CN101982998A - Multimedia wireless router and receiving terminal and network system thereof - Google Patents
Multimedia wireless router and receiving terminal and network system thereof Download PDFInfo
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Abstract
The invention provides a multimedia wireless router and a receiving terminal and a network system thereof. The multimedia wireless router comprises an analog audio/video signal processing module, a wire television signal processing module, a first coder and a wireless transmitting module, wherein the analog audio/video signal processing module is provided with a DVD signal receiving terminal and used for processing an analog audio/video signal received from the DVD signal receiving terminal into first TS code stream; the wire television signal processing module is provided with a wire television signal receiving terminal and used for processing a wire television signal received from the wire television signal receiving terminal into second TS code stream; the first coder is connected with the analog /video signal processing module and the wire television signal processing module respectively and used for scrambling the first TS code stream and the second TS code stream respectively and coding the first TS code stream and the second TS code stream into real-time transmission protocol packets; and the wireless transmitting module is connected with the first coder and used for wirelessly transmitting the real-time transmission protocol packets. Through the multimedia wireless router, one or more different video signal sources provide signals for multiple playing devices in a household.
Description
Technical field
The present invention relates to Radio Transmission Technology, relate in particular to multi-media radio router and receiving terminal thereof, network system.
Background technology
In recent years,, have at least one television set in each family usually, a DVD player and a computer along with improving constantly of living standards of the people.Because the digitlization of wired broadcasting television network, each television set all need be equipped with the reception that a set-top box realizes digital catv signal, multiple TV set in the family is because the restriction of set-top box, but the television set TV reception that is equipped with set-top box is only arranged wherein, if desire on this multiple TV set, to watch cable digital TV, then need be equipped with a plurality of set-top box.When watching the video information of DVD player broadcast, there is the restriction of corresponding television set of a DVD player or computer too by television set or computer.
One-to-one relationship between video signal source (set-top box, DVD player etc.) and the vision signal playback equipment can't satisfy the pursuit of people to comfortableization of living, how to remove this restricted problem one to one, the vision signal that makes the digital catv signal that received in the family and DVD player provide can show on a plurality of playback equipments, be the problem that people very pay close attention to.
Summary of the invention
The invention provides multi-media radio router and receiving terminal thereof, network system, only can provide the restricted problem of vision signal to a vision signal playback equipment in order to solve in the prior art video signal source, realize a kind of multi-media radio router that can make that one or more different vision signals that video signal source provided receive on can a plurality of playback equipments within the family.
The invention provides a kind of multi-media radio router, comprising:
Simulation audio/video signal processing module has DVD signal receiving end, and the simulation audio/video signal processing that described simulation audio/video signal processing module is used for receiving from described DVD signal receiving end becomes first to transmit code stream;
The cable TV signal processing module has cable TV signal and receives terminal, and the cable TV signal that described cable TV signal processing module is used for receiving from described cable TV signal reception terminal is processed into second and transmits code stream;
First encoder is connected with described cable TV signal processing module with described analog video signal processing module respectively, is used for that the described first transmission code stream and described second is transmitted code stream and carries out scrambling respectively and be encoded to the real time transport protocol bag;
Wireless transmitter module is connected with described first encoder, is used for described real time transport protocol bag is carried out wireless transmission.
The present invention also provides a kind of multi-media radio router receiving terminal, comprising:
Wireless receiving module is used for wireless receiving real time transport protocol bag;
First decoder is connected with described wireless receiving module, is used for described real time transport protocol bag is decoded and the transmission code stream of descrambling for compressing;
Second decoder is connected with described first decoder, and the transmission code stream decoding that is used for described compression is digital audio/video signal;
Digital to analog converter has simulation audio/video signal output terminal, and described digital to analog converter is connected with described second decoder, is used for described digital audio/video conversion of signals for simulation audio/video signal and by described simulation audio/video signal output terminal output.
The present invention also provides a kind of network system, comprises the multi-media radio router that the invention described above provides, and the multi-media radio router receiving terminal that provides of the invention described above.
Multi-media radio router provided by the invention, multi-media radio router receiving terminal and network system, by utilizing simulation audio/video signal processing module to obtain and handle the DVD signal, utilize the cable TV signal processing module to obtain and handle cable TV signal, and by utilizing first encoder to the scrambling and be encoded to the real time transport protocol bag respectively of this two paths of signals, by wireless transmitter module this real time transport protocol bag is carried out wireless transmission and realized DVD signal and cable TV signal radio broadcasting within the family, and receive the multi-media signal of this broadcasting by the wireless receiving module of multi-media radio router receiving terminal, and carry out corresponding descrambling, processing such as decoding, thus realized within the family any many TVs or computer on show the vision signal that DVD player or cable television provide.
Description of drawings
Fig. 1 is the structural representation of multi-media radio router of the present invention.
Fig. 2 is the structural representation of multi-media radio router receiving terminal of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer,, technical scheme of the present invention is clearly and completely described below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of multi-media radio router of the present invention.As shown in Figure 1, this multi-media radio router comprises simulation audio/video signal processing module 10, cable TV signal processing module 20, first encoder 30 and wireless transmitter module 40.Concrete structure is:
Simulation audio/video signal processing module 10, has DVD signal receiving end, this simulation audio/video signal processing module 10 is connected with DVD player by this DVD signal receiving end, be used for obtaining simulation audio/video signal from DVD player, and this simulation audio/video signal processing module 10 is also handled the simulation audio/video signal that is obtained, transmit to obtain first of this simulation audio/video signal that (Transport Stream is designated hereinafter simply as: TS) code stream;
Cable TV signal processing module 20, have cable TV signal and receive terminal, this cable TV signal processing module 20 receives terminal by this cable TV signal and is connected with cable television, be used for obtaining cable TV signal from cable television, and this cable TV signal processing module 20 is the cable TV signal to being obtained also, to obtain the 2nd TS code stream of this cable TV signal;
According to the foregoing description, because the multi-media radio router comprises simulation audio/video signal processing module 10, first encoder 30 and the wireless transmitter module 40 that can realize that simulation audio/video signal that DVD player provides is broadcasted in home-ranges, removed the restriction relation that DVD player in the home-ranges can only provide signal to a playback equipment (for example TV or computer); And owing to also comprise wired TV signal processing module 20, this cable TV signal processing module 20 by with simulation audio/video signal processing module 10 shared first encoder 30 and wireless transmitter modules 40, can realize that the cable TV signal that cable television provides broadcasts in home-ranges, utilize playback equipment (for example TV or computer) when watching cable television program in the home-ranges thereby removed, each playback equipment all need be equipped with independent cable TV signal receiving and processing device (being set-top box).As seen, multi-media radio router of the present invention can realize that the vision signal that the cable TV signal that received and DVD player provide can show on a plurality of playback equipments.
In the above-described embodiments, simulation audio/video signal processing module 10 can specifically comprise the analog to digital converter 11 and second encoder 12.Analog to digital converter 11 is provided with DVD signal receiving end, this DVD signal receiving end is connected with DVD player, analog to digital converter 11 receives the simulation audio/video signal that DVD player sent by this DVD signal receiving end, and should to simulate the number conversion of audio/video signal mode be digital audio/video signal.Second encoder 12 is connected with analog to digital converter 11, obtains the above-mentioned digital audio/video signal through conversion of analog to digital converter 11 outputs, and this numeral audio/video signal is carried out compressed encoding, obtains a TS code stream.
In the above-described embodiments, since video encoding and decoding standard of new generation H.264 with MPEG2 compression performance excellence, picture quality height, can satisfy the Video Applications of various different rates, so second encoder is preferably H.264 encoder or mpeg 2 encoder.
In the above-described embodiments, cable TV signal processing module 20 can specifically comprise TV tuner 21 and cable TV demodulator 22.TV tuner 21 is provided with cable TV signal and receives terminal, and promptly TV tuner 21 is connected with cable television by cable TV signal reception terminal, receives the cable TV signal of cable television transmission.This cable TV signal comprises by the radiofrequency signal after the digital modulation mode modulation, this radiofrequency signal is divided into a plurality of TS code streams by different frequency range, and each TS code stream can be single-unit order TS code stream (promptly only comprising a TV programme in a TS code stream), also can be for by the Polymera TS code stream of multiple connection (promptly comprising a plurality of TV programme in a TS code stream).21 pairs of cable TV signals that received of TV tuner carry out filtering according to designated frequency band, obtain TS code stream once modulation, because cable TV signal is radio frequency transmission in cable television, so TV tuner 21 is also carried out down-converted to this modulated TS code stream, to obtain the modulated TS code stream of intermediate frequency.
In the above-described embodiments, wireless transmitter module 40 can for example comprise Wi-Fi router four 1 and the antenna 42 that is connected with this Wi-Fi router four 1.
In the foregoing description of multi-media radio router of the present invention, send into simulation audio/video signal processing module 10 from the simulation audio/video signal of DVD player, after analog to digital converter 11 is digital audio/video signal with this conversion of signals, send into second encoder 12, for example be encoder/MPEG 2 encoders H.264, carry out digital audio/video Signal Compression, obtain H.264 TS code stream/MPEG 2 TS code streams.This H.264 TS code stream/MPEG2 TS code stream carry out scrambling by the TS2RTP encoder according to rule of specialty, and the TS code stream after the scrambling is encoded to RTP bag.Wi-Fi router four 1 connects for the TS2RTP encoder provides TCP/IP, and the TS2RTP encoder is clean culture RTP bag in this TCP/IP connection, and Wi-Fi router four 1 carries out wireless transmission with the RTP bag that obtains by antenna 42.So far, realized that the simulation audio/video signal that DVD player is provided broadcasts in home-ranges.
In addition, in the foregoing description of multi-media radio router of the present invention, cable TV signal from cable television inserts TV tuner 21, finish the frequency range filtering and the down-conversion of cable TV signal by TV tuner 21, the intermediate frequency filtering that obtains is sent into cable TV demodulator 22, obtain the H.264 TS code stream or the MPEG2 TS code stream of cable TV signal by 22 demodulation of cable TV demodulator.Afterwards, be similar to the simulation audio/video Signal Processing process that DVD player is provided, H.264 TS code stream or MPEG2 TS code stream send into that the TS2RTP encoder is encoded and carry out wireless transmission by Wi-Fi router four 1 by antenna 42 with this.So far, realized the cable TV signal that cable television provides is broadcasted in home-ranges.
Those skilled in the art is to be understood that, though in the above-described embodiments, the simulation audio/video signal processing module 10 of multi-media radio router of the present invention comprises the analog to digital converter 11 and second encoder 12, cable TV signal processing module 20 comprises TV tuner 21 and cable TV demodulator 22, but the present invention is not limited to this, and any simulation audio/video signal processing that DVD player can be provided becomes the structure of simulation audio/video signal processing module 10 of a TS code stream and the structure that any cable TV signal that cable television can be provided is processed into the cable TV signal processing module 20 of the 2nd TS code stream all to be applicable to the present invention.
Further, in the multi-media radio router of the foregoing description, also comprise:
Bi-directional RF splitter 60, bi-directional RF splitter 60 comprises local side, first user side and second user side, this local side is connected with cable television, and first user side is connected with cable TV signal processing module 20, and second user side is connected with cable modem module 50.
Multi-media radio router according to the foregoing description, also provide at cable television operators under the prerequisite of the Internet access, promptly when wired TV signal and internet signal altogether during the cable transmission, bi-directional RF splitter 60 is divided into the two-way user side with the cable television that inserts, one the tunnel is cable TV signal, incoming cable television signal processing module 20; Another road is an internet signal, tie-in line cable modem module 50, and after carrying out modulation and handle by cable modem module 50, export wireless transmitter module 40 to and carry out wireless transmission.Utilize the multi-media radio router of the foregoing description, can when finishing multimedia messages radio broadcasting in the family, also provide the Internet to insert.
Further, in the multi-media radio router of the foregoing description, also comprise:
In the multi-media radio router of the foregoing description, simulation audio/video signal processing module 10, cable TV signal processing module 20 and first encoder 30 are provided with control interface, and a plurality of control terminals of this micro controller module 70 are connected with the control interface of above-mentioned module respectively.After micro controller module 70 receives control signal by control signal reception terminal from wireless transmitter module 40, control signal is discerned, if the controlling object of this control signal is this multi-media radio router, then micro controller module 70 is treated to the form that the module of desire control can be discerned with this control signal, and the control interface that sends to respective modules by the control corresponding terminal is to realize control.For example, when micro controller module 70 receives cable TV signal is switched to the control signal of DVD signal, the control terminal that is connected by the control interface with cable TV signal processing module 20 sends cut-off signals, so that the control interface of cable TV signal processing module 20 is carried out the shutoff operation to cable TV signal processing module 20 after receiving this cut-off signals; Simultaneously, micro controller module 70 sends start signal by the control terminal that the control interface with simulation audio/video signal processing module 10 is connected, so that the control interface of simulation audio/video signal processing module 10 is carried out open operation to this simulation audio/video signal processing module 10 after receiving this cut-off signals.By above operation, the signal that this multi-media radio router is broadcasted will switch to the DVD signal by cable TV signal, realize the control operation according to control signal.In addition, by cable TV signal processing module 20 is controlled, for example, also can realize the channel selection control of cable TV etc. by the filtering frequency range of adjusting TV tuner 21 and the processing of 22 pairs of Polymera TS streams of cable TV demodulator.Remove the above-mentioned control signal that is used to control this multi-media radio router, control signal can also be used to control the DVD player that is connected with this multi-media radio router.Control signal for the control DVD player, micro controller module 70 is treated to the understandable infrared control signal of DVD player with this control signal, and by infrared signal transmission terminal (for example being an infrared interface) transmission, after the infrared port of DVD player receives this infrared control signal, carry out the control corresponding operation.Micro controller module 70 also can have and is used for the control terminal that is connected with cable modem module 50, thus the operating state of control line cable modem module 50.
Multi-media radio router according to the foregoing description, owing to have the micro controller module 70 that to control this multi-media radio router and connected DVD player according to the control signal that is received, can control the state of DVD player, the channel selection of cable TV and the mode of operation of this multi-media radio router etc., this mode of operation comprises and realizes that the input of DVD signal, cable TV signal input and the Internet insert any one or two kinds in three kinds of functions, or realizes three kinds of functions simultaneously.The practicality and the convenience of this multi-media radio router have been improved.
The multi-media signal of the radio broadcasting within the family that multi-media radio router of the present invention is provided can show on TV or computer, when need show on TV, the present invention also provides a kind of multi-media radio router receiving terminal, be provided with on TV, be used to receive the multi-media signal of radio broadcasting in the family, and this multi-media signal is handled to show on TV.
Fig. 2 is the structural representation of multi-media radio router receiving terminal of the present invention.As shown in Figure 2, multi-media radio router receiving terminal of the present invention comprises:
Digital to analog converter 400 has simulation audio/video signal output terminal, and digital to analog converter 400 is connected with second decoder 300, and being used for digital audio/video conversion of signals is that the audio/video signal is also by the output of simulation audio/video signal output terminal.
The wireless receiving module 100 of multi-media radio router receiving terminal of the present invention is used to receive the multi-media signal that the multi-media radio router is broadcasted within the family, and this multi-media signal is the real time transport protocol packet form.Wireless receiving module 100 is sent to first decoder 200 (for example being the RTP2TS decoder) with this real time transport protocol bag, from this real time transport protocol bag, recover the TS code stream of compression by first decoder 200, and send into second decoder 300 (for example for H.264/MPEG2 decoder) behind the TS code stream descrambling to this compression, is digital signal by second decoder 300 with this TS code stream decoding, this decoded digital signal is sent into digital to analog converter 400 to generate analogue AV signal or analogue AV differential signal, offers TV and uses.
The multi-media radio router receiving terminal according to the present invention can make the television set in the family use the multi-media signal of radio broadcasting, thereby realize that any multiple TV set in the family can use same DVD signal or cable TV signal.
Further, in the multi-media radio router receiving terminal of the foregoing description, also comprise:
Correspondingly, wireless receiving module 100 comprises that also the control signal that is connected with micro controller module 500 receives terminal, and wireless receiving module 100 also is used for the control signal that receives by control signal reception terminal is carried out wireless transmission.
Wherein, micro controller module 500 receives terminal by infrared control signal and receives infrared control signal, this infrared control signal is that the device with infrared interface by for example Infrared remote controller sends, and this control signal can comprise to the control of the signal source of television set display program (for example being DVD signal or cable TV signal), to the control of cable TV channel selection and to the control of DVD player.Micro controller module 500 is connected with wireless receiving module 100, driving wireless receiving module 100 is set up a wireless network with the wireless transmitter module 40 of multi-media radio router and is connected, and micro controller module 500 is sent to wireless receiving module after the infrared control signal that is received is treated to the form that is suitable for wireless transmission, be sent to the multi-media radio router by the wireless network connection, carry out corresponding control operation according to the control signal that is received by the multi-media radio router.
According to the multi-media radio router receiving terminal of the foregoing description, can control the signal source and the cable TV channel selection of television set display program, can also control DVD player, improved the application convenience of this multi-media radio router receiving terminal.
When need receive the multi-media signal of the radio broadcasting within the family that multi-media radio router of the present invention provides by computer, because computer itself is equipped with Wi-Fi client modules (radio receiver) and decoder (second decoder) H.264/MPEG2, and being used for decoding of real time transport protocol bag and descrambling by assembling in computer is the decoder or the decoding software (first decoder) of TS code stream, can plays this radio multimedium signal on computers.
In addition, also can realize that the transport process of this control signal and multi-media radio router receiving terminal of the present invention are similar, so do not repeat them here by the control to the multi-media radio router of mouse and keyboard by the multimedia receiving software is set on computers.
The present invention also provides a kind of network system, and this network system comprises the multi-media radio router of the above embodiment of the present invention as shown in Figure 1, and the multi-media radio router receiving terminal of the above embodiment of the present invention as shown in Figure 2.The concrete structure of this network system sees also above-mentioned detailed description to multi-media radio router and multi-media radio router receiving terminal, does not repeat them here.
Network system according to the foregoing description, owing to have the multi-media radio router that the DVD signal that obtained by a DVD player and the cable TV signal that is obtained by a cable television can be carried out radio broadcasting within the family, and have the multi-media signal that can be used for receiving radio broadcasting in the family, and will offer the multi-media radio router receiving terminal of playback equipment after this multimedia signal dispose, realized providing multi-media signal to a plurality of playback equipments by a signal source.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a multi-media radio router is characterized in that, comprising:
Simulation audio/video signal processing module has DVD signal receiving end, and the simulation audio/video signal processing that described simulation audio/video signal processing module is used for receiving from described DVD signal receiving end becomes first to transmit code stream;
The cable TV signal processing module has cable TV signal and receives terminal, and the cable TV signal that described cable TV signal processing module is used for receiving from described cable TV signal reception terminal is processed into second and transmits code stream;
First encoder is connected with described cable TV signal processing module with described analog video signal processing module respectively, is used for that the described first transmission code stream and described second is transmitted code stream and carries out scrambling respectively and be encoded to the real time transport protocol bag;
Wireless transmitter module is connected with described first encoder, is used for described real time transport protocol bag is carried out wireless transmission.
2. multi-media radio router according to claim 1, it is characterized in that, described simulation audio/video signal processing module comprises the analog to digital converter that is provided with described DVD signal receiving end, and be connected with described analog to digital converter, be used for signal to the output of described analog to digital converter and carry out compressed encoding to obtain described first second encoder that transmits code stream.
3. multi-media radio router according to claim 2 is characterized in that, described second encoder is H.264 encoder or mpeg 2 encoder.
4. multi-media radio router according to claim 1, it is characterized in that, described cable TV signal processing module comprises and is provided with the TV tuner that described cable TV signal receives terminal, and is connected with described TV tuner, be used for the signal of described TV tuner output is carried out demodulation to obtain the cable TV demodulator of the described second transmission code stream.
5. multi-media radio router according to claim 1 is characterized in that, described wireless transmitter module comprises Wi-Fi router and the antenna that is connected with described Wi-Fi router.
6. according to arbitrary described multi-media radio router in the claim 1 to 5, it is characterized in that, also comprise:
The cable modem module is connected with described wireless transmitter module; Correspondingly, also comprise:
The bi-directional RF splitter, described bi-directional RF splitter comprises local side, first user side and second user side, described local side is connected with cable television, described first user side is connected with described cable TV signal processing module, and described second user side is connected with described cable modem module.
7. according to arbitrary described multi-media radio router in the claim 1 to 5, it is characterized in that, also comprise:
Micro controller module, having the control signal that is used for being connected with described wireless transmitter module receives terminal, is respectively applied for a plurality of control terminals that are connected with described simulation audio/video signal processing module, described cable TV signal processing module and described first encoder, and infrared signal transmission terminal, described micro controller module is used for the control signal that receives from described control signal reception terminal is handled and sent or send by described infrared signal transmission terminal by described a plurality of control terminals.
8. a multi-media radio router receiving terminal is characterized in that, comprising:
Wireless receiving module is used for wireless receiving real time transport protocol bag;
First decoder is connected with described wireless receiving module, is used for described real time transport protocol bag is decoded and the transmission code stream of descrambling for compressing;
Second decoder is connected with described first decoder, and the transmission code stream decoding that is used for described compression is digital audio/video signal;
Digital to analog converter has simulation audio/video signal output terminal, and described digital to analog converter is connected with described second decoder, is used for described digital audio/video conversion of signals for simulation audio/video signal and by described simulation audio/video signal output terminal output.
9. multi-media radio router receiving terminal according to claim 8 is characterized in that, also comprises:
Micro controller module, have infrared control signal and receive terminal, described micro controller module is connected with described wireless receiving module, is used for described wireless receiving module is handled and be sent to the infrared control signal that receives from described infrared control signal reception terminal;
Correspondingly, described wireless receiving module comprises that also the control signal that is connected with described micro controller module receives terminal, and described wireless receiving module also is used for the signal that receives by described control signal reception terminal is carried out wireless transmission.
10. a network system is characterized in that, comprise as the arbitrary described multi-media radio router of claim 1 to 7, and multi-media radio router receiving terminal as claimed in claim 8 or 9.
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Application publication date: 20110302 |