Standard video signal creating method and device in videocorder mode

Abstract

The invention relates to a standard image signal generating method, based on recorder mode, and a relative device, especially receiving VCR signal to generate standard image signal, wherein it comprises following steps: waiting for inputting vertical synchronous signal; inputting vertical synchronous signal, throwing out the image signals relative to the horizontal synchronous signals less than L that ruled by VCR, to store the image data of horizontal synchronous signals after L into memory; if inputting M horizontal synchronous signals caught in video catch area, interrupting the catch; then for catching semi-frame signal, waiting; using standard clock, guiding out stored image data. The invention can reduce the horizontal vibration and up-to-down motion when converting static image mode into digit image signal, to simplify the signal converter that converting non-standard image into standard image, to reduce the producing cost.

Description

technical field [0001] The invention relates to a method and device for receiving VCR (video recorder, hereinafter referred to as VCR) signals and generating standard image signals, especially for improving the horizontal jitter phenomenon and the up and down of the picture when converting digital image signals in the still image mode of VCR. The invention of a standard image signal generation method and device according to the VCR mode can achieve the effect of reducing the price by simplifying the signal conversion part that converts non-standard images into standard images. Background technique [0002] Recently, analog video recording devices such as VCRs have been rapidly replaced by digital video recording devices such as DVDs. The existing recording and playing method of the VCR system records / plays nonstandard video signals, while DVD and the like record / play back standard video signals. The actual situation now is that VCR and DVD coexist in the video equipment pro...

AI Technical Summary

Problems solved by technology

[0007] The method mentioned above is effective when the signal is close to the standard image, but when the still image mode (Still, Cue, Rev) of the VCR is like that, when the synchronous signal changes seriously and the length of each mode L' is different , the picture will shake up and down from a fixed state or the picture will move up or down

In particular, the VCR has the situation that the L' value of the even field and the odd field is not fixed, and in the still state, there may be a problem of jitter in the even field and the odd field

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