公开(公告)号：US20050211079A1

公开(公告)日：2005-09-29

申请号：US11057568

申请日：2005-02-14

申请人： Tomoya Sasaki ,  Yuji Fujiwara

发明人： Tomoya Sasaki ,  Yuji Fujiwara

IPC分类号： G01P3/00 ,  G10F1/02 ,  G10G3/04 ,  G10H1/00 ,  G10H3/00 ,  G10H5/00

CPC分类号： G10F1/02 ,  G10G3/04

摘要： An automatic playing system creates a feedback control loop for the keys incorporated in an acoustic piano; key sensors, which are provided under the front portions of the keys, informs a motion controller of current positions, and the motion controller periodically compares the current position and a current velocity with a target position on a reference trajectory and a target velocity to see whether or not a positional deviation and a velocity deviation occur; when the motion controller finds the deviations, the motion controller multiplies the deviations by a position gain and a velocity gain for determining an increment or decrement of the duty ratio of driving signals, and supplies the driving signals to the solenoid-operated actuators so as to accelerate or decelerate the keys; the gain is variable depending upon the key motion so that the actual key trajectory becomes close to the reference trajectory.

摘要翻译： 自动演奏系统为包含在原声钢琴中的琴键创建反馈控制回路; 提供在键的前部的键传感器通知运动控制器当前位置，并且运动控制器周期性地将当前位置和当前速度与参考轨迹上的目标位置和目标速度进行比较，以查看是否 或者不发生位置偏差和速度偏差; 当运动控制器发现偏差时，运动控制器将偏差乘以位置增益和速度增益，以确定驱动信号的占空比的增减，并将驱动信号提供给电磁驱动的致动器，以便 加速或减速键; 增益根据关键运动而变化，使得实际的键轨迹变得接近参考轨迹。

公开(公告)号：US06859560B2

公开(公告)日：2005-02-22

申请号：US09811661

申请日：2001-03-19

申请人： Yuji Fujiwara ,  Masakazu Nishino ,  Mitsuhiro Miyashita

发明人： Yuji Fujiwara ,  Masakazu Nishino ,  Mitsuhiro Miyashita

IPC分类号： H04N7/26 ,  G06K9/36

CPC分类号： H04N19/184 ,  H04N19/115 ,  H04N19/176 ,  H04N19/186 ,  H04N19/37 ,  H04N19/60

摘要： An image signal encoding device has at least encoding means of dividing a luminescence signal and color-difference signals of image signals into macro blocks having a plurality of sub macro blocks and encoding data of the macro blocks with use of any one of a plurality of compression modes of which compression rate is different each other, wherein the total numbers of sub macro blocks in the each macro block are the same for the use of the all kinds of compression modes.

摘要翻译： 图像信号编码装置至少具有将发光信号和图像信号的色差信号分割成具有多个子宏块的宏块和使用多个压缩中的任何一个来编码宏块的数据的编码装置 压缩率彼此不同的模式，其中，对于使用各种压缩模式，每个宏块中的子宏块的总数相同。

公开(公告)号：US06801574B2

公开(公告)日：2004-10-05

申请号：US09919833

申请日：2001-08-02

申请人： Seiichi Takeuchi ,  Masakazu Nishino ,  Yuji Fujiwara ,  Kazuhiro Wake

发明人： Seiichi Takeuchi ,  Masakazu Nishino ,  Yuji Fujiwara ,  Kazuhiro Wake

IPC分类号： H04B166

CPC分类号： H04N21/2368 ,  H04N19/124 ,  H04N19/132 ,  H04N19/137 ,  H04N19/14 ,  H04N19/146 ,  H04N19/152 ,  H04N19/176 ,  H04N19/18 ,  H04N19/187 ,  H04N19/30 ,  H04N19/44 ,  H04N19/61 ,  H04N21/23418 ,  H04N21/234327 ,  H04N21/234363 ,  H04N21/2662 ,  H04N21/4331 ,  H04N21/4341

摘要： A video signal layering-encoding system has at least either a frequency distribution unit to judge a frequency distribution in an input video signal or a motion judgment unit to judge the motion of an input video signal. With this, encoding quantity control according to the characteristics of the input video signal can be performed between layers. Also, with selection of encode modes and sharing of a motion vector, the encoded data of a bidirectionally predicted frame can be reduced and the encoding efficiency of a high resolution signal can be increased.

摘要翻译： 视频信号分层编码系统至少具有用于判断输入视频信号中的频率分布的频率分布单元或运动判断单元，以判断输入视频信号的运动。 由此，可以在层之间执行根据输入视频信号的特性的编码量控制。 此外，通过选择编码模式和共享运动矢量，可以减少双向预测帧的编码数据，并且可以增加高分辨率信号的编码效率。

公开(公告)号：US06430594B1

公开(公告)日：2002-08-06

申请号：US09024139

申请日：1998-02-17

申请人： Masako Akiyama ,  Yuji Fujiwara

发明人： Masako Akiyama ,  Yuji Fujiwara

IPC分类号： G06F900

CPC分类号： G06F9/4887 ,  G06F9/461

摘要： In a real-time operating system, a plurality of tasks is grouped into blocks in consideration of the deadline times required by each task, switching between tasks that belong to the same block, is not done by the task switch of the real-time operating system, but rather is done directly by a task block scheduler, so that tasks within one and the same block are substantially treated as the same task. Only when the execution of a task belonging to a block that is different from the block of the currently executing task is to be started is the task switch used to switch between tasks, thereby reducing the load placed on the real-time operating system in managing tasks.

摘要翻译： 在实时操作系统中，考虑到每个任务所需的最终期限，属于同一个块的任务之间的切换，多个任务被分组成块，不是由实时操作的任务切换完成的 系统，而是由任务块调度器直接完成，使得同一块内的任务被实质性地视为相同的任务。 只有当属于与当前执行任务的块不同的块的任务的执行将在任务之间切换时，才能切换任务，从而减少管理中的实时操作系统上的负载 任务。

公开(公告)号：US06051762A

公开(公告)日：2000-04-18

申请号：US26537

申请日：1998-02-19

申请人： Yuji Fujiwara ,  Yasuhiko Oba

发明人： Yuji Fujiwara ,  Yasuhiko Oba

IPC分类号： G10F1/02 ,  G10G3/04 ,  G10H1/00 ,  G01F1/02 ,  G01F3/04 ,  G01F5/00

CPC分类号： G10G3/04 ,  G10F1/02 ,  Y10S84/07

摘要： An ideal automatic player piano is assumed to reproduce an original performance from fundamental data representative of a fundamental forward key trajectory and a backward key trajectory; however, if an actual automatic player piano reproduces a forward key trajectory and a backward key trajectory on the basis of the fundamental data, the forward key trajectory and the backward key trajectory do not faithfully reproduce the original key motions; for this reason, the actual automatic player piano learns first offset time at the end position and second offset time at an intermediate position between the end position and the rest position so as to determine a virtual forward key trajectory and a virtual backward key trajectory, and further learns first dead time around the rest position and second dead time around the rest position so as to exactly determining first starting time at the rest position and a second starting time at the end position, thereby moving keys along composite forward/backward trajectories for imparting a final hammer velocity to a hammer associated with the key to be moved in playback.

摘要翻译： 假设一个理想的自动演奏器钢琴从表示基本正向键轨迹和向后键轨迹的基本数据中再现原始演奏; 然而，如果实际的自动播放器钢琴基于基础数据再现前向键轨迹和向后键轨迹，则前向键轨迹和向后键轨迹不忠实地再现原始键运动; 为此，实际的自动演奏钢琴在终点位置和静止位置之间的中间位置处在结束位置和第二偏移时间学习第一偏移时间，以便确定虚拟向前键轨迹和虚拟向后键轨迹，以及 进一步学习围绕静止位置的第一死区时间和围绕静止位置的第二死区时间，从而准确地确定在静止位置处的第一开始时间和在结束位置处的第二开始时间，从而沿着复合的前向/后向轨迹移动键以传递 锤子的最终锤速度与与要在播放中移动的键相关联的锤子。

公开(公告)号：US5978545A

公开(公告)日：1999-11-02

申请号：US946904

申请日：1997-10-08

申请人： Shiro Kato ,  Masakazu Nishino ,  Tatsuro Juri ,  Yuji Fujiwara ,  Seiichi Takeuchi

发明人： Shiro Kato ,  Masakazu Nishino ,  Tatsuro Juri ,  Yuji Fujiwara ,  Seiichi Takeuchi

IPC分类号： H04N5/7826 ,  H04N9/79 ,  H04N9/797 ,  H04N9/804 ,  H04N9/877 ,  H04N5/917 ,  H04N7/01 ,  H04N7/26

CPC分类号： H04N5/782 ,  H04N9/7921 ,  H04N9/7925 ,  H04N9/7973 ,  H04N9/8042 ,  H04N5/78266 ,  H04N5/91 ,  H04N9/797 ,  H04N9/877

摘要： A video signal recording apparatus including a switching device for receiving a digital progressive scan TV signal having a frame cycle which is 1/2 of the frame cycle of an interlaced scan TV signal and switching the progressive scan TV signal frame by frame alternately; a coding device for performing high-rate coding of data corresponding to one frame of the progressive scan TV signal to the same code amount as obtained by high-rate coding of data corresponding to one frame including two successive fields of an interlaced scan standard-definition TV signal; and a recording device for recording the data processed with the high-rate coding in the same number of tracks as the data corresponding to one frame of the interlaced scan standard-definition TV signal.

摘要翻译： 一种视频信号记录装置，包括：切换装置，用于接收具有+ E的帧周期的数字逐行扫描TV信号，并且隔行扫描TV信号的帧周期的1/2 + EE，并切换逐行扫描TV信号帧 交替地; 用于对与逐行扫描TV信号的一帧相对应的数据进行高速率编码的编码装置与通过对包括隔行扫描标准清晰度的两个连续字段的一帧相对应的数据的高速率编码获得的相同的代码量进行编码 电视信号; 以及记录装置，用于以与对应于隔行扫描标准清晰度TV信号的一帧的数据相同数量的轨道记录用高速率编码处理的数据。

公开(公告)号：US5646695A

公开(公告)日：1997-07-08

申请号：US597322

申请日：1996-02-05

申请人： Yuji Fujiwara ,  Shouichi Nishino ,  Sigeru Awamoto ,  Toyohiko Matsuda

发明人： Yuji Fujiwara ,  Shouichi Nishino ,  Sigeru Awamoto ,  Toyohiko Matsuda

IPC分类号： H04N5/907 ,  H04N5/92 ,  H04N9/79 ,  H04N9/804 ,  H04N11/04 ,  H04N19/00 ,  H04N19/42 ,  H04N19/423 ,  H04N19/88 ,  H04N5/46

CPC分类号： H04N9/7921 ,  H04N9/8042 ,  H04N9/8047

摘要： In shuffling used as an efficient coding method for an input digital video signal, input digital television signals of different standards are judged in an input judging circuit, the judged information is sent out into a memory write control circuit and a memory read control circuit. The memory write control circuit determines the offset value of the vertical address according to the judgement signal, and writes the input signal at a position corresponding to the screen of the determined shuffling region of the shuffling range corresponding to each signal in the shuffling memory, or writes the block out of the shuffling range into the shuffling memory according to the specified control method in the vacant region of the shuffling range. The memory read control circuit changes over the offset value of the vertical address to be read out from the memory and the address control according to the judgement information.

摘要翻译： 在用作输入数字视频信号的有效编码方法的混洗中，在输入判断电路中判断输入不同标准的数字电视信号，将判断信息发送到存储器写入控制电路和存储器读取控制电路。 存储器写入控制电路根据判断信号确定垂直地址的偏移值，并将输入信号写入对应于在混洗存储器中与每个信号对应的混洗范围的确定的混洗区域的屏幕的位置，或 根据在混洗范围的空白区域中的指定控制方法将块从混洗范围写入混洗存储器。 存储器读取控制电路根据判断信息改变要从存储器读出的垂直地址的偏移值和地址控制。

公开(公告)号：US5627333A

公开(公告)日：1997-05-06

申请号：US654563

申请日：1996-05-29

申请人： Wayne L. Stahnke ,  Yuji Fujiwara ,  Taro Kawabata ,  Rei Furukawa ,  Takashi Tamaki

发明人： Wayne L. Stahnke ,  Yuji Fujiwara ,  Taro Kawabata ,  Rei Furukawa ,  Takashi Tamaki

IPC分类号： G10G3/04

CPC分类号： G10G3/04

摘要： A hammer sensor incorporated in a keyboard musical instrument monitors a motion of each hammer assembly, and a controller not only determines a hammer velocity and an impact time for generating a set of music data codes representative of a music performance but also measures an actual distance between the hammer sensor and an impact point against a music string on the basis of a forward trajectory and a backward trajectory measured by the hammer sensor; thereby allowing a worker to easily adjust the hammer sensor to an appropriate position.

摘要翻译： 组合在键盘乐器中的锤式传感器监测每个琴槌组件的运动，并且控制器不仅确定用于产生代表音乐表演的一组音乐数据代码的琴槌速度和冲击时间，而且还测量 基于由锤传感器测量的向前轨迹和后向轨迹，对锤音传感器和对音乐弦的撞击点; 从而允许工人容易地将锤传感器调节到适当的位置。

公开(公告)号：US5467135A

公开(公告)日：1995-11-14

申请号：US199630

申请日：1994-02-22

申请人： Yasuhiko Yamane ,  Masakazu Nishino ,  Yuji Fujiwara ,  Toyohiko Matuda

发明人： Yasuhiko Yamane ,  Masakazu Nishino ,  Yuji Fujiwara ,  Toyohiko Matuda

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/46 ,  H04N7/54 ,  H04N7/32

CPC分类号： H04N7/54 ,  H04N19/527 ,  H04N19/59 ,  H04N19/85 ,  H04N19/30

摘要： A method of coding image data with coefficients between fields by increasing the coefficients prior to coding comprising the steps of: (1) detecting a motion vector in a reference field to a sample field to check whether the reference field is zoomed in or out relative to the sample field, data of the reference field being coded based on the sample field; (2) zooming out the reference field when the reference field is zoomed in relative to the sample field, and zooming in the reference field when the reference field is zoomed out relative to the sample field according to the motion vector; and (3) coding the reference field after the reference field has been zoomed according to the motion vector in the second step. In the second step, the reference field may be zoomed out by eliminating pixels that are not adjacent in one of a vertical direction and a horizontal direction.

摘要翻译： 一种通过增加编码之前的系数来对字段之间的系数进行编码的图像数据的方法，包括以下步骤：（1）检测参考字段中的运动矢量到样本字段，以检查参考字段是否相对于 样本场，参考场的数据根据​​样本场进行编码; （2）当参考场相对于采样场放大时缩小参考场，并且当参考场相对于采样场根据运动矢量放大时放大参考场; 以及（3）在第二步骤中根据运动矢量对参考场进行缩放之后对参考场进行编码。 在第二步骤中，可以通过去除在垂直方向和水平方向之一中不相邻的像素来缩小参考场。

公开(公告)号：US5451708A

公开(公告)日：1995-09-19

申请号：US57619

申请日：1993-05-05

申请人： Yuji Fujiwara ,  Kiyoshi Kawamura ,  Tsutomu Sasaki

发明人： Yuji Fujiwara ,  Kiyoshi Kawamura ,  Tsutomu Sasaki

IPC分类号： G10C3/16 ,  G10F1/02 ,  G11B31/02

CPC分类号： G10F1/02

摘要： A controller module associated with a mechanical piano memorizes a plurality sets of parameters produced from detected trajectories of depressed keys in a floppy disk in a recording mode of operation, and restores the trajectories on the basis of the sets of parameters for driving an actuator array associated with a keyboard in a playback mode, thereby exactly reproducing a music without sacrifice of the memory capacity.

摘要翻译： 与机械钢琴相关联的控制器模块在记录操作模式中存储从软盘中的按压键的检测轨迹产生的多组参数，并且基于用于驱动相关联的致动器阵列的参数集来恢复轨迹 使用键盘处于回放模式，从而在不牺牲存储器容量的情况下精确地再现音乐。