The fourth in a series of Rand reports on information transfer problems of the partially sighted reviews earlier reports and describes an experimental secretarial closed circuit TV (CCTV) system which enables the partially sighted to type from a printed or handwritten manuscript. Discussed are experiments using a pseudocolor system to determine…

One of a series on the visual information transfer problems of the partially sighted, the report contains a detailed description of the double X-Y platform, a mechanical device used in conjunction with a closed circuit television system to permit users to read printed or handwritten materials and to take notes on or copy from the material. Also…

A highly interactive multicamera-multimonitor closed circuit television system is described which permits a resource room teacher and her handicapped elementary school students to be in continuous visual communication with one another. On the basis of relatively short-term observation, data is reported to show that the system is of most help to…