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公开(公告)号：US4161631A
公开(公告)日：1979-07-17
申请号：US924354
申请日：1978-07-13
申请人： Hitoshi Matsuda
发明人： Hitoshi Matsuda
IPC分类号： H04R9/16
CPC分类号： H04R9/16
摘要： A pickup cartridge composed of a cantilever, a plate-shaped armature and a magnet or magnetic material. The plate-shaped armature is pivotally mounted to the cantilever and stretched backward by a suspension wire through a damper disposed in front of the magnet or magnetic material. A holding means is disposed at the rear of the damper and includes a magnet with north and south poles. Coils are mounted on the armature. The magnetic flux which passes through the coils passing in the direction of the axes of the coils, but not parallel to the direction determined by a line between the north and south poles of said magnet, produces a linear push-pull output.
摘要翻译： 由悬臂，板状电枢和磁体或磁性材料组成的拾取盒。 板状电枢枢转地安装在悬臂上，并通过布置在磁体或磁性材料前面的阻尼器的悬挂线向后延伸。 保持装置设置在阻尼器的后部，并且包括具有北极和南极的磁体。 线圈安装在电枢上。 通过线圈通过的线圈的磁通量，其在线圈的轴线方向上通过但不与由所述磁体的北极和南极之间的线确定的方向平行，产生线性推挽输出。
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公开(公告)号：US4110670A
公开(公告)日：1978-08-29
申请号：US798343
申请日：1977-05-19
申请人： Tetsuro Araki , Hideaki Hayashi
发明人： Tetsuro Araki , Hideaki Hayashi
IPC分类号： H02P3/18 , B60T13/74 , G11B15/22 , G11B15/50 , G11B19/22 , H02K7/102 , H02K7/106 , H02P3/24 , D01H7/22
CPC分类号： H02K7/1023 , G11B15/22 , G11B15/50 , G11B19/22 , H02K7/106 , H02P3/24 , Y10T477/87
摘要： A brake apparatus is disclosed in which a rotary shaft coupled to a load to be rotated is rotatably supported by a plain bearing and a biasing device is located near the shaft to bias or move the shaft to the biasing device to applying braking force to the rotating load by the friction between the shaft and its bearing so as to stop the rotation of shaft and hence load.
摘要翻译： 公开了一种制动装置，其中联接到待旋转的负载的旋转轴由滑动轴承可旋转地支撑，并且偏置装置位于轴附近，以将轴偏置或移动到偏置装置，以将旋转的制动力施加到旋转 通过轴与其轴承之间的摩擦来承受负载，以便阻止轴的旋转并因此阻止负载。
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公开(公告)号：US4214893A
公开(公告)日：1980-07-29
申请号：US849327
申请日：1977-11-07
CPC分类号： B22F9/24 , G11B5/70621 , H01F1/06 , H01F1/065 , B22F2998/00 , Y10T428/2927 , Y10T428/298 , Y10T428/2982
摘要： A method is provided for making a magnetic powder composed principally of cobalt from a mixture solution containing metal salts, such as cobalt salt, and the like, catalysts, such as palladium chloride, and the like, and reducing agents, such as sodium hypophosphite, and the like. Protein, such as albumin or hemoglobin, is added to the mixture solution to promote dispersion of cobalt particles therein. The magnetic powder thus obtained is suitable for use in the production of audio and video tapes.
摘要翻译： 提供了一种制备主要由钴组成的磁性粉末的方法，所述磁性粉末是由含有诸如钴盐等金属盐的混合溶液，氯化钯等催化剂，还原剂如次磷酸钠， 等等。 将蛋白质如白蛋白或血红蛋白加入到混合物溶液中以促进钴颗粒在其中的分散。 这样获得的磁粉适用于制造音频和录像带。
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公开(公告)号：US4209119A
公开(公告)日：1980-06-24
申请号：US914689
申请日：1978-06-12
申请人： Susumu Kakuta , Katsuyoshi Nukui , Kenji Hiraishi
发明人： Susumu Kakuta , Katsuyoshi Nukui , Kenji Hiraishi
摘要： A tape drive control apparatus in which a tape is wound on a capstan rotating at a constant speed and driven by the friction between the capstan and the tape without using a pinch roller. The tape is moved apart from the capstan upon the fast mode such as the fast forward or rewinding mode and upon the stop mode.
摘要翻译： 一种磁带驱动控制装置，其中磁带卷绕在以恒定速度旋转并由主导轴和磁带之间的摩擦驱动而不使用夹送辊的主导轴上。 在快速模式（例如快进或倒退模式）和停止模式下，磁带从主导轴移开。
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公开(公告)号：US4149036A
公开(公告)日：1979-04-10
申请号：US792788
申请日：1977-05-02
摘要： A crosstalk compensating circuit for use in stereo reproduction having a phase shifter or attenuator provided in each of plural signal transmission paths to adjust the amplitude and phase of an input channel signal and to add the adjusted channel signal to another channel signal, so that a crosstalk having any amplitude and phase between channels is compensated for.
摘要翻译： 一种用于立体声再现的串扰补偿电路，其具有设置在多个信号传输路径中的每一个中的移相器或衰减器，以调整输入通道信号的幅度和相位，并将调整后的通道信号加到另一通道信号上，使得串扰 在通道之间具有任何幅度和相位被补偿。
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公开(公告)号：US4133494A
公开(公告)日：1979-01-09
申请号：US807675
申请日：1977-06-17
申请人： Katsuyoshi Nukui
发明人： Katsuyoshi Nukui
摘要： A tape driving apparatus in which even if the radius of a magnetic medium such as a magnetic tape wound on a supply and/or take-up reel is varied, a current flowing in a servo motor coupled directly to a capstan, which is varied in accordance with a load, is utilized to make the speed of the servo-motor constant by controlling a reel motor and hence to make the back tension and take-up tension of the magnetic tape equal.
摘要翻译： 一种磁带驱动装置，其中即使磁性介质（例如缠绕在供给和/或卷带盘上的磁带）的半径发生变化，在直接连接到绞盘上的伺服电动机中流动的电流也可以变化， 利用负载，通过控制卷轴电机来使伺服电动机的速度恒定，从而使磁带的背张力和卷取张力相等。
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7.发明授权Multi-directional stereo multiple recording apparatus with constant acceleration cutting 失效具有恒定加速切割功能的多向立体声多重记录装置
公开(公告)号：US4070552A
公开(公告)日：1978-01-24
申请号：US635624
申请日：1975-11-26
申请人： Yoshihisa Kamo
发明人： Yoshihisa Kamo
CPC分类号： H04S3/00
摘要： A multi-directional stereo multiple recording and reproducing apparatus is disclosed in which a plurality of sound source signals are encoded to a plurality of main- and sub-channel signals, the encoded main-channel signals and a carrier signal of a frequency f.sub.c which is angle-modulated with the sub-channel signals are mixed through a filter circuit, and the modulated signal is recorded on a lacquer master disc by a constant acceleration cutting and then reproduced therefrom.
摘要翻译： 公开了一种多方向立体声多重记录和再现装置，其中多个声源信号被编码为多个主信道信号和子信道信号，编码的主信道信号和频率fc的载波信号是 通过滤波电路混合利用子信道信号进行角度调制的调制信号，通过恒定的加速度切割将调制信号记录在漆母盘上，然后从其再现。
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公开(公告)号：US4519064A
公开(公告)日：1985-05-21
申请号：US313764
申请日：1981-10-22
CPC分类号： G11B7/0938 , G11B7/241 , G11B7/245 , G11B7/246 , G11B7/247 , G11B7/2472 , G11B7/254 , G11B7/2585
摘要： An optical record disc is provided having a guide signal pit previously formed on a base plate for reading out a tracking information by a laser beam. A reflection film is coated on the base plate including the guide signal pit portion, and the record blank portion. A record layer of a removing type is formed over the reflection film. The record layer has a uniform thickness over the record layer and a uniform thickness, of substantially smaller dimension over the guide signal pit portion.
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公开(公告)号：US4447790A
公开(公告)日：1984-05-08
申请号：US309578
申请日：1981-10-08
申请人： Ryuichi Fukuda , Masami Fujiwara , Norio Ishiguro
发明人： Ryuichi Fukuda , Masami Fujiwara , Norio Ishiguro
CPC分类号： H03F1/3229
摘要： A distortion eliminating circuit includes an amplifier and a difference detector for detecting a difference between two signals. In this case, the input signal to the amplifier and the output signal therefrom, at least one of which is adjusted in level are applied to the difference detector, or the amplifier is made of a push-pull amplifier consisting of transistors opposite in conductivity type and a series connection of resistors is connected in parallel to a series connection of the emitter resistors of the push-pull amplifier to apply the output obtained at the connection point of the series connection of the resistors to the difference detector which is supplied with the input signal to the push-pull amplifier, and the output from the difference detector is added to the output from the amplifier, to thereby eliminate the distortion of the amplifier.
摘要翻译： 失真消除电路包括用于检测两个信号之间的差的放大器和差分检测器。 在这种情况下，放大器的输入信号及其输出信号（其中的至少一个被调整为电平）被施加到差分检测器，或者放大器由与导电类型相反的晶体管组成的推挽放大器 电阻器的串联连接并联到推挽放大器的发射极电阻器的串联连接，将在电阻器的串联连接点获得的输出施加到供给输入端的差分检测器 信号到推挽放大器，并且来自差分检测器的输出被加到放大器的输出端，从而消除放大器的失真。
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公开(公告)号：US4209669A
公开(公告)日：1980-06-24
申请号：US972047
申请日：1978-12-21
申请人： Hideaki Hayashi
发明人： Hideaki Hayashi
CPC分类号： H04R11/12
摘要： A moving magnet type pick-up cartridge is disclosed. Coils arranged around a moving magnet have no yoke to prevent the generation of distortion by a yoke.
摘要翻译： 公开了一种移动磁体式拾取盒。 排列在移动磁体周围的线圈没有轭，以防止由轭产生变形。
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