Recording method and device which provides an optimum setting of

Details Recording method and device which provides an optimum setting of Recording method and device which provides an optimum setting of

1990-06-21

1993-07-06

Psitos, Aristotelis

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 48, 369116, 369 54, G11B 700

Patent

active

052260275

ABSTRACT:
A recording method and corresponding recording apparatus adjusts at least one record carrier-dependent recording parameter (I.sub.s) which influences the quality of the recorded information pattern (58, 59). In determining an optimum setting of the parameter (I.sub.s) a calibration area (21) is selected from a predetermined number of such areas on the record carrier. The selected area is then provided with test patterns recorded at different settings of the recording parameter, and based on the test patterns thus formed an optimum setting of such parameter is determined in accordance with a predetermined criterion. The parameter is adjusted in accordance with such optimum setting thereof during the recording of the information pattern (58, 59). Each time such a calibration is performed an auxiliary pattern is recorded in an auxiliary area (22) assigned to the calibration area employed, which auxiliary pattern indicates that test patterns are present in such calibration area. For making a subsequent calibration, the calibration area to be used is selected on the basis on which of the auxiliary area (22a, . . . , 22d) already include auxiliary patterns.

REFERENCES:
patent: 4189746 (1980-02-01), Valachovic
patent: 4578786 (1986-03-01), McIntosh et al.
patent: 4631713 (1986-12-01), Romas et al.
patent: 4912697 (1990-03-01), Enari et al.
patent: 4916683 (1990-04-01), Mizokami et al.
International Application (PCT); publication No. WO 87/01856; Mar. 26, 1987; Painton et al.

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