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1. 发明授权

US09497548B2 Moving-coil type stereo pickup cartridge 有权
标题翻译：动圈式立体拾音盒
公开(公告)号：US09497548B2
公开(公告)日：2016-11-15
申请号：US14958242
申请日：2015-12-03
申请人： KABUSHIKI KAISHA AUDIO-TECHNICA
发明人： Mitsuo Miyata
IPC分类号： H04R9/12 , H04R11/08 , H04R9/16 , H04R11/12 , H04R19/10 , H04R17/08 , H04R9/02
CPC分类号： H04R9/12 , H04R9/025 , H04R9/16 , H04R11/08 , H04R11/12 , H04R17/08 , H04R19/10
摘要： Provided are a vibration unit which includes a pair of right and left coils that vibrate in response to vibration of a stylus attached to a cantilever and a magnetic circuit which includes a magnet and a pair of yokes and forms a magnetic path. The coils to be disposed in a gap between the pair of yokes are flat coils having perfect circular shapes, and V-shaped notches are formed on opposing surfaces, with the coils interposed therebetween, of the pair of yokes 4. An intersection angle of the V-shaped notch is set to be an angle to allow channel separation between right and left output signals to be obtained by the pair of coils to be equal to or larger than 20 db.
摘要翻译：提供了一种振动单元，其包括响应于连接到悬臂的触针的振动而振动的一对左右线圈和包括磁体和一对磁轭并形成磁路的磁路。设置在一对轭之间的间隙中的线圈是具有正圆形状的扁平线圈，并且在一对轭体4之间的相对表面上形成有V形凹口，并且， V形槽口被设定为一个角度，以允许由一对线圈获得的左右输出信号之间的通道间隔等于或大于20db。

2. 发明授权

US4547874A Moving coil type cartridge mounted on cantilever within central opening of ring magnet 失效
标题翻译：安装在悬臂的环形磁铁中央开口内的移动线圈式磁芯
公开(公告)号：US4547874A
公开(公告)日：1985-10-15
申请号：US413082
申请日：1982-08-30
申请人： Yoshihisa Mori , Mitsuru Takashima
发明人： Yoshihisa Mori , Mitsuru Takashima
IPC分类号： H04R9/12 , H04R9/16
CPC分类号： H04R9/16
摘要： Herein disclosed is a compact, highly reliable and inexpensive moving coil type cartridge comprising a ring-like magnet which is coaxially disposed with respect to a cantilever having a needle at its free end. A back-up first and a ring-like second auxiliary magnetic members are additionally provided at both sides of the ring magnet to attain the effective utilization of magnetic flux from the ring magnet.
摘要翻译：这里公开的是一种紧凑，高可靠性和便宜的动圈式卡盘，其包括环状磁体，其相对于在其自由端具有针的悬臂同轴设置。另外在环形磁铁的两侧还设有备用的第一辅助磁性构件和环状的第二辅助磁性构件，以有效地利用来自环形磁体的磁通量。

3. 发明授权

US4497052A Stylus for reproducing information signals recorded on a recording medium 失效
标题翻译：用于再现记录在记录介质上的信息信号的触笔
公开(公告)号：US4497052A
公开(公告)日：1985-01-29
申请号：US221922
申请日：1980-12-30
申请人： Yoshiyo Wada , Kunio Goto , Hisao Kinjo
发明人： Yoshiyo Wada , Kunio Goto , Hisao Kinjo
IPC分类号： G11B3/44 , G11B3/46 , G11B9/07 , H04R9/12 , H04N5/80
CPC分类号： H04R9/12 , G11B3/44 , G11B3/46 , G11B9/075
摘要： A reproducing stylus traces a track of a recording medium, in which track an information signal is recorded as variations of geometrical shape, and reproduces as variations in capacitance the information signal thus recorded. The reproducing stylus comprises a reproducing stylus main structure having a tip part with a flat sliding contact face for slidingly contacting at least one track of the recording medium at a time, and an electrode secured to the reproducing stylus main structure at the tip part thereof and adapted to trace one track and reproduce the information signal as the variations in capacitance in accordance with the variations in geometrical shape. The electrode has over a specific distance over the tip part of the stylus main structure from the extreme tip thereof, a width in the width direction of the track which is less than said width of the track. The extreme tip of the electrode having a flat or linear tip end contacting the track.
摘要翻译：再现触笔跟踪记录介质的轨道，在该轨道中，信息信号被记录为几何形状的变化，并且作为如此记录的信息信号的电容变化再现。再现触针包括具有具有平滑的滑动接触面的顶端部分的再现触笔主结构，用于一次滑动地接触记录介质的至少一个轨道，以及在其尖端处固定到再现触笔主结构的电极，以及适于跟踪一个轨道并根据几何形状的变化再现信息信号作为电容的变化。电极从其尖端超过触针主结构的尖端部分的特定距离，轨道的宽度方向上的宽度小于轨道的宽度。电极的尖端具有接触轨道的平坦或线性尖端。

4. 发明授权

US4031335A Stereo pick-up with casing serving as common pole piece 失效
标题翻译：立体声拾取与套管作为共同极片
公开(公告)号：US4031335A
公开(公告)日：1977-06-21
申请号：US559736
申请日：1975-03-19
申请人： Elzo Smit
发明人： Elzo Smit
IPC分类号： H04R9/12 , G11B3/02 , G11B33/02 , H04R11/08 , H04R11/12
CPC分类号： H04R11/12
摘要： A transducer for scanning or cutting disc-shaped record carriers, in which a movable element is omnidirectionally pivotable, one polepiece being provided for each of the two directions of oscillation. A third polepiece provided in common for the two directions of oscillation is formed by the casing of the transducer.
摘要翻译：一种用于扫描或切割圆盘形记录载体的传感器，其中可移动元件是全方向可枢转的，为两个振动方向中的每一个提供一个极靴。换能器的壳体形成有用于两个振荡方向共同设置的第三极靴。

5. 发明授权

US4011417A Dynamic type pickup 失效
标题翻译：动态拾取
公开(公告)号：US4011417A
公开(公告)日：1977-03-08
申请号：US558656
申请日：1975-03-17
申请人： Tomo Kageyama , Yakichi Yoshinuma
发明人： Tomo Kageyama , Yakichi Yoshinuma
IPC分类号： H04R11/08 , H04R9/12 , H04R9/16 , H04R11/12
CPC分类号： H04R11/12 , H04R9/12 , H04R9/16
摘要： A record pickup is comprised of a magnetic yoke with parallel first and second leg portions. The first leg portion supports a coil. The second leg portion has a bore which resiliently supports a conductive bar opposite the coil. The conductive bar is attached to a stylus. Thus, movement of the stylus in a record groove produces a corresponding current in the coil.
摘要翻译：记录拾取器由具有平行的第一和第二腿部的磁轭组成。第一腿部支撑线圈。第二腿部具有弹性地支撑与线圈相对的导电棒的孔。导电棒连接到触针。因此，触针在记录槽中的移动在线圈中产生相应的电流。

6. 发明授权

US2792456A Vibration translating apparatus 失效
标题翻译：振动平移装置
公开(公告)号：US2792456A
公开(公告)日：1957-05-14
申请号：US27935752
申请日：1952-03-29
申请人： THEODORE LINDENBERG
发明人： THEODORE LINDENBERG
IPC分类号： H04R9/12
CPC分类号： H04R9/12

7. 发明授权

US2593633A Electrodynamic phonograph pickup 失效
标题翻译：电动式留声机拾音
公开(公告)号：US2593633A
公开(公告)日：1952-04-22
申请号：US2047348
申请日：1948-04-12
申请人： DECCA RECORD CO LTD
发明人： UMPLEBY KENNETH F
IPC分类号： H04R9/12
CPC分类号： H04R9/12

8. 发明授权

US2553150A Permanent magnet electrodynamic transducer 失效
标题翻译：永磁电动力传感器
公开(公告)号：US2553150A
公开(公告)日：1951-05-15
申请号：US12404149
申请日：1949-10-28
申请人： EDISON INC THOMAS A
发明人： SEIFRIED ALBERT L
IPC分类号： H04R9/12
CPC分类号： H04R9/12

9. 发明授权

US2516919A Electrodynamic phonograph pickup 失效
公开(公告)号：US2516919A
公开(公告)日：1950-08-01
申请号：US67445646
申请日：1946-06-05
申请人： ATF INC
发明人： ROYSTON MARVIN F
IPC分类号： H04R9/12
CPC分类号： H04R9/12

10. 发明授权

US2509968A Electrodynamic pickup 失效
标题翻译：电动拾音
公开(公告)号：US2509968A
公开(公告)日：1950-05-30
申请号：US68519246
申请日：1946-07-20
申请人： HARTFORD NAT BANK & TRUST CO
发明人： DE BOER JAN , GERRIT SCHENKEL
IPC分类号： H04R9/12
CPC分类号： H04R9/12

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