Mixed mode data slicer with auto calibration and method thereof

Details Mixed mode data slicer with auto calibration and method thereof Mixed mode data slicer with auto calibration and method thereof

2004-07-22

2008-12-30

Tran, Thang V. (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Including sampling or a/d converting

C369S059170, C369S124110

Reexamination Certificate

active

07471607

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.

REFERENCES:
patent: 5974088 (1999-10-01), Chang
patent: 6525684 (2003-02-01), Tsujikawa
patent: 6914861 (2005-07-01), Chou et al.
patent: 7065026 (2006-06-01), Hung et al.
patent: 2004/0027940 (2004-02-01), Minamino et al.

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