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WO2016011720A1 - 一种显示系统、显示系统的蓝牙音频播放方法及装置 - Google Patents

一种显示系统、显示系统的蓝牙音频播放方法及装置 Download PDF

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Publication number
WO2016011720A1
WO2016011720A1 PCT/CN2014/089557 CN2014089557W WO2016011720A1 WO 2016011720 A1 WO2016011720 A1 WO 2016011720A1 CN 2014089557 W CN2014089557 W CN 2014089557W WO 2016011720 A1 WO2016011720 A1 WO 2016011720A1
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Prior art keywords
bluetooth
information
output
audio
signal input
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PCT/CN2014/089557
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English (en)
French (fr)
Inventor
傅陈彬
李少安
Original Assignee
京东方科技集团股份有限公司
北京京东方视讯科技有限公司
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Priority to US14/436,744 priority Critical patent/US20160277791A1/en
Publication of WO2016011720A1 publication Critical patent/WO2016011720A1/zh

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    • H—ELECTRICITY
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H04N21/4396—Processing of audio elementary streams by muting the audio signal
    • H—ELECTRICITY
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    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • H—ELECTRICITY
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    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
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    • H—ELECTRICITY
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    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
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    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
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    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
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    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
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    • H04N21/439—Processing of audio elementary streams
    • H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • 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
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals

Definitions

  • the present invention relates to the field of smart television technologies, and in particular, to a Bluetooth audio playing method and apparatus for a display system and a display system.
  • the smart TV's main function in the traditional sense is to realize the decoding and display of various audio and video signals, which has a clear division of the classification and processing of audio and video signals.
  • Different audio and video signals are decoded on the TV using completely different signal channels and finally outputted.
  • an ordinary smart TV can be divided into the following signal channels: Android system, HDMI, analog TV, digital TV, video, component Component, computer, USB and other interfaces.
  • Bluetooth As a short-range wireless information transmission technology, Bluetooth has been widely used in smart devices such as mobile phones. Electronic devices such as Bluetooth headsets and Bluetooth speakers have become popular audio devices. At present, only the application on the operating system of the smart TV supports Bluetooth transmission, while other applications on the non-operating system basically do not support Bluetooth transmission. Therefore, all the traditional signal channels such as digital TV signals, analog TV signals, HDMI signals, etc. can only be output through the built-in output interface of the TV, and cannot be output to external devices such as Bluetooth speakers via Bluetooth. Therefore, how to realize the Bluetooth transmission of information in all signal channels in smart TV will also be one of the problems that need to be solved in the new generation of smart TV.
  • the invention provides a Bluetooth audio playing method and device for a display system and a display system, which are used for realizing Bluetooth transmission of signals in all signal input channels in a television.
  • a Bluetooth audio playing method of a display system including:
  • the image information is output to a display screen, and the audio information is converted into a Bluetooth signal and the Bluetooth signal is output.
  • the method further includes: before receiving user selection information for the signal input channel,
  • the audio playback interface built into the display system is set to a mute state.
  • a Bluetooth audio playback device of a display system comprising:
  • a switching module configured to receive user selection information for a signal input channel, and switch the image processing system to a corresponding signal input channel according to the selection information
  • a capture module configured to capture audio information and image information output by the corresponding signal input channel
  • An output module that outputs the image information to a display screen, and converts the audio information into a Bluetooth signal and outputs the Bluetooth signal.
  • the device also includes:
  • a detection module for detecting a Bluetooth connection status and matching a Bluetooth audio playback device
  • a mute module configured to set an audio play interface built in the display system to a mute state.
  • a display system comprising:
  • An image processing system includes a plurality of signal input channels configured to process input information from respective interfaces and output audio information and image information;
  • a display screen configured to output an image based on the received image information
  • a Bluetooth processing system configured to switch an image processing system to one of the plurality of signal input channels, capture audio information and image information output by a signal input channel currently switched to, output the image information to a display screen, and The audio information is converted into a Bluetooth signal and the Bluetooth signal is output.
  • the plurality of signal input channels respectively include an input interface, a processing unit, and an output interface; wherein the processing unit includes an audio and video decoder.
  • the Bluetooth processing system includes:
  • a processor configured to switch an image processing system to one of the plurality of signal input channels, capture audio information and image information output from a signal input channel currently switched to, output the image information to a display screen, and The audio information is output to a Bluetooth processing chip;
  • a Bluetooth processing chip configured to convert the audio information into a Bluetooth signal and output the Bluetooth signal.
  • the processor includes a single core or multi-core processor on which an operating system runs.
  • the display system further includes:
  • a Bluetooth audio playback device configured to receive the Bluetooth signal and play a sound signal according to the Bluetooth signal.
  • the Bluetooth processing system directly outputs the image information to a display screen, or processes the image information and outputs the image information to a display screen.
  • the above solution proposed by the present invention realizes the application of Bluetooth audio transmission in a display system.
  • the Bluetooth processing system controls the switching of each signal input channel of the display system, monitors the audio information and image information outputted by the current signal input channel in real time, and converts the audio information into a Bluetooth signal according to the Bluetooth protocol, and then outputs the image information to the Bluetooth device, and simultaneously outputs the image information. After processing or directly output to the display. .
  • FIG. 1 is a schematic structural diagram of a smart television according to an embodiment of the present invention.
  • FIG. 2 is a flow chart of a Bluetooth audio playing method of a smart TV according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a smart television according to an embodiment of the present invention.
  • a smart television according to an embodiment of the present invention may include:
  • a television image processing system 101 comprising a plurality of signal input channels for processing input information from respective interfaces and outputting at least audio information and image information;
  • a display screen 102 for outputting an image based on image information received from the television image processing system 101;
  • the Bluetooth processing system 103 controls the television image processing system 101 to switch to one of the plurality of signal input channels according to the user's selection, captures audio information and image information output by the signal input channel currently switched to, and outputs the image information. To the display screen, converting the audio information into a Bluetooth signal, and outputting the Bluetooth signal to the Bluetooth audio playback device 104;
  • a Bluetooth audio playback device 104 that outputs sound in accordance with a Bluetooth signal received from the Bluetooth processing system 103.
  • the above-mentioned smart television system can be used for audio signals of all signal channels in a smart television, enabling playback through an external bluetooth speaker, and without using any audio connection cable, thereby enabling any speaker to be placed indoors. Wirelessly receive audio information from the TV output.
  • the television image processing system 101 in a smart television system may include one or more signal input channels such as an HDMI signal input channel, an analog television signal input channel (receiving information from an RF interface), and a digital television signal input.
  • Channel (receives information from the RF interface), video signal input channel (receives information from the AV interface), component signal input channel (receives information from YPbPr), electronic device signal input channel (receives information from the VGA interface), and USB signal input channel.
  • Each signal input channel includes an information input interface, an information output interface, and an information processing unit.
  • the information processing unit is mainly used for decoding and other processing of input information input from the corresponding input interface, and outputting the obtained image information and audio information from the corresponding output interface.
  • the plurality of signal input channels respectively include a corresponding input interface, an output interface, and a processing unit.
  • the processing unit is configured to process information input from the input interface, and output the processed information from the output interface in the form of audio information and image information.
  • the processing unit may be an audio/video decoder or other processing unit for performing corresponding audio and video decoding or other processing on the input information.
  • the HDMI signal input channel is used for receiving high-definition video signals, and can receive high-definition video signals through a set-top box, a DVD or other electronic device, decode the received high-definition video signals, and output the obtained image information and audio information respectively.
  • the digital television signal input channel is used for receiving DTMB digital television signals from the set top box, decoding and other processing of the received DTMB digital television signals, and respectively outputting image information and audio information.
  • the USB signal input channel receives input information from the USB device, decodes or otherwise processes the received input information, and outputs the obtained image information and audio information, respectively.
  • the electronic device signal input channel is used to connect an electronic device having a VGA interface such as a computer, and directly outputs the received VGA signal. That is, in this interface mode, the display screen of the television can be used as a display of an electronic device such as a computer, and the player of the television is used as a player of the electronic device.
  • the video signal input channel is used for a video signal output by a video device such as a receiver top box or a DVD, and after decoding the received video signal, the obtained image information and audio information are respectively output.
  • the component signal input channel is used for component signals output by a video device such as a receiver top box or a DVD, and after decoding the received component signals, the obtained image information and audio information are respectively output.
  • the analog television signal channel is used for receiving an analog television signal input through the RF interface (that is, an analog television signal input through a cable television line), and after outputting the received analog television signal, etc., respectively outputting the obtained image information and audio. information.
  • the signal input channel of the smart television system is not limited to the above-mentioned several types, and may include any other television signal channel, which is not limited herein.
  • the smart television further includes a Bluetooth processing system 103, which may include a processor and a Bluetooth processing chip.
  • the processor may comprise a single-core or multi-core processor such as a single core, a dual core or a quad core, on which an embedded operating system can be run.
  • the processor is configured to capture audio information and/or image information output from respective signal input channels in the television image processing system 101, output the captured audio information to a Bluetooth processing chip, and output the captured image information to a display screen.
  • the Bluetooth processing chip converts the audio information received from the processor into a Bluetooth signal based on the Bluetooth standard, and outputs the Bluetooth signal to the Bluetooth audio player.
  • the Bluetooth processing chip can adopt a common Bluetooth processing chip, such as a Bluetooth processing chip of RealTek's RTL8723AS model, which can support the Bluetooth 3.0 protocol.
  • the Bluetooth processing system 103 can output the captured image information directly to the display screen 102 or process it and output it to the display screen 102.
  • the image information can be embedded in a small window of the user interaction interface, and other information such as a signal input channel switching selection button and the like can also be displayed on the user interaction interface.
  • the embedded operating system may include an operating system such as Android, iPhone OS, Mac OS, Windows Mobile, or Symbian.
  • Bluetooth processing system 103 Specifically, the specific functions of the Bluetooth processing system 103 are described below.
  • the user interacts with an operating system running on the processor in the Bluetooth processing system 103 through a user interaction interface.
  • the user can select a signal input channel that is currently to be received through the user interaction interface. For example, if the user wants to watch digital television, the digital television signal channel is selected, and if the user wants to connect to the DVD, the component signal input channel is selected.
  • the processor receives the user's selection, controls the television processing system 101 to switch to the signal input channel selected by the user, and receives corresponding input information through the signal input channel to which the switch is made, and correspondingly processes the corresponding input information and outputs the obtained audio.
  • Information and image information are examples of images.
  • the processor captures from the switch to The audio information and image information outputted by the signal input channel output the audio information to the Bluetooth processing chip, and output the image information to the display screen for display.
  • the Bluetooth processing chip converts the received audio information into a Bluetooth signal according to the Bluetooth protocol, and outputs it to the Bluetooth playback device 104.
  • the Bluetooth playback device 104 may include a Bluetooth speaker, a Bluetooth headset, etc., which receives Bluetooth audio information output from the Bluetooth processing system 103 and plays it in the form of sound.
  • FIG. 2 is a flow chart showing a Bluetooth audio playing method of a smart TV according to an embodiment of the invention.
  • a Bluetooth audio playing method of a smart television according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.
  • a Bluetooth audio playing method of a smart TV according to an embodiment of the present invention may include:
  • Step 201 receiving user selection information of the signal input channel, and switching the television image processing system to the corresponding signal input channel according to the selection information;
  • Step 202 Capture audio information and image information output from the corresponding signal input channel
  • Step 203 Output image information to a display screen, convert the audio information into a Bluetooth signal, and output the Bluetooth signal to the Bluetooth audio playback device.
  • the method further includes: before step 201:
  • the smart television of the present invention first monitors the connection state of the Bluetooth audio playback device 104 after powering on. In the initial state, a match with the Bluetooth audio playback device 104 is required. For example, manually enter matching information and user information.
  • the Bluetooth processing system 103 stores pairing information of a Bluetooth audio playback device such as a Bluetooth speaker, including the identification name of the Bluetooth audio playback device, user information, and the like. Thereafter, each time the smart TV is turned on, the Bluetooth processing system 103 first scans the surrounding Bluetooth devices to find all Bluetooth devices. The information of all scanned Bluetooth devices is then compared with the paired information of the saved Bluetooth audio playback device to determine if there is a successful pairing. If there is a successfully paired Bluetooth device, the Bluetooth device is automatically connected.
  • the Android built system is used as an example, and the Android system firstly plays the audio playing interface on the smart TV platform. (such as an audio power amplifier) is muted to turn off the speakers built into the smart TV. Therefore, the audio information output from the corresponding signal input channel in the television image processing system is not
  • the method plays sound through the built-in speaker of the smart TV, and the smart plays through the Bluetooth audio playing device 104.
  • the Bluetooth processing system 103 can display a user interaction interface to the user through the display screen 104, and the user can operate the user interaction interface through the remote controller to select an action that is currently desired, such as watching a television program or watching. DVD programs, etc. If the user chooses to watch the digital television program, the Bluetooth processing system 103 controls the television image processing system 101 to switch to the digital television signal input channel, at which time the digital television signal input channel receives the digital television signal, decodes it, etc., and processes it. After the audio information and image information are output.
  • the various signal input channels in the television image processing system 101 can be designed to be independent signal channel applications based on the operating system in the Bluetooth processing system 103.
  • a corresponding signal channel application is invoked from the operating system to switch the television image processing system 101 to a corresponding signal input channel, and the input signal is received and switched by the switched signal input channel. Processing accordingly.
  • step 201 specifically, the signal input channel can be switched as follows:
  • TvProvider Establish a dedicated operating system service program, for example, named TvProvider, for accessing the encapsulated signal channel application interface.
  • step 202 the Bluetooth processing system 103 switches the television image processing system 101 to the corresponding signal input channel, then monitors the signal input channel, and captures the audio information and video information output by the signal input channel.
  • the Bluetooth processing system 103 performs Bluetooth protocol conversion on the captured audio information via the Bluetooth processing chip, and outputs the converted Bluetooth signal to the Bluetooth audio playback device.
  • the Bluetooth processing system 103 also processes the captured image information and outputs the processed image information to the display screen for image display, or directly to the display screen for image display.
  • the following describes an input channel switching method by taking a high-definition video played by a user using an HDMI signal channel as an example.
  • the user opens the "Source Switching" menu via the operating system interface, which actually launches the ChangeSource application.
  • the user selects the HDMI signal input channel in the "Source Switch” menu and determines that the ChangeSource application sends a system message to the TvProvider server to initiate the HDMI signal input channel in response to the operation.
  • the TvProvider service program runs in the background after the operating system starts.
  • the TvProvider server accesses the signal channel application interface and sets the display port to switch to the HDMI signal input channel according to the received system message. Then, the corresponding input information is received by the HDMI signal input channel and the corresponding input information is processed, and then the processed information is output.
  • the TvProvider service program captures the output audio information and calls a corresponding program in the system (such as a Bluetooth service program) to output the audio information to the Bluetooth processing chip, and the Bluetooth processing chip converts the audio information into a Bluetooth signal and outputs it to an external Bluetooth audio player. device.
  • a corresponding program in the system such as a Bluetooth service program
  • the Bluetooth processing chip converts the audio information into a Bluetooth signal and outputs it to an external Bluetooth audio player. device.
  • Switches of other signal channels is the same as HDMI. That is, in response to the user confirming the selected channel, ChangeSource sends a system message to the TvProvider server, and the TvProvider server accesses the function application interface and configures the correct signal channel port to complete the channel switch.
  • the present invention also provides a Bluetooth audio playback device for a smart TV, including:
  • Switching module receiving user selection information of the signal input channel, and switching the television image processing system to the corresponding signal input channel according to the selection information;
  • a capture module that captures audio information and image information output from the corresponding signal input channel
  • the output module outputs image information to the display screen, converts the audio information into a Bluetooth signal, and outputs the Bluetooth signal to the Bluetooth audio playback device.
  • the device is consistent with the Bluetooth audio playing method of the above-mentioned smart TV.
  • the device is consistent with the Bluetooth audio playing method of the above-mentioned smart TV.
  • the above technical solution according to an embodiment of the present invention enables Bluetooth audio transmission to be applied in a smart television system. Control the switching of each signal input channel of the TV through the Bluetooth processing system, monitor the audio information and image information output by the current signal input channel in real time, convert the audio information into a Bluetooth signal based on the Bluetooth protocol and output to the Bluetooth device, and process the image information at the same time And output to the display, or directly output to the display.
  • the above technical solution according to an embodiment of the present invention enables wireless transmission of audio signals of a smart television and enables use of a home theater Bluetooth speaker in a home environment.
  • the above solution proposed by the present invention is not only applicable to smart electricity. Depending on the system, it can also be applied to other similar display systems.
  • the technical solution according to an embodiment of the present invention can be applied to other display systems having a plurality of different signal channels, and Bluetooth transmission of signals under all signal channels in the display system can be realized by utilizing an operating system supporting Bluetooth transmission in the display system.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Automation & Control Theory (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

本发明实施例公开了一种显示系统、显示系统的蓝牙音频播放方法及装置。所述显示系统包括：图像处理系统，包括多个信号输入通道，所述多个信号输入通道分别用于处理相应接口的输入信息，并输出音频信息和图像信息；显示屏，根据接收到的图像信息输出图像；蓝牙处理系统，将图像处理系统切换至所述多个信号输入通道之一，并捕获当前切换至的信号输入通道输出的音频信息和图像信息，将所述图像信息输出至显示屏，将所述音频信息转换成蓝牙信号并输出蓝牙信号。根据本发明实施例的方法使得能够在显示系统尤其是智能电视上应用蓝牙技术，以使智能电视能够使用蓝牙音频播放设备。

Description

一种显示系统、显示系统的蓝牙音频播放方法及装置 技术领域
本发明涉及智能电视技术领域，尤其涉及一种显示系统、显示系统的蓝牙音频播放方法及装置。
背景技术
智能电视作为独立的显示设备，其传统意义上的主要功能是实现各种音、视频信号的解码及显示，其对于音、视频信号的分类和处理有明确的划分。不同的音视频信号在电视上采用完全不同的信号通道进行解码并最终输出显示。例如普通的智能电视可以划分为以下信号通道：Android系统、HDMI、模拟电视、数字电视、视频、分量Component、电脑、USB等接口。
蓝牙作为一种近距离无线信息传输技术，在手机等智能设备上的应用已非常普遍，蓝牙耳机、蓝牙音箱等电子设备也已成为当前流行的音效设备。目前智能电视中仅操作系统上的应用才支持蓝牙传输，而其他非操作系统上的应用基本上都不支持蓝牙传输。因此所有传统的信号通道如数字电视信号、模拟电视信号、HDMI信号等中的信息只能通过电视内置的固有输出接口输出，而无法通过蓝牙向外部设备如蓝牙音箱输出。因此，如何实现智能电视中所有信号通道中信息的蓝牙传输，也将是新一代智能电视需要解决的问题之一。
发明内容
本发明提出了一种显示系统、显示系统的蓝牙音频播放方法及装置，用于实现电视中针对所有信号输入通道中信号的蓝牙传输。
根据本发明一方面，提出了一种显示系统的蓝牙音频播放方法，包括：
接收用户对于信号输入通道的选择信息，并根据所述选择信息将图像处理系统切换至相应信号输入通道；
捕获所述相应信号输入通道输出的音频信息和图像信息；
将所述图像信息输出至显示屏，以及将所述音频信息转换成蓝牙信号并输出所述蓝牙信号。
所述方法还包括：在接收用户对于信号输入通道的选择信息之前，
检测蓝牙连接状态，并匹配蓝牙音频播放设备；
将所述显示系统内置的音频播放接口设置为静音状态。
根据本发明另一方面，其提供了一种显示系统的蓝牙音频播放装置，包括：
切换模块，配置为接收用户对于信号输入通道的选择信息，并根据所述选择信息将图像处理系统切换至相应信号输入通道；
捕获模块，配置为捕获所述相应信号输入通道输出的音频信息和图像信息；
输出模块，其将所述图像信息输出至显示屏，以及将所述音频信息转换成蓝牙信号并输出所述蓝牙信号。
所述装置还包括：
检测模块，用于检测蓝牙连接状态，并匹配蓝牙音频播放设备；
静音模块，用于将所述显示系统内置的音频播放接口设置为静音状态。
根据本发明另一方面，提供了一种显示系统，包括：
图像处理系统，包括多个信号输入通道，所述多个信号输入通道分别配置为处理来自相应接口的输入信息，并输出音频信息和图像信息；
显示屏，配置为根据接收到的图像信息来输出图像；
蓝牙处理系统，配置为将图像处理系统切换至所述多个信号输入通道之一，捕获当前切换至的信号输入通道输出的音频信息和图像信息，将所述图像信息输出至显示屏，以及将所述音频信息转换成蓝牙信号并输出所述蓝牙信号。
其中，所述多个信号输入通道分别包括输入接口、处理单元和输出接口；其中，所述处理单元包括音视频解码器。
其中，所述蓝牙处理系统包括：
处理器，配置为将图像处理系统切换至所述多个信号输入通道之一，捕获从当前切换至的信号输入通道输出的音频信息和图像信息，将所述图像信息输出至显示屏，以及将所述音频信息输出至蓝牙处理芯片；
蓝牙处理芯片，配置为将所述音频信息转换成蓝牙信号并输出所述蓝牙信号。
其中，所述处理器包括单核或多核处理器，其上运行有操作系统。
所述显示系统还包括：
蓝牙音频播放设备，配置为接收所述蓝牙信号，并根据所述蓝牙信号播放声音信号。
其中，所述蓝牙处理系统将所述图像信息直接输出至显示屏，或者对所述图像信息进行处理后输出至显示屏。
本发明提出的上述方案实现了蓝牙音频传输在显示系统中的应用。通过蓝牙处理系统控制显示系统的各个信号输入通道的切换，实时监控当前信号输入通道输出的音频信息和图像信息，并将音频信息根据蓝牙协议转换成蓝牙信号后输出至蓝牙设备，同时将图像信息进行处理后或者直接输出至显示屏。。
附图说明
图1是根据本发明实施例的智能电视的结构示意图；
图2是根据本发明实施例智能电视的蓝牙音频播放方法流程图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚明白，以下结合具体实施例，并参照附图，对本发明作进一步的详细说明。
图1示出了根据本发明实施例的一种智能电视的结构示意图。如图1所示，根据本发明实施例的一种智能电视可以包括：
电视图像处理系统101，其包括多个信号输入通道，多个信号输入通道分别用于处理来自相应接口的输入信息，并输出至少音频信息和图像信息；
显示屏102，其用于根据从电视图像处理系统101接收到的图像信息来输出图像；
蓝牙处理系统103，其根据用户的选择，控制电视图像处理系统101切换至多个信号输入通道之一，捕获由当前切换至的信号输入通道输出的音频信息和图像信息，并将所述图像信息输出至显示屏，将所述音频信息转换成蓝牙信号，并将蓝牙信号输出至蓝牙音频播放设备104；
蓝牙音频播放设备104，其根据从蓝牙处理系统103接收的蓝牙信号输出声音。
根据本发明实施例的上述智能电视系统可以针对智能电视中所有信号通道的音频信号，使得能够通过外置蓝牙音箱进行播放，并且不需要使用任何音频连接线材，从而实现在室内任意放置音箱也能够无线接收电视输出的音频信息。
下面根据具体的实施方式详细介绍构成智能电视系统的不同组成部件的结构以及功能。
根据本发明实施例的智能电视系统中的电视图像处理系统101可以包括一种或多种信号输入通道，如HDMI信号输入通道、模拟电视信号输入通道(从RF接口接收信息)、数字电视信号输入通道(从RF接口接收信息)、视频信号输入通道(从AV接口接收信息)、分量信号输入通道(从YPbPr接收信息)、电子设备信号输入通道(从VGA接口接收信息)和USB信号输入通道。每个信号输入通道均包括信息输入接口、信息输出接口以及信息处理单元。信息处理单元主要用于将从相应输入接口输入的输入信息进行解码及其他处理，以及从相应的输出接口输出得到的图像信息和音频信息。
其中，多个信号输入通道分别包括相应的输入接口、输出接口以及处理单元。处理单元用于处理从输入接口输入的信息，并将处理后的信息从输出接口以音频信息和图像信息的形式输出。处理单元可以是音视频解码器或其他处理单元，用于对输入的信息进行相应音视频解码或者其他处理。
HDMI信号输入通道用于接收高清视频信号，其可以通过机顶盒、DVD或其他电子设备接收高清视频信号，对所接收到的高清视频信号进行解码处理，并分别输出得到的图像信息和音频信息。
数字电视信号输入通道用于从机顶盒接收DTMB数字电视信号，对所接收到的DTMB数字电视信号进行解码及其它处理，并分别输出得到图像信息和音频信息。
USB信号输入通道从USB设备接收输入信息，对所接收的输入信息进行解码或其它处理，并分别输出得到的图像信息和音频信息。
电子设备信号输入通道用于连接电脑等具有VGA接口的电子设备，其直接将接收到的VGA信号输出。即，在这种接口模式下，电视机的显示屏可以作为电脑等电子设备的显示器，并将电视机的播放器作为电子设备的播放器。
视频信号输入通道用于接收机顶盒、DVD等视频设备输出的视频信号，在对接收到的视频信号进行解码等处理后，分别输出得到的图像信息和音频信息。
分量信号输入通道用于接收机顶盒、DVD等视频设备输出的分量信号，在对接收到的分量信号进行解码处理后，分别输出得到的图像信息和音频信息。
模拟电视信号通道用于接收通过RF接口输入的模拟电视信号(即通过有线电视线输入的模拟电视信号)，在对接收到的模拟电视信号进行解码等处理后，分别输出得到的图像信息和音频信息。
当然，根据本发明实施例的智能电视系统的信号输入通道不限于上述列举的几种，还可以包括其他任何电视信号通道，在此不作限制。
根据本发明实施例的智能电视还包括蓝牙处理系统103，蓝牙处理系统103可以包括处理器和蓝牙处理芯片。
可选地，所述处理器可以包括单核、双核或四核等单核或多核处理器，其上可运行嵌入式操作系统。处理器用于捕获从电视图像处理系统101中相应信号输入通道输出的音频信息和/或图像信息，将所捕获的音频信息输出至蓝牙处理芯片，并将所捕获的图像信息输出至显示屏。
蓝牙处理芯片基于蓝牙标准将从处理器接收到的音频信息转换成蓝牙信号，并输出将蓝牙信号至蓝牙音频播放器。这里，蓝牙处理芯片可采用常见的蓝牙处理芯片，如采用RealTek公司的RTL8723AS型号的蓝牙处理芯片，其可支持蓝牙3.0协议。
蓝牙处理系统103可以将所捕获的图像信息直接输出至显示屏102，或者对其进行处理后输出至显示屏102。例如，可以将图像信息嵌入在用户交互界面的一个小视窗中显示，同时还在用户交互界面上显示其他信息，如信号输入通道切换选择按键等等。
可选地，嵌入式操作系统可以包括Android、iphone OS、Mac OS、Windows Mobile或Symbian等操作系统。
具体地，以下对蓝牙处理系统103的具体功能进行描述。
用户通过用户交互界面与运行于蓝牙处理系统103中处理器上的操作系统进行交互。例如用户可以通过该用户交互界面选择当前所要接收的信号输入通道。例如，用户如果想看数字电视，则选择数字电视信号通道，如果用户想接DVD，则选择分量信号输入通道等。处理器接收用户的选择，控制电视处理系统101切换至用户所选择的信号输入通道，并通过所切换至的信号输入通道接收相应的输入信息，对相应的输入信息进行相应处理并输出得到的音频信息和图像信息。处理器捕获从所切换至的 信号输入通道输出的音频信息和图像信息，将音频信息输出至蓝牙处理芯片，并将图像信息输出至显示屏进行显示。蓝牙处理芯片对接收到的音频信息根据蓝牙协议转换成蓝牙信号，并输出到蓝牙播放设备104。
可选地，蓝牙播放设备104可以包括：蓝牙音箱、蓝牙耳机等，其接收从蓝牙处理系统103输出的蓝牙音频信息，并将其以声音的形式进行播放。
图2示出了根据本发明实施例的一种智能电视的蓝牙音频播放方法流程图。结合图1和图2来描述根据本发明实施例的一种智能电视的蓝牙音频播放方法。如图2所示，根据本发明实施例的一种智能电视的蓝牙音频播放方法可以包括：
步骤201：接收用户对信号输入通道的选择信息，并根据选择信息将电视图像处理系统切换至相应信号输入通道；
步骤202：捕获从该相应信号输入通道输出的音频信息和图像信息；
步骤203：将图像信息输出至显示屏，将所述音频信息转换成蓝牙信号并将蓝牙信号输出至蓝牙音频播放设备。
可选地，该方法在步骤201之前还包括：
检测蓝牙连接状态，并匹配连接蓝牙音频播放设备；
将智能电视内置的音频播放接口设置为静音状态。
对于检测蓝牙连接状态的步骤，本发明中智能电视机在开机以后先监测蓝牙音频播放设备104的连接状态。在初始状态下，需要与蓝牙音频播放设备104进行匹配。例如手动输入匹配信息和用户信息。在与蓝牙音频播放设备配对成功的情况下，蓝牙处理系统103保存例如蓝牙音箱的蓝牙音频播放设备的配对信息，包括蓝牙音频播放设备的标识名称、用户信息等。之后，当每次开启智能电视时，蓝牙处理系统103会首先对周围的蓝牙设备进行扫描，查找所有蓝牙设备。然后将所有扫描到的蓝牙设备的信息与保存的蓝牙音频播放设备的配对信息进行比较，确定是否存在成功配对的情况。如果存在成功配对的蓝牙设备，则自动连接该蓝牙设备。
对于将智能电视内置的音频播放接口设置为静音状态的步骤，当智能电视和蓝牙音频播放设备104成功连接后，以智能内置的Android系统为例，Android系统首先将智能电视平台上的音频播放接口(如音频功率放大器)进行静音处理，以关闭智能电视内置的音箱。因此从电视图像处理系统中的相应信号输入通道输出的音频信息无 法通过智能电视内置的音箱播放声音，而智能通过该蓝牙音频播放设备104进行播放。
步骤201中，可选地，蓝牙处理系统103可以通过显示屏104向用户显示用户交互界面，用户可以通过遥控器操作该用户交互界面，以选择当前想要进行的动作，如观看电视节目或观看DVD节目等。如果用户选择观看数字电视节目，则蓝牙处理系统103控制电视图像处理系统101切换至数字电视信号输入通道，这时数字电视信号输入通道接收数字电视信号，并对其进行解码等处理，并将处理后的音频信息和图像信息输出。
具体地，可以将电视图像处理系统101中的各个信号输入通道设计成基于蓝牙处理系统103中操作系统的独立信号通道应用程序。响应于用户选择相应的信号输入通道，从操作系统调用相应的信号通道应用程序，以便将电视图像处理系统101切换至相应的信号输入通道，由切换至的信号输入通道接收输入信息并对其进行相应处理。
步骤201中，具体地，可以采用如下方式切换信号输入信道：
1、将智能电视的各个信号输入通道的功能(如HDMI高清视频信息播放功能、数字电视播放功能、模拟电视播放功能、USB信息传输功能、电脑连接功能、分量信息功能等)进行封装，建立一个统一的信号通道应用程序接口。
2、建立一个专用操作系统服务程序，例如命名为TvProvider，用于访问封装得到的信号通道应用程序接口。
3、在操作系统界面内，设计专门实现信号源访问的切换应用程序，例如，命名为ChangeSource。一旦用户通过交互界面启动切换应用程序，则该切换应用程序会自动调用系统服务程序访问相应的信号通应用程序接口，该信号通道应用程序接口则控制电视图像处理系统101切换至其对应的信号输入通道。
步骤202中，蓝牙处理系统103将电视图像处理系统101切换至相应信号输入通道，然后监视信号输入通道，并捕获该信号输入通道输出的音频信息和视频信息。
步骤203中，蓝牙处理系统103将捕获的音频信息经由蓝牙处理芯片进行蓝牙协议转换，将转换得到的蓝牙信号输出至蓝牙音频播放设备。另外，蓝牙处理系统103还对捕获的图像信息进行处理并将处理后的图像信息输出至显示屏进行图像显示，或者直接输出至显示屏进行图像显示。
下面以用户使用HDMI信号通道播放高清视频为例来说明上述输入信道切换方法。
首先，用户通过操作系统界面打开“信号源切换”菜单，这个操作实际上启动了ChangeSource应用程序。用户在“信号源切换”菜单中选中HDMI信号输入通道并确定，ChangeSource应用程序响应于该操作向TvProvider服务程序发出用于启动HDMI信号输入通道的系统消息。该TvProvider服务程序自操作系统启动后在后台运行。TvProvider服务程序根据收到的该系统消息，访问信号通道应用程序接口并设置显示端口切换到HDMI信号输入通道。然后，由HDMI信号输入通道接收相应的输入信息并对接收到的相应输入信息进行处理，然后输出处理后的信息。TvProvider服务程序捕获所输出的音频信息，并调用系统内的相应程序(如蓝牙服务程序)将音频信息输出至蓝牙处理芯片，由蓝牙处理芯片将音频信息转换成蓝牙信号并输出至外部蓝牙音频播放设备。
类似地，其它信号通道的切换与HDMI相同。即，响应于用户确认选择的通道，ChangeSource发送系统消息给TvProvider服务程序，TvProvider服务程序访问功能应用程序接口并配置正确的信号通道端口，从而完成通道切换。
此外，本发明还提出了一种智能电视的蓝牙音频播放装置，包括：
切换模块，接收用户对信号输入通道的选择信息，并根据选择信息将电视图像处理系统切换至相应信号输入通道；
捕获模块，捕获从该相应信号输入通道输出的音频信息和图像信息；
输出模块，将图像信息输出至显示屏，将音频信息转换成蓝牙信号并将蓝牙信号输出至蓝牙音频播放设备。
由于该装置与上述智能电视的蓝牙音频播放方法对应一致，具体细节详见对方法的描述，在此不再赘述。
根据本发明实施例的上述技术方案使得能够在智能电视系统中应用蓝牙音频传输。通过蓝牙处理系统控制电视的各个信号输入通道的切换，实时监控当前信号输入通道输出的音频信息和图像信息，将音频信息基于蓝牙协议转换成蓝牙信号并输出至蓝牙设备，同时将图像信息进行处理并输出至显示屏，或者直接输出至显示屏。根据本发明实施例的上述技术方案使得能够无线传输智能电视的音频信号，并且能够在家庭环境内使用家庭影院蓝牙音箱。当然，本发明提出的上述方案不仅仅适用于智能电 视系统，还可以应用到其他类似的显示系统。可以将根据本发明实施例的技术方案应用于具有多种不同信号通道的其他显示系统，通过利用显示系统中支持蓝牙传输的操作系统，可以实现显示系统中所有信号通道下的信号的蓝牙传输。
以上所述的具体实施例，对本发明的目的、技术方案和有益效果进行了进一步详细说明。应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明。凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种显示系统的蓝牙音频播放方法，包括：
    接收用户对于信号输入通道的选择信息，并根据所述选择信息将图像处理系统切换至相应信号输入通道；
    捕获所述相应信号输入通道输出的音频信息和图像信息；
    将所述图像信息输出至显示屏，以及将所述音频信息转换成蓝牙信号并输出所述蓝牙信号。
  2. 如权利要求1所述的蓝牙音频播放方法，还包括：在接收用户对于信号输入通道的选择信息之前，
    检测蓝牙连接状态，并匹配蓝牙音频播放设备；
    将所述显示系统内置的音频播放接口设置为静音状态。
  3. 一种显示系统的蓝牙音频播放装置，包括：
    切换模块，配置为接收用户对于信号输入通道的选择信息，并根据所述选择信息将图像处理系统切换至相应信号输入通道；
    捕获模块，配置为捕获所述相应信号输入通道输出的音频信息和图像信息；
    输出模块，配置为将所述图像信息输出至显示屏，以及将所述音频信息转换成蓝牙信号并输出所述蓝牙信号。
  4. 如权利要求3所述的装置，还包括：
    检测模块，用于检测蓝牙连接状态，并匹配蓝牙音频播放设备；
    静音模块，用于将所述显示系统内置的音频播放接口设置为静音状态。
  5. 一种显示系统，包括：
    图像处理系统，包括多个信号输入通道，所述多个信号输入通道分别配置为处理来自相应接口的输入信息，并输出音频信息和图像信息；
    显示屏，配置为根据接收到的图像信息来输出图像；
    蓝牙处理系统，配置为将图像处理系统切换至所述多个信号输入通道之一，捕获当前切换至的信号输入通道输出的音频信息和图像信息，将所述图像信息输出至显示屏，以及将所述音频信息转换成蓝牙信号并输出所述蓝牙信号。
  6. 如权利要求5所述的显示系统，其中，所述多个信号输入通道分别包括输入接口、处理单元和输出接口；其中，所述处理单元包括音视频解码器。
  7. 如权利要求5所述的显示系统，其中，所述蓝牙处理系统包括：
    处理器，配置为将图像处理系统切换至所述多个信号输入通道之一，捕获从当前切换至的信号输入通道输出的音频信息和图像信息，将所述图像信息输出至显示屏，以及将所述音频信息输出至蓝牙处理芯片；
    蓝牙处理芯片，配置为将所述音频信息转换成蓝牙信号并输出所述蓝牙信号。
  8. 如权利要求7所述的显示系统，其中，所述处理器包括单核或多核处理器，其上运行有操作系统。
  9. 如权利要求5所述的显示系统，还包括：
    蓝牙音频播放设备，配置为接收所述蓝牙信号，并根据所述蓝牙信号播放声音信号。
  10. 如权利要求5所述的显示系统，其中，所述蓝牙处理系统将所述图像信息直接输出至显示屏，或者对所述图像信息进行处理后输出至显示屏。
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