Knowledge

Longitudinal Video Recording

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56:, the LVR ran a tape quickly past a stationary recording head which would step across the tape width and lay down a series of parallel tracks along the tape's length. The head used fixed scanning but moved down the tape to the next track once the end of the quickly moving tape (240 ips with 300 tracks to a ½” tape) had been reached. 76:
200 tape recorder and standard quarter-inch (0.6 cm) audio tape moving at 360 inches (9.1 m) per second. A year later, an improved version, using one-inch (2.6 cm) magnetic tape, was shown to the press, who reportedly expressed amazement at the quality of the images, although they had a
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One of the advantages touted for the system was the low production cost of both the tapes and the hardware but consumers never had the chance to try it. Problems with the poor picture quality caused by a very brief interruption to the picture as the head moved down led to delays in production. In
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From then it became clear that 'rotating-head' helical scan recorders were the way forward with superior sound and picture quality. However the expense of rotating-head machines ($ 2000 for a machine in 1956) meant that work continued on developing a consumer stationary-head machine for some time
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recordings on film. Bing Crosby Enterprises hoped to have a commercial version available in 1954, but none came forth. BCE demonstrated a color model in February 1955, using a longitudinal recording on half-inch (1.3 cm) tape, essentially similar to what
68:'s production company, Bing Crosby Enterprises (BCE), who had pioneered the use of magnetic tape recording for his radio show in the 1940s. BCE gave the world's first demonstration of a videotape recording in Los Angeles on November 11, 1951. Developed by 114:
system, though further research continued with the BBC Research department demonstrating an experimental digital LVR machine in June 1974 which recorded colour television on 42 tracks on a one-inch tape moving at 120 ips.
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in June 1979. Although using the same principle, the tapes developed by BASF and Toshiba were incompatible, with BASF moving a length of tape back and forth over the head, whilst Toshiba used a continuous loop.
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began developing their own system and the quality issues let VHS and Betamax become the dominant formats and the LVR never went to market.
77:"persistent grainy quality that looked like a worn motion picture". Overall, the picture quality was still considered inferior to the best 1240: 409: 237: 1021: 1010: 967: 402: 72:
and Wayne R. Johnson since 1950, the device gave what were described as "blurred and indistinct" images, using a modified
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LVR differed from other VCR technologies in that instead of running a tape slowly past a pair of rapidly moving
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Work had begun on longitudinal video recording as early as 1950 by the electronics division of entertainer
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had announced a commercial LVR as early as 1974, however it wasn't demonstrated until Autumn 1978 at the
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VCR system, released in 1972. However, the first system to be successful with consumers was Sony's
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Eric D. Daniel, C. Denis Mee, and Mark H. Clark (eds.), p. 141.
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The first home VCRs to become widely available were the
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and laying the tracks obliquely across the tape in a
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in 1975. This was quickly followed by the competing
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Archived from 210: 208: 206: 204: 202: 334:Daniel, Mee, Clark (1999), pp. 149 261:Daniel, Mee, Clark (1999), pp. 138 14: 305:"New Deal on TV Seen at Parley," 1005:HVD (Holographic Versatile Disc) 137:(Video Home System) format from 1: 995: 899: 20:Longitudinal Video Recording 1257: 1241:Discontinued media formats 1214:Electronic Video Recording 348:. McFarland. p. 156. 106:. The BBC abandoned their 86:had demonstrated in 1953. 1030:UHD-BD (Ultra HD Blu-ray) 927:PVD (Personal Video Disc) 163:Consumer Electronics Show 463:Ampex 2 inch helical VTR 962:Professional Disc (PFD) 469:Sony 2 inch helical VTR 296:, Dec. 31, 1952, p. 10. 274:, Nov. 12, 1951, p. 21. 1208:Electronicam kinescope 1195:Video recorded to film 1022:Ultra-High Definition 426:Video storage formats 309:, May 1, 1953, p. 30. 223:: 19. 3 January 1980. 238:"From Baird to MPEG" 380:. Wiley-Blackwell. 125:system in 1971 and 344:Abramson, Albert. 307:The New York Times 294:The New York Times 272:The New York Times 94:with efforts from 1223: 1222: 1190: 1189: 1039: 1038: 986:BD (Blu-ray Disc) 956:MUSE Hi-Vision LD 792: 791: 387:978-0-7803-4709-0 355:978-0-7864-1220-4 155:Berlin Radio Show 1248: 1048: 1000: 997: 904: 901: 803: 439: 419: 412: 405: 396: 391: 379: 360: 359: 341: 335: 332: 323: 322:Company in 1956. 316: 310: 303: 297: 290: 284: 281: 275: 268: 262: 259: 253: 252: 250: 249: 234: 225: 224: 212: 1256: 1255: 1251: 1250: 1249: 1247: 1246: 1245: 1226: 1225: 1224: 1219: 1186: 1155: 1087: 1035: 1016: 998: 949:High Definition 944: 902: 866: 788: 727:High Definition 721: 680:Digital Betacam 642: 428: 423: 388: 371: 368: 363: 356: 343: 342: 338: 333: 326: 317: 313: 304: 300: 291: 287: 282: 278: 269: 265: 260: 256: 247: 245: 236: 235: 228: 214: 213: 200: 196: 184: 141:, and later by 62: 50:recording heads 46: 17: 12: 11: 5: 1254: 1252: 1244: 1243: 1238: 1228: 1227: 1221: 1220: 1218: 1217: 1211: 1205: 1198: 1196: 1192: 1191: 1188: 1187: 1185: 1184: 1178: 1172: 1165: 1163: 1157: 1156: 1154: 1153: 1147: 1141: 1135: 1129: 1123: 1117: 1111: 1105: 1095: 1093: 1089: 1088: 1086: 1085: 1079: 1073: 1067: 1061: 1054: 1052: 1051:Media agnostic 1045: 1041: 1040: 1037: 1036: 1034: 1033: 1026: 1024: 1018: 1017: 1015: 1014: 1008: 1002: 989: 983: 977: 971: 965: 959: 952: 950: 946: 945: 943: 942: 936: 930: 924: 918: 912: 906: 893: 887: 881: 874: 872: 868: 867: 865: 864: 858: 852: 846: 840: 834: 828: 822: 816: 809: 807: 800: 794: 793: 790: 789: 787: 786: 780: 774: 768: 762: 756: 750: 744: 738: 731: 729: 723: 722: 720: 719: 713: 707: 701: 695: 692:Digital-S (D9) 689: 683: 677: 671: 665: 659: 652: 650: 644: 643: 641: 640: 634: 628: 622: 616: 610: 604: 598: 592: 586: 580: 574: 568: 562: 556: 550: 544: 538: 532: 526: 520: 514: 508: 502: 496: 490: 484: 478: 472: 466: 460: 454: 447: 445: 436: 430: 429: 424: 422: 421: 414: 407: 399: 393: 392: 386: 367: 364: 362: 361: 354: 336: 324: 311: 298: 285: 276: 263: 254: 226: 197: 195: 192: 191: 190: 183: 180: 70:John T. Mullin 61: 58: 45: 42: 15: 13: 10: 9: 6: 4: 3: 2: 1253: 1242: 1239: 1237: 1234: 1233: 1231: 1215: 1212: 1209: 1206: 1203: 1200: 1199: 1197: 1193: 1182: 1179: 1176: 1173: 1170: 1167: 1166: 1164: 1162: 1158: 1151: 1148: 1145: 1142: 1139: 1136: 1133: 1130: 1127: 1124: 1121: 1118: 1115: 1112: 1109: 1106: 1103: 1100: 1097: 1096: 1094: 1090: 1083: 1080: 1077: 1074: 1071: 1068: 1065: 1062: 1059: 1056: 1055: 1053: 1049: 1046: 1042: 1031: 1028: 1027: 1025: 1023: 1019: 1012: 1009: 1006: 1003: 993: 990: 987: 984: 981: 978: 975: 972: 969: 966: 963: 960: 957: 954: 953: 951: 947: 940: 937: 934: 931: 928: 925: 922: 919: 916: 913: 910: 907: 897: 894: 891: 888: 885: 882: 879: 876: 875: 873: 869: 862: 859: 856: 853: 850: 847: 844: 841: 838: 835: 832: 829: 826: 823: 820: 817: 814: 811: 810: 808: 804: 801: 799: 795: 784: 781: 778: 775: 772: 769: 766: 763: 760: 757: 754: 751: 748: 745: 742: 739: 736: 733: 732: 730: 728: 724: 717: 714: 711: 708: 705: 702: 699: 696: 693: 690: 687: 684: 681: 678: 675: 672: 669: 666: 663: 660: 657: 654: 653: 651: 649: 645: 638: 635: 632: 629: 626: 623: 620: 617: 614: 611: 608: 605: 602: 599: 596: 593: 590: 587: 584: 581: 578: 575: 572: 569: 566: 563: 560: 557: 554: 551: 548: 545: 542: 539: 536: 533: 530: 527: 524: 521: 518: 515: 512: 509: 506: 503: 500: 497: 494: 491: 488: 485: 482: 479: 476: 473: 470: 467: 464: 461: 458: 455: 452: 449: 448: 446: 444: 440: 437: 435: 431: 427: 420: 415: 413: 408: 406: 401: 400: 397: 389: 383: 378: 377: 370: 369: 365: 357: 351: 347: 340: 337: 331: 329: 325: 321: 315: 312: 308: 302: 299: 295: 289: 286: 280: 277: 273: 267: 264: 258: 255: 244:on 2011-01-22 243: 239: 233: 231: 227: 222: 218: 217:New Scientist 211: 209: 207: 205: 203: 199: 193: 189: 186: 185: 181: 179: 177: 171: 168: 164: 160: 156: 152: 148: 144: 140: 136: 132: 128: 124: 121: 116: 113: 109: 105: 101: 97: 91: 89: 85: 80: 75: 71: 67: 59: 57: 55: 51: 43: 41: 39: 36: 32: 29: 25: 21: 505:Cartrivision 375: 345: 339: 314: 306: 301: 293: 288: 279: 271: 266: 257: 246:. Retrieved 242:the original 220: 216: 172: 117: 92: 63: 54:helical scan 47: 23: 19: 18: 1161:Solid state 999: 2006 903: 1996 813:Phonovision 771:D6 HDTV VTR 511:Philips VCR 66:Bing Crosby 60:Development 33:system and 1230:Categories 698:Betacam SX 607:Betacam SP 571:Video 2000 451:Quadruplex 248:2010-09-05 194:References 143:Video 2000 112:quadruplex 1236:Videotape 1202:Kinescope 1132:AVC-Intra 1099:CamCutter 1082:DVCPRO HD 849:Laserfilm 831:LaserDisc 798:Videodisc 735:Sony HDVS 434:Videotape 176:Blaupunkt 79:kinescope 35:videotape 1092:Tapeless 1076:DVCPRO50 855:CD Video 819:Ampex-HS 783:HDCAM SR 747:BCH 1000 710:MPEG IMX 704:Digital8 182:See also 102:and the 38:standard 28:consumer 1210:(1950s) 1181:MicroP2 1102:Editcam 1044:Virtual 896:MiniDVD 884:MovieCD 871:Digital 716:MicroMV 648:Digital 625:S-VHS-C 595:Betacam 529:Betamax 499:U-matic 481:CV-2000 366:Sources 167:Chicago 159:Toshiba 147:Philips 131:Betamax 127:Philips 123:U-Matic 1216:(1967) 1204:(1947) 1183:(2012) 1177:(2007) 1171:(2004) 1152:(2012) 1146:(2009) 1144:iFrame 1140:(2007) 1134:(2006) 1128:(2006) 1122:(2005) 1116:(2004) 1114:GBA-TV 1110:(2003) 1104:(1995) 1084:(2000) 1078:(1997) 1072:(1996) 1066:(1995) 1064:DVCPRO 1060:(1995) 1032:(2016) 1013:(2008) 1007:(2007) 992:MiniBD 988:(2006) 982:(2006) 980:HD DVD 976:(2006) 970:(2004) 964:(2003) 958:(1994) 941:(2005) 935:(2004) 929:(2003) 923:(2003) 917:(1998) 911:(1998) 892:(1996) 886:(1996) 880:(1993) 863:(1990) 857:(1987) 851:(1984) 845:(1983) 839:(1981) 833:(1978) 827:(1975) 821:(1967) 815:(1927) 806:Analog 785:(2003) 779:(2003) 773:(2000) 767:(1998) 761:(1997) 755:(1994) 749:(1992) 743:(1984) 737:(1984) 718:(2001) 712:(2000) 706:(1999) 700:(1996) 694:(1995) 688:(1994) 682:(1993) 676:(1992) 670:(1991) 664:(1988) 658:(1986) 639:(1998) 633:(1989) 627:(1987) 621:(1987) 615:(1986) 609:(1986) 603:(1985) 601:Video8 597:(1982) 591:(1982) 585:(1982) 579:(1980) 573:(1980) 567:(1979) 561:(1977) 555:(1976) 549:(1976) 547:Type C 543:(1976) 541:Type B 537:(1975) 531:(1975) 525:(1974) 519:(1974) 517:V-Cord 513:(1972) 507:(1972) 501:(1971) 495:(1969) 493:EIAJ-1 489:(1967) 483:(1965) 477:(1965) 475:Type A 471:(1961) 465:(1961) 459:(1958) 453:(1956) 443:Analog 384:  352:  26:was a 1126:AVCHD 1108:XDCAM 1070:DVCAM 765:D-VHS 759:HDCAM 753:W-VHS 741:UniHi 619:S-VHS 583:VHS-C 145:from 74:Ampex 1150:XAVC 915:SVCD 637:Ruvi 487:Akai 457:VERA 382:ISBN 350:ISBN 151:BASF 120:Sony 108:VERA 96:Akai 1175:SxS 1138:TOD 1120:MOD 974:VMD 939:FVD 933:UMD 921:EVD 909:CVD 890:DVD 878:VCD 861:VSD 843:VHD 837:CED 825:TeD 777:HDV 674:DCT 631:Hi8 613:MII 577:CVC 565:SVR 553:VHS 535:IVC 165:in 149:. 139:JVC 135:VHS 104:BBC 100:GEC 88:CBS 84:RCA 31:VCR 24:LVR 22:or 1232:: 1169:P2 1058:DV 996:c. 900:c. 686:D5 668:D3 662:D2 656:D1 559:VK 523:VX 327:^ 320:3M 229:^ 221:85 219:. 201:^ 157:. 98:, 40:. 1001:) 994:( 905:) 898:( 589:M 418:e 411:t 404:v 390:. 358:. 251:.

Index

consumer
VCR
videotape
standard
recording heads
helical scan
Bing Crosby
John T. Mullin
Ampex
kinescope
RCA
CBS
Akai
GEC
BBC
VERA
quadruplex
Sony
U-Matic
Philips
Betamax
VHS
JVC
Video 2000
Philips
BASF
Berlin Radio Show
Toshiba
Consumer Electronics Show
Chicago

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