Method and device for transmitting video data in radio communication system

Abstract

A device for transmitting video data is provided which includes a temporary memory, a standby memory, a bit counter, and a controller. The temporary memory stores N original blocks of data which are variable length coded such that a plurality of the blocks have different bit rate lengths. The standby memory sequentially stores N processed blocks such that the N processed blocks each have a bit rate length that is equal to or less than a specified bit rate length and subsequently outputs the N processed blocks to be transmitted at a fixed bit rate. The bit counter generates address signals for storing the N original blocks in the temporary memory and generates an address signal for storing the N processed blocks in the standby memory. The controller determines a data state of the N original blocks input to the temporary memory and uses the data state to control the bit counter to read original data of the N original blocks from the temporary memory at a reading bit rate which is shorter than or equal to the specified bit rate and to write the original data in the standby memory as the N processed blocks. A method performed by the device is also provided.