CN101546110B - Projecting camera and method for recording information thereof - Google Patents
Projecting camera and method for recording information thereof Download PDFInfo
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- CN101546110B CN101546110B CN2008101025621A CN200810102562A CN101546110B CN 101546110 B CN101546110 B CN 101546110B CN 2008101025621 A CN2008101025621 A CN 2008101025621A CN 200810102562 A CN200810102562 A CN 200810102562A CN 101546110 B CN101546110 B CN 101546110B
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Abstract
The invention provides a projection camera and a method for recording information thereof, wherein the projection camera comprises an audio signal receiving unit for receiving sound and converting the sound into an audio signal, a projection signal receiving unit for receiving a projection signal, a signal processing unit for compressing the projection signal and the audio signal into a video flow with a predetermined format, and a video flow output unit for outputting the video flow. By adopting the technology provided by the optimized embodiment of the invention, the invention can directly obtain a digital projection signal, and meanwhile, a microphone is built in the projection camera or a projection camera remote controller, therefore, the project camera is easy to hoist and only needs to add a corresponding interface and a signal processing unit without using an expensive camera head so that the content of projection, the explanation of a hierophant and the voice interacted by people on site can be recorded more conveniently to be shared by more people.
Description
Technical field
The present invention relates to projector's technology, be meant the method for a kind of projector and record projector information especially.
Background technology
Projector has been widely used in occasions such as lecture, training, meeting and news conference now, it is exactly to want to allow more people see oneself to want the content of showing that people use the reason of projector, but because the restriction in time and space, a lot of people can't come to participation personally, and therefore pressing for a kind of technology can get off to be shared with more people the content of projection, interpreter's explanation and with the voice record of people's On-the-spot Interaction.
And on-the-spot shooting needs extra picture pick-up device and photographer, and project content disturbs by on-the-spot extraneous light and projector's performance (as brightness and sharpness), causes image unintelligible, and needs post-production.The common lantern slide that is adopted (PPT, PowerPoint) technology then can only be limited to the PPT projection, and distinctive aside recording function must be finished during PPT edits; Other form such as Word, EXCEL, displaying video etc. all can't reproduce lecturer's on-the-spot voice, the interaction that also can't write down on-the-spot lecturer and people.
Find that by analyzing the inventor also there is following defective in prior art, that is, the video that does not verily write down lecturer's live play and explanation voice and with people's interaction content.
Summary of the invention
The purpose of one embodiment of the invention provides the method for a kind of projector and record projector information, be used for solving prior art, under the voice record of project content, interpreter's explanation and On-the-spot Interaction, be shared with in more people's the process, need the defective of the loaded down with trivial details technology of more equipment, personnel or complexity.
But the embodiment of the invention provides a kind of projector of record audio video, comprising: the sound signal receiving element is used to receive sound, and this sound is converted into sound signal; Projection signal's receiving element is used to receive projection signal; Signal processing unit, being used for described projection signal, described audio signal compression is the video flowing of predetermined format; The video flowing output unit is used to export described video flowing.
In the described projector, described projector also comprises storage unit, is connected with described video flowing output unit, is used to deposit described video flowing.
In the described projector, described video flowing output unit comprises: data bus or USB (universal serial bus);
Described storage unit is connected by following dual mode with the video flowing output unit: described storage unit is positioned at projector inside, and receives described video flowing by described data bus; Perhaps, described storage unit is positioned at described projector outside, receives described video flowing by described USB (universal serial bus).
In the described projector, described projector also comprises playback unit, is connected with described storage unit, is used to take out described video flowing, and decompress(ion) is a projection video.
Described projector also comprises: projection signal's converting unit, and be used for that described projection signal is converted to the form of supporting when front projection machine and form projection video, perhaps receive projection video from described playback unit; Projection signal's output unit is used to play described projection video.
Described projector also comprises one or more buttons; Wherein, described button is used for triggering: begin to record, time-out and hold function.
Described projector also comprises projector's telepilot, and described projector telepilot comprises one or more buttons; Wherein, described button is used for triggering: begin to record, time-out and hold function.
A kind of method of record audio video, projector receives after sound signal and the projection signal, and described sound signal and projection signal's compression are formed video flowing.
In the described method, described projector receives after sound signal and the projection signal, and this projector plays this projection video after described projection signal is converted to projection video.
In the described method, will also comprise after described sound signal and the projection signal's compression formation video flowing: judge whether to receive and suspend or halt instruction, if then stop described compression; Otherwise continue to receive described sound signal and the projection signal that comes from the outside.
In the described method, also comprise in the process with described sound signal and projection signal's compression formation video flowing: with the described projection signal of frequency acquisition of the predetermined frame number of per second and the described sound signal that comes from the outside.
Use equipment and technology that the above preferred embodiment of the present invention provides, directly obtain digitized projection signal, microphone is built in projector or the projector's telepilot simultaneously, therefore projector's lifting easily, and only be required to be projector and increase the corresponding interface and signal processing unit, and need not to use expensive shooting equipment, make and can be more conveniently get off to be shared with more people with the content of projection, interpreter's explanation and with the voice record of people's On-the-spot Interaction.
Description of drawings
But Fig. 1 is projector's inner structure synoptic diagram of only realizing the record audio video capability in the preferred embodiment of the present invention;
Fig. 2 is projector's inner structure synoptic diagram of realizing repertoire in the preferred embodiment of the present invention;
But Fig. 3 is the method flow synoptic diagram of record audio video in the preferred embodiment of the present invention.
Embodiment
For making purpose of the present invention, technical characterictic and implementation result clearer, below in conjunction with the accompanying drawings and the specific embodiments the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, but the projector of the record audio video in the preferred embodiment provided by the invention should comprise at least with lower unit: sound signal receiving element 101, projection signal's receiving element 102, signal processing unit 103 and video flowing output unit 104.
Sound signal receiving element 101, signal processing unit 103 and video flowing output unit 104 are linked in sequence successively, and signal processing unit 103 also is connected with projection signal receiving element 102 and receives projection signal from this unit.Wherein,
Sound signal receiving element 101 is used for, and receives the sound that comes from the outside, and further this sound is converted into sound signal;
Sound signal receiving element 101 can be a microphone, receives outside sound, and generates simulating signal, again this simulating signal is converted to digital signal by analog to digital converter (A/D); Or other can realize the components and parts of said function.Outside sound mainly be meant the interpreter explanation and with the voice of people's On-the-spot Interaction.
Projection signal's receiving element 102 is used for, and receives projection signal.Projection signal is usually from external unit, can be RGB (RGB) color mode or Video Graphics Array (VGA from computing machine, VideoGraphic Array) signal of isotype, can be from the AV terminal of projector or the signal of S terminal, perhaps from the signal of digital visual interface (DVI, the Digital Visual Interface) pattern of digital camera and digital high-definition signal etc.
Wherein, in the process of compression, preferably can be the described projection signal of frequency acquisition with about 30 frames of per second, and explanation person's sound and on-the-spot voice.Be not limited to a certain specific video form through the formed video flowing of overcompression, can be MP4 (MPEG-4Part 14), windows media video (WMV, the video flowing of the various forms such as (AVI, Audio Video Interleave) of audio frequency video signal interleaving access Windows Media Video).
Video flowing output unit 104 is used for, will be from the video flowing output of signal processing unit 103; Video flowing output unit 104 can be various types of interfaces, for example can be data bus, USB (universal serial bus) (USB, Universal Serial Bus) interface, infrared interface and other various types of IO interfaces; Simultaneously, be used for and leave specific memory in from the video flowing of signal processing unit 103, the embodiment of the invention has adopted storage unit 108 to deposit video flowing, described storage unit 108 can be built-in flash memory, hard disk, safe digital card (SD, Secure Digital Card) card or other have the element of memory function, obtain video flowing from video flowing output unit 104 by described data bus; Or external storer, by described USB (universal serial bus), promptly USB interface is deposited described video flowing.
In order to realize the function of record audio video, among the present invention, in projector or projector's telepilot, increase one or more buttons; Perhaps in projector or projector's telepilot built-in menu, increase several menu options; The function of button or menu option should comprise at least: begin to record, suspend, stop etc.; After trigger button or the selected menu option, the instruction of generation arrives the firmware (FirmWare) be positioned at projector inside, and firmware comprises the instruction interface of the correspondence that is used to control each unit, and this instruction interface sends to corresponding unit with instruction.
For example, if the user selects to begin to record, then receive instruction and arrive projection signal's receiving element 102 through the instruction interface in the firmware, projection signal's receiving element 102 begins to receive projection signal according to this reception instruction; Signal processing unit 103 is received condensed instruction and is then begun to compress projection signal and sound signal.
A preferred embodiment realizing the technology of the present invention has more than been described, projector provided by the invention also provides playback unit 105, be connected with storage unit 108, be used for will compression the video flowing decompress(ion) generate normal projection video (Voice ﹠ Video signal), and the signal input part that outputs to this projector carries out playback.
The user can export video stream stored and deposit and carry out playback in the computing machine by video flowing output unit 104, also can be by the playback unit 105 that increases, use the content of recording when the front projection machine playback, need add this moment such as the corresponding button and function, for example broadcast, F.F., rewind down, convergent-divergent etc. in projector's firmware and telepilot.
Projector among the present invention when realizing the object of the invention, has still kept the original function module of projector, comprises the projection signal's converting unit 106 and the projection signal's output unit 107 that are linked in sequence; And described playback unit 105 is connected with projection signal converting unit 106.Wherein,
Projection signal's converting unit 106 is used for, and will be converted to the form of supporting when front projection machine from the projection signal of projection signal receiving unit 102, forms projection video, and sends to projection signal's output unit 107.
Projection signal's output unit 107 is used for, and described projection video is play.
In the process of playback, playback unit 105 generates normal projection video with stored video flowing decompress(ion) in the video flowing output unit 104, output to projection signal's converting unit 106, this projection signal's converting unit 106 sends to projection signal's output unit 107 with described projection video and plays.
But the inner structure of the projector of record audio video has more than been described, corresponding with this projector, but the present invention also provides a kind of method of record audio video.
As shown in Figure 3, may further comprise the steps,
If storer is normal and the space is enough, then changes step 202, otherwise change step 206.
Step 203. forms video flowing with sound signal and projection signal's compression, leaves in the video stream file.In the process of compression, preferably can be the described projection signal of frequency acquisition with about 30 frames of per second, and explanation person's sound and on-the-spot voice.Being not limited to a certain specific video form through the formed video flowing of overcompression, can be the video flowing of various forms such as MP4, WMV, AVI.
Use the technology that the above preferred embodiment of the present invention provides, directly obtain digitized projection signal, microphone is built in projector or the projector's telepilot simultaneously, therefore projector's lifting easily, and only be required to be projector and increase the corresponding interface and signal processing unit, and need not to use expensive shooting equipment, make the content with projection, interpreter's that can be more convenient explanation and get off to be shared with more people with the voice record of people's On-the-spot Interaction.
Should be noted that above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, all parameter values can be according to the actual conditions adjustment, and in this rights protection scope.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spiritual scope of technical solution of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (11)
1. but the projector of a record audio video is characterized in that, comprising:
The sound signal receiving element is used to receive sound, and this sound is converted into sound signal;
Projection signal's receiving element is used to receive projection signal;
Signal processing unit, being used for described projection signal, described audio signal compression is the video flowing of predetermined format;
The video flowing output unit is used to export described video flowing.
2. projector according to claim 1 is characterized in that described projector also comprises storage unit, is connected with described video flowing output unit, is used to deposit described video flowing.
3. projector according to claim 2 is characterized in that, described video flowing output unit comprises: data bus or USB (universal serial bus);
Described storage unit is connected by following dual mode with the video flowing output unit:
Described storage unit is positioned at projector inside, and receives described video flowing by described data bus;
Perhaps, described storage unit is positioned at described projector outside, receives described video flowing by described USB (universal serial bus).
4. projector according to claim 2 is characterized in that described projector also comprises playback unit, is connected with described storage unit, is used to take out described video flowing, and decompress(ion) is a projection video.
5. projector according to claim 4 is characterized in that, described projector also comprises:
Projection signal's converting unit is used for that described projection signal is converted to the form of supporting when front projection machine and forms projection video, perhaps receives the projection video from described playback unit;
Projection signal's output unit is used to play described projection video.
6. projector according to claim 1 is characterized in that described projector also comprises one or more buttons; Wherein,
Described button is used for triggering: begin to record, time-out and hold function.
7. projector according to claim 1 is characterized in that described projector also comprises projector's telepilot, and described projector telepilot comprises one or more buttons; Wherein,
Described button is used for triggering: begin to record, time-out and hold function.
8. the method for a record audio video is characterized in that, projector receives after sound signal and the projection signal, and described sound signal and projection signal's compression are formed video flowing.
9. method according to claim 8 is characterized in that, described projector receives after sound signal and the projection signal, and this projector plays this projection video after described projection signal is converted to projection video.
10. method according to claim 8 is characterized in that, will also comprise after described sound signal and the projection signal's compression formation video flowing:
Judge whether to receive and suspend or halt instruction, if then stop described compression; Otherwise continue to receive described sound signal and the projection signal that comes from the outside.
11. method according to claim 8 is characterized in that, also comprises in the process with described sound signal and projection signal's compression formation video flowing:
With the described projection signal of frequency acquisition of the predetermined frame number of per second and the described sound signal that comes from the outside.
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| CN2008101025621A CN101546110B (en) | 2008-03-24 | 2008-03-24 | Projecting camera and method for recording information thereof |
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| CN2008101025621A CN101546110B (en) | 2008-03-24 | 2008-03-24 | Projecting camera and method for recording information thereof |
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| CN101546110B true CN101546110B (en) | 2011-05-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5495732B2 (en) * | 2009-11-23 | 2014-05-21 | オリンパスイメージング株式会社 | Photography equipment and photography equipment system |
| CN102547194A (en) * | 2011-12-13 | 2012-07-04 | 广东威创视讯科技股份有限公司 | Screen recording device |
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| CN1146562A (en) * | 1995-09-25 | 1997-04-02 | 三星航空产业株式会社 | Camera with sound record and replay device and control method thereof |
| CN1198831A (en) * | 1996-06-18 | 1998-11-11 | 索尼电影产品公司 | Synchronous controller |
| CN1226977A (en) * | 1997-06-30 | 1999-08-25 | 诺日士钢机株式会社 | Image processor and recording medium bearing voice code image |
| CN2583702Y (en) * | 2002-12-13 | 2003-10-29 | 韩亮 | Micro multi-media demonstration stand |
| CN2916849Y (en) * | 2006-04-06 | 2007-06-27 | 万钟济 | Media player with projection display function |
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- 2008-03-24 CN CN2008101025621A patent/CN101546110B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146562A (en) * | 1995-09-25 | 1997-04-02 | 三星航空产业株式会社 | Camera with sound record and replay device and control method thereof |
| CN1198831A (en) * | 1996-06-18 | 1998-11-11 | 索尼电影产品公司 | Synchronous controller |
| CN1226977A (en) * | 1997-06-30 | 1999-08-25 | 诺日士钢机株式会社 | Image processor and recording medium bearing voice code image |
| CN2583702Y (en) * | 2002-12-13 | 2003-10-29 | 韩亮 | Micro multi-media demonstration stand |
| CN2916849Y (en) * | 2006-04-06 | 2007-06-27 | 万钟济 | Media player with projection display function |
Non-Patent Citations (1)
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| JP平6-82911A 1994.03.25 |
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