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Applied Optics

Applied Optics


  • Vol. 20, Iss. 18 — Sep. 15, 1981
  • pp: 3104–3108

Holographic system for filing and retrieving patents

Toshihiro Sugaya, Minoru Ishikawa, Isao Hoshino, and Akito Iwamoto  »View Author Affiliations

Applied Optics, Vol. 20, Issue 18, pp. 3104-3108 (1981)

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A large-capacity high-speed holographic system has been developed for filing and retrieving the patent literature. This machine can store 280,000 pages of the Japanese patents journal (or the U.S. Official Gazette) and any one page can be retrieved within 1 sec. A high-resolution TV camera with 2110 scanning lines and a CRT display terminal with 1055 scanning lines were also developed to clearly represent fine drawings and letters in the patents. The system developed is equipped with a momentary 2.6-Mbyte electric one-frame memory for scanning mode conversion. Any image on the CRT can be printed out on a plain sheet of paper with a laser beam printer.

© 1981 Optical Society of America

Original Manuscript: April 13, 1981
Published: September 15, 1981

Toshihiro Sugaya, Minoru Ishikawa, Isao Hoshino, and Akito Iwamoto, "Holographic system for filing and retrieving patents," Appl. Opt. 20, 3104-3108 (1981)

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  1. T. Okamoto et al. “Video Filing System,” Denshi Tokyo, IEEE 4, 1 (1965).
  2. S. Hayashi et al. “Development of Micro-Fiche Retrieval System HIPACS,” Hitachi Hyoron 41, 57, 12 (1975), in Japanese.
  3. K. Izawa, N. Nakayama, “Document Storage and Retrieval System,” in CLEOS, Digest of Technical Papers (Optical Society of America, Washington, D.C., 1980), paper TUII4.
  4. A. Iwamoto et al. “A Large Capacity, High Retrieval Speed, Holographic Still Picture Filing System,” in Proceedings, Twelfth SMPTE Television Conference (SMPTE, Los Angeles, 1978).
  5. T. Sugaya, “Holographic Image File System for Patent Journals,” in Proceedings, SPSE Twentieth Fall Symposium on Electronic Imaging, Washington, D.C. (1980).
  6. J. E. Warnock, “The Display of Characters Using Gray Level Sample Arrays,” Q. Rep. SIGGRAPH-ACM 14, 302 (1980). [CrossRef]
  7. A. Iwamoto, Appl. Opt. 19, 215 (1980). [CrossRef] [PubMed]

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