CN101841639A - Multimedia signal processing device and multimedia video-audio system - Google Patents
Multimedia signal processing device and multimedia video-audio system Download PDFInfo
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Abstract
The invention provides a multimedia signal processing device and a multimedia video-audio system, wherein the multimedia signal processing device comprises a decoding chip, a wireless video signal sending unit, a control signal receiving unit, a code value converting and transmitting unit and a network unit, wherein the wireless video signal transmitting unit is used for coding a video flow decoded by the decoding chip and sending the coded video flow to a wireless signal receiving unit of a wireless television in the mode of wireless transmission; the control signal receiving unit is used for receiving control signals from a remote controller of external multimedia equipment; the code value converting and transmitting unit is used for converting control signals of the remote controller of the external multimedia equipment received by the control signal receiving unit into a code value corresponding to the external multimedia equipment so as to control the external multimedia equipment; and the network unit is used for communication between a video signal from a network and the wireless television through the wireless video signal transmitting unit. By the invention, connecting wires between the multimedia signal processing device or multimedia peripherals and the television can be reduced, and the sense of experience of users can be improved.
Description
Technical field
The present invention relates to TV technology, particularly, relate to a kind of multimedia signal processing apparatus and multimedia video-audio system.
Background technology
Along with the continuous development of science and technology, the function of television product day by day increases.But because the restriction of domestic technique and cost, also there is following problem in present tv product:
(1) it is all not ideal enough on fuselage weight and light and thin degree to satisfy the tv product of multi-functional definition, and this has reduced sense of experience of users;
(2) owing to now increasing audio frequency, video equipment, these equipment are when being connected with television set, and more connecting line has brought inconvenience to the user, has influenced the attractive in appearance of whole household;
(3) present set-top box can only be corresponding to a television set, if when having multiple TV set, just needs many set-top box, and this has increased life cost, has wasted social resources.
In sum, present tv product also be unrealized wireless penetration and multifunction, this has reduced sense of experience of users and has wasted social resources.
Summary of the invention
The main purpose of the embodiment of the invention is to provide a kind of multimedia signal processing apparatus and multimedia video-audio system, to solve the problem of the relatively poor and waste social resources of user experience sense that present tv product causes owing to be unrealized wireless penetration and multifunction.
To achieve these goals, the embodiment of the invention provides a kind of multimedia signal processing apparatus, this multimedia signal processing apparatus comprises: decoding chip, this multimedia signal processing apparatus also comprises: the wireless video signal transmitting element sends to the wireless signal receiving element of radiotelevisor after being used for the decoded video flowing of decoding chip carried out encoding process, with wireless transmission method; The control signal receiving element is used to receive the control signal from remote controller of external multimedia equipment; Code value switching emission unit, the control signal that is used for remote controller of external multimedia equipment that the control signal receiving element is received is converted to and the corresponding code value of external multimedia equipment, with control external multimedia equipment; Network element, being used in the future, the vision signal of automatic network communicates by wireless video signal transmitting element and radiotelevisor.
Above-mentioned wireless video signal transmitting element comprises: the video reception module is used for receiving from the decoded video flowing of decoding chip; Coding module is used for the video flowing that the video reception module receives is carried out encoding process according to video compression standard and predetermined compression algorithm; The vision signal sending module is used for the signal behind the coding module coding is sent to the wireless signal receiving element of radiotelevisor.
Above-mentioned control signal receiving element also is used for: receive from radiotelevisor control of remote controller signal, and the radiotelevisor control of remote controller signal that receives is matched processings, control radiotelevisor to realize the radiovision set remote-controller.
Concrete, the control signal receiving element comprises: multimedia control signal receiver module is used to receive the control signal from remote controller of external multimedia equipment; Multimedia control signal sending module is used for the control signal that multimedia control signal receiver module receives is sent to code value switching emission unit; The television control signals receiver module is used to receive radiotelevisor control of remote controller signal and pairing request; The pairing processing module is used for pairing request is preserved, and returns the pairing response message, so that the radiovision set remote-controller is known whether successful matching; The television control signals respond module is used for selecting corresponding video flowing, sending to radiotelevisor with the video flowing that will select by the wireless video signal transmitting element according to the control signal that the radiovision set remote-controller sends.
Above-mentioned code value switching emission unit comprises: the code value modular converter is used for control signal conversion and the corresponding code value of external multimedia equipment from remote controller of external multimedia equipment that the control signal receiving element is received; The control signal sending module is used for code value is sent to external multimedia equipment, with control external multimedia equipment.
The embodiment of the invention also provides a kind of multimedia video-audio system, this system comprises: above-mentioned multimedia signal processing apparatus, at least one radiotelevisor, radiotelevisor is connected with multimedia signal processing apparatus respectively with external multimedia equipment, wherein, radiotelevisor comprises: the wireless signal receiving element, be used for the data flow that the wireless video signal transmitting element of multimedia signal receiving processing unit sends, and the data flow that receives is carried out decoding processing, to obtain video flowing; The video flowing output unit is used for video flowing is outputed to the micro-control unit (MCU) of radiotelevisor.
Above-mentioned wireless signal receiving element comprises: the data flow receiver module is used for the data flow that the wireless video signal transmitting element of multimedia signal receiving processing unit sends; Decoder module is used for the data flow that receives is carried out and the corresponding decoding processing of the encoding process of coding module, to obtain video flowing; The video flowing sending module is used for the video flowing that the decoder module decoding processing is obtained is sent to MCU.
Said system also comprises: at least one external multimedia equipment, and external multimedia equipment is connected with described multimedia signal processing apparatus; Above-mentioned video flowing output unit also is used for from the conventional delivery outlet of multimedia signal processing apparatus or output to the MCU of radiotelevisor from the video flowing of external multimedia equipment.
Preferably, above-mentioned radiotelevisor also comprises: touch-screen is used to receive the control signal from the outside; Touch-screen control signal transmitting element sends to described control signal receiving element after being used for the control signal that described touch-screen receives is converted to corresponding operational order, to realize the control to described radiotelevisor.
Above-mentioned control signal receiving element also is used for: receive the operational order that described touch-screen control signal transmitting element sends, to control described radiotelevisor according to described operational order.
Concrete, above-mentioned touch-screen control signal transmitting element comprises: touch-screen control signal processing module is used for the control signal that described touch-screen receives is converted to corresponding operational order; The wireless signal sending module is used for described operational order is sent to described control signal receiving element.
By means of technique scheme one of at least, the function of wireless transmission video flowing, wireless communication and reception remote controller control signal that above-mentioned multimedia signal processing apparatus is integrated, make this multimedia signal processing apparatus to control to many radiotelevisors, many external multimedia equipment, can realize and television set between wireless transmission, reduced connecting line, improved sense of experience of users and saved social resources.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structured flowchart of the multimedia video-audio system that provides of the embodiment of the invention;
Fig. 2 is the structured flowchart of the multimedia signal processing apparatus that provides of the embodiment of the invention;
Fig. 3 is the structured flowchart of wireless video signal transmitting element 14 in the multimedia signal processing apparatus that provides of the embodiment of the invention;
Fig. 4 is the structured flowchart of code value switching emission unit 16 in the multimedia signal processing apparatus that provides of the embodiment of the invention;
Fig. 5 is the structured flowchart of control signal receiving element 15 in the multimedia signal processing apparatus that provides of the embodiment of the invention;
Fig. 6 is the structured flowchart of the radiotelevisor that provides of the embodiment of the invention;
Fig. 7 is the structured flowchart according to wireless signal receiving element 20 in the radiotelevisor of the embodiment of the invention;
Fig. 8 is the detailed block diagram according to the multimedia video-audio system of the embodiment of the invention;
Fig. 9 is the another structured flowchart of the radiotelevisor that provides of the embodiment of the invention;
Figure 10 is another detailed diagram according to the multimedia video-audio system of the embodiment of the invention;
Figure 11 is the schematic diagram according to the multimedia video-audio system of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Wireless penetration and multifunction because present tv product also is unrealized make sense of experience of users relatively poor, have also wasted social resources simultaneously.At present, along with the fast development of wireless technology, various wireless protocols all are gradually improved, as: 802.11n, 802.15.4, ZigBee, RF4CE etc.Based on this, the embodiment of the invention provides a kind of multimedia signal processing apparatus and multimedia video-audio system, use wireless signal control transmission video flowing and remote signal, with Wi-Fi, bluetooth or RF (radio frequency, Radio Frequency) technology is applied in the television product and goes, thereby can realize the wireless penetration and the multifunction of tv product.The present invention is described in detail below in conjunction with accompanying drawing.
The embodiment of the invention provides a kind of multimedia video-audio system, as shown in Figure 1, this multimedia video-audio system comprises: multimedia signal processing apparatus 1, at least one radiotelevisor 2 (shown in the figure one), at least one external multimedia equipment 3 (shown in the figure one), wherein, radiotelevisor 2 is connected with multimedia signal processing apparatus 1 respectively with external multimedia equipment 3, radiotelevisor 2 and multimedia signal processing apparatus 1 can be wired connection or wireless connections, and radiotelevisor 2 is connected with external multimedia equipment 3.Describe for clear, below present television set that only can wired connection is called general television set, the external multimedia equipment 3 among the present invention can be equipment such as DVD, VCD.
Below describe multimedia signal processing apparatus 1 and radiotelevisor 2 respectively in detail.
(1) multimedia signal processing apparatus 1
As shown in Figure 2, multimedia signal processing apparatus 1 comprises: tuner 10, distributor 11, decoding chip 12 and conventional delivery outlet are (promptly, the STB delivery outlet of existing set-top box) 13, wireless video signal transmitting element 14, control signal receiving element 15 and code value switching emission unit 16 and network element 17, wherein:
Wireless video signal transmitting element 14 sends to the wireless signal receiving element of radiotelevisor after being used for the decoded video flowing of described decoding chip carried out encoding process, with wireless transmission method;
Control signal receiving element 15 is used to receive the control signal from remote controller of external multimedia equipment;
Code value switching emission unit 16, the control signal that is used for remote controller of external multimedia equipment that the wireless video signal transmitting element is received is converted to and the corresponding code value of external multimedia equipment, with control external multimedia equipment;
As seen from the above description, the multimedia signal processing apparatus that present embodiment provides can be called the Multifucntional set-top box (for convenience, be designated hereinafter simply as set-top box), integrated at present can receiving digital signals or set-top box functionality and the function of wireless transmission video flowing, the function of wireless communication and the function that receives remote controller of external multimedia equipment of analog signal.By this Multifucntional set-top box, can realize control to many radiotelevisors, many external multimedia equipment, can realize wireless transmission video flowing and function of surfing the Net, reduce connecting line, improve sense of experience of users and saved social resources.
In specific implementation process, can adopt the RF of encryption or Wi-Fi to carry out the wireless transmission process.Because each wireless device hardware all supports 64/128 WEP (Wired Equivalent Privacy) to encrypt at present, also support safer WPA/WPA2 (Wi-Fi Protected Access) encryption mechanism, as AES-CCMP (Advanced EncryptionStandard-CTR mode CBC-MAC mode) or WiFi-WPA2, part is also supported the authentication based on 802.1x, though the encryption mechanism principle is had nothing in common with each other, and all is used in the different application.In the present embodiment, can adopt any one the data in the above-mentioned agreement to encrypt, the invention is not restricted to this according to real needs to transmission.
For existing set-top box functionality, as shown in Figure 2, the TV programme analog signal enters into distributor 11 through tuner 10, resolvedly in distributor 11 goes out different channels.Simultaneously, digital high-definition television signal, AV signal etc. directly enter into distributor 11, the channel that parses with distributor 11 is waited for the controlled command selection output of the multiplex circuit switch of general television set, the channel signals of output reverts to original video stream after decoding chip 12 decodings, original video stream can be by STB delivery outlet 13 (promptly, existing conventional set-top box output interface) export general television set to and play, STB delivery outlet 13 is by connecting line and general television set transmission original video stream.
Than prior art, can realize the wireless penetration of tv product by above-mentioned wireless video signal transmitting element 14, video flowing can directly send to radiotelevisor by Wireless transmission mode.Particularly, as shown in Figure 3, wireless video signal transmitting element 14 comprises:
Vision signal sending module 142 is used for the signal behind the coding module coding is sent to the wireless signal receiving element of radiotelevisor.
Before entering video reception module 140, decode through decoding chip from the signal source of distributor input, be resumed and be original video stream.Original video stream incoming video signal receiver module 140, for guaranteeing data transmission quality, 141 pairs of original video stream of coding module according to video compression standard (for example, MPEG-2 (Moving Pictures Experts Group-2, the dynamic image MPEG-2), MPEG-4, MPEG-7 etc.) encode with corresponding compression algorithm, to be converted into the video professional format that is easy to transmit, for example, be converted to the high definition data flow transmission to radiotelevisor.Then by the video information after the 142 transmission conversions of vision signal sending module.Just a kind of algorithm of a compression standard here, as M-JPEG (Motion-Join Photographic Experts Group, the compression of motion rest image), MPEG (comprises MPEG-1, MPEG-2, MPEG-4, four kinds of algorithms of MPEG-7), H.264, Wavelet (wavelet compression algorithm), JPEG 2000, AVS etc.
The control signal that above-mentioned control signal receiving element 15 receives from remote controller of external multimedia equipment, and the control signal of remote controller of external multimedia equipment sent to code value switching emission unit, to achieve a butt joint into the remote control of the external multimedia equipment of set-top box.Particularly, as shown in Figure 4, code value switching emission unit 16 comprises:
Code value modular converter 160 is used for control signal conversion and the corresponding code value of external multimedia equipment from remote controller of external multimedia equipment that the control signal receiving element is received;
Control signal sending module 161 is used for the code value after the conversion is sent to external multimedia equipment, with control external multimedia equipment.
For example, if remote controller of external multimedia equipment is to adopt the NEC telecontrol code to realize distant control function, then this code value modular converter will be converted to the RF control signal of receiving the infrared sign indicating number of NEC, and control signal sending module 161 sends to external multimedia equipment with the infrared sign indicating number of NEC and controls then.
By above-mentioned code value switching emission unit 16, can realize many external multimedia equipment that are connected to same set-top box are carried out remote control, that is to say, the user only need operate the control that just can realize many external multimedia equipment to same set-top box, improve sense of experience of users, saved social resources simultaneously.
Above-mentioned control signal receiving element 15 also is used for receiving from radiotelevisor control of remote controller signal and pairing request, at first control signal receiving element 15 matches processing with the pairing request of the radiovision set remote-controller that receives, after successful matching, control radiotelevisor by set-top box according to control signal realization radiovision set remote-controller.Particularly, as shown in Figure 5, control signal receiving element 15 comprises:
Multimedia control signal receiver module 151 is used to receive the control signal from remote controller of external multimedia equipment;
Multimedia control signal sending module 152 is used for the control signal that multimedia control signal receiver module receives is sent to code value switching emission unit 16;
Television control signals receiver module 153 is used to receive radiotelevisor control of remote controller signal and pairing request;
Television control signals respond module 155 is used for selecting corresponding video flowing, sending to described radiotelevisor to realize the video flowing that will select by the wireless video signal transmitting element according to the control signal that the radiovision set remote-controller sends.Particularly, from distributor, select and the corresponding signal source of control signal, send to the wireless signal receiving element of radiotelevisor after this signal source process decoding chip decoding, the coding module encoding process, by the wireless video signal sending module.
Particularly, the radiovision set remote-controller can be the RF remote controller owing to adopt RF to communicate, therefore, the RF remote controller corresponding with each radiotelevisor all need with set-top box in the control signal receiving element match.The RF remote controller sends pairing request, and the control signal receiving element in the set-top box receives the request back request is responded, and returns unpaired message.Concrete operations are: according to the RF4CE standard, the pairing request of RF remote controller is sent with form of data frames, comprises different information in the different byte in each Frame.After control signal receiving element in the set-top box receives this pairing request, Frame is carried out data analysis, to determine whether the RF remote controller requires pairing, if be defined as requiring pairing, then the control signal receiving element generates a unique key, and this key information is stored in the Frame, send to the RF remote controller.Need to prove: all pairing behaviors all only occur in during the RF remote controller communicates by letter with the first time of set-top box, because pairing has produced the key of unique correspondence, thereby in subsequent RF remote controller and set-top box mutual, the RF remote controller only need be carried at key and send to set-top box in the control signal together, and this set-top box is which RF remote controller is distinguishable this control signal come to the key authentication that comprises in the control signal.
The RF remote controller is verified this information after receiving unpaired message, is proved to be successful the back successful matching.Whole pairing process is to adopt two-way communication.After the successful matching, when the user uses the RF remote controller that radiotelevisor is carried out remote control, be actually directly the control signal receiving element in the set-top box is sent guidance command.The television control signals respond module is according to unpaired message, selects corresponding signal source and be input in the decoding chip from distributor, sends to the radio receiving unit of television set then after the encoding process through the wireless video signal transmitting element.In the specific implementation, also can from distributor, select directly to export to after the corresponding signal source video flowing output unit of general television set by the STB delivery outlet.
Match and preserve by 15 pairs of radiotelevisor control of remote controller of control signal receiving element signal, make many radiotelevisors that insert set-top box to transmit control signal to set-top box, to realize control to radiotelevisor by remote controller separately.Many the radiotelevisors here can be respectively at chummery not, the remote controller of each radiotelevisor with the set-top box successful matching after, the user only need be with remote controller alignment machine top box, radiotelevisor that just can the remote controllers correspondence, improved sense of experience of users, and, since many radiotelevisors can with same set-top box wireless connections, reduce the quantity of connecting line, thereby saved social resources.
(2) radiotelevisor 2
As shown in Figure 6, this radiotelevisor 2 (functional unit that general television set does not have only is shown among the figure) comprising:
Wireless signal receiving element 20 is used for the data flow that the wireless video signal transmitting element of multimedia signal receiving processing unit (being above-mentioned set-top box) sends, and the described data flow that receives is carried out decoding processing, to obtain video flowing;
Video flowing output unit 21 is used for described video flowing is outputed to the micro-control unit MCU of described radiotelevisor, to realize outputting video streams.
Just can realize radio communication with above-mentioned multimedia signal processing apparatus 1 by wireless signal receiving element 20, the data flow of multimedia signal receiving processing unit 1 (being designated hereinafter simply as set-top box) output, the data flow application of receiving is carried out decoding processing with the corresponding decompression algorithm of compression algorithm of wireless video signal transmitting element, to obtain original video stream.By video flowing output unit 21 (function) video flowing is outputed to the MCU (micro-control unit, Micro Control Unit) of television set then, to realize outputting video streams with above-mentioned multiplex circuit switch.
Particularly, as shown in Figure 7, wireless signal receiving element 20 comprises:
Data flow receiver module 201 is used for the data flow that the wireless video signal transmitting element of receiving set up box sends;
Video flowing sending module 203 is used for the video flowing that the decoder module decoding processing is obtained is sent to MCU.
In specific implementation process, the video flowing output unit also is used for and will outputs to MCU from the STB delivery outlet or from the video flowing of external multimedia equipment.
Compare and general television set, the radiotelevisor that the embodiment of the invention provides passes through wireless signal receiving element and video flowing output unit reception transmission and the output wireless video signal from set-top box, overcome the more problem of connecting line of the prior art, saved social resources.
Fig. 8 is the detailed diagram according to the multimedia video-audio system of the embodiment of the invention, and as shown in Figure 8, the TV programme analog signal enters into distributor through tuner, resolvedly in distributor goes out different channels.Simultaneously, digital high-definition television signal, AV signal etc. directly enters into distributor, exports from the video flowing output unit of television set with the channel that distributor parses.After the signal process decoding chip decoding of distributor output, can be (promptly by existing set-top box output interface, conventional STB delivery outlet) is connected output with general television set, equally also can behind decompress(ion), exports by the wireless signal receiving element that wireless signal Transmit-Receive Unit the function of above-mentioned wireless video signal transmitting element and control signal receiving element (this wireless signal Transmit-Receive Unit is integrated) is sent in the radiotelevisor after compression.The radiotelevisor here can integrated general television set function and the function of wireless signal receiver module, video flowing output unit, promptly, if export by the STB delivery outlet through the decoded signal of decoding chip, then the STB delivery outlet outputs signal to the video flowing output unit, the video flowing output unit exports signal (comprising VGA, HDMI, AV, high definition, USB, audio frequency etc.) to MCU, plays by display unit and/or audio frequency, earphone output unit; If export after compression by the wireless signal Transmit-Receive Unit through the decoded signal of decoding chip, then the wireless signal Transmit-Receive Unit is sent to the wireless signal receiving element with signal, by the wireless signal receiving element signal is carried out exporting the video flowing output unit to behind the decompress(ion), and export signal to MCU by the video flowing output unit and play.
Because the restriction of TV SKD, set-top box can directly be controlled by the RF remote controller of television set, and because the RF characteristic can realize that multiple TV set (comprising radiotelevisor or general television set) uses same set-top box simultaneously, this multiple TV set can be distributed in not chummery.For the external multimedia equipment that inserts set-top box (as DVD player etc.), after the wireless signal Transmit-Receive Unit receives RF control of remote controller signal (also can be called remote signal), control signal is sent to code value switching emission unit, to be converted to external multimedia equipment acceptable code value, code value after code value switching emission unit will be changed then is transmitted to corresponding foreign medium equipment, achieves a butt joint into the remote control of the external multimedia equipment of set-top box.
In addition, as shown in Figure 8, network element in the set-top box can be similar to the family wireless route, can be that netting twine connects or wireless access, and the vision signal of automatic network is carried out radio communication and video transmission with radiotelevisor after receiving cell processing via wireless signal in the future then.For conventional set-top box, the TV programme analog signal is after tuner enters into filter (Filter), and the output digital video signal is given the video flowing output unit, exports signal to MCU by the video flowing output unit and plays.
Preferably, this radiotelevisor 2 can also have touch screen functionality, and particularly, as shown in Figure 9, this radiotelevisor also comprises:
Touch-screen 22 is used to receive the control signal from the outside;
Touch-screen control signal transmitting element 23 is used for the control signal that touch-screen receives is converted to the control signal receiving element that sends to set-top box after the corresponding operational order, to realize the control to radiotelevisor.This touch-screen control signal transmitting element 23 specifically comprises: touch-screen control signal processing module is used for the control signal that touch-screen receives is converted to corresponding operational order; The wireless signal sending module is used for operational order is sent to the control signal receiving element.
This control signal can touch touch-screen by the user and produce, and is converted to concrete operational order by touch-screen control signal processing module, by the wireless signal sending module operational order is sent to set-top box then.The operational order here is equivalent to the control signal that remote controller sends, and is mainly used in the control radiotelevisor, by touch screen functionality, has increased sense of experience of users.
The control signal receiving element receives after the control signal of the touch-screen that sends from the wireless signal sending module, concrete operation can be with reference to the processing of above-mentioned control signal receiving element processing from the control signal of TV remote controller, also be to match processing, also be only when the control signal receiving element receives the control signal of touch-screen for the first time, just to match processing, do not repeat them here particularly.
Figure 10 is another detailed diagram according to the multimedia video-audio system of the embodiment of the invention, as shown in figure 10, compare and system shown in Figure 8, radiotelevisor in this example has touch screen functionality, touch-screen is converted to corresponding operational order with the multimedia processing module (this multimedia processing module is equivalent to above-mentioned touch-screen control signal processing module) that control signal sends among the DMP (this DMP is equivalent to above-mentioned touch-screen control signal transmitting element 23), the multimedia processing module sends to operational order the wireless signal sending module again, by the wireless signal sending module operational order is sent to control signal receiving element in the set-top box then, to realize control to radiotelevisor.Particularly, control signal is processed into operational order by the multimedia processing module that the FPC connecting line is input on the DMP, and the wireless signal sending module sends operational order then.
Like this, the user just can use touch-screen that radiotelevisor is controlled, and can certainly control radiotelevisor by remote controller, has improved sense of experience of users.
Below in conjunction with system shown in Figure 11, provide an example.
As shown in figure 11, this system comprises: two radiotelevisors 1 and 2, an external multimedia equipment (DVD player) 3, and above-mentioned set-top box 4, wherein, two radiotelevisors 1 and 2, DVD player 3 are connected with set-top box 4 respectively, below the remote controller of radiotelevisor 1 are called RF remote controller 1, and the remote controller of radiotelevisor 2 is called RF remote controller 2.
The user uses the Infrared remote controller of DVD player 3 and the control signal receiving element in the set-top box 4 to match, then by the code value of code value switching emission unit record corresponding operating, in order to later stage code value switching emission unit the infrared sign indicating number of DVD player 3 emissions is carried out remote control, simultaneously, use RF remote controller 1,2 and set-top box 4 to match respectively.
The user sends the remote signal of selecting TV programme C by RF remote controller 1, perhaps the touch-screen by radiotelevisor 1 sends the control signal of selecting TV programme C, set-top box identifies the guidance command (perhaps sending control signal via touch-screen) of RF remote controller 1, from distributor, select corresponding channel to be input in the decoding chip, after compressing processing, the wireless video signal transmitting element is transmitted to the wireless signal receiving element of radiotelevisor 1 then, after wireless signal receiving element decompression processing, be input to the video flowing output unit, the video flowing of video output unit after with decompress(ion) exports MCU to then, and MCU exports video flowing to display unit with display of television programmes C.
The user sends the remote signal of selecting video V in the DVD player 3 by RF remote controller 2, perhaps the touch-screen by radiotelevisor 2 sends the control signal of selecting video V in the DVD player 3, after resolving remote signal (perhaps control signal), control signal receiving element in the set-top box 4 is input to code value switching emission unit, launch corresponding infrared sign indicating number control DVD player output video V by this code value switching emission unit, the output of concrete video V can comprise: (1) directly output video V exports display unit to through MCU then to the video flowing output unit of radiotelevisor 2; (2) output video V exports the video flowing output unit of radiotelevisor 2 to the distributor place of set-top box by conventional STB output interface after the decoding chip decoding, exports display unit to through MCU then; (3) output video V is sent to the wireless signal receiving element of radiotelevisor 2 to the distributor place of set-top box by the wireless data transceiving unit after the decoding chip decoding, exports display unit to via video flowing output unit, MCU then.Can be by connecting line of the prior art for above-mentioned DVD player respectively and the transmission of the video flowing between the set-top box 4, radiotelevisor 2.
As mentioned above,, realized the wireless penetration and the multifunction of tv product, improved sense of experience of users, and saved social resources by above-mentioned set-top box and radiotelevisor.
In sum, the embodiment of the invention has realized the wireless penetration of tv product, the characteristics of portability, the user is not subjected to the influence of existing equipment that family purchases, and set-top box and television set are relatively independent, both can use separately, cooperate existing equipment, identical with the traditional product using method, can cooperatively interact again, thereby make up the audio-visual network of wireless family distributed multimedia, improve sense of experience of users, and saved social resources.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method can instruct relevant hardware to finish by program, this program can be stored in the computer read/write memory medium, such as ROM/RAM, magnetic disc, CD etc.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. multimedia signal processing apparatus, comprising: decoding chip is characterized in that described multimedia signal processing apparatus also comprises:
The wireless video signal transmitting element sends to the wireless signal receiving element of radiotelevisor after being used for the decoded video flowing of described decoding chip carried out encoding process, with wireless transmission method;
The control signal receiving element is used to receive the control signal from remote controller of external multimedia equipment;
Code value switching emission unit, the control signal that is used for described remote controller of external multimedia equipment that described control signal receiving element is received is converted to and the corresponding code value of described external multimedia equipment, to control described external multimedia equipment;
Network element, being used in the future, the vision signal of automatic network communicates by described wireless video signal transmitting element and described radiotelevisor.
2. multimedia signal processing apparatus according to claim 1 is characterized in that, described wireless video signal transmitting element comprises:
The video reception module is used for receiving from the decoded video flowing of described decoding chip;
Coding module is used for the video flowing that described video reception module receives is carried out encoding process according to video compression standard and predetermined compression algorithm;
The vision signal sending module is used for the signal behind the described coding module coding is sent to the wireless signal receiving element of described radiotelevisor.
3. multimedia signal processing apparatus according to claim 1, it is characterized in that, described control signal receiving element also is used for: receive from radiotelevisor control of remote controller signal, and the radiotelevisor control of remote controller signal that receives matched processing, control described radiotelevisor to realize described radiovision set remote-controller.
4. multimedia signal processing apparatus according to claim 3 is characterized in that, described control signal receiving element comprises:
Multimedia control signal receiver module is used to receive the control signal from described remote controller of external multimedia equipment;
Multimedia control signal sending module is used for the control signal that described multimedia control signal receiver module receives is sent to described code value switching emission unit;
The television control signals receiver module is used to receive described radiotelevisor control of remote controller signal and pairing request;
The pairing processing module is used for described pairing request is preserved, and returns the pairing response message, so that described radiovision set remote-controller is known whether successful matching;
The television control signals respond module is used for selecting corresponding video flowing, sending to described radiotelevisor with the video flowing with described selection by described wireless video signal transmitting element according to the control signal that described radiovision set remote-controller sends.
5. multimedia signal processing apparatus according to claim 1 is characterized in that, described code value switching emission unit comprises:
The code value modular converter is used for control signal conversion and the corresponding code value of described external multimedia equipment from described remote controller of external multimedia equipment that described control signal receiving element is received;
The control signal sending module is used for described code value is sent to described external multimedia equipment, to control described external multimedia equipment.
6. multimedia video-audio system, it is characterized in that, described system comprises: as each described multimedia signal processing apparatus and at least one radiotelevisor in the claim 1 to 5, described radiotelevisor is connected with described multimedia signal processing apparatus, wherein, described radiotelevisor comprises:
The wireless signal receiving element is used to receive the data flow that the wireless video signal transmitting element of described multimedia signal processing apparatus sends, and the described data flow that receives is carried out decoding processing, to obtain video flowing;
The video flowing output unit is used for described video flowing is outputed to the micro-control unit MCU of described radiotelevisor.
7. multimedia video-audio system according to claim 6 is characterized in that, described wireless signal receiving element comprises:
The data flow receiver module is used to receive the data flow that the wireless video signal transmitting element of described multimedia signal processing apparatus sends;
Decoder module is used for the data flow that receives is carried out and the corresponding decoding processing of the encoding process of described coding module, to obtain video flowing;
The video flowing sending module is used for the video flowing that described decoder module decoding processing is obtained is sent to described MCU.
8. multimedia video-audio system according to claim 6 is characterized in that, described system also comprises: at least one external multimedia equipment, and described external multimedia equipment is connected with described multimedia signal processing apparatus;
Described video flowing output unit also is used for from the conventional delivery outlet of described multimedia signal processing apparatus or output to the MCU of described radiotelevisor from the video flowing of external multimedia equipment.
9. multimedia video-audio system according to claim 6 is characterized in that, described radiotelevisor also comprises:
Touch-screen is used to receive the control signal from the outside;
Touch-screen control signal transmitting element sends to described control signal receiving element after being used for the control signal that described touch-screen receives is converted to corresponding operational order, to realize the control to described radiotelevisor.
10. multimedia video-audio system according to claim 9, it is characterized in that, described control signal receiving element also is used for: receive the operational order that described touch-screen control signal transmitting element sends, to control described radiotelevisor according to described operational order;
Wherein, described touch-screen control signal transmitting element comprises:
Touch-screen control signal processing module is used for the control signal that described touch-screen receives is converted to corresponding operational order;
The wireless signal sending module is used for described operational order is sent to described control signal receiving element.
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