Disk tracking and support apparatus
US4120504A · kind A · utility
24Cited by
5References
41Claims
0Family size
Inventor
Key dates
| Filing date | Jul 20, 1976 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Jul 20, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/2009
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Improved apparatus and methods for tracking a stylus on a rotating disk are disclosed. The apparatus preferably takes the form of an inertially balanced four bar linkage. Also disclosed herein are improved apparatus for supporting a rotating disk, improved apparatus for driving a rotating platter which supports a disk and improved apparatus for following a stylus and supplying power thereto as it crosses the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.