Editing PALplus (section)

{{Short description|Analogue widescreen television broadcasting system}}
{{Multiple issues|
{{More citations needed|date=May 2023}}
{{Original research|date=May 2023}}
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[[File:PALplus pattern of the Philips PM5420.png|thumb|PALplus pattern of the [[Philips circle pattern|Philips PM5420]] test pattern generator]]

'''PALplus'''<ref name="auto">{{cite web |title=Recommendation ITU-R BT.1197-1 Enhanced wide-screen PAL TV transmission system (the PALplus system) |url=https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.1197-1-199802-W!!PDF-E.pdf |website=itu.int}}</ref> (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,<ref name="auto2">{{cite web |url=https://assets.fluke.com/appnotes/it_products/B0291A-16U9509_NL_EN.pdf |title=Fluke PM5420 Application Note PALplus |website=assets.fluke.com |access-date=12 January 2022 |archive-url=https://web.archive.org/web/20160303224309/https://assets.fluke.com/appnotes/it_products/B0291A-16U9509_NL_EN.pdf |archive-date=3 March 2016 |url-status=dead}}</ref> defined by [[International Telecommunication Union]] (ITU) recommendation BT.1197-1.<ref name="auto"/> Introduced in 1993,<ref name="auto1">{{cite web |url=https://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:31993D0424:EN:HTML |title=EUR-Lex - 31993D0424 - EN |website=Official Journal L 196 |date=5 August 199 |pages=48–54}}</ref> 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 [[Technical University of Dortmund|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|date=May 2024}} 

A similar system, developed in Japan at the same time and named [[Clear-Vision|EDTV-II/ Wide-aspect Clear-vision]], allows for 16:9 NTSC broadcasts.'''<ref>{{cite journal |last1=Nakayama |first1=K. |last2=Kojima |first2=T. |last3=Miyaguchi |first3=H. |last4=Sawaragi |first4=T. |last5=Yaguchi |first5=Y. |date=August 5, 1995 |title=EDTV-II decoder by SVP2 (the 2nd generation of scan-line video processor) |url=https://ieeexplore.ieee.org/document/468089 |journal=IEEE Transactions on Consumer Electronics |volume=41 |issue=3 |pages=634–642 |doi=10.1109/30.468089 |via=IEEE Xplore |url-access=subscription}}</ref><ref>{{cite web |title=The Journal of the Institute of Television Engineers of Japan |url=https://www.jstage.jst.go.jp/browse/itej1978/49/9/_contents/-char/en |website=www.jstage.jst.go.jp}}</ref><ref name=":8">{{cite web |last=FUKINUKI |first=Takahiko |title=EDTV |date=March 1991 |url=https://search.ieice.org/bin/summary.php?id=e74-b_3_540}}</ref><ref name=":13">{{cite news |last=Pollack |first=Andrew |date=September 15, 1994 |title=Japanese Taking to Wide-Screen TV |work=The New York Times |url=https://www.nytimes.com/1994/09/15/business/japanese-taking-to-wide-screen-tv.html |via=NYTimes.com}}</ref><ref>{{cite web |title=EDTV2 試験放送 画質評価用スライド放送 |url=https://www.youtube.com/watch?v=K7hFBvAHFq8 |via=www.youtube.com}}</ref>'''