Inventors:
Terrence L. Wong - San Francisco CA, US
John L. Fan - Palo Alto CA, US
David C. Lee - The Peak, HK
Yi Ling - Foster City CA, US
Yung-Cheng Lo - San Leandro CA, US
Steven E. McLaughlin - Decatur GA, US
Laura L. McPheters - Austin TX, US
Richard L. Martin - Berkeley CA, US
Judith C. Powelson - Alameda CA, US
Steven R. Spielman - Berkeley CA, US
David K. Warland - Davis CA, US
Jonathan A. Zingman - Oakland CA, US
Assignee:
LSI Logic Corporation - Milpitas CA
International Classification:
G11B 15/52
Abstract:
A system and method are disclosed for reading a multilevel signal from an optical disc. The method includes reading a raw analog data signal from a disc using an optical detector and adjusting the amplitude of the raw analog data signal. A timing signal is recovered from the amplitude adjusted analog data signal and correction is made for amplitude modulation of the raw analog data signal by processing the raw analog data signal and the timing signal.