Video / audio signal history device and control method of VCR (VCR)

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a video / audio information signal history and control method of a VCR, and efficiently encodes video / audio information for a predetermined time before and after a current time,²The present invention provides a history device and a control method for storing and restoring past and future video / audio information during a predetermined time before and after a current time by decoding information stored in a PROM and decoding the stored information into an original signal. In order to achieve the above-described object, the present invention provides a quantizer unit 5 for quantizing a video signal and an audio signal, an encoder 6 for compressing a quantized signal, a memory 7 for storing compressed video / audio information, A decoder 8 for restoring the compressed video / audio information stored in the inverse quantizer 9, a dequantizer 9 for dequantizing the decompressed video / audio information, a switch S_One, S₂), A history designation key (K_One), A history storage key K (" K ") that can permanently store video / audio information stored in the memory 7₂A first step (100, 101, 102) for quantizing the video signal and the audio signal, compressing and storing the video signal and the audio signal, a second step of decompressing and dequantizing the stored video / (103, 104, 105, 106).