Control dial and optical disk apparatus having the control dial
US6771582B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2000 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Mar 17, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H19/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk apparatus comprising a control dial unit having a jog dial and a shuttle dial which is concentrically mounted outside the jog dial is provided to solve the problem that when operating the jog dial, the shuttle dial in proximity of the jog dial is also rotated thereby preventing its optical pickup to access to a precise target position to be reproduced. The control dial of the invention is comprised of an outer control dial and an inner control dial which has a smaller diameter than the outer control dial and is arranged within a circumference of the outer control dial, wherein a peripheral corner of an upper surface of the inner control dial protrudes from an upper surface of the outer control dial, and its distance of protrusion is larger than 2 mm and smaller than 90 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.