CN101383955A - Wireless digital projection device and method - Google Patents
Wireless digital projection device and method Download PDFInfo
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- CN101383955A CN101383955A CNA200710201617XA CN200710201617A CN101383955A CN 101383955 A CN101383955 A CN 101383955A CN A200710201617X A CNA200710201617X A CN A200710201617XA CN 200710201617 A CN200710201617 A CN 200710201617A CN 101383955 A CN101383955 A CN 101383955A
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Abstract
The invention provides a wireless projecting apparatus which comprises a wireless receiver, a processing module and a projecting module, wherein the wireless receiver is used for receiving wireless digital information and extracting image information in the received wireless digital information; the processing module is used for directly capturing the image information and performing format conversion for the image information which is not supported by the wireless projecting apparatus; and the projecting module is used for projecting the image information after being processed. The wireless projecting apparatus does not need to convert between digital signals and analog signals so as to reduce the probability of noise and improve the imaging quality. In addition, the invention also provides a wireless projecting method for the wireless projecting apparatus.
Description
Technical field
The present invention relates to a kind of wireless digital projection device and method.
Background technology
The display that early stage PC (Personal Computer) machine uses is CRT (Cathode Ray Tube cathode ray tube) display.Because the signal of the main frame inter-process of PC is a digital signal, and CRT monitor can only the display simulation signal image, so at host output end a numeral/analog signal converter is set, the digital signal that main frame is exported converts analog signal to for the CRT monitor demonstration.Early stage projector adopts CRT to carry out the projection video picture, so after projector receives the analog signal that main frame transmits, need not to carry out conversion of signals and can carry out projection.
Development along with projector, projector begins to adopt LCD (Liquid Crystal Display LCDs) or DMD (Digital Micromirror Device digital micromirror elements) to replace CRT and carries out projection, processing signals in the projector also becomes digital signal by analog signal, and the projector of this moment is called digital projector.But because the signal of most consumers' PC main frame output still is an analog signal, production firm just is provided with an analog/digital signal conversion device at the signal incoming end of digital projector, makes signal compatibility between digital projector and the PC.
Along with the development of radio digital communication, the radio digital communication technology begins to be applied to projection field.Production firm develops a kind of radio receiver and cooperates existing digital projector to use.This radio receiver comprises a wireless transceiver and a numeral/analog signal converter.Described wireless transceiver is used to receive the wireless digital signal that PC sends, and extracts digital image information in described wireless digital signal.Described digital/analog signal transducer is used for converting described digital image information to analog image information.Described analog image information via interface sends described digital projector to.The analog/digital signal conversion device that passes through of described digital projector changes into described analog image information after the digital image information, carries out Projection Display again.
Above-mentioned wireless digital projection device is wanted to convert digital information to analog signal earlier in a projection process, again analog signal conversion is become digital information, just gives DSP then and handles.Owing to will carry out the secondary singal conversion, the noise in the image is increased, cause image quality to descend.
Summary of the invention
In view of this, be necessary to provide a kind of wireless digital projection device and method of effective raising image quality.
A kind of wireless display device, it comprises: wireless receiver is used to receive wireless digital content, and extracts image information in the described wireless digital content that receives; Processing module is used for directly obtaining described image information, and the unsupported image information of described wireless display device is carried out format conversion; Projection module is used for the image information after the described processing is carried out projection.
A kind of wireless display method of wireless display device, it comprises: receive wireless digital content, and extract image information in described wireless digital content; Judge whether described wireless display device supports the form of described image information; If do not support that then described image information is carried out format conversion, the image information after will changing again carries out Projection Display; If support, then directly described image information carried out Projection Display.
Compared with prior art, directly has wireless receiver in the described wireless display device, this wireless receiver receives after the wireless digital content, and extracts image information from described wireless digital content, directly gives processing module then and carries out subsequent treatment.Thereby need not to carry out the conversion between digital signal and the analog signal, reduce to produce probability of noise, improved image quality.
Description of drawings
Fig. 1 is a kind of wireless display installation drawing that the embodiment of the invention provides.
Fig. 2 is the projecting method flow chart of the wireless display device among Fig. 1.
Embodiment
As shown in Figure 1, be the functional block diagram of the wireless display device 100 that provides of the embodiment of the invention.Described wireless display device 100 comprises a wireless receiver 20, a processing module 30 and a projection module 40.
Described wireless receiver 20 is used to receive wireless digital content, and extracts image information in the described wireless digital content that receives.Described wireless receiver 20 can be accepted a digital information that transmits from external electronic device.Described digital information can be transmitted by the infrared data transmission technology, also can transmit by Bluetooth technology, can also pass through wireless network transmissions.
Be appreciated that in existing Radio Transmission Technology all can carry out package and handle, and wireless receiver 20 has the function of unpacking described in the described wireless display device 100 in the present embodiment to the data of transmission.In the present embodiment, transmit data such as adopting Bluetooth technology, after described wireless receiver 20 receives described wireless digital content, just according to the agreement of Bluetooth technology described wireless digital content is unpacked, extract the image information in the packet, described image information is the image of a JPG form.
Be appreciated that described external electronic device can be computer, Digital Video, digital camera or a cell-phone PDA (Personal Digital Assistant personal digital assistant) with wireless data transmission device.
Described processing module 30 is used for directly obtaining described image information, and described wireless display device 100 unsupported image informations are carried out format conversion.Described processing module 30 is a DSP (a Digital Signal Processing digital signal processor), it obtains the image information that described wireless receiver 20 extracts, and judge whether described wireless display device 100 supports the form of this image information, whether promptly described wireless display device 100 can carry out projection with this image information.When described wireless display device 100 can't this image information of projection, 30 pairs of described image informations of described processing module carried out format conversion, make described wireless display device 100 described image information can be carried out projection.
In the present embodiment, described processing module 30 is obtained the described image that described wireless receiver 20 is accepted, and as an example, described wireless display device 100 is supported the image of BMP form, and does not support the image of JPG form.But,, convert thereof into the image of BMP form so 30 pairs of described images of described processing module carry out format conversion because described image is the JPG form just.
Be appreciated that between described wireless interface receiver 10 and described processing module 30 one first buffering area can be set.Described first buffering area is used for the image information that the described wireless interface receiver 10 of buffer memory extracts.
Being appreciated that the present invention is not limited to becomes some set forms with image transitions, as long as its function and the present invention are same or similar, all should be covered by in the protection range of the present invention.
Be appreciated that described processing module 30 can also adjust saturation, contrast, brightness and the acutance of described image information.
Be appreciated that between described processing module 30 and described projection module 40 one second buffering area can be set, be used for the image information after the described processing module 30 of buffer memory is handled.
Be appreciated that, wireless display device 100 of the present invention also can be provided with known VGA (Video GraphicsArray shows the drawing array) interface and be connected with external electronic device, receive the image information of analog signal, and analog/digital signal conversion device of corresponding setting converts the image information of described analog signal the image information of digital signal to, gives described processing module with the image information of described digital signal again and handles.
See also Fig. 2, be the projecting method flow chart of described wireless digital projection device 100, it may further comprise the steps:
Step S11: receive wireless digital content, and in described wireless digital content, extract image information.Described wireless receiver 20 receives a digital information that transmits from external electronic device, and described digital information is unpacked, and extracts image information.Described digital information can be transmitted by the infrared data transmission technology, also can transmit by Bluetooth technology, can also pass through wireless network transmissions.
Step S15: judge whether described wireless display device supports the form of described image information.Obtain the image information that described wireless interface receiver 10 extracts for described processing module 30 in the present embodiment, and judge whether described wireless display device 100 supports this image information.
Be appreciated that in tabulation of supporting form of described wireless display device 100 stored, can judge whether described wireless display device 100 supports this image information by in described tabulation, seeking the form whether described image information is arranged.
Step S21: if do not support, then described image information is carried out format conversion, again this image information is carried out Projection Display.In the present embodiment, described processing module 30 converts described image information to file format that described wireless display device 100 is supported, and described then projection module 40 carries out Projection Display with the image information after the format conversion.
Be appreciated that in described step S15 and step S21, can add the step that the parameters such as saturation, acutance, contrast and brightness to described image information are mediated.
Step S23:, then directly described image information is carried out Projection Display if support.In the present embodiment, described projection module 40 obtains the image information after described processing module 30 processing, and directly this image information is carried out Projection Display.
Compared with prior art, directly has wireless receiver in the described wireless display device, this wireless receiver receives after the wireless digital content, and extracts image information from described wireless digital content, directly gives processing module then and carries out subsequent treatment.Thereby need not to carry out the conversion between digital signal and the analog signal, reduce to produce probability of noise, improved image quality.
In addition, those skilled in the art also can do other variation in spirit of the present invention, as long as it does not depart from technique effect of the present invention, all should be included within the present invention's scope required for protection.
Claims (8)
- [claim 1] a kind of wireless display device is characterized in that, described wireless display device comprises:Wireless receiver is used to receive wireless digital content, and extracts image information in the described wireless digital content that receives;Processing module is used for directly obtaining described image information, and the unsupported image information of described wireless display device is carried out format conversion;Projection module is used for the image information after the described processing is carried out projection.
- [claim 2] be the wireless display device according to claim 1, it is characterized in that: described wireless display device also comprises one first buffering area, this first buffering area is arranged between described wireless receiver and the described processing module, is used for the image information that the described wireless receiver of buffer memory extracts.
- [claim 3] be the wireless display device according to claim 1, it is characterized in that: described wireless display device comprises one second buffering area, this second buffering area is arranged between described processing module and the described projection module, is used for the image information after the described processing module of buffer memory is handled.
- [claim 4] be the wireless display device according to claim 1, it is characterized in that: described wireless receiver receives wireless digital content by bluetooth, infrared ray or wireless network.
- [claim 5] be the wireless display device according to claim 1, it is characterized in that: described processing module is a digital signal processor.
- [claim 6] be the wireless display device according to claim 1, it is characterized in that: described processing module is also regulated saturation, acutance, contrast and the brightness of described image information.
- The wireless display method of [claim 7] a kind of wireless display device, it comprises:Receive wireless digital content, and in described wireless digital content, extract image information;Judge whether described wireless display device supports the form of described image information;If do not support that then described image information is carried out format conversion, the image information after will changing again carries out Projection Display;If support, then directly described image information carried out Projection Display.
- [claim 8] is characterized in that: before step is carried out Projection Display with described image information, also comprise the step that saturation, acutance, contrast and brightness to described image information are regulated as wireless display method as described in the claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710201617XA CN101383955A (en) | 2007-09-07 | 2007-09-07 | Wireless digital projection device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710201617XA CN101383955A (en) | 2007-09-07 | 2007-09-07 | Wireless digital projection device and method |
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| CN101383955A true CN101383955A (en) | 2009-03-11 |
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| CNA200710201617XA Pending CN101383955A (en) | 2007-09-07 | 2007-09-07 | Wireless digital projection device and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012619A (en) * | 2010-09-30 | 2011-04-13 | 上海理工大学 | Projector with wireless data communication function |
| WO2012083568A1 (en) * | 2010-12-23 | 2012-06-28 | 河南中光学集团有限公司 | Micro-projector |
| CN104053068A (en) * | 2014-06-13 | 2014-09-17 | 乐视致新电子科技（天津）有限公司 | Information promoting method, infrared projecting device and smart television |
| CN104618671A (en) * | 2015-01-26 | 2015-05-13 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN104808419A (en) * | 2015-03-17 | 2015-07-29 | 上海青葱网络科技有限公司 | Automobile projection communication method |
-
2007
- 2007-09-07 CN CNA200710201617XA patent/CN101383955A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012619A (en) * | 2010-09-30 | 2011-04-13 | 上海理工大学 | Projector with wireless data communication function |
| WO2012083568A1 (en) * | 2010-12-23 | 2012-06-28 | 河南中光学集团有限公司 | Micro-projector |
| CN104053068A (en) * | 2014-06-13 | 2014-09-17 | 乐视致新电子科技（天津）有限公司 | Information promoting method, infrared projecting device and smart television |
| CN104618671A (en) * | 2015-01-26 | 2015-05-13 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN104808419A (en) * | 2015-03-17 | 2015-07-29 | 上海青葱网络科技有限公司 | Automobile projection communication method |
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Open date: 20090311 |