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PALplus[1] (or PAL+) is an analogue television broadcasting system aimed to improve and enhance the PAL format by allowing 16:9 (or 1.77:1) aspect ratio broadcasts, while remaining compatible with existing television receivers,[2] defined by International Telecommunication Union (ITU) recommendation BT.1197-1.[1] Introduced in 1993,[3] it followed experiences with the HD-MAC (high definition) and D2-MAC, hybrid analogue-digital widescreen formats that were incompatible with PAL receivers. It was developed at the University of Dortmund in Germany, in cooperation with German terrestrial broadcasters and European and Japanese manufacturers. The system had some adoption across Europe during the late 1990s and helped introduce widescreen TVs in the market, but never became mainstream.[citation needed]
A similar system, developed in Japan at the same time and named EDTV-II/ Wide-aspect Clear-vision, allows for 16:9 NTSC broadcasts.[4][5][6][7][8]
- ^ a b "Recommendation ITU-R BT.1197-1 Enhanced wide-screen PAL TV transmission system (the PALplus system)" (PDF). itu.int.
- ^ "Fluke PM5420 Application Note PALplus" (PDF). assets.fluke.com. Archived from the original (PDF) on 3 March 2016. Retrieved 12 January 2022.
- ^ "EUR-Lex - 31993D0424 - EN". Official Journal L 196. 5 August 199. pp. 48–54.
- ^ Nakayama, K.; Kojima, T.; Miyaguchi, H.; Sawaragi, T.; Yaguchi, Y. (August 5, 1995). "EDTV-II decoder by SVP2 (the 2nd generation of scan-line video processor)". IEEE Transactions on Consumer Electronics. 41 (3): 634–642. doi:10.1109/30.468089 – via IEEE Xplore.
- ^ "The Journal of the Institute of Television Engineers of Japan". www.jstage.jst.go.jp.
- ^ FUKINUKI, Takahiko (March 1991). "EDTV".
- ^ Pollack, Andrew (September 15, 1994). "Japanese Taking to Wide-Screen TV". The New York Times – via NYTimes.com.
- ^ "EDTV2 試験放送 画質評価用スライド放送" – via www.youtube.com.