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    "abstract": "In previous tutorials in this series, we have examined the serial digital video interface, ancillary data, and error detection and handling (EDH), and have looked into asynchronous transfer mode (ATM). This article will deal with the principal transmission medium for ATM—fiber optics.",
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        "affiliation": "Leitch Technology Centre, Ottawa, Ont., Canada 2E 7S4",
        "bio": "Geoff Snell is manager, systems engineering, at Leitch Technology International, Inc., Ottawa, Ontario, Canada. In that capacity he is responsible for sales of all Leitch products, R&D product definition, and overseeing all aspects of intellectual property, including patents, trademarks, and contractual documents. After graduating in 1981 from Algonquin College of Applied Arts and Technology in Ottawa with a degree in electronic engineering technology, Snell joined the CBC as a senior maintenance technician. He remained there until 1985, when he took the position of marketing manager at Image Video Ltd. In January 1990 he moved to the Leitch Technology Centre and assumed his current responsibilities.",
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    "docTitle": "An Introduction to Fiber Optics and Broadcasting",
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      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/08182015 BACKFILE JOURNAL FRESH/smptej_105_1/MIJR15Vol105No1.xml)",
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      "note": "Era-accurate journal title from SMPTE canonical repository (periodical parent at time of publication) (smpte-canonical-audit/canonicalLibrary.*.json)",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J15850.xml)",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J15850.xml)",
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      "confidence": "high",
      "note": "Normalised to registry \"SMPTE\" convention from NLM publisher-name (The Society of Motion Picture and Television Engineers)",
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J15850.xml)",
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        "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/08182015 BACKFILE JOURNAL FRESH/smptej_105_1/MIJR15Vol105No1.xml)",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J15850.xml)",
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