Combining small records into a single record block for recording

Details Combining small records into a single record block for recording Combining small records into a single record block for recording

1992-11-18

1995-01-24

Hajec, Donald

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

360 27, 360 61, 364DIG2, 395425, G11B 509, G11B 502, G11B 1512, G06F 1200

Patent

active

053846699

ABSTRACT:
Information bearing signals are recorded in one of a plurality of record formats on one record medium, such as a magnetic tape, magnetic disk, optical disk, and the like. The format selected may be commanded or based upon record lengths, in bytes. When the record length equals or exceeds a predetermined number of bytes, then one record is recorded in each signal block of the record format. When the record length is less than the predetermined number, then a second format is used which inserts several of the records in one of the signal blocks. The signal block and its packets respectively contain indications of formats such that any one of several formats may be used on one record medium and in one signal block having a plurality of variable length packets. Logical indicators, such as format marks, tape marks, and the like, may separate formats used on the storage medium.

REFERENCES:
patent: 4393445 (1983-07-01), Milligan et al.
patent: 4403286 (1983-09-01), Fry et al.
patent: 4423480 (1983-12-01), Bauer et al.
patent: 4435762 (1984-03-01), Milligan et al.
patent: 4475192 (1984-10-01), Fernow et al.
patent: 4603382 (1986-07-01), Cole et al.
patent: 4644533 (1987-02-01), Braff et al.
patent: 4800550 (1989-01-01), Yamauchi

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