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21. 发明授权

US06245985B1 Data converter for enhancing resolution, method for converting data codes and keyboard musical instrument equipped with the data converter 有权
标题翻译：用于增强分辨率的数据转换器，用于转换数据代码的方法和配备有数据转换器的键盘乐器
公开(公告)号：US06245985B1
公开(公告)日：2001-06-12
申请号：US09419621
申请日：1999-10-15
申请人： Tsutomu Sasaki , Tomoyuki Ura , Yuji Fujiwara
发明人： Tsutomu Sasaki , Tomoyuki Ura , Yuji Fujiwara
IPC分类号： G10H500
CPC分类号： G10F1/02
摘要： An automatic player piano has key sensors for producing digital key position signals representative of current key positions and a recording unit for producing pieces of music data information on the basis of the key motions; however, the key sensors have individualities, and vary the values of the digital key position signals in different ranges, respectively; the recording unit selects different components bits from each of the digital key position signal depending upon the value at a reference point so as to make the difference between the ranges small.
摘要翻译：自动演奏器钢琴具有用于产生代表当前键位置的数字键位置信号的键传感器和用于根据键运动产生音乐数据信息的记录单元; 然而，关键传感器具有个性，并且分别改变不同范围内的数字键位置信号的值; 记录单元根据参考点处的值从每个数字键位置信号中选择不同的分量位，以使得范围之间的差小。

22. 发明授权

US5978201A Design for solenoid driving circuit based on regulations of current ripple and solenoid effective time constant for driving keys of a player piano 失效
标题翻译：根据电流纹波和电磁线圈有效时间常数规定的电磁阀驱动电路的设计，用于驾驶演奏者钢琴的钥匙
公开(公告)号：US5978201A
公开(公告)日：1999-11-02
申请号：US12063
申请日：1998-01-22
申请人： Yuji Fujiwara , Taro Kawabata , Yasuhiko Oba
发明人： Yuji Fujiwara , Taro Kawabata , Yasuhiko Oba
IPC分类号： G10F1/02 , G10C3/20 , G10H1/00 , H01H47/32 , H01H47/22
CPC分类号： G10C3/20 , H01H47/325
摘要： A solenoid driving circuit contains solenoids, each of which is driven to produce a magnetic field for driving each of keys of a player piano. A NPN transistor is provided to allow or block a flow of current across each solenoid. The solenoid is connected between a DC power source for providing a source voltage and a collector of the NPN transistor whose emitter is grounded. A drive signal, which is subjected to pulse-width modulation, is supplied to a base of the NPN transistor, so that the NPN transistor is switched over between ON and OFF. A diode is introduced to provide prescribed forward voltage for attenuation of the current across the solenoid when the NPN transistor is turned OFF. Herein, an anode of the diode is connected to a connection between the solenoid and NPN transistor, while a cathode of the diode is connected to a cathode of a zener diode having prescribed reverse voltage. An anode of the zener diode is connected to the DC power source. An effective time constant of the solenoid is represented in a mathematical form using the forward voltage, reverse voltage and source voltage as well as a real time constant of the solenoid. So, the solenoid driving circuit designed in such a way that the effective time constant of the solenoid is sufficiently small as compared to a maximum value of an operating frequency of the key of the player piano (i.e., action cutoff frequency of the player piano).
摘要翻译：螺线管驱动电路包括螺线管，每个螺线管被驱动以产生用于驱动演奏者钢琴的每个键的磁场。提供NPN晶体管以允许或阻止跨越每个螺线管的电流。螺线管连接在用于提供源极电压的直流电源和发射极接地的NPN晶体管的集电极之间。经受脉冲宽度调制的驱动信号被提供给NPN晶体管的基极，使得NPN晶体管在导通和截止之间切换。当NPN晶体管截止时，引入二极管以提供规定的正向电压，以减小电磁线圈上的电流。这里，二极管的阳极连接到螺线管和NPN晶体管之间的连接，而二极管的阴极连接到具有规定的反向电压的齐纳二极管的阴极。齐纳二极管的阳极连接到直流电源。使用正向电压，反向电压和电源电压以及螺线管的实时常数以数学形式表示螺线管的有效时间常数。因此，螺线管驱动电路设计成使得螺线管的有效时间常数与演奏者钢琴的键的操作频率的最大值（即，演奏者钢琴的动作截止频率）相比足够小，。

23. 发明授权

US5919030A Electric fan 失效
标题翻译：电扇
公开(公告)号：US5919030A
公开(公告)日：1999-07-06
申请号：US823756
申请日：1997-03-25
申请人： Makoto Iwatake , Hideki Ochi , Yuji Fujiwara , Hideya Tsuchida
发明人： Makoto Iwatake , Hideki Ochi , Yuji Fujiwara , Hideya Tsuchida
IPC分类号： F04D29/66
CPC分类号： F04D29/665
摘要： An electric fan comprises: a radial impeller for expelling the air trapped therein out of the impeller; a diffuser having a multiplicity of air passages separated by air guides, the air passages adapted to receive the air expelled from the impeller; a fan case for covering the impeller and the air guides; at least one throughhole which is formed in the fan case for each of the air passages; and a silencer equipped with a multiplicity of silencer cavities each having a predetermined volume and communicating with a corresponding one of the air passages, the silencer covering the fan case. The silencer is provided either on top of or beneath the fan case. Because the volumes of these silencer cavities may be chosen arbitrarily such that the silencer cavities may absorb noise caused by the interference between the impeller and the air passages, even audible noise may be suppressed sufficiently.
摘要翻译：一种电动风扇，包括：一个径向叶轮，用于将从叶轮中捕获的空气排出; 扩散器，其具有由空气引导件分开的多个空气通道，所述空气通道适于接收从叶轮排出的空气; 用于覆盖所述叶轮和所述空气引导件的风扇壳体; 至少一个通孔，其形成在风扇壳体中，用于每个空气通道; 以及具有多个消音器空腔的消音器，每个消音器腔具有预定的体积并且与相应的一个空气通道连通，所述消声器覆盖所述风扇壳体。消音器设置在风扇外壳的上方或下方。因为这些消声腔的体积可以任意选择，使得消声器腔可以吸收由叶轮和空气通道之间的干扰引起的噪声，所以甚至可以充分抑制可听见的噪声。

24. 发明授权

US5677981A Video signal recording apparatus which receives a digital progressive scan TV signal and switches the progressive signal frame by frame alternately 失效
标题翻译：视频信号记录装置，其接收数字逐行扫描TV信号，并逐帧切换逐行信号
公开(公告)号：US5677981A
公开(公告)日：1997-10-14
申请号：US490326
申请日：1995-06-14
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 , H04N7/01 , H04N7/06
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，并且切换逐行扫描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。

25. 发明申请

US20130238675A1 INFORMATION PROCESSING APPARATUS, IMAGE FILE MANAGEMENT METHOD AND STORAGE MEDIUM 审中-公开
标题翻译：信息处理设备，图像文件管理方法和存储介质
公开(公告)号：US20130238675A1
公开(公告)日：2013-09-12
申请号：US13615032
申请日：2012-09-13
申请人： Munehisa Tomioka , Yuji Fujiwara , Hiroshi Nakajima
发明人： Munehisa Tomioka , Yuji Fujiwara , Hiroshi Nakajima
IPC分类号： G06F17/30
CPC分类号： G06F8/63
摘要： According to one embodiment, an information processing apparatus applied to a client management system managing desktop environments of client terminals comprises a first controller and a second controller. The first controller controls creation processing for first image files which are disk image files for the desktop environments and contain no information unique to the client terminals and difference files for formation of second image files respectively containing information unique to the client terminals based on the first image files. The second controller controls deletion processing for the difference file for which the second image file is completely acquired by a corresponding client terminal.
摘要翻译：根据一个实施例，应用于管理客户终端的桌面环境的客户端管理系统的信息处理设备包括第一控制器和第二控制器。第一控制器控制第一图像文件的创建处理，这些图像文件是用于桌面环境的磁盘映像文件，并且不包含客户终端唯一的信息和用于形成分别包含基于第一图像的客户终端唯一的信息的第二图像文件的差分文件文件。第二控制器控制由对应的客户终端完全获取第二图像文件的差分文件的删除处理。

26. 发明申请

US20120005677A1 Computing Machine and Method for Controlling Computing Machine 审中-公开
标题翻译：计算机控制计算机与方法
公开(公告)号：US20120005677A1
公开(公告)日：2012-01-05
申请号：US13100814
申请日：2011-05-04
申请人： Yuji Fujiwara
发明人： Yuji Fujiwara
IPC分类号： G06F9/455
CPC分类号： G06F9/45558 , G06F8/65 , G06F11/1438 , G06F2201/815
摘要： According to one embodiment, a computing machine includes an activation module configured to activate, in a first mode, a virtual machine using a first virtual storage includes a basic virtual storage file, an update differential virtual storage file, and a change differential virtual storage file, a allocating module configured to allocate a second virtual storage includes a data storage virtual storage file to the virtual machine, and a changing module configured to change the updating portion data in the update differential virtual storage file to unchanged portion data indicating a unchanged portion of the basic virtual storage file when the virtual machine is terminated, and to delete the updating data from the differential information in the update differential virtual storage file.
摘要翻译：根据一个实施例，计算机包括激活模块，所述激活模块被配置为使用第一虚拟存储器以第一模式激活虚拟机，所述第一虚拟存储器包括基本虚拟存储文件，更新差分虚拟存储文件和改变差分虚拟存储文件配置为分配第二虚拟存储器的分配模块包括数据存储虚拟存储文件到虚拟机，以及变更模块，被配置为将更新差分虚拟存储文件中的更新部分数据改变为未表示未改变部分的未修改部分数据虚拟机终止时的基本虚拟存储文件，以及从更新差分虚拟存储文件中的差分信息中删除更新数据。

27. 发明申请

US20110280597A1 VOLTAGE DETECTION DEVICE AND IMAGE HEATING DEVICE 有权
标题翻译：电压检测装置和图像加热装置
公开(公告)号：US20110280597A1
公开(公告)日：2011-11-17
申请号：US13093231
申请日：2011-04-25
申请人： Yasuhiro Shimura , Yuji Fujiwara
发明人： Yasuhiro Shimura , Yuji Fujiwara
IPC分类号： G03G15/00 , G01R19/00
CPC分类号： H02M1/10 , G01R19/165 , G03G15/2039 , G03G15/5004
摘要： The voltage detection device includes a first voltage detection part for detecting whether or not a time period ratio during which a voltage of an AC power supply is equal to or larger than a first threshold value is equal to or larger than a first ratio and a second voltage detection part for detecting whether or not a time period ratio during which the voltage of the AC power supply is lower than the first threshold value and equal to or larger than a second threshold value is equal to or larger than a second ratio higher than the first ratio, and determines whether the voltage of the AC power supply is a first commercial voltage or a second commercial voltage lower than the first commercial voltage based on results obtained by the first voltage detection part and by the second voltage detection part.
摘要翻译：电压检测装置包括：第一电压检测部，其检测交流电源的电压等于或大于第一阈值的时间段比率是否等于或大于第一比率;第二电压检测部分，电压检测部分，用于检测交流电源的电压是否低于第一阈值并且等于或大于第二阈值的时间段比率等于或大于比第二阈值高的第二比率基于由第一电压检测部分和第二电压检测部分获得的结果，确定交流电源的电压是否是低于第一商用电压的第一商用电压或第二商业电压。

28. 外观设计

USD615465S1 Front bumper for an automobile 有权
公开(公告)号：USD615465S1
公开(公告)日：2010-05-11
申请号：US29342293
申请日：2009-08-21
申请人： Yuji Fujiwara , Tatsuya Takei
设计人： Yuji Fujiwara , Tatsuya Takei

29. 发明申请

US20090084248A1 MUSIC PERFORMANCE SYSTEM FOR MUSIC SESSION AND COMPONENT MUSICAL INSTRUMENTS 有权
标题翻译：用于音乐会和音乐音乐仪器的音乐表演系统
公开(公告)号：US20090084248A1
公开(公告)日：2009-04-02
申请号：US12203191
申请日：2008-09-03
申请人： Rei FURUKAWA , Yuji Fujiwara
发明人： Rei FURUKAWA , Yuji Fujiwara
IPC分类号： G10H7/00
CPC分类号： G10H1/0058 , G10H1/344 , G10H2230/011 , G10H2240/175
摘要： Automatic player pianos and internet form a music performance system for a music session on the automatic player pianos through data communication between the automatic player pianos, and a communication time lag and mechanical time lag are unavoidably introduced between the data transmission and the data reception and between the data reception and tone generation; one of or both of the time lags are compensated by employment of an electronic tone generation, presumption of key positions or presumption of key event so that the slave automatic player piano generates the tones almost concurrently with the tones generated through the master automatic player piano.
摘要翻译：自动播放器钢琴和互联网通过自动演奏器钢琴之间的数据通信形成用于自动演奏器钢琴上的音乐会话的音乐表演系统，并且在数据传输和数据接收之间不可避免地引入通信时滞和机械时滞，并且在数据传输和数据接收之间以及数据接收和音调生成; 时间滞后中的一个或两者通过使用电子音调生成，推定键位置或推定键事件来补偿，使得从机自动演奏器钢琴与通过主自动演奏器钢琴产生的音调几乎同时地产生音调。

30. 发明授权

US07390956B2 Automatic player musical instrument, noise suppressor incorporated therein, method used therein and computer program for the method 有权
标题翻译：自动播放器乐器，其中包含噪声抑制器，其中使用的方法和用于该方法的计算机程序
公开(公告)号：US07390956B2
公开(公告)日：2008-06-24
申请号：US10971283
申请日：2004-10-21
申请人： Yuji Fujiwara
发明人： Yuji Fujiwara
IPC分类号： G10F1/02
CPC分类号： G10F1/02
摘要： Black/white keys are selectively moved by key actuators energized with a driving signal in a playback mode, and plunger sensors, which are provided inside of the key actuators, report the measured values of the keystroke to a motion controlling section; since the measured values contain error due to the deformation of the keys, the motion controlling section estimates true values or estimated values of the keystroke by dividing the sum of products between the measured values and weighting factors by a normalizing constant, and compares the estimated values with target values to see whether or not the keys exactly travel on reference trajectories; if the answer is negative, the motion controlling section varies the duty ratio of the driving signal so as to accelerate or decelerate the keys.
摘要翻译：通过在重放模式下用驱动信号激励的关键致动器选择性地移动黑/白键，并且设置在关键致动器内部的柱塞传感器将击键的测量值报告给运动控制部; 由于测量值包含由于键的变形引起的误差，所以运动控制部通过将测量值和加权因子之间的乘积之和除以归一化常数来估计键击的真值或估计值，并将估计值使用目标值来查看键是否精确地在参考轨迹上行进; 如果答案是否定的，则运动控制部分改变驱动信号的占空比，从而加速或减速键。

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