Accession Number:

AD0655356

Title:

STUDIES OF DISPLAY SYMBOL LEGIBILITY. PART XVI: THE LEGIBILITY OF TELETYPEWRITER SYMBOLS ON TELEVISION

Descriptive Note:

Corporate Author:

MITRE CORP BEDFORD MA

Personal Author(s):

Report Date:

1967-04-01

Pagination or Media Count:

53.0

Abstract:

The legibility of Long Gothic and Murray teletype symbol fonts was studied on television. Subjects identified light symbols on a dark background at four resolutions. The results showed that three special cloud-cover symbols were illegible for all resolutions studied. Under ideal conditions, 10 active lines per symbol height was the minimum recommended resolution for the alphanumeric symbols. The Long Gothic and Murray symbols were equally legible. It is recommended that more legible symbols be used for the three cloud-cover conditions.

Subject Categories:

  • Human Factors Engineering and Man Machine Systems
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE