Abstract

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

Holographic Information Retrieval System

K. Tsukamoto, A. Ishii, A. Ishida, M. Sumi, and N. Uchida
Appl. Opt. 13(4) 869-874 (1974)

Holographic memory system for Kanji character generation

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

Patent files vs computer age

Edmund L. Andrews
Appl. Opt. 27(21) 4437-4590 (1988)

Computer-aided x-ray holographic imaging system

Takuso Sato, Kimio Sasaki, Hideki Morita, and Kazushige Ando
Appl. Opt. 20(14) 2468-2475 (1981)

Improvement of image quality in holographic microscopy

C. J. Budhiraja and S. C. Som
Appl. Opt. 20(10) 1848-1853 (1981)