System for optically reading and annotating text on a data card

Details System for optically reading and annotating text on a data card System for optically reading and annotating text on a data card

1985-04-09

1987-04-07

Pitts, Harold I.

Registers

Records

235493, G06K 1307

Patent

active

046563466

ABSTRACT:
A system for reading and recording information on a double-striped card has a first laser and photodetector for reading and writing data on a strip of optical contrast direct-read-after-write laser recording material disposed on one side of the card. A second laser and photodetector read prerecorded data on a strip of optical contrast optical data storage material disposed on the card. This read only strip may be disposed either on the same or opposite sides of the card from the first strip. Independently controlled servo mirrors linked with software or mechanically linked servo mirrors allow simultaneous reading or reading and writing of data on opposite sides of the card. Annotations to prerecorded text from books, journals, manuals and the like may be recorded on the read/write strip in positions corresponding to positions on the read only strip containing corresponding text.

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SPIE, vol. 239, Optical Disk Technology (1982), p. 202.

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