Patent ID: 6064795
Filing Date: 2000-05-16
Classification: H04N

Abstract:
A data transmission method in which data obtained by compression-coding a moving picture signal of a fixed period of time T into compression coded data is transmitted through a transmission line, comprising the steps of:writing the compression-coded data to a first buffer memory and inhibiting data output to the transmission line for a fixed period of time Tw from the input start of the compression-coded data to the first buffer memory;after the fixed period of time Tw has elapsed, continuing the writing of the compression-coded data to the first buffer memory and reading out the compression-coded data written to the first buffer memory at a data rate Rw which is not lower than the data rate Re of the writing to the first buffer memory, wherein the fixed period of time Tw is set to be a value (Be/Re) which is not smaller than the value of the minimum requisite time for reading an amount of data corresponding to the total capacity (Be) of a second buffer memory provided in an encoding section for encoding the moving picture signal into compression-coded data and outputting said compression-coded data from said second buffer memory and according to the equation:Rw>=(Re.times.T+Be)/T=Re+Be/T;packetizing the read compression-coded data of a fixed size; andoutputting the packetized data to the transmission line.