Patent Application
20060020980
1. Field of the Invention
The present invention relates to an audio and video (AV) transmission device, and particularly to a wireless digital audio and video transmission device which wirelessly transmits AV signals from a multimedia video device thereof to a display thereof.
2. Prior Art
As development of technology, various multimedia video devices, such as a DVD player, a cable TV and a satellite TV, are widely applied in modern life. However, each conventional multimedia video device is a separated system through wire connection, which results that the multimedia video device can only be used in a limited space. For example, when a person leaves a room in which he watches TV, he cannot go on watching TV. Therefore, it is inconvenient to use the multimedia video device.
Furthermore, when a user does not take with a conventional multimedia video device, he cannot watch a program through the multimedia video device. In other words, when a user leaves a conventional multimedia video device, he cannot use it. Therefore, use of the conventional multimedia video device is limited by space and so is inconvenient.
Accordingly, an object of the present invention is to provide a wireless digital audio and video transmission device, which includes a wireless emitter connected to a multimedia video device employed as an AV signal generator and a wireless receiver connected to a display device for receiving signals from the wireless emitter, whereby it is ready to display the signals from the AV signal generator and so it is convenient to watch a program without limitation of space.
Another object of the present invention is to provide a wireless digital audio and video transmission device, which includes a wireless receiver connected to a display device for displaying the received signals and a remote controller for selection of programs and tuning of volume whereby it is convenient to use a multimedia video device of the wireless digital audio and video transmission device without limitation of space.
Another object of the present invention is to provide a wireless digital audio and video transmission device, which connects a multimedia video device employed as an AV signal generator to a plurality of display devices through wireless AV signal transmission, whereby it is convenient to keep watching program without limitation of space.
To achieve the above-mentioned objects, a wireless digital audio and video transmission device in accordance with the present invention includes a multimedia video device employed as an AV signal generator, and at least one display device. The multimedia video device includes a wireless transmission module, a video compression module, a lock code module and an antenna device. The wireless transmission module includes a wireless emitter and a wireless receiver. The antenna device is communicated to the wireless receiver and the wireless emitter. Each display device includes a wireless transmission module and a display. The wireless transmission module includes a wireless emitter and a wireless receiver.
Other objects, advantages and novel features of the present invention will be drawn from the following detailed embodiment of the present invention with attached drawings, in which:
Referring to
The display device 20 includes a wireless transmission module 21 and a display 22. The wireless transmission module 21 may transmit signals through Bluetooth or IrDA. The wireless transmission module 21 includes a wireless emitter 211 and a wireless receiver 212. The display 22 is an LCD.
In this embodiment, the multimedia video device 10 is a computer which can be used to visit internet and receive or send emails. The multimedia video device 10 includes four AV contacts AV1, AV2, AV3 and AV4 for transmitting signals of a DVD, a TV, a SAT and so on. The wireless transmission modules 11, 21 transmit digital signals through 802.11a for high quality of digital signal transmission.
As shown in
Furthermore, the display 22 may be controlled by a remote controller 30. That's, a password signal is input through the remote controller 30 and then emitted by the wireless emitter 211 of the display device 20. The wireless receiver 112 of the multimedia video device 10 receives the password signal and then transmits the password signal to the lock code module 13. When the password signal is verified, controlling signals are transmitted to the wireless receiver 212 and the display 22 of the display device 20 through the wireless emitter 111 and the second antenna 142. Thus, the remote controller 30 can be used for selection of programs and tuning of volume whereby it is convenient to use a multimedia video device of the wireless digital audio and video transmission device without limitation of space.
As mentioned above, the wireless digital audio and video transmission device of the present invention provides the wireless transmission device to connect to the AV signal generator, and transmits AV signals to the wireless receiver of the display device through 802.11a for displaying the AV signals. Furthermore, a user can select a program and tune volume through the remote controller. It is convenient to use without limitation of space due to wireless transmission.
It is understood that the invention may be embodied in other forms without departing from the spirit thereof. Thus, the present examples and embodiments are to be considered in all respects as illustrative and not restrictive, and the invention is not to be limited to the details given herein.
