Optical disk pickup using current mode signal exchanges and systems and methods using the same
US6650614B1 · kind B1 · utility
7Cited by
5References
5Claims
0Family size
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Key dates
| Filing date | Oct 30, 2000 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Dec 8, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/331
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk pickup system includes an array of photodiodes 101 for converting photons reflected from an optical disk into a plurality of electrical signals each representing a channel. Driving circuitry 407, 408 drives at least one of the electrical signals as a current across a conductor of a flexible cable 403. A low impedance load 404 converts the electrical signal driven across the conductor as a current into a voltage for further processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.