Storage device with buffer control unit

Details Storage device with buffer control unit Storage device with buffer control unit

2006-03-24

2010-10-19

Kindred, Alford W (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

C711S100000, C711S156000, C713S340000, C714S001000, C714S006130, C714S015000

Reexamination Certificate

active

07818477

ABSTRACT:
When a control unit (160) in a storage device (100) detects that a write end command or a data amount to be written has been transmitted from a host device (110), the control unit (160) saves control information required for writing data in a control information save memory (142). The control unit (160) also saves data which has not been written in storage medium into a buffer save memory (152) from a data buffer (151) and releases the busy state for the host device (110). The control unit (160) writes the saved data into a storage medium (120). Even if the power is turned OFF before completion of write, write can be performed into the storage medium (120) by using the saved data when the power is turned ON next time.

REFERENCES:
patent: 5519831 (1996-05-01), Holzhammer
patent: 5596708 (1997-01-01), Weber
patent: 5799200 (1998-08-01), Brant et al.
patent: 6289416 (2001-09-01), Fukushima et al.
patent: 6693840 (2004-02-01), Shimada et al.
patent: 6862673 (2005-03-01), Lee et al.
patent: 7380055 (2008-05-01), Ashmore
patent: 64-076346 (1989-03-01), None
patent: 7-200418 (1995-08-01), None
patent: 10-154101 (1998-06-01), None
patent: 11-143788 (1999-05-01), None
English language Abstract of JP 11-143788.
English language Abstract of JP 64-076346.
English language Abstract of JP 7-200418.
English language Abstract of JP 10-154101.

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