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1. 发明授权

US5859668A Prediction mode selecting device in moving image coder 失效
标题翻译：运动图像编码器中的预测模式选择装置
公开(公告)号：US5859668A
公开(公告)日：1999-01-12
申请号：US757905
申请日：1996-11-27
申请人： Tomoko Aono , Toshiyuki Miyake , Hiroyuki Katata , Yoichi Fujiwara , Hiroshi Kusao
发明人： Tomoko Aono , Toshiyuki Miyake , Hiroyuki Katata , Yoichi Fujiwara , Hiroshi Kusao
IPC分类号： H04N5/92 , G06T9/00 , H04N7/18 , H04N19/103 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/176 , H04N19/196 , H04N19/42 , H04N19/50 , H04N19/503 , H04N19/51 , H04N19/577
CPC分类号： H04N19/00 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/503 , H04N19/51 , H04N19/577 , H04N19/587 , H04N19/59 , H04N19/61 , H04N19/107
摘要： A moving image coder has a forward predicting motion vector/prediction error amount detecting section for detecting an optimum motion vector from a past frame, making a predicted image and calculating a prediction error amount from the present frame. The coder also has a backward predicting motion vector/prediction error amount detecting section for detecting an optimum motion vector from a future frame, making a predicted image and calculating a prediction error amount from the present frame. The coder further has a comparator/mode selecting section for inputting the prediction error amounts from the forward predicting motion vector/prediction error amount detecting section and the backward prediction motion vector/prediction error amount detecting section, making a comparative calculation of the input prediction error amounts, and selecting one of a forward prediction mode, a backward prediction mode and a bidirectional prediction mode.
摘要翻译：运动图像编码器具有用于从过去帧检测最佳运动矢量的前向预测运动矢量/预测误差量检测部分，作出预测图像并从当前帧计算预测误差量。编码器还具有用于从未来帧检测最佳运动矢量的后向预测运动矢量/预测误差量检测部分，作出预测图像并从当前帧计算预测误差量。编码器还具有比较器/模式选择部，用于从前向预测运动矢量/预测误差量检测部和后向预测运动矢量/预测误差量检测部输入预测误差量，进行输入预测误差的比较计算量，并且选择正向预测模式，后向预测模式和双向预测模式中的一种。

2. 发明授权

US5856848A Moving image coder 失效
标题翻译：运动图像编码器
公开(公告)号：US5856848A
公开(公告)日：1999-01-05
申请号：US882114
申请日：1997-06-25
申请人： Yoichi Fujiwara , Toshiyuki Miyake , Hiroyuki Katata , Tomoko Aono , Hiroshi Kusao
发明人： Yoichi Fujiwara , Toshiyuki Miyake , Hiroyuki Katata , Tomoko Aono , Hiroshi Kusao
IPC分类号： H04N19/50 , G06T9/00 , H04N19/107 , H04N19/136 , H04N19/137 , H04N19/14 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/42 , H04N19/423 , H04N19/46 , H04N19/503 , H04N19/51 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/91 , H04N7/18
CPC分类号： H04N19/42 , H04N19/107 , H04N19/61
摘要： A moving image coder has an arithmetic unit for calculating an average value of a coding object block; an arithmetic unit for obtaining an alternating current component by subtracting the average value from each of pixel values of the coding object block; an arithmetic unit for obtaining a intra frame activity amount by making a calculation of the same kind as an error calculation in a motion prediction with respect to the obtained alternating current component; and a comparator for comparing the intra frame activity amount with a predicting error amount calculated when the motion prediction is made. The inter frame coding mode or the intra frame coding mode is judged by large and small relations of the predicting error amount and the intra frame activity amount. In this moving image coder, codings of a intra frame block and a inter frame differential block are adaptively switched in a small hardware scale.
摘要翻译：运动图像编码器具有用于计算编码对象块的平均值的算术单元; 算术单元，用于通过从编码对象块的每个像素值中减去平均值来获得交流分量; 算术单元，用于通过在所获得的交流分量中进行与运动预测中的误差计算相同种类的计算来获得帧内活动量; 以及用于将帧内活动量与进行运动预测时计算出的预测误差量进行比较的比较器。通过预测误差量和帧内活动量的大小关系来判断帧间编码模式或帧内编码模式。在该运动图像编码器中，以小的硬件尺度自适应地切换帧内块和帧间差分块的编码。

3. 发明授权

US5760835A Video coding device 失效
标题翻译：视频编码装置
公开(公告)号：US5760835A
公开(公告)日：1998-06-02
申请号：US890510
申请日：1997-07-09
申请人： Yoichi Fujiwara , Hiroshi Kusao , Toshiyuki Miyake , Hiroyuki Katata , Tomoko Aono
发明人： Yoichi Fujiwara , Hiroshi Kusao , Toshiyuki Miyake , Hiroyuki Katata , Tomoko Aono
IPC分类号： H04N7/30 , G06T9/00 , H04N7/26 , H04N7/32 , H04N7/50 , H04N7/36
CPC分类号： H04N19/137 , H04N19/105 , H04N19/112 , H04N19/61
摘要： The prediction error value calculated by a motion estimating portion is used for selecting the frame or field orthogonal transform coding mode. The frame prediction error value EFr and the field prediction error value EFi are calculated by the motion estimating portion and entered into a comparator of an orthogonal transform mode selecting portion which in turn compares them with each other and generates an orthogonal transform mode selecting signal TC. The use of the prediction error values for selecting the orthogonal transform mode makes it possible to reduce the size of the necessary hardware and saves much time of data processing necessary for judgment of the orthogonal transform mode selection.
摘要翻译：由运动估计部分计算的预测误差值用于选择帧或场正交变换编码模式。帧预测误差值EFr和场预测误差值EFi由运动估计部分计算并输入到正交变换模式选择部分的比较器，正交变换模式选择部分进而将它们相互比较并产生正交变换模式选择信号TC。使用用于选择正交变换模式的预测误差值使得可以减小所需硬件的尺寸并且节省了用于正交变换模式选择的判断所需的大量数据处理时间。

4. 发明授权

US5721588A Video coding device 失效
公开(公告)号：US5721588A
公开(公告)日：1998-02-24
申请号：US417222
申请日：1995-04-05
申请人： Yoichi Fujiwara , Hiroshi Kusao , Toshiyuki Miyake , Hiroyuki Katata , Tomoko Aono
发明人： Yoichi Fujiwara , Hiroshi Kusao , Toshiyuki Miyake , Hiroyuki Katata , Tomoko Aono
IPC分类号： H04N7/30 , G06T9/00 , H04N7/26 , H04N7/32 , H04N7/50 , H04N7/36
CPC分类号： H04N19/137 , H04N19/105 , H04N19/112 , H04N19/61
摘要： The prediction error value calculated by a motion estimating portion is used for selecting the frame or field orthogonal transform coding mode. The frame prediction error value EFr and the field prediction error value EFi are calculated by the motion estimating portion and entered into a comparator of an orthogonal transform mode selecting portion which in turn compares them with each other and generates an orthogonal transform mode selecting signal TC. The use of the prediction error values for selecting the orthogonal transform mode makes it possible to reduce the size of the necessary hardware and saves much time of data processing necessary for judgment of the orthogonal transform mode selection.

5. 发明授权

US06343100B1 Motion-vector detecting device 失效
标题翻译：运动矢量检测装置
公开(公告)号：US06343100B1
公开(公告)日：2002-01-29
申请号：US09085001
申请日：1998-05-28
申请人： Yoichi Fujiwara , Tadao Matsuura , Hiroshi Kusao
发明人： Yoichi Fujiwara , Tadao Matsuura , Hiroshi Kusao
IPC分类号： H04B166
CPC分类号： H04N19/105 , H04N19/112 , H04N19/137 , H04N19/51
摘要： In a motion-vector detecting device for detecting motion-vectors of images processed through a two-dimensional filter by a subsampling method, a filter circuit must process pixel values at a block boundary by delaying the pixel value in both horizontal and vertical directions, which complicates reading pixel data from memory and increases the size of the filter circuit. The present invention provides a motion-vector detecting device for detecting motion-vectors by searching a match of a coding block of a coding image with a prediction candidate-block in a searching area of a reference image. The invention further applies a one-dimensional filter for a coding block and a prediction candidate-block in a horizontal direction to restrict frequency bands of the blocks, and calculates a matching error-value between a part of the pixels in the band-limited coding block and a part of the pixels in the band-limited prediction block to detect a motion-vector, in calculating error-values for a group of pixels by the motion-vector detecting circuit, block-end pixels are considered to exist inside the block boundary by the number of pixels rounded off after a decimal point corresponding to one half of the number of taps of the spatial filters.
摘要翻译：在通过二次采样方法检测通过二维滤波器处理的图像的运动矢量的运动矢量检测装置中，滤波器电路必须通过延迟水平和垂直方向上的像素值来处理块边界处的像素值，使从存储器读取像素数据复杂化并增加滤波器电路的尺寸。本发明提供一种运动矢量检测装置，用于通过在参考图像的搜索区域中搜索编码图像的编码块与预测候选块的匹配来检测运动矢量。本发明还在水平方向上应用编码块和预测候选块的一维滤波器以限制块的频带，并且计算频带限制编码中的一部分像素之间的匹配误差值块和一部分像素在频带限制预测块中检测运动矢量，在运动矢量检测电路计算一组像素的误差值时，块结束像素被认为存在于块内边界乘以对应于空间滤波器抽头数的一半的小数点后四舍五入的像素数。

6. 发明授权

US6052417A Motion image coding apparatus adaptively controlling reference frame interval 失效
标题翻译：运动图像编码装置自适应地控制参考帧间隔
公开(公告)号：US6052417A
公开(公告)日：2000-04-18
申请号：US63895
申请日：1998-04-22
申请人： Yoichi Fujiwara , Tadao Matsuura , Hiroshi Kusao
发明人： Yoichi Fujiwara , Tadao Matsuura , Hiroshi Kusao
IPC分类号： H04N19/50 , G06T9/00 , H03M7/36 , H04N19/114 , H04N19/134 , H04N19/136 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/196 , H04N19/42 , H04N19/423 , H04N19/503 , H04N19/51 , H04N19/577 , H04N19/85 , H04N7/32
CPC分类号： H04N19/177 , H04N19/107 , H04N19/114 , H04N19/503 , H04N19/61
摘要： A motion image coding apparatus providing enhanced image quality as compared with the prior art includes a coding unit for coding first, second and third frames, a prediction efficiency calculating circuit for calculating prediction efficiency in inter-frame prediction, in coding by the coding unit using said first or second frame as a reference frame, and a reference frame interval determining circuit for determining a reference frame interval which is a time interval between the first and second frames, time interval between the second frames and time interval between the first frames.
摘要翻译：与现有技术相比，提供增强图像质量的运动图像编码装置包括：编码第一，第二和第三帧的编码单元，用于在帧间预测中计算预测效率的预测效率计算电路，编码单元使用所述第一帧或第二帧作为参考帧，以及参考帧间隔确定电路，用于确定作为第一帧和第二帧之间的时间间隔的参考帧间隔，第二帧之间的时间间隔和第一帧之间的时间间隔。

7. 发明授权

US06345708B1 Brake shoe anchor device for an internal drum brake device 失效
标题翻译：用于内部鼓式制动装置的制动蹄锚装置
公开(公告)号：US06345708B1
公开(公告)日：2002-02-12
申请号：US09572085
申请日：2000-05-17
申请人： Yoichi Fujiwara
发明人： Yoichi Fujiwara
IPC分类号： F16D5100
CPC分类号： F16D65/09 , F16D51/20 , F16D65/58
摘要： It is one object of this invention to eliminate a driver's impression of delay in braking effectiveness at an initial stage of a braking operation and the phenomenon of over-braking with an internal drum brake device. For this purpose rigid anchor members (61b, 61b) and deformable anchor members (64, 64) respectively providing supporting points for the brake shoes are located at diametrically different positions from a brake center. The brake shoes (20, 30) are supported by the deformable anchor members (64, 64) until a braking force reaches a predetermined value but are supported by the rigid anchor members (61b, 61b) when braking forces exceeds the predetermined value.
摘要翻译：本发明的一个目的是消除驾驶员在制动操作的初始阶段的制动效果延迟的印象以及内部鼓式制动装置过度制动的现象。为此，分别提供用于制动蹄的支撑点的刚性锚定构件（61b，61b）和可变形锚定构件（64,64）位于与制动中心完全不同的位置。制动蹄（20,30）由可变形的锚定构件（64,64）支撑，直到制动力达到预定值，但是当制动力超过预定值时，由刚性锚固构件（61b，61b）支撑。

8. 发明授权

US06131708A Drum brake device 失效
标题翻译：鼓式制动装置
公开(公告)号：US06131708A
公开(公告)日：2000-10-17
申请号：US167558
申请日：1998-10-07
申请人： Yoichi Fujiwara
发明人： Yoichi Fujiwara
IPC分类号： F16D51/24 , F16D51/50 , F16D65/00 , F16D65/09
CPC分类号： F16D51/50 , F16D51/24 , F16D65/0006 , F16D65/09
摘要： A shock absorber (13) is provided between the anchor (9) and the ends (2b, 3b) of the brake shoes (2, 3) facing the anchor (9) to reduce the impact noise between the brake shoe and the anchor.
摘要翻译：减震器（13）设置在所述锚固件（9）和面向所述锚固件（9）的所述制动蹄（2,3）的端部（2b，3b）之间，以减小所述制动蹄和所述锚固件之间的冲击噪声。

9. 发明授权

US06356590B1 Motion vector detecting device 失效
标题翻译：运动矢量检测装置
公开(公告)号：US06356590B1
公开(公告)日：2002-03-12
申请号：US09165151
申请日：1998-10-02
申请人： Tadao Matsuura , Yoichi Fujiwara
发明人： Tadao Matsuura , Yoichi Fujiwara
IPC分类号： H04N712
CPC分类号： H04N19/51
摘要： An apparatus is provided to reduce the memory capacity required to hold the data of a search area when motion vector detection is conducted in a wider area by using a plurality of motion vector detecting circuits. A motion vector detecting device includes an object pixel memory, reference pixel memory, motion vector detecting circuits, and a vector selecting circuit. Data of different blocks are provided to each of motion vector detecting circuits from the object pixel memory. Data of common search areas are simultaneously provided to the motion vector detecting circuits from the reference pixel memory. Output from each of the motion vector detecting circuits is processed by the vector selecting circuit to provide a motion vector in a search area which is wider than the search area of each motion vector.
摘要翻译：提供了一种装置，用于通过使用多个运动矢量检测电路来在较宽区域中进行运动矢量检测时，减少保持搜索区域的数据所需的存储容量。运动矢量检测装置包括对象像素存储器，参考像素存储器，运动矢量检测电路和矢量选择电路。从对象像素存储器向每个运动矢量检测电路提供不同块的数据。公共搜索区域的数据从参考像素存储器同时提供给运动矢量检测电路。来自每个运动矢量检测电路的输出由矢量选择电路处理，以在比每个运动矢量的搜索区域宽的搜索区域中提供运动矢量。

10. 发明授权

US6091774A Code-amount control device and video coding device including the code-amount control device 失效
标题翻译：码量控制装置和包括码量控制装置的视频编码装置
公开(公告)号：US6091774A
公开(公告)日：2000-07-18
申请号：US30205
申请日：1998-02-25
申请人： Masaaki Hyodo , Yoichi Fujiwara , Tadao Matsuura
发明人： Masaaki Hyodo , Yoichi Fujiwara , Tadao Matsuura
IPC分类号： G06T9/00 , H03M7/40 , H04N19/115 , H04N19/132 , H04N19/134 , H04N19/146 , H04N19/149 , H04N19/176 , H04N19/196 , H04N19/42 , H04N19/423 , H04N19/426 , H04N19/503 , H04N19/51 , H04N19/60 , H04N19/61 , H04N19/625 , H04N19/91 , H04N7/30
CPC分类号： H04N19/192 , H04N19/115 , H04N19/124 , H04N19/149 , H04N19/176 , H04N19/60 , H04N19/61 , H04N19/13 , H04N19/146 , H04N19/152 , H04N19/91
摘要： The invention is directed to provide a code-amount control device for use in video-coding device, which controls the generated code-amount of each block (block length) after variable-length coding in the video-coding process to surely be less than the designated target code-amount. The code amount control device is provided with a rate control circuit for setting a target code-amount of each of blocks to be encoded, a rounding circuit for converting a sequence of quantized values into a set of the number of continuous zeroes and following thereto non-zero quantized values and a code-length table containing variable code-length values to be allocated to respective sets of the number of continuous zeroes and non-zero values. Before variable-length encoding of the image block, the rounding circuit estimates by accumulating the code length of each block with reference to the code-length table and outputs the quantized values as they are to a variable-length coding circuit when the accumulated code-length does not exceed the target code-amount. If the estimated code-length exceeds the target code-amount, the rounding circuit outputs the quantized values after rounding off the excessive portion thereof.
摘要翻译：本发明旨在提供一种在视频编码装置中使用的码量控制装置，其在视频编码处理中控制可变长度编码之后的每个块（块长度）的生成码量肯定小于指定的目标代码量。代码量控制装置设置有用于设置要编码的每个块的目标代码量的速率控制电路，用于将量化值序列转换为连续零个数的集合的舍入电路， - 零量化值和包含可分配给连续零和非零值的相应组的可变代码长度值的代码长度表。在图像块的可变长度编码之前，舍入电路通过参考码长表累积每个块的码长来估计，并且当累加码字编码电路时将量化值原样输出到可变长度编码电路，长度不超过目标代码量。如果估计码长超过目标码量，则舍入电路在舍入其过多部分之后输出量化值。

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