Patent ID: 8385408

Claim:
An image transmitting apparatus, comprising: a database configured to store first moving image data for multiple speed reproduction separately generated from second moving image data for normal speed reproduction, the first moving image data being constructed using I-frames selected from a plurality of group of pictures (GOPs) included in the second moving image data; a data transceiver configured to receive a signal requesting a bit stream for reproducing a moving image at an arbitrary multiple speed, and to transmit the bit stream for reproducing a moving image at an arbitrary multiple speed according to the signal; and a controller configured to control transmission of the bit stream for reproducing a moving image at the arbitrary multiple speed based on the first moving image data stored in the database, wherein the bit stream for reproducing a moving image at an arbitrary multiple speed includes a combination of framesets, wherein each frameset is generated by duplicating an I-frame included in the first moving image data ‘n’ times, and then by consecutively arranging the ‘n’ I-frames, and wherein the ‘n’ is expressed as the following equation: n = N ( the ⁢ ⁢ number ⁢ ⁢ of ⁢ ⁢ frames ⁢ ⁢ included ⁢ ⁢ in ⁢ ⁢ one ⁢ ⁢ GOP number ⁢ ⁢ of ⁢ ⁢ multiple ⁢ ⁢ speed ⁢ ⁢ of ⁢ ⁢ a ⁢ ⁢ moving image ⁢ ⁢ to ⁢ ⁢ be ⁢ ⁢ reproduced ⁢ ⁢ at ⁢ ⁢ a ⁢ ⁢ multiple ⁢ ⁢ speed ⁢ ) , ⁢ ( N ⁡ ( a ) = x , x ≤ a < x + 1 , x ⁢ ⁢ is ⁢ ⁢ an ⁢ ⁢ integer ) .