Abstract

This paper illustrates an application of a holographic memory to the solution of the problem of storing and addressing 10,000 ideographs. The Kanji ideographs are addressed from a keyboard by the stroke sequence used to handwrite the ideographs. The keyboard generated stroke sequence is compared with all legitimate stroke sequences to determine the location of the desired character in an optical memory. The digital word indicating the location of the desired character causes laser strobing of a rotating hologram disk. The output of the disk is read by a vidicon and displayed for operator verification. When verified, the ideograph is photographed to generate the output film of the photocomposing machine.

© 1970 Optical Society of America

Holographic memory system for Kanji character generation

Isao Satoh, Makoto Kato, Katsuyuki Fujito, and Fumikazu Tateishi
Appl. Opt. 28(13) 2634-2640 (1989)

Write–Read–Erase in Situ Optical Memory Using Thermoplastic Holograms

L H. Lin and H. L. Beauchamp
Appl. Opt. 9(9) 2088-2092 (1970)

OTHER ASPECTS OF OPTICS Optics and Electron Optics as Competitive and Complementary Technologies in Electronics

E. G. Ramberg
Appl. Opt. 9(10) 2294-2298 (1970)

Optics for a Read–Write Holographic Memory

W. C. Stewart and L. S. Cosentino
Appl. Opt. 9(10) 2271-2275 (1970)

HOLOGRAPHIC OPTICAL MEMORY An Optical Read–Write Mass Memory

J. A. Rajchman
Appl. Opt. 9(10) 2269-2271 (1970)