Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Patent
1986-10-17
1990-03-20
Faber, Alan
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
369 59, 369 47, 235494, 235487, 235454, G11B 7007, G06K 112
Patent
active
049107259
ABSTRACT:
A method of recording data on a card in which track indicia are laser recorded by a user on at least one end of a card prerecorded with tracks only. Track indicia include start and stop marks defining usable recordable areas, synchronization marks, error codes and track numbers and track termination codes. Start and stop marks may be series of lines recorded in a pattern across the tracks and in addition to demarcating usable recordable areas of the card may indicate the location of track numbers and data areas as well as the particular encoding scheme used on the card. Data blocks may be written on entire tracks or in sectors. When recording errors are detected, the data block is rewritten in a new sector or on another track using the same track number.
REFERENCES:
patent: 3654624 (1972-04-01), Becker et al.
patent: 4142209 (1979-02-01), Hedlund
patent: 4229808 (1980-10-01), Hui
patent: 4308557 (1981-12-01), Dieterich
patent: 4488278 (1984-12-01), Dieterich
patent: 4534031 (1985-08-01), Jewer
patent: 4542288 (1985-09-01), Drexler
patent: 4544835 (1985-10-01), Drexler
patent: 4571716 (1986-02-01), Szerlip
patent: 4598196 (1986-07-01), Pierce et al.
patent: 4634850 (1987-01-01), Pierce et al.
patent: 4652730 (1987-03-01), Marshall
patent: 4692603 (1987-09-01), Brass et al.
patent: 4730293 (1988-03-01), Pierce et al.
Arnold Joseph B.
Drexler Jerome
Drexler Technology Corporation
Faber Alan
Schneck Thomas
Weinhardt Robert A.
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