Multimedia audiovisual wireless transceiver

Multimedia audio and video wireless transmission receiving device

The present invention relates to a multimedia audio and video wireless transmission receiving device, in particular to a hand-held multimedia player for positioning, and transmitting and transmitting audio and video signals by wireless transmission, and for receiving and playing by the playing unit, to obtain An innovative designer of multimedia audio and video wireless transmission and reception devices that is more clear and more illuminating the viewing effect of the screen, and more practical convenience when viewing video and audio materials.

In modern society, people are busy with their work, and they are pursuing a more comfortable and good quality of leisure life. With the rapid development of science and technology, there are various kinds of music and images available on the market. Electrical products such as MP3 (MPEG-Movie Picture Experts Group-1 Layer 3), MP4 [MPEG-4; Movie Picture Experts Group-4] player, CD (Compat Disk) player A VCD (Video Compact Disk) player, a DVD (Digital Versatile/Video Disk) player, etc., to create a more convenient society to meet people's needs in daily life.

This type of multimedia playback device has also been continuously researched and improved by the industry. With the increase of data storage capacity, it has gradually evolved and reduced its size. It can be conveniently used by people to listen to music and watch videos, making the portable multimedia player Portable Multimedia Player, PMP] has gradually become popular.

However, although the above-mentioned hand-held multimedia player can achieve the intended effect of facilitating the user to carry music and watch the movie with him, it is also found in the actual operation and implementation that the hand-held multimedia player is greatly reduced in size. Relative to the small screen, for the elderly or people with poor eyesight, it is more difficult to read the text or images on the small screen, and the small screen and its sound output need to be broadcast via the earphone connection, making it It is also impossible to share listening and watching with others, and there are inconveniences in use.

The multimedia audio-visual wireless transmission receiving device of the present invention mainly comprises a transmission device for inserting a portable multimedia player, and the corresponding transmission device is provided with a receiving device, and the receiving device is connectable to the playing unit. After the hand-held multimedia player is combined with the transmission device, the audio and video data in the hand-held multimedia player can be transmitted by the wireless transmitting unit by using the transmission device, and the wireless receiving unit of the receiving device receives the broadcast through the playing unit. Therefore, in order to obtain a clearer and more viewing effect of the viewing screen, and also for many people to watch and share at the same time, and increase the practical value of the portable multimedia player.

First of all, please refer to the first figure. This creation mainly consists of a transmission device (2) for the hand-held multimedia player (1), and a receiving device for the corresponding transmission device (2). 3) for connection with the playback unit (4); wherein: the transmission device (2), as shown in the second and third figures together, having a socket (21), and the insertion seat (21) A plug-in interface (22) is provided for the hand-held multimedia player (1) to be plugged and coupled, and a control unit (23) is disposed in the transmission device (2), and the control unit (23) is connected with a power supply circuit (24) for connecting the power supply unit (25), the power supply unit (25) can be an in-car cigarette lighter (as shown in the third figure), a battery, a commercial power (as shown in the fourth figure), etc., in the control The unit (23) is further connected with a signal modulation unit (26), the signal modulation unit (26) is also connected to the plug interface (22), and the signal modulation unit (26) is further connected with a wireless transmission unit (27). The wireless transmitting unit (27) is also connected to the control unit (23) and has an antenna (271) connected thereto, and the control unit (23) is also connected with a display unit (231) and a button unit (232). For all manipulations and Shows control state.

The receiving device (3), as shown in the fifth figure, is also provided with a control unit (31), and the control unit (31) is connected with a power supply circuit (32) for connecting the power supply unit (33) [such as a car Inside the cigarette lighter, battery, mains, etc., a wireless receiving unit (34) is also connected to the control unit (31), and the wireless receiving unit (34) is connected with an antenna (341) for receiving and transmitting the device (2) wirelessly. The transmitting unit (27) transmits a signal via the antenna (271), and the control unit (31) is connected with the wireless receiving unit (34) with a signal demodulating unit (35) for connecting with the signal demodulating unit (35). The playback unit (4) (such as: TV, TV for TV, etc.), and the control unit (31) is connected with a display unit (311) and a button unit (312) for performing various manipulations and display manipulation states. .

In this way, when the user inserts the hand-held multimedia player (1) into the transport device (2), the plug-in socket (21) is plugged and coupled with the plug-in interface (22), and the transmission device (2) The signal modulation unit (26) modulates the audio and video data in the hand-held multimedia player (1), and then transmits the antenna (271) via the wireless transmitting unit (27), and the receiving device (3) The wireless receiving unit (34) receives the video data signal transmitted by the wireless transmitting unit (27) with the antenna (271) by the antenna (341), that is, the signal demodulating unit (35) capable of passing the receiving device (3) Demodulation is changed, and then played by the connected playback unit (4) for public viewing.

As described above, the composition of the component and the implementation description can be seen that, compared with the existing structure, the present invention can wirelessly transmit the audio and video data in the hand-held multimedia player for playback and playback. The receiving device of the unit is connected and then played through the playing unit, so that it can obtain a clearer and larger viewing effect of the viewing screen, and can also be used for viewing and sharing by multiple people at the same time, and the portable multimedia playing is further enhanced. The practical value of the device.

In summary, the present embodiment can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has fully complied with the provisions of the Patent Law. And the request, the application for a new type of patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.

<p>(1). . . Hand-held multimedia player</p><p>(2). . . Transmission device</p><p>(twenty one). . . Plug seat</p><p>(twenty two). . . Plug interface</p><p>(twenty three). . . control unit</p><p>(231). . . Display unit</p><p>(232). . . Button unit</p><p>(twenty four). . . Power circuit</p><p>(25). . . Power supply department</p><p>(26). . . Signal modulation unit</p><p>(27). . . Wireless transmitter unit</p><p>(271). . . antenna</p><p>(3). . . Receiving device</p><p>(31). . . control unit</p><p>(311). . . Display unit</p><p>(312). . . Button unit</p><p>(32). . . Power circuit</p><p>(33). . . Power supply department</p><p>(34). . . Wireless receiving unit</p><p>(341). . . antenna</p><p>(35). . . Signal demodulation unit</p><p>(4). . . Play unit</p>

The first picture: the schematic diagram of the overall architecture of the creation. The second picture: the circuit diagram of the transmission device of the present creation. The third picture: the structure of the transmission device of the present creation. The fourth picture: the structure of the transmission device of the present invention is the fifth. Figure: Block diagram of the receiving device circuit of this creation