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1. 发明授权

US5699474A Method and apparatus for decoding MPEG-type data reproduced from a recording medium during a high-speed reproduction operation 失效
标题翻译：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
申请人： Teruhiko Suzuki , Katsumi Tahara , Yoichi Yagasaki , Yasushi Fujinami , Jun Yonemitsu
发明人： Teruhiko Suzuki , Katsumi Tahara , Yoichi Yagasaki , Yasushi Fujinami , Jun Yonemitsu
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。

2. 发明授权

US5805225A Method and apparatus for variable resolution video picture coding/decoding 失效
标题翻译：用于可变分辨率视频图像编码/解码的方法和装置
公开(公告)号：US5805225A
公开(公告)日：1998-09-08
申请号：US706957
申请日：1996-09-03
申请人： Katsumi Tahara , Yoichi Yagasaki , Jun Yonemitsu
发明人： Katsumi Tahara , Yoichi Yagasaki , Jun Yonemitsu
IPC分类号： G06T9/00 , H04N7/26 , H04N7/46 , H04N7/50 , H04N7/24
CPC分类号： H04N19/577 , H04N19/61 , H04N19/30
摘要： A picture series is encoded so that a first type of decoder having only one frame memory and incapable of bi-directional decoding can decode the encoded bitstream, and a second type of decoder having multiple frame memories and capable of bi-directional decoding can decode the encoded bitstream to produce a higher quality decoded picture series. The encoded bitstream comprises three parallel channels of encoded picture data. The first channel includes every other picture and header information common to the second and third channels. The second channel includes the pictures not represented in the first channel and encoded by one of forward and backward predictive coding. The third channel includes the pictures not represented in the first channel and encoded by bi-directional predictive coding. The first type of decoder uses the first and second channels, while the second type of decoder uses the first and third channels.
摘要翻译：编码图像序列，使得仅具有一个帧存储器并且不能进行双向解码的第一类型的解码器可以对编码的比特流进行解码，并且具有多个帧存储器并且能够进行双向解码的第二类型的解码器可以对编码比特流以产生更高质量的解码图像序列。编码比特流包括编码图像数据的三个并行通道。第一通道包括第二和第三通道共同的其他图像和标题信息。第二信道包括在第一信道中未表示并由前向和后向预测编码之一编码的图像。第三信道包括在第一信道中未表示并由双向预测编码编码的图像。第一类型的解码器使用第一和第二信道，而第二类型的解码器使用第一和第三信道。

3. 发明授权

US5543932A Digital video signal recording apparatus and digital video signal reproducing apparatus 失效
标题翻译：数字视频信号记录装置和数字视频信号再现装置
公开(公告)号：US5543932A
公开(公告)日：1996-08-06
申请号：US248176
申请日：1994-05-24
申请人： Ching-Fang Chang , Naofumi Yanagihara , Jun Yonemitsu , Katsumi Tahara , Yoichi Yagasaki , Teruhiko Suzuki
发明人： Ching-Fang Chang , Naofumi Yanagihara , Jun Yonemitsu , Katsumi Tahara , Yoichi Yagasaki , Teruhiko Suzuki
IPC分类号： H04N5/7826 , H04N5/783 , H04N9/804 , H04N9/89 , H04N5/926 , H04N5/937
CPC分类号： H04N9/8042 , H04N5/78266 , H04N5/783 , H04N9/89
摘要： According to the present invention, when an ATV signal is recorded by a digital VCR in the conventional television signal record mode, variable speed reproduction data composed of HP data containing I frame is redundantly recorded in a surplus record area that is formed by the difference between the transmission rate of the ATV signal and the transmission rate of the conventional compressed digital video signal. When variable speed reproduction is performed, the variable speed reproduction data is reproduced.
摘要翻译：根据本发明，当在现有的电视信号记录模式中通过数字VCR记录ATV信号时，由包含I帧的HP数据构成的变速再现数据被冗余地记录在由 ATV信号的传输速率和传统压缩数字视频信号的传输速率。当执行变速再现时，再现变速再现数据。

4. 发明授权

US5504530A Apparatus and method for coding and decoding image signals 失效
标题翻译：图像信号编码和解码的装置和方法
公开(公告)号：US5504530A
公开(公告)日：1996-04-02
申请号：US83057
申请日：1993-06-25
申请人： Nobuhisa Obikane , Katsumi Tahara , Yoichi Yagasaki , Jun Yonemitsu , Teruhiko Suzuki
发明人： Nobuhisa Obikane , Katsumi Tahara , Yoichi Yagasaki , Jun Yonemitsu , Teruhiko Suzuki
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30 , H04N7/36 , H04N7/46 , H04N7/50
CPC分类号： H04N19/577 , H04N19/107 , H04N19/112 , H04N19/122 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/152 , H04N19/174 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/59 , H04N19/61
摘要： A compression-coded high definition television signal is decoded and converted to a standard NTSC signal without loss of interlacing so that the resulting picture exhibits smooth motion. The compression-coding of the HDTV signal includes DCT processing to produce an 8.times.8 block of coefficient data. Upon decoding, the upper left quadrant of the coefficient data array is used to form a 4.times.4 subblock of coefficient data but the last row of elements of the subblock is replaced by corresponding elements of the eighth row of the 8.times.8 block of coefficient data.
摘要翻译：压缩编码的高分辨率电视信号被解码并转换成标准NTSC信号，而不会失去隔行扫描，使得所得到的图像呈现平滑的运动。 HDTV信号的压缩编码包括产生8×8系数数据块的DCT处理。在解码时，系数数据阵列的左上象限用于形成系数数据的4×4子块，但子块的最后一行元素由系数数据的8×8块的第8行的相应元素代替。

5. 再颁专利

USRE37222E1 Video signal transmitting system 失效
标题翻译：视频信号传输系统
公开(公告)号：USRE37222E1
公开(公告)日：2001-06-12
申请号：US08277143
申请日：1994-07-19
申请人： Jun Yonemitsu , Yoichi Yagasaki , Katsuji Igarashi , Mark Veltman
发明人： Jun Yonemitsu , Yoichi Yagasaki , Katsuji Igarashi , Mark Veltman
IPC分类号： H04N750
CPC分类号： H04N7/52 , H04N19/50 , H04N19/51 , H04N19/577 , H04N19/61
摘要： Video signal transmitting system in which digital video signal are divided into groups of predetermined frames. Digital video signals of at least one frame are intraframe coded and then transmitted. Remaining digital video signals are interframe coded with reference to the intraframe coded digital video signals, and intraframe coded digital video signals of a subsequent group of frames and are then transmitted. A motion vector from a predetermined reference frame is detected. Video signals are interframe coded by the motion vector to transmit the video signals. A motion vector from a first frame which is a plurality of frames away from the reference frame is converted to a motion vector for a one frame interval between the reference frame and the first frame. The motion vector is optimized, and is then transmitted.
摘要翻译：视频信号发送系统，其中数字视频信号被分成预定帧组。至少一帧的数字视频信号被帧内编码，然后发送。剩余的数字视频信号参照帧内编码的数字视频信号和随后的一组帧的帧内编码的数字视频信号进行帧间编码，然后被发送。检测来自预定参考帧的运动矢量。视频信号由运动矢量帧间编码以发送视频信号。来自作为离基准帧的多个帧的第一帧的运动矢量被转换为参考帧和第一帧之间的一帧间隔的运动矢量。优化运动矢量，然后传输。

6. 发明授权

US06226327B1 Video coding method and apparatus which select between frame-based and field-based predictive modes 失效
标题翻译：在基于帧和基于场的预测模式之间进行选择的视频编码方法和装置
公开(公告)号：US06226327B1
公开(公告)日：2001-05-01
申请号：US08084642
申请日：1993-06-29
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
IPC分类号： H04N736
CPC分类号： H04N19/00 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/70 , H04N19/85 , H04N19/98
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。

7. 发明授权

US5946040A Moving picture coding/decoding method and apparatus for decoders of various processing capability 失效
标题翻译：用于具有各种处理能力的解码器的运动图像编码/解码方法和装置
公开(公告)号：US5946040A
公开(公告)日：1999-08-31
申请号：US341550
申请日：1995-02-08
申请人： Motoki Kato , Yoichi Yagasaki , Jun Yonemitsu
发明人： Motoki Kato , Yoichi Yagasaki , Jun Yonemitsu
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50 , H04N7/54
CPC分类号： H04N7/54 , H04N19/156 , H04N19/17 , H04N19/46 , H04N19/51 , H04N19/55 , H04N19/61 , H04N19/30
摘要： A moving picture coding apparatus for coding a moving picture and a moving picture decoding apparatus for decoding a coded moving picture are provided. The moving picture coding apparatus is operative to divide a picture signal of a picture frame of N pixels.times.M lines (horizontal N pixels, vertical M lines) to be coded between a first picture portion serving as the inside picture portion having picture frame of N.sub.1 pixels.times.M.sub.1 lines (N.sub.1 .ltoreq.N, M.sub.1 .ltoreq.M) and a second picture portion serving as picture portion outside the first picture portion to divide the first and second picture portions in independent predetermined divisional units comprised of a plurality of pixels, and to add peculiar discrimination codes to headers of divisional units in transmitting coded information of predetermined divisional units belonging to the second picture portion.
摘要翻译： PCT No.PCT / JP94 / 00485 Sec。 371日期1995年2月8日 102（e）日期1995年2月8日PCT 1994年3月25日PCT公布。出版物WO94 / 22268 日期1994年9月29日提供了一种用于编码运动图像的运动图像编码装置和用于对编码运动图像进行解码的运动图像解码装置。运动图像编码装置用于将N个像素×M行（水平N像素，垂直M行）的图像帧的图像信号分割为用作具有N1个像素×M1行的图像帧的内部图像部分的第一图像部分（N1

8. 发明授权

US5136376A Method of coding video signals and transmission system thereof 失效
标题翻译：编码视频信号的方法及其传输系统
公开(公告)号：US5136376A
公开(公告)日：1992-08-04
申请号：US596250
申请日：1990-10-12
申请人： Yoichi Yagasaki , Jun Yonemitsu
发明人： Yoichi Yagasaki , Jun Yonemitsu
IPC分类号： H04N19/50 , G06T9/00 , H04N9/804 , H04N19/115 , H04N19/126 , H04N19/134 , H04N19/149 , H04N19/176 , H04N19/192 , H04N19/196 , H04N19/423 , H04N19/503 , H04N19/593 , H04N19/91
CPC分类号： H04N9/8042 , H04N19/115 , H04N19/126 , H04N19/14 , H04N19/149 , H04N19/172 , H04N19/61 , H04N19/124 , H04N19/146 , H04N19/152
摘要： In a video signal coding method for generating transmission data, a digital video signal is quantized by a quantization step which is controlled on the basis of significant picture information to be transmitted. The significant picture information is, for example, the quantity of information in a main region and in a sub region, the quantity of picture information to be coded, the picture motion in coded regions, the amount of variations in picture information between regions to be coded, or the components of spatial frequency with respect to regions to be coded. By reason of such control of the quantization step, deterioration of picture quality of the transmission data can be avoided, while the quantity of transmitted data is reduced.

9. 发明授权

US06363212B1 Apparatus and method for encoding and decoding digital video data 有权
标题翻译：用于对数字视频数据进行编码和解码的装置和方法
公开(公告)号：US06363212B1
公开(公告)日：2002-03-26
申请号：US09363723
申请日：1999-07-29
申请人： Yasushi Fujinami , Jun Yonemitsu , Makoto Kawamura , Yoichi Yagasaki
发明人： Yasushi Fujinami , Jun Yonemitsu , Makoto Kawamura , Yoichi Yagasaki
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。

10. 发明授权

US6101313A High efficiency encoding and decoding of picture signals and recording medium containing same 失效
标题翻译：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
IPC分类号： G06T9/00 , H04N7/26 , H04N7/36 , H04N7/46 , H04N7/50 , H04N5/92 , H04N5/917
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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