Batching data objects for recording on optical disks with maximu

Details Batching data objects for recording on optical disks with maximu Batching data objects for recording on optical disks with maximu

1990-01-16

1990-11-27

Anderson, Lawrence E.

Boots, shoes, and leggings

3649521, G11C 1300, G06F 1300

Patent

active

049741977

ABSTRACT:
Image data objects are accumulated in a relatively rapid access data buffer, such as a combination of main memory and a rapid access magnetic DASD. An optical disk recorder having a record medium with a plurality of addressable sectors each capable of storing a predetermined number of the VTOC entries receives the accumulated data objects along with the associated VTOC entries in a single access whenever the number of accumulated data objects is an inegral number of said predetermined number. A lower threshold for a minimal number of data bytes of the accumulated data objects may be required before such single access data recording operation is effected. An upper threshold of number of data bytes in the accumulated objects is also provided for causing the single access data transfer irrespective of the number of objects being an integral number of said predetermined number. The invention is advantageously practiced with a write-once, read-many record medium.

REFERENCES:
patent: 4489378 (1984-12-01), Dixon et al.
patent: 4575827 (1986-03-01), Kulakowski
patent: 4636946 (1987-01-01), Hartung et al.
patent: 4754399 (1988-06-01), Yamamoto et al.
patent: 4800582 (1986-08-01), D'Agosto
patent: 4811281 (1989-03-01), Okamoto et al.
IBM Technical Disclosure Bulletin, vol. 26, No. 1, June 1983, "Batching Algorithm in Files and Hierarchic Data Bases", by G. M. Wilson, pp. 416-420.
U.S. Patent Application, S/N 030,393, filed 3/26/87 "Modular Data Storage Directories for Large-Capacity Data Storage Units", by W. J. Flannagan et al., Attorney DOcket TU985007.

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