公开(公告)号：US5111292A

公开(公告)日：1992-05-05

申请号：US661995

申请日：1991-02-27

申请人： Joseph Kuriacose ,  Alfonse A. Acampora ,  Joel W. Zdepski

发明人： Joseph Kuriacose ,  Alfonse A. Acampora ,  Joel W. Zdepski

IPC分类号： H04N7/015 ,  H04N5/44 ,  H04N7/26 ,  H04N21/234 ,  H04N21/2343 ,  H04N21/2383 ,  H04N21/438 ,  H04N21/44 ,  H04N21/63

CPC分类号： H04N5/4401 ,  H04N19/37 ,  H04N21/23406 ,  H04N21/234327 ,  H04N21/44004 ,  H04N21/631 ,  H04N21/2383 ,  H04N21/4382

摘要： Apparatus for encoding/decoding a HDTV signal for e.g. terrestrial transmission includes a priority selection processor for parsing compressed video codewords between high and low priority channels for transmission. A compression circuit responsive to high definition video source signals provides hierarchically layered codewords CW representing compressed video data and associated codewords T. defining the types of data represented by the codewords CW. The priority selection processor, responsive to the codewords CW and T, counts the number of bits in predetermined blocks of data and determines the number of bits in each block to be allocated to the respective channels. Thereafter the processor parses the codewords CW into high and low priority codeword sequences wherein the high and low priority codeword sequences correspond to compressed video data of relatively greater and lesser importance to image reproduction respectively.

摘要翻译： 用于对例如HDTV信号进行编码/解码的装置。 地面传输包括用于解析高优先级信道和低优先级信道之间的压缩视频码字的优先级选择处理器用于传输。 响应于高分辨率视频源信号的压缩电路提供层次分层的码字CW，其表示压缩视频数据和相关联的码字T.定义由码字CW表示的数据类型。 优先级选择处理器响应于码字CW和T，对预定数据块中的比特数进行计数，并确定要分配给各个信道的每个块中的比特数。 此后，处理器将码字CW解析为高优先级和低优先级码字序列，其中高优先权码字序列和低优先级码字序列分别对应于对图像再现具有相对较大和较小重要性的压缩视频数据。

公开(公告)号：US5231384A

公开(公告)日：1993-07-27

申请号：US750164

申请日：1991-08-26

申请人： Joseph Kuriacose

发明人： Joseph Kuriacose

IPC分类号： H04N7/015 ,  H04N7/08 ,  H04N7/081 ,  H04N7/26 ,  H04N11/04

CPC分类号： H04N11/044 ,  H04N19/37

摘要： A video signal compression system provides compressed video data in groups of frames and divides the compressed video data between high and low priority channels according to a predetermined hierarchy of compressed video codeword types. The fraction of data to be applied to the respective channels is not determined by the ratio of the data handling capacity of the two channels, but rather on a frame by frame basis in accordance with the actual channel capacity remaining for the respective group of frames.

摘要翻译： 视频信号压缩系统以帧为单位提供压缩视频数据，并根据压缩视频码字类型的预定层级，在高优先权信道和低优先级信道之间划分压缩视频数据。 要应用于各个信道的数据的分数不是由两个信道的数据处理能力的比率决定的，而是根据相应组的帧剩余的实际信道容量逐帧地确定。