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  "docId": "SMPTE.ST294.2001",
  "document": {
    "abstract": "This standard defines two alternatives for bit-serial interfaces for the 720 × 483 active line at 59.94-Hz progressive scan digital signal for production, defined in ANSI/SMPTE 293M. Interfaces for coaxial cable are defined, each having a high degree of commonality with interfaces operating in accordance with ANSI/SMPTE 259M (BTA Report T-1004 contains additional information regarding the application of these interfaces in practical systems): (a) Dual-link interface (4:2:2P): Each link operating at 270 Mb/s, in which the active data in the Y′, C′B, C′R format (equivalent to 8:4:4) are transparently divided, line sequentially, into two data streams, each equivalent to the 4:2:2 component signal of ANSI/SMPTE 259M. (b) Single-link interface (4:2:0P): Operating at 360 Mb/s, in which the active data representing the colordifference components in the Y′, C′B, C′R format (equivalent to 8:4:4) are field quincunx down-converted by a factor of two, prior to reformatting with the full luminance data, into a single data stream equivalent to the component signal of ANSI/SMPTE 259M (but at a higher data rate, conceptually 8:4:0). — NOTES (1) The data rate of 360 Mb/s is related by a factor of 4/3 to the basic data rate of 270 Mb/s specified for 4:2:2 component signals in ANSI/SMPTE 259M. (2) The down-conversion of the color-difference components results in an equivalent spatial sampling grid for each that is similar in the horizontal and vertical dimension. (3) The term line in this standard refers to the digital line in the 483-line frame raster as described in ANSI/SMPTE 293M.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "approvalDate": "2001",
    "approvalDate$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "copyright": {
      "holder": "Society of Motion Picture and Television Engineers, Inc.",
      "holder$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.832Z"
      },
      "year": "2001",
      "year$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.832Z"
      }
    },
    "copyright$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "docId": "SMPTE.ST294.2001",
    "docId$meta": {
      "confidence": "high",
      "note": "Calculated from parsed/inferred metadata",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st294/20011205-pub/",
      "updated": "2025-10-12T23:28:52.664Z"
    },
    "docLabel": "SMPTE ST 294:2001",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from parsed/inferred typenumber/number/date",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st294/20011205-pub/",
      "updated": "2025-10-12T23:28:52.664Z"
    },
    "docNumber": "294",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubNumber meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st294/20011205-pub/",
      "updated": "2025-10-12T23:28:52.664Z"
    },
    "docSuiteTitle": "Television",
    "docSuiteTitle$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubSuiteTitle meta tag, or derived from wrapper title for PDF releases",
      "originalValue": null,
      "source": "parsed",
      "updated": "2025-12-12T21:24:13.345Z",
      "version": "extractDocs.js@commit:e5213a0e988e"
    },
    "docTitle": "720 x 483 Active Line at 59.94-Hz Progressive Scan Production - Bit-Serial Interfaces",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubTitle, or derived from wrapper title for PDF releases",
      "originalValue": "Television - 720 x 483 Active Line at 59.94-Hz Progressive Scan Production - Bit-Serial Interfaces",
      "overridden": true,
      "source": "parsed",
      "updated": "2025-12-12T21:24:13.345Z",
      "version": "extractDocs.js@commit:e5213a0e988e"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Publication type parsed from HTML",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st294/20011205-pub/",
      "updated": "2025-10-12T23:28:52.664Z"
    },
    "doi": "10.5594/SMPTE.ST294.2001",
    "doi$meta": {
      "confidence": "medium",
      "note": "Constructed from parsed/inferred type/date",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st294/20011205-pub/",
      "updated": "2025-10-12T23:28:52.664Z"
    },
    "familyId": "294",
    "familyId$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "group": "smpte-10e-tc",
    "group$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "href": "https://doi.org/10.5594/SMPTE.ST294.2001",
    "href$meta": {
      "confidence": "high",
      "note": "URL generated and verified via redirect resolution",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st294/20011205-pub/",
      "updated": "2025-10-12T23:28:52.664Z"
    },
    "icsCodes": [
      {
        "code": "33.160.40",
        "description": "Video systems"
      },
      {
        "code": "33.170",
        "description": "Television and radio broadcasting"
      }
    ],
    "icsCodes$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "isbn": "978-1-61482-432-9",
    "isbn$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "keywords": [
      "Communication",
      "Networking and Broadcast Technologies",
      "Interfaces",
      "Television",
      "Interface",
      "SDI"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "pages": "1–13",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "productNumber": "SSD001433",
    "productNumber$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "publicationDate": "2001-12-05",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubDateTime meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st294/20011205-pub/",
      "updated": "2025-10-12T23:28:52.664Z"
    },
    "publisher": "SMPTE",
    "publisher$meta": {
      "confidence": "high",
      "note": "Parsed from HTML publisher meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st294/20011205-pub/",
      "updated": "2025-10-12T23:28:52.664Z"
    },
    "publisherLocation": {
      "city": "White Plains, NY",
      "city$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.832Z"
      },
      "country": "USA",
      "country$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.832Z"
      }
    },
    "publisherLocation$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "references": {
      "bibliographic": [
        "SMPTE.ST125.1995"
      ],
      "bibliographic$meta": {
        "confidence": "high",
        "note": "Extracted from sibling -ref.xml via extractSmpteSourceRefs.js",
        "source": "parsed",
        "updated": "2026-05-18T22:55:23.435Z"
      },
      "normative": [
        "SMPTE.RP184.1996",
        "IEC.60169-8",
        "SMPTE.ST259.1997",
        "SMPTE.ST293.1996",
        "SMPTE.ST291.1998"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Extracted from sibling -ref.xml via extractSmpteSourceRefs.js",
        "source": "parsed",
        "updated": "2026-05-18T23:48:48.871Z"
      }
    },
    "releaseTag": "20011205-pub",
    "releaseTag$meta": {
      "confidence": "high",
      "note": "Release tag parsed from URL folder structure",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st294/20011205-pub/",
      "updated": "2025-10-12T23:28:52.664Z"
    },
    "resolvedHref": "https://pub.smpte.org/doc/st294/20011205-pub/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": "https://my.smpte.org/s/product-details?id=a1BVR0000007Nev",
      "overridden": true,
      "source": "resolved",
      "updated": "2025-10-30T22:51:30.393Z",
      "version": "extractDocs.js@commit:ee2844fb1cf2"
    },
    "standardId": "20681",
    "standardId$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-294-2001_1/st0294-2001.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s) and other status values",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-12T23:28:52.664Z"
      },
      "amended": false,
      "amended$meta": {
        "confidence": "high",
        "note": "Parsed from wrapper #amendments",
        "originalValue": null,
        "source": "parsed",
        "updated": "2025-10-12T23:28:52.664Z"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s)",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-12T23:28:52.664Z"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s)",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-12T23:28:52.664Z"
      }
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}