{ "$schema": "/api/schemas/documents.schema.json", "apiVersion": "1.0.0", "generatedAt": "2026-07-09T21:16:49.031Z", "sourcePath": "src/main/data/docs", "docId": "10.5594-M00779", "document": { "abstract": "Many efforts have been made to form a world studio standard for high definition television(HDTV). In addition, HDTV equipment has been developed that shows the high picture quality of HDTV systems. Consequently, HDTV equipment is now expected to find markets in several new application areas and be used in the broadcastiong services in the future.", "abstract$meta": { "confidence": "high", "note": "Backfilled from SMPTE canonical repository (smpte-canonical-audit/canonicalLibrary.*.json)", "originalValue": null, "source": "parsed", "updated": "2026-07-08T00:35:38.133Z", "version": "smpte-canonical-repo@v1" }, "authors": [ { "affiliation": "Central Research Laboratory, Hitachi, Kokubunji, Tokyo 185, Japan", "bio": "Yoshizumi Eto received his B.S.E.E. and Ph.D. degrees both from Tokyo University in 1966 and 1977 respectively.", "name": "Yoshizumi Eto" }, { "affiliation": "Central Research Laboratory, Hitachi, Kokubunji, Tokyo 185, Japan", "bio": "Masuo Umemoto received his B.S.E.E. degree from Kyoto Technical University in 1969. Since joining Central Research Laboratory, Hitachi, Ltd. in 1969, he has been engaged in the research activities for home VTRs, PCM tape recorders, solid state camera and digital VTRs. His research interests are modulation codes and high reliable reproducing circuits for magnetic digital recording. He is a member of the Institute of Television Engineers of Japan. Since joining Central Research Laboratory of Hitachi, Ltd., he has been engaged in developing of home VTRs, TV cameras, facsimile modems and digital TV equipments. Currently, he is a senior researcher of the 5th department in his laboratory, managing the research activities for future digital video recording and TV camera technologies.", "name": "Masuo Umemoto" }, { "affiliation": "Hitachi Denshi, Kodaira, Tokyo 187, Japan", "bio": "Toshiaki Kawamura received his B.S.E.E. degree from Kyushu Institute of Technology in 1958. He has been engaged in developing and designing of VTRs for broadcasting use. Currently he is a deputy general manager of Koganei Works, Hitachi Denshi.", "name": "Toshiaki Kawamura" } ], "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$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00779.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "year": "1986", "year$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00779.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" } }, "copyright$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00779.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docId": "10.5594-M00779", "docId$meta": { "confidence": "high", "note": "Derived from DOI 10.5594/M00779", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docLabel": "SMPTE Meetings and Conferences ( February 1986)", "docLabel$meta": { "confidence": "medium", "note": "Composed from venue title, volume/issue and date", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docTitle": "Considerations for Improvement of HDTV Digital VTR", "docTitle$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00779.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
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