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1. 发明授权

US5168487A Optical recording and/or reproducing apparatus 失效
标题翻译：光学记录和/或复制设备
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.

2. 发明授权

US08194517B2 Hologram recording and reproducing device and method for recording hologram 失效
标题翻译：全息记录和再现装置及记录全息图的方法
公开(公告)号：US08194517B2
公开(公告)日：2012-06-05
申请号：US13170623
申请日：2011-06-28
申请人： Hitoshi Okada , Tomiji Tanaka , Takahiro Takeda
发明人： Hitoshi Okada , Tomiji Tanaka , Takahiro Takeda
IPC分类号： G11B11/00
CPC分类号： G11B7/1275 , G03H1/2286 , G03H1/26 , G03H2001/0212 , G03H2240/51 , G03H2240/52 , G03H2240/53 , G11B7/083 , G11B7/08564 , G11B7/0938 , G11B7/1263 , G11B7/1267
摘要： A hologram recording and reproducing device controls an optical beam output from an external cavity semiconductor laser to improve a diffraction efficiency. The hologram recording and reproducing device includes an external cavity laser, a photodiode, a laser drive circuit and a laser diode controller. The external cavity laser has a laser diode adapted to emit an optical beam that is used to generate data light and reference light with which a hologram recording medium is irradiated. The photodiode detects the amount of the optical beam output from the external cavity laser. The laser drive circuit supplies a current to the external cavity laser. The laser diode controller controls the laser drive circuit to ensure that a value obtained by integrating the detected intensity of the optical beam with respect to time over a predetermined period is equal to predetermined recording energy.
摘要翻译：全息记录和再现装置控制从外腔半导体激光器输出的光束以提高衍射效率。全息记录和再现装置包括外腔激光器，光电二极管，激光驱动电路和激光二极管控制器。外腔激光器具有适于发射光束的激光二极管，该光束用于产生照射全息图记录介质的数据光和参考光。光电二极管检测从外腔激光器输出的光束的量。激光驱动电路向外腔激光器提供电流。激光二极管控制器控制激光驱动电路，以确保通过将检测到的光束的强度相对于预定时间段的时间积分获得的值等于预定的记录能量。

3. 发明授权

US07969846B2 Hologram recording and reproducing device and method for recording hologram 失效
标题翻译：全息记录和再现装置及记录全息图的方法
公开(公告)号：US07969846B2
公开(公告)日：2011-06-28
申请号：US12509674
申请日：2009-07-27
申请人： Hitoshi Okada , Tomiji Tanaka , Takahiro Takeda
发明人： Hitoshi Okada , Tomiji Tanaka , Takahiro Takeda
IPC分类号： G11B11/00
CPC分类号： G11B7/1275 , G03H1/2286 , G03H1/26 , G03H2001/0212 , G03H2240/51 , G03H2240/52 , G03H2240/53 , G11B7/083 , G11B7/08564 , G11B7/0938 , G11B7/1263 , G11B7/1267
摘要： A hologram recording and reproducing device controls an optical beam output from an external cavity semiconductor laser to improve a diffraction efficiency. The hologram recording and reproducing device includes an external cavity laser, a photodiode, a laser drive circuit and a laser diode controller. The external cavity laser has a laser diode adapted to emit an optical beam that is used to generate data light and reference light with which a hologram recording medium is irradiated. The photodiode detects the amount of the optical beam output from the external cavity laser. The laser drive circuit supplies a current to the external cavity laser. The laser diode controller controls the laser drive circuit to ensure that a value obtained by integrating the detected intensity of the optical beam with respect to time over a predetermined period is equal to predetermined recording energy.
摘要翻译：全息记录和再现装置控制从外腔半导体激光器输出的光束以提高衍射效率。全息记录和再现装置包括外腔激光器，光电二极管，激光驱动电路和激光二极管控制器。外腔激光器具有适于发射光束的激光二极管，该光束用于产生照射全息图记录介质的数据光和参考光。光电二极管检测从外腔激光器输出的光束的量。激光驱动电路向外腔激光器提供电流。激光二极管控制器控制激光驱动电路，以确保通过将检测到的光束的强度相对于预定时间段的时间积分获得的值等于预定的记录能量。

4. 发明授权

US4458276A Magnetic tape recording/reproducing apparatus with eject spring set by tape drive motor 失效
标题翻译：具有由磁带驱动电机设置的弹出弹簧的磁带记录/再现装置
公开(公告)号：US4458276A
公开(公告)日：1984-07-03
申请号：US315962
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 , G11B23/06
CPC分类号： G11B15/67505
摘要： A magnetic tape recording/reproducing apparatus having a loading assembly which comprises a rotatable member driven by a motor mounted on the tape deck, a rack member interlocking with a tape pack inserted within said tape deck so as to be slidable with respect to said tape deck so that said rack member is allowed to slide due to rotational force of said rotatable member.
摘要翻译：一种具有装载组件的磁带记录/再现装置，该装载组件包括由安装在磁带甲板上的电动机驱动的可旋转构件，与插入在所述磁带平台内的磁带组相互锁定的齿条构件，以相对于所述磁带座滑动使得所述齿条构件由于所述可旋转构件的旋转力而被滑动。

5. 发明授权

US4423445A Clutch system in a tape player 失效
标题翻译：离合器系统在磁带机中
公开(公告)号：US4423445A
公开(公告)日：1983-12-27
申请号：US259745
申请日：1981-05-01
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 , G11B5/008
CPC分类号： G11B15/1883 , G11B15/67505
摘要： A clutch system in a tape player comprises a first rotor rotated by a motor and a second rotor capable of engaging with and disengaging from said first rotor, both rotors being formed with engage portions at their end faces which are adjacent to each other. The clutch system is further provided with a switching means for carrying out engagement and disengagement of said rotors, and the switching means is operated by an operating means for making said motor carry out automatic loading operation.
摘要翻译：带式播放器中的离合器系统包括由电动机旋转的第一转子和能够与所述第一转子接合和分离的第二转子，两个转子在它们的彼此相邻的端面处形成有接合部分。离合器系统还设置有用于执行所述转子的接合和分离的切换装置，并且切换装置由用于使所述电动机执行自动加载操作的操作装置操作。

6. 发明授权

US4403265A Power loading/unloading mechanism for tape record/playback apparatus 失效
标题翻译：磁带记录/播放装置的动力装卸机构
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。

7. 发明授权

US4227224A Cassette tape recording/reproducing apparatus 失效
标题翻译：盒式磁带录音/再现装置
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。

8. 发明申请

US20080198432A1 HOLOGRAM REPRODUCING APPARATUS, HOLOGRAM REPRODUCING METHOD, AND PHASE MODULATING ELEMENT 失效
标题翻译： HOLOGRAM复制设备，HOLOGRAM复制方法和相位调制元件
公开(公告)号：US20080198432A1
公开(公告)日：2008-08-21
申请号：US12032536
申请日：2008-02-15
申请人： Tomiji Tanaka , Masaaki Hara , Kazutatsu Tokuyama , Satoru Seko , Shinji Yamada , Hitoshi Okada
发明人： Tomiji Tanaka , Masaaki Hara , Kazutatsu Tokuyama , Satoru Seko , Shinji Yamada , Hitoshi Okada
IPC分类号： G03H1/22 , G02F1/137
CPC分类号： G11B7/1362 , G03H1/22 , G03H1/265 , G03H2001/0441 , G03H2210/562 , G11B7/0065 , G11B7/1369
摘要： A hologram reproducing apparatus includes a first reference light path leading laser light from a laser light source so that a hologram recording medium is irradiated with first reference light; a diffracted light path leading diffracted light, generated from the hologram recording medium by irradiation with the first reference light, to a light receiving element having a plurality of pixels; and a second reference light path leading second reference light, having the same polarization direction as that of the diffracted light, from the laser light source to the light receiving element. The second reference light path is provided with a phase modulating element so that the phase difference between the diffracted light and the second reference light in a light receiving surface of the light receiving element is adjusted within a predetermined range.
摘要翻译：全息图再现装置包括：第一参考光路，其引导来自激光光源的激光，使得全息图记录介质用第一参考光照射; 通过照射第一参考光从全息图记录介质产生的衍射光的衍射光路到具有多个像素的光接收元件; 以及第二参考光路，其将具有与衍射光的偏振方向相同的偏振方向的第二参考光从激光光源引导到光接收元件。第二参考光路设置有相位调制元件，使得光接收元件的光接收表面中的衍射光和第二参考光之间的相位差被调节在预定范围内。

9. 发明授权

US4972337A Device for controlling rotation of a magnet used in a magneto-optical recording system 失效
标题翻译：用于控制在磁光记录系统中使用的磁体旋转的装置
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.

10. 发明授权

US4511940A Tape player having motor-driven tape-pack loading mechanism 失效
标题翻译：磁带机具有电机驱动的磁带包装机构
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。

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