Patent ID: 7558323

Claim:
A motion picture transmission method for transmitting a motion picture signal from an input terminal to a plurality of video reception units, respectively, through a video transmission unit including a compression processing unit and a plurality of transmission lines, each of which has a different transmission speed, said method comprising the steps of: generating stream data containing at least a Group of Pictures (GOP) having an Intra (I) picture and a plurality of Predictive (P) pictures relating to each picture of said motion picture signal in said compression processing unit, said stream data is receivable at a video reception unit connected via a transmission line having higher transmission speed than the bit rate of said stream data; storing a latest of said GOP into a memory unit of said video transmission unit, said memory unit being commonly used via said transmission lines; and transmitting said I picture and a different number of consecutive P pictures in the latest of said GOP on a GOP unit based on varying said different number in response to different transmission speeds of said transmission lines, respectively.