公开(公告)号：US4740940A

公开(公告)日：1988-04-26

申请号：US837287

申请日：1986-03-06

申请人： Shinichi Tanaka ,  Haruo Isaka ,  Yuji Tanaka

发明人： Shinichi Tanaka ,  Haruo Isaka ,  Yuji Tanaka

IPC分类号： G11B7/09 ,  G11B7/095

CPC分类号： G11B7/0948 ,  G11B7/0901

摘要： An optical information read apparatus for optically reading information recorded on a recording medium includes an optical head for producing two detected signals whose phases vary according to a tracking error of the head, and a tracking error detecting circuit for producing a tracking error signal corresponding to a phase difference between the two detected signals, and a tracking controller for controlling the optical head in response to the tracking error signal. The tracking error detecting circuit has a correlation test circuit for checking a correlation between the states of the two detected signals, and for making the tracking error signal substantially invalid when there is no correlation between the states of the two detected signals. Thus, a stable tracking control can be performed.

摘要翻译： 用于光学读取记录在记录介质上的信息的光学信息读取装置包括：光头，用于产生根据磁头的跟踪误差而相位变化的两个检测信号;以及跟踪误差检测电路，用于产生对应于 两个检测信号之间的相位差，以及响应于跟踪误差信号控制光头的跟踪控制器。 跟踪误差检测电路具有用于检查两个检测信号的状态之间的相关性的相关测试电路，并且当两个检测信号的状态之间没有相关性时，使跟踪误差信号基本无效。 因此，可以执行稳定的跟踪控制。

公开(公告)号：US08275251B2

公开(公告)日：2012-09-25

申请号：US12935357

申请日：2009-04-15

申请人： Haruo Isaka ,  Mitsuyoshi Okamoto ,  Kenji Kawazoe ,  Naotake Kitahira ,  Koji Shibuno

发明人： Haruo Isaka ,  Mitsuyoshi Okamoto ,  Kenji Kawazoe ,  Naotake Kitahira ,  Koji Shibuno

IPC分类号： G03B13/34

CPC分类号： G03B17/14 ,  G02B7/08 ,  H04N5/23209 ,  H04N5/23212 ,  H04N5/23258 ,  H04N5/2628

摘要： An interchangeable lens includes a focus lens for changing a focus state of an object image, a driving unit for driving the focus lens, a lens controller for controlling the driving unit so as to move the focus lens forward and backward along the optical axis at a predetermined drive frequency, and a storage unit for storing therein drive frequency information representing a drive frequency at which the driving unit can control. A camera body obtains the drive frequency information from the interchangeable lens and performs control while referring to the drive frequency information.

摘要翻译： 可互换透镜包括用于改变对象图像的聚焦状态的聚焦透镜，用于驱动聚焦透镜的驱动单元，用于控制驱动单元的透镜控制器，以便使聚焦透镜沿着光轴向前和向后移动 以及用于存储表示驱动单元可以控制的驱动频率的驱动频率信息的存储单元。 相机机体从可更换镜头获取驱动频率信息，并参照驱动频率信息进行控制。

公开(公告)号：US20110091194A1

公开(公告)日：2011-04-21

申请号：US12935357

申请日：2009-04-15

申请人： Haruo Isaka ,  Mitsuyoshi Okamoto ,  Kenji Kawazoe ,  Naotake Kitahira ,  Koji Shibuno

发明人： Haruo Isaka ,  Mitsuyoshi Okamoto ,  Kenji Kawazoe ,  Naotake Kitahira ,  Koji Shibuno

IPC分类号： G03B13/34 ,  H04N5/232 ,  G02B7/04

CPC分类号： G03B17/14 ,  G02B7/08 ,  H04N5/23209 ,  H04N5/23212 ,  H04N5/23258 ,  H04N5/2628

摘要： An interchangeable lens (200) has a focus lens (230) for changing focus conditions of an object image, a drive means (233) for driving the focus lens (230), a lens control means (240) for controlling the drive means (233) so as to advance and retract the focus lens (230) along the optical axis at a predetermined drive frequency, and a memory means (242) for storing therein drive frequency information representing a drive frequency which can be controlled by the drive means. A camera body (100) obtains the drive frequency information from the interchangeable lens (200) and performs control while referring to the drive frequency information.

摘要翻译： 可互换透镜（200）具有用于改变被摄体图像的聚焦条件的聚焦透镜（230），用于驱动聚焦透镜的驱动装置（233），用于控制驱动装置的透镜控制装置（240） 233），以便以预定的驱动频率沿着光轴推进和缩回对焦透镜（230），以及用于存储表示可由驱动装置控制的驱动频率的驱动频率信息的存储装置（242）。 照相机主体（100）从可更换镜头（200）获取驱动频率信息，并参照驱动频率信息进行控制。

公开(公告)号：US20060056102A1

公开(公告)日：2006-03-16

申请号：US11268783

申请日：2005-11-08

申请人： Kenichi Honjo ,  Yoshikazu Kato ,  Haruo Isaka ,  Toshiyuki Kori

发明人： Kenichi Honjo ,  Yoshikazu Kato ,  Haruo Isaka ,  Toshiyuki Kori

IPC分类号： G11B5/584 ,  G11B15/52

CPC分类号： G11B15/4676 ,  G11B5/00839 ,  G11B5/5927 ,  G11B15/12

摘要： A sync signal time difference detection circuit detects a time difference of reproduced sync signals reproduced by a first head and a second head having different azimuth angles. Rotation of a capstan motor is controlled in accordance with sync signal time difference information output from the sync signal time difference detection circuit, thereby performing a highly accurate tracking control not affected by jitter or eccentricity.

摘要翻译： 同步信号时差检测电路检测由具有不同方位角的第一头和第二头再现的再现同步信号的时差。 根据从同步信号时差检测电路输出的同步信号时差信息来控制主导轴电机的旋转，由此执行不受抖动或偏心影响的高精度跟踪控制。

公开(公告)号：US06266479B1

公开(公告)日：2001-07-24

申请号：US09242113

申请日：1999-02-09

申请人： Toshiyuki Kohri ,  Haruo Isaka ,  Kenichi Honjo

发明人： Toshiyuki Kohri ,  Haruo Isaka ,  Kenichi Honjo

IPC分类号： H04N5783

CPC分类号： H04N5/9205 ,  H04N5/783 ,  H04N5/9201 ,  H04N7/181

摘要： The present invention is a video signal recording and reproducing apparatus for recording and reproducing video signals (SvN) inputted from a plurality (n) of different cameras (CMn). A frame switcher (2) sequentially selects one of the video signals (SvN) in prescribed order, and identifying signal adders (10a, 10b) add an identifying signal (Sid) representing a corresponding camera number (N) to the selected video signal (SvN) and generate recording signals (Sr1, Sr2). A recording signal processor (11) modulates the recording signals (Sr1, Sr2) and recording magnetic heads (16a, 16b) record them on a magnetic tape (4). Reproducing heads (15a, 15b) reproduce a recorded recording signal (Sr′) from the magnetic tape (4) and a reproducing processor (14) demodulates the signal. A camera number detector (23) detects the identifying signal (Sid) from a demodulated video signal (Sr2′). Memory (24) stores the demodulated video signal (Sr2′) in relation to the detected identifying signal (Sid), thereby allowing high-speed and normal-speed replay of video from a desired video signal source without video signals from a plurality of video signal sources mixed into.

摘要翻译： 本发明是用于记录和再现从多个（n）个不同相机（CMn）输入的视频信号（SvN）的视频信号记录和再现装置。 帧切换器（2）以规定顺序依次选择视频信号（SvN）中的一个，识别信号加法器（10a，10b）将表示相应摄像机号码（N）的识别信号（Sid）加到所选视频信号 SvN）并产生记录信号（Sr1，Sr2）。 记录信号处理器（11）将记录信号（Sr1，Sr2）和记录磁头（16a，16b）记录在磁带（4）上。 再现头（15a，15b）从磁带（4）再现记录的记录信号（Sr'），再现处理器（14）对信号进行解调。 相机号码检测器（23）从解调视频信号（Sr2'）检测识别信号（Sid）。 存储器（24）相对于检测到的识别信号（Sid）存储解调的视频信号（Sr2'），从而允许来自所需视频信号源的视频的高速和正常速度重放，而没有来自多个视频的视频信号 信号源混入。

公开(公告)号：US5754356A

公开(公告)日：1998-05-19

申请号：US612816

申请日：1996-03-22

申请人： Kenichi Honjo ,  Toshihiko Maruoka ,  Haruo Isaka ,  Makoto Gotou ,  Kei Ichikawa ,  Kiyokazu Hashimoto ,  Masafumi Shimotashiro

发明人： Kenichi Honjo ,  Toshihiko Maruoka ,  Haruo Isaka ,  Makoto Gotou ,  Kei Ichikawa ,  Kiyokazu Hashimoto ,  Masafumi Shimotashiro

IPC分类号： G11B15/087 ,  G11B15/18 ,  G11B15/467 ,  G11B5/02 ,  G11B27/10

CPC分类号： G11B15/1875 ,  G11B15/4678

摘要： A magnetic recording and reproducing apparatus includes: a recorder for recording information signals so as to form tracks obliquely on a magnetic tape, and for recording pilot signals so that the frequency may differ between different modes such as SP and LP; a reproducing head for reproducing recorded information; an error detecting circuit for comparing the level difference of pilot signals recorded in both tracks adjacent to the track to be scanned by there producing head and for outputting a tracking error signal; and a controller for controlling the feed of the magnetic tape so that the tracking error signal may be balanced. Preferably, in the LP mode, a pilot signal of a higher frequency than that used in the SP mode is recorded. In a tracking error detector for a magnetic recording and reproducing apparatus for detecting the pilot signal, the reproduced signals are sampled at a frequency at a common multiple of each pilot frequency, a pilot signal is detected, and a tracking error signal is output.

摘要翻译： 一种磁记录和再现装置，包括：用于记录信息信号以便在磁带上倾斜地形成轨道并用于记录导频信号的记录器，使得频率在诸如SP和LP的不同模式之间可能不同; 用于再现记录信息的再现头; 误差检测电路，用于比较由所述制造头在与要扫描的轨道相邻的两个轨道中记录的导频信号的电平差，并输出跟踪误差信号; 以及控制器，用于控制磁带的馈送，使得跟踪误差信号可以被平衡。 优选地，在LP模式中，记录频率高于SP模式中使用的频率的导频信号。 在用于检测导频信号的磁记录和再现装置的跟踪误差检测器中，以每个导频的公倍数的频率对再生信号进行采样，检测导频信号，并输出跟踪误差信号。

公开(公告)号：US5510938A

公开(公告)日：1996-04-23

申请号：US142865

申请日：1993-10-25

申请人： Yoshio Sakakibara ,  Makoto Gotou ,  Haruo Isaka

发明人： Yoshio Sakakibara ,  Makoto Gotou ,  Haruo Isaka

IPC分类号： G11B5/588 ,  G11B15/467 ,  G11B5/584 ,  G11B5/58

CPC分类号： G11B5/588 ,  G11B15/4678

摘要： An information reproducing apparatus for reproducing information recorded on slant information tracks includes magnetic heads mounted on a rotary cylinder. The magnetic heads scan a magnetic tape which has slant information tracks on which tracking pilot signals are formed. A tracking error detector detects the tracking error signal of the magnetic head scanning using the tracking pilot signal recorded on the slant information tracks. The tracking error detector then generates a tracking error signal indicating the amount of the track bending. A control signal generator generates a control signal in response to the tracking error signal for controlling the scanning position of the magnetic head. A tracking controller controls the slant track scanning position of the magnetic head.

摘要翻译： 用于再现记录在倾斜信息轨道上的信息的信息再现装置包括安装在旋转圆筒上的磁头。 磁头扫描具有倾斜信息轨道的磁带，在其上形成跟踪导频信号。 跟踪误差检测器使用记录在倾斜信息轨道上的跟踪导频信号来检测磁头扫描的跟踪误差信号。 跟踪误差检测器然后产生指示轨道弯曲量的跟踪误差信号。 控制信号发生器响应于用于控制磁头的扫描位置的跟踪误差信号产生控制信号。 跟踪控制器控制磁头的倾斜轨迹扫描位置。

公开(公告)号：US5469304A

公开(公告)日：1995-11-21

申请号：US320573

申请日：1994-10-11

申请人： Yoshio Sakakibara ,  Makoto Gotou ,  Haruo Isaka

发明人： Yoshio Sakakibara ,  Makoto Gotou ,  Haruo Isaka

IPC分类号： G11B15/467 ,  G11B15/04 ,  G11B15/473 ,  G11B15/60 ,  G11B27/032 ,  G11B27/036 ,  G11B27/30 ,  H04N5/7826 ,  G11B27/02 ,  G11B5/584 ,  G11B27/10

CPC分类号： G11B15/4738 ,  G11B15/04 ,  G11B15/602 ,  G11B27/036 ,  G11B27/3027 ,  G11B2220/90 ,  G11B27/032

摘要： A tape medium recording and/or reproducing apparatus suited for use in recording or reproducing information on or from a plurality of tracks on a tape medium. Each track has first and second regions defined therein in a direction conforming to the direction of scan. Each first region has a positioning signal recorded therein while a tracking pilot signal is recorded in selected ones of the first regions. The apparatus includes a positioning signal detector for detecting the positioning signal to provide a reproducing position signal, and a reproduction timing generator for generating a reproduction timing signal at a first timing determined by the reproducing position signal. A timing memory is provided to store the length of time from the timing, at which the rotational reference position of a cylinder has been detected, to the first timing. When no positioning signal can be detected, a timing protector generates a pseudo timing signal based on a previously detected timing stored in the timing memory and also for combining the pseudo timing signal with the reproduction timing signal to provide a protection timing signal. A tracking control section performs tracking control in reference to a level determined by the pilot signals sampled by the sample timing signal. The apparatus can perform insert-recording by determining the timing therefor based on the reproduction timing signal.

摘要翻译： 一种适合用于在磁带介质上的多个轨道上记录或再现信息的磁带介质记录和/或再现装置。 每个轨道具有沿着与扫描方向一致的方向限定在其中的第一和第二区域。 每个第一区域具有记录在其中的定位信号，而跟踪导频信号被记录在所选择的第一区域中。 该装置包括用于检测定位信号以提供再现位置信号的定位信号检测器，以及用于在由再现位置信号确定的第一定时产生再现定时信号的再现定时发生器。 提供了一种定时存储器，用于存储从检测到气缸的旋转基准位置的定时到第一定时的时间长度。 当不能检测到定位信号时，定时保护器基于存储在定时存储器中的先前检测到的定时产生伪定时信号，并且还将伪定时信号与再现定时信号组合以提供保护定时信号。 跟踪控制部分参考由采样定时信号采样的导频信号确定的电平进行跟踪控制。 该装置可以通过基于再现定时信号确定其定时来执行插入记录。

公开(公告)号：US5432646A

公开(公告)日：1995-07-11

申请号：US250655

申请日：1994-05-27

申请人： Akihiko Nakamura ,  Haruo Isaka ,  Makoto Gotou

发明人： Akihiko Nakamura ,  Haruo Isaka ,  Makoto Gotou

IPC分类号： G11B27/032 ,  G11B27/036 ,  G11B27/10 ,  G11B27/30 ,  H04N5/92 ,  G11B5/02

CPC分类号： G11B27/3027 ,  G11B27/036 ,  G11B27/107 ,  G11B27/3036 ,  G11B2220/216 ,  G11B2220/90 ,  G11B27/032 ,  H04N5/9206

摘要： A magnetic recording and reproducing apparatus records video signals divided into plural segments in every specific group, and also records index signals accompanying the video signals in different areas on a magnetic tape having oblique tracks. The apparatus also records the time code of at least the video signal as the index signal, and records the same time code in the index areas of at least three continuous plural tracks. The index area for recording the time code is divided into a plurality of small areas in one track, and the same time code is recorded in each small region. The leader code is recorded in the index area for recording at least the time code.

摘要翻译： 磁记录和再现装置记录在每个特定组中划分成多个段的视频信号，并且还在具有倾斜轨道的磁带上的不同区域中记录伴随视频信号的索引信号。 该装置还将至少视频信号的时间码记录为索引信号，并将相同的时间码记录在至少三个连续的多个轨道的索引区域中。 用于记录时间码的索引区域被划分为一个轨道中的多个小区域，并且在每个小区域中记录相同的时间码。 领导代码记录在索引区域中，用于至少记录时间码。

公开(公告)号：US5343338A

公开(公告)日：1994-08-30

申请号：US858004

申请日：1992-03-26

申请人： Shigeki Murata ,  Haruo Isaka ,  Kenji Matsuura ,  Yasushi Sogabe

发明人： Shigeki Murata ,  Haruo Isaka ,  Kenji Matsuura ,  Yasushi Sogabe

IPC分类号： G11B5/53 ,  G11B15/16 ,  G11B15/60 ,  G11B15/61 ,  G11B15/665 ,  G11B15/675 ,  G11B15/18 ,  G11B17/00

CPC分类号： G11B15/675 ,  G11B15/16 ,  G11B15/60

摘要： The present invention purports to provide a tape recording/reproducing apparatus capable of causing a plurality of tapes having different width respectively to travel smoothly and its cassette. The cassette positioning spring 1 gives an appropriate pressing force even in the case that the cassettes have different thicknesses, and the cassettes are respectively fixed at predetermined positions so that the lower edges of the magnetic tape 3a, 3b are positioned at the same height. The flange 9 of the guide post 12 is shifted in an up-and-down direction in response to a magnetic tape width signal detected through the cassette detecting switch 13 or the beginning edge detector 14a, or the ending edge detector 14b, so that even narrow magnetic tape 3a can travel at the predetermined height. Furthermore, by changing the inclined angle and/or the inclined direction of the movable post 10, a downward torsion force is applied to the narrow magnetic tape 3a. In this fashion, magnetic heads to be used are selected in accordance with the magnetic tape width detected by the cassette detecting switch 13 or the beginning edge and the ending edge detectors 14a, 14b.

摘要翻译： 本发明旨在提供一种能够使具有不同宽度的多个带分别平滑行进的带记录/再现装置及其盒。 即使在盒具有不同厚度的情况下，盒定位弹簧1也给出适当的按压力，并且盒被分别固定在预定位置，使得磁带3a，3b的下边缘位于相同的高度。 引导柱12的凸缘9响应于通过盒检测开关13或起始边缘检测器14a或末端边缘检测器14b检测到的磁带宽度信号在上下方向上移位，使得均匀 窄磁带3a可以在预定高度行进。 此外，通过改变可动柱10的倾斜角度和/或倾斜方向，向窄磁带3a施加向下的扭转力。 以这种方式，根据由磁带盒检测开关13或起始边缘和末端边缘检测器14a，14b检测到的磁带宽度来选择要使用的磁头。