公开(公告)号：US08804817B2

公开(公告)日：2014-08-12

申请号：US13720927

申请日：2012-12-19

Applicant: LG Electronics Inc.

Inventor： Hyoung Gon Lee ,  In Hwan Choi ,  Byoung Gill Kim ,  Won Gyu Song ,  Jong Moon Kim ,  Jin Woo Kim

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC classification number: H04L1/0041 ,  H03M13/09 ,  H03M13/15 ,  H03M13/1515 ,  H03M13/23 ,  H03M13/2732 ,  H03M13/2909 ,  H03M13/2915 ,  H03M13/2918 ,  H03M13/2927 ,  H03M13/293 ,  H03M13/2933 ,  H03M13/356 ,  H03M13/3723 ,  H04L1/0071 ,  H04N21/235 ,  H04N21/2383 ,  H04N21/435 ,  H04N21/4382

Abstract: A DTV transmitting system includes a frame encoder, a randomizer, a block processor, a group formatter, a deinterleaver, and a packet formatter. The frame encoder builds an enhanced data frame and adds parity data into the data frame. The frame encoder further divides the data frame into first and second sub-frames including first and second portions of the parity data, respectively, and permutes a plurality of the first sub-frames and a plurality of the second sub-frames, respectively. The randomizer randomizes enhanced data in the permuted sub-frames, and the block processor codes the randomized data at a rate of 1/N1. The group formatter forms a group of enhanced data having one or more data regions and inserts the 1/N1 coded data into at least one of the data regions. The deinterleaver deinterleaves the group of enhanced data, and the packet formatter formats the deinterleaved data into enhanced data packets.

Abstract translation: DTV发送系统包括帧编码器，随机发生器，块处理器，组格式器，解交织器和分组格式化器。 帧编码器构建增强型数据帧，并将奇偶校验数据添加到数据帧中。 帧编码器还将数据帧分别分别包括奇偶校验数据的第一和第二部分的第一和第二子帧，分别对多个第一子帧和多个第二子帧进行置换。 随机化器将置换的子帧中的增强数据随机化，并且块处理器以1 / N1的速率对随机数据进行编码。 组格式化器形成一组具有一个或多个数据区域的增强数据，并将1 / N1编码数据插入至少一个数据区域。 解交织器对一组增强数据进行解交织，并且数据包格式化器将解交织的数据格式化为增强的数据包。