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1. 发明授权

US6075900A Method of and apparatus for coded moving picture data hierarchy formation 失效
标题翻译：编码运动图像数据层次结构的方法和装置
公开(公告)号：US6075900A
公开(公告)日：2000-06-13
申请号：US7223
申请日：1998-01-14
申请人： Shigeyuki Sakazawa , Yasuhiro Takishima , Masahiro Wada
发明人： Shigeyuki Sakazawa , Yasuhiro Takishima , Masahiro Wada
IPC分类号： H04N19/50 , G06T9/00 , H03M7/30 , H04N19/30 , H04N19/33 , H04N19/503 , H04N19/51 , H04N19/60 , H04N19/61 , H04N19/625 , G06K9/36 , G06K9/46 , H04N1/415 , H04N7/12
CPC分类号： G06T9/007
摘要： This invention aims to form hierarchies of coded moving picture data in a simple method or apparatus. An I, P and B separator separates I, P and B picture data from coded moving picture data. A first to a third header/low/high separator separate headers and low and high DCT data components of the separated I, P and B picture data, and hierarchy forming means assigns the outputs of the separators for a 1-st to a 6-th hierarchy by supplying the outputs to packetizers therefor. The packetizers packetize the assigned data, and send out the packetized data on communication lines for the 1-st to 6-th hierarchies. For example, low frequency components of I picture data are provided as the 1-st hierarchy, high frequency components of I picture data are provided to the 2-nd hierarchy, low frequency components of P picture data are provided as the 3-rd hierarchy, high frequency components of P picture data are provided as the 4-th hierarchy, low frequency components of B picture data are provided as the 5-th hierarchy, and high frequency components of P picture data are provided as the 6-th hierarchy.
摘要翻译：本发明旨在以简单的方法或装置形成编码的运动图像数据的层级。 I，P和B分离器将I，P和B图像数据与编码的运动图像数据分离。分离的I，P和B图像数据的第一至第三报头/低/高分离器分离报头和低和高DCT数据分量，以及分层形成装置将分离器的输出分配给第一至第六分组，通过将输出提供给分组器来实现。打包器打包分配的数据，并发送第1至第6层次的通信线路上的打包数据。例如，提供I图像数据的低频分量作为第1层，将I图像数据的高频分量提供给第2层，提供P图像数据的低频分量作为第3层次提供P图像数据的高频分量作为第4层，提供B图像数据的低频分量作为第5层，并且提供P图像数据的高频分量作为第6层。

2. 发明授权

US5892881A Method and apparatus for transmitting dubbing data of digital VTR 失效
标题翻译：用于传输数字VTR的配音数据的方法和装置
公开(公告)号：US5892881A
公开(公告)日：1999-04-06
申请号：US107730
申请日：1998-06-30
申请人： Yasuhiro Takishima , Shigeyuki Sakazawa , Masahiro Wada
发明人： Yasuhiro Takishima , Shigeyuki Sakazawa , Masahiro Wada
IPC分类号： G06F13/00 , G11B27/031 , G11B27/032 , H04L12/801 , H04L12/811 , H04L12/911 , H04N5/765 , H04N5/92 , H04N5/93 , H04N9/804 , H04N19/126 , H04N19/14 , H04N19/423 , H04N19/60 , H04N19/625 , H04N19/91 , G11B27/00
CPC分类号： H04N5/765 , G11B27/032 , H04N19/115 , H04N19/126 , H04N19/14 , H04N19/152 , H04N19/162 , H04N19/172 , H04N19/42 , H04N19/60 , G11B2220/90 , G11B27/031 , H04N19/146 , H04N9/804
摘要： An encoding control unit obtains a quantization step size and a video encoding rate Rc on the basis of various kinds of conditions including a transmission time and image quality specified through an input unit by a user, and property of image contents from a signal compression processing unit. Next, the video encoding rate Rc is compared with a network transmission rate Rt which is obtained through a network IF unit. Then, if the transmission rate Rt of the network is smaller than the video encoding rate Rc and is present in the range any of values of which is equal to or larger than the value smaller than Rc by a predetermined quantity, then the quantization step size is corrected in such a way that the video encoding rate Rc is equal to or smaller than the transmission rate Rt of the network, or in such a way that the video encoding rate Rc is increased. As a result, it is possible to provide an apparatus for transmitting dubbing data of a digital VTR which is capable of suppressing the degradation of a transmission throughput.
摘要翻译：编码控制单元根据由用户通过输入单元指定的传输时间和图像质量以及来自信号压缩处理单元的图像内容的属性的各种条件，获得量化步长和视频编码率Rc 。接下来，将视频编码率Rc与通过网络IF单元获得的网络传输速率Rt进行比较。然后，如果网络的传输速率Rt小于视频编码率Rc，并且其值的任何值等于或大于小于Rc的值的预定量的范围内，则量化步长以使得视频编码率Rc等于或小于网络的传输速率Rt或者以增加视频编码率Rc的方式被校正。结果，可以提供一种用于发送能够抑制传输吞吐量劣化的数字VTR的转录数据的装置。

3. 发明授权

US07437285B2 Adaptive media encoding and decoding equipment 有权
标题翻译：自适应媒体编码和解码设备
公开(公告)号：US07437285B2
公开(公告)日：2008-10-14
申请号：US10135370
申请日：2002-05-01
申请人： Shigeyuki Sakazawa , Yasutoshi Watanabe , Yasuhiro Takishima , Masahiro Wada
发明人： Shigeyuki Sakazawa , Yasutoshi Watanabe , Yasuhiro Takishima , Masahiro Wada
IPC分类号： G10L19/00 , G10L19/14 , G06K9/36
CPC分类号： H04N21/23406 , H04N5/765 , H04N9/8042 , H04N19/132 , H04N19/149 , H04N19/15 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/197 , H04N19/40 , H04N19/463 , H04N19/50 , H04N19/587 , H04N19/59 , H04N21/2343 , H04N21/44004 , H04N21/6373 , H04N21/6377 , H04N21/6379 , H04N21/658 , H04N21/6582
摘要： An encoding unit encodes data at a first rate during an initial predetermined section of uncompressed data (a), and encodes data at a second rate after the initial predetermined section (where the first rate
摘要翻译：编码单元在未压缩数据（a）的初始预定部分期间以第一速率对数据进行编码，并且在初始预定部分（其中第一速率<第二速率）之后以第二速率对数据进行编码，并将编码数据存储在一个存储。将存储器以与网络的传输速率相等的传输速率读出存储的数据到网络。解码单元在初始预定区段期间以第一速率对接收到的数据进行解码，并且在初始预定区段之后以第二速率对接收到的数据进行解码。对于有限内容，接收数据的接收完成和解码完成同时进行。根据本发明，在确保相对于数据输入波动的公差的同时，可以在接收到动态图像和音乐等之后立即开始播放。此外，通过执行适合于内容的持续时间相对较短的数据（有限内容）的控制，可以发送更高质量的数据。

4. 发明授权

US06348954B1 Optimum motion vector determinator and video coding apparatus using the same 失效
标题翻译：最佳运动矢量确定器和使用其的视频编码装置
公开(公告)号：US06348954B1
公开(公告)日：2002-02-19
申请号：US09255188
申请日：1999-02-22
申请人： Yasuhiro Takishima , Shigeyuki Sakazawa , Masahiro Wada
发明人： Yasuhiro Takishima , Shigeyuki Sakazawa , Masahiro Wada
IPC分类号： H04N736
CPC分类号： H04N19/533 , G06T9/008 , H04N19/56
摘要： A motion vector candidate selector selects candidate motion vectors for a MB to be coded based on the allowable calculation amount supplied from a controller. A predictive motion vector determinator determines an optimum predictive motion vector from among the candidate motion vectors. A statistical amount measuring unit determines the variance of motion vectors from among the motion vectors already determined. A search area determinator determines the size of the search area based on the allowable calculation amount. Also, a predictive motion vector periphery searcher determines the shape of the search area from the variance of the motion vectors, sets the size of the shape to the value determined by the search area determinator, and with the optimum predictive motion vector as an origin, searches the search area. An optimum motion vector is determined from among the motion vectors thus searched. The above-described configuration can provide a video coding apparatus capable of detecting an optimum motion vector with high accuracy with a small calculation amount.
摘要翻译：运动矢量候选选择器基于从控制器提供的允许计算量来选择要编码的MB的候选运动矢量。预测运动矢量确定器从候选运动矢量中确定最佳预测运动矢量。统计量测量单元确定已经确定的运动矢量中运动矢量的方差。搜索区域确定器基于允许的计算量确定搜索区域的大小。此外，预测运动矢量外围搜索器根据运动矢量的方差确定搜索区域的形状，将形状的大小设置为由搜索区域确定器确定的值，并以最佳预测运动矢量为起点，搜索搜索区域。从这样搜索的运动矢量中确定最佳运动矢量。上述配置可以提供能够以小的计算量以高精度检测最佳运动矢量的视频编码装置。

5. 发明授权

US5883589A Variable length code construction apparatus 失效
标题翻译：可变长度代码施工设备
公开(公告)号：US5883589A
公开(公告)日：1999-03-16
申请号：US803441
申请日：1997-02-20
申请人： Yasuhiro Takishima , Shigeyuki Sakazawa , Masahiro Wada
发明人： Yasuhiro Takishima , Shigeyuki Sakazawa , Masahiro Wada
IPC分类号： H03M7/40
CPC分类号： H03M7/40
摘要： An apparatus for constructing a variable length code includes a unit for producing a unique word consisting of continuous N "0" bits, a prefix processing unit for producing a codeword including at least one "1" bit, the prefix of the codeword having continuous "0" bits with a length equal to or shorter than s, and a suffix processing unit for modifying a bit pattern of the produced codeword from the prefix processing unit so that the suffix of the codeword has continuous "0" bits with a bit length equal to or shorter than t, that a bit length of continuous "0" bits in the codeword is shorter than N, and that s+t
摘要翻译：用于构造可变长度代码的装置包括用于产生由连续N“0”位组成的唯一字的单元，用于产生包括至少一个“1”位的码字的前缀处理单元，具有连续“ 0“比特，长度等于或小于s的后缀处理单元，用于修改来自前缀处理单元的所产生的码字的比特模式的后缀处理单元，使得码字的后缀具有连续的”0“比特，比特长度相等到或短于t，码字中的连续“0”位的位长度短于N，并且满足s + t

6. 发明授权

US06898247B2 Apparatus for dividing, compressing and transmitting video data 有权
标题翻译：用于分割，压缩和传输视频数据的装置
公开(公告)号：US06898247B2
公开(公告)日：2005-05-24
申请号：US09963576
申请日：2001-09-27
申请人： Yasuhiro Takishima , Tetsuji Yamashita , Shigeyuki Sakazawa , Masahiro Wada
发明人： Yasuhiro Takishima , Tetsuji Yamashita , Shigeyuki Sakazawa , Masahiro Wada
IPC分类号： H03M7/30 , H04N19/00 , H04N19/36 , H04N19/42 , H04N19/85 , H04N7/12
CPC分类号： H04N19/37
摘要： A first encoding section encodes an original picture S(1) and outputs it to a communication line of a first channel. The encoded image data is decoded in a first decoding section. This decoded data C(1) is input to a first compensation section. The first compensation section uses the original picture S(1) and the decoded data C(1) as the input, and performs calculation of the following expression (1) to thereby generate a first compensated original picture S(2): S ⁡ ( i + 1 ) = ( S ⁡ ( 1 ) × i - ∑ k = 1 i ⁢ C ⁡ ( k ) ) / ( N - i ) + S ⁡ ( 1 ) ( 1 ) wherein i=2 to N, and N denotes the total number of channels in image encoding. The first compensated original picture S(2) is encoded in a second encoding section and output from a communication line of a second channel. Thereafter, similar operation is performed for the total number of channels N. According to this invention, there can be provided an apparatus for dividing, compressing and transmitting video data that can sufficiently improve the encoding efficiency, without requiring preferential transmission of the basic data.
摘要翻译：第一编码部分对原始图像S（1）进行编码，并将其输出到第一信道的通信线路。编码图像数据在第一解码部分中解码。该解码数据C（1）被输入到第一补偿部。第一补偿部使用原始图像S（1）和解码数据C（1）作为输入，并且执行以下表达式（1）的计算，从而生成第一补偿原始图像S（2）：其中i = 2至N，N表示图像编码中的通道总数。第一补偿原始图像S（2）被编码在第二编码部分中并从第二通道的通信线路输出。此后，对信道总数N执行类似的操作。根据本发明，可以提供一种用于分割，压缩和发送可以充分提高编码效率的视频数据的装置，而不需要优先传输基本数据。

7. 发明授权

US06856650B1 Method and apparatus for second or later generation coding of video signal 失效
标题翻译：用于视频信号的第二次或后续编码的方法和装置
公开(公告)号：US06856650B1
公开(公告)日：2005-02-15
申请号：US08893379
申请日：1997-07-11
申请人： Yasuhiro Takishima , Shigeyuki Sakazawa , Masahiro Wada
发明人： Yasuhiro Takishima , Shigeyuki Sakazawa , Masahiro Wada
IPC分类号： H04B1/66 , H04N7/26 , H04N7/50
CPC分类号： H04N19/40 , H04N19/46 , H04N19/61
摘要： At second or later generation coding of video signal in tandem video coding, at least one coding parameter of previous coding is estimated in accordance with picture properties of the input video signal, and the estimated coding parameter in the previous coding is used in the second or later coding.
摘要翻译：在串行视频编码中的视频信号的第二次或后续编码时，根据输入视频信号的图像属性来估计先前编码的至少一个编码参数，并且将先前编码中的估计编码参数用于第二或后来编码。

8. 发明授权

US06701373B1 Data transmission apparatus 失效
标题翻译：数据传输装置
公开(公告)号：US06701373B1
公开(公告)日：2004-03-02
申请号：US09613287
申请日：2000-07-10
申请人： Shigeyuki Sakazawa , Yasuhiro Takishima , Masahiro Wada
发明人： Shigeyuki Sakazawa , Yasuhiro Takishima , Masahiro Wada
IPC分类号： G06F1516
CPC分类号： H04L67/06 , H04L69/14 , H04L69/329 , H04L69/40
摘要： When a predetermined amount of data is written in a file of a magnetic disk, a data pack creating section creates a data pack. A plurality of transmission threads allocates the data pack, and transmits it to a plurality of receiving threads via a connection. The received data pack is written in a magnetic disk. The transmission threads register a data pack, a transmission starting flag and a file position of the data pack in a transmission control table included in a transmission control section. The transmission threads are operated independently from each other, and when finishing a transmission of the allocated data pack, first, investigate a retry queue, and then, transmit a data pack if the data pack exists in the retry queue, and request a data pack from the data pack creating section so as to transmit the data pack if no data pack exists, in the retry queue. Therefore, according to the present invention, it is possible to provide a data transmission apparatus which can transmit a high quality file at a high speed.
摘要翻译：当预定量的数据被写入磁盘的文件中时，数据包创建部分创建数据包。多个传输线程分配数据包，并经由连接将其发送到多个接收线程。接收的数据包被写入磁盘。发送线程在包括在发送控制部分中的发送控制表中注册数据包，数据包的发送开始标志和文件位置。传输线程彼此独立地操作，并且当完成所分配的数据包的传输时，首先，调查重试队列，然后如果数据包存在于重试队列中，则发送数据包，并请求数据包从数据包创建部分发送数据包，如果没有数据包存在，则在重试队列中。因此，根据本发明，可以提供一种可以高速传输高品质文件的数据传输装置。

9. 发明授权

US6011587A Packet video bitrate conversion system 失效
标题翻译：分组视频比特率转换系统
公开(公告)号：US6011587A
公开(公告)日：2000-01-04
申请号：US801063
申请日：1997-02-14
申请人： Shigeyuki Sakazawa , Yasuhiro Takishima , Masahiro Wada
发明人： Shigeyuki Sakazawa , Yasuhiro Takishima , Masahiro Wada
IPC分类号： H04N7/26 , H04N7/30 , H04N7/36 , H04N7/50 , H04N21/63 , H04N21/6371 , H04N21/647 , H04N7/12
CPC分类号： H04N21/64792 , H04N19/37 , H04N19/503 , H04N21/632 , H04N21/6371 , H04N21/64738 , H04N19/70
摘要： An H. 261 encoder outputs coded video data together with a mode selection signal and a judging signal as to discarding or not of a packet. A packetizer receives the output signal from the H. 261 encoder and separately packetizes motion data and DCT data in the input coded data. A gateway judges whether packet including the DCT data is discarded or not with reference to the packet discarding judging signal and also to the bitrate of the network to which the gateway is connected. The gateway thus can effect bitrate conversion according to the bitrate of the network with a simple construction. The gateway may selectively discard high frequency component packets without discarding low frequency component packets, or it may not discard first importance component packets having greater influence on picture quality and selectively discard second importance component packets having less influence.
摘要翻译： H.261编码器输出编码视频数据以及模式选择信号和判断信号，以便丢弃或不丢弃分组。打包器接收来自H.261编码器的输出信号，并分别对输入的编码数据中的运动数据和DCT数据进行打包。网关通过参照分组丢弃判定信号判断包含DCT数据的分组是否被丢弃，以及网关所连接的网络的比特率。因此，网关可以以简单的结构根据网络的比特率来实现比特率转换。网关可以选择性地丢弃高频分量分组而不丢弃低频分量分组，或者不丢弃对图像质量影响较大的第一重要性分量分组，并选择性地丢弃具有较小影响的第二重要性分量分组。

10. 发明授权

US5841476A Coding apparatus for encoding motion picture 失效
标题翻译：用于编码运动图像的编码装置
公开(公告)号：US5841476A
公开(公告)日：1998-11-24
申请号：US608511
申请日：1996-02-28
申请人： Yasuhiro Takishima , Shigeyuki Sakazawa , Masahiro Wada
发明人： Yasuhiro Takishima , Shigeyuki Sakazawa , Masahiro Wada
IPC分类号： H04N7/26 , H04N7/50 , H04N7/36
CPC分类号： H04N19/177 , H04N19/105 , H04N19/112 , H04N19/114 , H04N19/137 , H04N19/56 , H04N19/61
摘要： A motion picture coding apparatus for searching a plurality of proposed coding modes and/or parameters, for selecting a suitable coding mode and/or a suitable parameter, and for encoding motion pictures using the selected coding mode and/or parameter. The apparatus includes a measuring part for measuring coding status during coding processes to provide at least one measured coding status, and a limiting part for adaptively limiting search range of the proposed coding modes and/or parameters in accordance with the at least one measured coding status.
摘要翻译：一种运动图像编码装置，用于搜索多个提出的编码模式和/或参数，用于选择合适的编码模式和/或适当的参数，以及使用所选择的编码模式和/或参数对运动图像进行编码。该装置包括：测量部分，用于在编码处理期间测量编码状态以提供至少一个测量编码状态;以及限制部分，用于根据所述至少一个测量编码状态自适应地限制所提出的编码模式和/或参数的搜索范围。

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