Method of reciprocally recording data on card-like record medium

Details Method of reciprocally recording data on card-like record medium Method of reciprocally recording data on card-like record medium

1988-01-20

1990-10-09

Stephan, Steven L.

Registers

Records

235454, 235480, 369 59, 346 76L, G06K 112, G11B 7007

Patent

active

049623010

ABSTRACT:
In a method of recording data on a card-like record medium in which a data recording operation is performed by moving the card-like record medium reciprocally in normal and reverse directions with respect to a recording head, the data recording operation is performed in the manner that the data are recorded in the same order and the same modulation method when viewed from one direction of the relative and reciprocal movement. Therefore, the card-like record medium can be utilized effectively and the data reading apparatus can be made inexpensive in cost.

REFERENCES:
patent: 4398223 (1983-08-01), Lenelson
patent: 4463444 (1984-07-01), Daniels et al.
patent: 4811321 (1984-03-01), Enari et al.
patent: 4825059 (1989-04-01), Kurihara et al.

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