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。

公开(公告)号：US08855509B2

公开(公告)日：2014-10-07

申请号：US13158284

申请日：2011-06-10

申请人： Yuji Fujiwara ,  Yasuhiro Shimura

发明人： Yuji Fujiwara ,  Yasuhiro Shimura

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2039

摘要： A voltage detection apparatus is configured to detect a voltage value applied to a first or second current path of a heater. The voltage detection apparatus detects a first period during which the voltage value of the first or second current path exceeds a threshold voltage as well as a second period during which electric power is supplied to the first current path or the second current path to control the electric power supplied to the first and second current paths. The voltage detection apparatus uses a detection result to detect a state where over-power is supplied to the heater.

摘要翻译： 电压检测装置被配置为检测施加到加热器的第一或第二电流路径的电压值。 电压检测装置检测第一或第二电流路径的电压值超过阈值电压的第一期间以及向第一电流路径或第二电流路径供电的第二期间，以控制电力 电力提供给第一和第二电流路径。 电压检测装置使用检测结果来检测向加热器供给过电力的状态。

公开(公告)号：US20110305469A1

公开(公告)日：2011-12-15

申请号：US13158284

申请日：2011-06-10

申请人： Yuji Fujiwara ,  Yasuhiro Shimura

发明人： Yuji Fujiwara ,  Yasuhiro Shimura

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2039

摘要： A voltage detection apparatus is configured to detect a voltage value applied to a first or second current path of a heater. The voltage detection apparatus detects a first period during which the voltage value of the first or second current path exceeds a threshold voltage as well as a second period during which electric power is supplied to the first current path or the second current path to control the electric power supplied to the first and second current paths. The voltage detection apparatus uses a detection result to detect a state where over-power is supplied to the heater.

摘要翻译： 电压检测装置被配置为检测施加到加热器的第一或第二电流路径的电压值。 电压检测装置检测第一或第二电流路径的电压值超过阈值电压的第一期间以及向第一电流路径或第二电流路径供电的第二期间，以控制电力 电力提供给第一和第二电流路径。 电压检测装置使用检测结果来检测向加热器供给过电力的状态。

公开(公告)号：US08606136B2

公开(公告)日：2013-12-10

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 ,  G03G15/20

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。

公开(公告)号：USD703592S1

公开(公告)日：2014-04-29

申请号：US29469190

申请日：2013-10-08

申请人： Pansoo Kwon ,  Yuji Fujiwara

设计人： Pansoo Kwon ,  Yuji Fujiwara

公开(公告)号：USD698289S1

公开(公告)日：2014-01-28

申请号：US29425105

申请日：2012-06-20

申请人： Pansoo Kwon ,  Yuri Kaneda ,  Yuji Fujiwara

设计人： Pansoo Kwon ,  Yuri Kaneda ,  Yuji Fujiwara

公开(公告)号：USD691517S1

公开(公告)日：2013-10-15

申请号：US29425109

申请日：2012-06-20

申请人： Pansoo Kwon ,  Shinno Kato ,  Yuri Kaneda ,  Yuji Fujiwara

设计人： Pansoo Kwon ,  Shinno Kato ,  Yuri Kaneda ,  Yuji Fujiwara

公开(公告)号：US08350142B2

公开(公告)日：2013-01-08

申请号：US12767281

申请日：2010-04-26

申请人： Yuji Fujiwara ,  Tsutomu Sasaki

发明人： Yuji Fujiwara ,  Tsutomu Sasaki

IPC分类号： G10H1/00

CPC分类号： G10H1/0016 ,  G10F1/02 ,  G10H1/0066 ,  G10H2230/011

摘要： An automatic player piano is equipped with an electronic supporting system, which makes a player learn an optimum pedal stroke to a half pedal region; while the player is practicing a music tune on the piano, the electronic supporting system monitors the damper pedal; when the player starts to depress the damper pedal, the electronic supporting system exerts an assisting force on the damper pedal so as to make the player feel the damper pedal light; when the damper pedal reaches an entrance of the half pedal region, the electronic supporting system removes the assisting force from the damper pedal so that the player feels the damper pedal heavy, whereby the player learns the pedal stroke to the half pedal region through the change of load borne by the player.

摘要翻译： 自动演奏器钢琴配有电子支撑系统，使玩家学习到一个半踏板区域的最佳踏板行程; 当玩家正在钢琴上练习音乐曲线时，电子支撑系统监视制音踏板; 当玩家开始按压减震踏板时，电子支撑系统对减震踏板施加辅助力，使玩家感觉到制动踏板亮; 当阻尼器踏板到达半踏板区域的入口时，电子支撑系统从减震踏板移除辅助力，使得玩家感觉到减震踏板变重，由此玩家通过改变来学习踏板行程到半踏板区域 的负载由玩家承担。

公开(公告)号：US20100288102A1

公开(公告)日：2010-11-18

申请号：US12767281

申请日：2010-04-26

申请人： Yuji Fujiwara ,  Tsutomu Sasaki

发明人： Yuji Fujiwara ,  Tsutomu Sasaki

IPC分类号： G10F1/02

CPC分类号： G10H1/0016 ,  G10F1/02 ,  G10H1/0066 ,  G10H2230/011

摘要： An automatic player piano is equipped with an electronic supporting system, which makes a player learn an optimum pedal stroke to a half pedal region; while the player is practicing a music tune on the piano, the electronic supporting system monitors the damper pedal; when the player starts to depress the damper pedal, the electronic supporting system exerts an assisting force on the damper pedal so as to make the player feel the damper pedal light; when the damper pedal reaches an entrance of the half pedal region, the electronic supporting system removes the assisting force from the damper pedal so that the player feels the damper pedal heavy, whereby the player learns the pedal stroke to the half pedal region through the change of load borne by the player.

摘要翻译： 自动演奏器钢琴配有电子支撑系统，使玩家学习到一个半踏板区域的最佳踏板行程; 当玩家正在钢琴上练习音乐曲线时，电子支撑系统监视制音踏板; 当玩家开始按压减震踏板时，电子支撑系统对减震踏板施加辅助力，使玩家感觉到制动踏板亮; 当阻尼器踏板到达半踏板区域的入口时，电子支撑系统从减震踏板移除辅助力，使得玩家感觉到减震踏板变重，由此玩家通过改变来学习踏板行程到半踏板区域 的负载由玩家承担。

公开(公告)号：US07723598B2

公开(公告)日：2010-05-25

申请号：US12132635

申请日：2008-06-04

申请人： Tsutomu Sasaki ,  Yuji Fujiwara

发明人： Tsutomu Sasaki ,  Yuji Fujiwara

IPC分类号： G09B15/04 ,  G10H1/00

CPC分类号： G09B15/06 ,  G09B15/00

摘要： An electronic proof system is provided in association with an automatic player piano; while a human player is practicing a music tune on the acoustic piano, the electronic proof system monitors the pedals of piano to see whether or not the player brings the pedals to target pedal positions; if the current pedal position is spaced from the target pedal position, the electronic proof system gives rise to fine vibrations of the pedal, and makes the player notice the pedal staying at incorrect pedal position through the tactile impression.

摘要翻译： 与自动演奏器钢琴相关联地提供电子校验系统; 而一个人类玩家正在钢琴上练习音乐曲调，电子校验系统监视钢琴踏板，观察玩家是否将踏板带到目标踏板位置; 如果当前踏板位置与目标踏板位置间隔开，则电子防盗系统产生踏板的微小振动，并使玩家通过触觉印象注意踏板停留在不正确的踏板位置。