CN101291431A - Portable multimedia play device - Google Patents
Portable multimedia play device Download PDFInfo
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- CN101291431A CN101291431A CN 200710098170 CN200710098170A CN101291431A CN 101291431 A CN101291431 A CN 101291431A CN 200710098170 CN200710098170 CN 200710098170 CN 200710098170 A CN200710098170 A CN 200710098170A CN 101291431 A CN101291431 A CN 101291431A
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Abstract
The invention discloses a portable multimedia playing device, comprising a decoder, an encoder and a wireless transmitter module. The decoder is used for converting video-audio signals into video streams and audio streams. The encoder is used for encoding the video streams and the audio streams into video-audio series flow signals. The wireless transmitter module is used for transmitting the video-audio series flow signals to a display device having a wireless signal receiver. The invention utilizes a wireless transmission mode to transmit the video-audio signals played by the portable multimedia playing device to the display device having the specific wireless signal receiver. Therefore, users do not need to be limited by signal wires and can transmit the video-audio signals to players at high freedom degree, which overcomes the problem that the common portable multimedia playing device is inconvenient because of too small built-in screen and the restriction from the length of signal wires when the common portable multimedia playing device is connected to a television.
Description
Technical field
The present invention relates to a kind of AV device, relate in particular to a kind of portable multimedia play device
Background technology
Portable multimedia play device (Portable Media Player, PMP) provide the terminal equipment that the user enjoys image and sound program at any time, for example the video and audio fragment of computer, simulated television and Digital Television frequency signal etc. all can be play via portable multimedia play device.General portable multimedia play device all only disposes small-sized built-in screen, avoids causing the inconvenience of carrying because of excessive volume.But too small screen has limited the user's number that can share simultaneously when portable multimedia play device is play image and sound program.
Therefore, how to increase the number that together to view and admire when portable multimedia play device is play, and then improve the function of portable multimedia play device, the hope of being expected for manufacturer and user now.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of portable multimedia play device, during in order to raising portable multimedia play device play content, and the number of viewing and admiring video content simultaneously.
According to above-mentioned purpose of the present invention, a kind of portable multimedia play device is proposed, have decoder, encoder and wireless transmitter module.Decoder is in order to be converted to video-audio signal video flowing and audio stream.Encoder is in order to be encoded into audio-visual crossfire signal with video flowing and audio stream.Wireless transmitter module then is used for transmitting audio-visual crossfire signal on the display unit with wireless signal receiver.
Portable multimedia play device inside is equiped with wireless transmitter module, audio-visual crossfire signal can be sent on the display unit with wireless signal receiver.Portable multimedia play device can be play play content in the scope that wireless signal sends and receives by display unit, allow the multidigit user together share video content simultaneously.
And, according to above-mentioned purpose of the present invention, a kind of portable multimedia play device is proposed, be applicable to transmitting multimedia crossfire signal to external tv display unit, comprise: a decoder, in order to a digital television signal is converted to a video flowing and an audio stream; One encoder is in order to be encoded into a video-audio signal with above-mentioned video flowing and above-mentioned audio stream; And a wireless transmitter module, in order to transmit above-mentioned audio-visual crossfire signal to above-mentioned external tv display unit.
The video-audio signal that play inside can't be passed to the playback equipment of large-screen compared to general common portable multimedia play device, or only can use holding wire to be connected in TV, embodiments of the invention utilize the mode of radio transmission, and the video-audio signal that portable multimedia play device is play is passed on the display unit with special wireless receiver.Therefore the user need not be subjected to the yoke of holding wire, can there be the bigger degree of freedom that video-audio signal is passed to playback equipment, it is too small to have overcome the built-in screen of general portable multimedia play device itself, or is connected to and but is subject to holding wire length on the TV, produces inconvenient situation.And employed radio transmission standard can be wireless communication protocols such as 802.11a, 802.11b, 802.11g or 802.11n, and signal transmitting bandwidth that the kind of communication protocol is determined when selecting then according to actual design and signal transmit distance and decide.
In addition, when portable multimedia play device itself can receive and play TV signal, more can show, so as to the antenna setting of reduction display device and the cost of associated translation chip by receiving for display unit in the mode of wireless transmission play content with wireless signal receiver.Further, portable multimedia play device and wireless signal receiver communication protocol between the two also can have particular design, the video content that portable multimedia play device is play allows wireless signal receiver receive in the mode of broadcasting, reach single portable multimedia play device and get final product corresponding a plurality of display unit, make a plurality of display unit play identical content simultaneously, the range of application of expansion portable multimedia play device.
Description of drawings
Fig. 1 is the portable multimedia play device total system schematic diagram of one embodiment of the invention;
Fig. 2 is the portable multimedia play device total system schematic diagram of another embodiment of the present invention;
Fig. 3 is the effect schematic diagram of embodiment of the invention portable multimedia play device;
Fig. 4 is another form effect schematic diagram of embodiment of the invention portable multimedia play device.
Wherein, Reference numeral:
110: Portable playing device 114: decoder
116: encoder 118: loudspeaker
120: screen 122: wireless transmitter module
124: control connects 126: the signal of video signal input
128: voice signal input 210: display unit
212: wireless signal receiver 214: wireless receiving module
216: separate multi-function device 310: audio-visual terminal
Embodiment
Please refer to Fig. 1, it is the Portable playing device 110 total system schematic diagrames of the embodiment of the invention.Portable playing device 110 includes decoder 114, encoder 116 and wireless transmitter module 122.Decoder 114 is mainly used to the video-audio signal that Portable playing device 110 will be play is converted to video flowing and audio stream, for example video-audio signal is MPEG 2 video-audio signals, behind decoder 114, MPEG 2 video-audio signals can be exchanged into MPEG 2 video flowings and MPEG 2 audio streams, certainly the present invention is not limited to the form of video-audio signal at this, for example other industrywide standard all is the field that the present invention uses as MPEG 4 video-audio signals such as grade.116 of encoders are encoded into audio-visual crossfire signal with video flowing and audio stream.Audio-visual crossfire signal is received by wireless transmitter module 122, and is sent on the display unit 210 with wireless signal receiver 212.Therefore Portable playing device 110 can pass the video-audio signal that desire is play by the mode of wireless transmitter module 122 with wireless signal.
In addition, portable multimedia play device 110 also includes processor 112, built-in screen 120 and loudspeaker 118.Processor 112 is the main processing unit of portable multimedia play device 110, and couples mutually with decoder 114, with the action that is used for assisting decoder 114 to decipher.Built-in screen 120 and 118 on loudspeaker are used for displaying video stream and audio stream signal respectively, allow portable multimedia play device 110 bodies also can playing audio/video signal.
After the transmission content of portable multimedia play device 110 is gone out with wireless signal transfer, the display unit 210 with wireless signal receiver 212 will receive this wireless signal and also be shown.Wireless signal receiver 212 inside are provided with wireless receiving module 214 and separate multi-function device 216.Wireless receiving module 214 is used for receiving the audio-visual crossfire signal that has been converted to wireless signal transfer.Separating 216 of multi-function devices is displaying video stream and audio stream plays with audio-visual crossfire conversion of signals, plays for the display device 210 that couples with wireless signal receiver 212.
And the video-audio signal in the portable multimedia play device 110 can be in the portable multimedia play device 100 institute digital audio-video file, digital television signal or the anolog TV signals of storage in advance.
In another embodiment of the present invention, portable multimedia play device 110, be applicable to transmitting multimedia crossfire news stream signal to external tv display unit, for example: wireless signal receiver 212 and display unit 210, portable multimedia play device 110 includes decoder 114, wherein decoder 114 is in order to be converted to digital television signal video flowing and audio stream, encoder 116, in order to video flowing and audio stream are encoded into a video-audio signal, and wireless transmitter module 112, in order to transmit audio-visual crossfire signal to the external tv display unit.
Then please refer to Fig. 2, Fig. 2 is portable multimedia play device 110 system schematic of another embodiment of the present invention.Portable multimedia play device 110 also comprises signal of video signal input 126 and couples with processor 112 respectively with voice signal input 128.Therefore decoded video-audio signal also comprises the signal that signal of video signal input 126 and voice signal input 128 are imported except mentioned kind.In addition, portable multimedia play device 110 also can have control interface 124, transmission controls signal to processor 112, and the video-audio signal source that selected decoder 114 will be deciphered is to be sent to display unit with different audio-visual crossfire signals by wireless transmitter module 122.
Please refer to Fig. 3 and Fig. 4.Fig. 3 is the effect schematic diagram of portable multimedia play device 110 in the embodiment of the invention.Fig. 4 is another form effect schematic diagram of portable multimedia play device 110 in the embodiment of the invention.Portable multimedia play device 110 can send the mode of audio-visual crossfire signal with wireless signal, and is had display unit 210 demonstration that receives of wireless signal receiver 212.Wherein, wireless signal receiver 212 can be connected with display unit 210 by audio-visual terminal 310, as shown in Figure 3, perhaps directly is integrated in the display unit 210, as shown in Figure 4.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; being familiar with those of ordinary skill in the art ought can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. a portable multimedia play device is characterized in that, comprises at least:
One decoder is in order to be converted to a video-audio signal one video flowing and an audio stream;
One encoder is in order to be encoded into an audio-visual crossfire signal with above-mentioned video flowing and above-mentioned audio stream; And
One wireless transmitter module is in order to transmit above-mentioned audio-visual crossfire signal to the display unit with a wireless signal receiver.
2. portable multimedia play device according to claim 1, it is characterized in that, above-mentioned wireless signal receiver, have a wireless receiving module and and separate multi-function device, above-mentioned wireless receiving module is in order to receiving above-mentioned audio-visual crossfire signal, and the above-mentioned multi-function device of separating is in order to being that a displaying video stream and an audio stream plays show for above-mentioned display unit with above-mentioned audio-visual crossfire conversion of signals.
3. portable multimedia play device according to claim 1 is characterized in that, above-mentioned video-audio signal is institute's digital audio-video file of storage in advance in the above-mentioned portable multimedia play device.
4. portable multimedia play device according to claim 1 is characterized in that, above-mentioned video-audio signal is a digital television signal.
5. portable multimedia play device according to claim 1 is characterized in that, above-mentioned video-audio signal is anolog TV signals.
6. portable multimedia play device according to claim 1 is characterized in that, also comprises a signal of video signal input and a voice signal input.
7. portable multimedia play device according to claim 6 is characterized in that, above-mentioned video-audio signal is the signal that above-mentioned signal of video signal input and tut signal input part are imported.
8. portable multimedia play device according to claim 1 is characterized in that, above-mentioned wireless signal receiver is for being integrated in the above-mentioned display device.
9. portable multimedia play device according to claim 1 is characterized in that, above-mentioned wireless signal receiver is to be connected with above-mentioned display unit by an audio-visual terminal.
10. a portable multimedia play device is applicable to transmitting multimedia crossfire signal to external tv display unit, it is characterized in that, comprises:
One decoder is in order to be converted to a digital television signal one video flowing and an audio stream;
One encoder is in order to be encoded into a video-audio signal with above-mentioned video flowing and above-mentioned audio stream; And
One wireless transmitter module is in order to transmit above-mentioned audio-visual crossfire signal to above-mentioned external tv display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710098170 CN101291431A (en) | 2007-04-20 | 2007-04-20 | Portable multimedia play device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710098170 CN101291431A (en) | 2007-04-20 | 2007-04-20 | Portable multimedia play device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101291431A true CN101291431A (en) | 2008-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710098170 Pending CN101291431A (en) | 2007-04-20 | 2007-04-20 | Portable multimedia play device |
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| Country | Link |
|---|---|
| CN (1) | CN101291431A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012149684A1 (en) * | 2011-05-05 | 2012-11-08 | Panovel Technology Corporation | Low power and low latency push mode wireless hd video streaming architecture for portable devices |
-
2007
- 2007-04-20 CN CN 200710098170 patent/CN101291431A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012149684A1 (en) * | 2011-05-05 | 2012-11-08 | Panovel Technology Corporation | Low power and low latency push mode wireless hd video streaming architecture for portable devices |
| CN103650516A (en) * | 2011-05-05 | 2014-03-19 | 恒原微电子(上海)有限公司 | Low power and low latency push mode wireless HD video streaming architecture for portable devices |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081022 |