Data transfer technique for use with peripheral storage devices

Details Data transfer technique for use with peripheral storage devices Data transfer technique for use with peripheral storage devices

1978-06-21

1980-10-14

Nusbaum, Mark E.

Boots, shoes, and leggings

G06F 1304

Patent

active

042285011

ABSTRACT:
Data processing apparatus wherein circuitry for data transfer between a central processor unit (CPU) and a peripheral storage unit, such as a hard disk storage unit, comprises a data transfer bus by which a block of data words being transferred is supplied to a temporary storage unit capable of storing the entire block. Means are provided to prevent any data transfer between the data bus and the CPU interface unit while the block of data words is transferred between the temporary storage unit and the peripheral storage unit and to permit transfer between the CPU interface unit and the bus when data is not being transferred between the temporary storage unit and the peripheral storage unit.

REFERENCES:
patent: Re27157 (1971-07-01), Herold et al.
patent: 3593314 (1971-07-01), Moll
patent: 3999163 (1976-12-01), Levy
patent: 4007448 (1977-02-01), Sergeant et al.
patent: 4032898 (1977-06-01), Grigoletti
patent: 4050097 (1977-09-01), Miu et al.
patent: 4064489 (1977-12-01), Babb
patent: 4101969 (1978-07-01), Lawson et al.

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