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公开(公告)号：US06295407B1
公开(公告)日：2001-09-25
申请号：US09630265
申请日：2000-08-01
IPC分类号： H04N5913
CPC分类号： H04N1/32149 , H04N5/913 , H04N5/9264 , H04N21/2541 , H04N21/4334 , H04N21/4627 , H04N21/835 , H04N21/8355 , H04N21/8358 , H04N2005/91321 , H04N2005/91328 , H04N2005/91335
摘要： A formatting apparatus authenticates an information signal prior to mass duplication of the signal by analyzing the signal to detect the presence or absence of a security signal therein, inserting a security signal into the information signal, and recording the modified signal only if no security signal was detected.
摘要翻译： 格式化装置通过分析信号来检测信号的大量复制之前对信息信号进行认证，以检测其中是否存在安全信号，将安全信号插入到信息信号中，并且仅在没有安全信号为 检测到。
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公开(公告)号：US5991499A
公开(公告)日：1999-11-23
申请号：US697794
申请日：1996-08-30
CPC分类号： H04N19/61 , H04N5/913 , H04N2005/91328
摘要： Unauthorized copying of a digital video program is prevented by designating a first block and a second block of data in a bit stream encoded by a fixed length code. A portion of the first block is selected as key data and inserted into the second block to indicate that the digital video program is a copy and to prevent illegal copying.
摘要翻译： 通过指定由固定长度码编码的比特流中的第一块和第二数据块来防止数字视频节目的非授权复制。 选择第一块的一部分作为关键数据并插入到第二块中以指示数字视频节目是副本并防止非法复制。
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公开(公告)号：US5703859A
公开(公告)日：1997-12-30
申请号：US705306
申请日：1996-08-29
CPC分类号： H04N1/32149 , H04N21/2541 , H04N21/4334 , H04N21/4627 , H04N21/835 , H04N21/8355 , H04N21/8358 , H04N5/913 , H04N2005/91321 , H04N2005/91328 , H04N2005/91335 , H04N5/9264
摘要： A formatting apparatus authenticates an information signal prior to mass duplication of the signal by analyzing the signal to detect the presence or absence of a security signal therein, inserting a security signal into the information signal, and recording the modified signal only if no security signal was detected.
摘要翻译： 格式化装置通过分析信号来检测信号的大量复制之前对信息信号进行认证，以检测其中是否存在安全信号，将安全信号插入到信息信号中，并且仅在没有安全信号为 检测到。
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公开(公告)号：US06266482B1
公开(公告)日：2001-07-24
申请号：US09431545
申请日：1999-10-29
IPC分类号： H04N591
CPC分类号： H04N19/61 , H04N5/913 , H04N2005/91328
摘要： Unauthorized copying of a digital video program is prevented by designating a first block and a second block of data in a bit stream encoded by a fixed length code. A portion of the first block is selected as key data and inserted into the second block to indicate that the digital video program is a copy and to prevent illegal copying.
摘要翻译： 通过指定由固定长度码编码的比特流中的第一块和第二数据块来防止数字视频节目的非授权复制。 选择第一块的一部分作为关键数据并插入到第二块中以指示数字视频节目是副本并防止非法复制。
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公开(公告)号：US6115533A
公开(公告)日：2000-09-05
申请号：US881820
申请日：1997-06-24
CPC分类号： H04N1/32149 , H04N21/2541 , H04N21/4334 , H04N21/4627 , H04N21/835 , H04N21/8355 , H04N21/8358 , H04N5/913 , H04N2005/91321 , H04N2005/91328 , H04N2005/91335 , H04N5/9264
摘要： A formatting apparatus authenticates an information signal prior to mass duplication of the signal by analyzing the signal to detect the presence or absence of a security signal therein, inserting a security signal into the information signal, and recording the modified signal only if no security signal was detected.
摘要翻译： 格式化装置通过分析信号来检测信号的大量复制之前对信息信号进行认证，以检测其中是否存在安全信号，将安全信号插入到信息信号中，并且仅在没有安全信号为 检测到。
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6.发明授权Method and apparatus for decoding MPEG-type data reproduced from a recording medium during a high-speed reproduction operation 失效用于在高速再现操作期间解码从记录介质再现的MPEG型数据的方法和装置
公开(公告)号：US5699474A
公开(公告)日：1997-12-16
申请号：US397116
申请日：1995-06-19
IPC分类号： H04N5/781 , H04N5/7826 , H04N5/783 , H04N5/85 , H04N5/926 , H04N9/804 , H04N19/00 , H04N19/102 , H04N19/114 , H04N19/12 , H04N19/126 , H04N19/134 , H04N19/137 , H04N19/139 , H04N19/152 , H04N19/159 , H04N19/196 , H04N19/42 , H04N19/423 , H04N19/46 , H04N19/463 , H04N19/503 , H04N19/51 , H04N19/517 , H04N19/577 , H04N19/61 , H04N19/625 , H04N19/65 , H04N19/70 , H04N19/85 , H04N19/89 , H04N19/91 , H04N19/93 , H04N5/92
CPC分类号： H04N5/85 , H04N19/00 , H04N19/174 , H04N19/423 , H04N19/503 , H04N19/587 , H04N19/61 , H04N19/90 , H04N5/783 , H04N5/9261 , H04N5/9262 , H04N5/9267 , H04N19/107 , H04N19/13 , H04N19/60 , H04N19/70 , H04N19/91 , H04N5/781 , H04N5/78263 , H04N9/8045 , H04N9/8047
摘要： Recording unit is operative so that, in the case of carrying out high speed reproduction, switch is switched by high speed reproduction control signal inputted from the external, and a signal read out from the recording unit is inputted to VLD and formatter. High speed reproduction control signal is inputted to recording unit, switch and counter. Recording unit reproduces and outputs predetermined data in accordance with high speed reproduction control signal. At VLD, variable length encoding of MPEG is released, and syntax analysis is carried out. Counter counts the number of frames to be transmitted. Moreover, counter outputs temporal.sub.-- reference in accordance with reproduction speed indicated by high speed reproduction control signal. Header converter rewrites temporal.sub.-- reference in picture header in accordance with temporal.sub.-- reference outputted from counter. From facts as described above, high speed reproduction of moving picture can be made.
摘要翻译： PCT No.PCT / JP94 / 01139S。 371日期：1995年6月19日 102（e）1995年6月19日PCT PCT 1994年7月12日PCT公布。 出版物WO95 / 02946 日期1995年1月26日记录单元操作，使得在进行高速再现的情况下，通过从外部输入的高速再现控制信号切换开关，并且从记录单元读出的信号被输入到VLD和 格式化 高速再现控制信号被输入到记录单元，开关和计数器。 记录单元根据高速再现控制信号再现和输出预定数据。 在VLD中，MPEG的可变长度编码被释放，并进行语法分析。 计数器计数要发送的帧数。 此外，根据由高速再现控制信号表示的再现速度，计数器输出时间参考。 标题转换器根据从计数器输出的时间参考，重写图片标题中的时间参考。 根据如上所述的事实，可以进行运动图像的高速再现。
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公开(公告)号：US5999225A
公开(公告)日：1999-12-07
申请号：US683684
申请日：1996-08-01
CPC分类号： H04N5/44508 , H04N21/23614 , H04N21/431 , H04N21/4348 , H04N21/4884 , H04N21/6547 , H04N21/8153
摘要： A method and apparatus for encoding signals so as to form a multiplexed signal and for decoding the same. The apparatus may include an encoding unit and a decoding unit. The encoding unit may include a device for encoding a dynamic image signal so as to form a video bit stream, a device for encoding superimposed data so as to form bit map data, a device for encoding the bit map data and coordinates of a plurality of regions so as to form a bit stream of each respective region, a device for encoding the bit stream of each of the regions and coordinates of a page layer so as to form a bit stream of a page layer. The page layer specifies information indicative of start and end positions of a plurality of regions such that each of the regions are within a display area, and a device for multiplexing the bit stream of the page layer and the video bit stream. The decoding unit may include a device for separating the multiplexed bit stream into the video bit stream and the superimposed data bit stream, a device for decoding the video bit stream so as to form the dynamic image signal, a device receiving the superimposed data bit stream for obtaining coordinates of a page layer, coordinates of a plurality of regions and bit map data therefrom and for decoding the bit map data, a device for selecting one of the decoded bit map data and the dynamic image signal, and a control device.
摘要翻译： 一种用于对信号进行编码以形成复用信号并对其进行解码的方法和装置。 该装置可以包括编码单元和解码单元。 编码单元可以包括用于编码动态图像信号以形成视频比特流的装置，用于对叠加数据进行编码以便形成位图数据的装置，用于对位图数据进行编码的装置和多个 区域，以便形成每个相应区域的比特流，用于编码每个区域的比特流和页面层的坐标的装置，以便形成页面层的比特流。 页面层指定指示多个区域的开始和结束位置的信息，使得每个区域在显示区域内，以及用于复用页面层的比特流和视频比特流的设备。 解码单元可以包括用于将多路复用比特流分离成视频比特流和叠加数据比特流的装置，用于解码视频比特流以形成动态图像信号的装置，接收叠加数据比特流的装置 用于从页面层获得坐标，多个区域的坐标和位图数据，并且用于对位图数据进行解码，用于选择解码位图数据和动态图像信号之一的设备以及控制设备。
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8.发明授权High efficiency encoding and decoding of picture signals and recording medium containing same 失效图像信号的高效率编码和解码以及包含其的记录介质
公开(公告)号：US5666461A
公开(公告)日：1997-09-09
申请号：US454598
申请日：1995-05-30
申请人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
发明人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
CPC分类号： H04N19/00 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/85 , H04N19/98 , H04N19/70
摘要： An encoder considers a frame representing a picture as comprised of areas. For each area, the encoder decides which of frame-based or field-based orthogonal transformation will be most efficient at reducing spatial redundancy in that area. For each area, the encoder decides which of frame-based or field-based predictive encoding will be most efficient at reducing temporal redundancy in that area. The encoder encodes each area of the picture frame using the most efficient orthogonal transformation technique and using the most efficient predictive encoding technique to produce an encoded signal. A decoder decodes the encoded signal. The encoded signal is recorded on a recording medium, transmitted over a transmission channel, or broadcast.
摘要翻译： 编码器将表示图像的帧视为由区域组成。 对于每个区域，编码器决定哪个基于帧的或基于场的正交变换将最有效地减少该区域中的空间冗余。 对于每个区域，编码器决定哪个基于帧的或基于场的预测编码在减少该区域的时间冗余方面将是最有效的。 编码器使用最有效的正交变换技术对图像帧的每个区域进行编码，并使用最有效的预测编码技术来产生编码信号。 解码器解码编码信号。 编码信号被记录在通过传输信道或广播传输的记录介质上。
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公开(公告)号：US06363212B1
公开(公告)日：2002-03-26
申请号：US09363723
申请日：1999-07-29
IPC分类号： H04N5928
CPC分类号： H04N19/89 , G06T9/007 , G11B27/005 , H04N7/52 , H04N21/4325 , H04N21/4334 , H04N21/4341 , H04N21/8455
摘要： Digital video data encoder and decoder operate to enable the low and high speed reproduction of variable rate encoded digital video data by reproducing and decoding intraframe encoded frames that are identified by previously reproduced intraframe encoded frames. In the encoder, digital video data is variable rate encoded, for example, intraframe and interframe encoded, entry points (i.e., beginning positions) of selected encoded video data are identified and which represent video frames that occur at predetermined intervals of time (e.g., 1, 2 and 4 seconds) in the video picture. Entry point data that identify these positions are generated and added to the encoded video data before the video data is recorded on a record medium. When the encoded data is reproduced from the record medium, the entry point data is extracted therefrom and stored, and a successive intraframe encoded frame identified by the extracted entry point data is reproduced and decoded. The invention further provides for a record medium having thereon the encoded digital video data, and also provides for an encoder and corresponding decoder which encode and decode, respectively, digital still image and audio data in which entry points refer to each of the still images and also to particular intervals of time of the audio data.
摘要翻译： 数字视频数据编码器和解码器通过再现和解码由先前再现的帧内编码帧识别的帧内编码帧来实现可变速率编码数字视频数据的低速和高速再现。 在编码器中，数字视频数据是可变速率编码的，例如，帧内和帧间编码，所选编码视频数据的入口点（即起始位置）被识别，并且代表以预定时间间隔发生的视频帧（例如， 1，2和4秒）。 在将视频数据记录在记录介质上之前，生成识别这些位置的入口点数据并添加到编码视频数据。 当从记录介质再现编码数据时，从其中提取入口点数据并存储，并且再现并解码由提取的入口点数据识别的连续帧内编码帧。 本发明还提供了一种在其上具有编码的数字视频数据的记录介质，并且还提供编码器和对应的解码器，分别编码和解码数字静态图像和音频数据，其中入口点涉及每个静止图像， 也是音频数据的特定时间间隔。
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10.发明授权High efficiency encoding and decoding of picture signals and recording medium containing same 失效图像信号的高效率编码和解码以及包含其的记录介质
公开(公告)号：US6101313A
公开(公告)日：2000-08-08
申请号：US453279
申请日：1995-05-30
申请人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
发明人： Katsuji Igarashi , Jun Yonemitsu , Yoichi Yagasaki , Yasushi Fujinami , Tomoyuki Sato , Motoki Kato , Teruhiko Suzuki
CPC分类号： H04N19/00 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/85 , H04N19/98 , H04N19/70
摘要： An encoder considers a frame representing a picture as comprised of areas. For each area, the encoder decides which of frame-based or field-based orthogonal transformation will be most efficient at reducing spatial redundancy in that area. For each area, the encoder decides which of frame-based or field-based predictive encoding will be most efficient at reducing temporal redundancy in that area. The encoder encodes each area of the picture frame using the most efficient orthogonal transformation technique and using the most efficient predictive encoding technique to produce an encoded signal. A decoder decodes the encoded signal. The encoded signal is recorded on a recording medium, transmitted over a transmission channel, or broadcast.
摘要翻译： 编码器将表示图像的帧视为由区域组成。 对于每个区域，编码器决定哪个基于帧的或基于场的正交变换将最有效地减少该区域中的空间冗余。 对于每个区域，编码器决定哪个基于帧的或基于场的预测编码在减少该区域的时间冗余方面将是最有效的。 编码器使用最有效的正交变换技术对图像帧的每个区域进行编码，并使用最有效的预测编码技术来产生编码信号。 解码器解码编码信号。 编码信号被记录在通过传输信道或广播传输的记录介质上。
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