CN101909170B

CN101909170B - Primary and secondary television display method and device

Info

Publication number: CN101909170B
Application number: CN2009100525564A
Authority: CN
Inventors: 林涛
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2009-06-04
Filing date: 2009-06-04
Publication date: 2012-05-23
Anticipated expiration: 2029-06-04
Also published as: CN101909170A

Abstract

The invention discloses a primary and secondary television display method and a primary and secondary television display device. The display device comprises a primary television display screen, a secondary display sender, at least one secondary display receiver and at least one secondary television display screen; the primary television display screen is used for playing video/audio signals from a sender source; the secondary display sender is used for sending the video/audio signals from the sender source to the secondary display receiver; the secondary display receiver is used for receiving the output signals of the secondary display sender and sending the signals to the secondary television display screen; and the secondary television display screen is connected with the secondary display receiver and is used for receiving and playing the output signals of the secondary display receiver. The display device realizes the watching of the same television program in different rooms at home or in work places, and the secondary television display screen is portable and can be placed in any room, so that the convenience to work and life is brought. Besides, the display device also has function expansion property, can realize the functions such as digital photo frames, video cassette recorder and the like, and has wide development and application prospect.

Description

Primary-secondary television display packing and display unit

Technical field

The invention belongs to appliance field, relate to a kind of television display, relate in particular to the primary-secondary television display packing and the display unit that constitute by a mother tv display screen and a plurality of electronic television display screen.

Background technology

Different members in the family hopes that each comfortable different room watches same TV programme.In the office space, also need watch the situation of same TV programme at the not chummery of office floor through regular meeting's appearance.STB or DVD player only connect a fixing tv display screen usually, are placed in some fixedly rooms of residence or office building.In an other room of residence or office building, handle affairs if desired or office, just can not watch TV or DVD program.A plurality of places in residence or office building teleview or the DVD program if desired, just need many STBs or DVD player are installed, and are as shown in Figure 1, and not only cost increases much doubly, and very inconvenient.

Chinese patent 03803956.7 discloses a kind of television system; It comes down to all to be positioned over the tuner of two or more television systems on the mother tv; And electronic television only has playing function; From the ease of use aspect, this does not have too big difference with using two television receivers separately, can not reduce cost yet.Also have at present patent to disclose the tuner that the received television program signal is installed in DPF, thereby constitute a mobile TV terminal, but this apparatus function is single, more and more can not satisfy the needs of development.

Summary of the invention

Technical problem to be solved by this invention is: a kind of display unit and display packing thereof with multi-functional primary-secondary television is provided.

For solving the problems of the technologies described above, the present invention adopts following technical scheme.

A kind of primary-secondary television display unit comprises:

The mother tv display screen is in order to play the video/audio signal from the source of transmission;

Son shows transmitter, in order to sending to sub-display receiver from the video/audio signal in the source of transmission;

At least one sub-display receiver shows the output signal of transmitter and signal sent to the electronic television display screen in order to receive son;

At least one electronic television display screen links to each other with sub-display receiver, in order to receive and to play the output signal of sub-display receiver.

As a kind of preferred version of the present invention; Said son shows that transmitter comprises the signal shunt module that is divided into the A/V signal from the source of transmission equal two paths of signals; Receive the analog digital conversion or the bypass module of one road signal of signal shunt module; Receive the resolution frame per second colour space transformation module of the output signal of analog digital conversion or bypass module; With the video and audio signal of resolution frame per second colour space transformation module output compress and be encoded into video/audio code stream look audio compression and coding module, the wireless or wire transmission sending module that video/audio code stream is sent with wireless or wired mode; Said mother tv display screen receives another road signal from the signal shunt module.

As another kind of preferred version of the present invention; Said sub-display receiver comprises the wireless or wire transmission receiver module of the video/audio code stream that receives wireless or the transmission of wire transmission sending module; Look audio decompression and decoder module to what the video/audio code stream of wireless or wire transmission receiver module output decompressed the video/audio signal that obtains restoring, becomes the form that the most suitable electronic television display screen plays and the format conversion reprocessing and the playing module of output and broadcast with format conversion the video/audio signal that restores.

As another preferred version of the present invention, said mother tv display screen has the A/V signal output port of exporting from the A/V signal in the source of transmission;

Said son shows that transmitter comprises the analog digital conversion or the bypass module of the A/V signal that receives the output of A/V signal output port; Receive the resolution frame per second colour space transformation module of the output signal of analog digital conversion or bypass module; With the video and audio signal of resolution frame per second colour space transformation module output compress and be encoded into video/audio code stream look audio compression and coding module, the wireless or wire transmission sending module that video/audio code stream is sent with wireless or wired mode.

As another preferred version of the present invention, said electronic television display screen has USB port, and said sub-display receiver links to each other with the USB port of electronic television display screen;

Said wireless or wire transmission receiver module can be shown that the wireless or wire transmission transceiver module of transmitted in both directions between the transmitter substitutes at sub-display receiver and son;

Said sub-display receiver also comprises the sub-display receiver power supply generation module of the needed various voltages of each module and power from the sub-display receiver that USB port obtains; Or/and usb host or USB peripheral module; Or/and receive the sub-display receiver control module of user through the input of keyboard, touch-screen, remote control switch; Or/and be used for storing from usb host or USB peripheral module, analog digital conversion or bypass module, resolution frame per second colour space transformation module, look video/audio signal or the video/audio code stream after the compression of the uncompressed of audio compression and coding module, wireless or wire transmission transceiver module, or in needs, send to the content of storage the semiconductor memory and the harddisk memory module of these modules; Said usb host or USB peripheral module be accomplish between USB port and the sub-display receiver control module, the module of the transmitted in both directions of the data-signal between USB port and semiconductor memory and the harddisk memory module, between USB port and wireless or the wire transmission transceiver module and control signal.

As another preferred version of the present invention, said mother tv display screen has USB port, and said son shows that transmitter links to each other with the USB port of mother tv display screen;

Said wireless or wire transmission sending module can be shown that the wireless or wire transmission transceiver module of transmitted in both directions between transmitter and the sub-display receiver substitutes at son;

Said son shows that transmitter comprises that also the son that obtains from USB port shows the son demonstration transmitter power supply generation module of the needed various voltages of each module and power the transmitter; Or/and usb host or USB peripheral module; Or/and receive the son demonstration transmitter control module of user through the input of keyboard, touch-screen, remote control switch; Or/and be used for storing from usb host or USB peripheral module, analog digital conversion or bypass module, resolution frame per second colour space transformation module, look video/audio signal or the video/audio code stream after the compression of the uncompressed of audio compression and coding module, wireless or wire transmission transceiver module, or in needs, send to the content of storage the semiconductor memory and the harddisk memory module of these modules; Said usb host or USB peripheral module be accomplish between USB port and the son demonstration transmitter control module, the module of the transmitted in both directions of the data-signal between USB port and semiconductor memory and the harddisk memory module, between USB port and wireless or the wire transmission transceiver module and control signal.

As another preferred version of the present invention, said primary-secondary television display unit does not have the mother tv display screen, and said son shows that the audio input signal of looking of transmitter is directed to video/audio signal transmission source.

As another preferred version of the present invention, said video/audio signal sends the source and the electronic television display screen all has USB port and HDMI port;

Said son shows that transmitter comprises:

Show transmitter power supply generation module,, produce the power supply that shows the needed various voltages of each module and power in the transmitter in order to obtain the power supply of a 5V from USB port;

HDMI form to YUV420 format conversion module in order to video/audio signal is carried out format conversion, is transformed into the digital video signal of YUV4:2:0 form and the digital audio and video signals of PCM form to the video/audio signal of HDMI form;

H.264 video compression and coding module, in order to according to coding standard H.264 vision signal is carried out 5: 1 to 50: 1 compression, audio signal is not compressed, and becomes video/audio code stream to the vision signal after the compression with unpressed audio-frequency signal coding;

Show transmitter Ethernet transceiver module, in order to the code stream behind the compressed encoding is sent with wired Ethernet transmission means;

Said sub-display receiver comprises:

Display receiver Ethernet transceiver module receives demonstration transmitter Ethernet transceiver module transmitted stream with wired Ethernet transmission means;

H.264 video decompression and decoder module are in order to decompress the video/audio signal that obtains restoring to the H.264 video code flow that receives;

YUV420 form to HDMI format conversion module in order to video/audio signal is carried out format conversion, is transformed into the recovery digital video signal of YUV4:2:0 form and pcm digital audio signal the video/audio signal of HDMI form;

Display receiver power supply generation module in order to obtain the power supply of a 5V from USB port, produces the power supply of the needed various voltages of each module and power in the display receiver.

A kind of primary-secondary television display packing may further comprise the steps:

Step 1, on the mother tv display screen, play from the source of transmission video/audio signal;

Step 2 is carried out with step 1 simultaneously, if video/audio signal is an analog signal, it is carried out analog-to-digital conversion, obtains the digital video-audio signal, otherwise, directly carry out next step;

Step 3 is carried out image resolution ratio conversion and frame per second conversion to digital video/audio signal, makes the image resolution ratio of digital video-audio signal consistent with the requirement of electronic television display screen with frame per second;

Step 4 is compressed and is encoded video/audio signal, and the compression ratio of video is 5: 1 to 50: 1, and the compression ratio of audio frequency is 1: 1 to 10: 1;

Step 5 sends the video/audio code stream after the compression through wireless or wired mode;

Step 6 receives the video/audio code stream that sends out with wireless or wired mode;

Step 7 decompresses to the video/audio code stream that receives, the video/audio signal that obtains restoring;

Step 8 becomes the form of electronic television display screen broadcast to the format conversion of the video/audio signal that restores, and carries out reprocessings such as deblocking effect, color adjustment, border enhancing, exports and play final video/audio signal; Or the video/audio signal that restores is directly exported and is play in the work that is left intact;

Step 9, if many estrades tv display screen is arranged, then to each estrade tv display screen all repeating step three to step 8.

As a kind of preferred version of the present invention; There are being many estrades tv display screen and all electronic television display screens to have under the situation of identical image resolution ratio and frame per second; All electronic television display screens are shared step 1 to step 5, distinguish execution in step six then to step 8.

As another kind of preferred version of the present invention, under the image resolution ratio that many estrades tv display screen and all electronic television display screens are arranged and frame per second situation all inequality, all electronic television display screens are shared step 1 to two, then respectively execution in step three to step 8.

As another preferred version of the present invention; Under the image resolution ratio that many estrades tv display screen and all electronic television display screens are arranged and frame per second situation all inequality; All electronic television display screens are shared step 1 to step 5; Respectively execution in step six is to step 8 then, and conversion makes the image resolution ratio and consistent with the requirement of each the electronic television display screen respectively step of frame per second of digital video-audio signal with frame per second between step 7 and step 8, to increase by an image resolution ratio.

Beneficial effect of the present invention is: the invention solves the problem that can not watch same TV programme at the not chummery of family or office space, and the electronic television display screen is portable, can be placed on any room, for work and life have all brought convenience; In addition, the present invention also has the function expansibility ability, can realize for example function such as DPF, video tape recorder, has development and application prospect widely.

Description of drawings

Do further explain below in conjunction with the accompanying drawing specific embodiments of the invention.

Fig. 1 need install in a plurality of rooms the sketch map of many STBs and TV screen;

Fig. 2 installs in a plurality of rooms the sketch map of a mother tv display screen and a sub-tv display screen;

Fig. 3 does not have the primary-secondary television display unit block diagram of A/V signal output port for the mother tv display screen;

Fig. 4 has the primary-secondary television display unit block diagram of A/V signal output port for the mother tv display screen;

Fig. 5 is the primary-secondary television display unit block diagram that mother tv display screen with USB interface does not have the A/V signal output port;

Fig. 6 is the primary-secondary television display unit block diagram that mother tv display screen with USB interface has the A/V signal output port;

Fig. 7 is the flow chart of the primary-secondary television display packing of embodiment five;

Fig. 8 is the flow chart of the primary-secondary television display packing of embodiment six;

Fig. 9 is the flow chart of the primary-secondary television display packing of embodiment seven;

Figure 10 is the block diagram of the primary-secondary television display unit of embodiment eight;

Figure 11 is the flow chart of the primary-secondary television display packing of embodiment eight;

Figure 12 is the block diagram of the primary-secondary television display unit of embodiment nine;

Figure 13 is the block diagram of the primary-secondary television display unit of embodiment ten;

Figure 14 is the block diagram of the primary-secondary television display unit of embodiment 11;

Figure 15 is the block diagram of the primary-secondary television display unit of embodiment 12.

Embodiment

The present invention proposes a kind of TV pick-up attacnment and method of being made up of a mother tv display screen and one or more electronic television display screen, and the electronic television display screen is portable, can be placed on any room, and is as shown in Figure 2.The input of mother tv display screen is connected with the output in certain transmission source such as wired or wireless mode and STB or DVD player etc., receives video image picture element signal and the audio signal of also playing the source of sending since then.This video and audio signal gets into a son simultaneously and shows transmitter, and it is 5: 1 to 50: 1 data compression that this transmitter carries out compression ratio to the video image picture element signal, and it is 1: 1 to 10: 1 data compression that this transmitter also carries out compression ratio to audio signal.This transmitter then the wireless or wire transmission passage of the bandwidth of the video and audio signal (being commonly referred to code stream) of the low bit rate that is no more than per second 200 megabits after the compression through being no more than per second 200 megabits or Network Transmission to one or more sub-display receivers.Sub-display receiver decompresses to it after receiving code stream, restores video image picture element signal and audio signal and on the electronic television display screen, plays this recovery video and audio signal.The content that the electronic television display screen is play is consistent with the content that the mother tv display screen is play.

Embodiment one

A kind of primary-secondary television display unit comprises: the mother tv display screen, in order to play video/audio signal from the source of transmission; Son shows transmitter, in order to sending to sub-display receiver from the video/audio signal in the source of transmission; At least one sub-display receiver shows the output signal of transmitter and signal sent to the electronic television display screen in order to receive son; At least one electronic television display screen links to each other with sub-display receiver, in order to receive and to play the output signal of sub-display receiver.

Said sub-display receiver comprises the wireless or wire transmission receiver module of the video/audio code stream that receives wireless or the transmission of wire transmission sending module; Look audio decompression and decoder module to what the video/audio code stream of wireless or wire transmission receiver module output decompressed the video/audio signal that obtains restoring, becomes the form that the most suitable electronic television display screen plays and the format conversion reprocessing and the playing module of output and broadcast with format conversion the video/audio signal that restores.

Said son shows that transmitter comprises the signal shunt module that is divided into the A/V signal from the source of transmission equal two paths of signals; Receive the analog digital conversion or the bypass module of one road signal of signal shunt module; Receive the resolution frame per second colour space transformation module of the output signal of analog digital conversion or bypass module; With the video and audio signal of resolution frame per second colour space transformation module output compress and be encoded into video/audio code stream look audio compression and coding module, the wireless or wire transmission sending module that video/audio code stream is sent with wireless or wired mode; Said mother tv display screen receives another road signal from the signal shunt module.

By shown in Figure 3, whole primary-secondary television display unit is made up of mother tv display screen, electronic television display screen and following 8 modules:

The signal shunt module: be divided into equal two-way to audio frequency (A/V) signal of looking from transmission sources such as STB or DVD, the one tunnel is sent to the mother tv display screen, and analog digital conversion or bypass module are sent in another road;

Analog digital conversion or bypass module: video/audio signal converts the digital video-audio signal into or the digital video-audio signal is passed through in bypass simulating;

Resolution frame per second colour space transformation module: digital video signal is carried out image resolution ratio conversion and frame per second conversion, make the image resolution ratio after the conversion consistent with the requirement of electronic television display screen with frame per second; Digital video signal is carried out necessary colour space transformation to meet the requirement of video coding;

Look audio compression and coding module: video and audio signal is compressed and is encoded into video/audio code stream; The compression ratio of video is generally 5: 1 to 50: 1, and the compression ratio of audio frequency is generally 1: 1 to 10: 1, does not wherein just carry out any compression at 1: 1;

Wireless or wire transmission sending module: send the code stream behind the compressed encoding through wireless or wired mode;

Wireless or wire transmission receiver module: receive wireless or wire transmission sending module transmitted stream with wireless or wired mode;

Look audio decompression and decoder module: the video/audio code stream to receiving decompresses, the video/audio signal that obtains restoring.

Format conversion reprocessing and playing module: convert the form that restores video/audio signal (like image resolution ratio, frame per second, color space, interlacing-line by line, audio frequency employing rate etc.) to form that the most suitable electronic television display screen is play; Carry out reprocessings such as deblocking effect, color adjustment, border enhancing, and export and play final video/audio signal; This module also maybe not need be done the work of any format conversion and reprocessing, directly exports and play the recovery video/audio signal.

More than in 8 modules, preceding 5 modules constitute son and show transmitter, back 3 modules constitute sub-display receiver.

Embodiment two

The difference of present embodiment and embodiment one is that said mother tv display screen has the A/V signal output port of exporting from the A/V signal in the source of transmission; Said son shows that transmitter comprises the analog digital conversion or the bypass module of the A/V signal that receives the output of A/V signal output port; Receive the resolution frame per second colour space transformation module of the output signal of analog digital conversion or bypass module; With the video and audio signal of resolution frame per second colour space transformation module output compress and be encoded into video/audio code stream look audio compression and coding module, the wireless or wire transmission sending module that video/audio code stream is sent with wireless or wired mode.

If the mother tv display screen possesses the audio frequency of looking (A/V) signal output port, primary-secondary television display unit then of the present invention also can have another kind of block diagram as shown in Figure 4.In this case, the mother tv display screen has played the signal by-passing, and therefore son shows in the transmitter no longer needs the signal shunt module.The effect of other modules and the module among Fig. 3 are in full accord among Fig. 4.

Embodiment three

Son in the above primary-secondary television display unit shows transmitter and sub-display receiver; Can link to each other with the USB port of mother tv display screen respectively with the electronic television display screen; Provide son to show transmitter and the required working power of sub-display receiver; While built-in optional usb host (host) or USB peripheral hardware (device) module, control module and non-volatile memory module, expansion and the function of adding other are like Fig. 5 and shown in Figure 6.In the primary-secondary television display unit that links to each other with USB port; Except there being son to show transmitter power supply generation module and sub-display receiver power supply generation module; Show that to son transmitter and sub-display receiver provide outside the power supply of required various voltages, can also have following optional module respectively:

Sub-display receiver control module: receive the input of user through keyboard, touch-screen, remote control switch; Also can receive from the input of USB port, keep watch on the current operation conditions of each module in the sub-display receiver through usb host in the sub-display receiver or USB peripheral module; Set the operational factor of each module in the sub-display receiver according to these inputs and current operation conditions, control the operation of each module in the sub-display receiver, make each module be in optimal operational condition; Every other module in the sub-display receiver among this module and Fig. 6 links to each other, and controls the operation of these modules;

Usb host in the sub-display receiver or USB peripheral module: accomplish between USB port and the sub-display receiver control module, the data-signal between USB port and semiconductor memory and the harddisk memory module, between USB port and wireless or the wire transmission transceiver module and the transmitted in both directions of control signal; Include but not limited to 1) be sent to sub-display receiver control module to part video/audio signal and control signal from the electronic television display screen on the USB port; And and then be transferred to other modules in the sub-display receiver, perhaps under the control of sub-display receiver control module, directly be transferred to semiconductor memory and harddisk memory module or wireless or wire transmission transceiver module; 2) the part video/audio signal and the control signal, particularly semiconductor memory of each module and the part video/audio in the harddisk memory module are transferred to the electronic television display screen on the USB port in the bundle display receiver; 3) be sent to son demonstration transmitter and mother tv display screen to part video/audio signal and control signal through wireless or wire transmission transceiver module from the electronic television display screen on the USB port; 4) being sent to the electronic television display screen on the USB port through part video/audio signal and control signal from son demonstration transmitter and mother tv display screen wireless or that the wire transmission transceiver module receives.From in essence; Use USB port and usb host or USB peripheral module can between mother tv display screen and electronic television display screen, realize the transmission of two-way part video/audio signal; But transmission rate is more much smaller than using the A/V port, therefore only is used for transmitting partial video signals such as literal, menu, still frame usually;

Sub-display receiver power supply generation module: obtain the power supply of a 5V from USB port, produce the power supply of the needed various voltages of each module and power in the sub-display receiver;

Semiconductor memory in the sub-display receiver and harddisk memory module: be used for storing from usb host or USB peripheral module, look video/audio signal or the video/audio code stream after the compression of the uncompressed of audio decompression and decoder module, wireless or wire transmission transceiver module; In needs, send to these modules and other modules to the content of storage again;

Wireless or wire transmission transceiver module in the sub-display receiver: show the video/audio signal of transmitted in both directions uncompressed between the transmitter, video/audio code stream, the control signal after the compression at sub-display receiver and son.

Present embodiment and foregoing embodiment different be in, said electronic television display screen has USB port, said sub-display receiver links to each other with the USB port of electronic television display screen; Said wireless or wire transmission receiver module can be shown that the wireless or wire transmission transceiver module of transmitted in both directions between the transmitter substitutes at sub-display receiver and son; Said sub-display receiver also comprises the sub-display receiver power supply generation module of the needed various voltages of each module and power from the sub-display receiver that USB port obtains; Or/and usb host or USB peripheral module; Or/and receive the sub-display receiver control module of user through the input of keyboard, touch-screen, remote control switch; Or/and be used for storing from usb host or USB peripheral module, analog digital conversion or bypass module, resolution frame per second colour space transformation module, look video/audio signal or the video/audio code stream after the compression of the uncompressed of audio compression and coding module, wireless or wire transmission transceiver module, or in needs, send to the content of storage the semiconductor memory and the harddisk memory module of these modules; Said usb host or USB peripheral module be accomplish between USB port and the sub-display receiver control module, the module of the transmitted in both directions of the data-signal between USB port and semiconductor memory and the harddisk memory module, between USB port and wireless or the wire transmission transceiver module and control signal.

Embodiment four

The difference of present embodiment and embodiment noted earlier three is in the primary-secondary television display unit that links to each other with USB port, can also have following optional module like Fig. 5, shown in 6:

Son shows the transmitter control module: receive the input of user through keyboard, touch-screen, remote control switch; Also can receive from USB port and show usb host or the input of USB peripheral module in the transmitter, keep watch on the current operation conditions that son shows each module in the transmitter through son; Set the operational factor that son shows each module in the transmitter according to these inputs and current operation conditions, control shows the operation of each module in the transmitter, makes each module be in optimal operational condition; Son among this module and Fig. 6 shows that the every other module in the transmitter links to each other, and controls the operation of these modules;

Son shows usb host or the USB peripheral module in the transmitter: accomplish between USB port and the son demonstration transmitter control module, the data-signal between USB port and semiconductor memory and the harddisk memory module, between USB port and wireless or the wire transmission transceiver module and the transmitted in both directions of control signal; Include but not limited to 1) be sent to son demonstration transmitter control module to part video/audio signal and control signal from the mother tv display screen on the USB port; And and then be transferred to son and show other modules in the transmitter, perhaps under son shows the control of transmitter control module, directly be transferred to perhaps wireless or wire transmission transceiver module of semiconductor memory and harddisk memory module; 2) bundle shows that part video/audio signal and control signal, particularly semiconductor memory and the part video/audio in the harddisk memory module of each module in the transmitter are transferred to the mother tv display screen on the USB port; 3) be sent to sub-display receiver and electronic television display screen to part video/audio signal and control signal through wireless or wire transmission transceiver module from the mother tv display screen on the USB port; 4) being sent to the mother tv display screen on the USB port through part video/audio signal and control signal from sub-display receiver and electronic television display screen wireless or that the wire transmission transceiver module receives; From in essence; Use USB port and usb host or USB peripheral module can between mother tv display screen and electronic television display screen, realize the transmission of two-way part video/audio signal; But transmission rate is more much smaller than using the A/V port, therefore only is used for transmitting partial video signals such as literal, menu, still frame usually;

Son shows transmitter power supply generation module: obtain the power supply of a 5V from USB port, produce the power supply that son shows the needed various voltages of each module and power in the transmitter.

Son shows semiconductor memory and the harddisk memory module in the transmitter: be used for storing from usb host or USB peripheral module, analog digital conversion or bypass module, resolution frame per second colour space transformation module, look audio compression and coding module, wireless or wire transmission transceiver module uncompressed video/audio signal or compress after video/audio code stream; In needs, send to these modules or other modules to the content of storage again;

Son shows the wireless or wire transmission transceiver module in the transmitter: show the video/audio signal of transmitted in both directions uncompressed between transmitter and the sub-display receiver, video/audio code stream, the control signal after the compression at son.

Said mother tv display screen has USB port, and said son shows that transmitter links to each other with the USB port of mother tv display screen; Said wireless or wire transmission sending module can be shown that the wireless or wire transmission transceiver module of transmitted in both directions between transmitter and the sub-display receiver substitutes at son; Said son shows that transmitter comprises that also the son that obtains from USB port shows the son demonstration transmitter power supply generation module of the needed various voltages of each module and power the transmitter; Or/and usb host or USB peripheral module; Or/and receive the son demonstration transmitter control module of user through the input of keyboard, touch-screen, remote control switch; Or/and be used for storing from usb host or USB peripheral module, analog digital conversion or bypass module, resolution frame per second colour space transformation module, look video/audio signal or the video/audio code stream after the compression of the uncompressed of audio compression and coding module, wireless or wire transmission transceiver module, or in needs, send to the content of storage the semiconductor memory and the harddisk memory module of these modules; Said usb host or USB peripheral module be accomplish between USB port and the son demonstration transmitter control module, the module of the transmitted in both directions of the data-signal between USB port and semiconductor memory and the harddisk memory module, between USB port and wireless or the wire transmission transceiver module and control signal.

Embodiment five

The display packing of primary-secondary television display unit, as shown in Figure 7, may further comprise the steps:

Step 2 is carried out with step 1 simultaneously, if video/audio signal is an analog signal, analog digital conversion or bypass module carry out analog-to-digital conversion to it, obtain the digital video-audio signal, otherwise, directly carry out next step;

Step 3, the resolution frame per second colour space transformation module of son demonstration transmitter is carried out image resolution ratio conversion and frame per second conversion to digital video/audio signal, makes the image resolution ratio of digital video-audio signal consistent with the requirement of electronic television display screen with frame per second;

Step 4 is looked audio compression and coding module and video/audio signal is compressed and is encoded, and the compression ratio of video is generally 5: 1 to 50: 1, and the compression ratio of audio frequency is generally 1: 1 to 10: 1; Wherein not compression just in 1: 1;

Step 5, wireless or wire transmission sending module sends the video/audio code stream after compressing through wireless or wired mode;

Step 6, the wireless or wire transmission receiver module in the sub-display receiver receives video/audio code stream wireless or that the wire transmission sending module sends with wireless or wired mode;

Step 7 is looked audio decompression and decoder module the video/audio code stream that receives is decompressed, the video/audio signal that obtains restoring;

Step 8, the format conversion reprocessing becomes the form of electronic television display screen broadcast to the format conversion of the video/audio signal that restores with playing module, and carries out reprocessings such as deblocking effect, color adjustment, border enhancing, exports and play final video/audio signal; Or format conversion reprocessing and the playing module directly output and play the video/audio signal that restores of work that is left intact;

Having many estrades tv display screen and all electronic television display screens to have under the situation of identical image resolution ratio and frame per second, all electronic television display screens are shared step 1 to step 5, distinguish execution in step six then to step 8.

The topmost difference of display packing of mother tv display screen and electronic television display screen is that son shows that transmitter carries out compression to a certain degree to original video/audio signal earlier in the above step; Reducing required signal transmission bandwidth, thereby can be transferred to longer-distance portable electronic television display screen to video/audio signal with wireless or wired mode of very low cost.As the special case of above general step, also possibly have only the electronic television display screen and do not have the mother tv display screen.

Embodiment six

Second kind of display packing of primary-secondary television display unit of the present invention is as shown in Figure 8, and the method and the difference of last method are that different electronic television display screens shares steps such as compression and the coding of image resolution ratio frame per second colour space transformation, video and audio signal, wireless or wired transmission.That is to say that under the image resolution ratio that many estrades tv display screen and all electronic television display screens are arranged and frame per second situation all inequality, all electronic television display screens are shared step 1 to two, then respectively execution in step three to step 8.

Embodiment seven

In the method for Fig. 8, all electronic television display screens are all shared a video/audio code stream after the compression.In order on the electronic television display screen of different resolution and frame per second, to play, the recovery video image after the decompression must pass through image resolution ratio conversion and frame per second conversion.Like this, vision signal possibly make picture quality slightly reduce through twice image resolution ratio conversion of compression and decompression and frame per second conversion.If all electronic television display screens have identical resolution and frame per second, the third display packing of primary-secondary television display unit then of the present invention is promptly as shown in Figure 9, need not pass through image resolution ratio conversion and frame per second conversion before on each electronic television display screen, playing; Present embodiment and embodiment five and sixs' difference is; Under the image resolution ratio that many estrades tv display screen and all electronic television display screens are arranged and frame per second situation all inequality; All electronic television display screens are shared step 1 to step 5; Respectively execution in step six is to step 8 then, and conversion makes the image resolution ratio and consistent with the requirement of each the electronic television display screen respectively step of frame per second of digital video-audio signal with frame per second between step 7 and step 8, to increase by an image resolution ratio.

Embodiment eight

The mother tv display screen is supported 14 kinds of resolution and frame per second in the present embodiment, and the electronic television display screen is supported two kinds of resolution and frame per second, and coding and decoding video uses H.264 standard, and the flow chart of primary-secondary television display packing is shown in figure 10 in the present embodiment.In the present embodiment, the resolution of the raw video signal that the mother tv display screen is shown and frame per second can be any one in the following table 1, and wherein preceding 12 kinds are also referred to as high definition resolution usually, and back 2 kinds are also referred to as SD resolution usually.In the present embodiment, the resolution of electronic television display screen and frame per second can be a kind of among 640x480x30Hz (being also referred to as VGA resolution usually) or the 352x288x25Hz (being also referred to as CIF resolution usually).In the present embodiment, HD video is a digital signal, and the SD video is an analog signal, and audio frequency all is a digital signal.

Therefore, the step of the primary-secondary television Display Technique method of present embodiment is following among Figure 10:

Step 1, on the mother tv display screen, play from the source of transmission video/audio signal, its resolution and frame per second are as shown in table 1;

Step 2 is carried out with step 1, for the SD vision signal simultaneously; It is carried out the analog digital conversion, obtain digital video signal, the highest conversion sample frequency of analog digital conversion is 27MHz; For other video/audio signals, needn't carry out the analog digital conversion, directly carry out next step;

Step 3; Digital video signal is carried out image resolution ratio conversion and frame per second conversion; Make the image resolution ratio of digital video signal consistent with the image resolution ratio and the frame per second (640x480x30Hz or 352x288x25Hz) of electronic television display screen with frame per second; Be transformed into the color space of YUV4:2:0 form to digital video signal, on average each pixel is 12 bits;

Step 4 uses the mode of H.264 intraframe coding to compress to vision signal, audio signal is not compressed, and become video/audio code stream to the vision signal after the compression with unpressed audio-frequency signal coding; The bit rate of VGA before the compression or the vision signal of CIF is respectively 640x480x30x12=110592000=110.6Mbps (mbit/) and 352x288x25x12=30412800=30.5Mbps; After 5: 1 compression, bit rate is reduced to 22.2Mbps and 6.1Mbps respectively; The code stream of such bit rate just can be used 802.11n, and the wireless transmission standards of perhaps 802.11g, even 802.11b is sent to the electronic television display screen;

Step 5, through wireless 802.11n, the mode of perhaps 802.11g, even 802.11b sends the code stream behind the compressed encoding;

Step 6, electronic television display screen are with wireless 802.11n, and the mode of perhaps 802.11g, even 802.11b receives the step 5 transmitted stream;

H.264, step 7 decompresses to the video code flow that receives, the vision signal that obtains restoring;

Step 8 is to play the video/audio signal that restores on the electronic television display screen of 640x480x30Hz or 352x288x25Hz in resolution and frame per second;

Step 9, if many estrades display is arranged, then to each estrade display all repeating step six to step 8.

14 kinds of resolution of the raw video signal of table 1. mother tv display screen and frame per second

The primary-secondary television display unit is shown in figure 11 in the present embodiment, and whole device is made up of mother tv display screen, electronic television display screen and following 8 modules:

The signal shunt module: be divided into equal two-way to the high resolution video and audio signal from transmission sources such as STB or DVD, the one tunnel is sent to the mother tv display screen, and analog-digital conversion or bypass module are sent in another road; For the SD video/audio signal; Because possessing SD, the mother tv display screen looks audio frequency (A/V) signal output port; So the SD video/audio signal from transmission sources such as STB or DVD directly gets into the mother tv display screen, look audio frequency (A/V) signal output port through the SD of mother tv display screen then and insert the SD A/V input port that son shows transmitter;

Analog digital conversion or bypass module: convert simulation SD vision signal into digital SD vision signal, bypass is through high-definition digital video signal and digital audio and video signals;

Resolution frame per second colour space transformation module: the digital video signal of 14 kinds of resolution shown in the his-and-hers watches 1 and frame per second carries out image resolution ratio conversion and frame per second conversion; The image resolution ratio that makes the digital video signal after the conversion and frame per second and electronic television display screen image resolution ratio and frame per second (640x480x30Hz or 352x288x25Hz) consistent; Be transformed into the color space of YUV4:2:0 form to digital video signal, on average each pixel is 12 bits;

Video compression and coding module: use H.264 the intraframe coding standard that vision signal is carried out 5: 1 compression, audio signal is not compressed, and becomes video/audio code stream to the vision signal after the compression with unpressed audio-frequency signal coding;

802.11b/g/n wireless transmission sending module: send the code stream behind the compressed encoding through wireless mode.

802.11b/g/n wireless transmission receiver module: receive 802.11b/g/n wireless transmission sending module transmitted stream with wireless mode.

Video decompression and decoder module: the H.264 video code flow to receiving decompresses, the video/audio signal that obtains restoring.

Format conversion reprocessing and playing module: convert the form of recovery video signal to RGB4:4:4 form that the most suitable electronic television display screen is play from YUV4:2:0; Carry out reprocessings such as deblocking effect, color adjustment, border enhancing, and export and play final video/audio signal.

Embodiment nine

The block diagram of the primary-secondary television display unit of present embodiment is shown in figure 12.In the present embodiment, the mother tv display screen has the analog video output of YPrPb form and the analogue audio frequency output of dual track.These simulation video/audio signals are directly inputted to the simulation of son demonstration transmitter and look audio input port.In the present embodiment, the semiconductor memory Flash module of a 4GB is arranged in the sub-display receiver, be mainly used in the function that realizes DPF.

Block diagram by Figure 12 is visible, and whole device is made up of mother tv display screen, electronic television display screen and following modules:

Analog digital modular converter: convert the simulated audio signal of the analog video signal of YPrPb form and dual track into the digital video-audio signal.

Resolution frame per second colour space transformation module: digital video signal is carried out image resolution ratio conversion and frame per second conversion; Make the image resolution ratio of digital video signal consistent with the requirement of electronic television display screen with frame per second; To color space is the sub sampling that the digital video signal of YPrPb form carries out colour space transformation and chromatic component, is transformed into the digital video signal that color space is the YUV4:2:0 form.

H.264 video compression and coding module: use H.264 that coding standard carries out 5: 1 to 50: 1 compression to vision signal, audio signal is not compressed, and becomes video/audio code stream to the vision signal after the compression with unpressed audio-frequency signal coding.

H.264 video decompression and decoder module: the H.264 video code flow to receiving decompresses, the video/audio signal that obtains restoring.

Sub-display receiver control module: receive the input of user, keep watch on the current operation conditions of each module in the sub-display receiver through touch-screen.Set the operational factor of each module in the sub-display receiver according to these inputs and current operation conditions, control the operation of each module in the sub-display receiver, make each module be in optimal operational condition.This module links to each other with every other module in the sub-display receiver, and controls the operation of these modules.One of its controlled function is the semiconductor memory Flash module that is input to from the outside various images or video clip file through USB port and USB peripheral module 4GB; Then when not playing TV; Can be under the input control of user through touch-screen, bundle display receiver and electronic television display screen switch to " DPF " pattern.Under this pattern, sub-display receiver is play according to user's selection and is stored in image or the video clip in the Flash module, and sub-display receiver and electronic television LCDs are just formed a DPF.

USB peripheral module in the sub-display receiver: accomplish between USB port and the sub-display receiver control module, the data-signal between USB port and the semiconductor memory Flash module, between USB port and the 802.11b/g/n wireless transmission receiver module and the transmitted in both directions of control signal, include but not limited to 1) under the control of sub-display receiver control module, directly being transferred to semiconductor memory Flash module from external image on the USB port or video clip; 2) the part video/audio in the semiconductor memory Flash module is transferred to the electronic television display screen on the USB port in the bundle display receiver.

Sub-display receiver power supply generation module: obtain the power supply of a 5V from USB port, produce the power supply of the needed various voltages of each module and power in the sub-display receiver.

Semiconductor memory Flash module in the sub-display receiver: be used for storing from USB peripheral module, the H.264 video/audio signal of the uncompressed of video decompression and decoder module, 802.11b/g/n wireless transmission receiver module or the video/audio code stream after the compression; In needs, send to these modules and other modules to the content of storage again.

More than in 12 modules, preceding 5 modules constitute son and show transmitter, back 7 modules constitute sub-display receiver.Sub-display receiver and electronic television LCDs except being operated in the primary-secondary television display mode, also can be operated in independently DPF pattern.

Embodiment ten

The block diagram of the primary-secondary television display unit of present embodiment is shown in figure 13.In the present embodiment, son shows the harddisk memory module that is equipped with a 500GB in the transmitter, is mainly used in the function that realizes HD recording.Visible by Figure 13, whole device is made up of mother tv display screen, electronic television display screen and following modules:

Analog digital conversion or bypass module: video/audio signal converts the digital video-audio signal into or the digital video-audio signal is passed through in bypass simulating.

Resolution frame per second colour space transformation module: digital video signal is carried out image resolution ratio conversion and frame per second conversion, make the image resolution ratio after the conversion consistent with the requirement of electronic television display screen with frame per second; Be transformed into the color space of YUV4:2:0 form to digital video signal, to meet the requirement of video coding.

Son shows the transmitter control module: receive the input of user through remote control switch, keep watch on the current operation conditions that son shows each module in the transmitter.Set the operational factor that son shows each module in the transmitter according to these inputs and current operation conditions, control shows the operation of each module in the transmitter, makes each module be in optimal operational condition.This module shows that with son the every other module in the transmitter links to each other.And control the operation of these modules.One of its controlled function is temporarily to be deposited into the audio-video code stream of H.264 video compression and coding module output in the harddisk memory module of 500GB; From the harddisk memory module, read again through one period regular time (such as one hour) or unfixed time (after some days); Be sent to 802.11b/g/n wireless transmission sending module; Send to sub-display receiver to code stream through wireless mode; On the electronic television display screen, play then, so just realized the function of HD recording with the time-delay broadcast.The input that the mother tv display screen is received in A/V port output that also can the bundle display receiver again is in the content of playing on the mother tv display screen under recording.

Son shows the harddisk memory module of the 500GB in the transmitter: be used for storing from analog-digital conversion or bypass module, resolution conversion, frame per second conversion and colour space transformation module or the H.264 video/audio signal of the uncompressed of video compression and coding module or the video/audio code stream after the compression; In needs, read the content of storage, other modules of delivering in the son demonstration transmitter are handled accordingly again.When realizing the HD recording function, this module stores is the output code flow of video compression and coding module H.264, fixes or after the unfixed time, delivers to 802.11b/g/n wireless transmission sending module to code stream again through one section.

Sub-display receiver power supply generation module: obtain the power supply of a 5V from USB port, produce the power supply of the needed various voltages of each module and power in the sub-display receiver

More than in 11 modules, preceding 7 modules constitute son and show transmitter, back 4 modules constitute sub-display receiver.Its neutron shows that transmitter control module and son show that the harddisk memory module of the 500GB in the transmitter is to realize the key modules of HD recording function.

Embodiment 11

Present embodiment is not have the mother tv display screen and have only son to show the primary-secondary television display unit of transmitter, sub-display receiver and electronic television display screen, and its block diagram is shown in figure 14.In the present embodiment; Son show transmitter to look audio frequency (A/V) input signal be directly from STB; Or DVD; Or video/audio signal such as game machine send source (being called for short the A/V signal source) look audio frequency (A/V) output signal, promptly son show transmitter the A/V input port directly and STB, or the A/V output port of DVD links to each other.Simultaneously, son shows the also direct and STB of the USB port of transmitter, or the USB port of DVD links to each other.The difference of present embodiment and embodiment four is; Present embodiment is replaced as " mother tv display screen " " STB or video/audio signal sources such as DVD player or game machine (being called for short the A/V signal source) "; In addition, the function of corresponding module is in full accord with effect among the function of all modules and effect and the embodiment four.

Embodiment 12

The block diagram of the primary-secondary television display unit of present embodiment, shown in figure 15.In the present embodiment; There is not the mother tv display screen; Son shows that audio frequency (A/V) input signal of looking of transmitter is exactly the standard HDMI output signal that directly sends source (being called for short the A/V signal source) from video/audio signals such as STB or DVD player or game machines, and promptly son shows that the HDMI input socket of transmitter directly is inserted on the HDMI accessory power outlet of A/V signal source.Simultaneously, son shows that the USB socket of transmitter also directly is inserted on the USB socket of A/V signal source.In the present embodiment because there is not the mother tv display screen, so electronic television display screen, son show that transmitter, sub-display receiver can abbreviate tv display screen as, show transmitter, display receiver.The video/audio signal of display receiver output also is the HDMI output signal of standard, and the HDMI output socket of display receiver directly is inserted on the HDMI input socket of TV display screen (being the electronic television display screen).The USB socket of display receiver then directly is inserted on the USB socket of TV display screen (being the electronic television display screen).The function of each module is following in the present embodiment:

Show transmitter power supply generation module: obtain the power supply of a 5V from USB port, produce the power supply that shows the needed various voltages of each module and power in the transmitter.

HDMI form to YUV420 format conversion module: video/audio signal is carried out format conversion, be transformed into the video/audio signal of HDMI form the digital video signal and the pcm digital audio signal of YUV4:2:0 form.

Show transmitter Ethernet transceiver module: send the code stream behind the compressed encoding with wired Ethernet transmission means; Also various data of transmitted in both directions and control signal between transmitter and the display receiver can shown.

Display receiver Ethernet transceiver module: receive demonstration transmitter Ethernet transceiver module transmitted stream with wired Ethernet transmission means; Also can and show various data of transmitted in both directions and control signal between the transmitter at display receiver.

YUV420 form to HDMI format conversion module: video/audio signal is carried out format conversion, be transformed into the recovery digital video signal of YUV4:2:0 form and pcm digital audio signal the video/audio signal of HDMI form.

Display receiver power supply generation module: obtain the power supply of a 5V from USB port, produce the power supply of the needed various voltages of each module and power in the display receiver.

More than in 8 modules, preceding 4 modules constitute and show transmitter, back 4 modules constitute display receiver.Show and use common ethernet line to link to each other between transmitter and the display receiver.The display receiver of the demonstration transmitter of band HDMI plug, band HDMI plug has been realized complete high-definition multimedia transfer function with the common ethernet line that is connected the two.

The invention solves the problem that to watch same TV programme at the not chummery of family or office space, and the electronic television display screen is portable, can be placed on any room, for work and life have all brought convenience; In addition, the present invention also has the function expansibility ability, can realize for example function such as DPF, video tape recorder, has development and application prospect widely.

Here description of the invention and application is illustrative, is not to want with scope restriction of the present invention in the above-described embodiments.Here the distortion of the embodiment that is disclosed and change are possible, and the replacement of embodiment is known with the various parts of equivalence for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present invention or substantive characteristics, and the present invention can be with other forms, structure, layout, ratio, and realize with other elements, material and parts.

Claims

1. primary-secondary television display unit, it is characterized in that: said display unit comprises:

At least one electronic television display screen links to each other with sub-display receiver, in order to receive and to play the output signal of sub-display receiver;

2. primary-secondary television display unit according to claim 1 is characterized in that:

Said mother tv display screen has USB port, and said son shows that transmitter links to each other with the USB port of mother tv display screen;

Said son shows that transmitter comprises that also the son that obtains from USB port shows the son demonstration transmitter power supply generation module of the needed various voltages of each module and power the transmitter; With usb host or USB peripheral module; Show the transmitter control module or/and receive the son of user through the input of keyboard, touch-screen, remote control switch, or/and be used for storing from usb host or USB peripheral module, analog digital conversion or bypass module, resolution frame per second colour space transformation module, look video/audio signal or the semiconductor memory and the harddisk memory module of the video/audio code stream after the compression of the uncompressed of audio compression and coding module, wireless or wire transmission transceiver module; Said usb host or USB peripheral module be accomplish between USB port and the son demonstration transmitter control module, the module of the transmitted in both directions of the data-signal between USB port and semiconductor memory and the harddisk memory module, between USB port and wireless or the wire transmission transceiver module and control signal.

3. primary-secondary television display unit according to claim 1 is characterized in that:

4. primary-secondary television display unit according to claim 3 is characterized in that:

Said electronic television display screen has USB port, and said sub-display receiver links to each other with the USB port of electronic television display screen;

Said sub-display receiver also comprises the sub-display receiver power supply generation module of the needed various voltages of each module and power from the sub-display receiver that USB port obtains; With usb host or USB peripheral module; Or/and receive the sub-display receiver control module of user, or/and be used for storing from usb host or USB peripheral module, analog digital conversion or bypass module, resolution frame per second colour space transformation module, look video/audio signal or the semiconductor memory and the harddisk memory module of the video/audio code stream after the compression of the uncompressed of audio compression and coding module, wireless or wire transmission transceiver module through the input of keyboard, touch-screen, remote control switch; Said usb host or USB peripheral module be accomplish between USB port and the sub-display receiver control module, the module of the transmitted in both directions of the data-signal between USB port and semiconductor memory and the harddisk memory module, between USB port and wireless or the wire transmission transceiver module and control signal.

5. a primary-secondary television display unit is characterized in that, said display unit comprises:

Said mother tv display screen has the A/V signal output port of exporting from the A/V signal in the source of transmission;

6. primary-secondary television display unit according to claim 5 is characterized in that:

7. primary-secondary television display unit according to claim 5 is characterized in that:

8. primary-secondary television display unit according to claim 7 is characterized in that:

9. a primary-secondary television display unit is characterized in that, said display unit comprises:

Said primary-secondary television display unit does not have the mother tv display screen, and said son shows that the audio input signal of looking of transmitter is directed to video/audio signal transmission source;

Said video/audio signal sends the source and the electronic television display screen all has USB port and HDMI port;

Said son shows that transmitter comprises:

HDMI form to YUV4:2:0 format conversion module in order to video/audio signal is carried out format conversion, is transformed into the digital video signal of YUV4:2:0 form and the digital audio and video signals of PCM form to the video/audio signal of HDMI form;

Said sub-display receiver comprises:

YUV4:2:0 form to HDMI format conversion module in order to video/audio signal is carried out format conversion, is transformed into the recovery digital video signal of YUV4:2:0 form and pcm digital audio signal the video/audio signal of HDMI form;

10. primary-secondary television display packing is characterized in that: may further comprise the steps:

Step 8 becomes the form of electronic television display screen broadcast to the format conversion of the video/audio signal that restores, and carries out deblocking effect, color adjustment, border enhancement post-processing, exports and play final video/audio signal; Or the video/audio signal that restores is directly exported and is play in the work that is left intact;

11. primary-secondary television display packing according to claim 10; It is characterized in that: having many estrades tv display screen and all electronic television display screens to have under the situation of identical image resolution ratio and frame per second; All electronic television display screens are shared step 1 to step 5, distinguish execution in step six then to step 8.

12. primary-secondary television display packing according to claim 10; It is characterized in that: under the image resolution ratio that many estrades tv display screen and all electronic television display screens are arranged and frame per second situation all inequality; All electronic television display screens are shared step 1 to two, distinguish execution in step three then to step 8.