Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Patent
1997-08-18
2000-05-02
Gossage, Glenn
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
711167, 369 32, 369 33, 713400, G06F 1300, G11B 1722
Patent
active
06058453&
ABSTRACT:
A disc drive apparatus and a method for synchronizing information components read from a compact disc media are described. The method includes selecting a start minutes/seconds/frames MSF for a data component and triggering a transfer of the data component to a buffer when the start minutes/seconds/frames for the data is detected. The method also includes selecting a start minutes/seconds/frames for a subcode component and triggering a transfer of the subcode component to the buffer when the start minutes/seconds/frames for the subcode is detected. A buffer manager monitors the contents of the buffer and counts the data and subcode components through separate counters. The buffer manager releases the data component and the subcode component to a host from the buffer when synchronization of the data component and the subcode component is detected. Separate counters may be used to signify when the data component and the subcode component have been received by the buffer, and the selecting of the start minutes/seconds/frames may be performed by an auto-start integrated circuit state machine. The apparatus may also include an error detection and correction (EDAC) unit for checking the integrity of a data block containing the data component and the subcode component before the block is released to the host.
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Galanthay Theodore E.
Gossage Glenn
Jorgenson Lisa K.
Slater Steven
STMicroelectronics Inc.
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