公开(公告)号：US08654228B2

公开(公告)日：2014-02-18

申请号：US13048332

申请日：2011-03-15

申请人： Haruo Isaka ,  Mikio Sakurai ,  Yasuhiro Nakagai

发明人： Haruo Isaka ,  Mikio Sakurai ,  Yasuhiro Nakagai

IPC分类号： H04N3/14 ,  H04N5/335

CPC分类号： G03B17/14 ,  G03B9/36 ,  H04N5/23209 ,  H04N5/3532 ,  H04N5/3572

摘要： An imaging apparatus includes an optical system configured to collect subject light, an imaging device having an electronic front curtain function, configured to receive the subject light to generate an image signal, a data storage unit configured to store an exit pupil distance of the optical system and a correction amount of the exit pupil distance, a mechanical shutter capable of cutting off the subject light passing through the optical system to the imaging device, and a correction unit configured to obtain the exit pupil distance of the optical system and the correction amount of the exit pupil distance from the data storage unit, obtain a corrected exit pupil distance using the obtained exit pupil distance of the optical system and a correction amount of the exit pupil distance, and correct brightness unevenness of the image signal based on the corrected exit pupil distance.

摘要翻译： 一种成像装置，包括：被配置为收集被摄体光的光学系统，具有电子前帘功能的成像装置，被配置为接收被摄体光以产生图像信号;数据存储单元，被配置为存储所述光学系统的出射光瞳距离 以及出射光瞳距离的校正量，能够将通过光学系统的被摄体的光线切断到成像装置的机械快门，以及校正单元，被配置为获得光学系统的出射光瞳距离和校正量 距离数据存储单元的出射光瞳距离，使用所获得的光学系统的出射光瞳距离和出射光瞳距离的校正量来获得校正的出射光瞳距离，以及基于校正出射光瞳的图像信号的校正亮度不均匀 距离。

公开(公告)号：US06424483B1

公开(公告)日：2002-07-23

申请号：US08751480

申请日：1996-11-18

申请人： Kenichi Honjo ,  Haruo Isaka ,  Satoshi Ohyama ,  Masafumi Nishida ,  Yoshio Sakakibara ,  Toshiyuki Kohri ,  Koji Sakurai

发明人： Kenichi Honjo ,  Haruo Isaka ,  Satoshi Ohyama ,  Masafumi Nishida ,  Yoshio Sakakibara ,  Toshiyuki Kohri ,  Koji Sakurai

IPC分类号： G11B1552

CPC分类号： G11B15/125 ,  G11B5/5927 ,  G11B15/087 ,  G11B15/1808 ,  G11B15/1875 ,  G11B15/20 ,  G11B15/4675 ,  G11B15/4678 ,  G11B15/48 ,  G11B15/52 ,  G11B15/54 ,  G11B27/032 ,  G11B27/13 ,  G11B27/322 ,  G11B2220/90

摘要： A magnetic recording and reproducing device according to the present invention operates with steps of moving a magnetic tape having a plurality of tracks per frame and a plurality of control signals recorded thereon, keeping count of the pulses of a frequency generator signal corresponding to the rotation of a capstan motor by a frequency generator counter, resetting the count of the frequency generator pulses by the control signal reproduced by a fixed magnetic head, detecting the track number by the control signal counter reset by a frame reference signal, controlling, at the start, the start timing on the basis of the tape stop position detected by the frequency generator pulse counter and control counter and the reference frame signal from the reference frame signal generator. The device prevents thinning of tracks at the editing point in after-break recording and the disturbance of images immediately after the start. The device does not require a special circuit or complicated software-wise processing, and provides a stabilized slow-reproduced image. Further, in a magnetic recording and reproducing device for intermittent recording, there is no danger of causing thinning to recorded tracks. Thus, a reproduced image of high quality can be obtained.

摘要翻译： 根据本发明的磁记录和再现装置的操作步骤是移动每帧具有多个磁道的磁带和记录在其上的多个控制信号，保持对应于频率发生器信号的旋转的脉冲数 通过频率发生器计数器的主导轴电动机，通过由固定磁头再现的控制信号来复位频率发生器脉冲的计数，通过由帧参考信号重新设置的控制信号计数器检测磁道号， 基于由频率发生器脉冲计数器和控制计数器检测的磁带停止位置的起始定时和来自参考帧信号发生器的参考帧信号。 该设备防止在断点录制时的编辑点的轨道变薄，以及开始后立即对图像的干扰。 该设备不需要特殊电路或复杂的软件处理，并提供稳定的慢再现图像。 此外，在用于间歇记录的磁记录和再现装置中，不存在导致记录轨迹变薄的危险。 因此，可以获得高质量的再现图像。

公开(公告)号：US5546248A

公开(公告)日：1996-08-13

申请号：US40983

申请日：1993-03-31

申请人： Yoshio Sakakibara ,  Makoto Gotou ,  Kazuhiko Kobayashi ,  Haruo Isaka ,  Akihiko Nakamura

发明人： Yoshio Sakakibara ,  Makoto Gotou ,  Kazuhiko Kobayashi ,  Haruo Isaka ,  Akihiko Nakamura

IPC分类号： G11B15/18 ,  G11B15/467 ,  G11B5/584

CPC分类号： G11B15/4678 ,  G11B15/1875

摘要： A reproducing apparatus reproduces information signals recorded multi-segmentally on oblique tracks on a tape. Track ID information recorded in the tracks is detected and compared with a reference frame to obtain a phase difference. The tape transportation is controlled in response to this phase difference to correct a reproduced phase so that it is made to coincide with a reference frame phase, as well as to perform tracking control using a tracking pilot signal recorded on the oblique track together with the information signal.

摘要翻译： 再现装置再现在磁带上的倾斜轨道上多段地记录的信息信号。 检测记录在轨道中的轨道ID信息并将其与参考帧进行比较以获得相位差。 根据该相位差来控制磁带传输，以校正再现相位，使其与参考帧相位一致，以及使用记录在斜轨道上的跟踪导频信号以及信息进行跟踪控制 信号。

公开(公告)号：US4989196A

公开(公告)日：1991-01-29

申请号：US277194

申请日：1988-11-29

申请人： Akihiro Ishikawa ,  Haruo Isaka

发明人： Akihiro Ishikawa ,  Haruo Isaka

IPC分类号： G11B7/005 ,  G11B7/125 ,  G11B20/10 ,  G11B27/36

CPC分类号： G11B7/126 ,  G11B20/10212 ,  G11B27/36 ,  G11B7/005

摘要： An optical information recording apparatus optically records digital information on a recording medium, for example, a disc, a tape and so on. The area of an optical spot cannot be made smaller than a minimum area determined by a numerical aperture of an objective lens and the wave length of a reproducing beam. Consequently, this causes a problem that the code of digital signals often fails to be discriminated in reproducing short pits and/or short pit-intervals which are recorded on the recording medium. The apparatus detects a phase difference between each edge of an input digital signal and each corresponding edge of a digital signal reproduced from the recording medium. The edges of a next input digital signal of the same code construction as that of the first input signal are corrected by a correction amount according to the above phase difference, and such operations are repeated whenever input digital signals are inputted. Consequently the apparatus can decrease errors of code discrimination to minimum and achieve high edge correction. Furthermore, since the input digital signal is delayed by a time interval between the recording by the recording head and the reproducing by the reproducing head, edge correction can be achieved with high precision.

公开(公告)号：US06804072B1

公开(公告)日：2004-10-12

申请号：US09856782

申请日：2001-05-25

申请人： Hiroshi Yohda ,  Masaru Higashionji ,  Haruo Isaka ,  Hideaki Mukae ,  Kouhei Baba ,  Kazunori Umee

发明人： Hiroshi Yohda ,  Masaru Higashionji ,  Haruo Isaka ,  Hideaki Mukae ,  Kouhei Baba ,  Kazunori Umee

IPC分类号： G11B2736

CPC分类号： G11B27/36 ,  G11B5/0086 ,  G11B5/455 ,  G11B5/53 ,  G11B15/087 ,  G11B15/125 ,  G11B15/1808 ,  G11B27/34 ,  G11B2220/90

摘要： A clogging detector used for a VTR to check the recording state of a recording head without using the reproducing head. A test signal of a lower frequency than the erasing frequency is recorded before and after an information signal by means of an erasing head. Before and after recording the information signal by means of the recording head, the test signal is reproduced, the reproduction output is detected by a detecting circuit, and the level of the output is compared with a preset level by a comparing circuit. When the level is lower than the preset level, a warming is issued from a warming circuit, thus preventing a recording failure due to the clogging of the head.

摘要翻译： 用于VTR的堵塞检测器来检查记录头的记录状态，而不使用再现头。 通过擦除头在信息信号之前和之后记录比擦除频率低的测试信号。 在通过记录头记录信息信号之前和之后，再现测试信号，由检测电路检测再现输出，并通过比较电路将输出电平与预设电平进行比较。 当电平低于预设电平时，从加热电路发出升温，从而防止由于头部堵塞而引起的记录故障。

公开(公告)号：US5490017A

公开(公告)日：1996-02-06

申请号：US112657

申请日：1993-08-27

申请人： Akihiko Nakamura ,  Yoshio Sakakibara ,  Makoto Gotou ,  Haruo Isaka ,  Kazuhiko Kobayashi

发明人： Akihiko Nakamura ,  Yoshio Sakakibara ,  Makoto Gotou ,  Haruo Isaka ,  Kazuhiko Kobayashi

IPC分类号： G11B15/18 ,  G11B15/467 ,  G11B15/48

CPC分类号： G11B15/4678 ,  G11B15/1808

摘要： A signal reproducing apparatus, which reproduces data from a tape in which data and a pilot signal for tracking have been recorded In oblique tracks, includes a tape driver for running the tape in the longitudinal direction, a rotary head for rotating and scanning the tape to produce reproduction signals, a reference generator for generating a reference signal which Is the rotation standard of the rotary head, a tracking error detector for producing a tracking error signal from the pilot signal contained in the reproduction signals, and a timing controller for controlling the start timing of tape running of the tape driver with respect to the reference signal, on the basis of the tracking error signal and reference signal in the stopped state of tape running.

摘要翻译： 一种信号再现装置，其中记录了用于跟踪的数据和导频信号已被记录的磁带的数据。在斜轨道中，包括用于在纵向方向上运行磁带的磁带驱动器，用于旋转和扫描磁带的旋转磁头 产生再现信号，用于产生作为旋转磁头的旋转标准的参考信号的参考发生器，用于从包含在再现信号中的导频信号产生跟踪误差信号的跟踪误差检测器，以及用于控制开始的定时控制器 基于在磁带运行的停止状态下的跟踪误差信号和参考信号，磁带驱动器相对于参考信号的磁带运行的定时。

公开(公告)号：US5313338A

公开(公告)日：1994-05-17

申请号：US865584

申请日：1992-04-09

申请人： Kei Ichikawa ,  Haruo Isaka ,  Yoshio Sakakibara ,  Makoto Gotou

发明人： Kei Ichikawa ,  Haruo Isaka ,  Yoshio Sakakibara ,  Makoto Gotou

IPC分类号： G11B15/467 ,  G11B27/032 ,  G11B27/036 ,  G11B27/10 ,  G11B27/13 ,  G11B27/30 ,  G11B5/584

CPC分类号： G11B15/4677 ,  G11B15/4678 ,  G11B27/036 ,  G11B27/13 ,  G11B27/3009 ,  G11B2220/216 ,  G11B2220/90 ,  G11B2220/913 ,  G11B27/032 ,  G11B27/10

摘要： An editing apparatus for use with a tape-form recording medium is provided in which, according to a positioning signal and a tracking pilot signal multiplex-recorded into the first recording area of each track of the recording medium which consists of a plurality of recording areas separated from each other by gaps, a pilot sampling signal for determining the timing of sampling and an editing timing signal for determining the recording location in a desired recording area following the first recording area are produced. After the tracking control is executed through sampling the tracking pilot signals from adjacent tracks at the timing of the pilot sampling signal, a data signal is recorded into the desired recording area after the first recording area according to the editing timing signal.

摘要翻译： 提供了一种与带式记录介质一起使用的编辑装置，其中根据多路复用记录在由多个记录区域组成的记录介质的每个轨道的第一记录区域中的定位信号和跟踪导频信号 通过间隙彼此分离，产生用于确定采样定时的导频采样信号和用于确定跟随第一记录区域的期望记录区域中的记录位置的编辑定时信号。 在通过在导频采样信号的定时对来自相邻磁道的跟踪导频信号进行跟踪控制，根据编辑定时信号将数据信号记录在第一记录区之后的期望记录区域中。

公开(公告)号：US5115422A

公开(公告)日：1992-05-19

申请号：US370745

申请日：1989-06-20

申请人： Akihiro Ishikawa ,  Haruo Isaka ,  Yoshio Sakakibara

发明人： Akihiro Ishikawa ,  Haruo Isaka ,  Yoshio Sakakibara

IPC分类号： G11B19/28 ,  G11B7/085

CPC分类号： G11B7/08505

摘要： An information reproducing apparatus detects a reproducing area on a disk having information recorded thereon at an approximately constant linear velocity. A reproduced signal is generated by rotating the disk mounted on a shaft of a motor, and reading out the information recorded on the rotating disk with an information reproducing head. A frequency detecting circuit generates a frequency signal indicative of the number of rotations of the motor. This frequency signal is compared with the reproduced signal to detect the number of pulses of the reproduced signal contained in one period of the frequency signal. A reproducing area on the disk is detected by comparing the detected number of pulses with a predetermined value, since this number of pulses has a value corresponding to a radial position on the disk.

摘要翻译： 信息再现装置以大致恒定的线速度检测在其上记录有信息的盘上的再现区域。 通过旋转安装在电动机的轴上的盘，并且利用信息再现头读出记录在旋转盘上的信息来产生再现信号。 频率检测电路产生表示电动机的转数的频率信号。 该频率信号与再现信号进行比较，以检测包含在频率信号的一个周期中的再现信号的脉冲数。 通过将检测到的脉冲数与预定值进行比较来检测盘上的再现区域，因为该脉冲数具有对应于盘上径向位置的值。

公开(公告)号：US4785441A

公开(公告)日：1988-11-15

申请号：US4139

申请日：1987-01-16

申请人： Shinichi Tanaka ,  Haruo Isaka ,  Hiroshi Yasuda ,  Toshiki Itoi

发明人： Shinichi Tanaka ,  Haruo Isaka ,  Hiroshi Yasuda ,  Toshiki Itoi

IPC分类号： G11B7/095 ,  G11B7/09 ,  G11B7/00

CPC分类号： G11B7/094 ,  G11B7/0901 ,  G11B7/0909

摘要： Disclosed herein is an optical information reproducing apparatus having a phase difference tracking system which is free from an influence of a tangential phase difference of output signals from a photodetector. The photodetector comprises first through fourth photocells which are respectively disposed at first through fourth quadrants defined by a first straight line parallel to an information track image and a second straight line perpendicular to the first straight line. Output signals of the first and second photocells are delayed for a specified time by respective first and second delaying circuits. Output signals of the first delaying circuit and the third photocell are added by a first adder, and output signals of the second delaying circuit and the fourth photocell are added by a second adder. A phase comparator produces a tracking error signal from a phase difference between output signals of the first and second adders. Alternatively, a first phase comparator produces a phase difference between the output signals of the first and second photocells, and/or a second comparator produces a phase difference between the output signals of the third and fourth photocells. At least one of output signals of the first and second comparator is used for producing a tracking error signal.

摘要翻译： 本文公开了一种具有相位差跟踪系统的光信息再现装置，其不受来自光电检测器的输出信号的切向相位差的影响。 光电检测器包括第一至第四光电池，它们分别设置在第一至第四象限之间，第四象限由平行于信息轨道图像的第一直线和垂直于第一直线的第二直线限定。 第一和第二光电管的输出信号由相应的第一和第二延迟电路延迟指定的时间。 第一延迟电路和第三光电池的输出信号由第一加法器相加，第二延迟电路和第四光电管的输出信号由第二加法器相加。 相位比较器从第一和第二加法器的输出信号之间的相位差产生跟踪误差信号。 或者，第一相位比较器产生第一和第二光电池的输出信号之间的相位差，和/或第二比较器产生第三和第四光电池的输出信号之间的相位差。 使用第一和第二比较器的至少一个输出信号来产生跟踪误差信号。

公开(公告)号：US5953482A

公开(公告)日：1999-09-14

申请号：US937303

申请日：1997-09-22

申请人： Kouhei Suzuki ,  Haruo Ohta ,  Hideaki Mukae ,  Jun Takeuchi ,  Haruo Isaka

发明人： Kouhei Suzuki ,  Haruo Ohta ,  Hideaki Mukae ,  Jun Takeuchi ,  Haruo Isaka

IPC分类号： G11B5/008 ,  G11B5/53 ,  G11B15/12 ,  G11B15/18 ,  G11B27/032 ,  G11B27/036 ,  H04N5/7826 ,  H04N5/93

CPC分类号： H04N5/78263 ,  G11B15/125 ,  G11B15/1875 ,  G11B27/036 ,  G11B5/0086 ,  G11B5/531 ,  G11B2220/90 ,  G11B27/032

摘要： A magnetic recording/reproducing apparatus is provided in which among diametrically oppositely disposed heads, a recording head and an erasing head of a same channel are disposed adjacently to each other. The recording head is disposed so as to precede by two tracks the erasing head with respect to a direction of cylinder rotation, when insert-editing, using a reproduced signal obtained by the recording head, erase and record timing setting and head tracking are performed and an erasing current is not applied during the reproduction by the recording head. The reproducing heads are disposed so as to be angularly apart by about 90 degrees from the recording and erasing heads, and a rotary transformer for reproduction is applied with a shield measure and then, formed as a core independently at an upper portion of the cylinder. In addition, more narrow tracks are compatibly reproduced by the recording head.