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公开(公告)号：US4410975A
公开(公告)日：1983-10-18
申请号：US269556
申请日：1981-06-02
申请人： Yoshihisa Mori , Mitsuru Takashima
发明人： Yoshihisa Mori , Mitsuru Takashima
摘要： A stereophonic pick-up cartridge which has a cantilever having a stylus on a free and thereof and an armature at the rear end thereof, a fixed support and a damper having a first plane surface abutting on the support and a second plane surface abutting on the armature. Grooves are formed in the second plane surface of the damper. The provision of the grooves results in improved isolation between the left and right channels during playback and results in an improved stereophonic pick-up cartridge.
摘要翻译： 一种立体声拾取盒，其具有悬臂，其具有在其自由上的触针和在其后端的电枢，固定支撑件和阻尼器，其具有抵靠在支撑件上的第一平面和抵靠在支架上的第二平面 衔铁。 凹槽形成在阻尼器的第二平面中。 提供凹槽导致在重放期间在左声道和右声道之间改进的隔离，并且导致改进的立体声拾取盒。
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公开(公告)号：US4326285A
公开(公告)日：1982-04-20
申请号：US136320
申请日：1980-04-01
摘要： In order to improve the performance of a stereo phonograph cartridge which includes a base, first and second piezoelectric transducers, first and second individual elastomeric blocks mounting the first and second transducers to the base depending downwardly in a cantilevered manner in horizontal spaced relationship, first and second separate elastomeric stabilizers mounted to the base in horizontal spaced relationship with each other and directly below the first and second transducers, a resolver having four connecting points contacting respectively to the first and second transducers and the first and second stabilizers, a pivot anchor coupling the resolver in a tensioned manner to the base, the pivot anchor being attached to the resolver at a point which is equidistant from each of the four connecting points, and a stylus bar extending from the resolver along the axis of the pivot anchor, the stylus diameter is reduced to thereby reduce stylus mass, the size of the resolver and stabilizers is reduced to permit reducing the vertical tracking angle between the stylus and the record surface, and the elastomeric stiffness of the stabilizers and transducer mounting is reduced and, to compensate for the rise and fall in cartridge output and the imbalance between vertical and lateral output caused by these measures, an elastomeric coupler is inserted between each transducer and its associated coupling point, a dynamic resonant damper is attached to the side of the transducer opposite each coupling point and a dynamic balancing weight inserted in the resolver.
摘要翻译： 为了提高立体声留声机盒的性能，其包括底座，第一和第二压电换能器，第一和第二单独的弹性体块将第一和第二换能器安装到底部，其以水平间隔关系的悬臂方式向下悬挂， 第二分离的弹性体稳定器，其以彼此水平间隔开的关系并且直接在第一和第二换能器下方安装到基座;旋转变压器，其具有分别与第一和第二换能器以及第一和第二稳定器接触的四个连接点; 旋转器以一个张紧的方式旋转到基座，枢轴锚固件在与四个连接点中的每个连接点等距的点处附接到旋转变压器，以及从分解器沿枢轴锚定件的轴线延伸的触控杆，触针直径 减少，从而减少触笔质量，解算器的大小和稳定 衰减器被减少以允许减小触针和记录表面之间的垂直跟踪角度，并且降低稳定器和传感器安装的弹性体刚度，并且补偿盒输出的上升和下降以及垂直和横向输出之间的不平衡 由这些措施引起的，弹性耦合器被插入在每个换能器及其相关联的耦合点之间，动态谐振阻尼器附接到换能器的与每个耦合点相对的侧面，以及插入在旋转变压器中的动态平衡重量。
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3.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：US4238646A
公开(公告)日：1980-12-09
申请号：US931728
申请日：1978-08-07
申请人： Kenshiro Aizawa , Hisashi Okada
发明人： Kenshiro Aizawa , Hisashi Okada
摘要： In a pickup cartridge of moving-coil 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. First and second coils are arranged so that the axis of the first coil is parallel to the record disk and the axis of the second coil is perpendicular to the record disk.
摘要翻译： 在动圈型的拾取盒中，分别检测垂直和水平方向的悬臂的运动分量，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。 第一和第二线圈被布置成使得第一线圈的轴线平行于记录盘，并且第二线圈的轴线垂直于记录盘。
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公开(公告)号：US4138122A
公开(公告)日：1979-02-06
申请号：US808163
申请日：1977-06-20
申请人： Hisayoshi Nakatsuka
发明人： Hisayoshi Nakatsuka
摘要： A phonograph pickup having an armature supported by a resilient pad which restores the armature to a neutral position after excursions thereof. A further resilient means is provided, which engages the armature at a greater distance from its fulcrum than does the pad. The additional resilient means is made of a material having good damping characteristics.
摘要翻译： 具有由弹性垫支撑的电枢的留声机拾音器，其在偏移之后将电枢恢复到中立位置。 提供了一种另外的弹性装置，其以与该垫相比更远的距离使其与支点接合。 附加的弹性装置由具有良好阻尼特性的材料制成。
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公开(公告)号：US4136884A
公开(公告)日：1979-01-30
申请号：US778928
申请日：1977-03-18
申请人： Motoi Iyeta
发明人： Motoi Iyeta
摘要： An electromagnet type pickup device including a vibrating tubular member supporting a stylus-carrying cantilever and having a funnel-shaped engaging portion formed at one end, and including a tension wire having a bulging portion formed at one end, the other end being passed through the tubular member and secured thereto under tension so that the bulging portion is secured in said funnel-shaped engaging portion, thereby enhancing the firm engagement between the vibrating member and the supporting wire to establish the non-swaying center of vibration of the vibrating member.
摘要翻译： 一种电磁体型拾取装置，包括：支撑触针支撑悬臂的振动管状构件，并且在一端形成有漏斗形接合部，并且包括在一端形成有凸起部的张力线，另一端穿过 管状构件并且在张力下固定在其上，使得凸出部分固定在所述漏斗形接合部分中，从而增强了振动构件和支撑线之间的牢固接合，以建立振动构件的非摇摆振动中心。
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公开(公告)号：US4103116A
公开(公告)日：1978-07-25
申请号：US637149
申请日：1975-12-03
申请人： Hitoshi Mishima
发明人： Hitoshi Mishima
摘要： A pickup cartridge of the moving magnet type. The vibration center of its vibrating system is stabilized by being concentrated at a certain point without appreciable fluctuations, regardless of the vibration amplitude of the vibrating system. Also, it has a very high conversion efficiency of its displacement-magnetism converting system for converting the positional changes of this vibrating system to changes in magnetism. This conversion efficiency is almost constant regardless of the vibration amplitude of the vibrating system.A damping member is interposed between an armature magnet and a member for supporting this armature magnet. A cantilever attached to the magnet is pulled, jointly with the armature magnet, by a tension wire connected to the base of this cantilever, toward the supporting member in the axial direction of the cantilever. The base end of the cantilever is positioned substantially at the center of that surface of the armature magnet which faces the supporting member via the damping member. The other surface of the armature magnet faced by the pole pieces of the displacement-magnetism converting system is a plane having a substantially constant radius of curvature centering around the base of the cantilever.
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公开(公告)号：US3952171A
公开(公告)日：1976-04-20
申请号：US507202
申请日：1974-09-18
摘要： An improved stereo phonograph cartridge which provides direct coupling between the stylus signal motion and right and left channel transducers with minimal distortion of the record groove modulation in which the transducers are held between elastomeric blocks with forces transmitted to the transducers by horizontally spaced contact points on a resolver on which the stylus bar is supported and which is anchored to the base with a flexible pivot anchor under tension with the resolver having a pair of stabilizers of an elastomeric material located in vertical alignment with the contact points on the resolver to form a second set of force transmission points with all points equidistant from the pivot point of the pivot anchor to result in a balanced arrangement such that right and left channel stylus bar motions will be faithfully transmitted to the transducers.
摘要翻译： 改进的立体声留声机盒，其提供触针信号运动与右和左声道换能器之间的直接耦合，其中记录槽调制的最小变形，其中换能器保持在弹性体块之间，其中力通过水平隔开的接触点传递到换能器 解析器，其上支撑着触控杆并且在张力下锚固到基部的解析器具有一对弹性体材料的稳定器，所述弹性体材料的稳定器位于与解析器上的接触点垂直对准以形成第二组 的力传输点，其中所有点与枢轴锚点的枢转点等距离，以产生平衡布置，使得右和右通道触针杆运动将被忠实地传递到换能器。
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公开(公告)号：US3865997A
公开(公告)日：1975-02-11
申请号：US35159973
申请日：1973-04-16
申请人： RCA CORP
发明人： HALTER JEROME BARTH
摘要： A cutterhead assembly suitable for forming a topographic signalrepresentative pattern in a recording medium such as a disc is constructed with non-parallel external surfaces so as to provide a response relatively free of undesired resonant modes over a relatively wide frequency range. The cutterhead includes a cutting stylus supported in a stylus mount. The stylus mount and therefore the stylus are driven by a piezoelectric element which is mounted on a supporting pedestal. A resilient mounting means is utilized to fasten the supporting pedestal to a mounting bracket.
摘要翻译： 适合于在诸如盘的记录介质中形成地形信号代表图案的刀架组件被构造成具有非平行的外表面，以便在相对较宽的频率范围内提供相对不需要不期望的共振模式的响应。 刀盘包括支撑在触控笔座中的切割手写笔。 触控笔座，因此触针由安装在支撑座上的压电元件驱动。 使用弹性安装装置将支撑基座固定到安装支架上。
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公开(公告)号：US3761647A
公开(公告)日：1973-09-25
申请号：US3761647D
申请日：1969-08-13
申请人： AUDIO TECHNICA KK
摘要： A stereophonic pickup cartridge for reproducing two channel sound from record discs which are cut according to 45*-45* system, comprises one or more armatures of high magnetic permeability material and mounted on a cantilever which transmits vibrations of a stylus tip, a permanent magnet secured to a cartridge body adjacent the armature so as to provide magnetic excitation thereto, and an electromagnetic current generating arrangement responsive to a change in magnetic flux passing through the armature from the permanent magnet which is caused by vibration of the armature. The electromagnetic arrangement includes two pairs of pole pieces located on opposite sides of and with an inclination of 45* with respect to an imaginary vertical plane passing through the axis of the cantilever so that the pole pieces of each pair extend in directions perpendicular to the respective modulation walls of a sound groove, the pairs of pole pieces forming independent gaps for each channel, and the armatures being positioned to be separately operable within the independent gaps. The pickup cartridge provides good channel separation, reduced equivalent mass of the vibrating system and improved frequency response as well as improved sound groove tracking.
摘要翻译： 一种用于根据45°-45°系统切割的记录盘再现两声道声音的立体声拾取盒，包括一个或多个高磁导率材料的电枢，并安装在悬臂上，该悬臂传递触针尖，永磁体 固定到与电枢相邻的盒体，以便向其提供磁激励;以及电磁电流产生装置，其响应于由电枢的振动引起的永磁体的通过电枢的磁通量的变化。 电磁装置包括两对极片，它们相对于穿过悬臂的轴线的假想垂直平面倾斜45度的相对侧并且具有垂直于相应的垂直方向的方向延伸 声槽的调制壁，成对的极片形成用于每个通道的独立间隙，并且电枢被定位成在独立间隙内单独可操作。 拾音盒提供良好的通道分离，减少振动系统的等效质量和改善的频率响应以及改进的声槽跟踪。
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公开(公告)号：US3495838A
公开(公告)日：1970-02-17
申请号：US3495838D
申请日：1968-01-15
发明人： ZIMMERMANN HEINRICH
CPC分类号： H04R1/16
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