CN2627766Y - Large capacity visual information CD playing device - Google Patents
Large capacity visual information CD playing device Download PDFInfo
- Publication number
- CN2627766Y CN2627766Y CN 03262321 CN03262321U CN2627766Y CN 2627766 Y CN2627766 Y CN 2627766Y CN 03262321 CN03262321 CN 03262321 CN 03262321 U CN03262321 U CN 03262321U CN 2627766 Y CN2627766 Y CN 2627766Y
- Authority
- CN
- China
- Prior art keywords
- visual information
- audio
- central processing
- processing unit
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A large capacity visual information CD playing device comprises a CD servo device, a central processing unit, a decoding device, a storage device, a video decoding device, an audio digital/analog converting device, a signal outputting device, and a play navigation module, wherein the play navigation module is stored in the storage device; after the play navigation module runs, the central processing unit controls the CD servo device to read the audio data, text data, picture data and video data compressed on the visual information CD; the central processing unit synchronizes the outputted audio data and text data. The utility model can solve the problem that the single disk playing time of the visual information CD is short, by storing program with super long time on one CD, making a piece of common visual information CD to be a real CD with super large capacity, and playing this CD.
Description
Technical field
The utility model relates to the storage and the play-back technology of visual information CD, is a kind of big capacity visual information disk player concretely.
Background technology
General DVD player can play CD/VCD/SVCD/MP3/DVD/DVCD etc. the CD of various videos or audio frequency.In these CDs, a stores audio data that has is such as CD, MP3 CD, in some MP3 CD, also store some Word messages, but this literal information is reproduced on CRT monitor and only is limited several row when coming out, and does not have background patterns to cooperate, and visual effect is relatively poor.And the other CD is such as VCD/DVCD/SVCD/DVD etc., general stored video data, but generally the time of these CD displaying video information can not surpass 2.5 hours, wherein the VCD CD only is 74 minutes.
As seen, the various videos in the market or the CD of audio frequency all exist the short defective of reproduction time, though the MP3 CD has long reproduction time, the Word message of its storage is limited, and visual effect is relatively poor; This has just strengthened the cost that CD-ROM Title is made, and the cost of CD use.Particularly when making the program of ultra-long time such as instruction film on CD, often because of the production process of complexity, the storage of polydisc sheet makes these very popular CD goods to reduce cost.Now be that example is discussed with the instruction film:
Domestic electronic instruction product is broadly divided into two big class, hardware product and software products at present.Hardware product comprises PC, electronic dictionary, sound Wen Xiu, memory treasured etc.; Software product comprises electronic publication and audio-visual product etc.; Multimedia software and DVD player laser disc account for the overwhelming majority in software product, wherein also have some to be used for the MP3 software of educational programme.The quality of these products of analysis-by-synthesis can draw to draw a conclusion:
One, class teaching product such as electronic dictionary, sound Wen Xiu, memory treasured: its basic characteristics are that software is built-in, and major part does not need outside software support.Therefore, software poor expandability.Its basic function is limited to the English word memory.Owing to be subjected to the memory span restriction, there is defective in it aspect explanation of teaching.
Two, audio class teaching software: it operates in the DVD machine platform substantially, also can move at computer platform.This class software format is the MPG form substantially, and the teaching software content mostly is the teacher greatly and explains video recording, and its teaching efficiency is significantly better than the teaching product described in the front one, and can expand.Its shortcoming is: the single-deck reproduction time is short, and finishing of software must be through shooting process, its complex manufacturing process, and investment is big.And owing to be subjected to CD capacity and limit general 650M laser disc and can only store content about 1 hour.Though the DVD form expands the capacity of laser disc to 8.4G, do not solve the process of shooting and producing software, owing to be subjected to the restriction of software format, the laser disc of one constant volume does not have prolong reproduction time, and just enlarges the physical capacity of every laser disc.So for the educational programme of ultra-long time, still need the polydisc sheet, the high making, so cost is higher; Moreover, because its application surface is wider, be difficult to the control problem of piracy.
Three, electronic publication: this class software operates in the PC platform substantially, and PC is difficult to promote below China 3 class cities then because price is too high.Popularize little (it is many to be not so good as DVD player) of amount and pirate reason owing to be subjected to PC, cause the market and the sales volume of domestic electronic publication class teaching software all undesirable.
Four, MP3 teaching software: its main body is a kind of audio file that passes through compression, this class software can be general at DVD machine platform and PC platform, its principal character makes the single dish storage efficiency improve 40 times for storage on the laser disc of 650M capacity reaches as high as 40 hours play content.But this class software can only listening, can not synchronization display words.Though the English Listening Comprehension software that also has some configured letters to show, its can only be on the PC platform could display text, and this class literal shows and can not play with audio sync, it can only be as a reference or prompting, so practical function is poor.
The utility model content
The purpose of this utility model is, a kind of big capacity visual information disk player is provided; It can solve the short problem of visual information CD single-deck reproduction time, and the program (as: instruction film etc.) of ultra-long time can be stored on the CD, makes a common visual information CD become truly vast capacity CD; And can reduce the cost of manufacture of program, described playing device is the playing device at described vast capacity CD, and it has solved the playback problem of described vast capacity CD; And described playing device not only can be play described vast capacity CD, and with the normal optical disk compatibility.
The technical solution of the utility model is:
A kind of big capacity visual information disk player, comprise: the optical disc servo device is characterized in that also comprising: central processing unit and decoding device, storage device, video decoder, audio frequency D, signal output apparatus and broadcast navigation module;
Described decoding device, storage device, video decoder, audio frequency D, signal output apparatus are coupled with described central processing unit respectively, and are controlled by described central processing unit;
Described broadcast navigation module is stored among the described storage device, and this broadcast navigation module operation back: described central processing unit is controlled described optical disc servo device and read voice data, text data, image data, the video data that is compressed on the visual information CD;
The data that read are sent to described central processing unit to described optical disc servo device and decoding device is decoded, and decoded voice data is through described audio frequency D/A rotary device, signal output apparatus output; Decoded text data is exported through described signal output apparatus; Described central processing unit makes the voice data of output and text data synchronous.
Described signal output apparatus comprises: ordinary video output port, S video-out port and audio output port.
Device described in the utility model also comprises: boombox, earphone interface; Described audio signal can be exported from boombox, or exports from earphone interface.
Device described in the utility model also comprises: re-reading module, and this module can be carried out re-reading to the voice messaging of playing, and background picture data and lteral data corresponding with described voice messaging when re-reading also repeat output.
Device described in the utility model also comprises: with read through model, should can follow the voice messaging of playing with read through model and read; That is: the audio-frequency information of a time span of audio output device output, voice data record device record a time span with pronunciation information frequently; Audio output device played in order voice messaging and with reading voice messaging forms effect comparison.
Device described in the utility model also comprises: input unit, display unit; Described input unit and the coupling of described central processing unit, input unit input control signal and selection instruction are given described central processing unit; Described display unit is connected with described signal output apparatus;
Wherein: described broadcast navigation module comprises: optical disc recognition module, user interactive module; Described storage device comprises data storage and program storage; Described broadcast navigation module is stored in the program storage,
Described optical disc recognition module operation back: described central processing unit is controlled described optical disc servo device the header file in the visual information CD is read, and discern the storage format of CD by label, if the label of CD conforms to the label of setting, then enter root, and read wherein header file, display piece header on described display unit; Show preview item afterwards;
Described user interactive module operation back: described central processing unit is controlled described optical disc servo device and is read menu file in the described root, order shows each one-level menu on described display unit, and prompting adopts NEXT or PREVIEWS that described one-level menu is selected; Wherein, the sequence number of establishing first one-level menu is x, then has: add 1 as selecting NEXT sequence number x, subtract 1 as selecting PREVIEWS sequence number x, if do not select NEXT or PREVIEWS then sequence number x is constant; The instruction that described input unit input is selected described each one-level menu;
After the one-level menu is selected, preserve corresponding sequence number, and show each second-level menu in this one-level menu, and prompting adopts RETURN to return, or adopt and select number described second-level menu to be selected, all corresponding one of each second-level menu is selected number; The instruction that described input unit input is selected described each second-level menu;
After second-level menu is selected, preserve corresponding selection number, and show each programm name in this second-level menu, and prompting adopts RETURN to return, or adopt program number that required programs is selected, all corresponding program number of each programm name; The instruction that described input unit input is selected described each program;
After required programs is selected, preserve corresponding program number, read the picture file in the root, play background frame; And have: if background frame is a static map, then: enter next step after the decoding and displaying; If background frame is dynamic figure, then: enter next step again after needing should dynamic figure to play, and reservation last frame picture;
To the sequence number of preserving, select number, program number and root title handle, and generates the program file name; Read the file with this program file name in described root, audio compression information and text message in this document are read in internal memory, the audio compression information data in the played file is according to the text message of the time showing correspondence of voice playing;
In the process of audio plays compressed information, prompting is to the selection of RETURN, NEXT and PREVIEWS; If: select RETURN, then can interrupt the broadcast of audio compression information at any time; Select NEXT and PREVIEWS can carry out program and switch,, then ignore if corresponding program file does not find;
If when background frame was play, its NEXT item was effective, then audio compression information finishes follow-up continued broadcasting and puts this, till not having the NEXT item, in order to realize continuous broadcast; Replace displaying video and audio compression information; If background frame is provided with delay time when playing but does not have the NEXT item, then return automatically after the time-delay.
Described input unit comprises: keyboard and have the remote controller of button.
Device described in the utility model also comprises: LCD, button and button drive loop, remote controller, described button and remote controller drive the loop with described button respectively and link, and the user is by described button or the remote controller realization operation to described device; Described liquid crystal display displays mode of operation.
Device described in the utility model also comprises: re-reading on ﹠ off switch, repeating key, automatically play button, with reading to contrast key, variable speed bond, fast forward button, rewind down key.
Device described in the utility model also comprises: Microphone, large-screen lc display panel; External voice through this Microphone input, is delivered to central processing unit and decoder module by microphone after the amplification, under its control, can realize Karaoke and record function;
Described large-screen lc display panel shows the broadcast state and the re-reading state of described device.
Device described in the utility model also comprises: 2 grades of speed changing function modules, these 2 grades of speed changing function modules have realized that by the control program of central processing unit and decoder the MP3 laser disc is re-reading.
Device described in the utility model also comprises: timing start-up module, timing shutdown module; Deposit switching on and shutting down information in the clock circuit memory, clock chip memory based time point of meeting and clock constantly carry out the time contrast then, when clock and input information memory time are consistent, just send interrupt signal and give on/off circuit, on/off circuit starts power supply immediately and realizes the timed power on/off function.
Device described in the utility model also comprises: it can realize the synchronous broadcast of MP3 or WMA audio file and full frame literal, picture by using video disc as carrier, can realize that also video and audio content alternately broadcasts.
The beneficial effects of the utility model are, but realized playing big capacity visual information video disc based on the extended attribute of DVD player, by increasing identification, video disc diagnosis, broadcast navigation, information decoding, the interactive operation functional module of DVD player, make DVD player can realize playing the function of 40 hours visual information video discs to playing big capacity visual information video disc.This big capacity visual information video disc adopts novel information flow media content mode to comprise MPEG-1, MPEG-2, MPEG-4, MP3, RMFF, WMA, WAV and text, character library information format.The stream media information of the form that these are different is made into the video disc that comprises big capacity visual information by the compound mode of setting.The utility model has utilized the graphical information superimposed characteristics of DVD player fully, by to the setting again of video disc form, realized on a CD, can playing the function of 40 hours content viewables, greatly improved the capacity of video disc display message, made a breakthrough at the multimedia CD teaching link of DVD player.This use new device has also been realized re-reading to CD.
Description of drawings
Fig. 1 is the structured flowchart of the utility model device;
Fig. 2 is the utility model menu FB(flow block);
Fig. 3 is a second-level menu FB(flow block) described in the utility model;
Fig. 4 is the structured flowchart of the utility model device embodiment.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model:
At first introduce the employed CD of present embodiment.Information in this CD comprises: audio content, the visual content of courses, wherein audio content is with MP3 (MPEG Layer 3) or the compression of WMA (Windows MediaAudio) form, the visual content of courses is deposited with text, picture, video mode, image content can be deposited with forms such as BMP, JPG, GIF or compress-encrypt form, and video content can be deposited with forms such as MPEG1, AVI or compress-encrypt form; On CD, need to deposit Play Control information in addition, so that in the audio plays process, show corresponding content viewable.
The various contents of courses are divided into the lower part deposit:
1, file header;
2, character library;
3, the text that shows with stream;
4, mp3 data.
The label of CD: YuXing MWIN (being used to discern this new form), file system adopts ISO9660, and all appended documents all are kept in the ELP catalogue of root.
A kind of big capacity visual information disk player (as Fig. 1), comprise: the optical disc servo device is characterized in that also comprising: central processing unit and decoding device, storage device, video decoder, audio frequency D, signal output apparatus and broadcast navigation module;
Described decoding device, storage device, video decoder, audio frequency D, signal output apparatus are coupled with described central processing unit respectively, and are controlled by described central processing unit;
Described broadcast navigation module is stored among the described storage device, and this broadcast navigation module operation back: described central processing unit is controlled described optical disc servo device and read voice data, text data, image data, the video data that is compressed on the visual information CD;
The data that read are sent to described central processing unit to described optical disc servo device and decoding device is decoded, and decoded voice data is through described audio frequency D/A rotary device, signal output apparatus output; Decoded text data is exported through described signal output apparatus; Described central processing unit makes the voice data of output and text data synchronous.
Described signal output apparatus comprises: ordinary video output port, S video-out port and audio output port.
Device described in the utility model also comprises: boombox, earphone interface; Described audio signal can be exported from boombox, or exports from earphone interface.
Device described in the utility model also comprises: re-reading module, and this module can be carried out re-reading to the voice messaging of playing, and background picture data and lteral data corresponding with described voice messaging when re-reading also repeat output.
Device described in the utility model also comprises: with read through model, should can follow the voice messaging of playing with read through model and read; That is: the audio-frequency information of a time span of audio output device output, voice data record device record a time span with pronunciation information frequently; Audio output device played in order voice messaging and with reading voice messaging forms effect comparison.
Device described in the utility model also comprises: input unit, display unit; Described input unit and the coupling of described central processing unit, input unit input control signal and selection instruction are given described central processing unit; Described display unit is connected with described signal output apparatus;
Wherein: described broadcast navigation module comprises: optical disc recognition module, user interactive module; Described storage device comprises data storage and program storage; Described broadcast navigation module is stored in the program storage,
Shown in Fig. 2,3, described optical disc recognition module operation back: described central processing unit is controlled described optical disc servo device the header file in the visual information CD is read, and discern the storage format of CD by label, if the label of CD conforms to the label of setting, then enter root, and read wherein header file, display piece header on described display unit; Show preview item afterwards;
Described user interactive module operation back: described central processing unit is controlled described optical disc servo device and is read menu file in the described root, order shows each one-level menu on described display unit, and prompting adopts NEXT or PREVIEWS that described one-level menu is selected; Wherein, the sequence number of establishing first one-level menu is x, then has: add 1 as selecting NEXT sequence number x, subtract 1 as selecting PREVIEWS sequence number x, if do not select NEXT or PREVIEWS then sequence number x is constant; The instruction that described input unit input is selected described each one-level menu;
After the one-level menu is selected, preserve corresponding sequence number, and show each second-level menu in this one-level menu, and prompting adopts RETURN to return, or adopt and select number described second-level menu to be selected, all corresponding one of each second-level menu is selected number; The instruction that described input unit input is selected described each second-level menu;
After second-level menu is selected, preserve corresponding selection number, and show each programm name in this second-level menu, and prompting adopts RETURN to return, or adopt program number that required programs is selected, all corresponding program number of each programm name; The instruction that described input unit input is selected described each program;
After required programs is selected, preserve corresponding program number, read the picture file in the root, play background frame; And have: if background frame is a static map, then: enter next step after the decoding and displaying; If background frame is dynamic figure, then: enter next step again after needing should dynamic figure to play, and reservation last frame picture;
To the sequence number of preserving, select number, program number and root title handle, and generates the program file name; Read the file with this program file name in described root, audio compression information and text message in this document are read in internal memory, the audio compression information data in the played file is according to the text message of the time showing correspondence of voice playing;
In the process of audio plays compressed information, prompting is to the selection of RETURN, NEXT and PREVIEWS; If: select RETURN, then can interrupt the broadcast of audio compression information at any time; Select NEXT and PREVIEWS can carry out program and switch,, then ignore if corresponding program file does not find;
If when background frame was play, its NEXT item was effective, then audio compression information finishes follow-up continued broadcasting and puts this, till not having the NEXT item, in order to realize continuous broadcast; Replace displaying video and audio compression information; If background frame is provided with delay time when playing but does not have the NEXT item, then return automatically after the time-delay.
Described input unit comprises: keyboard and have the remote controller of button.
Device described in the utility model also comprises: LCD, button and button drive loop, remote controller, described button and remote controller drive the loop with described button respectively and link, and the user is by described button or the remote controller realization operation to described device; Described liquid crystal display displays mode of operation.
Device described in the utility model also comprises: re-reading on ﹠ off switch, repeating key, automatically play button, with reading to contrast key, variable speed bond, fast forward button, rewind down key.
Device described in the utility model also comprises: Microphone, large-screen lc display panel; External voice through this Microphone input, is delivered to central processing unit and decoder module by microphone after the amplification, under its control, can realize Karaoke and record function;
Described large-screen lc display panel shows the broadcast state and the re-reading state of described device.
Device described in the utility model also comprises: 2 grades of speed changing function modules, these 2 grades of speed changing function modules have realized that by the control program of central processing unit and decoder the MP3 laser disc is re-reading.
Device described in the utility model also comprises: timing start-up module, timing shutdown module; Deposit switching on and shutting down information in the clock circuit memory, clock chip memory based time point of meeting and clock constantly carry out the time contrast then, when clock and input information memory time are consistent, just send interrupt signal and give on/off circuit, on/off circuit starts power supply immediately and realizes the timed power on/off function.
Device described in the utility model also comprises: it can realize the synchronous broadcast of MP3 or WMA audio file and full frame literal, picture by using video disc as carrier, can realize that also video and audio content alternately broadcasts.
The utility model device as shown in Figure 1, wherein: big capacity visual information CD hereinafter is called the ELP dish.Central processing unit (CUP) obtains optical disc information by watching complex system, starts the ELP dish identification module in the video disc diagnostic system.If ELP dish, start the navigation system of ELP dish, start the operational module of ELP, read corresponding ELP file data according to user's operation requests, by the decoding and displaying module, graphical information and the text message process along with voice messaging is presented on the display unit.
Introduce the utility model device embodiment below in detail, it is except the reset circuit and Digital Signal Processing and servo system that include the ordinary numbers video disc player and all have, also further comprise: central processing unit and decoder, data storage, program storage, liquid crystal display and button drive loop, video decode loop and audio frequency D/A switch loop, in order to receive the remote control receiving loop of external remote control signal, present embodiment also includes built-in loudspeaker, and described audio frequency D/A switch loop links to each other with these built-in loudspeaker.
The workflow of present embodiment is as follows: after plugging in, machine is in holding state; Click mains switch, power initiation, complete machine powering.Program in central processing unit and the decoder fetch program memory, and begin to carry out.Play after putting into CD, the mode of operation during broadcast adopts new navigate mode fully, and key step is as follows: (shown in accompanying drawing two, three)
The first step: play head (first plays item), its Previews item (rather than NEXT item) is play in the back that finishes playing.
Second step: begin to enter automatically the one-level menu from dvd playback, the sequence number of first menu that runs in the broadcast is 0, adds 1 by the NEXT sequence number, subtracts 1 by the PREVIEWS sequence number, if do not have NEXT or PREVIEWS then sequence number is constant.Selection can not circulate between the menu.
The 3rd step: directly enter second-level menu after in the one-level menu, selecting, preserve and select number.Play item between one second-level menu; Second-level menu does not have NEXT and PREVIEWS.
The 4th step: select the back to play background frame in second-level menu, selection at this moment number saves as program number.If static map enters next step after the decoding and displaying immediately, do not wait for two seconds; If dynamically scheme, enter next step after then finishing playing, keep the last frame picture.
The 5th step: obtain the ELP filename according to the menu that is entered, computational methods are as follows:
" sequence number "+" "+" select number "+" program number "+" .ELP "
For example: the user selects 8 in the 5th one-level menu, selects the 13rd program then, the filename that obtains: 05-08-13.ELP.Open this file, fileinfo and text message are read in internal memory, the audio compression information data in the played file is according to the text of time showing correspondence.In audio plays compressed information process, the RETURN function is still effective, can interrupt the broadcast of audio compression information at any time, but NEXT and PREVIEWS function can only be used for switching each several part audio compression information and text data in the ELP file.If file does not find, then ignore.
The 6th step: effective if background frame is play the NEXT item of item, then audio compression information finishes follow-up continued broadcasting and puts this, till not having the NEXT item.This function is used for realizing continuous broadcast, replaces displaying video and audio compression information, and schematic diagram is shown in figure (two).The sequence number of the file of ELP2 and ELP3 and select number identically with ELP1 wherein, program number obtains according to the replay times of the PlayItem of correspondence.In playing the PlayItem process, can realize the navigation feature of this big capacity video disc, but reproducing function is cancelled.
The 7th step:, then return automatically after the time-delay if background frame broadcast item is provided with delay time but does not have the NEXT item.
The user realizes the operation to machine by the button, the remote controller that link to each other with liquid crystal display and button driving loop, plan the record function key range specially at remote controller, it is provided with 7 buttons, comprise: re-reading on ﹠ off switch, repeating key, automatically play button, with reading to contrast key, variable speed bond, fast forward button, rewind down key, simultaneously increase above-mentioned 7 record function buttons, make its desktop use and become a reality at product machine shell.
Behind selected required object, at first movement reads the signal on the CD, after amplification and digital signal processor processes, deliver to central processing unit and decoder, video data wherein is output ordinary video delivery outlet and S terminal delivery outlet after the decoding of video decode loop, audio frequency output output after the conversion of audio frequency D/A switch loop, and after power amplification, output to earphone, after power amplification, output to built-in loudspeaker again.
Common teaching product core control program only can be finished the played in order of single file in audio-video document.The utility model embodiment then expands controlled function, thereby supports a plurality of files of audio compressed data and content viewable to play simultaneously, reaches the teaching requirement.
Small-sized Mike's socket is arranged on the fuselage of present embodiment.External voice is imported through this by Mike, delivers to central processing unit and decoder module after the amplification, under its control, can realize Karaoke and record function.The large-screen lc display panel shows DVD player broadcast state and re-reading state, makes the product machine that the operation indication can be provided when desktop uses.
Present embodiment also is provided with 2 grades of speed changing functions simultaneously, has increased the MP3 record function, and it is re-reading to make the MP3 laser disc to realize, these are all revised by the control program of central processing unit and decoder and realize.
Present embodiment also is provided with timing start-up, timing shutdown.Device at first deposits switching on and shutting down information in the clock circuit memory, clock chip memory based time point of meeting and clock constantly carry out the time contrast then, in case clock and input information memory time are consistent, just send interrupt signal and give on/off circuit, on/off circuit starts power supply immediately and realizes the timed power on/off function.
The described a kind of special electronic education product of present embodiment, it can realize the synchronous broadcast of MP3 (or WMA) audio file and full frame literal, picture by using video disc as carrier, can realize that also video and audio content alternately broadcasts.
Effect of the present utility model is:
(1) hardware innovation: the abundant emerging company in the aspect of hardware product is by the lifting to the DVD player technology platform, realized that audio compressed files adds the writing on the blackboard function that displays the play synchronously, by the use of this technology, can make the storage capacity of ordinary numbers video disc player video disc improve 1 0-40 doubly.We have increased timing play function again on this basis, can regularly play the content of customization by consumer demand.Make the consumer more help operation, commercial value is bigger.
(2) software innovation: from the making aspect of software, it has accomplished low cost.Because the recording process of this software only needs a simple recording studio and common digital recorder to get final product.Post-production is finished by the programmer fully.Clear and the aesthetic measure of this software writing on the blackboard is higher than the production technique of DVD player software.The video content that can also intert in software mixes to be play.Especially be fit to English teaching.The advantage of this software maximum is big capacity and low cost.Can see teacher, because teacher is not professional performer after all, body language in the classroom can embodying aspect the DVD player laser disc fully, and teacher's image becomes a kind of decoration fully in the teaching software, and has played a kind of negative effect in the middle of teaching.
(3) potential significance: this innovation at first is the low capacity problem that has solved the DVD player laser disc to the eye, on the meaning of software development, it is indicating the arrival in big capacity multimedia video hybrid software epoch, because in the past owing to be subjected to the restriction of DVD player laser disc capacity, cause the necessary compression time of software development, so all at present DVD player software is all doing difficult point, emphasis explanation, is difficult to reach the effect of systematic teaching.Study carefully its behind reason all because the laser disc capacity limit causes.Adopted the software of abundant emerging mobile classroom platform development, slap-up this problem that solved.
(4) software development will be simpler: because teacher's explanation only needs recording to get final product, making links such as a large amount of finishing of video acquisition process, video recording, artistic design, camera work have been omitted, the play-back technology of the writing on the blackboard of text formatting has omitted a large amount of lantern slide manufacturing processes, only needs the typing text to get final product.The manufacturing process of software is finished by the programmer fully, and is also lower aspect the requiring of art designing, and only needs very simple art designing's work.The producer of general software company only need just can grasp software development technique through simple training process.
(5) cost will be lower: owing to omitted video acquisition process and lantern slide manufacturing process, cost is reduced significantly, add fairly simple programming process and art designing and make, make this development platform be very suitable for promoting.Because the increase of laser disc store information amount makes the platen cost reduce 10-40 significantly doubly.
Advantage of the present utility model is:
(1) the optimal protection that obtained of software product makes pirate loss drop to minimum owing to used dedicated play equipment to make.
(2) because OSD played in full screen technology has been used in the demonstration of writing on the blackboard, make the readability of literal increase substantially, because the raising of literal definition also makes each screen institute of TV the display text amount to have increased a lot.
(3) because the layering of background frame and text is handled, just can make software increase more abundanter background images, also need not increase cost.
(4) owing to used audio compression techniques to make the sound capacity increase under the 10-40 situation doubly, sound quality is not lowered.
(5) video, audio frequency and text mixing technology make and can intert a lot of video files in the middle of the software, make that the content of software is abundanter, and instructional function is stronger.
(6) advantage of Software Development Platform: have this development platform this software development technique is popularized rapidly.
Above embodiment only is used to illustrate the utility model, but not is used to limit the utility model.
Claims (13)
1. one kind big capacity visual information disk player, comprise: the optical disc servo device is characterized in that also comprising: central processing unit and decoding device, storage device, video decoder, audio frequency D, signal output apparatus and broadcast navigation module;
Described decoding device, storage device, video decoder, audio frequency D, signal output apparatus are coupled with described central processing unit respectively, and are controlled by described central processing unit;
Described broadcast navigation module is stored among the described storage device, and this broadcast navigation module operation back: described central processing unit is controlled described optical disc servo device and read voice data, text data, image data, the video data that is compressed on the visual information CD;
The data that read are sent to described central processing unit to described optical disc servo device and decoding device is decoded, and decoded voice data is through described audio frequency D/A rotary device, signal output apparatus output; Decoded text data is exported through described signal output apparatus; Described central processing unit makes the voice data of output and text data synchronous.
2. a kind of big capacity visual information disk player according to claim 1 is characterized in that described signal output apparatus comprises: ordinary video output port, S video-out port and audio output port.
3. a kind of big capacity visual information disk player according to claim 2 is characterized in that also comprising: boombox, earphone interface; Described audio signal can be exported from boombox, or exports from earphone interface.
4. a kind of big capacity visual information disk player according to claim 1, it is characterized in that also comprising: re-reading module, this module can be carried out re-reading to the voice messaging of playing, background picture data and lteral data corresponding with described voice messaging when re-reading also repeat output.
5. a kind of big capacity visual information disk player according to claim 4 is characterized in that also comprising: with read through model, should can follow the voice messaging of playing with read through model and read; That is: the audio-frequency information of a time span of audio output device output, voice data record device record a time span with pronunciation information frequently;
Audio output device played in order voice messaging and with reading voice messaging forms effect comparison.
6. a kind of big capacity visual information disk player according to claim 1 is characterized in that also comprising: input unit, display unit; Described input unit and the coupling of described central processing unit, input unit input control signal and selection instruction are given described central processing unit; Described display unit is connected with described signal output apparatus;
Wherein: described broadcast navigation module comprises: optical disc recognition module, user interactive module; Described storage device comprises data storage and program storage; Described broadcast navigation module is stored in the program storage,
Described optical disc recognition module operation back: described central processing unit is controlled described optical disc servo device the header file in the visual information CD is read, and discern the storage format of CD by label, if the label of CD conforms to the label of setting, then enter root, and read wherein header file, display piece header on described display unit; Show preview item afterwards;
Described user interactive module operation back: described central processing unit is controlled described optical disc servo device and is read menu file in the described root, order shows each one-level menu on described display unit, and prompting adopts NEXT or PREVIEWS that described one-level menu is selected; Wherein, the sequence number of establishing first one-level menu is x, then has: add 1 as selecting NEXT sequence number x, subtract 1 as selecting PREVIEWS sequence number x, if do not select NEXT or PREVIEWS then sequence number x is constant; The instruction that described input unit input is selected described each one-level menu;
After the one-level menu is selected, preserve corresponding sequence number, and show each second-level menu in this one-level menu, and prompting adopts RETURN to return, or adopt and select number described second-level menu to be selected, all corresponding one of each second-level menu is selected number; The instruction that described input unit input is selected described each second-level menu;
After second-level menu is selected, preserve corresponding selection number, and show each programm name in this second-level menu, and prompting adopts RETURN to return, or adopt program number that required programs is selected, all corresponding program number of each programm name; The instruction that described input unit input is selected described each program;
After required programs is selected, preserve corresponding program number, read the picture file in the root, play background frame; And have: if background frame is a static map, then: enter next step after the decoding and displaying; If background frame is dynamic figure, then: enter next step again after needing should dynamic figure to play, and reservation last frame picture;
To the sequence number of preserving, select number, program number and root title handle, and generates the program file name; Read the file with this program file name in described root, audio compression information and text message in this document are read in internal memory, the audio compression information data in the played file is according to the text message of the time showing correspondence of voice playing;
In the process of audio plays compressed information, prompting is to the selection of RETURN, NEXT and PREVIEWS; If: select RETURN, then can interrupt the broadcast of audio compression information at any time; Select NEXT and PREVIEWS can carry out program and switch,, then ignore if corresponding program file does not find;
If when background frame was play, its NEXT item was effective, then audio compression information finishes follow-up continued broadcasting and puts this, till not having the NEXT item, in order to realize continuous broadcast; Replace displaying video and audio compression information; If background frame is provided with delay time when playing but does not have the NEXT item, then return automatically after the time-delay.
7. a kind of big capacity visual information disk player according to claim 6, it is characterized in that: described input unit comprises: keyboard and have the remote controller of button.
8. a kind of big capacity visual information disk player according to claim 6, it is characterized in that also comprising: LCD, button and button drive loop, remote controller, described button and remote controller drive the loop with described button respectively and link, and the user is by described button or the remote controller realization operation to described device; Described liquid crystal display displays mode of operation.
9. a kind of big capacity visual information disk player according to claim 6 is characterized in that also comprising: re-reading on ﹠ off switch, repeating key, automatically play button, with reading to contrast key, variable speed bond, fast forward button, rewind down key.
10. a kind of big capacity visual information disk player according to claim 6 is characterized in that also comprising: Microphone, large-screen lc display panel; External voice through this Microphone input, is delivered to central processing unit and decoder module by microphone after the amplification, under its control, can realize Karaoke and record function;
Described large-screen lc display panel shows the broadcast state and the re-reading state of described device.
11. a kind of big capacity visual information disk player according to claim 6 is characterized in that also comprising: 2 grades of speed changing function modules, these 2 grades of speed changing function modules have realized that by the control program of central processing unit and decoder the MP3 laser disc is re-reading.
12. a kind of big capacity visual information disk player according to claim 6 is characterized in that also comprising: timing start-up module, timing shutdown module; Deposit switching on and shutting down information in the clock circuit memory, clock chip memory based time point of meeting and clock constantly carry out the time contrast then, when clock and input information memory time are consistent, just send interrupt signal and give on/off circuit, on/off circuit starts power supply immediately and realizes the timed power on/off function.
13. a kind of big capacity visual information disk player according to claim 6, it is characterized in that also comprising: it is by using video disc as carrier, can realize the synchronous broadcast of MP3 or WMA audio file and full frame literal, picture, can realize that also video and audio content alternately broadcasts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03262321 CN2627766Y (en) | 2003-05-30 | 2003-05-30 | Large capacity visual information CD playing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03262321 CN2627766Y (en) | 2003-05-30 | 2003-05-30 | Large capacity visual information CD playing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2627766Y true CN2627766Y (en) | 2004-07-21 |
Family
ID=34255572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03262321 Expired - Fee Related CN2627766Y (en) | 2003-05-30 | 2003-05-30 | Large capacity visual information CD playing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2627766Y (en) |
-
2003
- 2003-05-30 CN CN 03262321 patent/CN2627766Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1107310C (en) | Storage medium playback system and method | |
| US7830570B2 (en) | Device and method for edition of moving picture data | |
| CN1165897C (en) | Information recording medium, and recording device for said medium, and replaying device thereof | |
| US20070031121A1 (en) | Information storage medium, information playback apparatus, information playback method, and information playback program | |
| US20130142496A1 (en) | Information recording and reproducing method using management information including mapping information | |
| CA2260993A1 (en) | Non-linear editing system for home entertainment environments | |
| CN1910696A (en) | Storage medium having interactive graphic stream and apparatus for reproducing the same | |
| CN1475076A (en) | Voice/video information recording/reproducing device and method therefor | |
| CN1655270A (en) | Method and device for accessing content | |
| CN1630907A (en) | Information storage medium containing display mode information, and reproducing apparatus and method | |
| CN101059984A (en) | Method for reproducing storage medium recording text-based subtitle stream, | |
| CN101309378B (en) | Broadcast receiving apparatus and method for replaying content thereby | |
| CN102378060A (en) | Method, device and system for browsing audio-video programs | |
| CN201536398U (en) | Household video-audio on-demand system and equipment | |
| CN2627766Y (en) | Large capacity visual information CD playing device | |
| CN201607950U (en) | Multimedia player | |
| KR100577052B1 (en) | Potable apparatus for moving pictures and its service method | |
| CN1801913A (en) | Universal video player | |
| CN2845091Y (en) | Multiple format compatible digit video CD player with high resolution | |
| CN2638146Y (en) | Digitalized teaching product capable of broadcasting large capacity audiovisual data and foreign language learning function | |
| CN2729866Y (en) | Multifunction multi-media player | |
| CN2641679Y (en) | Recording/playing type projector | |
| CN1534666A (en) | Information recording method, information reproducing apparatus and information storage medium | |
| US20070044124A1 (en) | Mobile electronic device and data processing system utilizing the same | |
| CN201600910U (en) | Evd disc player |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |