Input sampling circuit and method for processing disc read...

Details Input sampling circuit and method for processing disc read... Input sampling circuit and method for processing disc read...

2005-04-27

2009-06-16

Huber, Paul (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Including sampling or a/d converting

C369S047350

Reexamination Certificate

active

07548504

ABSTRACT:
An input sampling circuit for processing a disc read back signal to generate a digital signal includes an auto gain control (AGC) unit for adjusting a gain value of the disc read back signal, a low-pass filter/equalizer (LPF/EQ) coupled to the AGC unit for low-pass filtering/equalizing the disc read back signal to generate an output signal, and an analog-to-digital converter (ADC) coupled to the LPF/EQ for performing analog-to-digital conversion on the output signal across a conversion range that is narrower than a dynamic range of the output signal to convert the output signal into the digital signal.

REFERENCES:
patent: 2002/0005795 (2002-01-01), Asano

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