Patent ID: 11882285
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A device for decoding a bitstream for a video signal including at least one precinct, the device comprising:
a first entropy decoder engine;
a second entropy decoder engine; and
a demultiplexer configured to demultiplex packets of a current precinct among the at least one precinct into a plurality of first packets and a plurality of second packets, transmit the first plural packets to the first entropy decoder engine, and transmit the second plural packets to the second entropy decoder engine,
wherein the first entropy decoder engine and the second entropy decoder engine perform parallel entropy decoding on the first plural packets and the second plural packets, respectively,
wherein the first plural packets include packet 0, packet 1, packet 4, packet 6, and packet 8, and the second plural packets include packet 2, packet 3, packet 5, packet 7, and packet 9,
wherein the packets 0 and 1 include code groups corresponding to a left half of a first line of the current precinct, the packets 2 and 3 include code groups corresponding to a left half of a second line of the current precinct, the packet 4 includes code groups corresponding to a right half of the first line of the current precinct, the packet 5 includes code groups corresponding to a left half of a third line of the current precinct, the packet 6 includes code groups corresponding to a right half of the third line of the current precinct, the packet 7 includes code groups corresponding to a right half of the second line of the current precinct, the packet 8 includes code groups corresponding to a left half of a fourth line of the current precinct, and the packet 9 includes code groups corresponding to a right half of the fourth line of the current precinct,
wherein one code group includes 4 quantization index information, and the quantization index information indicates quantized wavelet coefficient information, and
wherein a position of each packet in the current precinct depends on a wavelet transformation.