Record medium reproducing device

Details Record medium reproducing device Record medium reproducing device

1992-06-11

1995-02-21

Dixon, Joseph L.

Boots, shoes, and leggings

364DIG1, 3642468, G06F 1214

Patent

active

053924134

ABSTRACT:
In a CD-ROM disk reproducing device, for a data read instruction which specifies an address issued frequently from a host computer, irrespective of whether the device has a Lock Cache function, the time required from receipt of a data read instruction up to the actual data transfer is reduced. The data read instruction which specifies an address issued frequently from the host computer is discriminated by a microcomputer constituting a control section in the device and the read data from the address is locked in a storage section (buffer RAM) so as not to be erased. When a data read instruction specifying the same address is received afterward, data is read out directly from the storage section and transferred to the host computer.

REFERENCES:
patent: 4513367 (1985-04-01), Chan et al.
patent: 5249286 (1993-09-01), Alpert et al.
patent: 5253351 (1993-10-01), Yamamoto et al.

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