Method and apparatus for communicating formatted data from a mas

Details Method and apparatus for communicating formatted data from a mas Method and apparatus for communicating formatted data from a mas

1995-07-21

1996-07-09

Beausoliel, Jr., Robert W.

Excavating

39518216, 371 401, 371 377, G06F 1110, G06F 308, G11B 2110

Patent

active

055353274

ABSTRACT:
A method to and apparatus for communicating formatted data from mass storage media to a host computer is disclosed. In a preferred embodiment data is received through a serial digital signal processor (DSP) from an optical compact disk. The method and apparatus separates data bytes from auxiliary bytes, and stores them into separate and specific spaces within a DRAM. Error correction is performed after each block of data has been stored. After a given block has been verified, the system controller records the block number. The method and apparatus reduces the amount of address storage required to locate valid blocks of data in the DRAM. The method of the present invention increases the effective rate of transfer of data from the DRAM to a host computer.

REFERENCES:
patent: Re33462 (1990-11-01), Suzuki et al.
patent: 4698810 (1987-10-01), Fukuda
patent: 4800550 (1989-01-01), Yamauchi
patent: 4802152 (1989-01-01), Markvoort et al.
patent: 4843484 (1989-06-01), Kanamaru et al.
Sanyo LC8950 & LC8951 Real-Time Error Correction and Host Interface Professors for CD-I and CD-ROM Applications (Application Note Number E89), published by Sanyo Electric Co., Ltd. (Semiconductor Division), 1989.
X3T9 (I/O Interface) ATA Draft Proposed Standard, published by American National Standards Institute, Feb. 10, 1992.
Fricks, Compact Disc Terminology, published by Disk Manufacturing, Inc., 1992.

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