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1. 发明授权

US6111987A Picture data compression coding device and method thereof 失效
标题翻译：图像数据压缩编码装置及其方法
公开(公告)号：US6111987A
公开(公告)日：2000-08-29
申请号：US947464
申请日：1997-10-09
申请人： Mikio Watanabe , Kenji Ito , Kenji Moronaga
发明人： Mikio Watanabe , Kenji Ito , Kenji Moronaga
IPC分类号： H03M7/30 , G06T9/00 , H04N1/41 , H04N1/415 , H04N19/102 , H04N19/115 , H04N19/126 , H04N19/132 , H04N19/134 , H04N19/136 , H04N19/14 , H04N19/146 , H04N19/149 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/189 , H04N19/194 , H04N19/196 , H04N19/423 , H04N19/60 , H04N19/625 , H04N19/85 , H04N19/91 , H04N19/93 , G06K9/46
CPC分类号： G06T9/007
摘要： A device for coding picture data by compression, and a method thereof. By preprocessing, the device calculates a picture activity of one frame of picture data. A quantizing table circuit selects a particular quantizing step matching the picture activity and sets it in a quantizing circuit 32. On a first path, one frame of picture data is fed to a discrete cosine transform (DCT) circuit to be thereby subjected to orthogonal transform. The quantizing circuit sequentially quantizes DC components, low frequency components and high frequency components of the resulting output of the DCT circuit in ascending order of frequency block by block according to a quantizing step set therein. The picture data from the quantizing circuit are coded by Huffman coding while a code counter counts the coded data. The quantizing step set in the quantizing circuit is updated on the basis of the amount of coded data and a target amount of codes. On a second path, the same one frame of picture data is again fed to the DCT circuit to undergo orthogonal transform and compression, as on the first path. The coded picture data are sent to a memory card or similar picture data storing means. A bit distributing circuit produces a bit distribution value block by block. When the output count of the code counter associated with one block reaches the bit distribution value, the DCT circuit, quantizing circuit and Huffman coding circuit are disenabled while an EOB (End Of Block) code is added to the end of the block of coded picture data.
摘要翻译：用于通过压缩对图像数据进行编码的装置及其方法。通过预处理，设备计算一帧图像数据的图像活动。量化表电路选择与图像活动相匹配的特定量化步骤并将其设置在量化电路32中。在第一路径上，将一帧图像数据馈送到离散余弦变换（DCT）电路，从而进行正交变换。量化电路根据其中设定的量化步骤，按照频率逐个按顺序按顺序量化DCT电路的所得输出的DC分量，低频分量和高频分量。来自量化电路的图像数据通过霍夫曼编码进行编码，而代码计数器对编码数据进行计数。基于编码数据量和目标代码量，更新量化电路中设置的量化步骤。在第二路径上，如同第一路径那样，将相同的一帧图像数据再次馈送到DCT电路进行正交变换和压缩。编码图像数据被发送到存储卡或类似的图像数据存储装置。位分配电路逐块产生位分配值。当与一个块相关联的代码计数器的输出计数达到位分配值时，DCT电路，量化电路和霍夫曼编码电路被禁用，而将EOB（块结束）码添加到编码图像块的末尾数据。

2. 发明授权

US5126857A Device for coding a picture signal by compression 失效
标题翻译：用于通过压缩对图像信号进行编码的装置
公开(公告)号：US5126857A
公开(公告)日：1992-06-30
申请号：US529635
申请日：1990-05-29
申请人： Mikio Watanabe , Kenji Ito , Kenji Moronaga
发明人： Mikio Watanabe , Kenji Ito , Kenji Moronaga
IPC分类号： H04N1/41 , G06T9/00 , H04N5/926 , H04N9/804 , H04N11/04
CPC分类号： H04N5/9264 , H04N11/042 , H04N19/115 , H04N19/14 , H04N19/149 , H04N19/176 , H04N19/18 , H04N19/60 , H04N9/8047 , H04N19/146
摘要： A device for coding color picture data by compression maintains compressed data in a predetermined length and prevents the amount of DC signal component data to be allocated from becoming short. A luminance signal and chrominance signals Cr and Cb are compressed independently of each other and recorded as discrete DC components and AC components. When the amount of data of DC components of the chrominance signal Cr or Cb is greater than the total amount of data assigned to the signal Cr or Cb, the amount of data assigned to the signal Cr or Cb is increased to equal the amount of data of DC components of the signal Cr or Cb while the shortage is subtracted from the allocation of AC component data of the luminance signal Y. This insures the allocation of a sufficient amount of data to the coded data of DC components at all times.
摘要翻译：用于通过压缩来对彩色图像数据进行编码的装置维持预定长度的压缩数据，并且防止DC信号分量数据量的分配变短。亮度信号和色度信号Cr和Cb彼此独立地被压缩并被记录为离散DC分量和AC分量。当色度信号Cr或Cb的DC分量的数据量大于分配给信号Cr或Cb的数据的总量时，分配给信号Cr或Cb的数据量增加到等于数据量的信号Cr或Cb的DC分量，同时从亮度信号Y的AC分量数据的分配中减去不足。这保证了对DC分量的编码数据始终分配足够的数据。

3. 发明授权

US5732156A Picture data compression coding device and method thereof 失效
标题翻译：图像数据压缩编码装置及其方法
公开(公告)号：US5732156A
公开(公告)日：1998-03-24
申请号：US396894
申请日：1995-03-01
申请人： Mikio Watanabe , Kenji Ito , Kenji Moronaga
发明人： Mikio Watanabe , Kenji Ito , Kenji Moronaga
IPC分类号： H03M7/30 , G06T9/00 , H04N1/41 , H04N1/415 , H04N19/102 , H04N19/115 , H04N19/126 , H04N19/132 , H04N19/134 , H04N19/136 , H04N19/14 , H04N19/146 , H04N19/149 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/189 , H04N19/194 , H04N19/196 , H04N19/423 , H04N19/60 , H04N19/625 , H04N19/85 , H04N19/91 , H04N19/93 , G06K9/46
CPC分类号： G06T9/007
摘要： A device for coding picture data by compression, and a method thereof are provided. By preprocessing, the device calculates a picture activity of one frame of picture data. A quantizing table circuit selects a particular quantizing step matching the picture activity and sets the picture activity in a quantizing circuit. On a first path, one frame of picture data is fed to a discrete cosine transform (DCT) circuit to be thereby subjected to orthogonal transform. The quantizing circuit sequentially quantizes DC components, low frequency components and high frequency components of the resulting output of the DCT circuit in ascending order of frequency block by block according to a quantizing step set therein. The picture data from the quantizing circuit are coded by Huffman coding while a code counter counts the coded data. The quantizing step set in the quantizing circuit is updated on the basis of the amount of coded data and a target amount of codes. On a second path, the same one frame of picture data is again fed to the DCT circuit to undergo orthogonal transform and compression, as on the first path. The coded picture data are sent to a memory card or similar picture data storing medium. A bit distributing circuit produces a bit distribution value block by block. When the output count of the code counter associated with one block reaches the bit distribution value, the DCT circuit, quantizing circuit and Huffman coding circuit are disenabled while an EOB (End of Block) code is added to the end of the block of coded picture data.
摘要翻译：提供了一种通过压缩对图像数据进行编码的装置及其方法。通过预处理，设备计算一帧图像数据的图像活动。量化表电路选择与图像活动相匹配的特定量化步骤，并设置量化电路中的图像活动。在第一路径上，将一帧图像数据馈送到离散余弦变换（DCT）电路，从而进行正交变换。量化电路根据其中设定的量化步骤，按照频率逐个按顺序按顺序量化DCT电路的所得输出的DC分量，低频分量和高频分量。来自量化电路的图像数据通过霍夫曼编码进行编码，而代码计数器对编码数据进行计数。基于编码数据量和目标代码量，更新量化电路中设置的量化步骤。在第二路径上，如同第一路径那样，将相同的一帧图像数据再次馈送到DCT电路进行正交变换和压缩。编码图像数据被发送到存储卡或类似的图像数据存储介质。位分配电路逐块产生位分配值。当与一个块相关联的代码计数器的输出计数达到位分配值时，DCT电路，量化电路和霍夫曼编码电路被禁用，而将EOB（块结束）码添加到编码图像块的末尾数据。

4. 发明授权

US5729633A Picture data compression coding device and method thereof 失效
公开(公告)号：US5729633A
公开(公告)日：1998-03-17
申请号：US659882
申请日：1996-06-07
申请人： Mikio Watanabe , Kenji Ito , Kenji Moronaga
发明人： Mikio Watanabe , Kenji Ito , Kenji Moronaga
IPC分类号： H03M7/30 , G06T9/00 , H04N1/41 , H04N1/415 , H04N19/102 , H04N19/115 , H04N19/126 , H04N19/132 , H04N19/134 , H04N19/136 , H04N19/14 , H04N19/146 , H04N19/149 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/189 , H04N19/194 , H04N19/196 , H04N19/423 , H04N19/60 , H04N19/625 , H04N19/85 , H04N19/91 , H04N19/93 , G06K9/36
CPC分类号： G06T9/007
摘要： A device for coding picture data by compression, and a method thereof. By preprocessing, the device calculates a picture activity of one frame of picture data. A quantizing table circuit selects a particular quantizing step matching the picture activity and sets it in a quantizing circuit 32. On a first path, one frame of picture data is fed to a discrete cosine transform (DCT) circuit to be thereby subjected to orthogonal transform. The quantizing circuit sequentially quantizes DC components, low frequency components and high frequency components of the resulting output of the DCT circuit in ascending order of frequency block by block according to a quantizing step set therein. The picture data from the quantizing circuit are coded by Huffman coding while a code counter counts the coded data. The quantizing step set in the quantizing circuit is updated on the basis of the amount of coded data and a target amount of codes. On a second path, the same one frame of picture data is again fed to the DCT circuit to undergo orthogonal transform and compression, as on the first path. The coded picture data are sent to a memory card or similar picture data storing means. A bit distributing circuit produces a bit distribution value block by block. When the output count of the code counter associated with one block reaches the bit distribution value, the DCT circuit, quantizing circuit and Huffman coding circuit are disenabled while an EOB (End Of Block) code is added to the end of the block of coded picture data.

5. 发明授权

US5184229A Compression coding device and expansion decoding device for picture signal 失效
标题翻译：用于图像信号的压缩编码装置和扩展解码装置
公开(公告)号：US5184229A
公开(公告)日：1993-02-02
申请号：US444701
申请日：1989-12-01
申请人： Osamu Saito , Kenji Ito , Kenji Moronaga , Mikio Watanabe
发明人： Osamu Saito , Kenji Ito , Kenji Moronaga , Mikio Watanabe
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30
CPC分类号： H04N19/184 , H04N19/126 , H04N19/14 , H04N19/176 , H04N19/18 , H04N19/60 , H04N19/124 , H04N19/13 , H04N19/146 , H04N19/91
摘要： A device for coding a picture signal by compression produces, when detected that the amplitude of data which has undergone two-dimensional orthogonal transform and then normalized has overflown, data specifying the normalized data in addition to coded data of the normalized data. A decoding device, therefore, is capable of accurately decoding original picture data despite the overflow. When a block of picture data lies in a predetermined range which occurs with relatively low probability, the picture data is transformed into coded data which includes a predetermined code. When the block of picture data does not lie in such a range, the picture data is converted into Huffman-coded data. This reduces the required capacity of a look-up table for coding.
摘要翻译：当检测到已经经过二维正交变换然后归一化的数据的幅度已经溢出时，用于通过压缩对图像信号进行编码的装置产生除了归一化数据的编码数据之外指定归一化数据的数据。因此，解码装置能够精确地解码原始图像数据，而不管溢出。当图像数据块位于以相对较低概率发生的预定范围内时，图像数据被变换成包括预定码的编码数据。当图像数据块不在这样的范围内时，图像数据被转换成霍夫曼编码的数据。这减少了编码查找表的所需容量。

6. 发明授权

US5101280A Device for coding a picture signal by compression 失效
标题翻译：用于通过压缩编码图像信号的装置
公开(公告)号：US5101280A
公开(公告)日：1992-03-31
申请号：US524389
申请日：1990-05-17
申请人： Kenji Moronaga , Kenji Ito , Mikio Watanabe
发明人： Kenji Moronaga , Kenji Ito , Mikio Watanabe
IPC分类号： H04N1/415 , G06T9/00
CPC分类号： H04N19/18 , H04N19/126 , H04N19/14 , H04N19/149 , H04N19/176 , H04N19/60 , H04N19/124 , H04N19/146 , H04N19/152
摘要： A picture signal compression coding device is disclosed which divides digital picture data constituting a single picture into a plurality of blocks and codes the picture data block by block by two-dimensional orthogonal transformation. An orthogonal transforming section transforms the digital picture data divided into the plurality of blocks by two-dimensional orthogonal transformation. A normalizing section normalizes the transformed data, while a coding section codes the normalized data. A block activity calculating section calculates an activity of the picture data block by block. An activity summing section sums the block-by-block activities to produce a total activity. A coded data distributing section calculates an amount of coded data to be distributed to each of the blocks on the basis of the ratio of the block-by-block activity to the total activity. A coded output control section limits the amount of coded data to be distributed to each of the blocks from the coding section in response to an output of the coded data distributing section. The block activity calculating section has a subdividing section for subdividing each of the blocks of picture data into a plurality of subblocks, a subblock activity calculating section for calculating the activity of the picture data subblock by subblock, and a difference calculating section for determining a difference between nearby ones of the subblocks with respect to the mean value of subblock-by-subblock picture data.
摘要翻译：公开了一种图像信号压缩编码装置，其将构成单个图像的数字图像数据分成多个块，并通过二维正交变换逐块地对图像数据块进行编码。正交变换部通过二维正交变换来变换分割为多个块的数字图像数据。规范化部分归一化变换后的数据，而编码部分对归一化数据进行编码。块活动计算部分逐块地计算图像数据块的活动。活动总结部分将逐块活动相加以产生总体活动。编码数据分配部分根据逐块活动与总活动的比例来计算要分配给每个块的编码数据量。编码输出控制部分响应于编码数据分配部分的输出，将编码数据的数量从编码部分限制到每个块。块活动性计算部分具有用于将图像数据块中的每一个块细分为多个子块的细分部分，用于通过子块计算图像数据子块的活动度的子块活动计算部分和用于确定差异的差分计算部分在子块之间的子块相对于子块子块图像数据的平均值之间。

7. 发明授权

US5682202A Apparatus for recording/reproducing video data in a memory card on a cluster basis 失效
标题翻译：用于以集群为基础在存储卡中记录/再现视频数据的装置
公开(公告)号：US5682202A
公开(公告)日：1997-10-28
申请号：US200573
申请日：1994-02-22
申请人： Mikio Watanabe , Kenji Moronaga
发明人： Mikio Watanabe , Kenji Moronaga
IPC分类号： H04N1/21 , H04N5/77 , H04N5/907 , H04N5/926 , H04N5/781
CPC分类号： H04N1/2129 , H04N1/2112 , H04N1/2158 , H04N5/907 , H04N2101/00 , H04N2201/214 , H04N5/772 , H04N5/9264
摘要： A picture recording apparatus includes a first storage having storing units, or clusters, each of which has a predetermined capacity for accommodating video data, and thereby writing video data in the first storage on a cluster basis. An inputting section receives video data to be stored in the first storage. A second storage stores in a predetermined order address data each designating, from among the clusters of the first storage, a particular unoccupied cluster. A controller searches, before writing video data in the first storage, for unoccupied clusters and writes in the second storage first address data which designate clusters necessary for accommodating the video data. A data amount determining section determines the amount of video data outputted by the inputting section and outputs, when the amount of video data matches a single cluster, a first signal for commanding the writing of the video data to the next cluster and a second signal for inhibiting the outputting operation of the inputting section. An address generating section is responsive to the first signal for reading address data representative of the next storing unit out of the second storage, generates a real address on the basis of the address data, and feeds the real address to the first storage. A selecting section selects either one of the output signals of the address generating section and inputting section and selectively feeds either one of the selected output signals and the address data outputted by the controller to the first storage.
摘要翻译：图像记录装置包括具有存储单元或簇的第一存储器，每个存储单元具有用于容纳视频数据的预定容量，从而以集群为基础在第一存储器中写入视频数据。输入部分接收要存储在第一存储器中的视频数据。第二存储器以预定顺序地址存储每个从第一存储器的簇中指定特定未占用簇的数据。在第一存储器中写入视频数据之前，控制器搜索未被占用的簇并且在指定用于容纳视频数据所需的簇的第二存储器第一地址数据中写入。数据量确定部分确定由输入部分输出的视频数据的量，并且当视频数据量与单个簇匹配时，输出用于命令将视频数据写入下一个簇的第一信号和用于禁止输入部的输出动作。地址产生部分响应于第一信号用于从第二存储器读出表示下一个存储单元的地址数据，根据地址数据产生一个实际地址，并将该实际地址提供给第一个存储器。选择部分选择地址生成部分和输入部分的输出信号中的一个，并且选择性地将所选择的输出信号中的一个和由控制器输出的地址数据馈送到第一存储器。

8. 发明授权

US5170264A Compression coding device and expansion decoding device for a picture signal 失效
标题翻译：用于图像信号的压缩编码装置和扩展解码装置
公开(公告)号：US5170264A
公开(公告)日：1992-12-08
申请号：US444692
申请日：1989-12-01
申请人： Osamu Saito , Mikio Watanabe , Kenji Moronaga
发明人： Osamu Saito , Mikio Watanabe , Kenji Moronaga
IPC分类号： H04N5/926 , H04N7/26 , H04N7/30
CPC分类号： H04N5/9264 , H04N19/126 , H04N19/14 , H04N19/154 , H04N19/176 , H04N19/44 , H04N19/60 , H04N19/124 , H04N19/146 , H04N19/149 , H04N19/15
摘要： A picture data compression coding device sets a normalizing coefficient which matches a block of picture data and normalizes the picture data by the normalizing coefficient, whereby an adequate compression ratio is selected on a block-by-block basis. The coding device sets a normalizing coefficient in response to the sum of activities of individual blocks and normalizes picture data by the normalizing coefficient, thereby maintaining the amount of coded data constant at all times. Further, the coding device normalizes picture data by multiplying them by a reciprocal of the normalizing coefficient so as to eliminate the need for a divider. A decoding device decodes the data having been coded by the coding device.
摘要翻译：图像数据压缩编码装置设置与图像数据块匹配的归一化系数，并通过归一化系数对图像数据进行归一化，从而在逐块的基础上选择适当的压缩比。编码装置响应于各个块的活动总和设置归一化系数，并通过归一化系数对图像数据进行归一化，从而始终保持编码数据的数量恒定。此外，编码装置通过将图像数据乘以归一化系数的倒数来归一化图像数据，以消除对分频器的需要。解码装置对由编码装置编码的数据进行解码。

9. 发明授权

US5276841A Audio/video data reproducing apparatus which generates end of data transfer signal and which transfers data after communication error without resetting address data 失效
标题翻译：产生数据传送信号结束并且在通信错误之后传送数据而不重置地址数据的音频/视频数据再现装置
公开(公告)号：US5276841A
公开(公告)日：1994-01-04
申请号：US682522
申请日：1991-04-09
申请人： Kenji Moronaga , Mikio Watanabe , Katsuya Makioka
发明人： Kenji Moronaga , Mikio Watanabe , Katsuya Makioka
IPC分类号： G06F11/14 , G06T1/00 , H04L1/00 , H04L29/02 , H04M11/10 , H04N1/00 , H04N1/21 , H04N1/32 , H04N5/225 , H04N7/54 , H04N19/89 , G06F12/02
CPC分类号： H04N19/89 , G06F11/1443 , H04N1/32614 , H04N1/32641 , H04N1/32673 , H04N7/54 , H04N1/00204 , H04N2201/0084 , H04N2201/0087 , H04N2201/3264
摘要： An audio/video data reproducing apparatus reads out data from a first storage, which has its storage area equally divided into clusters and stores audio/video data on a cluster-by-cluster basis, to transfer the data read out to utility equipment over a communication path. A second storage stores address data designating clusters of the first storage. Clusters including data to be read out are searched for, and the address data designating the clusters thus searched for is stored in the second storage in a predetermined order. The address data is then sequentially read out from the second storage to generate a real address addressing a storage location of the storage area, which is in turn provided with the real address to develop the stored data in the predetermined order. In response to an error occurring during the transmission on the communication path, the second storage is interrupted from developing the address data therefrom. In response to an amount of the audio/video data corresponding to the capacity of one cluster having been transferred, the second storage develops address data designating another cluster including following data to be read out to generate a real address accordingly. When the clusters associated with the audio/video data already transferred reach in number the clusters searched for, an end-of-read signal is developed.
摘要翻译：音频/视频数据再现装置从第一存储器读出数据，该第一存储器的存储区域被均匀地划分成簇，并且逐个逐个存储音频/视频数据，以将读出的数据传送到公用设备上通信路径。第二存储器存储指定第一存储器的集群的地址数据。搜索包括要读出的数据的集群，并且以预定顺序将指定如此搜索的集群的地址数据存储在第二存储器中。然后从第二存储器顺序地读出地址数据，以产生寻址存储区域的存储位置的实际地址，该存储区域依次提供真实地址以按预定顺序开发存储的数据。响应于在通信路径上的传输期间发生的错误，第二存储器从其开发地址数据中断。响应于与已经传送的一个簇的容量相对应的音频/视频数据的量，第二存储器产生指定另一个簇的地址数据，其中包括要读出的以下数据，从而相应地生成实际地址。当与已经传送的音频/视频数据相关联的群集达到搜索到的群集数量时，开发读出结束信号。

10. 发明授权

US5229864A Device for regenerating a picture signal by decoding 失效
标题翻译：用于通过解码再现图像信号的装置
公开(公告)号：US5229864A
公开(公告)日：1993-07-20
申请号：US682244
申请日：1991-04-09
申请人： Kenji Moronaga , Mikio Watanabe , Nihei Kaname
发明人： Kenji Moronaga , Mikio Watanabe , Nihei Kaname
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30
CPC分类号： H04N19/90 , H04N19/86
摘要： A device for decoding digital picture data coded by compression to thereby regenerate original picture data has a decoding section for decoding the digital picture data. A reverse normalizing section reversely normalizes picture data outputted by the decoding section. A reverse orthogonal transforming section executes two-dimensional reverse orthogonal transform with picture data outputted by the reverse normalizing section. A data counting section counts coded data existing in a plurality of blocks constituting the digital picture data block by block. A filter selecting section selects an interblock filter and an edge filter on the basis of the amount of coded data determined by the data counting section block by block. A correcting section corrects a distortion between nearby blocks by using the interblock filter selected, while an edge enhancing section executes edge enhancement by using the edge filter. The filter selecting section selects the intensity of the interblock filter and the intensity of the edge filter on the basis of the amount of coded data determined block by block. The filters for the correction of a distortion may be replaced with predicted values which are determined on the basis of the activities of individual blocks and substituted for pixel data. Random noise matching the activities of individual blocks may be added to pixel data after the correction in order to eliminate the distortion of contours of the blocks.
摘要翻译：用于解码通过压缩编码的数字图像数据从而再生原始图像数据的装置具有用于对数字图像数据进行解码的解码部分。反向归一化部分使由解码部分输出的图像数据反向归一化。反向正交变换部分执行由反向归一化部分输出的图像数据的二维反向正交变换。数据计数部分逐块地对构成数字图像数据的多个块中存在的编码数据进行计数。滤波器选择部分根据由数据计数部分逐块确定的编码数据量来选择一个块间滤波器和一个边缘滤波器。校正部分通过使用所选择的块间滤波器来校正附近块之间的失真，而边缘增强部分通过使用边缘滤波器来执行边缘增强。滤波器选择部分基于逐块确定的编码数据量来选择块间滤波器的强度和边缘滤波器的强度。用于校正失真的滤波器可以由基于各个块的活动确定并代替像素数据的预测值来代替。可以在校正之后将与单个块的活动匹配的随机噪声添加到像素数据，以消除块的轮廓的失真。

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