Knowledge (XXG)

Vertical blanking interval

Source 📝

43: 317:
While digital video interconnects (such as DVI and HDMI) generally do have a "vertical blanking" part of the datastream, they are unable to carry closed caption text or most of the other items that, in analog TV interconnects, are transmitted during the "vertical blanking interval". This can lead to
221:
require none, but the standards were established when the delay was needed (and to allow the continued use of older equipment). Blanking of a CRT may not be perfect due to equipment faults or brightness set very high; in this case a white retrace line shows on the screen, often alternating between
140: 213:; the magnetic field, and hence the position being drawn, cannot change instantly. Additionally, the speed of older circuits was limited. For horizontal deflection, there is also a pause between successive lines, to allow the beam to return from right to left, called the 286:
On many consoles there is an extended blanking period, as the console opts to paint graphics on fewer lines than the television would natively allow, permitting its output to be surrounded by a border. On some very early machines such as the
187:
and there can be a VBI after each frame or field. In interlaced video a frame is made up of 2 fields. Sometimes in interlaced video a field is called a frame which can lead to confusion.
1417: 171:, is the time between the end of the final visible line of a frame or field and the beginning of the first visible line of the next frame or field. It is present in analog television, 206:
do not supply image information during the blanking period. Digital displays usually will not display incoming data stream during the blanking interval even if present.
291:, the programmer is in full control of video output and therefore may select their own blanking period, allowing arbitrarily few painted lines. On others such as the 1410: 60: 1844: 1122: 1046: 990: 949: 2143: 1403: 1379: 378: 577: 283:. This is especially true in video game systems, where the fixed frequency of the blanking period might also be used to derive in-game timing. 2207: 2180: 2153: 2126: 1874: 1190: 1036: 972: 107: 222:
fairly steep diagonals from right to left and less-steep diagonals back from left to right, starting in the lower right of the display.
79: 1429: 209:
The VBI was originally needed because of the inductive inertia of the magnetic coils which deflect the electron beam vertically in a
2100: 126: 86: 897: 2116: 2223: 1759: 1348: 1112: 1041: 539: 2243: 1923: 863: 799: 723: 64: 279:, or to provide a time reference for when switching the source buffer for video output can happen without causing a visible 93: 1894: 1723: 1160: 763: 687: 611: 292: 1966: 1667: 1437: 1343: 1180: 1094: 341: 214: 75: 2197: 2170: 2090: 1864: 371: 1764: 1490: 1480: 1475: 1470: 1460: 1455: 1450: 1445: 1107: 1051: 880: 816: 758: 753: 748: 743: 738: 733: 697: 672: 419: 309:
scheme inserts pulses in the VBI, where the recorder expects a constant level, to disrupt recording to videotapes.
230: 53: 1677: 1322: 1211: 856: 851: 841: 768: 667: 346: 261: 1231: 662: 331: 176: 229:(to carry digital data), since nothing sent during the VBI is displayed on the screen; various test signals, 1996: 1869: 1918: 1884: 1879: 1839: 1692: 1632: 1353: 707: 364: 246: 2053: 1790: 1338: 1185: 1175: 1165: 1023: 728: 100: 2032: 2017: 1928: 1754: 1662: 1373: 1333: 1076: 1056: 982: 964: 702: 626: 203: 172: 275:
The pause between sending video data is sometimes used in real time computer graphics to modify the
139: 1971: 1933: 1834: 1794: 1328: 919: 1859: 1809: 1155: 782: 218: 2203: 2176: 2149: 2122: 2096: 1986: 1943: 1804: 1612: 1608: 1426: 1221: 1170: 652: 410: 319: 234: 184: 1913: 1854: 1697: 1647: 1368: 833: 791: 303: 302:
use the known black level of the vertical blanking pulse to set their recording levels. The
210: 195: 191: 180: 2012: 1904: 1829: 1785: 1652: 1363: 1195: 306: 1395: 1991: 1819: 1733: 1622: 1318: 1313: 1216: 1144: 1132: 1031: 927: 631: 280: 250: 2237: 1707: 1657: 1540: 1536: 1526: 1522: 1518: 1514: 1510: 1506: 1502: 1498: 1494: 1484: 1464: 1140: 1005: 907: 902: 561: 557: 517: 513: 509: 505: 501: 497: 493: 489: 485: 445: 427: 2058: 1849: 1738: 1672: 1642: 1567: 636: 603: 457: 276: 143:
1135×624 4fsc decoded frame (Luma) from a Composite 4fsc decode of a LaserDisc via
31: 17: 2027: 2022: 1961: 1687: 1627: 1617: 692: 351: 336: 226: 199: 152: 42: 1956: 1889: 1824: 1637: 1150: 1084: 995: 954: 288: 198:
is usually supplied during this period to avoid painting the retrace line—see
144: 2063: 2048: 1981: 1976: 1951: 1799: 1780: 1358: 937: 477: 437: 225:
In analog television systems the vertical blanking interval can be used for
217:. Modern CRT circuitry does not require such a long blanking interval, and 356: 1814: 1682: 1532: 1236: 1226: 1102: 677: 616: 549: 269: 238: 1587: 1066: 1013: 529: 1562: 657: 593: 453: 254: 242: 320:
closed captioning § Digital television interoperability issues
1728: 1592: 1582: 1577: 890: 821: 621: 533: 467: 461: 387: 265: 257:
use) and other digital data can be sent during this time period.
1557: 1308: 1117: 1061: 944: 885: 873: 868: 846: 809: 804: 449: 260:
In U.S. analog broadcast television, line 19 was reserved for a
1399: 1297: 398: 360: 272:
service contemplated the use of line 22 for data transmission.
1572: 932: 525: 521: 299: 36: 245:
copy-protection indicators, and various data encoded by the
2145:
Video Demystified: A Handbook for the Digital Engineer
2041: 2005: 1942: 1903: 1773: 1747: 1716: 1601: 1550: 1436: 1204: 1131: 1093: 1075: 1022: 1004: 981: 963: 918: 832: 790: 781: 716: 645: 602: 586: 570: 548: 476: 436: 418: 409: 67:. Unsourced material may be challenged and removed. 295:, a predefined blanking period could be extended. 179:and other signals. Here the term field is used in 2089:Weise, Marcus; Weynand, Diana (12 October 2012). 2172:Digital Video and HD: Algorithms and Interfaces 1411: 372: 8: 313:Vertical blanking interval in digital video 30:For vertical intervals in cartography, see 2121:. Taylor & Francis. 12 November 2012. 1418: 1404: 1396: 1294: 787: 415: 406: 395: 379: 365: 357: 127:Learn how and when to remove this message 1845:Output power of an analog TV transmitter 1267: 1265: 138: 2081: 1249: 1259:Also used in China's DVB-S/S2 network. 2169:Poynton, Charles (27 February 2012). 1875:Direct-broadcast satellite television 1255: 1253: 27:Time between drawing frames or fields 7: 2196:Compesi, Ronald (19 November 2015). 202:for details; signal sources such as 65:adding citations to reliable sources 2118:Broadcast Engineer's Reference Book 1765:Vestigial sideband modulation (VSB) 2199:Video Field Production and Editing 25: 183:, and the term frame is used in 41: 1760:Quadrature amplitude modulation 52:needs additional citations for 1924:Television channel frequencies 268:captioning data. The obsolete 1: 1895:Digital television transition 1724:Multichannel television sound 764:Field-sequential color system 293:Nintendo Entertainment System 264:and line 21 was reserved for 2142:Jack, Keith (8 April 2011). 1967:Field strength in free space 1668:Horizontal blanking interval 1344:Reverse Standards Conversion 342:Horizontal blanking interval 215:horizontal blanking interval 76:"Vertical blanking interval" 1865:Superheterodyne transmitter 2260: 1703:Vertical blanking interval 157:vertical blanking interval 29: 1678:Nominal analogue blanking 1304: 1293: 1245: 405: 394: 347:Nominal analogue blanking 262:Ghost-canceling reference 2095:. Taylor & Francis. 332:Vertical blank interrupt 1997:Television interference 1870:Television receive-only 388:Broadcast video formats 1919:Microwave transmission 1885:Terrestrial television 1880:Television transmitter 1840:Intermediate frequency 1633:Chrominance subcarrier 1354:Television transmitter 148: 2244:Television technology 1791:Broadcast transmitter 1339:MPEG transport stream 1166:MPEG-1 Audio Layer II 729:Mechanical television 637:Zweikanalton (A2/IGR) 204:television broadcasts 163:), also known as the 142: 2033:Zero reference pulse 2018:Field strength meter 1755:Frequency modulation 1663:Horizontal scan rate 1374:Widescreen signaling 1349:Standards conversion 1334:Moving image formats 249:protocol (e.g., the 61:improve this article 1972:Noise (electronics) 1835:Intercarrier method 1795:Transmitter station 1430:broadcasting topics 1329:Display motion blur 219:thin panel displays 1860:Split sound system 1810:Differential phase 1380:Analogue TV Topics 149: 2209:978-1-317-35110-8 2182:978-0-12-391932-8 2155:978-0-08-055395-5 2128:978-1-136-02417-7 2072: 2071: 1987:Radiation pattern 1805:Differential gain 1427:Analog television 1393: 1392: 1389: 1388: 1289: 1288: 1285: 1284: 1281: 1280: 1171:MPEG Multichannel 777: 776: 235:closed captioning 185:progressive video 165:vertical interval 137: 136: 129: 111: 18:Vertical interval 16:(Redirected from 2251: 2228: 2227: 2220: 2214: 2213: 2193: 2187: 2186: 2166: 2160: 2159: 2139: 2133: 2132: 2113: 2107: 2106: 2086: 1914:Frequency offset 1855:Residual carrier 1800:Cavity amplifier 1698:Television lines 1420: 1413: 1406: 1397: 1369:Video processing 1299:Technical issues 1295: 1272: 1269: 1260: 1257: 788: 520:(Color systems: 448:(Color systems: 416: 407: 396: 381: 374: 367: 358: 192:cathode ray tube 181:interlaced video 132: 125: 121: 118: 112: 110: 69: 45: 37: 21: 2259: 2258: 2254: 2253: 2252: 2250: 2249: 2248: 2234: 2233: 2232: 2231: 2226:. 11 June 1979. 2222: 2221: 2217: 2210: 2195: 2194: 2190: 2183: 2168: 2167: 2163: 2156: 2141: 2140: 2136: 2129: 2115: 2114: 2110: 2103: 2092:How Video Works 2088: 2087: 2083: 2078: 2073: 2068: 2037: 2013:Distortionmeter 2001: 1938: 1899: 1830:Frequency mixer 1786:Antenna (radio) 1769: 1743: 1712: 1653:Composite video 1597: 1546: 1432: 1424: 1394: 1385: 1364:Video on demand 1309:14:9 compromise 1300: 1277: 1276: 1275: 1270: 1263: 1258: 1251: 1241: 1200: 1196:MPEG-H 3D Audio 1127: 1089: 1071: 1018: 1000: 977: 959: 914: 828: 773: 712: 641: 598: 582: 566: 544: 472: 432: 401: 390: 385: 328: 315: 307:copy protection 251:content ratings 133: 122: 116: 113: 70: 68: 58: 46: 35: 28: 23: 22: 15: 12: 11: 5: 2257: 2255: 2247: 2246: 2236: 2235: 2230: 2229: 2215: 2208: 2188: 2181: 2161: 2154: 2134: 2127: 2108: 2101: 2080: 2079: 2077: 2074: 2070: 2069: 2067: 2066: 2061: 2056: 2051: 2045: 2043: 2039: 2038: 2036: 2035: 2030: 2025: 2020: 2015: 2009: 2007: 2003: 2002: 2000: 1999: 1994: 1989: 1984: 1979: 1974: 1969: 1964: 1959: 1954: 1948: 1946: 1940: 1939: 1937: 1936: 1931: 1926: 1921: 1916: 1910: 1908: 1901: 1900: 1898: 1897: 1892: 1887: 1882: 1877: 1872: 1867: 1862: 1857: 1852: 1847: 1842: 1837: 1832: 1827: 1822: 1820:Dipole antenna 1817: 1812: 1807: 1802: 1797: 1788: 1783: 1777: 1775: 1771: 1770: 1768: 1767: 1762: 1757: 1751: 1749: 1745: 1744: 1742: 1741: 1736: 1734:Sound-in-Syncs 1731: 1726: 1720: 1718: 1714: 1713: 1711: 1710: 1705: 1700: 1695: 1690: 1685: 1680: 1675: 1670: 1665: 1660: 1655: 1650: 1645: 1640: 1635: 1630: 1625: 1623:Blanking level 1620: 1615: 1605: 1603: 1599: 1598: 1596: 1595: 1590: 1585: 1580: 1575: 1570: 1565: 1560: 1554: 1552: 1548: 1547: 1545: 1544: 1530: 1488: 1478: 1473: 1468: 1458: 1453: 1448: 1442: 1440: 1434: 1433: 1425: 1423: 1422: 1415: 1408: 1400: 1391: 1390: 1387: 1386: 1384: 1383: 1376: 1371: 1366: 1361: 1356: 1351: 1346: 1341: 1336: 1331: 1326: 1319:Digital cinema 1316: 1314:Broadcast-safe 1311: 1305: 1302: 1301: 1298: 1291: 1290: 1287: 1286: 1283: 1282: 1279: 1278: 1274: 1273: 1261: 1248: 1247: 1246: 1243: 1242: 1240: 1239: 1234: 1229: 1224: 1219: 1217:Broadcast flag 1214: 1208: 1206: 1205:Hidden signals 1202: 1201: 1199: 1198: 1193: 1188: 1183: 1178: 1173: 1168: 1163: 1158: 1153: 1148: 1137: 1135: 1129: 1128: 1126: 1125: 1120: 1115: 1110: 1105: 1099: 1097: 1091: 1090: 1088: 1087: 1081: 1079: 1073: 1072: 1070: 1069: 1064: 1059: 1054: 1049: 1044: 1039: 1034: 1028: 1026: 1020: 1019: 1017: 1016: 1010: 1008: 1002: 1001: 999: 998: 993: 987: 985: 979: 978: 976: 975: 969: 967: 961: 960: 958: 957: 952: 947: 942: 941: 940: 930: 924: 922: 916: 915: 913: 912: 911: 910: 905: 895: 894: 893: 888: 878: 877: 876: 871: 861: 860: 859: 854: 849: 838: 836: 830: 829: 827: 826: 825: 824: 814: 813: 812: 807: 796: 794: 785: 779: 778: 775: 774: 772: 771: 766: 761: 756: 751: 746: 741: 736: 731: 726: 720: 718: 714: 713: 711: 710: 705: 700: 695: 690: 685: 680: 675: 670: 665: 660: 655: 649: 647: 646:Hidden signals 643: 642: 640: 639: 634: 632:Sound-in-Syncs 629: 624: 619: 614: 608: 606: 600: 599: 597: 596: 590: 588: 584: 583: 581: 580: 574: 572: 568: 567: 565: 564: 554: 552: 546: 545: 543: 542: 537: 482: 480: 474: 473: 471: 470: 465: 442: 440: 434: 433: 431: 430: 424: 422: 413: 403: 402: 399: 392: 391: 386: 384: 383: 376: 369: 361: 355: 354: 349: 344: 339: 334: 327: 324: 314: 311: 298:Most consumer 194:displays, the 135: 134: 49: 47: 40: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2256: 2245: 2242: 2241: 2239: 2225: 2219: 2216: 2211: 2205: 2202:. CRC Press. 2201: 2200: 2192: 2189: 2184: 2178: 2174: 2173: 2165: 2162: 2157: 2151: 2147: 2146: 2138: 2135: 2130: 2124: 2120: 2119: 2112: 2109: 2104: 2102:9781136069819 2098: 2094: 2093: 2085: 2082: 2075: 2065: 2062: 2060: 2057: 2055: 2052: 2050: 2047: 2046: 2044: 2040: 2034: 2031: 2029: 2026: 2024: 2021: 2019: 2016: 2014: 2011: 2010: 2008: 2004: 1998: 1995: 1993: 1990: 1988: 1985: 1983: 1980: 1978: 1975: 1973: 1970: 1968: 1965: 1963: 1960: 1958: 1955: 1953: 1950: 1949: 1947: 1945: 1941: 1935: 1932: 1930: 1927: 1925: 1922: 1920: 1917: 1915: 1912: 1911: 1909: 1906: 1902: 1896: 1893: 1891: 1888: 1886: 1883: 1881: 1878: 1876: 1873: 1871: 1868: 1866: 1863: 1861: 1858: 1856: 1853: 1851: 1848: 1846: 1843: 1841: 1838: 1836: 1833: 1831: 1828: 1826: 1823: 1821: 1818: 1816: 1813: 1811: 1808: 1806: 1803: 1801: 1798: 1796: 1792: 1789: 1787: 1784: 1782: 1779: 1778: 1776: 1772: 1766: 1763: 1761: 1758: 1756: 1753: 1752: 1750: 1746: 1740: 1737: 1735: 1732: 1730: 1727: 1725: 1722: 1721: 1719: 1715: 1709: 1708:White clipper 1706: 1704: 1701: 1699: 1696: 1694: 1691: 1689: 1686: 1684: 1681: 1679: 1676: 1674: 1671: 1669: 1666: 1664: 1661: 1659: 1658:Frame (video) 1656: 1654: 1651: 1649: 1646: 1644: 1641: 1639: 1636: 1634: 1631: 1629: 1626: 1624: 1621: 1619: 1616: 1614: 1610: 1607: 1606: 1604: 1600: 1594: 1591: 1589: 1586: 1584: 1581: 1579: 1576: 1574: 1571: 1569: 1566: 1564: 1561: 1559: 1556: 1555: 1553: 1551:Color systems 1549: 1542: 1538: 1534: 1531: 1528: 1524: 1520: 1516: 1512: 1508: 1504: 1500: 1496: 1492: 1489: 1486: 1482: 1479: 1477: 1474: 1472: 1469: 1466: 1462: 1459: 1457: 1454: 1452: 1449: 1447: 1444: 1443: 1441: 1439: 1435: 1431: 1428: 1421: 1416: 1414: 1409: 1407: 1402: 1401: 1398: 1381: 1377: 1375: 1372: 1370: 1367: 1365: 1362: 1360: 1357: 1355: 1352: 1350: 1347: 1345: 1342: 1340: 1337: 1335: 1332: 1330: 1327: 1324: 1320: 1317: 1315: 1312: 1310: 1307: 1306: 1303: 1296: 1292: 1268: 1266: 1262: 1256: 1254: 1250: 1244: 1238: 1235: 1233: 1230: 1228: 1225: 1223: 1220: 1218: 1215: 1213: 1210: 1209: 1207: 1203: 1197: 1194: 1192: 1189: 1187: 1184: 1182: 1179: 1177: 1174: 1172: 1169: 1167: 1164: 1162: 1159: 1157: 1154: 1152: 1149: 1146: 1142: 1139: 1138: 1136: 1134: 1130: 1124: 1121: 1119: 1116: 1114: 1111: 1109: 1106: 1104: 1101: 1100: 1098: 1096: 1092: 1086: 1083: 1082: 1080: 1078: 1074: 1068: 1065: 1063: 1060: 1058: 1055: 1053: 1050: 1048: 1045: 1043: 1040: 1038: 1035: 1033: 1030: 1029: 1027: 1025: 1021: 1015: 1012: 1011: 1009: 1007: 1006:MPEG-4 Visual 1003: 997: 994: 992: 989: 988: 986: 984: 980: 974: 971: 970: 968: 966: 962: 956: 953: 951: 948: 946: 943: 939: 936: 935: 934: 931: 929: 926: 925: 923: 921: 917: 909: 906: 904: 901: 900: 899: 896: 892: 889: 887: 884: 883: 882: 879: 875: 872: 870: 867: 866: 865: 862: 858: 855: 853: 850: 848: 845: 844: 843: 840: 839: 837: 835: 831: 823: 820: 819: 818: 815: 811: 808: 806: 803: 802: 801: 798: 797: 795: 793: 789: 786: 784: 780: 770: 767: 765: 762: 760: 757: 755: 752: 750: 747: 745: 742: 740: 737: 735: 732: 730: 727: 725: 722: 721: 719: 715: 709: 706: 704: 701: 699: 696: 694: 691: 689: 686: 684: 681: 679: 676: 674: 671: 669: 666: 664: 661: 659: 656: 654: 651: 650: 648: 644: 638: 635: 633: 630: 628: 625: 623: 620: 618: 615: 613: 610: 609: 607: 605: 601: 595: 592: 591: 589: 585: 579: 576: 575: 573: 569: 563: 559: 556: 555: 553: 551: 547: 541: 538: 535: 531: 527: 523: 519: 515: 511: 507: 503: 499: 495: 491: 487: 484: 483: 481: 479: 475: 469: 466: 463: 459: 455: 451: 447: 444: 443: 441: 439: 435: 429: 426: 425: 423: 421: 417: 414: 412: 408: 404: 397: 393: 389: 382: 377: 375: 370: 368: 363: 362: 359: 353: 350: 348: 345: 343: 340: 338: 335: 333: 330: 329: 325: 323: 321: 312: 310: 308: 305: 301: 296: 294: 290: 284: 282: 278: 273: 271: 267: 263: 258: 256: 252: 248: 244: 240: 236: 232: 231:VITC timecode 228: 223: 220: 216: 212: 207: 205: 201: 197: 193: 188: 186: 182: 178: 174: 170: 166: 162: 158: 155:display, the 154: 146: 141: 131: 128: 120: 109: 106: 102: 99: 95: 92: 88: 85: 81: 78: –  77: 73: 72:Find sources: 66: 62: 56: 55: 50:This article 48: 44: 39: 38: 33: 19: 2218: 2198: 2191: 2175:. Elsevier. 2171: 2164: 2148:. Elsevier. 2144: 2137: 2117: 2111: 2091: 2084: 2059:Hanover bars 1850:Pre-emphasis 1774:Transmission 1739:Zweikanalton 1702: 1643:Color killer 1568:Clear-Vision 920:MPEG-2 Video 682: 458:Clear-Vision 316: 297: 285: 277:frame buffer 274: 259: 224: 208: 189: 168: 164: 160: 156: 150: 123: 114: 104: 97: 90: 83: 71: 59:Please help 54:verification 51: 32:Contour line 2224:"InfoWorld" 2028:VIT signals 2023:Vectorscope 1962:Earth bulge 1944:Propagation 1907:& bands 1905:Frequencies 1688:Raster scan 1628:Chrominance 1618:Black level 1613:front porch 1378:Templates ( 1095:MPEG-H HEVC 834:Progressive 352:Raster scan 337:Datacasting 304:Macrovision 227:datacasting 200:raster scan 196:blank level 153:raster scan 2076:References 1957:Distortion 1890:Transposer 1825:Dummy load 1781:Amplifiers 1748:Modulation 1638:Colorburst 1609:Back porch 1222:Captioning 1024:MPEG-4 AVC 792:Interlaced 717:Historical 653:Captioning 612:BTSC (MTS) 587:1250 lines 571:1125 lines 400:Television 289:Atari 2600 190:In raster 87:newspapers 2064:Sparklies 2049:Dot crawl 2042:Artifacts 1982:Path loss 1977:Null fill 1952:Beam tilt 1693:Safe area 1359:Test card 1032:ATSC A/72 938:DVB 3D-TV 550:819 lines 478:625 lines 438:525 lines 420:405 lines 145:ld-decode 117:June 2023 2238:Category 2054:Ghosting 1815:Diplexer 1683:Overscan 1648:Color TV 1541:System F 1537:System E 1533:819-line 1527:System N 1523:System L 1519:System K 1515:System I 1511:System H 1507:System G 1503:System D 1499:System C 1495:System B 1491:625-line 1485:System M 1481:525-line 1476:455-line 1471:441-line 1465:System A 1461:405-line 1456:375-line 1451:343-line 1446:180-line 1271:Defunct. 1237:Teletext 1103:ATSC 3.0 759:567-line 754:455-line 749:441-line 744:375-line 739:343-line 734:180-line 724:Pre-1940 678:Teletext 558:System E 486:System B 446:System M 428:System A 326:See also 270:Teletext 239:teletext 2006:Testing 1588:PALplus 1438:Systems 1118:ISDB-S3 1067:MobaHo! 1014:MobaHo! 783:Digital 530:PALplus 101:scholar 2206:  2179:  2152:  2125:  2099:  1563:NTSC-J 1191:HE-AAC 1113:HD DMB 658:CGMS-A 594:HD-MAC 454:NTSC-J 411:Analog 255:V-chip 243:CGMS-A 169:VBLANK 103:  96:  89:  82:  74:  1729:NICAM 1717:Sound 1602:Video 1593:SECAM 1583:PAL-S 1578:PAL-M 1133:Audio 1085:ABS-S 1057:SBTVD 996:ABS-S 955:ABS-S 898:UHDTV 891:1080p 822:1080i 622:NICAM 604:Audio 534:SECAM 526:PAL-N 468:B-MAC 462:PAL-M 266:NABTS 151:In a 108:JSTOR 94:books 2204:ISBN 2177:ISBN 2150:ISBN 2123:ISBN 2097:ISBN 1992:Skew 1673:Luma 1611:and 1558:NTSC 1227:CPCM 1181:LPCM 1151:AC-4 1141:AC-3 1123:DTMB 1077:AVS2 1062:1seg 1047:DTMB 1037:CMMB 991:DTMB 983:AVS+ 973:CMMB 950:DTMB 945:ISDB 928:ATSC 886:720p 881:HDTV 874:576p 869:480p 864:EDTV 857:288p 852:240p 847:1seg 842:LDTV 817:HDTV 810:576i 805:480i 800:SDTV 769:OSKM 698:VITC 688:VEIL 617:EIAJ 578:MUSE 450:NTSC 300:VCRs 281:tear 253:for 80:news 1934:VHF 1929:UHF 1573:PAL 1323:DCI 1232:EPG 1212:AFD 1186:AAC 1176:PCM 1161:DRA 1156:DTS 1145:5.1 1108:DVB 1052:DVB 1042:DMB 965:AVS 933:DVB 708:XDS 703:WSS 693:VIT 683:VBI 673:PDC 668:GCR 663:EPG 627:SAP 540:MAC 522:PAL 247:XDS 211:CRT 177:DVI 173:VGA 167:or 161:VBI 63:by 2240:: 1539:, 1525:, 1521:, 1517:, 1513:, 1509:, 1505:, 1501:, 1497:, 1264:^ 1252:^ 908:8K 903:4K 560:, 532:, 528:, 524:, 516:, 512:, 508:, 504:, 500:, 496:, 492:, 488:, 460:, 456:, 452:, 322:. 241:, 237:, 233:, 175:, 2212:. 2185:. 2158:. 2131:. 2105:. 1793:/ 1543:) 1535:( 1529:) 1493:( 1487:) 1483:( 1467:) 1463:( 1419:e 1412:t 1405:v 1382:) 1325:) 1321:( 1147:) 1143:( 562:F 536:) 518:N 514:L 510:K 506:I 502:H 498:G 494:D 490:C 464:) 380:e 373:t 366:v 159:( 147:. 130:) 124:( 119:) 115:( 105:· 98:· 91:· 84:· 57:. 34:. 20:)

Index

Vertical interval
Contour line

verification
improve this article
adding citations to reliable sources
"Vertical blanking interval"
news
newspapers
books
scholar
JSTOR
Learn how and when to remove this message

ld-decode
raster scan
VGA
DVI
interlaced video
progressive video
cathode ray tube
blank level
raster scan
television broadcasts
CRT
horizontal blanking interval
thin panel displays
datacasting
VITC timecode
closed captioning

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.