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1.发明授权Pickup cartridge for reproducing signals recorded on a 45-45 stereophonic record disk 失效用于再现记录在45-45立体声记录盘上的信号的拾取盒
公开(公告)号：US4345322A
公开(公告)日：1982-08-17
申请号：US169987
申请日：1980-07-18
申请人： Kenshiro Aizawa , Hisashi Okada
发明人： Kenshiro Aizawa , Hisashi Okada
摘要： In a pickup cartridge of the moving magnet type, the components of movement of a cantilever in the vertical and horizontal directions are individually detected to produce two kinds of electromotive forces respectively proportional to the velocity of the detected vertical and horizontal components of movement. The sum and difference signals of the two kinds of electromotive forces are separately obtained for stereophonic reproduction of signals recorded on a recorded disk. The vibration system is given different vibration characteristics for vertical movements thereof than those for horizontal movements thereof, without sacrificing electrical output characteristics such as channel separation characteristic and low frequency response characteristic.
摘要翻译： 在移动磁体类型的拾取盒中，分别检测垂直和水平方向上的悬臂的运动分量，以产生分别与检测到的垂直和水平运动分量的速度成比例的两种电动势。 分别获得两种电动势的和差和信号，用于记录在记录盘上的信号的立体声再现。 振动系统的垂直运动具有不同于其水平运动的振动特性，而不会牺牲诸如通道分离特性和低频响应特性的电输出特性。
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2.发明授权Phonograph pick-up transducer using a one-piece bearing and inertial damper fabricated from different materials 失效使用单件轴承和不同材料制成的惯性阻尼器的留声机拾音传感器
公开(公告)号：US4194744A
公开(公告)日：1980-03-25
申请号：US874054
申请日：1978-02-01
申请人： Allen R. Groh , Frank J. Karlov , Lawrence R. Happ
发明人： Allen R. Groh , Frank J. Karlov , Lawrence R. Happ
摘要： A magnetic stereo phonograph pick-up cartridge is disclosed. An elongated stylus and an attached permanent magnet are resiliently supported by a molded rubber bearing block which surrounds the magnet and engages under compression with the inner side-walls of a stylus housing sleeve. The molded block is shaped to also serve as a cantilevered inertial damping member which is held in mechanical contact with the magnet. The bearing portion of the block is fabricated from a first material exhibiting high compliance and the inertial damping portion of the block is fabricated from a second material exhibiting high damping characteristics, especially in the high audio frequency range.
摘要翻译： 公开了一种磁性立体声留声机拾音盒。 细长的触针和附着的永磁体由围绕磁体的模制的橡胶支承块弹性地支撑，并与压触式的触针外壳套的内侧壁接合。 模制块被成形为还用作与磁体机械接触的悬臂惯性阻尼构件。 块的轴承部分由表现出高柔顺性的第一材料制成，并且块的惯性阻尼部分由表现出高阻尼特性的第二材料制成，特别是在高音频范围内。
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公开(公告)号：US4177360A
公开(公告)日：1979-12-04
申请号：US819282
申请日：1977-07-27
申请人： Yasuhiro Fujimoto , Masao Suzuki
发明人： Yasuhiro Fujimoto , Masao Suzuki
IPC分类号： H04R11/12
CPC分类号： H04R11/12
摘要： A pickup cartridge is disclosed, which comprises a cantilever having one end provided with a stylus and the other end provided with an armature magnetized in the axial direction thereof, a yoke having at least three leg portions each having an end face, the end faces being faced to a peripheral side surface of the armature except a lower side surface portion thereof and a plurality of coils wound on at least two of the three leg portions and connected to detect only change of magnetic flux due to a desired slanted vibration of the armature.
摘要翻译： 公开了一种拾取盒，其包括悬臂，其一端设有触针，另一端设有沿其轴向磁化的电枢，轭具有至少三个腿部，每个脚部均具有端面，端面为 面向电枢的外周侧表面，除了其下侧表面部分和缠绕在三个腿部中的至少两个上的多个线圈，并且连接以仅检测由于电枢的期望的倾斜振动引起的磁通量的变化。
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公开(公告)号：US4124783A
公开(公告)日：1978-11-07
申请号：US783403
申请日：1977-03-31
申请人： Mitsuo Nemoto
发明人： Mitsuo Nemoto
摘要： A transducer comprises a body including a permanent magnet having a pair of pole pieces which define a magnetic gap therebetween, and a stylus assembly including a pair of coils which are positioned within the magnetic gap. The stylus assembly comprises a cantilever arm having a stylus tip at one end, a non-magnetic carrier secured to the other end of the cantilever arm, a pair of armatures in the form of rods of a magnetic material and carried on the carrier, each of the armatures having one of the coils disposed thereon, and support means for mounting the cantilever arm and the carrier on the body in an oscillatable manner. The coils and the associated armatures are located on the opposite sides of a first imaginary vertical plane which includes the axis of the cantilever arm and lie in a second imaginary vertical plane which is perpendicular to the first plane. Each armature has an axis which is parallel to a modulation axis of a sound groove of a record disk, as projected onto the second plane so as to intersect the axis of the cantilever arm. The point of intersection between the axes of the armatures is spaced from the axis of the arm in the second vertical plane and lies in the first vertical plane. The pair of pole pieces are located on the opposite sides of the second vertical plane in a manner such that the flux passing through the magnetic gap is substantially perpendicular to the second vertical plane. The body is provided with output terminals, and the stylus assembly include lead wires on which voltages induced across the respective coils are produced, the lead wires being connected with the output terminals.
摘要翻译： 换能器包括主体，该主体包括永磁体，该永磁体具有限定它们之间的磁隙的一对极片，以及包括位于磁隙内的一对线圈的触笔组件。 触针组件包括悬臂，其一端具有触针尖端，固定到悬臂的另一端的非磁性载体，一对以磁性材料棒形式并承载在载体上的电枢，每个 具有设置在其上的线圈中的一个的电枢以及用于以可振荡的方式将悬臂和载体安装在主体上的支撑装置。 线圈和相关联的电枢位于包括悬臂的轴线并且位于垂直于第一平面的第二假想垂直平面中的第一假想垂直平面的相对侧上。 每个电枢具有平行于记录盘的声槽的调制轴线的轴线，当被投影到第二平面上以与悬臂的轴线相交时。 衔铁的轴线之间的交点与第二垂直平面中的臂的轴线分开，并位于第一垂直平面中。 一对极片以这样的方式位于第二垂直平面的相对侧上，使得通过磁隙的磁通量基本上垂直于第二垂直平面。 主体设置有输出端子，并且触针组件包括在其上产生感应到各个线圈的电压的引线，引线与输出端子连接。
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公开(公告)号：US4124782A
公开(公告)日：1978-11-07
申请号：US709074
申请日：1976-07-27
申请人： Manfred Schon
发明人： Manfred Schon
CPC分类号： H04R11/12
摘要： An electromagnetic or magnetodynamic transducer-sound pickup comprises a phonograph needle which is connected to either a permanent magnet or a soft iron magnetic member and which is mounted for oscillation in front of, or between a plurality of parallel spaced apart pole rods which are provided with energizing coils. The pole rods are connected at one end to a pole plate. Mechanical oscillations of the magnetic system are suppressed in the zone where the pole plate is connected to the pole rods or in the zone where the pole plate is connected to the permanent magnet by an envelope of plastic which is injection molded around the plate and the rods.
摘要翻译： 电磁或磁动力传感器 - 声音拾取器包括留声机针，其连接到永磁体或软铁磁性构件，并且其被安装用于振荡在多个平行间隔开的极杆之间或之间， 通电线圈。 极杆在一端连接到极板。 在极板连接到极杆的区域或极板通过围绕板和注射成型的塑料外壳将极板连接到永磁体的区域中，磁体系的机械振荡被抑制 。
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公开(公告)号：USRE29232E
公开(公告)日：1977-05-24
申请号：US517222
申请日：1974-10-23
摘要： A magnetic stereophonic pickup having four coil carrying core members arranged symmetrically around the axis of an annular ceramic magnet against the inner pole and end face of which one end of said core members abut the opposite ends being magnetically interconnected. A magnetic armature connected to a stylus is so supported within and coaxial with the magnet that it can oscillate in any direction about a point adjacent the outer end thereof. The armature acts as a variable magnetic load converting stylus movements into variations of the magnetic potentials at the magnet abutting ends of the core members, said potential variations in turn causing flux variations in the coil carrying core members.
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公开(公告)号：US3987256A
公开(公告)日：1976-10-19
申请号：US452989
申请日：1974-03-20
申请人： Fumitaka Nagamura
发明人： Fumitaka Nagamura
CPC分类号： H04S3/006 , G11B20/00992 , H04R11/12 , H04S2400/15 , H04S5/005
摘要： Reproducing cartridge apparatus for producing preferably at least three and most advantageously four channels of electrical signals from a multi-channel signal containing grooved record where the sides of the groove are oriented at angles of 45.degree. from the vertical, said reproducing apparatus comprising a stylus adapted to extend into the record groove, at least three and preferably four transducers mounted in spaced angular relationship to one another and responsive to movement of the stylus in various directions for producing electrical signals indicative of the directions of movement imparted to the said stylus as the stylus rides in the record groove. The transducers have main detecting axes spaced in different directions along which axes they are responsive to a maximum degree to movement of the stylus.
摘要翻译： 再现盒装置，用于从包含沟槽记录的多通道信号优选地产生至少三个最有利的四个通道的电信号，其中槽的侧面与垂直方向成45°的角度定向，所述再现装置包括适于 延伸到记录槽中，至少三个并且优选地四个换能器以彼此间隔的角度关系安装并且响应于触针在各个方向上的移动，以产生指示作为触针施加到所述触针的运动方向的电信号 骑在记录槽中。 传感器具有在不同方向上间隔开的主检测轴，沿着该检测轴，它们响应于触针的最大程度的移动。
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8.发明授权
公开(公告)号：US3908096A
公开(公告)日：1975-09-23
申请号：US42876573
申请日：1973-12-27
申请人： MICRO LABO CO LTD
发明人： FURUYA YONEZO
摘要： A pickup cartridge comprises essentially a cartridge body provided with an inducing magnet and a stylus assembly which is detachably installed in the cartridge body. This stylus assembly comprises: a vibrating structure comprising a stylus, a cantilever arm, and an armature; a tubular guard member surrounding this vibrating structure; a damper for holding the vibrating structure in a manner permitting its oscillatory vibration within this guard member; a tension wire for pulling the vibrating structure in the direction opposite to that in which it is pulled as a result of the frictional force between the stylus and the record disc; and a magnetic member for anchoring one end of the wire and, at the same time, when the stylus assembly is installed in the cartridge body, intimately contacting the inducing magnet thereby to direct and pass the magnetic flux thereof toward the armature.
摘要翻译： 拾取盒基本上包括设置有诱导磁体的盒体和可拆卸地安装在盒体中的触笔组件。 该触针组件包括：振动结构，包括触针，悬臂和电枢; 围绕该振动结构的管状保护构件; 用于以允许其在该防护构件内振荡的振动的方式保持振动结构的阻尼器; 张力线，由于触笔和记录盘之间的摩擦力，拉动振动结构的方向与被拉动的方向相反; 以及用于固定线的一端的磁性构件，并且同时当触针组件安装在盒体中时，紧密地接触感应磁体，从而引导并使其磁通量朝向衔铁。
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9.发明授权
公开(公告)号：US3881073A
公开(公告)日：1975-04-29
申请号：US41495073
申请日：1973-11-12
申请人： GRADO JOSEPH F
发明人： GRADO JOSEPH F
IPC分类号： H04R11/12
CPC分类号： H04R11/12
摘要： An electromagnetic cartridge for the reproduction of quadraphonic, stereophonic and/or monaural sound recordings has a balanced magnetic and electrical structure including a replaceable stylus-lever generator assembly which has front and rear pole piece extensions cooperatively positioned with the generator.
摘要翻译： 用于再现四声，立体声和/或单声道声音记录的电磁盒具有平衡的磁电和电气结构，包括可更换的触控杆发生器组件，其具有与发电机协作定位的前后极片延长部分。
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公开(公告)号：US3700829A
公开(公告)日：1972-10-24
申请号：US3700829D
申请日：1969-12-15
申请人： FONOFILM IND AS
摘要： A magnetic stereophonic pickup having four coil carrying core members arranged symmetrically around the axis of an annular ceramic magnet against the inner pole and end face of which one end of said core members abut the opposite ends being magnetically interconnected. A magnetic armature connected to a stylus is so supported within and coaxial with the magnet that it can oscillate in any direction about a point adjacent the outer end thereof. The armature acts as a variable magnetic load converting stylus movements into variations of the magnetic potentials at the magnet abutting ends of the core members, said potential variations in turn causing flux variations in the coil carrying core members.
摘要翻译： 一种磁性立体声拾取器，具有四个线圈承载芯构件，其围绕环形陶瓷磁体的轴线对称地布置在内磁极和端面上，所述内磁极和端面与所述芯构件的相对端抵接的一端磁互连。 连接到触针的磁性衔铁被支撑在磁体内并与磁体同轴，它可以在围绕其外端的点附近的任何方向上振荡。 衔铁充当可变的磁性负载转换触控笔，转移到芯构件的磁体抵接端处的磁势的变化，所述电位变化又导致承载磁芯构件的线圈中的磁通变化。
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