Disc recording and/or reproducing apparatus that positions the magnetic head in response to a type of disc
US5557589A · kind A · utility
16Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1994 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Oct 4, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc type detection arm contacts a disc type opening formed in a disc cartridge when the disc cartridge is loaded into a recording and/or reproducing apparatus. The disc type detection arm determines the type of disc which has been loaded by the depth of the disc type opening, and controls the positioning of the magnetic head in response thereto. The magnetic head is spaced-apart from the disc when a read-only type disc is loaded, and positioned close to the disc when a read/write disc is loaded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.