公开(公告)号：US4462096A

公开(公告)日：1984-07-24

申请号：US314738

申请日：1981-10-23

Applicant: Satoshi Kusaka

Inventor： Satoshi Kusaka

IPC: G11B7/09 ,  G11B7/12

CPC classification number: G11B7/093

Abstract: A pickup assembly for a disc player includes a magnetic circuit for generating magnetic fluxes perpendicular to each other, a first coil group through which a current flows in a direction perpendicular to the magnetic fluxes, a second coil group through which a current flows in a direction perpendicular to one of the magnetic fluxes, a third coil group through which a current flows in a direction perpendicular to the other of the magnetic fluxes, a bobbin on which the first, second and third coil groups are wound, and a supporting member for supporting the bobbin so as to be movable in the three ways as along X-, Y- and Z axes.

Abstract translation: 用于盘片播放器的拾取组件包括用于产生彼此垂直的磁通的磁路，电流沿与磁通垂直的方向流动的第一线圈组，电流沿着方向流动的第二线圈组 垂直于一个磁通量的第三线圈组，电流沿垂直于另一个磁通量的方向流动的第三线圈组，缠绕有第一，第二和第三线圈组的线轴，以及用于支撑的支撑构件 线轴可以沿着X，Y轴和Z轴三种方式移动。

公开(公告)号：US4214757A

公开(公告)日：1980-07-29

申请号：US36993

申请日：1979-05-08

Applicant: Satoshi Kusaka ,  Kuninori Shino

Inventor： Satoshi Kusaka ,  Kuninori Shino

IPC: G11B3/085 ,  G11B3/095 ,  G11B3/12 ,  G11B3/10

CPC classification number: G11B3/0857 ,  G11B3/08512 ,  G11B3/125

Abstract: A tone arm assembly provided with a motor for moving a tone arm in a horizontal direction with respect to a record disc, a servo circuit for keeping the moving velocity of the tone arm constant, and a positioning servo circuit to operate when the tone arm reaches a reproducing position, in which the positioning servo circuit and the velocity controlling servo circuit are combined together thereby to stop the tone arm quickly at a predetermined position.

Abstract translation: 一种音臂组件，其具有用于相对于记录盘在水平方向上移动音调臂的电动机，用于保持音调臂的移动速度恒定的伺服电路，以及当音调臂到达时操作的定位伺服电路 再现位置，其中定位伺服电路和速度控制伺服电路组合在一起，从而在预定位置快速停止音调臂。