Patent ID: 6084637
Filing Date: 2000-07-04
Classification: H04N,Y10S

Abstract:
A decoding/displaying device for decoding coded picture data which are coded by a hybrid technique of intra-frame, predictive inter-frame and bi-directional inter-frame coding, the device comprising:decoding means for receiving and decoding coded picture data;memory means for storing coded picture data and decoded picture data obtained by said decoding means;display means for reading the decoded picture data from said memory means and outputting display picture data; andcontrol means for controlling operation timing of said decoding means and said display means,wherein said memory means is connected to said decoding means and said display means, and contains a plurality of frame memories for storing said decoded picture data,wherein said decoding means decodes coded picture data with a first picture aspect ratio to generate said decoded picture data and said display means outputs display picture data with a second picture aspect ratio, andwherein the second picture aspect ratio is narrower than the first picture aspect ratio and a number of effective scanning lines of said display picture data is less than that of said coded picture data.