An HDTV Downconverter for Post-Production
The goal of a unified worldwide standard for HDTV studio origination and international program exchange was recommended by the World Broadcasting Conference in 1983 and remains the ultimate goal of the CCIR. Its achievement is difficult because inherent to its success is full recognition that scanning standards conversion, for all regions, is integral to relating HDTV master programs to existing (and to future) world broadcasting standards. The 1125/60 HDTV proposal is a pragmatic set of scanning parameters upon which such unity can be achieved. Program production for 1125/60 HDTV is now under way in the U.S., Canada, and Japan, and the producers of these programs have an immediate need to deliver their software via the current 525/59.94 broadcast standard. This article describes an 1125/60 HDTV-related standards converter designed to support HDTV post-production and its subsequent downconversion to 525/59.94.
- Print ISSN
- 0036-1682
- Published
- 1990-02
- Content type
- Original Research
- DOI
- 10.5594/J00078