公开(公告)号：US5742456A

公开(公告)日：1998-04-21

申请号：US608368

申请日：1996-02-28

申请人： Hisao Kinjo ,  Hiromichi Hirayama ,  Ryo Nishima ,  Morio Miwa ,  Masao Mimata ,  Makoto Suzuki

发明人： Hisao Kinjo ,  Hiromichi Hirayama ,  Ryo Nishima ,  Morio Miwa ,  Masao Mimata ,  Makoto Suzuki

IPC分类号： G11B15/60 ,  G11B15/61 ,  G11B5/588

CPC分类号： G11B15/602 ,  G11B15/61

摘要： A magnetic recording/reproducing apparatus with a drum positioning mechanism is provided. The drum positioning mechanism performs track correction to rotate a tape guide drum about a given axis of rotation according to a travel speed of a magnetic tape to orient a head path of magnetic heads at a given angle relative to a lead member which guides movement of a lower edge of the magnetic tape wrapped about the tape guide drum so that the head path coincides with tracks recorded on the magnetic tape correctly. The drum positioning mechanism also performs lead correction to rotate the lead member through a given angle relative to a drum base to eliminate a shift of the lower edge of the magnetic tape from the lead caused by the track correction so that the lower edge of the magnetic tape follows the lead completely. The magnetic recording/reproducing apparatus may also be employed in a recording mode. In the recording mode, the head path is oriented by the track correction at a preselected angle to the lower edge of the magnetic tape.

摘要翻译： 提供具有鼓定位机构的磁记录/重放装置。 滚筒定位机构执行跟踪校正，以根据磁带的行进速度围绕给定的旋转轴旋转磁带引导鼓，以使磁头的头部路径相对于引导部件引导一个给定的角度 磁带的下边缘缠绕在导带鼓周围，使得磁头路径正确地与记录在磁带上的轨道重合。 滚筒定位机构还执行引导校正，以使引线部件相对于滚筒基座旋转给定的角度，以消除由磁道校正引起的磁带的下边缘与引线的移位，从而磁性的下边缘 磁带完全跟随导线。 磁记录/再现装置也可以用于记录模式。 在记录模式中，磁头路径以磁带的下边缘以预定的角度通过轨道校正定向。

公开(公告)号：US5982590A

公开(公告)日：1999-11-09

申请号：US876110

申请日：1997-06-13

申请人： Hisao Kinjo ,  Hiromichi Hirayama ,  Ryo Nishima

发明人： Hisao Kinjo ,  Hiromichi Hirayama ,  Ryo Nishima

IPC分类号： G11B5/53 ,  G11B15/18 ,  G11B15/60 ,  G11B15/61 ,  G11B5/588 ,  G11B15/16

CPC分类号： G11B5/53 ,  G11B15/1841 ,  G11B15/1875 ,  G11B15/602 ,  G11B15/61

摘要： A magnetic recording and reproducing apparatus includes a tape guide drum (10) composed of a lower stationary drum (10A) supported integrally with a drum shaft (18) and an upper rotary drum (10B), a lead member (12) provided separately from the lower drum and composed of an annular portion (52) having a portion for guiding a reference edge Te of a magnetic tape T and a bottom portion (53). The apparatus further includes pivot means provided inside the drum to support and allow the center axis of the drum to tilt with respect to the annular portion of the tape guide.

摘要翻译： 一种磁记录和再现装置，包括由与鼓轴（18）和上旋转鼓（10B）整体支撑的下固定鼓（10A）构成的导带鼓（10），与 所述下鼓由具有用于引导磁带T的参考边缘Te和底部（53）的部分的环形部分（52）组成。 该装置还包括枢转装置，其设置在滚筒内部以支撑并允许滚筒的中心轴线相对于带导向件的环形部分倾斜。

公开(公告)号：US5726836A

公开(公告)日：1998-03-10

申请号：US511552

申请日：1995-08-04

申请人： Hisao Kinjo ,  Hiromichi Hirayama

发明人： Hisao Kinjo ,  Hiromichi Hirayama

IPC分类号： G11B5/008 ,  G11B5/53 ,  G11B15/18 ,  G11B15/60 ,  G11B15/61 ,  G11B15/665 ,  G11B21/16 ,  G11B5/588

CPC分类号： G11B5/531 ,  G11B15/1841 ,  G11B15/1875 ,  G11B15/602 ,  G11B15/61 ,  G11B15/6653 ,  G11B21/16 ,  G11B5/53 ,  G11B5/0086

摘要： The present invention relates to a magnetic recording/reproducing apparatus capable of performing a fast forward reproduction, a fast backward reproduction, a still picture reproduction and the time-lapse recording. The magnetic recording/reproducing apparatus according to the present invention realizes a preferred reproduced image containing no noise-bar, by correcting deviation of magnetic heads mounted on an upper drum from intended tracks depending on a difference in tape running speed between a recording operation and a reproducing operation by tilting the upper drum about a predetermined pivot point with respect to a lower drum having a lead formed thereon. Further, the magnetic recording/reproducing apparatus according to the present invention realizes a preferred reproduced image containing no noise-bar even for a signal recorded in a narrow track pattern in an extended time recording mode, by correcting a slight separation of the magnetic tape from the lead due to a tilt of the upper drum, by tilting the lower drum.

摘要翻译： 本发明涉及一种能够执行快进再现，快速向后再现，静态图像再现和延时记录的磁记录/重放装置。 根据本发明的磁记录/再现装置通过根据记录操作和记录操作之间的磁带运行速度的差异来校正安装在上磁鼓上的磁头与预期磁道的偏差，实现了不包含噪声条的优选再现图像 通过相对于其上形成有铅的下滚筒围绕预定枢转点倾斜上滚筒来再现操作。 此外，根据本发明的磁记录/再现装置，即使对于在延长时间记录模式中记录在窄轨道图案中的信号，也可以通过校正磁带的轻微分离来实现不含噪声条的优选再现图像 由于上鼓的倾斜引起，通过倾斜下鼓。

公开(公告)号：US5894383A

公开(公告)日：1999-04-13

申请号：US576084

申请日：1995-12-21

申请人： Hisao Kinjo ,  Hiromichi Hirayama

发明人： Hisao Kinjo ,  Hiromichi Hirayama

IPC分类号： G11B5/56 ,  G11B5/588 ,  G11B15/60 ,  G11B15/61

CPC分类号： G11B15/602 ,  G11B15/61

摘要： A magnetic recording and reproducing apparatus with a positioning mechanism for a tape guide drum is provided. The positioning mechanism includes first and second actuators which changes the position of the tape guide drum relative to a direction of travel of a magnetic tape during reproduction for orienting rotary magnetic heads to follow tracks formed on the magnetic tape perfectly if the tracks are curved undesirably. The first actuator is designed to turn the tape guide drum to orient a portion of a rotation plane of the rotary magnetic heads at a tape-entering position where the magnetic tape enters the tape guide drum in a first direction and a portion of the rotation plane at a tape-leaving position where the magnetic tape leaves the tape guide drum in a second direction opposite the first direction. The second actuator is designed to turn the rotation plane of the rotary magnetic head at the tape-entering position and the tape-leaving position in the same direction.

摘要翻译： 提供具有用于导带鼓的定位机构的磁记录和重放装置。 定位机构包括第一和第二致动器，其在再生期间相对于磁带的移动方向相对于磁带的移动方向改变位置，用于使旋转磁头定位成跟踪形成在磁带上的轨道，如果轨道不合乎需要地弯曲，则该致动器完全改变。 第一致动器被设计成转动带引导鼓，以将旋转磁头的旋转平面的一部分定位在磁带进入位置，其中磁带沿着第一方向进入磁带引导鼓，并且旋转平面的一部分 在磁带离开位置处磁带以与第一方向相反的第二方向离开磁带引导鼓。 第二致动器被设计成使旋转磁头的旋转平面在磁带进入位置和磁带离开位置沿相同的方向转动。

公开(公告)号：US6160675A

公开(公告)日：2000-12-12

申请号：US79652

申请日：1998-05-15

申请人： Katsuyuki Shudo ,  Hisao Kinjo ,  Hiromichi Hirayama

发明人： Katsuyuki Shudo ,  Hisao Kinjo ,  Hiromichi Hirayama

IPC分类号： G11B15/60 ,  G11B15/61 ,  G11B15/18

CPC分类号： G11B15/61 ,  G11B15/602

摘要： A magnetic recording and reproducing apparatus has a supply reel and a take-up reel around which a magnetic tape is to be wound. A first tape guide is provided in the vicinity of a rotary head at the supply reel side and a second tape guide in the vicinity of the rotary head at the take-up reel side. The first and second tape guides are movable in directions of a width of the magnetic tape. A detector detects a height of each of the first and second tape guides. A count value corresponding to the detected height of at least either the first or the second tape guide is obtained by a counter. The height of at least either the first or the second tape guide is adjusted so that the count value becomes equal to a reference value. The count value is set to a specific value when the detected height becomes a reference height corresponding to the reference value after the magnetic tape has been wound around the supply and take-up reels.

摘要翻译： 磁记录和再现装置具有供应卷轴和卷绕磁带的收卷卷轴。 第一带引导件设置在供带盘侧的旋转头附近，在卷取卷轴侧的旋转头附近设有第二带引导件。 第一和第二带引导件可以在磁带的宽度方向上移动。 检测器检测第一和第二带引导件中的每一个的高度。 通过计数器获得对应于至少第一或第二带引导件的检测到的高度的计数值。 调整至少第一或第二带引导件的高度，使得计数值等于参考值。 当检测到的高度成为在磁带缠绕在供应和卷取卷轴上之后对应于参考值的基准高度时，将计数值设置为特定值。

公开(公告)号：US5949621A

公开(公告)日：1999-09-07

申请号：US885647

申请日：1997-06-30

申请人： Hisao Kinjo ,  Hiromichi Hirayama

发明人： Hisao Kinjo ,  Hiromichi Hirayama

IPC分类号： G11B5/008 ,  G11B5/53 ,  G11B15/18 ,  G11B15/60 ,  G11B15/61 ,  G11B15/665 ,  G11B21/16 ,  G11B5/588

CPC分类号： G11B5/531 ,  G11B15/1841 ,  G11B15/1875 ,  G11B15/602 ,  G11B15/61 ,  G11B15/6653 ,  G11B21/16 ,  G11B5/53 ,  G11B5/0086

摘要： The magnetic recording/reproducing apparatus of the present invention performs a fast forward reproduction, a fast backward reproduction, a still picture reproduction and the time-lapse recording. To correct for noise-bar the magnetic heads mounted on an upper drum are deviated from intended tracks depending on a difference in tape running speed between a recording operation and a reproducing operation. This is accomplished by tilting the upper drum about a predetermined pivot point with respect to a lower drum having a lead formed thereon. A preferred reproduced image containing no noise-bar is achieved even for a signal recorded in a narrow track pattern in an extended time recording mode, by correcting a slight separation of the magnetic tape from the lead due to a tilt of the upper drum, caused by tilting the lower drum.

摘要翻译： 本发明的磁记录/再现装置执行快进再现，快速向后再现，静止图像再现和延时记录。 为了校正噪音条，根据记录操作和再现操作之间的磁带运行速度的差异，安装在上磁鼓上的磁头偏离预期磁道。 这是通过相对于其上形成有铅的下滚筒围绕预定枢转点倾斜上鼓来实现的。 即使对于以延长的时间记录模式记录在窄轨道图案中的信号，通过由于上鼓的倾斜来校正磁带与引线的轻微分离，也实现了不含噪声条的优选再现图像，导致 通过倾斜下鼓。

公开(公告)号：US5675458A

公开(公告)日：1997-10-07

申请号：US575133

申请日：1995-12-19

申请人： Hisao Kinjo ,  Hiromichi Hirayama

发明人： Hisao Kinjo ,  Hiromichi Hirayama

IPC分类号： G11B5/008 ,  G11B5/53 ,  G11B15/18 ,  G11B15/60 ,  G11B15/61 ,  G11B15/665 ,  G11B21/16 ,  G11B5/588

CPC分类号： G11B5/531 ,  G11B15/1841 ,  G11B15/1875 ,  G11B15/602 ,  G11B15/61 ,  G11B15/6653 ,  G11B21/16 ,  G11B5/53 ,  G11B5/0086

摘要： The present invention relates to a magnetic recording/reproducing apparatus capable of performing a fast forward reproduction, a fast backward reproduction, a still picture reproduction and the time-lapse recording. The magnetic recording/reproducing apparatus according to the present invention realizes a preferred reproduced image containing no noise-bar, by correcting deviation of magnetic heads mounted on an upper drum from intended tracks depending on a difference in tape running speed between a recording operation and a reproducing operation by tilting the upper drum about a predetermined pivot point with respect to a lower drum having a lead formed thereon. Further, the magnetic recording/reproducing apparatus according to the present invention realizes a preferred reproduced image containing no noise-bar even for a signal recorded in a narrow track pattern in an extended time recording mode, by correcting a slight separation of the magnetic tape from the lead due to a tilt of the upper drum, by tilting the lower drum. In a further embodiment, track correction is performed by a tiltable head drum while tape lead correction is performed by a tiltable tape lead guide.

摘要翻译： 本发明涉及一种能够执行快进再现，快速向后再现，静态图像再现和延时记录的磁记录/重放装置。 根据本发明的磁记录/再现装置通过根据记录操作和记录操作之间的磁带运行速度的差异来校正安装在上磁鼓上的磁头与预期磁道的偏差，实现了不包含噪声条的优选再现图像 通过相对于其上形成有铅的下滚筒围绕预定枢转点倾斜上滚筒来再现操作。 此外，根据本发明的磁记录/再现装置，即使对于在延长时间记录模式中记录在窄轨道图案中的信号，也可以通过校正磁带的轻微分离来实现不含噪声条的优选再现图像 由于上鼓的倾斜引起，通过倾斜下鼓。 在另一个实施例中，轨道校正由可倾斜的磁头鼓进行，而磁带引导校正由可倾斜的磁带引导引导件执行。

公开(公告)号：US5504642A

公开(公告)日：1996-04-02

申请号：US126221

申请日：1993-09-23

申请人： Hisao Kinjo ,  Hiromichi Hirayama

发明人： Hisao Kinjo ,  Hiromichi Hirayama

IPC分类号： G11B5/008 ,  G11B5/53 ,  G11B15/18 ,  G11B15/60 ,  G11B15/61 ,  G11B15/665 ,  G11B21/16 ,  G11B5/588

CPC分类号： G11B5/531 ,  G11B15/1841 ,  G11B15/1875 ,  G11B15/602 ,  G11B15/61 ,  G11B15/6653 ,  G11B21/16 ,  G11B5/53 ,  G11B5/0086

摘要： The present invention relates to a magnetic recording/reproducing apparatus capable of performing a fast forward reproduction, a fast backward reproduction, a still picture reproduction and the time-lapse recording. The magnetic recording/reproducing apparatus according to the present invention realizes a preferred reproduced image containing no noise-bar, by correcting deviation of magnetic heads mounted on an upper drum from intended tracks depending on a difference in tape running speed between a recording operation and a reproducing operation by tilting the upper drum about a predetermined pivot point with respect to a lower drum having a lead formed thereon. Further, the magnetic recording/reproducing apparatus according to the present invention realizes a preferred reproduced image containing no noise-bar even for a signal recorded in a narrow track pattern in an extended time recording mode, by correcting a slight separation of the magnetic tape from the lead due to a tilt of the upper drum, by tilting the lower drum.

摘要翻译： 本发明涉及一种能够执行快进再现，快速向后再现，静态图像再现和延时记录的磁记录/重放装置。 根据本发明的磁记录/再现装置通过根据记录操作和记录操作之间的磁带运行速度的差异来校正安装在上磁鼓上的磁头与预期磁道的偏差，实现了不包含噪声条的优选再现图像 通过相对于其上形成有铅的下滚筒围绕预定枢转点倾斜上滚筒来再现操作。 此外，根据本发明的磁记录/再现装置，即使对于在延长时间记录模式中记录在窄轨道图案中的信号，也可以通过校正磁带的轻微分离来实现不含噪声条的优选再现图像 由于上鼓的倾斜引起，通过倾斜下鼓。

公开(公告)号：US5025331A

公开(公告)日：1991-06-18

申请号：US269775

申请日：1988-11-09

申请人： Hiromichi Hirayama ,  Mitsuhiko Hara ,  Masato Mihara ,  Mitsuo Harumatsu

发明人： Hiromichi Hirayama ,  Mitsuhiko Hara ,  Masato Mihara ,  Mitsuo Harumatsu

IPC分类号： G11B15/08 ,  G11B15/43 ,  G11B15/665 ,  G11B15/675 ,  G11B25/06

CPC分类号： G11B15/08 ,  G11B15/43 ,  G11B15/6658 ,  G11B15/67536 ,  G11B25/066

摘要： A tape loading mechanism of a video tape recorder designed to play a standard size tape cassette and a compact size tape casette comprises a chassis carrying a pair of guide grooves at both sides of a guide drum toward a first area of the chassis on which the standard size tape cassette is held at the time of operation of the video tape recorder. The guide grooves are further extended toward a second area of the chassis defined inside the first area on which the compact size tape cassette is held. A pair of loading members are moved along the guide grooves toward their front ends close to the tape cassette when the compact size tape cassette is loaded so that loading poles in the loading members are accepted in a cutout portion formed at a front side of the compact size tape cassette. Further, the loading members are displaced toward the rear end of the guide grooves when the standard size tape cassette is loaded so that the loading poles are accepted in a depressed part formed at a front side of the standard size tape cassette. A light emitting element for detection of the end of the tape is held rotatably on an arm and changes in position responsive to the type of the tape cassette. A deformable member is provided on a tension arm which is connected to a brake member for applying resistance to the rotation of the supply reel, so as to avoid excessive slackening of the brake member when the tension arm is rotated to a position adapted for loading the compact size tape cassette. Further, a half loading arm is provided so as to prevent complete loading of the magnetic tape on the guide drum during high speed transportation of the magnetic tape.

公开(公告)号：US4964001A

公开(公告)日：1990-10-16

申请号：US392858

申请日：1989-08-11

申请人： Hiromichi Hirayama ,  Masato Mihara ,  Mitsuo Harumatsu

发明人： Hiromichi Hirayama ,  Masato Mihara ,  Mitsuo Harumatsu

IPC分类号： G11B15/07 ,  G11B15/32 ,  G11B15/665 ,  G11B25/06

CPC分类号： G11B25/066 ,  G11B15/07 ,  G11B15/32 ,  G11B15/6656

摘要： A compatible recording/reproducing apparatus for selective use with a standard-size tape cassette and compact-size tape cassette. Included is a main chassis having a set of fixed positioned pins for positioning the standard-size tape cassette thereon, and a pair of drive spindles for driving engagement with the reel hubs of the standard-size tape cassette. A floating chassis, much less in size than the main chassis, is mounted thereto for displacement in a direction at right angles with the principal plane of the main chassis. The floating chassis has mounted thereon another set of positioning pins for positioning the compact-size tape cassette thereon, and a drive gear for driving engagement with a driven gear incorporatd with the compact-size tape cassette. Positioned on the floating chassis, the compact-size tape cassette has its magnetic tape transported by the drive gear and one of the drive spindles on the main chassis. When the standard-size tape cassette is loaded in the apparatus, the floating chassis is retracted out of interference with the standard-size tape cassette, permitting the same to be positioned on the set of positioning pins on the main chassis and driven by the pair of drive spindles.