公开(公告)号：US06907072B2

公开(公告)日：2005-06-14

申请号：US10148185

申请日：2000-12-14

申请人： Hirokazu Kawakatsu ,  Atsushi Asano

发明人： Hirokazu Kawakatsu ,  Atsushi Asano

IPC分类号： H04N19/50 ,  H04L1/00 ,  H04N19/102 ,  H04N19/107 ,  H04N19/146 ,  H04N19/15 ,  H04N19/166 ,  H04N19/176 ,  H04N19/196 ,  H04N19/423 ,  H04N19/503 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/65 ,  H04N19/85 ,  H04N19/91 ,  H04B1/66 ,  H04N1/66

CPC分类号： H04L1/0014 ,  H04N19/105 ,  H04N19/107 ,  H04N19/149 ,  H04N19/15 ,  H04N19/152 ,  H04N19/166 ,  H04N19/172 ,  H04N19/176 ,  H04N19/192 ,  H04N19/61

摘要： In a moving image encoding apparatus of this invention, a generated bit amount extracting section (21) counts generated bits of variable-length-encoded data in units of macroblocks, and a reference generated bit count is set in a parameter value control section (22) as an update condition for a parameter value in each block. The boundary value of the parameter value is set in an intra/inter determination section (23) as a criterion for selection of the intra-encoding mode. In the inter-frame encoding mode, the parameter value control section (22) updates the parameter value of a block in which the generated bit count value of encoded data obtained by the generated bit amount extracting section (21) exceeds a reference value. The intra/inter determination section (23) determines that the influence of a data error is large in a block in which the parameter value is continuously updated and exceeds the boundary value, and switches the current mode to the intra-encoding mode to perform refresh operation.

摘要翻译： 在本发明的运动图像编码装置中，生成比特量提取部（21）以宏块为单位对可变长度编码数据的生成比特进行计数，在参数值控制部（22）中设定基准生成比特数 ）作为每个块中参数值的更新条件。 在帧内/帧间确定部（23）中设定参数值的边界值作为帧内编码模式的选择标准。 在帧间编码模式中，参数值控制部（22）更新生成的比特量提取部（21）得到的编码数据的生成比特计数值超过基准值的块的参数值。 帧内/帧间确定部（23）确定参数值不断更新并超过边界值的块中的数据误差的影响大，并将当前模式切换为帧内编码模式进行刷新 操作。

公开(公告)号：US08131127B2

公开(公告)日：2012-03-06

申请号：US12151247

申请日：2008-05-05

申请人： Yuta Nakamura ,  Hirokazu Kawakatsu

发明人： Yuta Nakamura ,  Hirokazu Kawakatsu

IPC分类号： H04N7/26

CPC分类号： H04N21/23406 ,  H04N5/76 ,  H04N21/42615 ,  H04N21/42661 ,  H04N21/42692 ,  H04N21/4305 ,  H04N21/4333 ,  H04N21/4334 ,  H04N21/434 ,  H04N21/4344 ,  H04N21/44004

摘要： To store TS packet in an external memory connected via an external IF unit at the time shift reproduction time, a buffer for storage is provided at a previous stage and a buffer for reproduction is provided at a subsequent stage. When the data storage in the external memory runs out as the time shift reproduction proceeds, a time shift data managing unit executes a temporary time shift by the buffer for storage and the buffer for reproduction capable of reading and writing at a higher speed than the external memory without mediation of the external memory and then the time shift reproduction mode is changed to the general reproduction mode by a demultiplex mode control unit.

摘要翻译： 为了将TS分组存储在通过外部IF单元在时移重放时连接的外部存储器中，在前一级提供用于存储的缓冲器，并且在后续阶段提供用于再现的缓冲器。 当外部存储器中的数据存储器随着时间移位再现的进行而耗尽时，时移数据管理单元执行用于存储的缓冲器的暂时时间移位和能够以比外部的更高的速度进行读写的再现缓冲器 存储器，而不需要外部存储器的中介，然后通过解复用模式控制单元将时移再现模式改变为一般再现模式。

公开(公告)号：US07039070B2

公开(公告)日：2006-05-02

申请号：US09983674

申请日：2001-10-25

申请人： Hirokazu Kawakatsu

发明人： Hirokazu Kawakatsu

IPC分类号： H04J3/06 ,  H04N7/00 ,  H04N5/04

CPC分类号： H04N21/42203 ,  H04N21/2368 ,  H04N21/242 ,  H04N21/41407 ,  H04N21/4223 ,  H04N21/4307 ,  H04N21/4341

摘要： Error correcting section holds PTS(n−1) and DTS(n−1) of the frame immediately preceding the current frame and the most recent CPTS as determined to be correct in the past. The time stamp of the current frame is determined to be incorrect if (1) CPTS>PTS(n) which is the current frame or (2) CPTS

公开(公告)号：US20090148134A1

公开(公告)日：2009-06-11

申请号：US12151247

申请日：2008-05-05

申请人： Yuta Nakamura ,  Hirokazu Kawakatsu

发明人： Yuta Nakamura ,  Hirokazu Kawakatsu

IPC分类号： H04N7/26

CPC分类号： H04N21/23406 ,  H04N5/76 ,  H04N21/42615 ,  H04N21/42661 ,  H04N21/42692 ,  H04N21/4305 ,  H04N21/4333 ,  H04N21/4334 ,  H04N21/434 ,  H04N21/4344 ,  H04N21/44004

摘要： To store TS packet in an external memory connected via an external IF unit at the time shift reproduction time, a buffer for storage is provided at a previous stage and a buffer for reproduction is provided at a subsequent stage. When the data storage in the external memory runs out as the time shift reproduction proceeds, a time shift data managing unit executes a temporary time shift by the buffer for storage and the buffer for reproduction capable of reading and writing at a higher speed than the external memory without mediation of the external memory and then the time shift reproduction mode is changed to the general reproduction mode by a demultiplex mode control unit.

摘要翻译： 为了将TS分组存储在通过外部IF单元在时移重放时连接的外部存储器中，在前一级提供用于存储的缓冲器，并且在后续阶段提供用于再现的缓冲器。 当外部存储器中的数据存储器随着时间移位再现的进行而耗尽时，时移数据管理单元执行用于存储的缓冲器的暂时时间移位和能够以比外部的更高的速度进行读写的再现缓冲器 存储器，而不需要外部存储器的中介，然后通过解复用模式控制单元将时移再现模式改变为一般再现模式。

公开(公告)号：US20080225942A1

公开(公告)日：2008-09-18

申请号：US12072706

申请日：2008-02-27

申请人： Yuta Nakamura ,  Hirofumi Mori ,  Hirokazu Kawakatsu ,  Tatsunori Saito

发明人： Yuta Nakamura ,  Hirofumi Mori ,  Hirokazu Kawakatsu ,  Tatsunori Saito

IPC分类号： H04B1/66

CPC分类号： H04N21/4305 ,  H04N21/235 ,  H04N21/4333 ,  H04N21/435

摘要： A contents reproducing apparatus includes a receiving unit configured to receive a first packet having an ES in which encoded video or audio data is stored, and a second packet having the ES and a PCR, a counter configured to count a STC and output the counted STC as a STC value, a buffer configured to store the first and second packets in an order of reception in a time shift reproduction mode and a time shift storage mode, a correcting unit configured to correct the PCR included in the second packet received by the receiving unit by using the STC value and output the corrected PCR, in the time shift reproduction mode, and a control unit configured to control the STC in accordance with the corrected PCR and the STC value, in the time shift reproduction mode.

摘要翻译： 一种内容再现装置，包括：接收单元，被配置为接收具有其中存储有编码视频或音频数据的ES的第一分组，以及具有ES和PCR的第二分组，被配置为对STC进行计数并输出所计数的STC 作为STC值，配置为按照时移再现模式和时移存储模式以接收顺序存储第一和第二分组的缓冲器，被配置为校正由接收到的第二分组中包含的PCR 通过使用STC值并在时移再现模式下输出校正的PCR，以及控制单元，被配置为在时移再现模式中根据校正的PCR和STC值来控制STC。