Zoned record carrier

Details Zoned record carrier Zoned record carrier

1993-07-02

1995-05-23

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692753, 369 4426, G11B 700

Patent

active

054187737

ABSTRACT:
A record carrier having essentially circular tracks concentrically located around a point of rotation. The record carrier is divided into circular zones each having m tracks, where m is an integer. Each track within a zone is subdivided into n sectors, where n is an integer which is constant per zone and which increases as the zone is more remote from the point of rotation. Each sector including a header portion and a data portion. The header portions in the radial direction in each zone are in line. In each zone the condition of m*n=j*k is satisfied, where is j an integer greater than or equal to 2 and is constant for each zone, and k is an integer.

REFERENCES:
patent: 4530018 (1985-07-01), Hoshino et al.
patent: 4866686 (1989-09-01), Verboom
patent: 5138599 (1992-08-01), Fukushima et al.
patent: 5144552 (1992-09-01), Abe
patent: 5255261 (1993-10-01), Iida et al.
patent: 5278814 (1994-01-01), Deguchi et al.
"Data Interchange On 90 mm Optical Disk Cartridges, Read Only and Rewritable, M.O.", Standard ECMA-154, Jun. 1991, pp. 1-105.

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