WO2008003238A1

WO2008003238A1 - Network tv system, tv set, method for controlling tv, audio playing system and method for controlling audio playing

Info

Publication number: WO2008003238A1
Application number: PCT/CN2007/002004
Authority: WO
Inventors: Zhangzhe Liu; Congxing Ouyang; Han Li; Guanghai Zhang
Original assignee: China Mobile Communications Corporation
Priority date: 2006-06-28
Filing date: 2007-06-27
Publication date: 2008-01-10

Abstract

A network TV system comprises: a TV program providing apparatus for providing digital or analog TV program streams; a network TV access device connected to the TV program providing apparatus, and used for receiving the TV program streams from the TV program providing device and processing the TV program streams; an interconnection communication processing device connected to the network TV access device and used for translating the acquired digital multimedia TV program streams into the power line carrier signal and outputting it. In addition, a TV set device, a TV control method, an audio playing system, an audio playing control method, anda method for implementing remote control of an audio playing device, are provided.

Description

Network television system, television device, and television control method

And audio playback system and audio playback control method

The invention relates to a network television system, a television device, a control method of a television, an audio playing system and an audio playing control method, in particular, only one power line is needed without a signal line, and the controller can also be used through a mobile communication network. A network television system for realizing remote control, a television program stream capable of selecting a plurality of television program providing devices, and a television control method for initiating a television control signal by using a controller through a mobile communication network, and a power line only requires no other signal lines A television device connected to a television access point, an audio playback system and an audio playback method controllable by the mobile terminal, and an audio playback device and an audio playback control device involved in the audio playback system and the audio playback method. BACKGROUND OF THE INVENTION Existing television systems include: cable television systems, digital television systems, and IP network television systems. Cable TV systems have been widely used in China to transmit analog TV signals of all channels to users through cable television networks. In the existing cable television system, since the analog signal is provided to the user's television device, the user's access to the television audio and video quality is not clear enough. In order to improve the quality of television audio and video, a digital television system has been proposed, which involves each user having to load a set top box. In the existing IP network television system, a function card is inserted into the television device on the user side to realize viewing of the IP TV. The above various television systems have their own problems. For example, the quality of the picture quality provided by the cable television system is not good enough and the power line needs to be connected. At the same time, a signal line such as a coaxial cable or an Ethernet 5 is required to be used with the television signal access point. Class line connection; digital TV system requires user home The set-top box is installed, and various signal lines are also involved; and the IP network television system usually requires the user to insert a function card into the television set. Furthermore, the television programs of these television systems cannot be connected to the home through an access device at the same time, so that the user can obtain programs provided by different television systems, that is, different television program providing devices.

Moreover, the existing television system and the controller mobile communication device such as a mobile phone, a PDA, etc. have the following disadvantages: In these television systems, the mobile communication device cannot perform a control operation on the selected television device; The television device selects to play the program content; it is not possible to customize a network playlist or network video recorder that can be played in this mobile communication device.

In these conventional television systems, the user's control of the television set, such as television program selection, volume adjustment, color/contrast/brightness/timbral, is performed by the remote control. The remote control sends a TV control signal to the TV set to watch a TV program provided by a certain TV system or to control the color/contrast/brightness/tone of the TV. In this conventional television control method, the user cannot select a plurality of television systems through the remote controller, that is, the television device can only receive a television program provided by a television system, and the television control signal needs to pass through the power line. The external signal line is transmitted; and the conventional television control method cannot perform the control operation on the selected television device through the mobile communication device such as a mobile phone; the program content cannot be selected for the designated television device; the user cannot communicate through the mobile communication The device customizes a network playlist or network video recorder that can be played on this television system.

The existing TV set has two external connection modes: The first type needs to be connected to the power line, and the signal line such as a coaxial cable or an Ethernet Category 5 line is required to be connected with the TV signal access point. The second type requires a power cord to be connected, and a wireless communication interface (such as WLAN) is configured to achieve an information connection with the television signal access point.

For existing television sets, if the television set is connected to a television signal access point such as a set top box,

There is a certain distance between players such as DVD/VCD. For example, if they are not in the same room, it is not convenient to deploy a dedicated signal cable such as a coaxial cable or a Category 5 cable, so it is not convenient for the user to set up the television device. For wireless communication interfaces, such as WLAN interfaces, there are wireless interference problems with other nearby wireless communication devices. It has a great influence on the transmission quality.

There are three connection methods between the existing speaker and the host device that controls the speaker: The first type needs to be connected to the power line, and the dedicated signal line (such as audio cable) is connected at the same time; the second type needs to be connected to the power line, and needs to be configured with dedicated The wireless interface (such as WLAN, Bluetooth); the third need to connect a dedicated signal cable with power supply (such as USB cable). The user can perform program selection and program play control operations on the host that controls the speaker unit.

For the existing speaker device, if there is a certain distance between the speaker device and the host that controls the speaker device, such as not in the same room, it is not convenient to deploy a dedicated signal cable (audio cable or USB interface), so it is not convenient for the user to set Audio playback device. For the WLAN interface, there is a wireless interference problem with other nearby WLAN devices. For the Bluetooth interface, it can only be transmitted in a short distance and in a good wireless environment. If the speaker is not in the same room as the main unit of the control speaker, and the distance is more than 10 meters, the transmission rate will be greatly affected.

Nowadays, mobile terminals have been widely used, but there is still no system and method for controlling audio through the mobile terminal. The method performs remote control operation on the speaker through the mobile terminal; the program content cannot be selected for the specified speaker device through the mobile terminal. It is also not possible to customize a network playlist (or network virtual CD) that can be played on the sound system through the mobile terminal. Summary of the invention

The object of the present invention is to provide a network television system, which is composed of a controller, a networked communication processing device and a television device, and realizes various television controls, and solves the problem that multiple television systems in the prior art cannot be simultaneously provided to users, and mobile The problem that the communication terminal cannot operate the television device through the network.

It is still another object of the present invention to provide a television control method capable of receiving a television program stream provided by a plurality of network television providing devices and capable of controlling the television device through the mobile communication network.

A further object of the present invention is to solve the problem that a television device in the prior art must pass a signal line or a letter. The problem of signal transmission between the number interface and the television access point provides a television set, which is composed of a well-known television set and a network television adapting module, and only needs to be connected to the power line without connecting an additional signal line.

A further object of the present invention is to provide an audio playback device, an audio playback control device, an audio playback system, and an audio playback control method, which can control an audio playback device and transmit an audio signal through a network, thereby preventing defects in the prior art. The remote control of the audio playback device can be realized; only the power cable can be used for communication between the audio playback device and the audio playback control device, and the user can conveniently set the audio playback device; the audio playback device can be controlled by the mobile terminal to play the network download or control The local audio data of the device; the playlist can be remotely set by the mobile terminal, and the audio playback device is controlled to play the content of the playlist.

To achieve the above object, the present invention provides a network television system, including:

a television program providing device for providing a digital or analog television program stream;

a network television access device, coupled to the television program providing device, for receiving a television program stream provided by the television program providing device, and processing the television program stream;

The networked communication processing device is coupled to the network television access device for outputting the digital multimedia television program stream obtained after the processing as a power line carrier signal.

To achieve the above object, the present invention provides a television control method, the method comprising: Step 1: The controller sends a television control signal to the network television access device through the wireless interface; Step 2: Network television in the network television access device The access device processes according to the received television control signal, and outputs the data to the networked communication processing device through the data line;

Step 3: The networked communication processing device performs signal processing on the signal input by the network television access device, and outputs the signal to the network television adapter through the power supply line;

Step 4: The network TV adapter processes the received signal again and outputs it to the known TV set.

When the television control signal is a television control signal, the step of processing according to the received television control signal in step 1 is specifically: The network television control selection module transmits the television control signal directly to the networked communication processing device.

The step of re-processing the received signal by the network television adapter in the step 4 is as follows:

Step 41: The first power line communication modulation and demodulation unit in the network television adaptation module demodulates the received television control signal, and converts the demodulated signal into an Ethernet signal transmission; Step 42: Ethernet The adapting unit demodulates the first power line communication modem unit to obtain an Ethernet signal for signal conversion.

When the television control signal is a program channel selection signal, the step of processing according to the received television control signal in step 2 is specifically:

Step 21: The network television control selection module in the network television access device sends a television control signal to the television program providing device;

Step 22: The television program providing device provides a television program stream according to the television control signal, and transmits the program stream to the network television control selection module;

Step 23: The network television control selection module sends the television program stream to the digital multimedia signal decompression processing unit for compression.

Step 41: The first power line communication modem unit in the network television adapter demodulates the received multimedia compression information sent by the network communication processing device, and converts the demodulated signal into an Ethernet signal transmission;

Step 42: The Ethernet adaptation unit converts the signal of the Ethernet signal;

Step 43: The digital multimedia signal decompression processing unit decompresses the digital multimedia compressed signal obtained by the conversion;

Step 44: The television signal processing unit converts the obtained digital multimedia signal into a normal television signal. In order to achieve the above object, the present invention provides a television set device, comprising the network television adapting module, wherein the network television adapting module is configured to receive a power line carrier signal through the power supply line, and the power line carrier signal Performing filtering, demodulation, signal conversion and decompression processing, extracting power supply to a known television set; obtaining a television signal and outputting it to an electrical signal interface end of a known television; meanwhile, obtaining a control signal of the television and outputting control to a known television set Signal receiving end.

In order to achieve the above object, the present invention provides an audio playback device, including a speaker and a speaker adapter module connected to the speaker, the speaker adapter module for demodulating a power line communication signal transmitted by the power line to obtain a control signal and/or Or an audio signal and output to the speaker.

The speaker adaptation module may include: an audio signal processing module, coupled to the speaker, configured to convert a digital audio signal into an analog audio signal and output to the speaker; an Ethernet adapter module, and the audio signal processing a module connection, configured to convert the received Ethernet signal into a digital audio signal and a control signal, output the digital audio signal to the audio signal processing module, and output the control signal to the speaker; the power line communication modem module, and the The Ethernet adapter module is configured to modulate the received Ethernet signal into a power line communication signal for transmission through the power line, and demodulate the received power line communication signal into an Ethernet signal to output to the Ethernet adapter module.

The power line communication modem module can be connected to the speaker through a power line, and the power signal extracted from the power line communication signal is output to the speaker device, and the power signal is used as a power supply for the speaker.

The speaker adapting module and the speaker are provided with a USB interface, and the adapting module and the speaker are connected through the USB interface; the speaker adapting module with the USB interface may include: a USB bus signal Ethernet adapting module, and the speaker is connected For converting the Ethernet signal and the USB bus signal, the USB bus signal includes a digital audio signal and a control signal; the power line communication modem module is connected to the USB bus signal Ethernet adapter module for receiving The incoming Ethernet signal is modulated by the power line communication signal transmitted over the power line, and the received power line communication signal is demodulated into an Ethernet signal for output to the USB bus signal Ethernet adaptation module. The USB interface is provided The speaker adapting module may further include: a USB power adapting module, connected to the power line communication modem module, and converting the power signal extracted from the power line communication signal by the power line communication modem module into a USB power signal; The USB bus adapter module is connected to the USB power adapter module and the USB bus signal Ethernet adapter module, and is connected to the speaker through the USB interface, and is used for integrating the USB bus signal and the USB power signal, and integrating the The signal is transmitted to the speaker via the USB interface.

In order to achieve the above object, the present invention also provides an audio playback control apparatus, the apparatus comprising: a control processing module, configured to receive playback control information and a digital audio signal, generate a control signal according to the playback control information, and control the audio signal and control Signal output; an Ethernet signal processing module, coupled to the control processing module, for converting the received digital audio signal and control signal into an Ethernet signal; a power line communication modem module, and the Ethernet adapter module The connection is configured to modulate the received Ethernet signal into a power line communication signal to be transmitted through the power line, and demodulate the received power line communication signal into an Ethernet signal to output to the Ethernet adapter module.

The device may further include: a broadcast signal receiving module, configured to receive a wireless broadcast analog audio signal; and an audio signal processing module coupled to the broadcast signal receiving module and the Ethernet signal processing module, configured to convert the analog audio signal into The digital audio signal is output to the Ethernet Adaptation Module. The apparatus can also include: an external communication module coupled to the control processing module for communication of the audio playback control device with a network. The apparatus can also include a local memory and/or an optical drive coupled to the control processing module for storing audio data for reading audio data in the optical disc and transmitting to the control processing module.

In order to achieve the above object, the present invention further provides an audio playback system, including: an audio playback device, including a speaker and a speaker adapter module connected to the speaker, the speaker adapter module for solving a power line communication signal transmitted by the power line Adjusting, obtaining a control signal and/or an audio signal, and outputting to the speaker; an audio playback control device, communicating with the audio playback device via a power line, for transmitting the received audio signal to the audio playback device through the power line, according to Connect The received playback control information generates a control signal and is sent to the audio playback device through the power line; the application server is connected to the audio playback control device via a communication network for providing audio data and/or playback control information; the mobile terminal, and the The application server is connected through a communication network and is configured to send an audio playback control request to the application server.

In order to achieve the above object, the present invention further provides an audio playback control method, comprising the following steps:

Step A: The mobile terminal sends an audio play request message to the application server, where the request information carries at least the identifier information of the audio playback device and the identifier information of the audio data requested to be played;

Step Β, the application server generates the play control information according to the audio play request information, and sends the play control information to the audio play control device, where the play control information carries the identification information of the audio data;

Step C: The audio playback control device sends a control signal and a digital audio signal to the audio playback device according to the playback control information;

Step D: The audio playback device plays the digital audio signal according to the control signal.

The sending the control signal and the digital audio signal to the audio playback device according to the playback control information may specifically include:

Step Cl, receiving playback control information sent by the application server;

Step C2: generate a control signal according to the play control information, and generate a digital audio signal according to the identification information of the audio data;

Step C3: Convert the control signal and the digital audio signal into an Ethernet signal. Step C4: Modulate the Ethernet signal into a power line communication signal and send the signal to the audio playback device.

When the identifier information of the audio data indicates that the audio to be played is an audio data file stored by the application server, and carries the address information or the file name of the audio data file, download the corresponding information from the application server according to the address information or the file name of the audio file. Audio data file, audio The data file is converted to a corresponding digital audio signal. When the identification information of the audio data indicates that the audio to be played is a broadcast signal and carries the broadcast channel information, the analog audio signal of the corresponding channel is received, and the analog audio signal is converted into a digital audio signal. When the identification information of the audio data indicates that the audio to be played is an audio data file local to the audio playback control device, and carries the address information or file name of the audio data file, the audio information is played according to the address information or the file name of the audio file. The control device locally looks up the corresponding audio file and converts the audio data file into a corresponding digital audio signal.

The mobile terminal can communicate with the application server by means of a voice call, a video call, a WAP or a short message.

The playing the digital audio signal according to the control signal in the step D may specifically include: Step D1: receiving a power line communication signal;

Step D2: Demodulating the power line communication signal to obtain an Ethernet signal;

Step D3: extracting a control signal and a digital audio signal from the Ethernet signal; Step D4, playing the digital audio signal according to the control signal.

The step D4 may be specifically: converting the digital audio signal into an analog audio signal, and playing the analog audio signal according to the control signal.

The request information in the step A may further carry the identification information of the mobile terminal, and may further include: determining, according to the identification information of the mobile terminal, whether the mobile terminal has the The control authority of the audio playback device is, step B is performed; otherwise, the operation is ended.

The audio playback control method of the present invention may further include: Step E: controlling, by the mobile terminal, the start, end, fast forward or backward of playing the audio by the audio playback device. Specifically, the mobile terminal sends a control command to the application server by initiating an unstructured supplementary data service connection or by using a short message or through an IP multimedia subsystem, and the application server converts the control command into a corresponding play control information and sends the control command to the audio playback control device. The audio playback control device plays the audio according to the playback control information; or specifically, the mobile terminal sends a start, a stop, a fast forward or a backward control command to the sound The frequency playback control device, the audio playback control device plays the audio according to the control command.

The method may further include: setting, by the mobile terminal, a playlist on the application server, the application server sending the playlist to the audio playback control device, and the audio playback control device downloads the digital audio file in the playlist from the application server and converts the corresponding The digital audio signal controls the audio playback device to play audio according to the playlist.

It can be seen from the above technical solutions that the present invention has the following advantages: With the network television system proposed by the present invention, a user can load a network television access device and a networked communication processing device; and, the user can control the television through the controller. The device performs control operations, such as selecting a television device, controlling the playback operation of a given television device: program selection, adjusting the volume, adjusting the color/contrast/brightness/timbral, and the like. For IPTV programs that are forwarded from the network on an on-demand basis, or digitized multimedia materials that are forwarded to or read from the optical drive by the networked communication processing device, the following control functions are also available: Start Play/Pause/Stop/Playback/Fast Forward. With the network television system proposed by the present invention, the user can select the content of the program played on the designated television device through the controller. With the network television system proposed by the present invention, the user can customize his own network playlist (or network television recorder) through the controller. The video media content of the network playlist can be downloaded from the IP network to the home gateway and stored as digitized audio material. It can also be an analog TV program or a digital TV program broadcast on a broadcast network recorded during the scheduled time period. Through the controller, the user can select the specified TV device to play the content of the network playlist and play control operations on the playback content.

It can be seen from the above technical solutions that the present invention has the following advantages: The complicated signal line of the television proposed by the present invention only needs a power line; the user can perform a control operation on the television device through the mobile communication device, such as selecting a certain television device, Controls the playback operation of a given TV set: program channel selection, volume adjustment, color/contrast/brightness/timbral adjustment, etc. For IPTV programs that are forwarded from the network via a networked communication module on an on-demand basis, or a networked communication module for local storage or from an optical drive The digitized multimedia material read in has the following control functions: Start play/pause/stop/playback/fast forward. With the network television system proposed by the present invention, the user can select the content of the program played on the designated television device through the mobile terminal. With the television control method proposed by the present invention, the user can customize his own network playlist (or network television recorder) through the mobile communication device. Through the mobile communication device, the user can select a specified television device to play the content of the network playlist, and play a control operation for the playback content.

It can be seen from the above technical solutions that the present invention has the following advantages: The television device and the television signal access point proposed by the present invention only need to be connected with a power line, and the television signal can be passed without connecting the signal line separately. The power cord is plugged into an existing television set, eliminating the need for complex signal line connections and interference problems in the prior art.

It can be seen from the above technical solutions that the present invention can control the audio playback device through the network and transmit the audio signal, thereby realizing remote control of the audio playback device; only the power cable can be used for communication between the audio playback device and the audio playback control device. The user can conveniently set the audio playback device; the audio terminal can be controlled to play the network to download or control the local audio data of the device through the mobile terminal; the playlist can be remotely set by the mobile terminal, and the audio playback device can be controlled to play the content of the playlist.

The present invention will be further described in detail below by way of specific embodiments and drawings. DRAWINGS

Figure 1 is a structural view of a television set of the present invention;

1 is a structural diagram of a network television adapter of a television set of the present invention;

3 is a schematic structural diagram of a network television system according to the present invention;

4 is another schematic structural diagram of a network television system according to the present invention;

5 is a structural diagram of a network television access device of a network television system according to the present invention;

6 is a structural diagram of a network television control selection unit in a network television access device of a network television system according to the present invention; 7 is another structural diagram of a network television access device of a network television system according to the present invention; FIG. 8 is another structural diagram of a network television control selection unit in a network television access device of the network television system of the present invention;

9 is a schematic structural diagram of a network television access device in a network television system; FIG. 10 is a schematic structural diagram of a network communication processing device in a network television system according to the present invention; FIG. 11 is a flowchart of Embodiment 1 of a television control method according to the present invention; ;

12 is a flowchart of Embodiment 2 of a television control method according to the present invention;

FIG. 13 is a flowchart of Embodiment 3 of a television control method according to the present invention;

14 is a schematic structural diagram of an audio playback system according to the present invention;

FIG. 15 is a flowchart of an audio playback control method according to the present invention;

16 is a schematic structural diagram of a specific embodiment of an audio playback device according to the present invention; FIG. 17 is a flowchart of a method for playing a digital audio signal according to a control signal according to the audio playback control method of the present invention;

FIG. 18 is a schematic structural diagram of another embodiment of an audio playback device according to the present invention; FIG. 19 is a schematic structural diagram of another embodiment of an audio playback device according to the present invention; 21 is a flow chart of a signal processing method of an audio playback device according to the present invention;

FIG. 22 is a schematic structural diagram of another embodiment of an audio playback control apparatus according to the present invention. detailed description

The invention solves the problem that each television system in the prior art operates separately. When the user selects the television system, the plurality of television systems cannot be selected at the same time, and the connection lines required by the traditional television system need other complicated signal lines to be connected in addition to the signal lines. The present invention provides a network television system which basically consists of a television program providing device, a network television access device, and a networked communication processing device controller. Of course, in this network television system, a television set is indispensable, and a controller such as a wireless remote controller is also required. In this network television system, the controller can It is a wireless remote controller having a mobile terminal function such as a mobile phone or a mobile terminal having a wireless remote control function. At the same time, after the above controller is provided, the user can remotely control the television device through the mobile communication network by using the mobile terminal function in the controller, realize various TV control such as program selection, adjust volume, adjust color/contrast /Brightness/Voice; and start play/pause/stop/playback/fast forward for IPTV programs, local storage or digital multimedia data read from the optical drive.

The invention provides a network television system, which mainly realizes smart home appliances in a community home after realizing an intelligent community in the future. Television is essential for everyday users. Therefore, network TV systems are critical to the user. The network television system proposed by the present invention is different from the existing television system, such as: a cable television system, or a digital television system carried on a network such as a cable television network or the Internet, a streaming media network television system, and the network television system. It can provide TV programs on all traditional TV systems to users, users can choose through the controller, can watch analog TV or digital TV of traditional broadcast TV system; can also watch streaming TV programs, and can also be on-demand Watch it. Of course, you can also watch some video from the optical drive.

The invention solves the problems that each television system in the prior art operates separately, and the user often cannot select multiple television systems at the same time when selecting the television system, and the connection lines required by the traditional television system require other complicated signal lines in addition to the signal line. The problem of connection is made; at the same time, the controller can perform various control on the television device through the mobile communication network.

The present invention solves the limitations of the control of television devices in the prior art, and the lack of flexibility in the use of television devices. In addition to known televisions, a new network television adapting module has been added to the television device.

FIG. 1 is a structural diagram of Embodiment 1 of a television apparatus according to the present invention. The television apparatus 1 includes: a known television set 11 connected to a network television adapting module 12 for passing a power supply line. Receiving a power line carrier signal, filtering, demodulating, converting, and decompressing the power line carrier signal, extracting a power supply to a known television set; obtaining a television signal, outputting to an electrical signal interface end of a known television; and simultaneously obtaining television control Signal, output to known electric The control signal receiving end of the video camera.

For example, when the user sends a television control signal such as volume, color, contrast, and brightness, the television control signals are remotely controlled to be input from the power line into the television set. At this time, the network television adapting module 12 pairs the power line. After the carrier signal is processed, the television control signal is extracted and output to a control circuit such as a volume, color or contrast of a known television set, and is controlled by these control circuits of a known television set.

FIG. 2 is a structural diagram of a network television adapting module of the television apparatus of the present invention. The network television adapting module 12 includes:

a PLC filter 124, configured to filter a power line carrier signal from a power supply line and provide power to a known television set;

The first power line communication modulation and demodulation unit 120 is connected to the PLC filter for demodulating the power line carrier signal, and converting the demodulated signal into an Ethernet signal transmission;

The Ethernet adapter unit 121 is connected to the power line communication modem unit 120 for converting the received Ethernet signal into a digital multimedia compressed signal, and/or a television control signal, and outputting the television control signal to the well-known a control signal receiving end of the television;

The digital multimedia signal decompression processing unit 122 is connected to the Ethernet adaptation unit 121, and configured to decompress the received digital multimedia compression signal to obtain a digital multimedia signal.

The television signal processing unit 123 is connected to the digital multimedia signal decompression processing unit 122 for converting the digital multimedia signal into a television signal and outputting it to the known television electrical signal interface.

The television device shown above solves the problem that there must be a signal line connection between the existing television device and the television signal access point. In the television device, the power supply line, the television signal access point and the present The television device of the invention only needs to pass through the power line, that is, the television signal can be connected to the existing television device through the power line.

As shown in FIG. 3, an embodiment of a network television system according to the present invention includes: a television program providing device 31 for providing a digital or analog television program stream; a network television access device 32, and the television program providing The device 31 is connected for receiving the provided by the television program providing device The television program stream, and processing the television program stream; the network communication processing device 33 is connected to the network television access device 32 for outputting the processed digital multimedia television program stream as a power line carrier signal.

In the network television system, the television program providing device 31 may be a conventional broadcast television system device, or an IP network multimedia server, or may be a local storage or optical drive (VCD, SVCD, DVD, EVD). From the IP network side multimedia server users can subscribe to IPTV programs.

The user can install a network television access device composed of the network television access device 32 and the networked communication processing device 33 at home, and can be connected with a conventional broadcast television system, or a multimedia server on the IP network television system side or a local storage such as an optical drive ( VCD, SVCD, DVD, EVD) TV signal reception operation through the power line.

After the user connects the television signal to the network television access device through the network television system shown in FIG. 3, the user can watch through the television device shown in FIG. 1.

As shown in FIG. 4, in the above-mentioned network television system, the user can perform various controls on the television apparatus 1 through the controller 2, such as selecting a television program, adjusting the volume, adjusting the color/contrast/brightness/tone, and the like. Playback operations and functional operations such as start play/pause/stop/playback/fast forward of video content. Specifically, the controller 2 sends various control signals to the network television access device 32 through a wireless interface, such as a television program control signal or a television program channel, or a TV program channel selection signal, such as a television program channel selection signal, such as 1 is shown in Figure 4.

Users can customize their own network playlist (or network TV recorder) through controller 2. The video media content of the network playlist can be downloaded from the IP network to the home gateway and stored as digitized audio material. It can also be an analog TV program or a digital TV program broadcast on a broadcast network recorded during the scheduled time period. The user sends a customized network playlist in the controller 2 to the network television access device 32 to start playing and selecting the video and audio data that he wants to enjoy, and at the same time, can adjust the volume, adjust the color/contrast/brightness of the television device. Sounds and other operations. Of course, the following controls are also available for the playback content: Pause/Stop/Playback/Fast Forward.

The controller 1 can also adopt the voice telephone mode and the visual communication network through the mobile communication network as shown in FIG. In the frequency telephone mode, accessing the network side server through the Internet access method or by short message mode, where the network side server selects the multimedia server, the system cost can be saved, and the television control signal or the signal of the television program stream can be sent to the multimedia server. .

Through the system shown in FIG. 4, the user sets up the television device through the controller, in which there may be multiple television devices, and the user can select a certain television device and can control the playback of a certain television device. Operation: Program selection, adjust volume, adjust color ratio/brightness/tone. The networked communication processing device sends digital multimedia material stored locally or read from the optical drive, or an analog television program or digital television program broadcasted by the broadcast television network. It also has the following control functions: Start Play/Pause/Stop/Playback/Fast Forward. The user can select video and audio information provided by different television program providing devices, such as: traditional analog television or digital television, network video multimedia material (IPTV) forwarded by the multimedia server via the network television access device, and downloaded from the multimedia server to the television through the IP network. The video media content of the networked communication processing device of the access device or the video and audio information obtained from the optical drive.

FIG. 5 is a detailed structural diagram of a network television access device of the network television system of the present invention. The network television access device 32 includes:

a network television control selection unit 321 is connected to the television program providing device 31 for performing a television program stream search to the television program providing device 31 and feeding it to the networked communication processing device 33;

The digital multimedia signal compression processing unit 332 is connected to the network television control selection unit 321 and the networked communication processing device 33 for compressing the received digital multimedia information, and the processed signal conforms to the PLC television device media receiving format, and This is output to the networked communication processing device 33.

FIG. 6 is a detailed structural diagram of the network television control selection unit 321 in the network television access device of the network television system shown in FIG. 5, which includes:

The network television control unit 3211 is connected to the television program providing device 31 and the digital multimedia signal compression processing unit 322, for searching and acquiring corresponding from the television program providing device. Digital multimedia television program stream;

The network television channel selection unit 3212 is coupled to the television program providing device 31 and the digital multimedia signal compression processing unit 322 for searching and acquiring a corresponding analog or digital television program stream from the television program providing device.

The structure shown in FIG. 5 and FIG. 6 above can solve the transmission of the TV program stream; in the structure shown in FIG. 5 and FIG. 6, the signal sent by the controller is not received, and in order to better implement the present invention, not only the program is implemented. As shown in FIG. 7, the network television system of the present invention further includes a controller, and the controller sends out various television control signals. At this time, a detailed structure diagram of the network television access device, the network television connection The entry device 32 includes:

a network television control selection unit 321 connected to the television program providing device 31, the controller 2, and the networked communication processing device 33 for performing a television program stream search to the television program providing device and feeding it to the networked communication processing device and Receiving a television control signal sent by the controller; a digital multimedia signal compression processing unit 322, connected to the network television control selection unit 321 and the networked communication processing device 33, for compressing the received digital multimedia information And output.

FIG. 8 is a detailed structural diagram of the network television control selection unit 321 in the network television system of the network television system shown in FIG. 7, which includes:

The network television control unit 3211 is connected to the television program providing device 31, the networked communication processing device 33, the controller 2, and the digital multimedia signal compression processing unit 322, for searching and acquiring corresponding digital multimedia from the television program providing device. a television program stream and receiving a television control signal sent by the controller, and outputting to the networked communication processing device;

The network television channel selection unit 3212 is connected to the television program providing device 31 and the digital multimedia signal compression processing unit 322 for acquiring an analog or digital television program stream.

The network television control selection unit 321 implements different television program providing devices to provide video and audio information according to the television control message sent by the user, such as acquiring multimedia content in a network side multimedia server, a local storage device or an optical drive, or broadcasting television. Get analog TV information or Digital multimedia information. The television control signal initiated by the user via the controller 2 is directly transmitted to the networked communication processing device 33 via the network television control unit 3211, and the television device 1 is controlled by the networked communication processing device 33.

The network television system shown in Figs. 7 and 8 above has a controller, and a detailed connection diagram between the controller 2 and the network television access device 32. Here, a detailed structure diagram of the network television access device 3 when the controller 1 directly initiates a television control signal to the network access device through the wireless interface is described; when the controller transmits the mobile access network side server through the mobile communication network When the television control signal is used, the internal structure of the network television access device at this time is the same as that described above with reference to FIG. 7 and FIG. 8, except that the controller 2 is no longer directly connected to the network television access device 32, but is as shown in FIG. The access is shown via a mobile communication network.

FIG. 9 is another detailed structural diagram of the network television access device of the network television system shown in FIG. 6 and FIG. 8 , wherein a network television signal conversion unit 323 is further added to the network television access device, and the network television signal is added. The converting unit 323 converts the analog television signal searched from the broadcast television network into a digital multimedia signal, which is suitable for television device playback. Specifically, the network television access device further includes: a network television signal conversion unit 323, and is connected to the network television channel selection unit 3212 and the digital multimedia signal compression processing unit 322, and configured to convert the acquired corresponding analog television information into a digital The multimedia information is output to the digital multimedia signal compression processing unit 322.

FIG. 10 is a detailed structural diagram of a network communication processing device in a network television system, and the network communication processing device 33 includes:

The main processing unit 331 is connected to the network television access device 32 for receiving digital multimedia compression information and/or television control signals. The Ethernet signal processing unit 332 is connected to the main processing unit 331 for receiving. The obtained digital multimedia compression information and/or television control signal is converted into an Ethernet signal and output; the second power line communication modulation and demodulation unit 333 is connected to the Ethernet signal processing unit 332 and the television device 1 for Ethernet The control signal and/or digital multimedia compression information in the signal is modulated, and the modulated signal is loaded onto the carrier signal of the power supply line for transmission. In the network television system, the controller may be a mobile communication device having a wireless remote control function or a wireless remote control having a mobile communication device function. The mobile communication device, such as a mobile phone and a PDA, has the same function as the wireless remote controller and can control the television device.

FIG. 11 is a flowchart of Embodiment 1 of a television control method according to the present invention, including the following steps: Step 111: A controller sends a television control signal to a network television access device; the network television access device includes a network television. Access device and networked communication processing device;

Step 112: The network television processing device in the network television access device performs processing according to the received television control signal, and outputs the signal to the networked communication processing device;

Step 11: The networked communication processing device performs signal processing on the signal input by the network television processing device, and outputs the signal to the network television adapter.

Step 114: The network television adapter processes the received signal again and outputs it to the known television set.

A home equipped with the above-mentioned television device, networked communication device, and network television access device, the user can issue a television control signal through the controller, such as selecting a program for the television device, adjusting the volume, adjusting the color/contrast/brightness/tone And control operations such as stopping, pausing, fast forwarding, or rewinding the content being played. When the user sends out the TV control unit to adjust the volume, adjust the color, contrast, brightness, tone or fast forward, rewind, pause or stop the multimedia TV program stream, etc., as shown in Figure 12 The step of processing according to the received television control signal in step 112 is as follows: Step 1120: The network television control selection module directly sends the television control signal to the networked communication processing. Device. Step 11 3 is specifically: the network communication processing device performs signal conversion on the television control signal, first converts to an Ethernet signal, and then modulates into a power line carrier signal by a PLC modulation and demodulation unit in the networked communication processing device, and then outputs the signal to the power line carrier signal, and then outputs the signal to the power line carrier signal. The network television adapter; and the step of re-processing the received signal by the network television adapter in step 114 is specifically:

Step 1141: The first power line communication modulation and demodulation unit in the network television adaptation module demodulates the received TV line control signal of the power line carrier mode, and converts the demodulated signal Sending for Ethernet signals;

Step II ⁴² : The Ethernet adapter unit demodulates the first power line communication modem unit to obtain an Ethernet signal for signal conversion, and obtains a TV control signal.

That is, when the user sends a television control signal, the network television access device directly transmits the signal to the networked communication processing device; the networked communication processing device performs signal replacement on the television control signal, and is now converted into an Ethernet signal. And then modulated into a power line carrier signal by the PLC modem unit in the networked communication processing device, and then output to the network television adapter; the network television adapter performs the operations of steps 1141 and 1142 described above to modulate the television control signal into the power line carrier signal. Demodulation and signal processing are performed to finally obtain an ordinary television signal and output it to the television set.

When the user wants to perform the program channel selection operation, as shown in the flowchart of the third embodiment of the television control method of FIG. 13, step 131 is the same as step 111 above. In this embodiment, the television control signal is the program channel selection request television. The program provides a control signal for the device to deliver the TV program stream;

The steps in the step 132 are different from those described above, and are specifically:

Step 1321: The network television control selection module in the network television processing device sends a television control signal to the television program providing device.

Step 1322: The television program providing device provides a television program stream to the network television control selection module according to the television control signal;

Step 1323: The network television control selection module sends the television program stream to the digital multimedia signal decompression processing unit for compression; the signals processed by the digital multimedia signal decompression processing unit are all conformed to the media receiving format of the PLC television device. Digital multimedia compression signal; Step 133 is the same as described in step 113 above, that is, the networked communication processing device performs signal conversion on the television program stream, first converts to an Ethernet signal bearer, and then passes through a PLC modem unit in the networked communication processing device. The power line carrier signal is modulated and then output to the network television adapter; at this time, step 114 is specifically:

Step 1341: The first power line communication modem unit in the network television adapter, for receiving Receiving demodulation of the multimedia compressed information sent by the networked communication processing device, and converting the demodulated signal into an Ethernet signal transmission;

Step 1342: The Ethernet adapting unit converts the Ethernet signal to obtain a digital multimedia compressed signal conforming to the PLC television device;

Step 1343: The digital multimedia signal decompression processing unit decompresses the digital multimedia compression signal obtained by the conversion;

Step 1344: The television signal processing unit converts the obtained digital multimedia signal into a normal television signal.

When the user selects a program, the user can select a different channel to watch the program on different channels. The television program providing device may be a multimedia server on the network side; that is, in step 1321, the network television control selection module sends the program channel selection signal to the multimedia server through the IP network; in step 1322: the multimedia server selects according to the received program. The station signal, the TV program stream currently played on the network side is sent to the local memory in the network television access device through the IP network, and stored for a period of time, then passes through the above steps 133 and 1341-1344 or immediately passes the above steps 133 and steps. 1341-1344 converts the television program stream into a television signal and outputs it to the television device for playback. That is, users can watch online video multimedia materials (IPTV).

In addition, the TV program provides the optical drive (VCD, SVCD, DVD, EVD), and the digital video multimedia material read from the optical drive (VCD, SVCD, DVD, EVD) configured by the home gateway is sent to the home gateway host module. Designating a television device and a home network television access device, that is, digital video multimedia data stored in the networked communication processing device, such as the downloaded I PTV video multimedia data, that is, the network selection module sends the program channel selection signal to The network communication processing device, the network communication processing device selects, according to the program channel selection signal, a television program stream selected by the user from the optical disk drive provided by the network communication processing device, at this time, step 1322: network communication according to the television control signal The processing device reads the digitized video multimedia information from the optical drive to provide a network television control selection module. Then, the television program stream is converted into a television signal through the above step 133 and steps 1341-1344, and output to the television device for playing. That is, the user can watch the optical drive Digital video multimedia material stored on (VCD, SVCD, DVD, EVD).

Further, the television program providing device may be a broadcast television system server, that is, the user watches the analog or digital television program played on the conventional broadcast network through the home network television access device. That is, the network television control selection module sends a program channel selection signal for watching the television program of a certain channel of the broadcast network to the broadcast television system server. At this time, step 1322: the broadcast television system server passes the corresponding television program stream according to the television control signal. The broadcast television network is sent to the network television control selection module. The television program stream is then converted to a television signal by the above-mentioned step 1 33 and step 1 341-1 344, and output to the television device for playback. That is, the analog television program or the digital television program broadcasted by the broadcast television network is received by the home network television access device after receiving the broadcast television signal (analog or digital), and then transmitted to the designated television device.

The above-mentioned television control signal may be an instruction initiated by the user directly at the home to the network television access device; or when the user is outside the home, suddenly realize that the television device is in the playing state or the controller used by the user. Displaying status information of the television device, that is, the controller has status information capable of displaying the television device or other home appliances, and when the television device is found to be in a playing state, wants to turn off; or before going home, the television device is turned on in advance; Or when the child does not adjust the color, contrast, brightness or tone in the home, the user can control the TV externally through the controller with the function of the mobile communication device.

The user uses the short message method to send the TV control control signal, such as the adjustment contrast, that the user wants to send to the server on the network side through the mobile communication network, and the server on the network side sends the TV control signal to the network television processing device through the IP network. . Specifically, as shown in FIG. 12, after the foregoing step 114, the method further includes: Step 115: The controller sends a television control signal, such as adjusting a contrast, to the server on the network side through the mobile communication network;

Step 116a: The server at the network side sends the TV control signal adjustment contrast to the network television access device through the IP network.

Then, the network television access device transmits the television control signal sent by the above: contrast adjustment, and sends the television signal to the power through the above steps 1 120, step 113, and steps 1141 and 1142. Video device.

Or the network television access device transmits the television control signal of the program selected by the network television providing device, that is, the television control signal of the program selection, by step 115b: the controller sends a request to the network side server to play the broadcast network through the mobile communication network. The program channel selection signal of the television program; Step 116b: The server at the network side sends the program channel selection signal to the network television access device through the IP network. Then, the television program stream is transmitted to the television device for playback by the above-mentioned step 1321 - step 1323, step 133 and step 1341 - step 1344. Alternatively, the television program of the broadcast television network or the multimedia video material in the optical drive or the local storage may also be used to remotely control the playback of the above-mentioned multimedia material or television program through the above steps. The above program is stored in the local storage.

Through the above method, the user can remotely initiate the download of his own customized program to the local storage through the controller having the capability of the mobile communication device. That is, the user passes the controller, which is a controller that can log in to the mobile communication network, and can first customize its own network playlist (or network television recorder) through the controller. The video media content of the network playlist can be downloaded from the IP network to the home network television access device and stored as digitized audio material. It can also be an analog TV program or a digital TV program broadcast on a broadcast network recorded during the scheduled time period. Through the controller, the user can select a specified television device to play the content of the network playlist, and perform the above-mentioned playback control operations such as pause, rewind, and the like.

In the foregoing embodiment, the controller uses the short message access mode, the voice call mode, or the video phone mode to log in to the network mode or the IMS system initiates stop, fast play, and backward to the network side through the mobile communication network, and can also control the television device. Adjust the volume, adjust the color / contrast / brightness / tone and program channel selection.

When the controller initiates the television control message to the network side server through the IMS system, the controller specifically initiates the access to the IMS system through the mobile communication network, and the IMS system sends the obtained television control message to the server on the network side through the IP network. .

In the above embodiment, the controller has both the function of the wireless remote controller and the function of the mobile communication device. In the above embodiment, the networked communication device has a function of filtering, modulating, and converting the received signal, and has the capability of CPU processing.

The power supply line is one of the most widely distributed networks, and the Power Line Communication (PLC) technology is relatively mature. The present invention utilizes PLC technology to realize the communication connection between the audio playback device and the audio playback control device, thereby The playback control information and the audio data to be played need to be sent to the audio playback control device, and the control device can transmit the control signal and the audio signal through the power supply line by using the PLC technology, and only the power supply is required between the audio playback device and the audio playback control device. The line can be communicated, and the user can conveniently set up the audio playback device. However, the present invention is not limited to the use of PLC technology to realize communication between the audio playback device and the audio playback control device, and other transmission technologies may be employed.

FIG. 14 is a schematic structural diagram of an audio playback system according to the present invention, including: an audio playback device, an audio playback control device 2, an application server 3', and a mobile terminal 4. The audio playback device includes a speaker 12' and a speaker adapting module 11 connected to the speaker 12, and the speaker adapting module 1 Γ is used for demodulating a power line communication signal transmitted by the power line to obtain a control signal and/or an audio signal. And to the speaker 12, output. The audio playback device Γ has unique identification information, so that the audio playback control device 2, the level application server 3, can uniquely determine the audio playback device 通过 by the identification information. The audio playback control device 2' communicates with the speaker adaptation module 11 of the audio playback device 电力 through the power line, and is configured to send the received audio signal to the speaker adaptation module 11 through the PLC mode, according to the received playback control information. A control signal is generated and transmitted to the speaker adaptation module 11 through the power line. The application server 3' is connected to the audio playback control device 12 via a communication network for providing audio data and/or playback control information; the mobile terminal 4' is connected to the application server through the mobile network for transmitting audio to the application server. Control request.

As shown in FIG. 15, the flowchart of the audio playback control method of the present invention includes the following steps: Step A: The mobile terminal sends an audio play request message to the application server, where the request information carries at least the identifier information of the audio playback device, and The identification information of the audio data that is requested to be played; Step B: The application server generates the play control information according to the audio play request information, and sends the play control information to the audio play control device, where the play control information carries the identification information of the audio data; Step C: The audio playback control device sends a control signal and a digital audio signal to the audio playback device according to the playback control information, and the signal is transmitted in a PLC carrier manner;

Step D: The audio playback device demodulates the received PLC carrier signal, and plays the digital audio signal according to the control signal.

Through the above technical solution, the audio playback device can be controlled and the audio signal can be transmitted through the power supply network, so that the remote control of the audio playback device can be realized.

FIG. 16 is a schematic structural diagram of a specific embodiment of an audio playback device of the present invention. Audio box 12, only analog signals can be processed. The speaker adaptation module 11, including a PLC modem module 111', an Ethernet adapter module 112, and an audio signal processing module 113, are provided. The PLC modem module 111' is connected to the audio playback control device 2' via a power line for demodulating the received PLC signal into an Ethernet signal to the Ethernet adapter module 112, output, and the Ethernet to be received. The signal modulation is sent to the audio playback control device V via the power line. The Ethernet adapter module 112, is connected to the PLC modem module 111, and configured to convert the received Ethernet signal into a digital audio signal and a control signal, and output the digital audio signal to the audio signal processing module and The control signal is output to the speaker; the audio signal processing module 11 Γ is connected to the speaker 12' for converting the digital audio signal into an analog audio signal and outputting to the speaker 12'. In addition, the PLC modulation and demodulation module 111 can extract the power signal from the PLC signal, and output the signal to the speaker 12 through the power line, and use it as the speaker 12 for power supply.

When the audio playback device adopts the structure of the above embodiment, the playback of the digital audio signal according to the control signal in step D may include the following steps as shown in FIG. 17:

Step Dl, the PLC modulation and demodulation module receives the PLC signal;

Step D2: The PLC modem module demodulates the PLC signal, and obtains an Ethernet signal to be sent to the Ethernet adapter module;

Step D3, the Ethernet adapter module extracts the control signal and the digital audio signal from the Ethernet signal, and sends the control signal to the speaker; if the speaker supports the digital signal, the digital signal signal can be directly sent to the speaker to play; Only the analog signal is supported, then the digital audio signal is first converted into an analog signal, and then sent to the speaker to play; Step D4: The speaker plays the received digital audio signal or analog audio signal according to the control signal. In another embodiment of the audio playback device of the present invention, the speaker adapter module 11 is coupled to the speaker 12 using a USB interface. As shown in FIG. 18, the structure of the present embodiment is shown in FIG. 18. The speaker 12 is a digital speaker with a USB interface, so that the speaker adapting module 11 does not need to convert a digital signal to an analog signal, but needs to convert the Ethernet signal into USB signal. The PLC modem module 11 is connected to the audio playback control device 2' via a power line, demodulates the received PLC signal into an Ethernet signal to the Ethernet adapter module 112, outputs, and receives the Ethernet signal. The modulation is transmitted to the audio playback control device 2' via the power line. The USB bus signal Ethernet adapting module 114, is connected with the PLC modem module 111, and is used for mutual conversion of the Ethernet signal and the USB bus signal, and extracts the digital audio signal and the control signal from the received Ethernet signal. , and convert the digital audio signal control signal into a USB bus signal format, and output to the speaker 2.

In still another embodiment of the audio playback device of the present invention, the speaker is powered via the USB interface. As shown in FIG. 19, it is a schematic structural view of the present embodiment. After receiving the PLC signal, the PLC modem module 111, in addition to demodulating the signal into an Ethernet signal to the Ethernet adapter module 12, outputs the power signal as a carrier to the USB power adapter module 115. , the USB power adapter module 115 ' is connected to the PLC modem module 11 1, and converts the power signal into a USB power signal and outputs to the USB bus adapter module 116'; the USB bus adapter module 1 16 ' Connected to the USB power adapter module 115, and the USB bus signal Ethernet adapter module 114, and connected to the speaker 12' through the USB interface, integrate the USB bus signal and the USB power signal, and integrate the integrated signal through the USB The interface is transmitted to the speaker 12.

FIG. 20 is a schematic structural diagram of a specific embodiment of an audio playback control apparatus according to the present invention, including: a control processing module 23, configured to receive playback control information and a digital audio signal, generate a control signal according to the playback control information, and An audio signal and a control signal output; an external communication module 24' is connected to the control processing module 23 for communicating with the communication network to implement communication with the application server; the Ethernet signal processing module 22, and the control processing module 23, Connection, used to convert received digital audio signals and control signals into Ethernet signals; PLC modem module And an Ethernet adapter module 22, configured to modulate the received Ethernet signal into a PLC signal for transmission over the power line, and demodulate the received PLC signal into an Ethernet signal to the Ethernet adapter module 22 , output.

When the audio playback device adopts the structure of the above embodiment, the signal processing flow is as shown in FIG. 21, and includes:

Step Cl, the external communication module receives the play control information sent by the application server, and sends it to the control processing module;

Step C2: The control processing module generates a control signal according to the play control information, generates a digital audio signal according to the identification information of the audio data, and sends the control signal and the digital audio signal to the Ethernet signal processing module;

Step C3: The Ethernet signal processing module converts the control signal and the digital audio signal into an Ethernet signal and sends the signal to the PLC modem module.

Step C4: The PLC modem module modulates the Ethernet signal into a PLC signal and transmits it to the audio playback device through the power line.

The audio playback control device can also control the playback of the audio based on control signals from the remote control or directly from the mobile terminal rather than signals from the network. In this case, no external communication module is required. For example, the mobile terminal can communicate with the audio playback control device via a Bluetooth interface, an infrared interface, a USB interface, or a COM interface to transmit an audio playback signal to the audio playback control device.

In another embodiment of the audio playback control device of the present invention, the function of receiving a broadcast signal is added. As shown in FIG. 22, a schematic structural diagram of the present embodiment is shown. On the basis of the previous embodiment, a broadcast signal receiving module 25 and an audio signal processing module 26 are added. The broadcast signal receiving module 25' is configured to receive a wireless broadcast analog audio signal, and send the analog audio signal to the audio signal processing module 26, and the audio signal processing module 26 converts the analog audio signal into a digital audio signal and adapts to the Ethernet. Module 22 outputs.

The audio playback control device may further comprise a local memory and/or an optical drive connected to the control processing module, the audio memory for storing audio data, the optical drive for reading audio data in the optical disc and transmitting to the control processing module, the audio playback control The device can drive audio from local storage and/or optical drive The data is sent to the audio player for playback.

Depending on the audio that needs to be played, the audio control playback device will look for the corresponding audio source. When the identification information of the audio data indicates that the audio to be played is an audio data file stored by the application server and carries the address information or file name of the audio data file, the audio control playback device may apply from the application according to the address information or the file name of the audio file. The server downloads the corresponding audio data file, and converts the audio data file into a corresponding digital audio signal; when the identification information of the audio data indicates that the audio to be played is a broadcast signal and carries the broadcast channel information, the audio control playback device may be according to the broadcast The channel information receives the analog audio signal of the corresponding channel, and converts the analog audio signal into a digital audio signal; when the identification information of the audio data indicates that the audio to be played is an audio data file local to the audio playback control device, and carries the audio data file When the address information or the file name is used, the frequency playback control device searches the audio playback control device for the corresponding audio file according to the address information or the file name of the audio file, and converts the audio data file into a corresponding digital audio signal. number.

The mobile terminal can communicate with the application server via voice call, video call, WAP or SMS. The identifier information of the mobile terminal may be carried in the request information, and after receiving the audio play request information, the application server may determine, according to the identifier information of the mobile terminal, whether the mobile terminal has the control authority for the audio playback device, if the mobile terminal If there is a corresponding authority, the subsequent process is performed, and the playback control information is generated and sent to the audio playback control device; if the mobile terminal does not have the corresponding authority, the operation ends.

A control command can be sent to the application server through the mobile terminal to control the playback operation of the audio playback device, for example, start, stop, fast forward or backward. The mobile terminal sends a control command to the application server by using an Uns tructured Supplementary Service Data (USSD) connection or by using a short message or by an IP Multimedia Subsystem (IMS). The server converts the control command into corresponding playback control information and sends it to the audio playback control device, and the audio playback control device converts the playback control information into a corresponding control signal and sends it to the audio playback device, thereby implementing control of the audio playback device.

The communication interface between the mobile terminal and the audio playback control device can also be used, and the control command is directly sent to the audio playback control device by the mobile terminal, and the audio playback control device converts the control command into Corresponding control signals are sent to the audio playback device to effect control of the audio playback device. The user can set a playlist on the application server through the mobile terminal, and the application server sends the playlist to the audio play control device, and the audio play control device downloads the digital audio file in the playlist from the application server and converts it into a corresponding digital audio signal, and The digital audio signal is sent to the audio playback device for playback according to the playlist.

It should be noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and are not intended to be limiting, and the present invention will be described in detail with reference to the preferred embodiments. Modifications or equivalents are made without departing from the spirit and scope of the invention.

Claims

Rights request

A network television system, characterized in that it comprises:

2. The network television system according to claim 1, further comprising: a television device provided with a known television set and a network television adapter, wherein the network television adapter is connected to the networked communication processing device, the network The television adapter is configured to receive a power line carrier signal through a power supply line, filter, demodulate, convert, and decompress the power line carrier signal, extract a power supply to a known television set, obtain a television signal, and output the signal to a known television set; A television control signal is also obtained and output to a control signal receiving end of a known television set.

3. The network television system according to claim 2, wherein the network television adapter comprises: a PLC filter, configured to filter out the power line carrier signal from the power supply line, and provide power to the known television set;

a first power line communication modem unit connected to the PLC filter for demodulating the power line carrier signal and converting the demodulated signal into an Ethernet signal transmission;

An Ethernet adapter unit, coupled to the power line communication modem unit, for converting the received Ethernet signal into a digital multimedia compressed signal, and/or a television control signal, and outputting the television control signal to the television module;

The digital multimedia signal decompression processing unit is connected to the Ethernet adaptation unit, configured to decompress the received digital multimedia compression signal to obtain a digital multimedia signal;

The television signal processing unit is coupled to the digital multimedia signal decompression processing unit for converting the digital multimedia signal into a television signal and outputting to the television module.

4. The network television system according to claim 1, wherein the networked communication processing device package Includes:

a main processing unit, connected to the network television access device, for receiving digital multimedia compression information and/or television control signals;

An Ethernet signal processing unit, coupled to the main processing unit, for converting the received digital multimedia compression information and/or television control signal into an Ethernet signal and outputting;

a second power line communication modem unit connected to the Ethernet signal processing unit for modulating a control signal and/or digital multimedia compression information in the Ethernet signal, and loading the modulated signal to a power line carrier signal Transfer on.

The network television system according to claim 1 or 2, wherein the television program providing device is a multimedia server.

The network television system according to claim 5, further comprising: a controller connected to the multimedia server via a mobile communication network, configured to send a television control signal or obtain a television program to the multimedia server. The signal of the stream.

7. The network television system according to claim 6, wherein the network television access device comprises:

a network television control selection unit, coupled to the television program providing device, the controller, and the networked communication processing device, configured to perform a television program stream search to the television program providing device and send it to the networked communication processing device and receive the control TV control signal sent by the device;

The digital multimedia signal compression processing unit is connected to the network television control selection unit and the networked communication processing device, and configured to compress and output the received digital multimedia information.

8. The network television system according to claim 7, wherein the network television control selection unit comprises:

a network television control unit, coupled to the television program providing device, the networked communication processing device, the controller, and the digital multimedia signal compression processing unit, for searching and acquiring the corresponding digital multimedia television program stream and receiving from the television program providing device a television control signal sent by the controller, and output to the networked communication processing device; The network television channel selection unit is connected to the television program providing device and the digital multimedia signal compression processing unit for acquiring an analog or digital television program stream.

The network television system according to claim 1 or 2, wherein the television program providing device is a broadcast television network system.

The network television system according to claim 1 or 2, wherein the television program providing device is a local storage device.

The network television system according to claim 1 or 2, further comprising: a controller, connected to the network television access device, for transmitting a television control signal or acquiring the television program providing device The signal of the TV program stream.

The network television system according to claim 1 or 2, wherein the network television access device comprises:

a network television control selection unit, coupled to the television program providing device, for performing a television program stream search to the television program providing device and sending the same to the networked communication processing device;

The digital multimedia signal compression processing unit is connected to the network television control selection unit and the networked communication processing device for compressing and outputting the received digital multimedia information.

The network television system according to claim 12, wherein the network television control selection unit comprises:

a network television control unit, coupled to the television program providing device and the digital multimedia signal compression processing unit, for searching and acquiring a corresponding digital multimedia television program stream from the television program providing device;

The network television channel selection unit is coupled to the television program providing device and the digital multimedia signal compression processing unit for searching and acquiring a corresponding analog or digital television program stream from the television program providing device.

The network television system according to claim 8 or 13, wherein the network television access device further comprises:

a network television signal conversion unit, and the network television channel selection unit and the digital multimedia message The number compression processing unit is connected to convert the acquired analog television program stream into a digital multimedia television program stream, and output to the digital multimedia signal compression processing unit.

15. A television control method, comprising the steps of:

Step 1: The controller sends a TV control signal to the network television access device through the wireless interface; Step 2: The network television access device in the network television access device processes according to the received television control signal, and outputs the data through the data line Networked communication processing device;

The method according to claim 15, wherein when the television control signal is a television control signal, the step of processing according to the received television control signal in step 2 is specifically:

The network television control selection module analyzes the television control signal as a television control signal, and directly transmits the television control signal to the networked communication processing device.

The method according to claim 16, wherein the step of re-processing the received signal by the network television adapter in the step 4 is specifically:

Step 41: The first power line communication modulation and demodulation unit in the network television adaptation module demodulates the received television control signal, and converts the demodulated signal into an Ethernet signal transmission; Step 42: Ethernet The adapting unit demodulates the first power line communication modem unit to obtain an Ethernet signal for signal conversion, and obtains a television control signal.

The method according to claim 15, wherein when the television control signal is a program channel selection signal, the step of processing according to the received television control signal in step 2 is specifically:

Step 21: The network television control selection module in the network television access device sends a television control signal to the television program providing device. Step 22: The television program providing device provides a television program stream to the network television control selection module according to the television control signal;

The method according to claim 18, wherein the step of re-processing the received signal by the network television adapter in step 4 is specifically:

Step 42: The Ethernet adapter unit converts the signal of the Ethernet signal;

Step 44: The television signal processing unit converts the obtained digital multimedia signal into a normal television signal.

The method according to claim 18, wherein the step TV is provided by the local program of the networked communication processing device or the networked communication processing device. The control signal, the networked communication processing device reads the locally stored digital video multimedia information or reads the digital video multimedia information from the optical drive to provide a network television control selection module.

The method according to claim 18, wherein the step 21 is that the television program providing device is a multimedia server; and the step 22 is specifically: the multimedia server passes the corresponding television program stream through the IP according to the television control signal. The network is sent to the network television control selection module.

The method according to claim 18, wherein the step 21 is that the television program providing device is a broadcast television system server; and the step 22 is specifically: the broadcast television system server according to the television control signal, the corresponding television The program stream is sent to the network television control selection module through the broadcast television network.

The method according to claim 15, further comprising: Step 5: The controller sends a television control signal to the server on the network side through the mobile communication network;

Step 6: The server on the network side sends the TV control signal to the network TV access attack through the IP network.

The method according to claim 23, wherein the mobile communication network in the step 5 is specifically: by using a short message method, a voice telephone method, a video telephone method or a login network method of the mobile communication network or IMS system.

25. A television device, comprising a known television set, wherein the known television set is provided with a network television adaptation module, and the network television adaptation module is configured to receive a power line carrier signal through a power supply line, the power line carrier The signal is filtered, demodulated, converted, and decompressed, and the power supply is extracted to the known television set; the television signal is obtained and output to the electrical signal interface end of the known television; meanwhile, the television control signal is also obtained, and the signal is output to the known television. The control signal receiving end of the machine.

The television device according to claim 25, wherein the network television adaptation module comprises:

a PLC filter for filtering a power line carrier signal from a power supply line and providing power to a known television set;

An Ethernet adapter unit, coupled to the power line communication modem unit, for converting the received Ethernet signal into a digital multimedia compressed signal, and/or a television controller signal, and outputting the television control signal to a known television Control signal receiving end of the machine;

The television signal processing unit is coupled to the digital multimedia signal decompression processing unit for converting the digital multimedia signal into a television signal and outputting it to an electrical signal interface end of a known television set.

27. An audio playback device, comprising a speaker, wherein: the speaker and the speaker The adapter module is connected to demodulate the power line communication signal transmitted by the power line, obtain a control signal and/or an audio signal, and output to the speaker.

28. The device according to claim 27, wherein: the speaker adaptation module comprises:

An audio signal processing module, coupled to the speaker, for converting a digital audio signal into an analog audio signal and outputting to the speaker;

An Ethernet adapter module is connected to the audio signal processing module, configured to convert the received Ethernet signal into a digital audio signal and a control signal, output the digital audio signal to the audio signal processing module, and output the control signal to Speaker output

a power line communication modem module, coupled to the Ethernet adapter module, configured to modulate the received Ethernet signal into a power line communication signal for transmission through the power line, and demodulate the received power line communication signal into an Ethernet signal direction Ethernet adapter module output.

The device according to claim 28, wherein: the power line communication modem module is connected to the speaker through a power line, and outputs a power signal extracted from the power line communication signal to the speaker device, where the power signal is used as a device The power supply for the speaker.

30. The device according to claim 27, wherein: the speaker adapting module and the speaker are provided with a USB interface, and the adapting module and the speaker are connected through a USB interface.

31. The device of claim 30, wherein the speaker adapter module having a USB interface comprises:

USB bus signal Ethernet adapter module, connected to the speaker, for Ethernet signal and

Mutual conversion of USB bus signals, the USB bus signals including digital audio signals and control signals;

Γ

a power line communication modem module connected to the USB bus signal Ethernet adapter module for modulating the received Ethernet signal into a power line communication signal for transmission through the power line, and demodulating the received power line communication signal into an ether The network signal is output to the USB bus signal Ethernet adapter module.

32. The device according to claim 31, wherein: said USB interface is provided The speaker adapter module also includes:

a USB power adapter module, connected to the power line communication modem module, and converting a power signal extracted from the power line communication signal by the power line communication modem module into a USB power source signal;

The USB bus adapter module is connected to the USB power adapter module and the USB bus signal Ethernet adapter module, and is connected to the speaker through the USB interface, and is used for integrating the USB bus signal and the USB power signal, and integrating the The signal is transmitted to the speaker via the USB interface.

33. An audio playback control device, characterized in that the device comprises:

a control processing module, configured to receive the play control information and the digital audio signal, generate a control signal according to the play control information, and output the audio signal and the control signal;

An Ethernet signal processing module, coupled to the control processing module, for converting the received digital audio signal and the control signal into an Ethernet signal;

The device according to claim 33, further comprising: a broadcast signal receiving module, configured to receive a wireless broadcast analog audio signal;

The audio signal processing module is coupled to the broadcast signal receiving module and the Ethernet signal processing module for converting the analog audio signal into a digital audio signal and outputting to the Ethernet adapter module.

35. Apparatus according to claim 33, further comprising: an external communication module coupled to said control processing module for communication of said audio playback control device with a network.

36. Apparatus according to any of claims 33-35, characterized in that the apparatus comprises a local memory and/or an optical drive connected to the control processing module, the audio memory for storing audio data, the optical drive for reading the optical disc The audio data in the transmission is transmitted to the control processing module.

37. An audio playback system, characterized in that the system comprises:

The audio playback device comprises a speaker and a speaker adapting module connected to the speaker, wherein the speaker adapting module is configured to demodulate the power line communication signal transmitted by the power line, obtain a control signal and/or an audio signal, and output the signal to the speaker;

An audio playback control device, configured to communicate with the audio playback device via a power line, for transmitting the received audio signal to the audio playback device through the power line, generating a control signal according to the received playback control information, and transmitting the control signal to the audio playback device through the power line;

An application server, connected to the audio playback control device via a communication network, for providing audio data and I or playing control information;

The mobile terminal is connected to the application server through a mobile communication network, and is configured to send an audio play control request to the application server.

38. The system of claim 37, wherein: the speaker adaptation module comprises:

39. The system according to claim 38, wherein: the power line communication modem module is connected to the speaker through a power line, and outputs a power signal extracted from the power line communication signal to the speaker device, where the power signal is used as a The power supply for the speaker.

40. The system according to claim 38, wherein: the speaker adapting module and the speaker are provided with a USB interface, and the adapting module and the speaker are connected through a USB interface.

The system according to claim 40, wherein the speaker adapter module provided with the USB interface comprises:

a USB bus signal Ethernet adapting module, connected to the speaker, for mutually converting an Ethernet signal and a USB bus signal, the USB bus signal comprising a digital audio signal and a control signal; a power line communication modem module, and the USB bus signal Ethernet adapter module connection, used to modulate the received Ethernet signal into a power line communication signal transmitted through the power line, and to decode the received power line communication signal into an Ethernet signal to the USB bus signal Ethernet Module output.

42. The system according to claim 41, wherein: the speaker adapter module provided with the USB interface further comprises:

4. The system of claim 37, wherein the audio playback control device comprises:

An external communication module, connected to the control processing module, for communicating with a communication network; an Ethernet signal processing module, coupled to the control processing module, for converting the received digital audio signal and control signal into an Ethernet signal ;

44. The system of claim 43 wherein said audio playback control device further comprises:

a broadcast signal receiving module, configured to receive a wireless broadcast analog audio signal;

45. The system of claim 43 or 44, wherein said audio playback control device further comprises a local memory and/or an optical drive coupled to the control processing module, the audio storage for storing audio data, the optical drive being The audio data in the disc is read and transmitted to the control processing module.

46. System according to any of claims 37-44, characterized in that the mobile terminal is connected to the audio playback control via a Bluetooth interface, an infrared interface, a USB interface or a COM interface.

47. An audio playback control method, the method comprising the following steps: Step A: The mobile terminal sends an audio play request message to an application server, where the request information carries at least the identifier information of the audio playback device and the request for playing. Identification information of audio data;

Step B: The application server generates the play control information according to the audio play request information, and sends the play control information to the audio play control device, where the play control information carries the identification information of the audio data;

Step (1), the audio playback control device sends a control signal and a digital audio signal to the audio playback device according to the playback control information;

The method according to claim 47, wherein the transmitting the control signal and the digital audio signal to the audio playback device according to the playback control information specifically includes:

Step C1, receiving playback control information sent by the application server; Step C2: generate a control signal according to the play control information, and generate a digital audio signal according to the identification information of the audio data;

Step C3: Convert the control signal and the digital audio signal into an Ethernet signal.

Step C4: Modulating the Ethernet signal into a power line communication signal and transmitting the signal to the audio playback device.

The method according to claim 48, wherein the identification information of the audio data indicates that the audio to be played is an audio data file stored by the application server, and carries address information or a file name of the audio data file. The generating the digital audio signal according to the identification information of the audio data in step C2 is specifically: downloading the corresponding audio data file from the application server according to the address information or the file name of the audio file, and converting the audio data file into a corresponding digital audio signal.

The method according to claim 48, wherein the identification information of the audio data indicates that the audio to be played is a broadcast signal and carries the broadcast channel information, and the identification information according to the audio data in the step C2 The digital audio signal is generated by: receiving an analog audio signal of a corresponding channel, and converting the analog audio signal into a digital audio signal.

The method according to claim 48, wherein the audio data identification information indicates that the audio to be played is an audio data file local to the audio playback control device, and carries the address information or file name of the audio data file. The generating the digital audio signal according to the identification information of the audio data in the step C2 is specifically: searching for the corresponding audio file locally in the audio playback control device according to the address information or the file name of the audio file, and converting the audio data file into corresponding Digital audio signal.

52. The method according to claim 47, wherein the mobile terminal communicates with an application server by means of a voice call, a video call, a WAP or a short message.

The method according to claim 47, wherein the playing the digital audio signal according to the control signal in the step D comprises:

Step Dl, receiving a power line communication signal;

Step D2: Demodulating the power line communication signal to obtain an Ethernet signal; Step D3: extracting a control signal and a digital audio signal from the Ethernet signal;

Step D4: Playing a digital audio signal according to the control signal.

54. The method according to claim 47, wherein the step D4 is specifically: converting the digital audio signal into an analog audio signal, and playing the analog audio signal according to the control signal.

The method according to claim 47, wherein the request information in the step A further carries the identification information of the mobile terminal, and the step A and the step B further include: according to the mobile terminal The identification information determines whether the mobile terminal has control authority for the audio playback device, and is, performs step B; otherwise, ends the operation.

56. The method according to any one of claims 47-55, wherein the method further comprises:

Step E: Control, by the mobile terminal, the start, end, speed, or rewind of the audio played by the audio playback device.

The method according to claim 56, wherein the step E is specifically: the mobile terminal sends a control command to the application server by initiating an unstructured supplementary data service connection or by using a short message or by using an IP multimedia subsystem. The application server converts the control command into corresponding playback control information and sends it to the audio playback control device, and the audio playback control device plays the audio according to the playback control information.

The method according to claim 55, wherein the step E is specifically: the mobile terminal sends a start, stop, fast forward or backward control command to the audio playback control device, and the audio playback control device plays according to the control command. Audio.

The method according to any one of claims 47-55, wherein the method further comprises: setting a playlist on the application server by the mobile terminal, the application server transmitting the playlist to the audio play control device, and the audio play control The device downloads the digital audio file in the playlist from the application server and converts it into a corresponding digital audio signal, and controls the audio playback device to play the audio according to the playlist.