Patent ID: 6148035
Filing Date: 2000-11-14
Classification: H04N

Abstract:
A method of restoring a processed signal representing a moving picture which is divided into a plurality of frames such that each respective frame is formed of one odd field and one even field, the processed signal obtained by detecting a redundant field from an input signal, by combining the odd and even fields to form the respective frames such that the redundant field is eliminated from the input signal, by inserting a predetermined invalid frame into the input signal to obtain an output signal for processing at a substantially the same clock rate as a predetermined clock rate of the input signal, and by adding supplemental data to the output signal, said method comprising the steps of:separating from the processed signal the supplemental data which indicates which of the respective odd and even fields were combined to form the respective frames and further indicates where the predetermined invalid frame was inserted;removing the predetermined invalid frame from the processed signal based on the supplemental data; andrepeating a respective field in the processed signal at a portion from which the predetermined invalid frame was removed for generating the redundant field, whereby the processed signal is substantially the same as the input signal.