Method and device for reducing and enlarging sub-picture video signals, and television with same

子画面视频信号的缩放方法、装置及具有该装置的电视机

Abstract

本发明实施例公开了一种子画面视频信号的缩放方法、装置及具有该装置的电视机,涉及信号处理技术领域。为了解决现有技术中,子画面的视频信号与主画面视频信号的缩放时钟域较多,从而造成缩放电路设计复杂,占用电路空间资源较大,增加了设计成本的问题而发明。本发明实施例提供的一种子画面视频信号的缩放方法,包括:接收子画面视频信号,并将其进行移位寄存;获取缩放参数以及输出控制信号;根据所述缩放参数,进行子画面视频信号的缩放;按照所述输出控制信号,输出缩放后的子画面视频信号。
The embodiment of the invention discloses a method and a device for reducing and enlarging sub-picture video signals and a television with the same and relates to the technical field of signal processing. The invention solves the problem existing in the prior art that reducing and enlarging clock fields of sub-picture video signals and main picture video signals are excessive, thereby causing thecomplicated design of reducing and enlarging circuits, occupying larger circuit spatial resources and increasing the design cost. The method for reducing and enlarging sub-picture video signals, whichis provided by the embodiment, comprises the following steps: receiving sub-picture video signals; shifting; registering; obtaining reducing and enlarging parameters and output control signals; reducing and enlarging the sub-picture video signals according to the reducing and enlarging parameters; and outputting the reduced and enlarged sub-picture video signals according to the output control signals.

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