Patent ID: 7978762
Filing Date: 2011-07-12
Classification: H04N

Abstract:
1. A transcoder device for transcoding a compressed and encoded bitstream of a motion picture in a syntax level, the transcoder device comprising: means for receiving encoding information transmitted from a motion-picture encoding and transmitting device and decoding information transmitted from a motion-picture receiving and decoding device, referring to the encoding information and the decoding information to determine whether the syntax in a video packet transmitted from the motion-picture encoding and transmitting device is transcoded, and outputting transcoding control information including a difference between input encoding tools used in an input encoded bitstream transmitted from the motion-picture encoding and transmitting device and output encoding tools used in an output encoded bitstream output from a transmission device to the motion-picture receiving and decoding device; and means for transcoding the input encoded bitstream in the syntax level on the basis of the transcoding control information and transmitting the transcoded encoded bitstream as the output encoded bitstream to the motion-picture receiving and decoding device.