Standardization of TV Scanning Rates: Consideration of Conversion Factors
Intercontinental exchange of TV programs raises the problem of standards conversion. The case is examined for changing the 525-line system to 625 lines, and vice versa. Common standards are proposed for the video signal but channel spacing, allocation, and sound-to-vision carrier spacing would remain as at present. No changes would be required to receivers or transmitters, and only small changes to studio equipment. Conversion of the 625 line system to 525 lines would give a larger improvement in picture quality than the reverse procedure. No problem is anticipated with N.T.S.C., Iowa or SECAM color systems.
- Print ISSN
- 0361-4573
- Published
- 1963-02
- Content type
- Original Research
- DOI
- 10.5594/J13693
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