Method of recording information on optical record medium

Details Method of recording information on optical record medium Method of recording information on optical record medium

1993-02-12

1995-12-05

Voeltz, Emanuel T.

Excavating

371 30, 260 48, G06F 1100

Patent

active

054736145

ABSTRACT:
In a method of recording data on an optical card having a plurality of tracks, each track consisting of a plurality of lines and a guide pattern, the data is divided into thirteen packets 1P to 13P each having thirty-four bytes, corresponding bytes in all the packets are grouped to form thirty-four divisions each having thirteen bytes, each of the bytes in respective divisions is divided into lower significant four bits and higher significant four bits to form sixty-eight frames, and all bits in respective frames are rearranged in the order of significance to form in-line interleaved bit data. The thus formed in-line interleaved bit data is recorded in a predetermined line in a predetermined track on the optical card, while the recording operation is controlled by a clock signal which is derived by optically reading the guide pattern formed in the relevant track. In this manner, the data is interleaved among the single line, and thus the recording operation can be performed at a high speed. Further, the data is recorded at a unit of the packet, so that the track can be utilized efficiently even when the data has a short length.

REFERENCES:
patent: 3761903 (1973-09-01), Bird, Jr. et al.
patent: 4389681 (1983-06-01), Tanaka et al.
patent: 4852101 (1989-07-01), Kobayashi et al.
patent: 5136588 (1992-08-01), Ishijima
patent: 5247499 (1993-09-01), Hayashi et al.

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