公开(公告)号：US07750973B2

公开(公告)日：2010-07-06

申请号：US10485203

申请日：2002-11-11

申请人： Hiromi Nakase ,  Shinji Takemoto ,  Yukio Shimamura ,  Akiyuki Noda ,  Katsuyuki Taguchi

发明人： Hiromi Nakase ,  Shinji Takemoto ,  Yukio Shimamura ,  Akiyuki Noda ,  Katsuyuki Taguchi

IPC分类号： H04N7/01 ,  H04N11/20 ,  H04N5/91 ,  G06F3/00

CPC分类号： H04N7/01 ,  H04N5/765 ,  H04N5/772 ,  H04N5/9201 ,  H04N7/0112

摘要： A pickup 1 generates a video signal based on an arbitrarily set frame rate. A frame rate converter 2 converts a frame rate of the video signal output from the pickup 1 into a predetermined frame rate. Frame rate conversion information output units 6 and 4 output information on frame rate conversion in a manner corresponding to a video signal after the frame rate conversion.

摘要翻译： 拾取器1基于任意设置的帧速率产生视频信号。 帧速率转换器2将从拾取器1输出的视频信号的帧速率转换为预定的帧速率。 帧速率转换信息输出单元6和4以与帧速率转换之后的视频信号相对应的方式输出关于帧速率转换的信息。

公开(公告)号：US4644157A

公开(公告)日：1987-02-17

申请号：US471708

申请日：1983-03-03

申请人： Kuniichi Ozawa ,  Yasuhiro Goto ,  Hiromi Nakase ,  Shinya Yukino

发明人： Kuniichi Ozawa ,  Yasuhiro Goto ,  Hiromi Nakase ,  Shinya Yukino

IPC分类号： G01D5/245 ,  G01P3/486 ,  G01P13/04 ,  G01D5/34

CPC分类号： G01P3/486 ,  G01D5/2451 ,  G01P13/045

摘要： An optical rotation detecting apparatus for a bushless dc motor detects rotation information of the shaft by the slits arranged at equal pitches along the circumference of a rotary disk and a photoelectric conversion element arranged circumferentially at a pitch which is an integral multiple of the slit pitch and including a first set of photoelectric conversion element pieces arranged alternately with the former thereby generating a first rotation information signal having a frequency proportional to the rotational speed of the shaft and a second rotation information signal having a 90-degree phase difference with the first rotation information signal. The phases of the first and second rotation information signals are compared to detect the direction of rotation of the shaft. The accuracy of rotation information can be further improved by increasing the number of photoelectric conversion element pieces per slit pitch. The photoelectric conversion element includes an amorphous silicon photoelectric conversion element.

摘要翻译： 用于无衬套直流电动机的光学旋转检测装置通过沿旋转盘的圆周等间距布置的狭缝和以每个狭缝间距的整数倍的间距周向布置的光电转换元件来检测轴的旋转信息，以及 包括与前者交替布置的第一组光电转换元件片，从而产生具有与轴的转速成比例的频率的第一旋转信息信号和与第一旋转信息成90度相位差的第二旋转信息信号 信号。 比较第一和第二旋转信息信号的相位以检测轴的旋转方向。 通过增加每个狭缝间距的光电转换元件的数量，可以进一步提高旋转信息的精度。 光电转换元件包括非晶硅光电转换元件。

公开(公告)号：US4525657A

公开(公告)日：1985-06-25

申请号：US587252

申请日：1984-03-07

申请人： Hiromi Nakase ,  Yasuhiro Gotoh ,  Kuniichi Ozawa

发明人： Hiromi Nakase ,  Yasuhiro Gotoh ,  Kuniichi Ozawa

IPC分类号： H02P6/10 ,  H02P6/02

CPC分类号： H02P6/10

摘要： In an electronic commutated motor, ripple of driving torque is perfectly compensated into uniform torque by controlling stator current; therein mechanical 360.degree. angle of rotation of the rotor magnet is divided into e.g. 12 partitioned ranges (of 30.degree.), said compensation being made by repeatedly reading out the same compensation data for the 30.degree. range by utilizing an address counter which is reset at each beginning of said partitioned ranges.

摘要翻译： 在电子换向电机中，通过控制定子电流，将驱动转矩的纹波完美地补偿为均匀的转矩; 其中转子磁体的机械360度旋转角度被分成例如。 12个分区范围（30°），所述补偿是通过利用在所述分区范围的每个开始被重置的地址计数器反复读出30度范围的相同补偿数据来进行的。

公开(公告)号：US5210663A

公开(公告)日：1993-05-11

申请号：US504831

申请日：1990-04-05

申请人： Hiromi Nakase ,  Toshiyuki Kohri

发明人： Hiromi Nakase ,  Toshiyuki Kohri

IPC分类号： G11B5/592 ,  G11B15/18

CPC分类号： G11B15/1833 ,  G11B5/592

摘要： A tracking control device and a magnetic recording and reproducing apparatus including the tracking control device, the tracking control device comprising means for detecting track data recorded on a recording track tracking determining means for determining whether a magnetic head scans a normal recording track on the basis of the output from the track data detecting means and outputting data corresponding to a deviation of the recording track which the magnetic head scans from the normal recording track; means for calculating a deviation of an electrical-to-mechanical converter device on which the magnetic head is mounted from the output data of the tracking determining means such that the magnetic head scans a normal scanning position; and means for driving the electrical-to-mechanical converter device in accordance with the calculated output from the calculating means.

公开(公告)号：US20060018225A1

公开(公告)日：2006-01-26

申请号：US10538182

申请日：2003-12-11

申请人： Hiromi Nakase ,  Hiroyuki Matsuda

发明人： Hiromi Nakase ,  Hiroyuki Matsuda

IPC分类号： G11B7/12

CPC分类号： G11B27/11 ,  G11B20/10

摘要： In the optical disc apparatus according to the present invention, the CPU 113 is operated to execute a control program stored in the ROM 112 to calculate a reproduction time at the time point when the power supply was turned off based on parameters after reading out from the DRAM 111 the parameters at the time point when the power supply was turned off. The CPU 113 is then operated to execute the control program stored in the ROM 112 to produce a control signal to have a display unit, not shown, display the reproduction time thus calculated, and calculate a reproduction position at the time point when the power supply was turned off based on parameters indicative of the address number and produce a control signal to have the reproduction of the reproduction information such as, for example, audio data and image data resumed.

摘要翻译： 在根据本发明的光盘装置中，CPU 113被操作以执行存储在ROM 112中的控制程序，以基于从电源读出之后的参数来计算在关闭电源的时间点的再现时间 DRAM 111在电源关闭的时间点的参数。 然后，操作CPU 113以执行存储在ROM 112中的控制程序，以产生控制信号，使得具有未示出的显示单元显示如此计算的再现时间，并且计算电源的时间点的再现位置 被基于指示地址号的参数关闭，并且产生控制信号以再现诸如音频数据和图像数据的再现信息。

公开(公告)号：US5563855A

公开(公告)日：1996-10-08

申请号：US338326

申请日：1994-11-14

申请人： Hiromi Nakase ,  Wataru Masuda

发明人： Hiromi Nakase ,  Wataru Masuda

IPC分类号： H04N5/781 ,  G11B7/00 ,  G11B7/0025 ,  G11B7/0045 ,  G11B7/14 ,  G11B20/12 ,  G11B20/14 ,  G11B27/10 ,  G11B27/30 ,  H04N5/85 ,  H04N9/797

CPC分类号： G11B7/14 ,  G11B27/105 ,  G11B27/3027 ,  G11B7/0025 ,  H04N9/7973 ,  G11B2220/20 ,  G11B2220/235 ,  H04N5/85

摘要： An optical recording and reproducing apparatus records the audio and video signals to an optical disk by dividing the audio and video signals for one frame into top and bottom audio and video signal components. The top and bottom audio signal component are recorded to a predetermined track on disk sides A and B referenced to the rotation position detection information preformatted thereon, respectively. A mode set panel produces a mode signal for switching the operating mode. A mode determiner produces the head operation mode signal for determining the operating mode of the optical heads based on the signal. Top and bottom heads record and reproduce audio and video signals to or from the two sides A and B, respectively. Top and bottom vertical synchronization mark generators produce the vertical synchronization marks from the sector of the optical disk preformatted for recording and reproducing audio and video signals. Head actuators drive the pickup. The top head operating mode determiner, to which the operating mode data and the vertical synchronization mark signal are input, determines the operating mode of the top optical head. The bottom head mode determiner, to which the operating mode data and the bottom vertical synchronization mark signal are input, determines the operating mode of the bottom optical head.

摘要翻译： 光学记录和再现装置通过将一帧的音频和视频信号分成顶部和底部音频和视频信号分量将音频和视频信号记录到光盘。 顶部和底部音频信号分量被分别记录在盘侧A和B上的预定轨道上，参考其上预先格式化的旋转位置检测信息。 模式设置面板产生用于切换操作模式的模式信号。 模式确定器产生用于基于该信号确定光头的操作模式的头操作模式信号。 顶端和底端分别将音频和视频信号分别记录到双方A和B的双方。 顶部和底部垂直同步标记发生器从预先格式化用于记录和再现音频和视频信号的光盘扇区产生垂直同步标记。 头部执行器驱动拾音器。 操作模式数据和垂直同步标记信号被输入的顶部操作模式确定器确定顶部光学头的操作模式。 操作模式数据和底部垂直同步标记信号输入的底部头模式确定器确定底部光学头的操作模式。

公开(公告)号：US07382703B2

公开(公告)日：2008-06-03

申请号：US10538182

申请日：2003-12-11

申请人： Hiromi Nakase ,  Hiroyuki Matsuda

发明人： Hiromi Nakase ,  Hiroyuki Matsuda

IPC分类号： G11B7/005

CPC分类号： G11B27/11 ,  G11B20/10

摘要： In the optical disc apparatus according to the present invention, the CPU 113 is operated to execute a control program stored in the ROM 112 to calculate a reproduction time at the time point when the power supply was turned off based on parameters after reading out from the DRAM 111 the parameters at the time point when the power supply was turned off. The CPU 113 is then operated to execute the control program stored in the ROM 112 to produce a control signal to have a display unit, not shown, display the reproduction time thus calculated, and calculate a reproduction position at the time point when the power supply was turned off based on parameters indicative of the address number and produce a control signal to have the reproduction of the reproduction information such as, for example, audio data and image data resumed.

摘要翻译： 在根据本发明的光盘装置中，CPU 113被操作以执行存储在ROM 112中的控制程序，以基于从电源读出之后的参数来计算在关闭电源的时间点的再现时间 DRAM 111在电源关闭的时间点的参数。 然后，操作CPU 113以执行存储在ROM 112中的控制程序，以产生控制信号，使得具有未示出的显示单元显示如此计算的再现时间，并且计算电源的时间点的再现位置 被基于指示地址号的参数关闭，并且产生控制信号以再现诸如音频数据和图像数据的再现信息。

公开(公告)号：US5025329A

公开(公告)日：1991-06-18

申请号：US371287

申请日：1989-06-26

申请人： Hiroshi Taniguchi ,  Kanji Kubo ,  Hiromi Nakase

发明人： Hiroshi Taniguchi ,  Kanji Kubo ,  Hiromi Nakase

IPC分类号： H04N5/7826 ,  G11B5/588 ,  G11B5/592 ,  G11B15/467 ,  G11B27/00 ,  G11B27/02 ,  G11B27/024

CPC分类号： G11B15/4678 ,  G11B27/024 ,  G11B5/592 ,  G11B2220/90

摘要： A device is provided for electronically editing and recording new signals on recorded tracks on a recording medium. Reproduction is started from the track just before an editing point and a magnetic head mounted on an electro-mechanical converting element traces the curvature of the reproducing track. A deviation amount of the electro-mechanical converting element upon reproduction of the track just before the editing point is detected by a strain detecting sensor mounted on the electro-mechanical converting element. The detection signal is sampled at a plurality of sample points and stored in a memory circuit. When the head reaches the editing point, the head is set into the recording mode. The electro-mechanical converting element on which the head is mounted is deviated in accordance with the curvature information of the reproducing track just before the editing point and, at the same time, a closed loop control is executed such that a strain pattern in the track scan which is detected by the strain sensor mounted on the converting element coincides with a strain pattern of the strain sensor upon reproduction of the track just before the editing point which was stored. Due to this, the curvature characteristics of the recorded tracks before and after the editing point are made to coincide.

公开(公告)号：US4868692A

公开(公告)日：1989-09-19

申请号：US174399

申请日：1988-03-28

申请人： Hiromi Nakase ,  Kanji Kubo ,  Hiroshi Taniguchi ,  Mitsunobu Furumoto

发明人： Hiromi Nakase ,  Kanji Kubo ,  Hiroshi Taniguchi ,  Mitsunobu Furumoto

IPC分类号： G11B5/592 ,  G11B15/467 ,  G11B21/10

CPC分类号： G11B5/592 ,  G11B15/467 ,  G11B21/10

摘要： A tracking error signal forming circuit is disclosed, which circuit comprises means for obtaining a reproduction time difference between specified signals, each of which is contained in the reproduced signal reproduced by each of at least two heads having different azimuthal angles and mounted on an electro-mechanical converting element; reference value forming means for forming a reference value for the tracking control, operating means for calculating the difference between the reproduction time difference and the reference value or the sum thereof; displacement means for displacing forcedly the electro-mechanical converting element in the positive or negative direction; and maximum value detecting means for detecting the maximum value of at least one of the reproduced signals; the reference value forming means including means for calculating the difference between the reproduction time difference and the fixed reference value or the sum thereof at the point of time at which the maximum value of the reproduced signal is obtained by the maximum value detecting means.