0670555-A1 is referenced by 183 patents and cites 10 patents.

A long time optical recording and repeated reproduction of multimedia information is possible. Using a printer system or printing process system, on a recording medium such as a sheet, the so-caled multimedia information in the form of dot codes (36) together with images (32) and characters (34) is recorded. The multimedia information includes audio information such as voices, image information obtainable from a camera and others, and digitally coded data obtainable from a personal computer and others. A pen-like information reproducing device (40) is manually moved to scan the dot codes (36) and to take in the dot codes. The original sound is generated by a voice output device (42) such as an earphone, the original image information is outputted on a display such as a CRT, and the digitally coded original data to a page printer or the like.

Title
Dot code and information recording/reproducing system for recording/reproducing dot code.
Application Number
EP19930921074 19930928
Publication Number
0670555 (A1)
Application Date
September 28, 1993
Publication Date
September 6, 1995
Inventor
Morita Kazuhiko
JP
Wakamatsu Seiichi
JP
Akamine Yoshikazu
JP
Matsui Shinzo
JP
Mori Takeshi
JP
Fujimori Hiroyoshi
JP
Nagasaki Tatsuo
JP
Assignee
Olympus Optical Co
JP
IPC
G11B 07/00
G06K 01/12
H04N 01/32
H04N 01/21
H04N 01/00
G11B 07/013
G11B 07/00
G09B 05/00
G06K 19/06
G06F 17/30
H04N 01/32
H04N 01/21
H04N 01/00
G11B 07/013
G11B 07/0033
G09B 05/06
G06K 19/06
G06F 17/30
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