公开(公告)号：US4403265A

公开(公告)日：1983-09-06

申请号：US252678

申请日：1981-04-09

申请人： Hitoshi Okada ,  Kazuki Takai ,  Katsumi Yamaguchi

发明人： Hitoshi Okada ,  Kazuki Takai ,  Katsumi Yamaguchi

IPC分类号： G11B15/18 ,  G11B15/675 ,  G11B17/00 ,  G11B15/00

CPC分类号： G11B15/67505 ,  G11B15/1883

摘要： A power loading/unloading mechanism for tape record/playback apparatus which comprises a gear driven by a motor, a rack member associated with a tape pack inserted; a partly cut-out gear independent of the rack member operation system and interlocked with a cam member for advancing and retreating a head plate; an engaging gear driven by the motor and disposed so as to engage with the partly cut-out gear; a means for keeping the engaging gear from engagement with teeth of the partly cut-out gear; and an engagement operating means for detecting completion of tape pack loading and for putting the engaging gear into mesh with the teeth of the partly cut-out gear.

摘要翻译： 一种用于磁带记录/播放装置的电力装载/卸载机构，包括由电动机驱动的齿轮，与插入的磁带组相关联的齿条构件; 与齿条构件操作系统无关的部分切割齿轮，并与用于前进和后退头板的凸轮构件互锁; 由电动机驱动并配置成与部分切断的齿轮接合的啮合齿轮; 用于保持接合齿轮不与部分切断齿轮的齿接合的装置; 以及接合操作装置，用于检测胶带包装的完成并将啮合齿轮与部分切断的齿轮的齿啮合。

公开(公告)号：US4227224A

公开(公告)日：1980-10-07

申请号：US17373

申请日：1979-03-05

申请人： Hiroyuki Umezawa ,  Yukio Ito ,  Kazuki Takai ,  Hitoshi Okada

发明人： Hiroyuki Umezawa ,  Yukio Ito ,  Kazuki Takai ,  Hitoshi Okada

IPC分类号： G11B15/18 ,  G11B15/44 ,  G11B15/675 ,  G11B15/24 ,  G11B15/10

CPC分类号： G11B15/442 ,  G11B15/1883 ,  G11B15/67555

摘要： A cassette tape recording/reproducing apparatus which is so adapted that after a cassette is horizontally pushed deep into a pack guide, the pack guide is lowered in a vertical direction to set the cassette in a recording/reproducing position on a bottom plate of the apparatus, which apparatus is characterized in:that an ejecting plate and a slide plate are provided along the pack guide so as to slide in the forward and the backward direction of the apparatus, and a lock plate is provided for locking the ejecting plate and the slide plate in their retired positions, respectively, said lock plate being adapted to lock, at a time, either one of the ejecting plate and the slide plate, preventing the same from moving and allow the other to move forwardly or backwardly;that a power plate is provided also along the pack guide, which plate is movable in the forward and the backward direction of the apparatus, provided with a set spring for normally urging the power plate in the retreating direction, and engageable with the slide plate through a rack-pinion mechanism, and means for releasing the engagement between the slide plate and the power plate when the cassette is ejected is provided;that the slide plate has an ejecting spring for normally urging the slide plate in the advancing direction, the force of which is smaller than that of the set spring provided on the power plate; andthat the ejecting plate is interlocked with a mechanism for lowering or raising the pack guide so that the pack guide is lowered or raised according to the advance or retreat of the ejecting plate.

摘要翻译： 一种盒式磁带记录/再现装置，其适于使得在盒被水平地推入包装导板之后，包装导向件沿垂直方向下降，以将盒子设置在装置的底板上的记录/再现位置 该装置的特征在于，沿着包装导向件沿着装置的前后方向滑动设置弹出板和滑板，并且设置有用于锁定弹射板和滑块的锁定板 分别位于其退役位置，所述锁定板适于同时锁定所述排出板和所述滑板中的任一个，从而防止所述锁定板移动并允许另一个向前或向后移动; 功能板也沿着包装导向器设置，该板可以在装置的前后方向上移动，设置有用于在退回方向上正常地推动动力板的固定弹簧，并且可与滑板通过 提供齿条小齿轮机构，以及用于当所述盒被弹出时释放所述滑板和所述动力板之间的接合的装置; 滑板具有用于在前进方向上正常推动滑板的弹簧，该弹簧的力小于设置在动力板上的固定弹簧的力; 并且排出板与用于降低或升高包装导向件的机构互锁，使得包装导向件根据排出板的前进或后退而降低或升高。

公开(公告)号：US5168487A

公开(公告)日：1992-12-01

申请号：US555628

申请日：1990-07-23

申请人： Kiyoshi Ohsato ,  Toshiki Udagawa ,  Hitoshi Okada

发明人： Kiyoshi Ohsato ,  Toshiki Udagawa ,  Hitoshi Okada

IPC分类号： G11B7/095 ,  G11B7/09

CPC分类号： G11B7/0943 ,  G11B7/0903

摘要： An optical recording and/or reproducing apparatus comprising a light beam generator, a photodetector, an optical path forming device for causing a light beam from the light beam generator to impinge upon an optical disc and for guiding the light beam emanating from the optical disc to the photodector, and a signal generating circuit block operative to obtain based on a detection output obtained from the photodetector a first signal representing a tracking condition of the light beam in relation to a record track portion on the optical disc and a second signal different in phase by substantially ninety degrees from the first signal and to produce a tracking error signal which satisfies the following equation:St=Sl/{K.(Sl.sup.2 +S2.sup.2).sup.1/2+S2}where St stands for the tracking error signal, Sl stands for the first signal, S2 stands for the second signal and K stands for a constant equal to or more than 1.

公开(公告)号：US4972337A

公开(公告)日：1990-11-20

申请号：US131640

申请日：1987-12-11

申请人： Naoya Eguchi ,  Osamu Kawakubo ,  Hitoshi Okada ,  Tamotsu Maeda ,  Susumu Tosaka

发明人： Naoya Eguchi ,  Osamu Kawakubo ,  Hitoshi Okada ,  Tamotsu Maeda ,  Susumu Tosaka

IPC分类号： G11B5/02 ,  G11B11/10 ,  G11B11/105

CPC分类号： G11B11/1056

摘要： A rotation control for a magnet used in a magneto-optical recording system having a first coil that rotates a permanent magnet to invert the polarity of its magnetic field applied to an optical recording type disc and a second coil provided at the position displaced from the central line of the first coil and for applying a driving force to the permanent magnet when the permanent magnet begins to rotate, wherein the permanent magnet can be settled in quite a short time after it is inverted in polarity by controlling a drive current applied to the second coil.

公开(公告)号：US4511940A

公开(公告)日：1985-04-16

申请号：US308756

申请日：1981-10-05

申请人： Katsumi Yamaguchi ,  Kazuki Takai ,  Hitoshi Okada

发明人： Katsumi Yamaguchi ,  Kazuki Takai ,  Hitoshi Okada

IPC分类号： G11B15/675 ,  G11B23/10 ,  G11B5/54

CPC分类号： G11B15/67505

摘要： An automatic tape-pack loading mechanism adopted in a tape player, in which a rack portion is formed on a tape-pack holder which serves to receive a tape pack and drop it into the playing position, in which a motor-driven rotating piece is so provided as to be engaged with, and disengaged from, a rotary member engaged with said rack portion, and in which a lock link is disposed on a member supporting said rotary member to change the relation from engagement to disengagement or vice versa between said rotary member and rotating piece.

摘要翻译： 一种在磁带播放机中采用的自动带包装装载机构，其中，在用于接收磁带包并将其丢弃到播放位置的带式包装架上形成有齿条部分，其中电动驱动的旋转件是 被设置为与与所述齿条部分接合的旋转构件接合和分离，并且其中锁定连杆设置在支撑所述旋转构件的构件上，以在所述旋转体之间改变从接合到分离的关系，反之亦然 会员和旋转片。

公开(公告)号：US4450492A

公开(公告)日：1984-05-22

申请号：US315810

申请日：1981-10-28

申请人： Hitoshi Okada ,  Kazuki Takai ,  Katsumi Yamaguchi

发明人： Hitoshi Okada ,  Kazuki Takai ,  Katsumi Yamaguchi

IPC分类号： G11B15/675 ,  G11B15/66 ,  G11B21/22

CPC分类号： G11B15/67505

摘要： An interlocking gear control mechanism, comprising a driven gear engaged with a drive rotary member and a rack member operated as engaged with the driven gear, and a gear lock piece to put said driven gear in engagement with the drive rotary member, an elastic member to give the gear lock piece a force for engagement of the driven gear with the drive rotary member, and a portion provided on the gear lock piece to eliminate the engagement in a condition where the rack member has completely attained its full stroke.

摘要翻译： 一种互锁齿轮控制机构，包括与驱动旋转构件接合的从动齿轮和与从动齿轮啮合的齿条构件，以及将所述从动齿轮与所述驱动旋转构件接合的齿轮锁定件，弹性构件 为齿轮锁定件提供用于与从动齿轮与驱动旋转部件接合的力，以及设置在齿轮锁定件上的部分，以消除在齿条构件完全达到其行程的状态下的接合。

公开(公告)号：US4423847A

公开(公告)日：1984-01-03

申请号：US306085

申请日：1981-09-28

申请人： Katsumi Yamaguchi ,  Hitoshi Okada

发明人： Katsumi Yamaguchi ,  Hitoshi Okada

IPC分类号： G11B15/30 ,  G11B15/32 ,  G11B15/44

CPC分类号： G11B15/44 ,  G11B15/32

摘要： In a magnetic tape recording/playing device, a reel base driving mechanism wherein a pulley driven by an electric motor and a reel drive block are fitted rotatably independently of each other to a shaft of each of forward- and reverse-side reel bases, while an idler is movably provided between said reel bases, which idler having an input section or idler which engages said pulleys and an output section or idler which engages said reel drive blocks, said idler being made to engage the forward- or reverse-side reel base, thus transmitting the rotation of the pulley on that reel base to the reel drive block also on this reel base.

摘要翻译： 在磁带记录/播放装置中，一种卷轴基座驱动机构，其中由电动马达和卷轴驱动块驱动的滑轮彼此独立地安装到每个前侧和后侧卷轴基座的轴上，同时 一个惰轮可移动地设置在所述卷轴底座之间，该惰轮具有与所述滑轮接合的输入部分或惰轮，以及与所述卷轴驱动块接合的输出部分或惰轮，所述惰轮被制成与前侧或后侧卷盘基座 ，从而也将该卷轴底座上的滑轮的旋转传递到卷盘驱动块上。

公开(公告)号：US4422589A

公开(公告)日：1983-12-27

申请号：US306566

申请日：1981-09-28

申请人： Hitoshi Okada

发明人： Hitoshi Okada

IPC分类号： G11B15/30 ,  F16D7/02 ,  F16D27/01 ,  G01P3/487 ,  G11B15/32 ,  G11B15/50 ,  H02K49/06 ,  B65H17/02 ,  H02K49/10

CPC分类号： G11B15/50 ,  F16D27/01 ,  F16D7/025 ,  G11B15/32

摘要： In an apparatus in which there is provided a driving pulley around a rotatable shaft which constructs a driven member in a manner freely rotatable with an external force so that the rotational force of the driving pulley is transmitted to the driven member due to the friction, a friction transmitting apparatus characterized in that there are further provided a magnetized member mounted on the driving pulley and a magnet mounted around the driven rotatable shaft so that the magnet attracts the magnetized member to thereby transmit the rotational force of the driving pulley to the driven member.

摘要翻译： 在其中设置有围绕可旋转轴的驱动滑轮的装置中，其以外力自由旋转的方式构成从动构件，使得驱动滑轮的旋转力由于摩擦而传递到从动构件， 摩擦传动装置的特征在于，还设置有安装在所述驱动滑轮上的磁化构件和安装在所述从动旋转轴周围的磁体，使得所述磁体吸引所述磁化构件，从而将所述驱动滑轮的旋转力传递到所述从动构件。

公开(公告)号：US4338683A

公开(公告)日：1982-07-06

申请号：US204708

申请日：1980-11-06

申请人： Shunsuke Furukawa ,  Hiroshi Ogawa ,  Hitoshi Okada ,  Masanobu Yamamoto

发明人： Shunsuke Furukawa ,  Hiroshi Ogawa ,  Hitoshi Okada ,  Masanobu Yamamoto

IPC分类号： G01P3/42 ,  G11B19/24 ,  G11B19/28 ,  G11B17/00

CPC分类号： G11B19/28 ,  G11B19/24

摘要： In a disc record reproducing apparatus for reproducing a disc on which a PCM (pulse code modulation) signal in the form of an RLLC (run length limited code) is recorded, a reproduced PCM signal therefrom is frequency-divided at a constant frequency dividing ratio, a frequency-divided PCM signal is compared with a reference frequency signal, and then the rotation of the disc record is controlled by a compared output.

摘要翻译： 在用于再现其上记录有RLLC（游程长度限制码）形式的PCM（脉冲编码调制））信号的盘的盘记录再现装置中，从其再现的PCM信号以恒定的分频比被分频 ，将分频PCM信号与参考频率信号进行比较，然后通过比较输出来控制盘记录的旋转。

公开(公告)号：US4209812A

公开(公告)日：1980-06-24

申请号：US930421

申请日：1978-08-02

申请人： Hiroyuki Umezawa ,  Hitoshi Okada

发明人： Hiroyuki Umezawa ,  Hitoshi Okada

IPC分类号： G11B15/10 ,  G11B15/18 ,  G11B15/26 ,  G11B15/675 ,  G11B15/44 ,  G11B23/04

CPC分类号： G11B15/106 ,  G11B15/1883 ,  G11B15/26 ,  G11B15/67555

摘要： A tape player having two belts wound around a motor shaft, with one further wound around flywheels provided with capstans and another further wound around a reel shaft drive system, said flywheels and said reel shaft drive system being adapted to be separately rotated by the different belts, respectively.BACKGROUND OF THE INVENTIONThis invention relates to a tape player art and more particularly to a tape player which can enjoy minimized wow and flutter as well as reduced thickness in construction.The reduction in thickness of a tape player will not only contribute to reduction of materials to be used for manufacturing of the tape player but also enable the tape player to be suitably installed with advantage in a limited space for a driver's seat in a car. In conventional mobile tape players, it is general that wow and flutter is caused principally by a load fluctuation in the tape drive system. The conventional mobile tape players generally employ such a system that flywheels are driven by a belt wound around a motor reel. The reel driver is driven through a flywheel drive of a constant rate and a drive system is formed through a fast-forward/rewind mechanism, so that the drive load applied thereby fluctuates considerably and wow and flutter is inevitably caused. On the other hand, to establish such a reel driver-drive system, there should be employed such a structure that a gear or wheel is mounted coaxially with the flywheel and the drive system should be formed through the gear or wheel coaxial with the flywheel. Consequently, the flywheel assembly becomes inevitably bulky and thick. Furthermore, the flywheel is provided with a capstan and a tape pack mounted thereon, requiring a further mechanism for loading/unloading the tape pack thereon which unavoidably limits the desired reduction in thickness of the tape player.

摘要翻译： 一种具有缠绕在电动机轴上的两个带的磁带播放器，其中另外缠绕在设置有绞盘的飞轮周围，另一个缠绕在卷轴驱动系统上，所述飞轮和所述卷轴驱动系统适于由不同的带 ， 分别。