CN1402482A - Audio and video teaching material recording and playback system and method - Google Patents
Audio and video teaching material recording and playback system and method Download PDFInfo
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- CN1402482A CN1402482A CN 02141324 CN02141324A CN1402482A CN 1402482 A CN1402482 A CN 1402482A CN 02141324 CN02141324 CN 02141324 CN 02141324 A CN02141324 A CN 02141324A CN 1402482 A CN1402482 A CN 1402482A
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Abstract
The system can send web pages of the teaching material, the operation environment and the teaching actions, and their record (if the sending end is provided with CCD and microphone) for people to learn. The images on the screen and the sound from the speaker are picked up at the sending end to form the multi-media recorders. With being received at the received end, the multiple image and sound information are integrated at the multiple media file (synchronous recording). Then, the multiple media file can be play back directly (synchronous playing back). Thus, the unique file format is used so that the multiple media file can be played back at the receiving end without delay.
Description
Technical field
The present invention relates to the network audio-video communications, particularly a kind of audio-visual teaching material manufacturing-broadcasting system and audio-visual record and broadcast method of using synchronous recording and synchronous transmission.
Background technology
Along with the fast development of internet, the thing that can utilize network to carry out is more and more, and service miscellaneous is also flourish gradually on the network.Utilize network not have distance, borderless characteristic so just have, and advocate the idea of the Web-based instruction,,, all can not need meet the content that can allow learner's learning teaching person be lectured at a distance of how remote no matter make where instructor and learner are positioned at.
For example, " the webpage activity recorder and the webpage activation record playing device " of known techniques disclosed following content:
Use a webpage activity recorder, with various webpage activities that the instructor triggered and instructor's sound and image, utilize relation record lock in time program to write down its mutual time sequencing relation, again with a webpage activation record playing device, concern that control program makes its heavy line or simulated time order movable lock in time according to webpage, and each webpage activity and instructor's sound and image are play, and allow the learner watch reading learning by each playing program.
Yet, comprise this patent in interior all known techniques, though can reach the expection effect of the Web-based instruction, many shortcomings also appear in actual applications.For instance:
(1) each incident is given record respectively, write down its time synchronized relation by the movable relation record lock in time program of webpage again.Therefore when the Network Transmission data, transmit, comparatively lose time and Internet resources because need be divided into several data.
(2) each incident is separated record.Therefore when Network Transmission, tend between webpage activity, image and sound, take place to postpone inharmonic existing picture.Cause the learner when watching reading,, and learning disorder takes place easily because lecturing content can't correspondingly cooperate with screen-picture.
(3) each incident is given record respectively.Therefore if a certain incident (as webpage network address, web page contents, file route) change promptly can cause when playing and can not find data, or content and other incident situation that can't be connected.
(4) instructor and learner, all the software that need be necessary (even hardware) could be made and play.Therefore, often cause both sides (particularly learner's) inconvenience and puzzlement.
Therefore, in order more effectively to impart knowledge to students by audio-visual teaching material at network, even can be more effectively at the Internet communication multi-medium file.Be necessary to develop new audio-visual teaching material manufacturing-broadcasting system, particularly develop new audio-visual record and broadcast method and audio-visual manufacturing-broadcasting system.
Summary of the invention
A main purpose of the present invention provides a kind of audio-visual teaching material manufacturing-broadcasting system, mainly image, sound, teaching action, the teaching material itself of transmitting terminal reached the operation screen of whole system ... Deng, the picture that can on screen, see and the sound of hearing through loudspeaker, in the same time, grasp simultaneously and store, the teaching picture that stores of grasp etc. being strung one by one becomes a multi-medium file again, reads its content so that the common people of receiving terminal can be watched easily; Use, become a kind of can the generation and postpone inharmonious phenomenon, and can allow the common people of receiving terminal can easily read without barrier more, watch, learn.
For reaching above-mentioned purpose, a kind of audio-visual teaching material manufacturing-broadcasting system of the present invention, it mainly can reach main cooperation transmitting terminal if CCD and microphone are arranged with teaching material webpage, operating environment, the teaching action of transmitting terminal, and its record is sent to receiving terminal, for common people's reading learning of receiving terminal; Wherein, this transmitting terminal, the picture of in the same time, being seen on simultaneously with screen, and can capture together by the sound that loudspeaker are heard, strung into general multi-medium file again; By this, make it when data is transmitted, single File Format is only arranged,, do not have again delay, inharmonic situation to take place can allow receiving terminal when watching reading.
Another main purpose of the present invention is to use known technology as far as possible to improve existing Web-based instruction technology (and technology of Network Transmission video and sound), uses and reduces added technique difficulty of the present invention and increase industrial applicability of the present invention.
For reaching above-mentioned purpose, the present invention proposes a kind of audio-visual record and broadcast method, and it comprises the following step: connect a plurality of AV devices; In a special time, carry out one and receive integrated process, use a plurality of audio and video informations of reception from those AV devices, and integrate those audio and video informations and become a multi-medium file, those audio and video informations comprise at least one acoustic information and at least one image information, and this multi-medium file is divided into a presentation content that corresponds to image and a sound-content that corresponds to sound, use only making by analyzing image and the sound that this multi-medium file can obtain corresponding those audio and video informations, and do not need again with reference to any archives or any device that do not belong to this multi-medium file; And propagate this multi-medium file.
In addition, the invention also discloses a kind of audio-visual manufacturing-broadcasting system, it comprises: one receives assembly, and in order to receive a plurality of video-audio signals from a plurality of AV devices, those audio and video informations comprise at least one acoustic information and at least one image information; One integrates assembly, become a multi-medium file in order to integrate those audio and video informations, this multi-medium file is divided into a presentation content that corresponds to image and a sound-content that corresponds to sound, use only making by analyzing image and the sound that this multi-medium file can obtain corresponding those audio and video informations, and do not need again with reference to any archives or any device that do not belong to this multi-medium file; One stores assembly, in order to store those video-audio signals and this multi-medium file; And one propagate assembly, in order to propagate this multi-medium file.
The present invention has following several principal character at least:
(1) use the method and system of synchronous recording to carry out the record and broadcast of video/audio archive.
(2) use the method and system of synchronous transmission to carry out the record and broadcast of video/audio archive.
(3) use known multi-medium file form (as the AVI File Format) to store video/audio archive.
(4) transmission by multi-medium file propagates image and sound on network.
In addition, have following feature in the concrete enforcement of the present invention at least:
(1) when acoustic information and image information synchronously the time, the playback rate with acoustic information is the standard of whole playback rate usually.
(2) when the acoustic information in a certain period is imperfect, fill up this acoustic information to intend likelihood signal (dummysignal) usually.
(3) can simultaneously accept the integration that a plurality of information are simultaneously carried out multi-medium file; Also can receive only a plurality of information earlier, and after finishing receiving, just carry out the integration of multi-medium file.
(4) when a plurality of image informations source, carry out the different images that corresponds to the different images information source overlapping.
(5) when these information (image information and acoustic information) be when a specified time interval just upgrades one time, thus much specified time interval can not change, even also can change at interval the update time of corresponding multi-medium file, and can also be not equal to specified time interval update time at interval.
(6) multi-medium file can also have reproduction time information except that presentation content and sound-content, when being indicated in arbitrary section content playing this multi-medium file, this section content broadcast time length why.
Description of drawings
Figure 1A to Fig. 1 C is respectively the schematic diagram that three kinds of common disappearances of known techniques are originated;
Fig. 2 is the schematic diagram of the cutting point in solution known techniques common deletion of the present invention source;
Fig. 3 A to Fig. 3 D is some schematic diagrames of a preferred embodiment of the present invention;
Fig. 4 A to Fig. 4 H is some schematic diagrames of another preferred embodiment of the present invention; And
Fig. 5 is the schematic diagram of the another preferred embodiment of the present invention.
Main conventional letter partly:
31 transmitting terminals
32 receiving terminals
33 instructor's images
34 teaching pictures
41 connect square
42 receive the integration square
43 propagate square
421 segmentations receive integrates square
422 integral body are in conjunction with square
423 segmentations receive square
424 integration are in conjunction with square
43 propagate square
441 intend like sound
442 special time voice signals
451 decision block
452 overlapping squares
461 special time audio and video informations
462 predetermined acquisition signals
471 calculate the benchmark square
472 adjust square
481 directly revise square
482 revise square indirectly
51 receive assembly
52 integrate assembly
53 store assembly
54 propagate assembly
55 AV devices
Embodiment
The present inventor at first points out many disappearances that known techniques is common, mainly is Zhao Yin in following several causes:
(1) shown in Figure 1A, in network transmission process, will separate transmission with sound related content and correction of image content often.Therefore, because transmit factors such as asynchronous or loss, the problem that image and sound can not be synchronous takes place easily.
(2) shown in Figure 1B, in network transmission process, often be not directly to transmit image archives or voice files itself, and just transmit these archives the address, play the information of sequential etc.Therefore, easily because being transmitted archives fails in time to react factors such as archives address change, and can not operate effectively.
(3) shown in Fig. 1 C, receive information at the same time from a plurality of sources (as loudspeaker, screen, mouse) after, will handle respectively from the information (sound, image etc.) of separate sources often.Therefore, the separate sources information storage not only can not more can't be guaranteed the mutual synchronized relation of information when playing of separate sources with an archives single treatment effectively at different archives.
The present inventor then points out the main cause of above-mentioned common deletion, as shown in Figure 2, can improve by following manner;
(1) in network transmission process, will be merged into single multi-medium file with sound related content and correction of image content and transmit.Use, eliminate because transmission is asynchronous or factor such as loss and the problem that image and sound can not be synchronous takes place.
(2) in network transmission process, directly by multi-medium file transmission image archives or voice files itself.By this, actions such as broadcast content renewal and broadcast content control are all moved on to the archives forming process, and make that network transmission process is a simple transmission, can read archives after making the user receive archives, and not be used in the actions such as grasping or adjust setting of surfing the Net.
(3) when the information that receives simultaneously from a plurality of sources (as loudspeaker, screen, mouse), just will be integrated into a multi-medium file from the information (sound, image etc.) of separate sources.Therefore, the separate sources information storage is at same archives, not only can more can guarantee the mutual synchronized relation of information when playing of separate sources effectively with an archives single treatment.
According to top discussion, a preferred embodiment of the present invention is a kind of audio-visual teaching material manufacturing-broadcasting system, it mainly can be with teaching material webpage, operating environment, the teaching action of transmitting terminal, and main cooperation transmitting terminal is if there is CCD (Charged Couple Device, charge coupled cell) and microphone, and its record (teaching material webpage, operating environment, teaching action and sound that finger is received) is sent to receiving terminal, for common people's reading learning of receiving terminal;
It is characterized in that: this transmitting terminal, the picture of in the same time, being seen on simultaneously with screen, and can capture together by the sound that loudspeaker are heard, strung into general multi-medium file again; By this, make it when data is transmitted, single File Format is only arranged,, do not have again delay, inharmonic situation to take place can allow receiving terminal when watching reading.
As shown in Figure 3A, the audio-visual teaching material manufacturing-broadcasting system of present embodiment can be divided into transmitting terminal 31 and receiving terminal 32.
At this, transmitting terminal 31 can be respectively with teaching material webpage, instructor's operating environment, instructor's teaching action (as: setting-out, mark mark, picture shape ... etc.), and cooperate transmitting terminal 31 whether CCD, USB PC Video Camera and microphone etc. are arranged, the picture that can on screen, see and the sound of hearing by loudspeaker, capture simultaneously at one time, and instructor's image 33 positions of transmitting terminal 31 can be free with the required adjustment of sender, to avoid image influence teaching picture 34 (shown in Fig. 3 B).To adjust and grasp picture number (shown in Fig. 3 C) at interval according to the speed of the difference or the network environment of hardware environment again, strung into general multimedia film archive (shown in Fig. 3 D).
At this, by the teaching material shelves of transmitting terminal 31 made general multimedia films, it can be sent to receiving terminal 32 by network, allows the user direct viewing read the teaching material demonstration; By the teaching material archives of transmitting terminal 31 made general multimedia films, it also can store/descend to be stated from various storage devices, to allow receiving terminal 32 play reading learning by softwares such as Media Player by off-line such as the windows workspace system.
Composition by above-described present embodiment with use implementation as can be known, present embodiment is compared down with known techniques really has following advantage:
(1) picture that will on screen, be seen of present embodiment (for example the employed teaching material webpage of instructor, instructor are engaged in teaching the operating environment of process, the teaching action that the instructor carried out (line, frame choosing)), reach the sound of hearing by loudspeaker (for example sound of the oral statement that the instructor carried out), capture simultaneously in the same time, again each picture number is strung and made general multi-medium file, make it when the Network Transmission data, single File Format is only arranged, and not only can utilize very fast speed rates and also can save the lower network resource.
(2) present embodiment is owing to be made into single multi-medium file with picture and sound, make the user of receiving terminal in watching when reading, never have delay and picture and instruction content and mismatch inharmonic situation and take place, and allow the user of receiving terminal can light more clog-free study.
(3) present embodiment is because with picture and sound etc., in the same time, capture simultaneously, and make general multi-medium file, do not need recorded content address and time ordinal relation etc., and never have because of network address, web page contents or file route change, cause and can't simulate and reappear the education activities content.
(4) the made archives of present embodiment belong to the audio-visual teaching material archives of web-based network multimedia, receiving terminal can be by general web page browsing program direct viewing, or utilize the broadcasts such as Media Player of windows workspace internal system to watch, do not need to install playing program in addition, and can increase its convenience on using.
Apparently, though this embodiment is audio-visual teaching material manufacturing-broadcasting system, but can find by its content of the discussions, the focusing on of this embodiment is integrated into multimedia shelves earlier with image, sound etc. propagates again, and with the content of the image that is integrated, sound etc. whether be that teaching material does not have inevitable relation.In other words, claim of the present invention is not limited to audio-visual teaching material.
Therefore, another preferred embodiment of the present invention is a kind of audio-visual record and broadcast method, shown in Fig. 4 A, comprises following basic step at least:
As connect shown in the square 41, connect a plurality of AV devices.
As receive and integrate shown in the square 42, in a special time, carry out one and receive integrated process, use a plurality of audio and video informations of reception, and integrate these audio and video informations and become a multi-medium file from these AV devices.
At this, these audio and video informations comprise at least one acoustic information and at least one image information, and multi-medium file is divided into presentation content that corresponds to image and the sound-content that corresponds to sound, use only making by analyzing image and the sound that this multi-medium file can obtain corresponding those audio and video informations, and do not need again with reference to any archives or any device that do not belong to this multi-medium file.
As propagate shown in the square 43, propagate this multi-medium file.
In the present embodiment, shown in Fig. 4 B, receive integrated process and can comprise following basic step at least:
Receive shown in the integration square 421 as segmentation, every a specified time interval, just carry out a special time and receive integrated process, receive a plurality of special time audio and video informations, and integration becomes a special time multi-medium file according to a little special time audio and video informations from these AV devices.
,, after special time finishes, integrate these special time multi-medium files and become multi-medium file for this reason in conjunction with shown in the square 422 as integral body.At this, according to these special time multi-medium files that superpose in regular turn in proper order before and after the time, use the formation multi-medium file usually.
In the present embodiment, shown in Fig. 4 C, receive integrated process and also can comprise following basic step at least:
Receive shown in the square 423 as segmentation,, receive integrated process, receive a plurality of special time audio and video informations from these AV devices just carry out a special time every a specified time interval.
In conjunction with shown in the square 424, after special time finished, integrating these special time audio and video informations became this multi-medium file as integration.At this, according to these special time audio and video informations that superpose in regular turn in proper order before and after the time, use the formation multi-medium file usually.
Apparently, present embodiment focus on image and sound can be incorporated into same archives at last.So just integrate one section to receiving one section, or integrate again after all receiving, be not the emphasis of present embodiment.
That must emphasize also has following 2 points:
(1) any special time audio and video information receives and comprises at least one special time acoustic information and at least one special time image information.Certainly, (empty) that arbitrary special time acoustic information and arbitrary special time image information can be empty is if certain section special time image itself is blank.And, arbitrary special time acoustic information all can correspond to not only sound source simultaneously, arbitrary special time image information also all can correspond to not only an image source simultaneously, as long as can store so far special time acoustic information special time image information therewith when acquisition (record, make video recording, receive screen-picture, receive action such as handwriting pad input).
(2) specified time interval can change.That is the time difference that adjacent secondary special time receives between the integrated process can change.
Further, when a certain special time acoustic information is imperfect (output or Recording Process do not have factor such as careless mistake etc. in the period at this section in possible sound source), shown in Fig. 4 D, present embodiment can use the imperfect place that intends filling up like voice signal 441 special time acoustic information 442.At this, intend like voice signal can be: no acoustical signal, random signal, heavily cover special special time signal or above-mentioned each described combination in any.In addition, size for the multi-medium file that reduces final generation, present embodiment still can be after these special time voice information be finished stack, handles these special time audio and video informations after stack with known compress technique and known compression method (for example compressed software program in the VCM letter formula storehouse of windows workspace system).
Further, when a certain special time audio and video information comprises a plurality of separate sources special time image information at least, shown in Fig. 4 E, can integrate these special time images according to the following step becomes a special time image information that corresponds to these separate sources special time audio and video informations;
Shown in decision block 451, judge the image size size of each separate sources special time image information pairing one special source image.
Shown in overlapping square 452, according to the image size order of these special source images, be background with a certain special source image of image size maximum, these special source images that overlapping in regular turn these separate sources special time image informations are corresponded to.
At this,, can be that other the special time image except is as a setting shown in translucent mode for avoiding the mutual interference of superimposed image phase; Also any special time image is placed on the edge or the corner of other bigger special time image of image size; Also can be to allow computer etc.,, determine the arrangement between these special time images automatically according to overlapping ratio is dropped to minimum principle.In addition, the arrangement mode between these special time images can be fixing all the time and can not change in this special time; Also can be in this special time, can change.Certainly, size for the multi-medium file that reduces final output, can also be after these special time images be finished stack, with these the special time audio and video informations after known compress technique or known compressed software (for example compressed software program in the VCM letter formula storehouse of windows workspace system) the processing stack.
In addition, because image and the acquisition of sound and the transport process of relevant information, all may make a mistake, and make the imperfect or delay of relevant information in some specified time interval.Therefore, for avoiding output effect at the multimedia shelves to demonstrate the disappearance of the imperfect or message delay of information, present embodiment can also add a reproduction time information at arbitrary special time audio and video information, when being indicated in the play multimedia archives, this section special time audio and video information actual broadcast time length why, and this broadcast time length can not be equal to specified time interval.
For instance, shown in Fig. 4 F, just when predetermined be once every acquisition in 1/16 second, but certain section interimly when unexpected just captured once every 1/8 second for some reason.At this moment, by this section when unexpected the reproduction time information of interim each special time audio and video information 462 all be set at 1/8 second, just in the time of can avoiding special time audio and video information 462 still to upgrade once speed and broadcast according to 1/16 second of predetermined acquisition signal, the disappearance of the imperfect or message delay of the information that may take place.
At this, because generally speaking acoustic information more can not make mistakes (because the archives size of sound shelves is often much smaller than archives sizes of image shelves) and can repair like sound with above-mentioned plan.Therefore, generally speaking, the record and broadcast method, when at least one this special time acoustic information that is corresponded to when arbitrary this special time audio and video information is asynchronous with at least one arbitrary this special time image information, time span with those special time acoustic informations is as the criterion, and decides the length of this length broadcast time.
In general, can comprise at least in order to the software that these image informations in these video-audio signals is integrated into the presentation content of multi-medium file one of following: the DirectShow letter formula of the GDI letter formula storehouse of operating system, copy graphic documentation point letter formula, operating system.And can comprise at least in order to the software that these acoustic informations in these video-audio signals is integrated into the sound-content of multi-medium file: the DirectSound letter formula of operating system.
Further, in order to simplify the image information handling procedure, when certain special time audio and video information comprises special time viewing window pictures information, special time cartoon picture information or special time viewing window pictures information, can use known difference processing mode or the like to carry out the correction and the processing of special time viewing window pictures, and need not all carry out complete from the beginning to the end computing the image data that captures gained each time.
For instance, when the continuous special time audio and video information of some priority all comprises special time viewing window pictures information, shown in Fig. 4 G and Fig. 4 H, can carry out the correction and the processing of special time viewing window pictures according to following basic step:
As calculate shown in the benchmark square 471, link to each other before and after the order time difference between two special time viewing window pictures information computing time.
As adjust shown in the square 472, adjust according to the time difference.
At this, adjust square 472 and comprise two basic steps at least:
Shown in direct correction square 481, if the time difference greater than first predetermined value, then increase the per second form display frame frame number (frame) of back special time viewing window pictures information according to the time difference.
Shown in indirect correction square 482, if the time difference is less than first predetermined value but greater than second predetermined value, note the variable quantity of time difference.In general, between the special time viewing window pictures information of carrying out continuously, the time difference variable quantity is to accumulate continuously, up to surpassing first predetermined value, just carries out the correction of picture frame number and makes zero adjustment.
For instance, as if being the display unit of receiving terminal with general computer screen, first predetermined value is approximately 2000/ (per second form display frame frame number), and the computing formula of second predetermined value is:
The time difference-[2000/ (per second form display frame frame number)]+previous time is poor.
At this, the previous time difference is time difference of being accumulated of at least one special time audio and video information of pre-treatment for it.
Further, present embodiment can be converted to sound stream (sound stream) and image stream (image stream) earlier with these special time acoustic informations and these special time image informations, is stored to multi-medium file again.At this, can use the VFW letter formula storehouse of windows workspace system at least, and can allow the multi-medium file be image shelves (AVI file) at least.
By way of parenthesis, present embodiment can use following manner to propagate multi-medium file at least: Network Transmission, netcast, this machine sowing are put, are stored in the magnetic storing media and be stored in the optics storing media.And present embodiment can use following AV device at least: microphone, recording pen, recorder, recording device, video camera, screen, camera, digital camera, charge coupled cell, camera, writing input board, hand input device, mapping software, image software, audio software and computer software.
Apparently, present embodiment utilizes variety of way to handle image information and the acoustic information of each section in the time interval, uses to be integrated into needed multi-medium file.And the variety of way of using, all unqualified must the execution by the sort of hardware or the sort of software just limited with the function that must reach.In other words, present embodiment does not limit the details of corresponding system.
Therefore, the another preferred embodiment of the present invention is a kind of audio-visual manufacturing-broadcasting system.As shown in Figure 5, comprise following elementary cell at least: receive assembly 51, integrate assembly 52, store assembly 53 and propagate assembly 54.
Receiving assembly 51 is a plurality of video-audio signals that are used for receiving from a plurality of AV devices 55, and these audio and video informations comprise at least one acoustic information and at least one image information.
At this, receive assembly 51 and can carry out one of following letter formula at least usually: the GDI letter formula storehouse of operating system, copy graphic documentation point letter formula, the DirectShow letter formula of operating system, the DirectSound letter formula of operating system.Receiving composition 51 can be one of following hardware: microprocessor, special purpose integrated circuit, microwafer and CPU.
In addition, possible AV device 55 has at least: microphone, recording pen, recorder, recording device, video camera, screen, camera, digital camera, charge coupled cell, camera, writing input board, hand input device, mapping software, image software, audio software and computer software.
Integrating assembly 52 is to be used for integrating these audio and video informations to become a multi-medium file.This multi-medium file can be divided into presentation content that corresponds to image and the sound-content that corresponds to sound, use only making by analyzing image and the sound that this multi-medium file can obtain corresponding these audio and video informations, and do not need again with reference to any archives or any device that do not belong to this multi-medium file.
At this, integrate assembly 52 and can carry out one of following letter formula at least usually: the VFW letter formula storehouse of the VCM letter formula storehouse of the GDI letter formula storehouse of operating system, picture differentiation handling procedure, operating system, condensing routine, operating system, plan are like sound fabrication schedule, video-audio synchronization program, the DirectShow letter formula of operating system, the DirectSound letter formula of operating system.And integrating assembly 52 can be one of following hardware.Microprocessor, special purpose integrated circuit, microwafer and CPU.
Storing assembly 53 is to be used for storing these video-audio signals and this multi-medium file.And can store the temporary archives that integration assembly 52 operation are produced.
In general, storing assembly 53 can be: dynamic random access memory, static RAM, flash memory, hard disc, magnetic storing media and optics storing media.
Propagating assembly 54 is to be used for propagating this multi-medium file.
At this, propagate assembly 54 and can use following manner to propagate multi-medium file at least: Network Transmission, netcast, this machine sowing are put, are stored in the magnetic storing media and be stored in the optics storing media.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those who are familiar with this art, without departing from the spirit and scope of the invention; when can doing a little change and retouching, so the present invention's protection range is as the criterion when looking claims scope person of defining.
Claims (49)
1. audio-visual teaching material manufacturing-broadcasting system, it mainly can be with teaching material webpage, operating environment, the teaching action of transmitting terminal, and mainly cooperates transmitting terminal if CCD and microphone are arranged, and its record is sent to receiving terminal, for common people's reading learning of receiving terminal; It is characterized in that:
This transmitting terminal, the picture of in the same time, being seen on simultaneously with screen, and can capture together by the sound that loudspeaker are heard, strung into general multi-medium file again; By this, make it when data is transmitted, single File Format is only arranged,, do not have again delay, inharmonic situation to take place can allow receiving terminal when watching reading.
2. audio-visual teaching material manufacturing-broadcasting system as claimed in claim 1 is characterized in that: this teaching action is meant that transmitting terminal can carry out setting-out, mark mark, picture shape figures in teaching material webpage or operating environment.
3. audio-visual teaching material manufacturing-broadcasting system as claimed in claim 1 is characterized in that: by the made archives of transmitting terminal, it is owing to be general multi-medium file, makes that receiving terminal not only can direct viewing on network, also can download to store to play and watch.
4. audio-visual teaching material manufacturing-broadcasting system as claimed in claim 1, it is characterized in that: what the present invention finished is to belong to general multi-medium file, do not need recorded content position and time sequencing relation, and will not have the situation that to simulate and to reappear education activities and content again to take place.
5. audio-visual teaching material manufacturing-broadcasting system as claimed in claim 1 is characterized in that: what the present invention finished is general multi-medium file, and receiving terminal does not need to download and install any program again and gets final product direct viewing.
6. audio-visual record and broadcast method is characterized in that: comprise:
Connect a plurality of AV devices;
In a special time, carry out one and receive integrated process, use a plurality of audio and video informations of reception from those AV devices, and integrate those audio and video informations and become a multi-medium file, those audio and video informations comprise at least one acoustic information and at least one image information, and this multi-medium file is divided into a presentation content that corresponds to image and a sound-content that corresponds to sound, use only making by analyzing image and the sound that this multi-medium file can obtain corresponding those audio and video informations, and do not need again with reference to any archives or any device that do not belong to this multi-medium file; And
Propagate this multi-medium file.
7. audio-visual record and broadcast method as claimed in claim 6 is characterized in that: this reception integrated process comprises at least:
Every a specified time interval, just carry out special time and receive integrated process, receive a plurality of special time audio and video informations, and integrate those special time audio and video informations and become a special time multi-medium file from those AV devices; And
After this special time finished, integrating those special time multi-medium files became this multi-medium file.
8. audio-visual record and broadcast method as claimed in claim 7 is characterized in that: according to those special time multi-medium files that superpose in regular turn in proper order before and after the time, use forming this multi-medium file.
9. audio-visual record and broadcast method as claimed in claim 6 is characterized in that: this reception integrated process comprises at least:
Every a specified time interval, just carry out a special time and receive integrated process, receive a plurality of special time audio and video informations from those AV devices; And
After this special time finished, integrating those special time audio and video informations became this multi-medium file.
10. audio-visual record and broadcast method as claimed in claim 9 is characterized in that: according to those special time audio and video informations that superpose in regular turn in proper order before and after the time, use forming this multi-medium file.
11. as claim 7 or 9 described audio-visual record and broadcast methods, it is characterized in that: any this special time audio and video information comprises at least one special time acoustic information and at least one special time image information.
12. audio-visual record and broadcast method as claimed in claim 6, it is characterized in that: this specified time interval can change, that is the time difference that this special time of adjacent secondary receives between the integrated process can change.
13. audio-visual record and broadcast method as claimed in claim 11 is characterized in that: when arbitrary this special time acoustic information is imperfect, use a plan to fill up the imperfect place of this special time acoustic information like voice signal.
14. audio-visual record and broadcast method as claimed in claim 13 is characterized in that: this plan is selected from one of following like voice signal: no acoustical signal, random signal and heavily cover this special special time signal.
15. audio-visual record and broadcast method as claimed in claim 13, it is characterized in that: still can be after those special time voice information be finished stack, with those the special time audio and video informations after known compression method such as the compressed software program in the VCM letter formula storehouse of for example windows workspace system or the stack of known compression techniques process.
16. audio-visual record and broadcast method as claimed in claim 15 is characterized in that: this known compression method or known compress technique are the compressed software program in the VCM letter formula storehouse of windows workspace system.
17. audio-visual record and broadcast method as claimed in claim 11, it is characterized in that: when a certain special this special time audio and video information comprises a plurality of special time during image information at least, integrating those special time images according to the following step becomes a special time image information that corresponds to those special time audio and video informations;
Judge the image size size of each this special time image information pairing one special time image; And
According to the image size order of those special time images, be background with a certain this special time image of image size maximum, those special time images that overlapping in regular turn those special time image informations are corresponded to.
18. audio-visual record and broadcast method as claimed in claim 17 is characterized in that: those the special time images except are as a setting shown in translucent mode.
19. audio-visual record and broadcast method as claimed in claim 17 is characterized in that: this special time image is placed on the edge or the corner of the bigger at least one special time image of image size with any.
20. audio-visual record and broadcast method as claimed in claim 17 is characterized in that: the arrangement mode between those special time images is to drop to overlapping ratio minimum.
21. audio-visual record and broadcast method as claimed in claim 17 is characterized in that: the arrangement mode between those special time images is fixing all the time and can not change in this special time.
22. audio-visual record and broadcast method as claimed in claim 17 is characterized in that: the arrangement mode between those special time images can change in this special time.
23. audio-visual record and broadcast method as claimed in claim 17, it is characterized in that: still can be after those special time images be finished stack, handle those special time audio and video informations after the stack with known compress technique such as the compressed software program in the VCM letter formula storehouse of for example windows workspace system or known compression method.
24. audio-visual record and broadcast method as claimed in claim 23 is characterized in that: this known compress technique or known compression method are the compressed software program in the VCM letter formula storehouse of windows workspace system.
25. audio-visual record and broadcast method as claimed in claim 11 is characterized in that: still can add a reproduction time information at arbitrary this special time audio and video information, when playing this multi-medium file in order to be indicated in this special time audio and video information broadcast time length why.
26. audio-visual record and broadcast method as claimed in claim 25 is characterized in that: this broadcast time length can not be equal to this specified time interval.
27. audio-visual record and broadcast method as claimed in claim 25, it is characterized in that: when at least one this special time acoustic information that is corresponded to when arbitrary this special time audio and video information is asynchronous with at least one arbitrary this special time image information, time span with those special time acoustic informations is as the criterion, and decides the length of this length broadcast time.
28. audio-visual record and broadcast method as claimed in claim 27 is characterized in that: with renewal rate in those special time image informations update time of the slowest person, as the length of this length broadcast time.
29. audio-visual record and broadcast method as claimed in claim 6 is characterized in that: can be one of following: the GDI letter formula storehouse of operating system, roasting shellfish graphic documentation point letter formula, the DirectShow letter formula of operating system, the DirectSound letter formula of operating system in order to those image informations in those video-audio signals and the software that is integrated into this presentation content of this multi-medium file are comprised at least.
30. audio-visual record and broadcast method as claimed in claim 11 is characterized in that: when at least one this special time audio and video information comprises a special time viewing window pictures information, use known difference processing mode to carry out the correction and the processing of this special time viewing window pictures.
31. audio-visual record and broadcast method as claimed in claim 11 is characterized in that: when at least one this special time audio and video information comprises special time teaching action message, use known difference processing mode to carry out the correction and the processing of this special time viewing window pictures.
32. audio-visual record and broadcast method as claimed in claim 11 is characterized in that: when at least one this special time audio and video information comprises a special time cartoon picture information, use known difference processing mode to carry out the correction and the processing of this special time viewing window pictures.
33. audio-visual record and broadcast method as claimed in claim 11 is characterized in that: when at least one this special time audio and video information comprises a special time viewing window pictures information, carry out the correction and the processing of this special time viewing window pictures according to the following step:
Calculate the time difference between former and later two these special time viewing window pictures information; And
Comply with this time difference and adjust, comprise:
If this time difference greater than one first predetermined value, then increases the per second form display frame frame number of this special time viewing window pictures information in back according to this time difference; And
If this time difference is less than this first predetermined value but greater than one second predetermined value, note the variable quantity of time difference.
34. audio-visual record and broadcast method as claimed in claim 33 is characterized in that: this first predetermined value is 2000/ (per second form display frame frame number).
35. audio-visual record and broadcast method as claimed in claim 33, it is characterized in that: the computing formula of this second predetermined value is:
The time difference-[2000/ (per second form display frame frame number)]+previous time is poor,
At this, the previous time difference is time difference of being accumulated of at least one this special time audio and video information of pre-treatment for it.
36. audio-visual record and broadcast method as claimed in claim 11 is characterized in that: with those special time acoustic informations and those special time image informations, be converted to sound stream and image stream earlier, be stored to this multi-medium file again.
37. audio-visual record and broadcast method as claimed in claim 36 is characterized in that: the VFW letter formula storehouse of using the windows workspace system.
38. audio-visual record and broadcast method as claimed in claim 36 is characterized in that: this multi-medium file is image shelves (AVI file).
39. audio-visual record and broadcast method as claimed in claim 6 is characterized in that: use following manner to propagate this multi-medium file: Network Transmission, netcast, this machine sowing are put, are stored in the magnetic storing media and be stored in the optics storing media.
40. audio-visual record and broadcast method as claimed in claim 6 is characterized in that: those AV devices are selected from one of following: microphone, recording pen, recorder, recording device, video camera, screen, camera, digital camera, charge coupled cell, camera, writing input board, hand input device, mapping software, image software, audio software and computer software.
41. an audio-visual manufacturing-broadcasting system is characterized in that: comprise:
One receives assembly, and in order to receive a plurality of video-audio signals from a plurality of AV devices, those audio and video informations comprise at least one acoustic information and at least one image information;
One integrates assembly, become a multi-medium file in order to integrate those audio and video informations, this multi-medium file is divided into a presentation content that corresponds to image and a sound-content that corresponds to sound, use only making by analyzing image and the sound that this multi-medium file can obtain corresponding those audio and video informations, and do not need again with reference to any archives or any device that do not belong to this multi-medium file;
One stores assembly, in order to store those video-audio signals and this multi-medium file; And
One propagates assembly, in order to propagate this multi-medium file.
42. audio-visual manufacturing-broadcasting system as claimed in claim 41 is characterized in that: those AV devices are selected from one of following: microphone, recording pen, recorder, recording device, video camera, screen, camera, digital camera, charge coupled cell, camera, writing input board, hand input device, mapping software, image software, audio software and computer software.
43. audio-visual manufacturing-broadcasting system as claimed in claim 41 is characterized in that: this reception assembly is for carrying out a hardware of one of following letter formula at least: the GDI letter formula storehouse of operating system, roasting shellfish graphic documentation point letter formula, the DirectShow letter formula of operating system, the DirectSound letter formula of operating system.
44. audio-visual manufacturing-broadcasting system as claimed in claim 41 is characterized in that: this reception assembly is selected from one of following: microprocessor, special purpose integrated circuit, microwafer and CPU.
45. audio-visual manufacturing-broadcasting system as claimed in claim 41 is characterized in that: this integration assembly is for carrying out a hardware of one of following letter formula at least: the VFW letter formula storehouse of the VCM letter formula storehouse of the GDI letter formula storehouse of operating system, picture differentiation handling procedure, operating system, condensing routine, operating system, plan are like sound fabrication schedule, video-audio synchronization program, the DirectShow letter formula of operating system, the DirectSound letter formula of operating system.
46. audio-visual manufacturing-broadcasting system as claimed in claim 41 is characterized in that: this integration assembly is selected from one of following: microprocessor, special purpose integrated circuit, microwafer and CPU.
47. audio-visual manufacturing-broadcasting system as claimed in claim 41 is characterized in that: this storage assembly still can store at least one temporary archives that this integration assembly operation is produced.
48. audio-visual manufacturing-broadcasting system as claimed in claim 41 is characterized in that: this storage assembly is selected from one of following: dynamic random access memory, static RAM, flash memory, hard disc, magnetic storing media and optics storing media.
49. audio-visual record and broadcast method as claimed in claim 6 is characterized in that: this propagation assembly uses following manner to propagate this multi-medium file: Network Transmission, netcast, this machine sowing are put, are stored in the magnetic storing media and be stored in the optics storing media.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02141324 CN1287554C (en) | 2001-08-10 | 2002-07-05 | Audio and video teaching material recording and playback system and method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01233030.2 | 2001-08-10 | ||
| CN01233030 | 2001-08-10 | ||
| CN 02141324 CN1287554C (en) | 2001-08-10 | 2002-07-05 | Audio and video teaching material recording and playback system and method |
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| Publication Number | Publication Date |
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| CN1402482A true CN1402482A (en) | 2003-03-12 |
| CN1287554C CN1287554C (en) | 2006-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02141324 Expired - Fee Related CN1287554C (en) | 2001-08-10 | 2002-07-05 | Audio and video teaching material recording and playback system and method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409681C (en) * | 2005-08-19 | 2008-08-06 | 上海晨兴电子科技有限公司 | Image-sound synchronous recording and playing method |
| CN100412852C (en) * | 2004-05-10 | 2008-08-20 | 北京大学 | Networked, multimedia synchronous composed storage and issuance system, and method for implementing the system |
| CN101071602B (en) * | 2006-05-09 | 2010-08-25 | 广达电脑股份有限公司 | Method and device for determining video frame playing duration |
| US7885514B2 (en) | 2006-03-24 | 2011-02-08 | Quanta Computer Inc. | Apparatus and method for determining rendering duration of video frame |
| CN103198724A (en) * | 2013-03-26 | 2013-07-10 | 闫健 | Panorama mode online learning system and pen special for learning system |
| WO2015085644A1 (en) * | 2013-12-11 | 2015-06-18 | 闫健 | Dedicated format file generation method for panorama mode teaching system |
| CN105760126A (en) * | 2016-02-15 | 2016-07-13 | 惠州Tcl移动通信有限公司 | Multi-screen file sharing method and system |
| CN105915970A (en) * | 2016-05-17 | 2016-08-31 | 创盛视联数码科技（北京）有限公司 | Network live broadcasting operation command sending method and device as well as reading method and device |
| CN106021216A (en) * | 2016-05-24 | 2016-10-12 | 杭州圆本科技有限公司 | Electronic noting method |
| CN106101742A (en) * | 2016-08-23 | 2016-11-09 | 北京汉博信息技术有限公司 | A kind of for informationalized visualization data file generation method |
| WO2017045447A1 (en) * | 2015-09-18 | 2017-03-23 | 谷鸿林 | Content recording and reproducing system and method |
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2002
- 2002-07-05 CN CN 02141324 patent/CN1287554C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412852C (en) * | 2004-05-10 | 2008-08-20 | 北京大学 | Networked, multimedia synchronous composed storage and issuance system, and method for implementing the system |
| CN100409681C (en) * | 2005-08-19 | 2008-08-06 | 上海晨兴电子科技有限公司 | Image-sound synchronous recording and playing method |
| US7885514B2 (en) | 2006-03-24 | 2011-02-08 | Quanta Computer Inc. | Apparatus and method for determining rendering duration of video frame |
| CN101071602B (en) * | 2006-05-09 | 2010-08-25 | 广达电脑股份有限公司 | Method and device for determining video frame playing duration |
| CN103198724A (en) * | 2013-03-26 | 2013-07-10 | 闫健 | Panorama mode online learning system and pen special for learning system |
| WO2015085644A1 (en) * | 2013-12-11 | 2015-06-18 | 闫健 | Dedicated format file generation method for panorama mode teaching system |
| US20160240094A1 (en) * | 2013-12-11 | 2016-08-18 | Jian Yan | Dedicated format file generation method for panorama mode teaching system |
| US10354540B2 (en) * | 2013-12-11 | 2019-07-16 | Jian Yan | Method for generating a dedicated format file for a panorama mode teaching system |
| WO2017045447A1 (en) * | 2015-09-18 | 2017-03-23 | 谷鸿林 | Content recording and reproducing system and method |
| CN105760126A (en) * | 2016-02-15 | 2016-07-13 | 惠州Tcl移动通信有限公司 | Multi-screen file sharing method and system |
| CN105915970A (en) * | 2016-05-17 | 2016-08-31 | 创盛视联数码科技（北京）有限公司 | Network live broadcasting operation command sending method and device as well as reading method and device |
| CN106021216A (en) * | 2016-05-24 | 2016-10-12 | 杭州圆本科技有限公司 | Electronic noting method |
| CN106101742A (en) * | 2016-08-23 | 2016-11-09 | 北京汉博信息技术有限公司 | A kind of for informationalized visualization data file generation method |
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| CN1287554C (en) | 2006-11-29 |
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