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vertical interval reference |
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vertical interval reference [′vərd·ə·kəl ¦in·tər·vəl ′ref·rəns] (electronics) A reference signal inserted into a television program signal every ¹⁄₆₀ second, in line 19 of the vertical blanking period between television frames, to provide references for luminance amplitude, black-level amplitude, sync amplitude, chrominance amplitude, and color-burst amplitude and phase. Abbreviated VIR. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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