CD/DVD mode selection control using laser diode voltage
US8588044B2 · kind B2 · utility
0Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2008 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Oct 30, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Circuitry for controlling mode selection of a CD/DVD reader is described. In one embodiment, the CD/DVD reader has a first device having at least one analog output, a second device having at least one digital input and at least one analog input, and an interface circuit coupling the analog output of the first device to the digital input and the analog input in the second device. The interface circuit includes a circuitry to use a single control signal from the analog output of the first device to control the digital input and the analog input in the second device. Other embodiments are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.