Dynamic magnetic information storage or retrieval – General processing of a digital signal
Reexamination Certificate
2011-01-18
2011-01-18
Tzeng, Fred (Department: 2627)
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Reexamination Certificate
active
07872823
ABSTRACT:
Various embodiments of the present invention provide systems and methods for gain control. For example, some embodiments of the present invention provide variable gain control circuits. Such circuits include a zero forcing loop generating a zero forcing feedback and a least mean square loop generating a least mean square feedback. An error quantization circuit generates a hybrid feedback based upon a threshold condition using the zero forcing feedback and the least mean square feedback. A variable gain amplifier is at least in part controlled by a derivative of the hybrid feedback.
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Lee Yuan Xing
Liu Jingfeng
Mathew George
Park Jongseung
Song Hongwei
Hamilton, DeSanctis & Cha (LSI)
LSI Corporation
Tzeng Fred
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