Claims
- 1. A device for reading from or writing to optical recording media, said device comprising:a scanning unit, which is equipped with at least two detector units, each said detector unit having at least one detector element; and an evaluation unit coupled to said scanning unit; said detector elements and said evaluation unit being connected to one another and wherein: detector elements of said at least two detector units are connected to the evaluation unit using common conductors.
- 2. A device according to claim 1, characterized in that provision is made of a changeover means for inactivating respective unused detector elements.
- 3. A device according to claim 2, characterized in that the changeover means has switching elements arranged on at least one of the detector units.
- 4. A device according to claim 2, characterized in that the changeover means has a switching signal input.
- 5. A device according to claim 4, characterized in that the switching signal input is identical to a further input of one of the detector units, the further input being otherwise used for a different purpose.
- 6. A device according to claim 5, characterized in that the further input is a reference voltage input.
- 7. A device according to claim 4, characterized in that the switching signal input is connected to a comparator unit for comparing the input signal with a predetermined signal and emitting a switching signal based on the result of the comparison.
- 8. A device according to claim 1, characterized in that two detector units are provided, and one of them is suitable for recording media corresponding to a DVD and one of them is suitable for recording media corresponding to a CD.
- 9. A device according to claim 1, characterized in that a plurality of detector units are provided which are suitable for in each case a specific wavelength used for read-out and/or recording.
Priority Claims (1)
Number |
Date |
Country |
Kind |
198 07 809 |
Feb 1998 |
DE |
|
PRIORITY INFORMATION
The benefit is claimed of the filing date of U.S. application Ser. No. 09/252,525 filed Feb. 18, 1999 (now abandoned) and of German application No. 198 07 809.9 filed Feb. 26, 1998.
US Referenced Citations (13)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0800168 |
Oct 1997 |
EP |
6-215530 |
May 1994 |
JP |
07-153279 |
Jun 1995 |
JP |
Continuations (1)
|
Number |
Date |
Country |
Parent |
09/252525 |
Feb 1999 |
US |
Child |
09/969171 |
|
US |