CN100377588C - Projector apparatus capable of synchronous coding image and sound to synchronous broadcast document for audio-video - Google Patents
Projector apparatus capable of synchronous coding image and sound to synchronous broadcast document for audio-video Download PDFInfo
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- CN100377588C CN100377588C CNB2005100848420A CN200510084842A CN100377588C CN 100377588 C CN100377588 C CN 100377588C CN B2005100848420 A CNB2005100848420 A CN B2005100848420A CN 200510084842 A CN200510084842 A CN 200510084842A CN 100377588 C CN100377588 C CN 100377588C
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 61
- 238000012545 processing Methods 0.000 claims abstract description 65
- 230000005236 sound signal Effects 0.000 claims abstract description 17
- 238000000605 extraction Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 18
- 238000004020 luminiscence type Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 11
- 238000012552 review Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 5
- 206010023118 Jamais vu Diseases 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The present invention relates to a projector apparatus capable of synchronous coding image and sound to a synchronous broadcast document for audio video, which comprises a receiving unit, a first and a second processing units, a projection unit, a recording unit and a coding unit for audio video, wherein the receiving unit receives and outputs first image signals; the first processing unit is connected with the receiving unit; the first processing unit receives and processes the first image signals in order to output second image signals; the projection unit is electrically connected with the first processing unit, and the projection unit receives the second image signals in order to project images corresponding to the second image signals on a wall; the recording unit records sound produced when a user explains the image corresponding to the second image signals in order to output first sound signals; the second processing unit is electrically connected with the recording unit, and the second processing unit receives and processes the first sound signals in order to output second sound signals; the coding unit for audio video is electrically connected with the first processing unit and the second processing unit, and the coding unit for audio video receives the second image signals and the second sound signals and carries out synchronous coding in order to output the synchronous broadcast document for audio video.
Description
Technical field
The present invention is relevant for a kind of projection arrangement, and is the projection arrangement of synchronous broadcast document for audio-video relevant for a kind of synchronizable coding image and sound particularly.
Background technology
Since the optical projection system invention, along with making rapid progress of development in science and technology, and be applied to various fields gradually, as be applied to amusement equipment and business equipment, in the convention speech, use image projection system to come the enlarging projection sheet, or be applied to the large-scale back projection type television set of coml.Present projection arrangement can be image output projection arrangement, object projection device and a transparency projection arrangement, with image output projection arrangement,
When image output projection arrangement was electrically connected with computer, image is exported projection arrangement can be with the image projection of computer to wall.In object projection device, as long as the user is seated in the material object of desiring to present (as file or article) in the image extraction scope of object projection device, get final product the image of (as file or article) in kind, and the picture of and amplification clear by the projection of outer projections device on the wall.With the transparency projection arrangement, the user can put a transparency on a projection platform, the light of transmission projection sheet amplified and be projected on the wall in the mode of optical design, with show one corresponding to the image of the content of transparency on wall.Wherein, the user can directly write on transparency, allows spectators see the process that the user writes from the wall epigraph under the platform, and is quite lively.
When the bulletin person utilized above-mentioned projection arrangement to carry out bulletin, the participant can have the bulletin written historical materials the bulletin person earlier under the platform.Therefore, on one side projection arrangement institute image projected can be seen in the participant scene under the platform, Yi Bian the sound of listening the bulletin person that the bulletin content is explained, and in the bulletin written historical materials, take notes.After the bulletin person had reported the bulletin written historical materials, the bulletin person perhaps can share the electronics shelves of current bulletin written historical materials bountifully to participant under the platform.Yet, when the participant will look back this part bulletin written historical materials and see bulletin written historical materials or its electronics shelves after a period of time, may forget originally for where and do such notes on the bulletin written historical materials, or can't understand the content of certain part in the bulletin documentation.Serious, even the front and back literary composition of bulletin documentation can't be connected, make the participant quite perplex.
Though have video camera to make video recording and to record in the scene at present, yet the audio-video document that video camera is exported is all very big, and the participant also can't carry and look back.
Even the participant utilizes the recording pen person's that records the bulletin privately sound to export a source of sound document, but the participant looks back this part bulletin written historical materials in the future, may produce and on one side listen the source of sound shelves and person's that part in saying the bulletin documentation of not knowing of the bulletin, equally cause participant's puzzlement.
Summary of the invention
In view of this, purpose of the present invention is exactly to be the projection arrangement of synchronous broadcast document for audio-video in that a kind of synchronizable coding image and sound are provided.It carries out in the bulletin process image and sound synchronous coding the bulletin person is the design of a synchronous broadcast document for audio-video, can allow participant's picture content with the aid of pictures on one side when in the future opening this part synchronous broadcast document for audio-video, and listen sound on one side corresponding to picture material.Thus, the participant can give the lively telepresenc of on-the-spot participant originally soon for change, and the purpose that reaches review, reviews and review.Thus, the Jamais Vu of not only avoiding the participant in the past when in the future looking back general bulletin documentation, to be produced, more can prevent the participant when looking back general bulletin documentation, produce in the future can't understand or can't before and after the puzzlement that connects of literary composition, promote the practicality of projection arrangement widely.
According to purpose of the present invention, proposing a kind of synchronizable coding image and sound is the projection arrangement of synchronous broadcast document for audio-video, comprises a receiving element, one first processing unit, a projecting unit, recording unit, one second processing unit and an audio-video coding unit.Receiving element receives and exports one first picture signal, and first processing unit is electrically connected with receiving element.First processing unit receives first picture signal and processing, to export one second picture signal.Projecting unit is electrically connected with first processing unit, receives second picture signal, to throw on pairing image to a wall of second picture signal.The sound of a user when explaining the pairing image of second picture signal is recorded in the recording unit, to export one first voice signal.Second processing unit is electrically connected with the recording unit, receives first voice signal and processing, to export a second sound signal.The phonotape and videotape coding unit is electrically connected with first processing unit and second processing unit, receives second picture signal and second sound signal and carries out synchronous coding, to export a synchronous broadcast document for audio-video.
According to a further object of the present invention, proposing a kind of synchronizable coding image and sound is the projection arrangement of synchronous broadcast document for audio-video, comprises an image extraction unit, one first processing unit, recording unit, one second processing unit and an audio-video coding unit.Image extraction unit is extracted the image of a material object, and to export one first picture signal, first processing unit is electrically connected with an image extraction unit and an outer projections device.First processing unit receives first picture signal and processing, to export one second picture signal at least to the outer projections device, the outer projections device is throwed on pairing image to a wall of second picture signal.The sound of a user when explaining the pairing image of second picture signal is recorded in the recording unit, to export one first voice signal.Second processing unit is electrically connected with the recording unit, receives first voice signal and processing, to export a second sound signal.The phonotape and videotape coding unit is electrically connected with first processing unit and second processing unit, receives second picture signal and second sound signal and carries out synchronous coding, to export a synchronous broadcast document for audio-video.
According to another object of the present invention, proposing a kind of synchronizable coding image and sound is the projection arrangement of synchronous broadcast document for audio-video, comprises a luminescence unit, a projecting unit, an image extraction unit, one first processing unit, recording unit, one second processing unit and an audio-video coding unit.Luminescence unit provides light to a transparency, and the light that projecting unit is crossed transparency with transmission amplifies and is projected on the wall, to show an image corresponding to the content of transparency on the wall.Image extraction unit is extracted image, to export one first picture signal.First processing unit is electrically connected with image extraction unit, receives first picture signal and processing, to export one second picture signal.The sound of a user when explaining the pairing image of second picture signal is recorded in the recording unit, to export one first voice signal.Second processing unit is electrically connected with the recording unit, receives first voice signal and processing, to export a second sound signal.The phonotape and videotape coding unit is electrically connected with first processing unit and second processing unit, receives second picture signal and second sound signal and carries out synchronous coding, to export a synchronous broadcast document for audio-video.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail as follows:
Figure 1A represents that according to the synchronizable coding image of embodiments of the invention one and sound be the calcspar of projection arrangement, electronic installation and the medium of synchronous broadcast document for audio-video.
Figure 1B represents that according to the synchronizable coding image of embodiments of the invention one and sound be the projection arrangement of synchronous broadcast document for audio-video and the stereogram of electronic installation.
Fig. 2 A represents according to the synchronizable coding image of embodiments of the invention two and sound to be the calcspar of projection arrangement, outer projections device and the medium of synchronous broadcast document for audio-video.
Fig. 2 B represents according to the synchronizable coding image of embodiments of the invention two and sound to be the stereogram of projection arrangement, material object and the outer projections device of synchronous broadcast document for audio-video.
Fig. 3 A represents that according to the synchronizable coding image of embodiments of the invention three and sound be the calcspar of the projection arrangement of synchronous broadcast document for audio-video.
Fig. 3 B represents that according to the synchronizable coding image of embodiments of the invention three and sound be the projection arrangement of synchronous broadcast document for audio-video and the stereogram of transparency.
Main element symbol description 10,30,40: projection arrangement
11: the recording unit
12: the first processing units
13: receiving element
14: the first processing units
15: audio-video coding unit
16: memory cell
17: output unit
18,48: projecting unit
19: operating unit
20: medium
21: electronic installation
22,31a, 41a: image
31: material object
33,43: image extraction unit
38: the outer projections device
41: transparency
41b: luminescence unit
S: user's sound
A1: first voice signal
A2: second sound signal
AV: synchronous broadcast document for audio-video
V1: first picture signal
V2: second picture signal
Embodiment
Embodiment one
Please be simultaneously with reference to Figure 1A～1B, Figure 1A represents that according to the synchronizable coding image of embodiments of the invention one and sound be the calcspar of projection arrangement, electronic installation and the medium of synchronous broadcast document for audio-video, and Figure 1B represents that according to the synchronizable coding image of embodiments of the invention one and sound be the projection arrangement of synchronous broadcast document for audio-video and the stereogram of electronic installation.In Figure 1A～1B, projection arrangement 10 comprises a receiving element 13, one first processing unit 12, a projecting unit 18, recording unit 11, one second processing unit 14 and an audio-video coding unit 15.Receiving element 13 is in order to receive and to export one first picture signal V1, and receiving element 12 is to be electrically connected with an electronic installation 21, to receive the first picture signal V1 that electronic installation 21 is exported.In addition, electronic installation 21 can be computer or portable electronic devices etc., and computer can be that desktop PC, mobile computer, laptop computer or palmtop computer, portable electronic devices can be mobile phone or personal digital assistant etc.In the present embodiment, electronic installation 21 is to be that example explains with the mobile computer.
The sound S of a user when explaining the pairing image of the second picture signal V2 recorded in recording unit 11, to export one first voice signal A1.Second processing unit 12 is electrically connected with recording unit 11, in order to receive first voice signal A1 and the processing, to export a second sound signal A2.For example, second processing unit 12 is to dwindle signal in DC compensation (DC offset) mode earlier, filters noise and background sound among the first voice signal A1 again, to highlight user's sound.Phonotape and videotape coding unit 15 is electrically connected with first processing unit 12 and second processing unit 14, in order to receive the second picture signal V2 and second sound signal A2 and to carry out synchronous coding according to time flow, to export a synchronous broadcast document for audio-video AV.
In the present embodiment, projection arrangement 10 also comprises a memory cell 16, and memory cell 16 is electrically connected with audio-video coding unit 15, in order to receive and storage synchronous broadcast document for audio-video AV.In addition, projection arrangement 10 also comprises an output unit 17, and output unit 17 is electrically connected with memory cell 16, in order to output synchronous broadcast document for audio-video AV to a medium 20.In addition, projection arrangement 10 also comprises an operating unit 19, operating unit 19 is arranged on the casing outer surface of projection arrangement 10, be electrically connected with recording unit 11 and audio-video coding unit 15, when the user pressed operating unit 19, projection arrangement 10 started the running of recording unit 11 and audio-video coding unit 15.When the user pressed operating unit 19 again, projection arrangement 10 finished the running of recording unit 11 and audio-video coding unit 15.By operating unit 19, the user can manually start and finish the recording and the audio-video encoding operation of projection arrangement 11.
Moreover projection arrangement 11 can start the running of recording unit 11 and audio-video coding unit 15 when the pairing image 22 of the projecting unit 18 projection second picture signal V2 is to wall.Projection arrangement can finish the running of recording unit 11 and audio-video coding unit 15 behind audio-video coding unit 18 output synchronous broadcast document for audio-video AV, to reach the purpose that projection arrangement 11 starts and finish recording and audio-video encoding operation automatically.In the present embodiment, the user more can be by the running of remote controller (not shown) control projection arrangement 11, to start and to finish recording and audio-video encoding operation.
When the user utilizes projection arrangement 10 and electronic installation 21 to carry out bulletin, the user can be on one side with the bulletin file in the electronic installation 21 to wall, on one side the sound recording that will be explained the bulletin file.At last, the user is projected to the image on the wall with projection arrangement 10 and sound that the bulletin file is explained carries out synchronous decoding, produces a synchronous broadcast document for audio-video in the mode of following time flow.This synchronous broadcast document for audio-video can offer participant under the platform, makes when the participant opens this synchronous broadcast document for audio-video in the future under the platform just like getting back to the on-the-spot originally telepresenc when listening to user's bulletin.
Have in the technical field under the present embodiment and know that usually the knowledgeable can also understand that the technology of present embodiment is not confined to this, for example, audio-video coding unit 15 comprises MPEG phonotape and videotape encoder, as MPEG 2/4 audio-video encoder.Wherein, memory cell 16 comprises a memory or a hard disk, receiving element 11 comprises a USB, and (output unit 17 comprises a USB output or an IEEE 1394 outputs for universal serial bus, USB) receiving terminal or an IEEE 1394 receiving terminals.In addition, medium 20 comprises one and coils with oneself or a storage card, storage card can be a stamp type (stamp size) storage card, as secure digital storage card (secure digital card, SD card), multimedia storage card (multimedia card, MMC card), flash memory cards (compact flash card, CF typeI/II), smart media card (smart media card, SM card), IBM
Microdrive storage card, Sony
Memory stick (memory stick), Sony
Memory stick-pro, and the xD storage card etc.In addition, operating unit 19 can be a key groups or a Trackpad.
It is the design of a synchronous broadcast document for audio-video that present embodiment carries out in the bulletin process image and sound synchronous coding the bulletin person, can allow participant's picture content with the aid of pictures on one side when in the future opening this part synchronous broadcast document for audio-video, and listen sound on one side corresponding to picture material.Thus, the participant can give the lively telepresenc of on-the-spot participant originally soon for change, and the purpose that reaches review, reviews and review.Thus, the Jamais Vu of not only avoiding the participant in the past when in the future looking back general bulletin documentation, to be produced, more can prevent the participant when looking back general bulletin documentation, produce in the future can't understand or can't before and after the puzzlement that connects of literary composition, promote the practicality of projection arrangement widely.
Embodiment two
Please be simultaneously with reference to Fig. 2 A～2B, Fig. 2 A represents according to the synchronizable coding image of embodiments of the invention two and sound to be the calcspar of projection arrangement, outer projections device and the medium of synchronous broadcast document for audio-video, and Fig. 2 B represents according to the synchronizable coding image of embodiments of the invention two and sound to be the stereogram of projection arrangement, material object and the outer projections device of synchronous broadcast document for audio-video.The projection arrangement 30 of present embodiment does not coexist with the projection arrangement 10 of embodiment one and is in an image extraction unit 33, and has omitted designs such as projecting unit 18 and receiving element 13.Continue to continue to use label as for other identical constitutive requirements, and repeat no more.In the present embodiment, projection arrangement 30 is to be that example explains with the projector.
At Fig. 2 A～2B, image extraction unit 33 is in order to extract the image of a material object 31, to export one first picture signal V1.First processing unit 14 is electrically connected with a receiving element and an outer projections device 38.First processing unit 14 receives first picture signal V1 and the processing, to export one second picture signal V2 to outer projections device 38, makes the pairing image 31a of the outer projections device 38 projection second picture signal V2 to wall.
Have in the technical field under the present embodiment and know that usually the knowledgeable can also understand that the technology of present embodiment is not confined to this, for example, projection arrangement 30 starts the running of recording unit 11 and audio-video coding unit 15 when the pairing image 31a of the outer projections device 38 projection second picture signal V2 is to wall.Projection arrangement 30 finishes the running of recording unit 11 and audio-video coding unit 15 behind audio-video coding unit 15 output synchronous broadcast document for audio-video AV.In addition, image extraction unit 33 comprise a complementary metal oxide semiconductors (CMOS) semiconductor (complementary metal-oxide semiconductor) or a charge coupled device (charge coupled device, CCD).
Embodiment three
Please be simultaneously with reference to Fig. 3 A～3B, Fig. 3 A represents that according to the synchronizable coding image of embodiments of the invention three and sound be the calcspar of the projection arrangement of synchronous broadcast document for audio-video, and Fig. 3 B represents that according to the synchronizable coding image of embodiments of the invention three and sound be the projection arrangement of synchronous broadcast document for audio-video and the stereogram of transparency.The projection arrangement 40 of present embodiment does not coexist with the projection arrangement 10 of embodiment one and is in a luminescence unit 41, a projecting unit 48 and an image extraction unit 43, and the design of having omitted receiving element 13.Continue to continue to use label as for other identical constitutive requirements, and repeat no more.In the present embodiment, projection arrangement 40 is to be that example explains with transparency projector.
In Fig. 3 A～3B, transparency 41 is placed on the projection platform of projection arrangement 40, and luminescence unit 41b will provide light to transparency 41, cross transparency 41 with transmission.The light that projecting unit 48 is crossed transparency 41 with transmission amplifies and is projected on the wall, to show an image 41a corresponding to the content of transparency 41 on the wall.Image extraction unit 43 is electrically connected with image extraction unit 43 to export one first picture signal V1, first processing unit 14 extracting image 41a, receives first picture signal V1 and the processing, to export one second picture signal V2 to image encoding unit 15.
Have in the technical field under the present embodiment and know that usually the knowledgeable can also understand that the technology of present embodiment is not confined to this, for example, image extraction unit 43 comprises a complementary metal oxide semiconductors (CMOS) semiconductor or a charge coupled device.In addition, luminescence unit 41b can be bulb, fluorescent tube or planar light source.In addition, projecting unit 48 can be the collocation design of optical lens and speculum.
Disclosed synchronizable coding image of the above embodiment of the present invention and sound are the projection arrangement of synchronous broadcast document for audio-video, it carries out in the bulletin process image and sound synchronous coding the bulletin person is the design of a synchronous broadcast document for audio-video, can allow participant's picture content with the aid of pictures on one side when in the future opening this part synchronous broadcast document for audio-video, and listen sound on one side corresponding to picture material.Thus, the participant can give the lively telepresenc of on-the-spot participant originally soon for change, and the purpose that reaches review, reviews and review.Thus, the Jamais Vu of not only avoiding the participant in the past when in the future looking back general bulletin documentation, to be produced, more can prevent the participant when looking back general bulletin documentation, produce in the future can't understand or can't before and after the puzzlement that connects of literary composition, promote the practicality of projection arrangement widely.
Though the present invention with preferred embodiment openly as above; right its is not that any those skilled in the art are under the situation that does not break away from the spirit and scope of the present invention in order to qualification the present invention; can change and modification, so protection scope of the present invention is as the criterion with the claim institute restricted portion that is proposed.
Claims (10)
1. synchronizable coding image and sound are the projection arrangement of synchronous broadcast document for audio-video, comprising:
One image extraction unit is extracted the image of a material object, to export one first picture signal;
One first processing unit, be electrically connected with this image extraction unit and an outer projections device, receive this first picture signal and processing,, this outer projections device is throwed on pairing image to a wall of this second picture signal to export one second picture signal at least to this outer projections device;
The sound of a user when explaining the pairing image of this second picture signal is recorded, to export one first voice signal in one recording unit;
One second processing unit is electrically connected with this recording unit, receives this first voice signal and processing, to export a second sound signal; And
One audio-video coding unit is electrically connected with this first processing unit and this second processing unit, receives this second picture signal and this second sound signal and carries out synchronous coding, to export a synchronous broadcast document for audio-video.
2. projection arrangement as claimed in claim 1 also comprises:
One memory cell is electrically connected with this phonotape and videotape coding unit, to receive and to store this synchronous broadcast document for audio-video.
3. projection arrangement as claimed in claim 2 also comprises:
One output unit is electrically connected with this memory cell, to export this synchronous broadcast document for audio-video to one medium.
4. projection arrangement as claimed in claim 1 also comprises:
One operating unit is electrically connected with this recording unit and this phonotape and videotape coding unit, and this projection arrangement starts the running of this recording unit and this phonotape and videotape coding unit when this operating unit is touched.
5. projection arrangement as claimed in claim 4 finishes the running of this recording unit and this phonotape and videotape coding unit when this operating unit is touched again.
6. synchronizable coding image and sound are the projection arrangement of synchronous broadcast document for audio-video, comprising:
One luminescence unit provides light to a transparency;
One projecting unit, the light that this transparency is crossed in transmission amplifies and is projected on the wall, to show an image corresponding to the content of this transparency on this wall;
One image extraction unit is extracted this image, to export one first picture signal;
One first processing unit is electrically connected with this image extraction unit, receives this first picture signal and processing, to export one second picture signal;
The sound of a user when explaining the pairing image of this second picture signal is recorded, to export one first voice signal in one recording unit;
One second processing unit is electrically connected with this recording unit, receives this first voice signal and processing, to export a second sound signal; And
One audio-video coding unit is electrically connected with this first processing unit and this second processing unit, receives this second picture signal and this second sound signal and carries out synchronous coding, to export a synchronous broadcast document for audio-video.
7. projection arrangement as claimed in claim 6 also comprises:
One memory cell is electrically connected with this phonotape and videotape coding unit, to receive and to store this synchronous broadcast document for audio-video.
8. projection arrangement as claimed in claim 7 also comprises:
One output unit is electrically connected with this memory cell, to export this synchronous broadcast document for audio-video to one medium.
9. projection arrangement as claimed in claim 6 also comprises:
One operating unit is electrically connected with this recording unit and this phonotape and videotape coding unit, and this projection arrangement starts the running of this recording unit and this phonotape and videotape coding unit when this operating unit is touched.
10. projection arrangement as claimed in claim 9 finishes the running of this recording unit and this phonotape and videotape coding unit when this operating unit is touched again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100848420A CN100377588C (en) | 2005-07-18 | 2005-07-18 | Projector apparatus capable of synchronous coding image and sound to synchronous broadcast document for audio-video |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100848420A CN100377588C (en) | 2005-07-18 | 2005-07-18 | Projector apparatus capable of synchronous coding image and sound to synchronous broadcast document for audio-video |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1741600A CN1741600A (en) | 2006-03-01 |
| CN100377588C true CN100377588C (en) | 2008-03-26 |
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ID=36093802
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100848420A Expired - Fee Related CN100377588C (en) | 2005-07-18 | 2005-07-18 | Projector apparatus capable of synchronous coding image and sound to synchronous broadcast document for audio-video |
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| Country | Link |
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| CN (1) | CN100377588C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109788267A (en) * | 2019-02-28 | 2019-05-21 | 四川长虹电器股份有限公司 | A kind of intelligent meeting projector apparatus and projection process method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062861U (en) * | 1989-08-21 | 1990-09-26 | 郭夏华 | Projection optical lantern |
| CN1315727A (en) * | 2000-03-28 | 2001-10-03 | 三星电子株式会社 | Storage recording medium of scrambling audio data and apparatus and method for recording and reproducing thereof |
| CN2641679Y (en) * | 2003-04-18 | 2004-09-15 | 光宝科技股份有限公司 | Recording/playing type projector |
| WO2004105389A1 (en) * | 2003-05-23 | 2004-12-02 | Il & Fs Education & Technology Services Ltd. | Portable projection device |
| CN1599444A (en) * | 2003-09-18 | 2005-03-23 | 精工爱普生株式会社 | Projector |
-
2005
- 2005-07-18 CN CNB2005100848420A patent/CN100377588C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062861U (en) * | 1989-08-21 | 1990-09-26 | 郭夏华 | Projection optical lantern |
| CN1315727A (en) * | 2000-03-28 | 2001-10-03 | 三星电子株式会社 | Storage recording medium of scrambling audio data and apparatus and method for recording and reproducing thereof |
| CN2641679Y (en) * | 2003-04-18 | 2004-09-15 | 光宝科技股份有限公司 | Recording/playing type projector |
| WO2004105389A1 (en) * | 2003-05-23 | 2004-12-02 | Il & Fs Education & Technology Services Ltd. | Portable projection device |
| CN1599444A (en) * | 2003-09-18 | 2005-03-23 | 精工爱普生株式会社 | Projector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1741600A (en) | 2006-03-01 |
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