Disk emulation system

Details Disk emulation system Disk emulation system

1991-08-30

1993-06-08

Eng, David Y.

Boots, shoes, and leggings

3642362, 3642212, 3649163, G06F 1200

Patent

active

052186911

ABSTRACT:
Disclosed is a solid state disk emulator system for significantly improving access time, i.e., improving both the seek time and the rotational latency. The disk emulator complies with the SMD interface convention and thus to the central processor and the SMD disk controller, the disk emulator appears as a disk with virtually a zero access time. In one embodiment, the primary systems of the disk emulator are a 66-bit shift register, a parity circuit, a latch circuit, a 66-bit parallel bus and a dynamic random access memory (DRAM) array. Each of these systems interface with control systems of the disk emulator which provide the signals required for the read and write operations of the disk emulator. An error correction process is incorporated in the disk emulator which corrects single bit hard memory errors using only a single parity bit.

REFERENCES:
patent: 3863217 (1975-01-01), Taylor
patent: 3887901 (1975-06-01), Moore
patent: 3891959 (1975-06-01), Tsuji et al.
patent: 3891974 (1975-06-01), Coulter
patent: 4467421 (1984-08-01), White
patent: 4527234 (1985-07-01), Bellay
patent: 4617624 (1986-10-01), Goodman
patent: 4630230 (1986-12-01), Sundet
patent: 4642759 (1987-02-01), Foster
patent: 4727512 (1988-02-01), Birkner
patent: 4780819 (1988-10-01), Kashiwagi
patent: 4789960 (1988-12-01), Willis
patent: 4849875 (1989-07-01), Fairman et al.
IBM Technical Disclosure Bulletin, vol. 27/No. 18, pp. 896-899 (Jun. 1984).

Affiliated with

Also associated with

Rating

Disk emulation system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk emulation system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk emulation system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1948267