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Video system

A video system and video technology, applied in the field of video systems, can solve problems such as the failure to grasp the abnormal causes of the transmission path of video signals

Active Publication Date: 2008-04-30
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]However, in the conventional video system, although the disconnection or short circuit of the transmission path of the video signal can be diagnosed as a fault, there is an abnormality in the transmission path of the video signal that cannot be grasped. cause of the problem

Method used

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Embodiment Construction

[0050] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in this embodiment, a video system constituted by a video receiver in which the video signal acquisition device of the present invention is installed in a vehicle will be described as an example. In addition, the video signal acquisition device of the present invention may be constituted by a video camera, a navigation device, a DVD (Digital Versatile Disc) player, etc., in addition to the video receiver.

[0051] FIG. 1 shows a video system according to an embodiment of the present invention.

[0052] The image system 1 includes: a camera 2 for shooting the rear of the vehicle; an image receiver 3 composed of a television broadcast receiver; an image signal processing device 4 for processing the image signals received by the camera 2 and the image receiver 3; and The display device 5 outputs the video signal processed by the video signal processing device 4...

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Abstract

[PROBLEM] It is an object of the present invention to provide a video system capable of detecting a cause of abnormality of a transmission path of a video signal. [MEANS FOR SOLVING] The video system 1 comprising a video receiving unit 3 for obtaining a video signal, and a video signal processing device 4 for having a display device 5 display the obtained video signal, in which the video receiving unit 3 is operative to determine that a transmission path having the video signal transmitted to the video signal processing device 4 is in one of a normal state, an open state, a power connected state, and a ground connected state based on a direct current signal level obtained from the transmission path of the video signal.

Description

technical field [0001] The present invention relates to a video system for causing a display device to display acquired video signals. Background technique [0002] Conventionally, as a video system that causes a display device to display an acquired video signal, there is a video system that is set by setting the logical value represented by a parallel signal of a predetermined number of bits of the video signal below the output value when the video signal is dark. Judgment value is determined to be a failure for a certain period of time, and even if at least one of the parallel signal input paths is disconnected or short-circuited, it can be diagnosed as a failure without enlarging the circuit configuration (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Unexamined Patent Publication No. 8-19007 Contents of the invention [0004] The problem to be solved by the invention [0005] However, in the conventional video system, although it is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00H04N7/173H04N17/04H04N21/442
CPCH04N5/907G06F3/14G09G3/2096H04N5/77H04N17/00H04N21/41422G09G5/006H04N5/775H04N5/44H04L12/40117G09G1/167H04N21/4223G09G3/006
Inventor 吉冈健司
Owner PANASONIC CORP