Patent Application
20080036858
The present invention relates in general to a video device, and more particularly, to an on-demand vehicle video entertainment device providing multiple video programs and allowing the passengers to view the outside sceneries of the vehicle.
To entertain the passengers through a long journey, many vehicles such as buses or large size coaches are equipped with device to play a video program or a film. However, most of the video devices can only provide a single program only. Although the on-demand entertaining systems have been very popular in commercial aircrafts, the cost of such systems is still too high to apply in vehicles such as buses or coaches. In addition, the seat location in the vehicle often limits the passengers to enjoy the sceneries outside of the vehicle. There is also currently lack of the facilitate allowing the passengers in all seat locations to enjoy the sceneries from different angles and view points.
Accordingly, there is a substantial need to develop a low-cost on-demand entertainment device that does not only provide multiple video programs, but is also operative to reproduce the sceneries outside the vehicle from various angles and directions, such that the passengers can be better entertained and enjoy more of the journey.
A low-cost on-demand vehicle entertaining device is provided to provide multiple video programs for the passengers to select.
The on-demand vehicle entertaining device does not only provide multiple video programs for the passengers to select, but is also operative to reproduce and display the sceneries outside the vehicle from various angles and directions.
The on-demand video entertaining device of the invention utilizing the characteristic of the modulator to receive several signals simultaneously, includes a video program unit, which has a plurality of video programs each providing a video signal, at least one modulation unit to modulate the video signal provided by the video program unit and output the modulated signal through a coaxial cable, a video device unit installed in the vehicle having a plurality of demodulators, processors, a screen, a controller and a pair speaker. The demodulators receive the modulated signal transmitted by the coaxial cable and demodulate the modulated signal into a TV image signal and a dual audio channel signal, which are then transmitted to the screen and the speakers. The controller transmits the operation commands for channel selection and volume adjustment to the processor. The processor controls the demodulators, the screen and screen to perform the corresponding action of the commands. Thereby, multiple video entertainment programs can be provided to the passengers on board. The passengers can also browse the outside sceneries from different angles and directions.
These and other features and advantages of the various embodiments disclosed herein will be better understood with respect to the following description and drawings, in which like numbers refer to like parts throughout, and in which:
As shown in
Currently, the basic demodulator 21 is operative to receive twelve video signals simultaneously. That is, the on-demand video entertaining device may be equipped with at least twelve video programs allowing the passenger to select. It will be appreciated that demodulators that support more or less channels and the number of the demodulators can be modified according to specific need without exceeding the scope of the current invention.
The vehicle on-demand video entertaining device as discussed above does not only allow individual passenger to select various types of programs, but also allow the passenger to enjoy the sceneries along the journeys without being restricted by the specific seat location. Moreover, the vehicle on-demand video entertaining device can be fabricated with a relative low cost, such that each passenger can enjoy an individual on-demand video entertaining device like those provided in the commercial aircrafts.
The above description is given by way of example, and not limitation. Given the above disclosure, one skilled in the art could devise variations that are within the scope and spirit of the invention disclosed herein, including configurations ways of the recessed portions and materials and/or designs of the attaching structures. Further, the various features of the embodiments disclosed herein can be used alone, or in varying combinations with each other and are not intended to be limited to the specific combination described herein. Thus, the scope of the claims is not to be limited by the illustrated embodiments.
