Optical disk drive
US4736356A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1986 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Jul 14, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk drive of the type adapted to use an optical disk cartridge formed by an optical disk mounted about a hub within an enclosure. When inserted into the optical disk drive, the cartridge is received and supported by a pan. A control handle for controlling the disk drive can be rotated between a load position, a run position, a spin-down position, and an eject position. The handle is coupled to the pan by a linkage. When the handle is rotated to either its run or spin-down positions, the linkage positions the pan at a run/spin-down position at which the hub of the disk is engaged with a drive spindle. When rotated to either its load or eject positions, the linkage causes the pan to be in a load/eject position at which the cartridge can be inserted into or removed from the pan. The position of the handle is detected by optical sensors which provide signals representative thereof to control circuitry. The control circuitry activates a drive motor when the handle is in its run position, and deactivates the drive motor when the handle is moved to its spin-down position. A spin-down interlock mechanism is interfaced to the control circuitry and permits the handle to be rotate…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.