数据包被转发前需要被完全接收下来，并且计算帧校验序列，该序列值错误的包将会被丢弃。
The frame is completely received before it is relayed as the Frame Check Sequence (FCS) is to be calculated and the frame discarded if in error.
按照MPEG - 4的校验模型，视频序列必须先分割成具有语义意义的视频对象，然后对其运动、形状和纹理分别进行编码。
According to the MPEG-4 verification model, video sequence must be segmented into semantic video objects. Their motion, shape and texture information are coded respectively.
该方法将数字签名嵌入DNA序列，在使用前通过校验数字签名来发现DNA是否篡改，以便给出篡改提示。
This method adds digital signature to the DNA sequences, and finds the juggling by checking it before using the data.
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