Editing ISDB (section)

===History===
HDTV was invented at [[NHK Science & Technology Research Laboratories]] (Japan Broadcasting Corporation's Science & Technical Research Laboratories). The research for HDTV started as early as the 1960s, though a standard was proposed to the ITU-R (CCIR) only in 1973.<ref>{{Cite web|url=https://digitalcollections.library.cmu.edu/portal/main.jsp?flag=browse&smd=1&awdid=3|title=ArchivalWare >>Login|website=digitalcollections.library.cmu.edu|access-date=2018-09-14}}{{Dead link|date=August 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>

By the 1980s, a high definition television camera, cathode-ray tube, videotape recorder, and editing equipment, among others, had been developed. In 1982 NHK developed MUSE (Multiple sub-Nyquist sampling encoding), the first HDTV video compression and transmission system. [[Multiple sub-Nyquist sampling encoding|MUSE]] used digital video compression, but for transmission [[frequency modulation]] was used after a digital-to-analog converter converted the digital signal.

In 1987, NHK demonstrated MUSE in Washington D.C. as well as NAB. The demonstration made a great impression in the U.S., leading to the development of the [[ATSC Standards|ATSC]] terrestrial DTV system. Europe also developed a DTV system called [[DVB]]. Japan began R&D of a completely digital system in the 1980s that led to ISDB. Japan began terrestrial digital broadcasting, using ISDB-T standard by NHK and commercial broadcasting stations, on 1 December 2003.