{
  "$schema": "/api/schemas/documents.schema.json",
  "apiVersion": "1.0.0",
  "generatedAt": "2026-07-09T21:16:49.031Z",
  "sourcePath": "src/main/data/docs",
  "docId": "10.5594-M00777",
  "document": {
    "abstract": "The recent digital technologies have greatly improved the performance of industrial and home-use audio equipment. And there exists a similar tendency in the field of broadcast VTR as well. An experimental digital audio recording section has been developed for MII Format VTR that is a new generation broadcast VTR using 1/2 inch tape cassette. The outline of digital signal processing by the time axis compressed extended tape wrap recording system and the element technologies such as coding and error correction are described in this report.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "authors": [
      {
        "affiliation": "Matsushita Electric Industrial Co., Ltd. Central Research Lab. Moriguchi, Osaka, Japan",
        "bio": "Shiro Tsuji was born in 1948, Japan. He received the B.S. degree in Electronics engineering from Nagoya Institute of Technology, Japan in 1971. Since 1971, he has been working for Matsushita Electric Industrial Co., Ltd. in development of optical disc system and digital audio tape recorder. He is engaged in development of digital audio systems for video tape recorder at the Central Research Laboratory.",
        "name": "Shiro Tsuji"
      },
      {
        "affiliation": "Matsushita Electric Industrial Co., Ltd. Central Research Lab. Moriguchi, Osaka, Japan",
        "bio": "Masamitsu Ohtsu was born in 1950, Japan. He received the B.S. degree in Electrical engineering from Ariake Technical College, Japan in 1971 He joined Matsushita Electric Industrial Co., Ltd. in 1971. He has been developing the signal processing circuitry and systems for video tape recorder at the Central Research Laboratory.",
        "name": "Masamitsu Ohtsu"
      },
      {
        "affiliation": "Matsushita Electric Industrial Co., Ltd. Central Research Lab. Moriguchi, Osaka, Japan",
        "bio": "Nobuyoshi Kihara was born in 1950, Japan. He received the B.S. degree in Electrical engineering from Kobe Technical College, Japan in 1971. Since 1971, he has been working for Matsushita Electric Industrial Co., Ltd. in development of digital audio tape recorder and digital audio editing system. He is engaged in development of digital audio systems for video tape recorder at the Central Research Laboratory. He is a member of the Institute of Electronics and Communications Engineers of Japan.",
        "name": "Nobuyoshi Kihara"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Object form (schema 2.3.0) migrated from string form via migrateAuthorsToObjectForm.js; bio/affiliation backfilled from _source/SMPTE/HIGHWIRE/ NLM <contrib-group>+<aff>+<bio>",
      "source": "parsed",
      "updated": "2026-06-23T00:04:25.562Z",
      "version": "authors-migrate-object-form@v1"
    },
    "contentType": "orig-research",
    "contentType$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$meta": {
        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
        "source": "parsed",
        "updated": "2026-05-22T21:44:19.125Z",
        "version": "smpte-conference-paper-nlm@v1"
      },
      "year": "1986",
      "year$meta": {
        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
        "source": "parsed",
        "updated": "2026-05-22T21:44:19.125Z",
        "version": "smpte-conference-paper-nlm@v1"
      }
    },
    "copyright$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "docId": "10.5594-M00777",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from DOI 10.5594/M00777",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "docLabel": "SMPTE Meetings and Conferences ( February 1986)",
    "docLabel$meta": {
      "confidence": "medium",
      "note": "Composed from venue title, volume/issue and date",
      "source": "inferred",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "docTitle": "Digital Audio Recording in M II Format VTR",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "docType": "Conference Paper",
    "docType$meta": {
      "confidence": "high",
      "note": "NLM <article> — SMPTE conference paper",
      "source": "inferred",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "doi": "10.5594/M00777",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "href": "https://doi.org/10.5594/M00777",
    "href$meta": {
      "confidence": "high",
      "note": "Constructed from DOI 10.5594/M00777",
      "source": "inferred",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "number": "27",
    "number$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "pages": "187–200",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "publicationDate": "1986-02-01",
    "publicationDate$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/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
        "source": "parsed",
        "updated": "2026-05-22T21:44:19.125Z",
        "version": "smpte-conference-paper-nlm@v1"
      }
    },
    "publisherLocation$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    },
    "references": {
      "bibliographic": [
        "orphan/10.5594-M00777/bibr1-10.5594_M00777",
        "orphan/10.5594-M00777/bibr2-10.5594_M00777",
        "orphan/10.5594-M00777/bibr3-10.5594_M00777"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "note": "Extracted from NLM <ref-list> via extractSmpteConferenceRefs.js (precheck-reuse)",
        "source": "parsed",
        "updated": "2026-07-06T20:02:43.384Z"
      }
    },
    "resolvedHref": "https://journal.smpte.org/conferences/Digital%20Television%20Tape%20Recording%20and%20Other%20New%20Developments:%2020th%20Annual%20SMPTE%20Television%20Conference/17/",
    "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": "1986",
    "volume$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1986_27/10.5594_M00777.xml)",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
    }
  }
}