Mixed mode data slicer with auto calibration and method thereof
US7471607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2004 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Dec 2, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2562
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a mixed mode circuit for data slice with auto calibration and method thereof, which comprises a data slicer for converting an analog signal into a digital signal; a set of current pump for supplying a variable power supply; a microprocessor for controlling and adjusting the set of current pump; a digital sum value counter for performing an addition or a subtraction operation according to the result outputted by the data slicer; a digital signal processor for reading the internal values of the digital sum value counter and calculating the average of these internal values to obtain a parameter value. With the aforementioned structure, the invention integrates the mixed mode data slicer of analog and digital circuits so as to adopt the merits and eliminate the drawbacks of the pure analog and digital data slicer and thus achieves the objective of reading data from an optical disk better and more accurately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.