施例十三数字电视信号处理装置结构示意图；
图14为本申请实施例十四数字电视信号处理装置结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，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，都属于本申请保护的范围。
图1为本申请实施例一数字电视信号处理装置结构示意图；如图1所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
本实施例中，将现有技术中跟数字解调有关的结构从主控PCBA板101独立开来，并通过开拆卸的方式与主控PCBA板101连接，当需要与特定国家地区的调制方式匹配时，只要更换对应的数字解调器标准模块102即可，与此同时由于主控PCBA上不存在跟数字解调有关结构，因此，也就无须对主控PCBA做诸如硬件上的改动。因此，一套主控PCBA板101适用于所有不同制式的数字解调器。
但是，需要说明的是，本实施例虽然示意性的说明可适用于数字电视，但是，对于本领域普通技术人员来说，无须创造性劳动即刻想到，也可以适用于传统的黑白电视、彩色电视，在此不再赘述。
图2为本发明实施例二数字电视信号处理装置结构示意图；如图2所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
本实施例中，所述数字解调器标准模块102包括DTMB数字解调器标准模块112。
DTMB全称为Digital Television Terrestrial Multimedia Broadcasting，中文含义为"数字电视地面广播传输系统帧结构、信道编码和调制"。根据地面数字多媒体电视广播的服务需求、传输条件和信道特征，国标DTMB传输系统采用了创新的时域同步正交频分复用(TDS-OFDM)单多载波调制方式。这种调制方式，主要针对地面数字多媒体电视广播传输信道线性时变的宽带传输信道特性(频域选择性与时域选择性同时存在的传输信道)所设计。
图3为本发明实施例三数字电视信号处理装置结构示意图；如图3所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
本实施例中，所述数字解调器标准模块102包括DVB-T/T2数字解调器标准模块122，前者是第一代，后者是第二代，两者基本技术路线的共同点 是CP-OFDM技术、频域导频技术和QAM调制技术。
DVB-T2(Digital Video Broadcasting–Second Generation Terrestrial，第二代欧洲数字地面电视广播)是第二代欧洲数字地面电视广播传输标准，以下简称T2，在8MHz频谱带宽内所支持的最高TS流传输速率约50.1Mbit/s(如包括可能去除的空包，最高TS流传输速率可达100Mbit/s)。
图4为本发明实施例四数字电视信号处理装置结构示意图；如图4所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
本实施例中，所述数字解调器标准模块102包括DVB-C/C2数字解调器标准模块132，前者是第一代，后者是第二代。
DVB-C/C2(Digital Video Broadcasting-Cable/Cable2，电缆数字电视广播)，DVB-C/C2采用带宽窄、频带利用率高、抗干扰能力较强的调制方式。同时，由于信道信噪比高,误码率较低，纠错能力要求不很高。因此,DVB-C的信道部分采用RS码和卷积码交织技术，正交幅度调制(QAM)。DVB-C硬件上可以包括调制器、频道分配器、有线电视网等。
图5为本发明实施例五数字电视信号处理装置结构示意图；如图5所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
本实施例中，所述数字解调器标准模块102包括ATSC数字解调器标准模块142。
ATSC是美国的数字电视国家标准，ATSC的英文全称是Advanced Television Systems Committee(美国高级电视业务顾问委员会)。ATSC制信源编码采用MPEG-2视频压缩和AC－3音频压缩；信道编码采用VSB调制，提供了两种模式：地面广播模式(8VSB)和高数据率模式(16VSB)。
图6为本发明实施例六数字电视信号处理装置结构示意图；如图6所示， 其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
本实施例中，所述数字解调器标准模块102包括ISDB数字解调器标准模块152。
ISDB(Integrated Services Digital Broadcasting-Terrestrial，基于地面的集成数字电视广播)主要适用于日本的数字电视，其和欧洲的D VB类似，传输方案仍是COFDM，使用的编码方式相同，调制方法也相同，也分为2K和8K两种模式。因为日本电视射频带宽为6M H z,所以载波数载波间隔有所差别。ISD B具有柔软性、扩展性、共通性等特点，可以灵活地集成和发送多节目的电视和其它数据业务
图7为本申请实施例七数字电视信号处理装置结构示意图；如图7所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
本实施例中，所述主控PCBA板101包括TUNER模组111，所述TUNER模组用来接收RF信号对其进行过滤等处理以生成数字电视中频信号。TUNER模块由TUNER、CPU和回传(可选)组成。
数字解调器标准模块102可以包括上述图2-图6中的任一标准模块或者多个模块。
图8为本申请实施例八数字电视信号处理装置结构示意图；如图8所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
具体地，在实用新型的一实施例中，所述主控PCBA板101包括主SOC芯片121，所述主SOC芯片用于对数字传输流信号进行解码处理。
数字解调器标准模块102可以包括上述图2-图6中的任一标准模块或者多个模块。
图9为本申请实施例九数字电视信号处理装置结构示意图；如图9所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
具体地，在实用新型的一实施例中，所述主控PCBA板101包括USB接口131，用于传输USB格式数字电视信号。
图10为本申请实施例十数字电视信号处理装置结构示意图；如图10所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
具体地，在实用新型的一实施例中，所述主控PCBA板101包括HDMI接口141，用于传输HDMI格式数字电视信号中的图像信号。
HDMI(High Definition Multimedia Interface，高清晰度多媒体接口)是一种数字化视频/音频接口技术，是适合影像传输的专用型数字化接口，其可同时传送音频和影像信号，最高数据传输速度为4.5GB/s，同时无需在信号传送前进行数/模或者模/数转换。
图11为本申请实施例十一数字电视信号处理装置结构示意图；如图11所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
具体地，在实用新型的一实施例中，所述主控PCBA板101包括V-BY-ONE151，用于传输V-BY-ONE格式的数字电视信号。
V-by-One是专门面向图像传输开发出的数字接口标准。信号的输入输出水平采用LVDS(低电压差动信号)。板卡的信号频率约为1GHz。与此前的 CMOS/TTL方式相比，可将传输线的数量减少至此前的大约1/10。V-by-One的IC支持二条顺向通道；支持最高4K×2K、更新频率240Hz、每个色彩12位(使用于多个IC上的三十二条通道)。V-by-One也将支持各种3D影像讯号与媲美电影院的高画质解析，例如纵横比为21：9、像素为2560×1080的影像讯号传输。
图12为本申请实施例十二数字电视信号处理装置结构示意图；如图12所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
具体地，在实用新型的一实施例中，所述主控PCBA板101包括RF解调模组161，用于接收射频信号。
图13为本申请实施例十三数字电视信号处理装置结构示意图；如图13所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
具体地，在实用新型的一实施例中，所述主控PCBA板101包括遥控信号接收模块171，用于接收遥控信号。
图14为本申请实施例十四数字电视信号处理装置结构示意图；如图14所示，其可以包括主控PCBA板101以及数字解调器标准模块102，所述数字解调器标准模块102与所述主控PCBA板101以可拆卸方式连接，所述数字解调器标准模块102用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板101至少用于对数字传输流信号进行解码处理。
本实施例中，所述主控PCBA板101包括：
TUNER模组111，所述TUNER模组用来生成数字电视中频信号。
主SOC芯片121，所述主SOC芯片用于对数字传输流信号进行解码处理。
USB接口131，用于传输USB格式数字电视信号。
HDMI接口141，用于传输HDMI格式的数字电视信号。
V-BY-ONE接口151，用于传输V-BY-ONE格式的数字电视信号。
RF解调模组161，用于接收射频信号。
遥控信号接收模块171，用于接收遥控信号。
需要说明的是，主控PCBA板101包括的组件可以根据实际需求灵活配置，比如只包括图7-图13的任一一个结构单元，也可包括任意两个或多个结构单元。
本申请实施例还提供了一种数字电视，其包括上述任一实施例记载的数字电视信号处理装置。在此不再附图说明。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到各实施方式可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件。基于这样的理解，上述技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，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申请各实施例技术方案的精神和范围。

Claims (10)

  1. 一种数字电视信号处理装置，其特征在于，包括主控PCBA板以及数字解调器标准模块，所述数字解调器标准模块与所述主控PCBA板以可拆卸方式连接，所述数字解调器标准模块用于对数字电视中频信号进行解调处理，得到数字传输流信号，所述主控PCBA板至少用于对数字传输流信号进行解码处理。
  2. 根据权利要求1所述的装置，其特征在于，所述数字解调器标准模块为DTMB或DVB-T/T2或DVB-C/C2或ATSC或ISDB数字解调器标准模块。
  3. 根据权利要求1所述的装置，其特征在于，所述主控PCBA板包括TUNER模组，所述TUNER模组用来生成数字电视中频信号。
  4. 根据权利要求1所述的装置，其特征在于，所述主控PCBA板包括主SOC芯片，所述主SOC芯片用于对数字传输流信号进行解码处理。
  5. 根据权利要求1所述的装置，其特征在于，所述主控PCBA板包括USB接口，用于传输USB格式数字电视信号。
  6. 根据权利要求1所述的装置，其特征在于，所述主控PCBA板包括HDMI接口，用于传输HDMI格式的数字电视信号。
  7. 根据权利要求1所述的装置，其特征在于，所述主控PCBA板包括V-BY-ONE，用于传输V-BY-ONE格式的图像信号。
  8. 根据权利要求1所述的装置，其特征在于，所述主控PCBA板包括RF解调模组，用于接收射频信号。
  9. 根据权利要求1所述的装置，其特征在于，所述主控PCBA板包括遥控信号接收模块，用于接收遥控信号。
  10. 一种数字电视，其特征在于，包括权利要求1-9任一项所述的装置。
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