公开(公告)号：US3934269A

公开(公告)日：1976-01-20

申请号：US384681

申请日：1973-08-01

申请人： Mitsuo Fujita ,  Naoaki Sakaki

发明人： Mitsuo Fujita ,  Naoaki Sakaki

IPC分类号： G01P1/10 ,  G01P3/481 ,  G01P3/483 ,  H02P23/00 ,  G11B21/04 ,  G11B21/02

CPC分类号： G01P3/483 ,  G01P1/106 ,  G01P3/481 ,  H02P23/186 ,  Y10S388/902 ,  Y10S388/903 ,  Y10S388/915

摘要： The invention provides an apparatus for controlling the rotation of a rotating body in a recording and/or reproducing apparatus. First, the apparatus detects the rotational speed of the rotating body, as it is driven by a DC motor. Detection is in terms of a frequency which is n times the speed, in which n>> 1. Second, there is a detection of the rotational phase of the rotating body. The DC motor is driven to rotate in accordance with a controlling signal obtained by using first and second output error signals responsive to the first and second detections. The DC motor is driven by means for superimposing an AC signal generated with a constant period and the first and second output error signals. The superimposed signals are sliced at a predetermined level to perform "ON" - "OFF" operations and a smooth output to control the driving rotation of the DC motor.

摘要翻译： 本发明提供了一种用于控制记录和/或再现装置中旋转体的旋转的装置。 首先，该装置由直流电动机驱动时，检测旋转体的旋转速度。 以n >> 1的速度的n倍的频率进行检测。其次，检测旋转体的旋转相位。 根据通过使用响应于第一和第二检测的第一和第二输出误差信号而获得的控制信号，驱动DC电动机旋转。 DC电机由用于叠加以恒定周期产生的AC信号和第一和第二输出误差信号的装置驱动。 将叠加的信号以预定电平进行切片，以执行“ON” - “OFF”操作和平滑输出以控制DC电动机的驱动旋转。

公开(公告)号：US4839204A

公开(公告)日：1989-06-13

申请号：US48683

申请日：1987-05-12

申请人： Syuji Yoshino ,  Satoshi Makino ,  Mitsuo Fujita ,  Yukio Shimizu

发明人： Syuji Yoshino ,  Satoshi Makino ,  Mitsuo Fujita ,  Yukio Shimizu

IPC分类号： A47B13/06 ,  A47F5/13 ,  A47G7/04

CPC分类号： A47B13/06 ,  A47F5/13 ,  A47G7/041 ,  Y10T428/1355 ,  Y10T428/1359 ,  Y10T428/24777

摘要： A resin coated metal pipe has a plane surface portion formed with a coating resin as one body. By arranging many resin coated metal pipes in parallel such that the plane surface portions point upward, a lightweight structure, such as a bench, a flower stand, a draining board, and so forth can be assembled easily. Slippery or anti-slippery synthetic resin may be used as a part of or all the plane surface portion having a color different from the coating resin.

摘要翻译： 树脂涂布金属管具有形成有作为一体的涂布树脂的平面部。 通过平行布置许多树脂涂覆的金属管，使得平面表面部分向上指向，可以容易地组装诸如台架，花架，排水板等轻质结构。 滑溜或防滑合成树脂可以用作具有不同于涂层树脂的颜色的平面表面部分或全部。

公开(公告)号：US4295080A

公开(公告)日：1981-10-13

申请号：US94437

申请日：1979-11-15

申请人： Mitsuo Fujita ,  Koji Matsumura

发明人： Mitsuo Fujita ,  Koji Matsumura

IPC分类号： H02P1/22 ,  H02P7/00 ,  H02P7/06 ,  H02P7/288 ,  H02P5/06

CPC分类号： H02P7/2885 ,  H02P7/03

摘要： A system for controlling rotational direction switchover and for variably controlling the rotational speed of a motor comprises a circuit for switching over the rotational direction of the motor, a circuit for supplying rotation driving voltage to the motor thereby to drive it at a speed depending on the rotation driving voltage, a single voltage varying unit for varying voltage continuously, and a control signal generation circuit which receives variable voltage from the voltage varying means to generate a rotational control signal for the rotation driving voltage supplying circuit and further to generate a rotational direction switchover control signal for the switchover circuit. The voltage of the rotation control signal produced by the control signal generation circuit decreasing as the variable voltage approaches a predetermined value, reaching a minimum when the variable voltage coincides with the predetermined voltage, and increasing as the variable voltage goes beyond the predetermined value. The rotational direction switchover control signal is produced by the control signal generation circuit when the variable voltage is substantially the predetermined value.

摘要翻译： 一种用于控制旋转方向切换和用于可变地控制马达的转速的系统包括用于切换马达的旋转方向的电路，用于向马达提供旋转驱动电压的电路，从而以一定速度驱动马达 旋转驱动电压，用于连续变化电压的单个电压变化单元，以及控制信号生成电路，其接收来自电压变化单元的可变电压，生成用于旋转驱动电压供给电路的旋转控制信号，并进一步产生旋转方向切换 切换电路的控制信号。 控制信号发生电路产生的旋转控制信号的电压随着可变电压接近预定值而减小，当可变电压与预定电压一致时达到最小，并且随着可变电压超过预定值而增加。 当可变电压基本上是预定值时，旋转方向切换控制信号由控制信号产生电路产生。

公开(公告)号：US07097238B2

公开(公告)日：2006-08-29

申请号：US10116027

申请日：2002-04-05

申请人： Mitsuo Fujita

发明人： Mitsuo Fujita

IPC分类号： B62D25/20

CPC分类号： B62D25/20 ,  B60N3/06

摘要： A floor panel including a protrusion portion which extends in a transverse direction of a vehicle and crosses a floor tunnel. The protrusion portion ensures a rigidity of the floor panel in the transverse direction of the vehicle. Therefore, it is possible to make a floor panel thinner while maintaining its rigidity. In particular, when a cross portion of a floor tunnel and a protrusion portion is protruded more than any other portion of the floor panel, the rigidity of the floor panel is increased. Further, when the protrusion portion is provided under a front seat and a slope face connects the top of the protrusion portion to floor face, a space under the rear side of the protrusion portion is available for disposing a fuel tank. Therefore, space efficiency is improved. Further, the slope face is available for a rear-seat footrest.

公开(公告)号：US3965483A

公开(公告)日：1976-06-22

申请号：US568255

申请日：1975-04-15

申请人： Hiroshi Katoh ,  Mitsuo Fujita

发明人： Hiroshi Katoh ,  Mitsuo Fujita

IPC分类号： G11B15/665 ,  G11B27/02 ,  G11B15/20 ,  H04N5/78

CPC分类号： G11B15/665

摘要： A tape recording apparatus comprises a first mechanism capable of varying, between a maximum and a minimum length, a tape travel path extending between a recording and reproducing head and a tape take-up roll. A second mechanism controls the first mechanism so that the length of the tape travel path becomes the maximum length at the time of ordinary recording and at the time of editing. The length of the tape travel path becomes the minimum length at the time of a pause mode prior to the editing recording. A third mechanism pulls back the tape by a length equal to the difference between the maximum and minimum lengths, at the time of the pause mode, of the tape path between the tape roll on the tape supply side and the recording and reproducing head. A fourth mechanism detects when the first mechanism reaches substantially maximum tape length at the time of the editing recording mode, and causes the start of editing recording by the recording and reproducing head.

摘要翻译： 磁带记录装置包括能够在最大和最小长度之间改变在记录和再现磁头与磁带卷取辊之间延伸的磁带行进路径的第一机构。 第二机构控制第一机构，使得磁带行进路径的长度成为普通记录时和编辑时的最大长度。 磁带行进路径的长度在编辑记录之前成为暂停模式时的最小长度。 第三机构将磁带拉回长度等于磁带供给侧的磁带和记录和再现磁头之间的磁带路径在暂停模式时的最大和最小长度之差的长度。 第四机构检测第一机构何时在编辑记录模式时达到最大磁带长度，并且通过记录和再现磁头开始编辑记录。

公开(公告)号：US06681076B1

公开(公告)日：2004-01-20

申请号：US09551724

申请日：2000-04-18

申请人： Takeo Ohishi ,  Mitsuo Fujita

发明人： Takeo Ohishi ,  Mitsuo Fujita

IPC分类号： H04N591

CPC分类号： G11B5/0086 ,  G11B15/1875 ,  G11B15/4673 ,  G11B15/52 ,  H04N5/78263 ,  H04N9/7921 ,  H04N9/7973 ,  H04N9/8042

摘要： A first rotational head of a first azimuth angle and a second rotational head of a second azimuth angle are arranged on a rotational drum rotated at a constant rotational speed. Also, input digital signals are processed in a signal recording system to form blocks of digital recording signals, a magnetic tape is moved by a tape driving unit according to an information signal generated in a control unit, and the blocks of digital recording signals and the information signal are recorded on the magnetic tape in a recording operation through the first and second heads alternately tracing the magnetic tape. In a reproducing operation, the signals are read through the first and second heads and are reproduced in a signal reproducing system. When the input digital signals are transmitted at a standard data rate, the magnetic tape is rotated at a first traveling speed in the recording and reproducing operations. When the input digital signals are transmitted at a second data rate equal to 1/N (N is a natural number) the standard data rate, the magnetic tape is rotated at a second traveling speed equal to 1/N the first traveling speed in the recording and reproducing operations. Therefore, the input digital signals can be recorded and reproduced regardless of the data rate of the signals.

摘要翻译： 第一方位角的第一旋转头和第二方位角的第二旋转头布置在以恒定转速旋转的旋转滚筒上。 此外，输入数字信号在信号记录系统中被处理以形成数字记录信号块，磁带根据在控制单元中产生的信息信号由磁带驱动单元移动，数字记录信号块和 信息信号通过第一和第二头部交替地跟踪磁带而在记录操作中被记录在磁带上。 在再现操作中，通过第一和第二磁头读取信号，并在信号再现系统中再现。 当以标准数据速率发送输入数字信号时，磁带在记录和再现操作中以第一行进速度旋转。 当以等于1 / N（N是自然数）的标准数据速率的第二数据速率发送输入数字信号时，磁带以等于1 / N的第二行进速度旋转，第一行进速度在 录音和再现操作。 因此，无论信号的数据速率如何，都可以记录和再现输入数字信号。

公开(公告)号：US4396953A

公开(公告)日：1983-08-02

申请号：US210155

申请日：1980-11-25

申请人： Mitsuo Fujita ,  Kazuo Negishi ,  Shigenori Onaka

发明人： Mitsuo Fujita ,  Kazuo Negishi ,  Shigenori Onaka

IPC分类号： H04N5/91 ,  H04N5/931 ,  H04N9/793 ,  H04N9/83 ,  H04N9/491 ,  H04N5/78

CPC分类号： H04N9/7933 ,  H04N5/91 ,  H04N5/9315 ,  H04N9/83

摘要： A color video signal dubbing system comprises a reproducing apparatus and a recording apparatus. The recorded signal is a multiplexed signal of a frequency-modulated luminance signal obtained as the result that a luminance signal separated from the color video signal frequency-modulates a carrier wave to occupy a predetermined frequency band and a frequency-converted carrier chrominance signal obtained by frequency-converting a carrier chrominance signal having a color burst signal which is separated from the color video signal to a band lower than that of the predetermined frequency band. The reproducing apparatus comprises a separation circuit for separating the signal reproduced by the reproducing apparatus into the frequency-modulated luminance signal and the frequency-converted carrier chrominance signal, a level adjusting circuit for adjusting the level of the frequency-converted carrier chrominance signal separated by the separation circuit so that the color burst signal is held to a constant level, a frequency characteristic compensation circuit for compensating for the degradation in the frequency characteristic of the frequency-modulated luminance signal, introduced upon recording and reproducing processes of the frequency-modulated luminance signal separated by the separation circuit, amplitude limiting circuit for limiting the amplitude of the output frequency-modulated luminance signal of the frequency characteristic compensation circuit, and a mixing circuit for mixing the output frequency-modulated luminance signal of the frequency characteristic compensation circuit with the output frequency-converted carrier chrominance signal of the level adjusting means.

摘要翻译： 彩色视频信号复制系统包括再现装置和记录装置。 所记录的信号是由彩色视频信号分离的亮度信号频率调制以占据预定频带而获得的频率调制亮度信号的多路复用信号，并且通过以下方式获得的频率转换载波色度信号： 将具有与彩色视频信号分离的色同步信号的载波色度信号频率转换为低于预定频带的频带的频带。 再现装置包括：一个分离电路，用于将由再现装置再现的信号分离成调频亮度信号和频率转换载波色度信号;电平调节电路，用于调节经频率转换的载波色度信号的电平， 所述分离电路使色同步信号保持在一定水平;频率特性补偿电路，用于补偿调频亮度信号的频率特性的劣化，所述频率特性补偿电路在频率调制亮度的记录和再现处理时引入 由分离电路分离的信号，用于限制频率特性补偿电路的输出频率调制亮度信号的幅度的限幅电路，以及用于混合频率特性补偿电路的输出频率调制亮度信号的混合电路 离子电路与电平调整装置的输出频率转换载波色度信号。

公开(公告)号：US6097876A

公开(公告)日：2000-08-01

申请号：US246099

申请日：1999-02-08

申请人： Takeo Ohishi ,  Mitsuo Fujita

发明人： Takeo Ohishi ,  Mitsuo Fujita

IPC分类号： G11B5/008 ,  G11B15/18 ,  G11B15/467 ,  G11B15/52 ,  H04N5/7826 ,  H04N9/79 ,  H04N9/797 ,  H04N9/804 ,  H04N5/91

CPC分类号： G11B15/4673 ,  G11B15/1875 ,  G11B5/0086 ,  H04N9/8042 ,  G11B15/52 ,  H04N5/78263 ,  H04N9/7921 ,  H04N9/7973

摘要： A first rotational head of a first azimuth angle and a second rotational head of a second azimuth angle are arranged on a rotational drum rotated at a constant rotational speed. Also, input digital signals are processed in a signal recording system to form blocks of digital recording signals, a magnetic tape is moved by a tape driving unit according to an information signal generated in a control unit, and the blocks of digital recording signals and the information signal are recorded on the magnetic tape in a recording operation through the first and second heads alternately tracing the magnetic tape. In a reproducing operation, the signals are read through the first and second heads and are reproduced in a signal reproducing system. When the input digital signals are transmitted at a standard data rate, the magnetic tape is rotated at a first traveling speed in the recording and reproducing operations. When the input digital signals are transmitted at a second data rate equal to 1/N (N is a natural number) the standard data rate, the magnetic tape is rotated at a second traveling speed equal to 1/N the first traveling speed in the recording and reproducing operations. Therefore, the input digital signals can be recorded and reproduced regardless of the data rate of the signals.

摘要翻译： 第一方位角的第一旋转头和第二方位角的第二旋转头布置在以恒定旋转速度旋转的旋转滚筒上。 此外，输入数字信号在信号记录系统中被处理以形成数字记录信号块，磁带根据在控制单元中产生的信息信号由磁带驱动单元移动，数字记录信号块和 信息信号通过第一和第二头部交替地跟踪磁带而在记录操作中被记录在磁带上。 在再现操作中，通过第一和第二磁头读取信号，并在信号再现系统中再现。 当以标准数据速率发送输入数字信号时，磁带在记录和再现操作中以第一行进速度旋转。 当以等于1 / N（N是自然数）的标准数据速率的第二数据速率发送输入数字信号时，磁带以等于1 / N的第二行进速度旋转，第一行进速度在 录音和再现操作。 因此，无论信号的数据速率如何，都可以记录和再现输入数字信号。

公开(公告)号：US4646153A

公开(公告)日：1987-02-24

申请号：US675516

申请日：1984-11-28

申请人： Hisatoshi Fukuda ,  Mitsuo Fujita

发明人： Hisatoshi Fukuda ,  Mitsuo Fujita

IPC分类号： G11B20/02 ,  G11B5/027 ,  H04N5/21 ,  H04N5/93 ,  H04N5/213 ,  H04B1/10

CPC分类号： H04N5/21

摘要： A noise reduction circuit for a video signal, comprises a feedback type comb filter in which an output video signal of a delay circuit which delays a video signal by one or two horizontal scanning periods, is fed back to an input side of the delay circuit through a feedback path, and an equalizer circuit coupled in series with the feedback type comb filter. The feedback path comprises a highpass or bandpass filter circuit and a coefficient multiplier which are coupled in series. The equalizer circuit has a frequency characteristic complementary to an envelope characteristic in a frequency characteristic of the feedback type comb filter.

摘要翻译： 用于视频信号的降噪电路包括反馈型梳状滤波器，其中将视频信号延迟一个或两个水平扫描周期的延迟电路的输出视频信号反馈到延迟电路的输入侧，通过 反馈路径和与反馈型梳状滤波器串联耦合的均衡器电路。 反馈路径包括串联耦合的高通或带通滤波器电路和系数乘法器。 均衡器电路具有与反馈型梳状滤波器的频率特性中的包络特性互补的频率特性。

公开(公告)号：US4361787A

公开(公告)日：1982-11-30

申请号：US205604

申请日：1980-11-10

申请人： Kazuo Negishi ,  Mitsuo Fujita

发明人： Kazuo Negishi ,  Mitsuo Fujita

IPC分类号： G11B15/43 ,  G11B15/48 ,  G11B15/665 ,  H02P23/00 ,  B65H59/38

CPC分类号： G11B15/6655 ,  G11B15/43 ,  G11B15/48 ,  H02P23/20

摘要： A system for controlling the rotation of a motor comprises a detector for detecting the rotation of the motor, frequency discriminator for frequency discriminating the output of the detector, a loop filter comprising resistors and a capacitor which lowers the high-frequency components of the output signal of the frequency discriminator, a switching circuit which is connected to the output side of the loop filter, the switching circuit grounding the output side of the loop filter and discharging the capacitor of the loop filter in a state before starting of the high-speed rotation of the motor, and non-grounding the loop filter in a state in which the motor is undergoing high-speed rotation, and a motor driving circuit which drives the motor in accordance with the output signal of the loop filter through the switching circuit. The capacitor is charged up with a predetermined time constant due to the output of the frequency discriminator upon starting state of the high-speed rotation of the motor and gradually increases the output voltage of the loop filter with the predetermined time constant.

摘要翻译： 用于控制电动机旋转的系统包括用于检测电动机旋转的检测器，用于鉴别检测器输出的鉴频器，包括电阻器和电容器的环路滤波器，其降低输出信号的高频分量 所述开关电路连接到所述环路滤波器的输出侧，所述开关电路将所述环路滤波器的输出侧接地，并且在所述高速旋转开始之前的状态下对所述环路滤波器的电容器进行放电 并且在电动机正在高速旋转的状态下对环路滤波器进行非接地，以及电动机驱动电路，其通过开关电路根据环路滤波器的输出信号来驱动电动机。 由于在电动机的高速旋转的开始状态下输出了鉴频器，电容器被充电了预定的时间常数，并以预定的时间常数逐渐增加了环路滤波器的输出电压。