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Journal of Electronic Imaging

ISDN audio-graphics teleconferencing systems
Author(s): Kiyoto Tanaka; Ikuro Oyaizu
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Paper Abstract

An audio-graphics teleconferencing system has been developed that uses ordinary personal computers interconnected over a basic rate (2B+D) ISDN line. The system supports high-speed transmission of 200-dpi resolution documents read in by an optical scanner and presented on the displays of the conference participants. While looking at the same material, the conferees can interactively converse and make handwritten notations on the document via an LCD tablet for all the participants to see. We describe the configuration and performance of the system, focusing mainly on the ISDN based multimedia transmission method and the method for reducing and enlarging binary images.

Paper Details

Date Published: 1 October 1993
PDF: 11 pages
J. Electron. Imag. 2(4) doi: 10.1117/12.150413
Published in: Journal of Electronic Imaging Volume 2, Issue 4
Show Author Affiliations
Kiyoto Tanaka, Nippon Telegraph & Telephone Corp. (Japan)
Ikuro Oyaizu, Nipon Telephone & Telegraph Corp. (Japan)

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