Use of Slow-Scan Television Systems in Telemedicine, Distance Education, Government, and Industrial Applications [microform] / Glen Southworth
- Bib ID:
- 5555288
- Format:
- Book and Microform
- Author:
- Southworth, Glen
- Online Version:
- https://eric.ed.gov/?id=ED354882
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- Description:
-
- [Washington, D.C.] : Distributed by ERIC Clearinghouse, 1988
- 11 p.
- Summary:
-
Reducing the costs of teaching by television through slow-scan methods is discussed. Conventional television is costly to use, largely because the wide-band communications circuits required are in limited supply. One technical answer is bandwidth compression to fit an image into less spectrum space. A simpler and far less costly answer is to transmit still images only, through what has been called slow-scan television. Transmission rate is reduced and bandwidth can be reduced, with a corresponding increase in the number of video communications channels available. Slow-scan television or "still picture" television is available from several manufacturers, but it is still a very small industry, with most efforts concentrated on equipment designed to operate within the existing telephone network. Satellite experiments with still videos date back to the 1960s, and a variety of techniques can be used for transmission. Several projects have used still video transmission. The most significant project has been a news program service by United Press and a satellite channel focusing on women's issues. The approach has been used in medical education, in other educational endeavors, and by the government for a variety of uses. Although the effectiveness of still video image has been demonstrated, it has not found widescale adoption. (SLD)
- Notes:
-
- ERIC Note: Paper presented at the United Nations International Seminar on the "Development and Application of Satellite Communication Systems" (Beijing, China, September 1988). Faint type.
- May also be available online. Address as at 14/8/18: https://eric.ed.gov/
- Reproduction:
- Microfiche. [Washington D.C.]: ERIC Clearinghouse microfiches : positive.
- Subject:
- Other authors/contributors:
- Colorado Video, Inc., Boulder
- Available From:
- ERIC
- Copyright:
-
In Copyright
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Copyright status was determined using the following information:
- Material type:
- Literary Dramatic Musical
- Published status:
- Published
- Publication date:
- 1988
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