CN1533167A - Multifunctional color digital projector - Google Patents
Multifunctional color digital projector Download PDFInfo
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- CN1533167A CN1533167A CNA031139817A CN03113981A CN1533167A CN 1533167 A CN1533167 A CN 1533167A CN A031139817 A CNA031139817 A CN A031139817A CN 03113981 A CN03113981 A CN 03113981A CN 1533167 A CN1533167 A CN 1533167A
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Abstract
A multifunction color digital projecting camera includes an optical engine system and a drive circuit system. The drive circuit includes: a video signal input interface, a video system decode and D/M converter, a CPU control center process system and a LCD drive circuit. The said projecting camera can connect with multiple video signal sources, apply high brightness cold light source for lighting, having multifunction of keystone correction, frame freezing, amplified panning etc.
Description
The present invention relates to sound, light, electricity, machine technology field, particularly the multifunctional colour digital projector of employing sound, light, electricity, machine synthetic technology.
The development of shadow casting technique gets very fast with the progress of optics, electronic science and technology.As the pre-projecting type projector equipment, back projection type projector equipment, lcd projector's equipment etc.Lcd projector's equipment is made up of liquid crystal drive, amplifying lens, light source and LCD etc.This display unit cost is low, brightness is higher because this display device is to adopt liquid crystal display displays, comparatively speaking the size of display screen, distance, make things convenient for Cheng Du etc. all to have certain deficiency.The projector of prior art also has low, the poor definition of brightness, and projection requires the deficiency of aspects such as environmental condition height.
The objective of the invention is deficiency at above-mentioned technology, design a kind of can external various video signal source, high intensity cold light supply is adopted in illumination, have keystone, picture freeze amplifies roaming, picture-in-picture, multi-lingual menu, mouse remote control, the multiple function of bulb life calendar scheduling, and picture color is bright-coloured clear, the brightness height, easy and simple to handle, environmental condition is required low multifunctional colour digital projector.
Purpose of the present invention can be achieved through the following technical solutions:
The multifunctional colour digital projector comprises optical engine system and drive circuit input signal system.The input signal interface unit of drive circuit comprises COMPUTER input interface circuit, composite video terminal S-VIDEO input circuit and RCA signal input interface, respectively its signal being delivered to video formats decoding and A/D digital-to-analogue conversion handles, processed signal is directly delivered to CPU control centre treatment system and is put in order, delivers to the Projection Display image through the LCD drive circuit again through arrangement changed digital signal.CPU control centre treatment system is distinguished map interlinking as digital processing system, built-in digital audio treatment system, function control system and LCD drive circuit.
Multifunctional colour digital projector of the present invention compared with prior art can external multiple audio-video signal, adopts the high intensity cold light supply illuminator, have keystone, picture freeze amplifies roaming, picture-in-picture, multi-lingual menu, mouse remote control, the multiple function of bulb life calendar scheduling, and picture color is bright-coloured clear, the brightness height, easy and simple to handle, require low to environmental condition.
Fig. 1 is a multifunctional colour digital projector theory diagram of the present invention
Fig. 2 is a multifunctional colour digital projector theory diagram of the present invention
Fig. 3 is a multifunctional colour digital projector circuit diagram of the present invention
Below in conjunction with accompanying drawing the present invention is described in further detail:
The multifunctional colour digital projector comprises optical engine system 1 and drive circuit input signal system 2.COMPUTER signal input interface 201 in the signal input system 20, composite video terminal S-VIDEO signal input interface 202 and RCA signal input interface 203 are delivered to CPU control centre treatment system 40 by video formats decoding and A/D D/A converting circuit 10 with signal respectively and are put in order.Be organized digital signal and send into image/video digital processing system 30 and built-in digital audio treatment system 50 respectively, video-audio signal is carried out digital processing.Guaranteeing on the image output quality basis,, can accept the input of high-resolution signal image signal data compression arrangement, upset about image is stacked, carry out image level and vertical compression, picture-in-picture shows, trapezoidal calibration, the diagonal angle is inverted, level inversion etc.It is double-audio signal with Audio Signal Processing that built-in digital audio handles 50, multi-channel signal, and multi-lingual signal is handled the audio signal after amplifying, input CPU control centre treatment system 40.Composite video terminal S-VIDEO signal input circuit interface 202 in the signal input system 20 comprises four AW-37 interfaces, and wherein two are used for connecing DVD and the input of TV signal, and two are used for outputing signal to video formats decoding and A/D digital-to-analogue conversion 10 in addition.Detect filtration by signal microprocessor, microelectronic switch is switched and very lagre scale integrated circuit (VLSIC), selects input 201 of one road COMPUTER signal or the input 202 of S-VIDEO signal or RCA signal input 203 to import audio-video signal jointly.Video formats decoding and A/D digital-to-analogue conversion 10, support NTSC or PAL vision signal, can from four tunnel composite video signals, carry out selection able to programme, have clamper modulation and autosynergism controlled function, tone, noise, contrast, brightness and acutance are adjusted.Video formats decoding and A/D digital-to-analogue conversion 10 are carried out the A/D digital-to-analogue conversion with the signal of importing, and analog signal is transformed into 48 or 96 position digital signals, send into CPU control centre treatment system 40 again.CPU control centre treatment system 40 is cores of The whole control circuit, by changing the relevant input and output electronic data of depositing with the read-write of peripheral IC, digital signal is upgraded, changes, is adjusted.CPU control centre treatment system 40 also accepts to shake control button temperature control signals 602 and focal length heat radiation light source control 601 command signals of sending, according to button with shake the controlled mouse operation signal, carry out the instruction of control radiator fan, controls lens focal length, control bulb switch circuit, make the radiator fan late release, camera lens is flexible, and bulb is closed or opened in the focal length adjustment, adjust contrast, instruction operations such as control brightness are unimpeded.According to the brightness of system operation situation adjustment light, the wind speed of fan, sound and image definition etc.
Supply with the LCD drive circuit through the signal source that CPU control centre treatment system 40 is handled, switch amplifying signal by digital video again, be modulated into LCD acceptable working signal, for the LCD operate as normal through the LCD signaling conversion circuit.The opening and closing of drive circuit control cold light source bulb, the light that the cold light source bulb sends is handled color separation through optical engine system, behind optically focused, optical filtering, the polarization image projection on three LCD is come out, by composite prism three kinds of colors are combined into a secondary complete coloured image again, through light projection, zoom, displacement projects the bright-coloured distinct image of picture color by optical lens.
Multifunctional colour digital projector of the present invention is implemented circuit as shown in Figure 3, wherein signal input system 20 is corresponding to MODU1, MODU2, the MODU3 module, video formats decoding and A/D digital-to-analogue conversion 10 are corresponding to MODU4, MODU5, the MODU6 module, CPU control centre treatment system 40 is corresponding to the MODU7 module, built-in digital audio handles 50 corresponding to the MODU8 module, image/video digital processing 30 is corresponding to MODU9, the MODU10 module, shake the control 602 of control button temperature corresponding to the MODU11 module, focal length heat radiation light source control 601 is corresponding to the MODU12 module, and LCD drive circuit 70 is corresponding in MODU13, the MODU14 module.
Claims (4)
1. multifunctional colour digital projector, comprise optical engine system (1), drive circuit input signal system (2), input interface unit COMPUTER signal input interface circuit (201), composite video terminal S-VIDEO signal input circuit (202) and the RCA signal input interface (203) that it is characterized in that described signal input system (20) delivered to its signal the video formats decoding respectively and A/D digital-to-analogue conversion (10) is handled, and processed signal is directly delivered to CPU control centre treatment system (40) and put in order.Through CPU control centre treatment system (40) arrangement and changed digital signal, deliver to projection imaging through LCD drive circuit (70) again.CPU control centre treatment system (40) is distinguished map interlinking as digital video treatment system (30), built-in digital audio treatment system (50), function control system (60) and LCD drive circuit (70).
2. multifunctional colour digital projector according to claim 1 is characterized in that function control system (60) includes: shake control button temperature control (602) and focal length heat radiation light source control (601).
3, multifunctional colour digital projector according to claim 1 is characterized in that signal input system (20) includes: COMPUTER signal input (201), composite video terminal S-VIDEO signal input (202) and RCA signal input (203).
4, multifunctional colour digital projector according to claim 1, it is characterized in that signal input system (20), COMPUTER signal input circuit (201) wherein, composite video terminal S-VIDEO signal input circuit (202) and RCA signal input circuit (203) join with video formats decoding and A/D digital-to-analogue conversion (10) circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031139817A CN1533167A (en) | 2003-03-26 | 2003-03-26 | Multifunctional color digital projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031139817A CN1533167A (en) | 2003-03-26 | 2003-03-26 | Multifunctional color digital projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1533167A true CN1533167A (en) | 2004-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031139817A Pending CN1533167A (en) | 2003-03-26 | 2003-03-26 | Multifunctional color digital projector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394300C (en) * | 2005-12-15 | 2008-06-11 | 南京大学 | Trapezoidal correcting system for projector |
| CN103905757A (en) * | 2012-12-28 | 2014-07-02 | 成都傲龙电子有限公司 | Projector |
| CN104065900A (en) * | 2013-03-19 | 2014-09-24 | 宏碁股份有限公司 | Projection method and device |
-
2003
- 2003-03-26 CN CNA031139817A patent/CN1533167A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394300C (en) * | 2005-12-15 | 2008-06-11 | 南京大学 | Trapezoidal correcting system for projector |
| CN103905757A (en) * | 2012-12-28 | 2014-07-02 | 成都傲龙电子有限公司 | Projector |
| CN104065900A (en) * | 2013-03-19 | 2014-09-24 | 宏碁股份有限公司 | Projection method and device |
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