{ "$schema": "/api/schemas/documents.schema.json", "apiVersion": "1.0.0", "generatedAt": "2026-07-09T21:16:49.031Z", "sourcePath": "src/main/data/docs", "docId": "10.5594-M00647", "document": { "abstract": "The advantages of high packing density in a digital VTR are expected to be a low tape consumption, reduced size and weight of the equipment and easier cassettability. We can also expect that higher packing density will make possible the perfection of the digital recording capability of high definition TV systems. For these reasons, the present authors have recently been concerned with the feasibility of digital video tape recording attaching great importance to higher packing density [1–3]. We now have a much clearer idea of the potential of digital video tape recording than previously, although much work remains to be done.", "abstract$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": "Sony Corporation Tokyo, Japan", "bio": "Masahiko Morizono is Senior Managing Director and General Manager of the Communication Products Group of Sony Corp., Tokyo, Japan. He received his MS degree in 1949 in Electrical Engineering from the University of Tokyo. He joined the Sony Audio Engineering Department in 1953. He was the Project Manager of the helical scan video tape recorder, General Manager of the Audio Division and General Manager of the Video Division. Mr. Morizono is the recipient of the Special Citation Award at the 10th Montreux Television Symposium, and the David Sarnoff Gold Medal at the 120th SMPTE Technical Conference.", "name": "M. Morizono" }, { "affiliation": "Sony Corporation Tokyo, Japan", "bio": "Hirofumi Yoshida is General Manager of the Research and Development Division and the Video Project Office of the Communication Products Group, Sony Corp. He received the BS degree in Electrical Engineering in 1953 from the University of Iwate. He joined Sony Corp. as Senior Electronic Engineer in 1960, where he was involved in the development of the analog audio tape recorder. From 1968 to 1978 he was Head of the Systems Research Laboratory at the Sony Research Center, and was involved in the research work on digital techniques in signal processing, recording, and solid-state imaging.", "name": "H. Yoshida" }, { "affiliation": "Sony Corporation Tokyo, Japan", "bio": "Yoshitaka Hashimoto received his BS degree in Electronic Engineering from the University of Electro-Communications in 1964, and joined the Research Division of Sony Corp. the same year. In 1968 he received his MS degree in Electrical Engineering from Stanford University, California. From 1972 to 1978 he was involved in the research work on digital signal processing of audio and video signals at the Sony Research Center. Since 1978 he has been Manager of the R&D Division of the Communication Products Group, developing digital video recording technology.", "name": "Y. Hasimoto" }, { "affiliation": "Sony Corporation Tokyo, Japan", "bio": "Takeo Eguchi joined Sony Corp. in 1967 after graduating from Tokyo University of Technology, where he received his Bachelor of Science in Electrical Engineering. From 1970 to 1977 he studied European television and video technical standards as well as the European marketing in France. From 1977 to 1978 Mr. Eguchi was invited by the Massachusetts Institute of Technology as a Visiting Scientist to study digital processing and data transmission. In August of 1978, on his return to Japan, he joined the Digital Recording Project Team of the Sony Corp. At present he is working as the Sony International Technical Coordinator of the Digital Video Project, and is a member of the Task Force on Digital Component Coding in the Society of Motion Picture and Television Engineers.", "name": "T. Eguchi" } ], "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$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00647.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "year": "1981", "year$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00647.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" } }, "copyright$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00647.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docId": "10.5594-M00647", "docId$meta": { "confidence": "high", "note": "Derived from DOI 10.5594/M00647", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docLabel": "SMPTE Meetings and Conferences ( February 1981)", "docLabel$meta": { "confidence": "medium", "note": "Composed from venue title, volume/issue and date", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docTitle": "Digital Video Tape Recording with Increased Packing Density—Progress Report", "docTitle$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00647.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docType": "Conference Paper", "docType$meta": { "confidence": "high", "note": "NLM
— SMPTE conference paper", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "doi": "10.5594/M00647", "doi$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00647.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "href": "https://doi.org/10.5594/M00647", "href$meta": { "confidence": "high", "note": "Constructed from DOI 10.5594/M00647", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "number": "22", "number$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00647.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "pages": "34–44", "pages$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00647.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "publicationDate": "1981-02-01", "publicationDate$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_M00647.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" } }, "publisherLocation$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00647.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "references": { "bibliographic": [ "orphan/10.5594-M00647/bibr1-10.5594_M00647", "orphan/10.5594-M00647/bibr2-10.5594_M00647", "orphan/10.5594-M00647/bibr3-10.5594_M00647", "orphan/10.5594-M00647/bibr4-10.5594_M00647", "orphan/10.5594-M00647/bibr5-10.5594_M00647" ], "bibliographic$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/Television%20Technology%20in%20the%2080s:%2015th%20Annual%20SMPTE%20Television%20Conference/5/", "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": "1981", "volume$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00647.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" } } }