A SMPTE 292M/OC-48c Video Network Access Unit (VNAU)

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE J
Volume: 109, No. 3, pp. 188–192
Abstract: Transmission of uncompressed high-speed digital SMPTE 292M video data is currently limited to relatively short distances: an electrical cable connection of up to 100 m or a direct optical fiber connection of up to 2 km. A prototype video network access unit (VNAU) implements transport of uncompressed SMPTE 292M serial video data packaged into asynchronous transmission mode (ATM) cells over a synchronous optical network (SONET) OC-48c link. This allows long-distance transport of uncompressed HDTV video using the public switched network. Network performance testing using a Tektronix VNAU, a FORE Systems switch, and the ATDNet was conducted at FORE Systems (Warrendale, PA) and the Naval Research Labs (Washington, DC). Network performance was monitored using control signals from the VNAU direct digital synthesizer (DDS), which allows a straightforward measurement of ATM cell latency without additional hardware.
Publication Date: 2000-03-01
DOI: 10.5594/J08346
ISSN: Print: 0036-1682
Link: https://doi.org/10.5594/J08346
Author(s): Philip S. CrosbyTektronix, Inc., and are currently with Network Elements, Inc., Beaverton, OR 97008
bio
Philip Crosby received a B.S. in applied science from Portland University in 1965. He joined Tektronix, Inc., in 1957 as an intern. Crosby was the principal designer or project leader on many product efforts including oscilloscopes, video waveform monitors, vectorscopes, A/D converters, automatic video digital measurements systems, etc. Crosby led the design of the HDTV format converter at the Advanced Television Center, then later at Charles Rhodes. The format converter was crucial to the evaluation of the HD proponent systems in the early 90s. He has also contributed to several MPEG-2 and OC-48C products. Since retiring from Tektronix, Crosby has joined Network Elements Inc., as chief engineer, where he is currently engaged in the design of high-speed telecommunications equipment. He holds 28 patents.
Scott W. LowreyTektronix, Inc., and are currently with Network Elements, Inc., Beaverton, OR 97008
bio
Scott Lowrey received his BSEE and MSEE from the University of Southern California in 1981 and 1988, respectively. From 1982 to 1989, he worked at TRW Electronics and Defense, designing communications units for high-performance digital satellite systems, including analog-to-digital converters, multiplexers, and error-correction encoders. He then spent several years in the Motorola Government Electronics Group, designing high-speed encryption and decryption units, incorporating SONET and ATM data formats. At the Tektronix Video and Networking Division, he designed high-speed telecommunications systems that are used in the high bit rate transport of uncompressed HDTV digital signals. Lowrey is currently director of product engineering for Network Elements.
Copyright: © 2000 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. ANSI/SMPTE 292M- 1996 , SMPTE Standard of Television—Bit Serial Digial Interface for High-Definition Television Systems. EXTERNAL

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Philip S. Crosby and Scott W. Lowrey; A SMPTE 292M/OC-48c Video Network Access Unit (VNAU), SMPTE Journal ( Volume: 109, Issue: 3, March 2000); SMPTE, 2000. Available at https://doi.org/10.5594/J08346

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Philip S. Crosby and Scott W. Lowrey; A SMPTE 292M/OC-48c Video Network Access Unit (VNAU), SMPTE Journal ( Volume: 109, Issue: 3, March 2000); SMPTE, 2000. Available at https://doi.org/10.5594/J08346

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<span class="citation">Philip S. Crosby and Scott W. Lowrey; <cite>A SMPTE 292M/OC-48c Video Network Access Unit (VNAU)</cite>, SMPTE Journal ( Volume: 109, Issue: 3, March 2000); SMPTE, 2000. Available at <a href="https://doi.org/10.5594/J08346" target="_blank" rel="noopener">https://doi.org/10.5594/J08346</a></span>

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Philip S. Crosby and Scott W. Lowrey; A SMPTE 292M/OC-48c Video Network Access Unit (VNAU), SMPTE Journal ( Volume: 109, Issue: 3, March 2000); SMPTE, 2000
doi: 10.5594/J08346
url: https://doi.org/10.5594/J08346

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Philip S. Crosby and Scott W. Lowrey; <cite id="bib-10-5594-j08346">A SMPTE 292M/OC-48c Video Network Access Unit (VNAU)</cite>, SMPTE Journal ( Volume: 109, Issue: 3, March 2000); SMPTE, 2000
<span class="doi">10.5594/J08346</span>
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