Patent Application
20090070813
The present invention relates to a back up display system and a method of the same, particularly to a back up system which switches to broadcast the other image information when the original image signal is irregular.
The conventional display system mostly adopts a broadcasting format that acquires an image signal directly then converts it into a broadcasting unit to provide the broadcasting unit to broadcast. When the signal acquired by the display system is in signal irregular state such as having surges, noises, unrecognizable codes or the signal content is all black or white, it has to wait until someone notices it and fixes the above mentioned signal irregularity problems. However, during the period between a signal irregularity occurs and it is restored completely, the broadcasting unit does not broadcast normally and makes viewers feel abruptly or uncomfortably in visual. Alternatively, if the broadcasting unit is switched to broadcast the other signal manually, viewers still feel abruptly or uncomfortably in visual during the period between a signal irregularity occurs and it is switched manually. Consequently, how to prevent the negative impact on viewers when the above mentioned signal irregularity occurs has been a subject that the industry aims to overcome.
The main objective of the present invention is to switch the broadcasting unit automatically to broadcast the preset back up image information when the broadcasting signal is irregular to avoid negative impact on viewers.
To achieve the above mentioned objective the present invention provides a back up display system of a signal irregularity. It comprises of a transmission unit acquiring an image signal; a back up display unit having a back up image information; an irregularity detecting unit detecting the image signal and outputting a switching signal when it determines the image signal is in irregular state; a broadcasting unit acquiring and broadcasting the image information of the transmission unit in the regular state and discontinuing to broadcast the image signal of the transmission unit by broadcasting the back up image information of the back up display unit instead when the irregularity detecting unit outputs a switching signal.
Furthermore the present invention provides a back up display method of a signal irregularity. It comprises of a regular state broadcasting step broadcasting an image signal by utilizing a broadcasting unit; a detecting step detecting the image signal to determine whether the image signal is in regular state or not; a switching step replacing the image signal with a back up image information to broadcast the broadcasting unit after determining the image signal is irregular.
The other advantage, objective, technical feature and effectiveness of the present invention will be better understood by the detail description of preferred embodiment in conjunction with the following figure.
Referring to
It is noticed that in the present embodiment the broadcasting unit 4 acquires the image signal and the back up image information concurrently and broadcasts either the image signal or back up image information by means of shielding. However, in practice the broadcasting unit 4 can merely acquire the image signal in regular state to extract the back up image information from the back up display unit 2 to broadcast after receiving the switching signal.
Referring to
To sum up, by means of the back up display system of a signal irregularity of the present invention and the method of the same it can avoid the negative impacts on viewers when conventional signal irregularity occurs by instantly switching to broadcast the back up image information automatically after determining the image signal of the broadcasting unit 4 is irregular.
While the invention has been described by way of example and in terms of a preferred embodiment, it is to be understood that the invention is not limited thereto. On the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.
