CN101325695B - Liquid crystal television with USB-OTG function - Google Patents
Liquid crystal television with USB-OTG function Download PDFInfo
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- CN101325695B CN101325695B CN 200710074963 CN200710074963A CN101325695B CN 101325695 B CN101325695 B CN 101325695B CN 200710074963 CN200710074963 CN 200710074963 CN 200710074963 A CN200710074963 A CN 200710074963A CN 101325695 B CN101325695 B CN 101325695B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 17
- 230000006870 function Effects 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention relates to a liquid crystal television including a USB-OTG function, comprising: a liquid crystal screen, a main CPU unit, a USB interface unit, a memorizer unit and a video transformation output unit that are respectively connected with the main CPU unit, wherein the USB interface unit reads multimedia information of a peripheral apparatus connected thereof in the main CPU unit which is used for analyzing and processing the multimedia information as well as controlling work of each circuit; the video transformation output unit codes and decodes the multimedia information processed by the main CPU unit and then output to the liquid crystal screen. The invention attaches a USB interface to the liquid crystal television, completing information communication between the liquid crystal television and a majority of digital apparatus so as to greatly expand digital function of the liquid crystal television and so that the liquid crystal television can display and play the information from other apparatus. Besides, the invention realizes plug-and-play and hot plugging, which is quite handy.
Description
Technical field
The present invention relates to LCD TV, more particularly, relate to a kind of LCD TV of the USB-OTG of having function and play the method for the multimedia messages of connected external equipment.
Background technology
Along with the development of technology, LCD TV has been given many new functions by people by various technological means, thereby makes LCD TV break away from the broadcast form of single video image, becomes a kind of comprehensive electrical equipment of gathering the diverse in function of many technology.The development of digital technology has promoted popularizing of MP3, mobile phone, digital camera, has produced a lot of MP3 and JPEG, MPEG4 etc. and has comprised audio frequency, video letter, the file of breath.Yet, we are roasting to the computer the inside these files under a lot of situations, the digital processing technology that utilizes computer to above-mentioned file read, decompress, decoding etc. can appreciate its abundant content by playing after handling, but such broadcast is subjected to the influence of mobile phone and computer monitor size and the restriction of sound quality, has had a strong impact on the aesthetic of people.Yet,, can satisfy people's aesthetic requirement fully because have the image quality of high definition and sound quality preferably for LCD TV.Especially at present free audio and video resources gets more and more on the computer network, the MPEG4 file that for example has its higher compression ratio and high-quality picture quality, this makes the people improve a step again to the functional requirement of LCD TV, wish to use LCD TV to handle above-mentioned audio/video file, for example, listen MP3 by TV, see the mobile phone and digital camera in the various movie files downloaded on the network of picture and appreciate etc.USB OTG (On-The-Go) is replenishing of USB2.0 version, can " strengthen " function of existing peripheral assembly and equipment, has increased host function, can realize point-to-point communication.USB OTG has been arranged, and print or transmit data of different types just no longer needs to use PC, just can be competent at above-mentioned all tasks than more cheap, the simpler equipment of PC.
Summary of the invention
The technical problem to be solved in the present invention is, at the above-mentioned defective of prior art, provides a kind of LCD TV of the USB-OTG of having function.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of LCD TV with USB-OTG function, comprise: liquid crystal display screen, main CPU unit, the usb interface unit that is connected with described main CPU unit respectively, memory cell, video conversion output unit, wherein, described usb interface unit reads in described main CPU unit with the multimedia messages of connected external equipment, described main CPU unit is used for the described multimedia messages of analyzing and processing, and the work of each circuit of control coordination, the multimedia messages after described video conversion output unit is handled described main CPU unit carries out coding and decoding and exports to described liquid crystal display screen.
In the LCD TV with USB-OTG function of the present invention, described usb interface unit comprises: be used to connect the USB interface of external equipment, the usb circuit that is connected with described USB interface, described usb circuit be connected to the DV coding decoder of described main CPU unit.
In the LCD TV with USB-OTG function of the present invention, described memory cell comprises: random asccess memory, read-only memory or flash memory, wherein, described random asccess memory provides interim memory space for described main CPU unit, and described read-only memory or flash memory provide control program for described main CPU unit.
In the LCD TV with USB-OTG function of the present invention, described video conversion output unit comprises: MPEG-2, LVDS coding decoder, audio frequency DAC, provide the random asccess memory of interim memory space for described MPEG-2, LVDS coding decoder.
In the LCD TV with USB-OTG function of the present invention, described main CPU unit detects described usb interface unit, judged whether that external equipment connects, and when external equipment connects, reads in the multimedia messages of external equipment by described usb interface unit.
In the LCD TV with USB-OTG function of the present invention, also comprise: the HDMI interface that is connected with described main CPU unit.The high-capacity flash memory that is connected with described main CPU unit.
The invention has the beneficial effects as follows, increase USB interface for the liquid crystal TV, finished the information interchange between LCD TV and the most of digital device.Thereby expanded the digital function of LCD TV greatly, made it can show and play on the information on the miscellaneous equipment.And realized plug and play and hot plug, very convenient.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structured flowchart of the LCD TV of the USB-OTG of having function of the present invention.
Embodiment
As shown in Figure 1, a kind of LCD TV of the present invention with USB-OTG function, comprise: liquid crystal display screen 5, main CPU unit 1, the usb interface unit 2 that is connected with described main CPU unit 1 respectively, memory cell 3, video conversion output unit 4, wherein, described usb interface unit 2 reads in described main CPU unit 1 with the multimedia messages of connected external equipment, described main CPU unit 1 is used for the described multimedia messages of analyzing and processing, and the work of each circuit of control coordination, the multimedia messages after described video conversion output unit 4 is handled described main CPU unit 1 carries out coding and decoding and exports to described liquid crystal display screen 5.
In the LCD TV with USB-OTG function of the present invention, described usb interface unit 2 comprises: be used to connect the USB interface of external equipment, the usb circuit that is connected with described USB interface, described usb circuit be connected to the DV coding decoder of described main CPU unit 1.Described memory cell 3 comprises: random asccess memory, read-only memory or flash memory, and wherein, described random asccess memory provides interim memory space for described main CPU unit 1, and described read-only memory or flash memory provide control program for described main CPU unit 1.Described video conversion output unit 4 comprises: MPEG-2, LVDS coding decoder, audio frequency DAC, provide the random asccess memory of interim memory space for described MPEG-2, LVDS coding decoder.
In the LCD TV with USB-OTG function of the present invention, also comprise: the HDMI interface that is connected with described main CPU unit 1.The high-capacity flash memory that is connected with described main CPU unit 1.
For LCD TV with USB-OTG function, described main CPU unit 1 detects described USB interface, judge whether described USB interface has the USB device of connection or card reader whether to be connected with digital card, when USB device that connects to some extent and/or digital card, judge whether to support this equipment and/or digital card, when this equipment of support and/or digital card, read in multimedia messages from described USB device and/or digital card.Or when described USB interface connects USB device and/or described card reader and is connected with digital card, described usb interface unit 2 sends notification signal to described main CPU unit 1, after described main CPU unit 1 receives described notification signal, judge whether to support this equipment and/or digital card, when this equipment of support and/or digital card, read in multimedia messages from described USB device and/or digital card.The described multimedia messages of described main CPU unit 1 analyzing and processing, judge whether to show the content of digital card in USB device and/or the described card reader,, then finish to play if do not show, otherwise, the corresponding listed files of content of digital card in demonstration and described USB device and/or the described card reader; This moment, the user can select to finish to play or select certain file to play, when the user has selected certain file to play, described main CPU unit 1 is according to corresponding control information, and the selected media file corresponding with described control information sends described video to and change output unit 4; Described video conversion output unit 4 is handled described media file, and is exported to described liquid crystal display screen and play by corresponding decoding program.
Claims (1)
1. LCD TV with USB-OTG function, comprise: liquid crystal display screen (5), it is characterized in that, also comprise: main CPU unit (1), the usb interface unit (2) that is connected with described main CPU unit (1) respectively, memory cell (3), video conversion output unit (4), wherein, described usb interface unit (2) reads in described main CPU unit (1) with the multimedia messages of connected external equipment, described main CPU unit (1) is used for the described multimedia messages of analyzing and processing, and the work of each circuit of control coordination, the multimedia messages after described video conversion output unit (4) is handled described main CPU unit (1) carries out coding and decoding and exports to described liquid crystal display screen (5);
Described usb interface unit (2) comprising: be used to connect the USB interface of external equipment, the usb circuit that is connected with described USB interface, described usb circuit be connected to the DV coding decoder of described main CPU unit (1);
Described memory cell (3) comprising: random asccess memory, read-only memory or flash memory, wherein, described random asccess memory is that described main CPU unit (1) provides interim memory space, and described read-only memory or flash memory are that described main CPU unit (1) provides control program;
Described video conversion output unit (4) comprising: MPEG-2, LVDS coding decoder, audio frequency DAC, provide the random asccess memory of interim memory space for described MPEG-2, LVDS coding decoder;
Described main CPU unit (1) detects described usb interface unit (2), has judged whether that external equipment connects, and when external equipment connects, reads in the multimedia messages of external equipment by described usb interface unit (2);
Also comprise: HDMI interface that is connected with described main CPU unit (1) and the high-capacity flash memory that is connected with described main CPU unit (1);
Wherein, described main CPU unit (1) detects described USB interface, judge whether described USB interface has the USB device of connection or card reader whether to be connected with digital card, when USB device that connects to some extent and/or digital card, judge whether to support this equipment and/or digital card, when this equipment of support and/or digital card, read in multimedia messages from described USB device and/or digital card, or when described USB interface connects USB device and/or described card reader and is connected with digital card, described usb interface unit (2) sends notification signal to described main CPU unit (1), after described main CPU unit (1) receives described notification signal, judge whether to support this equipment and/or digital card, when this equipment of support and/or digital card, read in multimedia messages from described USB device and/or digital card; The described multimedia messages of described main CPU unit (1) analyzing and processing, judge whether to show the content of digital card in USB device and/or the described card reader, if do not show, then finish to play, otherwise, the corresponding listed files of content of digital card in demonstration and described USB device and/or the described card reader; This moment, the user can select to finish to play or select certain file to play, when the user has selected certain file to play, described main CPU unit (1) is according to corresponding control information, and the selected media file corresponding with described control information sends described video conversion output unit (4) to; Described video conversion output unit (4) is handled described media file by corresponding decoding program, and exports to described liquid crystal display screen and play.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710074963 CN101325695B (en) | 2007-06-15 | 2007-06-15 | Liquid crystal television with USB-OTG function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710074963 CN101325695B (en) | 2007-06-15 | 2007-06-15 | Liquid crystal television with USB-OTG function |
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| Publication Number | Publication Date |
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| CN101325695A CN101325695A (en) | 2008-12-17 |
| CN101325695B true CN101325695B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200710074963 Active CN101325695B (en) | 2007-06-15 | 2007-06-15 | Liquid crystal television with USB-OTG function |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882411A (en) * | 2010-07-22 | 2010-11-10 | 福建捷联电子有限公司 | Liquid crystal display with digital multi-media player function |
| CN103108219A (en) * | 2013-03-01 | 2013-05-15 | 沈玉琴 | Whole multi-media audio and video intelligentization play control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674791Y (en) * | 2004-02-13 | 2005-01-26 | 青岛海信电器股份有限公司 | USB interface circuit for TV set |
| CN1595960A (en) * | 2004-06-21 | 2005-03-16 | 海信集团有限公司 | Digital television set with added USB interface |
| CN2798440Y (en) * | 2005-06-22 | 2006-07-19 | 四川长虹电器股份有限公司 | Apparatus for multimedia signal treating and multimedia TV thereof |
| CN2812443Y (en) * | 2005-06-07 | 2006-08-30 | 厦门一视通科技有限公司 | A high-definition digital media player |
| CN1972390A (en) * | 2005-11-22 | 2007-05-30 | 海尔集团公司 | TV set with high definition stream media playing function |
-
2007
- 2007-06-15 CN CN 200710074963 patent/CN101325695B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674791Y (en) * | 2004-02-13 | 2005-01-26 | 青岛海信电器股份有限公司 | USB interface circuit for TV set |
| CN1595960A (en) * | 2004-06-21 | 2005-03-16 | 海信集团有限公司 | Digital television set with added USB interface |
| CN2812443Y (en) * | 2005-06-07 | 2006-08-30 | 厦门一视通科技有限公司 | A high-definition digital media player |
| CN2798440Y (en) * | 2005-06-22 | 2006-07-19 | 四川长虹电器股份有限公司 | Apparatus for multimedia signal treating and multimedia TV thereof |
| CN1972390A (en) * | 2005-11-22 | 2007-05-30 | 海尔集团公司 | TV set with high definition stream media playing function |
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| Publication number | Publication date |
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| CN101325695A (en) | 2008-12-17 |
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