{ "$schema": "/api/schemas/documents.schema.json", "apiVersion": "1.0.0", "generatedAt": "2026-07-09T21:16:49.031Z", "sourcePath": "src/main/data/docs", "docId": "10.5594-M00742", "document": { "abstract": "To confirm the feasibility of the international and domestic program transmission via satellites, international transmission experiments from Japan to Australia and from Korea to Japan using the MUSE signal were successfully carried out in 1988. The first transmission was conducted on three-hop basis using CS-2,- INTELSAT, and AUSSAT. The second transmission was the live-broadcasting of the Olympic Games in combination with INTELSAT and BS-2. In both transmissions, the CN ratio of about 17.5 dB, which corresponds to the limit of perception of the noise impairment was obtained. Excellent waveform transmission characteristics were also obtained by employing IF and baseband equalizers. Through these experiments, it was concluded that international and domestic transmission of HDTV can be done by existing satellites and earth stations without modifications as long as modulators and earth stations are connected by an IF signal.", "abstract$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "authors": [ { "affiliation": "Japan Broadcasting Corporation (NHK) Tokyo, Japan", "bio": "Keiichi Kubota received B.S. and Ph.D. degrees from the University of Tokyo, Tokyo, Japan, in 1976 and 1987 respectively. He joined Japan Broadcasting Corporation (NHK) in April 1976. During 1979–1980 he worked at CBS Technology Center as a visiting engineer. Since August 1980 he has been with Science and Technical Research Laboratories of NHK, working in the areas of satellite and terrestrial transmission systems of HDTV, signal processing for HDTV and subjective assessment of the picture quality degraded by noise and distortion. He received the Paper Award from the Institute of Electronics, Information and Communication Engineers of Japan in 1986.", "name": "Keiichi Kubota" }, { "affiliation": "Japan Broadcasting Corporation (NHK) Tokyo, Japan", "bio": "Yuichi Iwadate received B.S. degree from Doshisha University, Kyoto, Japan in 1981. He joined Japan Broadcasting in April 1981. Since August 1985 he has been working on the development of the MUSE system, analysis of distortion, and subjective assessments of the picture quality degraded by noise, interference and distortion.", "name": "Yuichi Iwadate" }, { "affiliation": "Japan Broadcasting Corporation (NHK) Tokyo, Japan", "bio": "Kenzo Seo received B.S. degree in electrical engineering from Keio University, Tokyo, Japan in 1974. Since April 1974 he has been working at Japan Broadcasting Corporation. He is currently Development Engineer of the Technical Administration Department responsible for the development of computer graphic system, HDTV equipment, and HDTV systems.", "name": "Kenzo Seo" }, { "affiliation": "Japan Broadcasting Corporation (NHK) Tokyo, Japan", "bio": "Mutsuo Matsumoto received a B.S. degree in electrical engineering from Waseda University, Tokyo, Japan in 1978. He joined Japan Broadcasting Corporation in April 1978. He is a development engineer of the Engineering Administration Department responsible for the development of HDTV studio equipment and HDTV production systems.", "name": "Mutsuo Matsumoto" } ], "authors$meta": { "confidence": "high", "note": "Object form (schema 2.3.0) migrated from string form via migrateAuthorsToObjectForm.js; bio/affiliation backfilled from _source/SMPTE/HIGHWIRE/ NLM ++", "source": "parsed", "updated": "2026-06-23T00:04:25.562Z", "version": "authors-migrate-object-form@v1" }, "contentType": "orig-research", "contentType$meta": { "confidence": "high", "note": "Canonical-confirmed full paper (summary-abstract set is orig-research in the SMPTE canonical repos); HIGHWIRE-era abstract label was a delivery artifact", "originalValue": "summary-abstract", "source": "resolved", "updated": "2026-07-09T19:12:47.628Z", "version": "contenttype-fixes@v1" }, "copyright": { "holder": "Society of Motion Picture and Television Engineers, Inc.", "holder$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "year": "1989", "year$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" } }, "copyright$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docId": "10.5594-M00742", "docId$meta": { "confidence": "high", "note": "Derived from DOI 10.5594/M00742", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docLabel": "SMPTE Meetings and Conferences ( February 1989)", "docLabel$meta": { "confidence": "medium", "note": "Composed from venue title, volume/issue and date", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docTitle": "International Transmission of HDTV Signals", "docTitle$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docType": "Conference Paper", "docType$meta": { "confidence": "high", "note": "NLM
— SMPTE conference paper", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "doi": "10.5594/M00742", "doi$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "href": "https://doi.org/10.5594/M00742", "href$meta": { "confidence": "high", "note": "Constructed from DOI 10.5594/M00742", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "number": "26", "number$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "pages": "78–92", "pages$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "publicationDate": "1989-02-01", "publicationDate$meta": { "confidence": "high", "note": "Day absent in NLM source — padded to 01", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "publisher": "SMPTE", "publisher$meta": { "confidence": "high", "note": "Normalised to registry \"SMPTE\" convention from NLM publisher-name (The Society of Motion Picture and Television Engineers)", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "publisherLocation": { "city": "White Plains, NY", "city$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" } }, "publisherLocation$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "references": { "bibliographic": [ "orphan/10.5594-M00742/bibr1-10.5594_M00742", "orphan/10.5594-M00742/bibr2-10.5594_M00742", "orphan/10.5594-M00742/bibr3-10.5594_M00742", "orphan/10.5594-M00742/bibr4-10.5594_M00742", "orphan/10.5594-M00742/bibr5-10.5594_M00742", "orphan/10.5594-M00742/bibr6-10.5594_M00742", "orphan/10.5594-M00742/bibr7-10.5594_M00742" ], "bibliographic$meta": { "confidence": "medium", "note": "Extracted from NLM via extractSmpteConferenceRefs.js (orphan-slug-mint)", "source": "parsed", "updated": "2026-07-06T20:02:43.384Z" } }, "resolvedHref": "https://journal.smpte.org/conferences/Better%20Video%20Images:%2023rd%20Annual%20SMPTE%20Television%20Conference/12/", "resolvedHref$meta": { "confidence": "high", "note": "Backfilled from url.validate report #resolvedHref", "originalValue": null, "source": "resolved", "updated": "2026-06-19T20:59:07.439Z" }, "status": { "active": true, "active$meta": { "confidence": "medium", "note": "No explicit status in NLM source — conference papers default active", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" } }, "volume": "1989", "volume$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00742.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" } } }