公开(公告)号：US4787292A

公开(公告)日：1988-11-29

申请号：US97803

申请日：1987-09-16

申请人： Yasuo Tsuyuki ,  Haruo Suzuki ,  Hidefumi Inoue ,  Junichi Ohki

发明人： Yasuo Tsuyuki ,  Haruo Suzuki ,  Hidefumi Inoue ,  Junichi Ohki

IPC分类号： B60T13/57 ,  F15B9/10

CPC分类号： B60T13/57

摘要： The invention relates to a locking arrangement for a key member used in a brake booster. A key member includes an arcuate portion which surrounds substantially one-half the perimeter of a valve body, and engaging recesses are formed at the opposite ends of the arcuate portion on the inner side. A retainer surrounds substantially one-half the perimeter of the valve body at a location opposite to the arcuate portion of the key member. The opposite ends of the retainer are formed with engaging pawls on the outer side for engaging with the engaging recesses under the resilience of the retainer. Accordingly, by merely assembling the key member and the retainer with the valve body, the engaging pawls of the retainer can be automatically engaged with the engaging recesses in the key member, thereby preventing the withdrawal of the retainer and the key member from the valve body.

摘要翻译： 本发明涉及一种用于制动助力器中的钥匙构件的锁定装置。 钥匙构件包括围绕阀体的大致一半的周边的弓形部分，并且在内侧的弓形部分的相对端处形成接合凹部。 在与键构件的弓形部分相对的位置处，保持器围绕阀体的周边大致为一半。 保持器的相对端在外侧上形成有接合爪，用于在保持器的弹性下与接合凹部接合。 因此，通过仅将键构件和保持器与阀体组合，保持器的接合爪能够自动地与键构件中的接合凹槽接合，从而防止保持器和键构件从阀体抽出 。

公开(公告)号：US4996904A

公开(公告)日：1991-03-05

申请号：US449261

申请日：1989-12-12

申请人： Junichi Ohki ,  Atushi Satoh

发明人： Junichi Ohki ,  Atushi Satoh

IPC分类号： B60T13/563 ,  B60T13/569

CPC分类号： B60T13/569 ,  B60T13/563

摘要： In the negative pressure booster equipment 1 according to the present invention, a groove 27 is provided on the inner peripheral beads 14a and 16a of the diaphragms 14 and 16, fixed on the valve body 8 and forming the power pistons in order to communicate the variable pressure chambers 5b and 7b divided by the diaphragms 14 and 16 with the passages 26 and 28 corresponding to the variable pressure chambers 5b and 7b. Accordingly, the air passages are opened to the variable pressure chambers 5b and 7b through the groove 27 formed on the beads 14a and 16a of the diaphragms 14 and 16. According to this invention, therefore, there is no need to provide wide gap between the fixed portion of the beads and the center plate in order to open the air passages to the variable pressure chambers. This makes it possible to shorten overall length of the negative pressure booster equipment 1.

摘要翻译： 在根据本发明的负压增压设备1中，在隔膜14和16的内周边胎圈14a和16a上设置一个槽27，该槽27固定在阀体8上并形成动力活塞，以便使变量 压力室5b和7b由隔膜14和16分开，通道26和28对应于可变压力室5b和7b。 因此，空气通道通过形成在隔膜14和16的凸缘14a和16a上的槽27向可变压力室5b和7b打开。因此，根据本发明，不需要在 珠的固定部分和中心板，以将空气通道打开到可变压力室。 这使得可以缩短负压增压设备1的总长度。

公开(公告)号：US4942476A

公开(公告)日：1990-07-17

申请号：US189138

申请日：1988-05-02

申请人： Toshio Koga ,  Junichi Ohki ,  Mutsumi Ohta ,  Hideto Kunihiro

发明人： Toshio Koga ,  Junichi Ohki ,  Mutsumi Ohta ,  Hideto Kunihiro

IPC分类号： H04N5/92 ,  G11B20/10 ,  H04N5/85 ,  H04N5/926

CPC分类号： H04N5/9262 ,  H04N5/85

摘要： In a recording system, a sequence of image signals obtained from a sequence of images are used to generate and record a sequence of recordable signals on a read only memory. Efficient coding of the received sequence of image signals is carried out through the use of a given parameter which is adaptively and dynamically changed, preferably manually, through a parameter controller acting as the interactive device. The image signals are repeatedly subjected to the efficient coding process. The process uses a sequence of predictive signals to produce coded signals. The predictive signals are displayed on a monitor display device to be monitored by an operator. The operator changes the attributes of the parameter until an optimum image is obtained. The optimum parameter is stored on a magnetic tape. The image signals subjected to the efficient coding enable the production of a sequence of coded image signals which are recorded on the read only memory in synchronism with the optimum parameter, after the optimum image has been obtained.

摘要翻译： 在响应于一系列图像信号以在主图像记录介质上记录一系列记录信号的记录系统中，通过使用通过参数控制器自适应地从一个到另一个改变的参数来执行有效的编码 35）作为人机交互设备。 参考一系列预测值信号V（i），将图像信号重复地提供给记录系统以进行有效编码。 预测值信号显示在监视器显示装置（37）上，由操作者监视。 操作人员可以通过使用最佳参数，观看显示设备，将参数从一个改变到另一个直到显示最佳图像。 最佳参数在磁带（36）上发送。 在获得最佳图像之后，将图像信号经受有效编码成与记录在主图像记录介质上的编码图像信号序列同步的最佳参数。

公开(公告)号：US5483534A

公开(公告)日：1996-01-09

申请号：US68171

申请日：1993-05-28

申请人： Junichi Ohki ,  Toshio Koga

发明人： Junichi Ohki ,  Toshio Koga

IPC分类号： H04B14/04 ,  H04N7/08 ,  H04N7/081 ,  H04N7/58 ,  H04N19/00 ,  H04N19/115 ,  H04N19/15 ,  H04N19/166 ,  H04N19/46 ,  H04N19/70 ,  H04N7/12

CPC分类号： H04N21/2365 ,  H04N21/4347

摘要： In a transmitting system, a first multiplexer multiplexes first through M-th encoded digital video signals from encoders to produce a primary multiplex signal comprising cells which have channel codes, address codes, and cell data, where M represents an integer greater than two. Each of the cell data represents a part of one of the encoded digital video signals. Each of the channel codes indicates one of the encoded digital video signals. Each of the address codes indicates a position of one of the cell datum. A first demultiplexer demultiplexes the primary multiplex signal to produce first through N-th primary demultiplex signals, where N represents an integer which is less than M and greater than one. A second multiplexer multiplexes the first through the N-th primary demultiplex signals from the first demultiplexer through first through N-th transmitting paths to produce a secondary multiplex signal. A second demultiplexer demultiplexes the secondary multiplex signal datum in response to the channel codes and the address codes to produce the first through the M-th encoded digital video signals.

摘要翻译： 在发射系统中，第一多路复用器多路复用来自编码器的第一至第M编码数字视频信号，以产生包括具有信道码，地址码和小区数据的小区的主复用信号，其中M表示大于2的整数。 每个单元数据表示编码的数字视频信号之一的一部分。 每个信道码表示编码的数字视频信号之一。 每个地址码指示单元格基准之一的位置。 第一解复用器解复用主多路复用信号以产生第一至第N主要多路分解信号，其中N表示小于M且大于1的整数。 第二复用器从第一多路分解器通过第一至第N传输路径多路复用第一至第N主要多路复用信号以产生辅助复用信号。 第二解复用器响应于信道码和地址码来解复用辅助复用信号数据，以产生第一到第M个编码的数字视频信号。

公开(公告)号：US4951550A

公开(公告)日：1990-08-28

申请号：US263642

申请日：1988-10-27

申请人： Junichi Ohki ,  Shintaro Uyama

发明人： Junichi Ohki ,  Shintaro Uyama

IPC分类号： B60T13/57

CPC分类号： B60T13/57 ,  Y10T403/32901 ,  Y10T403/60 ,  Y10T74/2142

摘要： A brake booster is disclosed which reduces an idle stroke of an input shaft. A key member which is mechanically coupled to a valve plunger which forms part of a valve mechanism is provided with an elastic member so that when the brake booster is inoperative, the elastic member on the key member abuts against a shell and a valve body, respectively, thereby limiting a retracting movement of the valve body. Under this condition, a retracting movement of the key member is allowed by an elastic deformation of the elastic member if the input shaft is pulled rearward to cause a retracting movement of the valve plunger and the key member.

摘要翻译： 公开了一种减小输入轴的空转行程的制动助力器。 机械地连接到形成阀机构的一部分的阀柱塞的键构件设置有弹性构件，使得当制动助力器不起作用时，键构件上的弹性构件分别抵靠壳体和阀体 从而限制阀体的回缩运动。 在这种情况下，如果输入轴向后拉动，则弹性构件的弹性变形就允许键构件的回缩运动，从而导致阀柱塞和键构件的缩回运动。

公开(公告)号：US4851906A

公开(公告)日：1989-07-25

申请号：US116061

申请日：1987-10-30

申请人： Toshio Koga ,  Junichi Ohki

发明人： Toshio Koga ,  Junichi Ohki

IPC分类号： G06T9/00 ,  H04N7/28 ,  H04N7/36

CPC分类号： H04N19/94 ,  H04N19/503

摘要： In an image communication system, an input image sequence is converted into a block-formatted sequence. A data compression signal indicative of the amount of moving blocks in the block-formatted sequence is generated to individually control a plurality of vector quantizers each having a particular frequency band and a memory containing output vectors. The output vectors of each of the vector quantizers is representative of inverse orthogonal transform of a code table of optimum quantized vectors in the particular frequency band, the optimum quantized vectors being orthogonal transform of interframe differential training image sequences. The output vectors is retrievable from the memory as a function of an interframe differential image sequence, or prediction error. Each vector quantizer selects one of the vectors retrieved from the memory which is nearest to the value of the interframe differential image sequence and generates an index signal representative of the selected vector, which index signal is encoded and transmitted to a destination. The outputs of the vector quantizers are processed by inverse vector quantizers to generate a predictive image sequence. The prediction error is detected as a difference between the predictive image sequence and the block-formatted sequence.

摘要翻译： 在图像通信系统中，输入图像序列被转换成块格式的序列。 产生指示块格式化序列中的移动块的量的数据压缩信号，以单独控制每个具有特定频带的多个矢量量化器和包含输出向量的存储器。 每个矢量量化器的输出矢量表示特定频带中最佳量化矢量的码表的逆正交变换，最佳量化矢量是帧间差分训练图像序列的正交变换。 作为帧间差分图像序列或预测误差的函数，从存储器检索输出向量。 每个矢量量化器选择从存储器检索的最接近于帧间差分图像序列的值的一个矢量，并产生代表所选向量的索引信号，该索引信号被编码并发送到目的地。 矢量量化器的输出由逆矢量量化器处理，以产生预测图像序列。 预测误差被检测为预测图像序列与块格式化序列之间的差异。

公开(公告)号：US5719628A

公开(公告)日：1998-02-17

申请号：US676901

申请日：1996-07-08

申请人： Junichi Ohki

发明人： Junichi Ohki

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/50 ,  H04N7/18

CPC分类号： H04N19/107 ,  H04N19/61

摘要： An efficient coding system for interlaced video sequences with forced refreshing capabilities. An input picture of is divided into two fields, a first and a second field. Certain lines or portions of lines in each respective field are designated for forced refreshing, while the non-designated lines are interframe prediction coded. The designated lines of first field are intrafield prediction coded, while the designated lines of the second field are interfield prediction coded. The selection and implementation of the refreshing of the first and second fields is executed by the controller and switching circuitry of the coding system.

摘要翻译： 一种用于具有强制刷新功能的隔行视频序列的高效编码系统。 输入图像被分成两个场，第一和第二场。 每个相应字段中的某些行或部分行被指定用于强制刷新，而非指定行被帧间预测编码。 第一场的指定行是进行帧内预测编码的，而第二场的指定行被进行场间预测编码。 通过编码系统的控制器和切换电路来执行第一和第二场刷新的选择和实现。

公开(公告)号：US4969039A

公开(公告)日：1990-11-06

申请号：US213534

申请日：1988-06-30

申请人： Toshio Koga ,  Junichi Ohki ,  Mutsumi Ohta ,  Yoshihiro Miyamoto ,  Hideto Kunhiro

发明人： Toshio Koga ,  Junichi Ohki ,  Mutsumi Ohta ,  Yoshihiro Miyamoto ,  Hideto Kunhiro

IPC分类号： G06T9/00 ,  H04N5/85 ,  H04N5/926 ,  H04N7/26 ,  H04N7/36

CPC分类号： H04N19/142 ,  H04N19/179 ,  H04N19/503 ,  H04N19/87 ,  H04N5/9262 ,  H04N5/85

摘要： In an image processing system for use in processing a sequence of image signals carrying a moving image, the image signal sequence is divided into a sequence of partial image signals each of which carries a scene subsequence defined by scene changes. A background signal generator determines a background portion of the moving image by monitoring a whole of each partial image signal and produces a background signal. The background signal is coded by a coder prior to a sequence of error signals resulting from predictive coding of each partial signal. During prediction of the background signal, the error signals may be rendered to zero in the coder. The background signal may be either determined at every picture element or at every block composed of a plurality of picture elements.

摘要翻译： 在用于处理携带运动图像的图像信号的序列的图像处理系统中，图像信号序列被划分为每个部分图像信号的序列，每个部分图像信号携带由场景变化定义的场景子序列。 背景信号发生器通过监视每个部分图像信号的整体来确定运动图像的背景部分并产生背景信号。 在由每个部分信号的预测编码产生的误差信号序列之前，由编码器对背景信号进行编码。 在背景信号的预测期间，可以在编码器中使误差信号变为零。 可以在每个图像元素处或在由多个图像元素组成的每个块处确定背景信号。

公开(公告)号：US4689673A

公开(公告)日：1987-08-25

申请号：US872780

申请日：1986-06-10

申请人： Junichi Ohki ,  Akihiro Furukawa

发明人： Junichi Ohki ,  Akihiro Furukawa

IPC分类号： G06T7/20 ,  H04N7/26 ,  H04N7/36 ,  H04N7/137

CPC分类号： G06T7/2013 ,  H04N19/142 ,  H04N19/179 ,  H04N19/503 ,  H04N19/51 ,  H04N19/87 ,  G06T2207/10016

摘要： In a movement compensation predictive encoder, a vector detector (19) is supplied with a moving picture signal and produces a movement vector signal representative of at least one movement vector for each region of each frame. A picture analyzer (16) serves as a variation detector for detecting a variation in each region to produce a variation signal when the variation exceeds a predetermined threshold in one of the regions. The variation signal is used in giving a predetermined value, such as zero, to the above-mentioned at least one movement vector for that one of the regions. In place of the variation detector, a scene change detector can likewise be used to produce a scene change signal for giving a predetermined value to the movement vectors for a frame for which a scene change is detected. The scene change detector is preferably operable on a summation for each frame of results of evaluation for movement compensated prediction errors rather than, as in prior art, for differences between picture elements of two consecutive frames.

摘要翻译： 在运动补偿预测编码器中，矢量检测器（19）被提供有运动图像信号，并产生代表每帧的每个区域的至少一个运动矢量的运动矢量信号。 图像分析器（16）用作变化检测器，用于当区域中的一个区域中的变化超过预定阈值时，检测每个区域的变化以产生变化信号。 变化信号用于向上述至少一个区域的一个运动矢量给出诸如零的预定值。 同样可以使用场景改变检测器来产生场景改变信号，以便为检测到场景变化的帧的运动矢量给出预定值。 优选地，对于运动补偿预测误差的评估结果的结果，场景变化检测器可操作，而不是像现有技术中那样用于两个连续帧的像素之间的差异。

公开(公告)号：US4651206A

公开(公告)日：1987-03-17

申请号：US690130

申请日：1985-01-10

申请人： Junichi Ohki

发明人： Junichi Ohki

IPC分类号： G06T7/20 ,  G06T9/00 ,  H04N7/26 ,  H04N7/36 ,  H04N7/50 ,  H04N7/12

CPC分类号： G06T7/2013 ,  H04N19/107 ,  H04N19/51 ,  H04N19/61 ,  G06T2207/10016

摘要： An inter-frame coding circuit for encoding a television video signal to reduce the quantity of data to be transmitted. The coding circuit includes a motion detection circuit which produces a motion vector representative of motion contained in the television signal and an inter-frame prediction coder which is responsive to the motion vector and to the input television signal to produce a prediction error signal which indicates frame-to-frame variations in the television signal. Also included is a refresh circuit for spatially correlating the input signal on an intra-frame basis. To reduce or eliminate the possibility that an error in the signal is magnified, the motion vector is set to zero for a predetermined period in relation to an area or a portion of the video signal for which a refresh operation has just been completed. A transmission circuit transmits the motion vector signal, the prediction error signal, and a refresh execution signal which are used for reproducing the original video signal. A counterpart decoding circuit for receiving the transmitted signals and reproducing from them the original video signal is provided.

摘要翻译： 一种用于编码电视视频信号以减少要发送的数据量的帧间编码电路。 该编码电路包括：运动检测电路，产生代表电视信号中运动的运动矢量;以及帧间预测编码器，其响应运动矢量和输入电视信号产生指示帧的预测误差信号 到电视信号的帧间变化。 还包括用于在帧内基础上对输入信号进行空间相关的刷新电路。 为了减少或消除信号中的错误被放大的可能性，相对于刷新操作刚刚完成的视频信号的区域或部分，将运动矢量设置为零预定时间段。 发送电路发送用于再现原始视频信号的运动矢量信号，预测误差信号和刷新执行信号。 提供了用于接收发送信号并从其再现原始视频信号的对应解码电路。