Pickup assembly for disc player
US4462096A · kind A · utility
28Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1981 |
| Grant date | Jul 24, 1984 |
| Priority date | — |
| Expiry date | Oct 23, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/093
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.