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MacBinary | 1993-11-06 | 8.0 KB | [ TEXT/ttxt]
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You can browse this item here: Video attenuator
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MacBinary II, inited, Sat Nov 6 13:52:13 1993, modified Sat Nov 6 13:52:13 1993, creator SimpleText, type ASCII, 7297 bytes "Video attenuator" , at 0x1d01 600 bytes resource
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id metadata key value macFileType [ TEXT] macFileCreator [ ttxt]
hex view +--------+-------------------------+-------------------------+--------+--------+ |00000000| 00 10 56 69 64 65 6f 20 | 61 74 74 65 6e 75 61 74 |..Video |attenuat| |00000010| 6f 72 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |or......|........| |00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........| |00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........| |00000040| 00 54 45 58 54 74 74 78 | 74 01 00 00 00 00 00 00 |.TEXTttx|t.......| |00000050| 00 00 00 00 00 1c 81 00 | 00 02 58 a9 01 a2 dd a9 |........|..X.....| |00000060| 01 a2 dd 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........| |00000070| 00 00 00 00 00 00 00 00 | 00 00 81 81 4d 26 00 00 |........|....M&..| |00000080| 56 69 64 65 6f 54 6f 6f | 6c 62 6f 78 3a 20 56 69 |VideoToo|lbox: Vi| |00000090| 64 65 6f 20 61 74 74 65 | 6e 75 61 74 6f 72 0d 4e |deo atte|nuator.N| |000000a0| 6f 76 65 6d 62 65 72 20 | 36 2c 20 31 39 39 33 0d |ovember |6, 1993.| |000000b0| 0d 54 48 45 20 49 53 52 | 20 56 49 44 45 4f 20 41 |.THE ISR| VIDEO A| |000000c0| 54 54 45 4e 55 41 54 4f | 52 0d 0d 28 49 6e 73 74 |TTENUATO|R..(Inst| |000000d0| 61 6c 6c 61 74 69 6f 6e | 20 69 6e 73 74 72 75 63 |allation| instruc| |000000e0| 74 69 6f 6e 73 20 61 72 | 65 20 61 74 20 74 68 65 |tions ar|e at the| |000000f0| 20 65 6e 64 20 6f 66 20 | 74 68 69 73 20 66 69 6c | end of |this fil| |00000100| 65 2e 29 0d 0d 54 68 65 | 20 4d 61 63 20 49 49 20 |e.)..The| Mac II | |00000110| 69 73 20 67 72 65 61 74 | 20 66 6f 72 20 73 79 6e |is great| for syn| |00000120| 74 68 65 73 69 7a 69 6e | 67 20 61 6e 64 20 64 69 |thesizin|g and di| |00000130| 73 70 6c 61 79 69 6e 67 | 20 69 6d 61 67 65 73 20 |splaying| images | |00000140| 66 6f 72 20 76 69 73 69 | 6f 6e 20 65 78 70 65 72 |for visi|on exper| |00000150| 69 6d 65 6e 74 73 2e 20 | 48 6f 77 65 76 65 72 2c |iments. |However,| |00000160| 20 74 68 65 20 38 2d 62 | 69 74 20 72 65 73 6f 6c | the 8-b|it resol| |00000170| 75 74 69 6f 6e 20 6f 66 | 20 69 74 73 20 64 69 67 |ution of| its dig| |00000180| 69 74 61 6c 2d 74 6f 2d | 61 6e 61 6c 6f 67 20 63 |ital-to-|analog c| |00000190| 6f 6e 76 65 72 74 65 72 | 73 20 69 73 20 69 6e 61 |onverter|s is ina| |000001a0| 64 65 71 75 61 74 65 20 | 74 6f 20 72 65 6e 64 65 |dequate |to rende| |000001b0| 72 20 74 68 72 65 73 68 | 6f 6c 64 2d 63 6f 6e 74 |r thresh|old-cont| |000001c0| 72 61 73 74 20 73 74 69 | 6d 75 6c 69 2c 20 74 79 |rast sti|muli, ty| |000001d0| 70 69 63 61 6c 6c 79 20 | 79 69 65 6c 64 69 6e 67 |pically |yielding| |000001e0| 20 6f 6e 2d 73 63 72 65 | 65 6e 20 63 6f 6e 74 72 | on-scre|en contr| |000001f0| 61 73 74 73 20 74 68 61 | 74 20 61 72 65 20 6f 6e |asts tha|t are on| |00000200| 6c 79 20 61 63 63 75 72 | 61 74 65 20 74 6f 20 61 |ly accur|ate to a| |00000210| 62 6f 75 74 20 37 20 62 | 69 74 73 2c 20 62 65 63 |bout 7 b|its, bec| |00000220| 61 75 73 65 20 6f 66 20 | 74 68 65 20 6d 6f 6e 69 |ause of |the moni| |00000230| 74 6f 72 27 73 20 66 61 | 63 74 6f 72 2d 6f 66 2d |tor's fa|ctor-of-| |00000240| 74 77 6f 20 63 6f 6e 74 | 72 61 73 74 20 67 61 69 |two cont|rast gai| |00000250| 6e 2e 20 50 65 6c 6c 69 | 20 61 6e 64 20 5a 68 61 |n. Pelli| and Zha| |00000260| 6e 67 20 28 31 39 39 31 | 29 20 64 65 73 63 72 69 |ng (1991|) descri| |00000270| 62 65 20 61 20 73 69 6d | 70 6c 65 20 65 6c 65 63 |be a sim|ple elec| |00000280| 74 72 6f 6e 69 63 20 63 | 69 72 63 75 69 74 2c 20 |tronic c|ircuit, | |00000290| 61 20 76 69 64 65 6f 20 | 61 74 74 65 6e 75 61 74 |a video |attenuat| |000002a0| 6f 72 2c 20 74 68 61 74 | 20 70 72 6f 76 69 64 65 |or, that| provide| |000002b0| 73 20 61 63 63 75 72 61 | 74 65 20 63 6f 6e 74 72 |s accura|te contr| |000002c0| 61 73 74 20 63 6f 6e 74 | 72 6f 6c 2c 20 61 63 68 |ast cont|rol, ach| |000002d0| 69 65 76 69 6e 67 20 31 | 32 2d 62 69 74 20 6f 6e |ieving 1|2-bit on| |000002e0| 2d 73 63 72 65 65 6e 20 | 61 63 63 75 72 61 63 79 |-screen |accuracy| |000002f0| 2e 20 59 6f 75 20 63 61 | 6e 20 62 75 69 6c 64 20 |. 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It com| |00000420| 62 69 6e 65 73 20 74 68 | 65 20 74 68 72 65 65 20 |bines th|e three | |00000430| 63 6f 6c 6f 72 20 52 47 | 42 20 73 69 67 6e 61 6c |color RG|B signal| |00000440| 73 20 66 72 6f 6d 20 61 | 20 63 6f 6c 6f 72 20 76 |s from a| color v| |00000450| 69 64 65 6f 20 63 61 72 | 64 20 74 6f 20 70 72 6f |ideo car|d to pro| |00000460| 64 75 63 65 20 61 20 73 | 69 6e 67 6c 65 20 6d 6f |duce a s|ingle mo| |00000470| 6e 6f 63 68 72 6f 6d 65 | 20 73 69 67 6e 61 6c 20 |nochrome| signal | |00000480| 6f 66 20 68 69 67 68 65 | 72 20 67 72 61 79 73 63 |of highe|r graysc| |00000490| 61 6c 65 20 72 65 73 6f | 6c 75 74 69 6f 6e 2e 20 |ale reso|lution. | |000004a0| 4f 6e 6c 79 20 70 72 6f | 67 72 61 6d 73 20 75 73 |Only pro|grams us| |000004b0| 69 6e 67 20 73 70 65 63 | 69 61 6c 20 73 6f 66 74 |ing spec|ial soft| |000004c0| 77 61 72 65 20 28 70 72 | 6f 76 69 64 65 64 29 20 |ware (pr|ovided) | |000004d0| 77 69 6c 6c 20 61 63 68 | 69 65 76 65 20 74 68 69 |will ach|ieve thi| |000004e0| 73 20 62 65 6e 65 66 69 | 74 2e 20 50 68 79 73 69 |s benefi|t. Physi| |000004f0| 63 61 6c 6c 79 2c 20 69 | 74 20 69 73 20 61 20 73 |cally, i|t is a s| |00000500| 6d 61 6c 6c 20 73 61 74 | 69 6e 2d 66 69 6e 69 73 |mall sat|in-finis| |00000510| 68 20 6d 61 63 68 69 6e | 65 64 2d 61 6c 75 6d 69 |h machin|ed-alumi| |00000520| 6e 75 6d 20 62 6f 78 2c | 20 61 62 6f 75 74 20 74 |num box,| about t| |00000530| 68 65 20 73 69 7a 65 20 | 6f 66 20 61 20 6d 61 74 |he size |of a mat| |00000540| 63 68 62 6f 78 20 28 32 | 22 78 31 2e 32 22 78 30 |chbox (2|"x1.2"x0| |00000550| 2e 37 22 29 2c 20 77 69 | 74 68 20 61 20 31 35 2d |.7"), wi|th a 15-| |00000560| 70 69 6e 20 41 70 70 6c | 65 20 76 69 64 65 6f 20 |pin Appl|e video | |00000570| 63 6f 6e 6e 65 63 74 6f | 72 20 61 74 20 65 61 63 |connecto|r at eac| |00000580| 68 20 65 6e 64 2e 20 49 | 6e 73 69 64 65 20 61 72 |h end. I|nside ar| |00000590| 65 20 70 72 65 63 69 73 | 69 6f 6e 20 72 65 73 69 |e precis|ion resi| |000005a0| 73 74 6f 72 73 20 6f 6e | 20 61 20 74 77 6f 2d 73 |stors on| a two-s| |000005b0| 69 64 65 64 20 70 72 69 | 6e 74 65 64 20 63 69 72 |ided pri|nted cir| |000005c0| 63 75 69 74 20 62 6f 61 | 72 64 20 77 69 74 68 20 |cuit boa|rd with | |000005d0| 63 6f 6e 74 72 6f 6c 6c | 65 64 2d 69 6d 70 65 64 |controll|ed-imped| |000005e0| 61 6e 63 65 20 6d 69 63 | 72 6f 73 74 72 69 70 20 |ance mic|rostrip | |000005f0| 74 72 61 63 65 73 2e 20 | 54 68 69 73 20 70 61 73 |traces. |This pas| |00000600| 73 69 76 65 20 72 65 73 | 69 73 74 6f 72 20 6e 65 |sive res|istor ne| |00000610| 74 77 6f 72 6b 20 63 6f | 6d 62 69 6e 65 73 20 74 |twork co|mbines t| |00000620| 68 65 20 74 68 72 65 65 | 20 38 2d 62 69 74 20 52 |he three| 8-bit R| |00000630| 47 42 20 73 69 67 6e 61 | 6c 73 20 66 72 6f 6d 20 |GB signa|ls from | |00000640| 79 6f 75 72 20 76 69 64 | 65 6f 20 63 61 72 64 20 |your vid|eo card | |00000650| 74 6f 20 70 72 6f 64 75 | 63 65 20 61 20 73 69 6e |to produ|ce a sin| |00000660| 67 6c 65 20 6d 75 63 68 | 2d 68 69 67 68 65 72 2d |gle much|-higher-| |00000670| 61 63 63 75 72 61 63 79 | 20 73 69 67 6e 61 6c 20 |accuracy| signal | |00000680| 74 6f 20 64 72 69 76 65 | 20 79 6f 75 72 20 41 70 |to drive| your Ap| |00000690| 70 6c 65 20 48 69 67 68 | 2d 52 65 73 6f 6c 75 74 |ple High|-Resolut| |000006a0| 69 6f 6e 20 4d 6f 6e 6f | 63 68 72 6f 6d 65 20 44 |ion Mono|chrome D| |000006b0| 69 73 70 6c 61 79 2e 0d | 0d 49 4d 50 4f 52 54 41 |isplay..|.IMPORTA| |000006c0| 4e 54 20 4e 4f 54 45 3a | 20 54 68 65 20 28 6e 6f |NT NOTE:| The (no| |000006d0| 77 20 6f 62 73 6f 6c 65 | 74 65 29 20 41 70 70 6c |w obsole|te) Appl| |000006e0| 65 20 31 32 22 20 4d 6f | 6e 6f 63 68 72 6f 6d 65 |e 12" Mo|nochrome| |000006f0| 20 44 69 73 70 6c 61 79 | 20 68 61 73 20 61 20 62 | Display| has a b| |00000700| 75 69 6c 74 2d 69 6e 20 | 76 69 64 65 6f 20 63 61 |uilt-in |video ca| |00000710| 62 6c 65 2c 20 6d 61 6b | 69 6e 67 20 69 74 20 69 |ble, mak|ing it i| |00000720| 6d 70 6f 73 73 69 62 6c | 65 20 74 6f 20 70 6c 61 |mpossibl|e to pla| |00000730| 63 65 20 74 68 65 20 56 | 69 64 65 6f 20 41 74 74 |ce the V|ideo Att| |00000740| 65 6e 75 61 74 6f 72 20 | 62 65 74 77 65 65 6e 20 |enuator |between | |00000750| 74 68 65 20 63 61 62 6c | 65 20 61 6e 64 20 6d 6f |the cabl|e and mo| |00000760| 6e 69 74 6f 72 2e 20 49 | 74 20 69 73 20 68 6f 77 |nitor. I|t is how| |00000770| 65 76 65 72 2c 20 70 6f | 73 73 69 62 6c 65 20 74 |ever, po|ssible t| |00000780| 6f 20 75 73 65 20 74 77 | 6f 20 76 69 64 65 6f 20 |o use tw|o video | |00000790| 65 78 74 65 6e 64 65 72 | 20 63 61 62 6c 65 73 20 |extender| cables | |000007a0| 74 6f 20 61 63 68 69 65 | 76 65 20 74 68 65 20 63 |to achie|ve the c| |000007b0| 6f 72 72 65 63 74 20 65 | 6c 65 63 74 69 63 61 6c |orrect e|lectical| |000007c0| 20 63 6f 6e 6e 65 63 74 | 69 6f 6e 2e 0d 0d 44 2e | connect|ion...D.| |000007d0| 20 47 2e 20 50 65 6c 6c | 69 20 61 6e 64 20 4c 2e | G. Pell|i and L.| |000007e0| 20 5a 68 61 6e 67 20 28 | 31 39 39 31 29 20 41 63 | Zhang (|1991) Ac| |000007f0| 63 75 72 61 74 65 20 63 | 6f 6e 74 72 6f 6c 20 6f |curate c|ontrol o| |00000800| 66 20 63 6f 6e 74 72 61 | 73 74 20 6f 6e 20 6d 69 |f contra|st on mi| |00000810| 63 72 6f 63 6f 6d 70 75 | 74 65 72 20 64 69 73 70 |crocompu|ter disp| |00000820| 6c 61 79 73 2e 20 56 69 | 73 69 6f 6e 20 52 65 73 |lays. Vi|sion Res| |00000830| 65 61 72 63 68 2c 20 33 | 31 3a 31 33 33 37 2d 31 |earch, 3|1:1337-1| |00000840| 33 36 30 2e 0d 0d 50 41 | 43 4b 49 4e 47 20 4c 49 |360...PA|CKING LI| |00000850| 53 54 0d 0d 2d 20 49 53 | 52 20 56 69 64 65 6f 20 |ST..- IS|R Video | |00000860| 41 74 74 65 6e 75 61 74 | 6f 72 2e 20 49 53 52 20 |Attenuat|or. ISR | |00000870| 73 74 61 6e 64 73 20 66 | 6f 72 20 22 49 6e 73 74 |stands f|or "Inst| |00000880| 69 74 75 74 65 20 66 6f | 72 20 53 65 6e 73 6f 72 |itute fo|r Sensor| |00000890| 79 20 52 65 73 65 61 72 | 63 68 22 2e 0d 2d 20 52 |y Resear|ch"..- R| |000008a0| 65 70 72 69 6e 74 20 6f | 66 20 50 65 6c 6c 69 20 |eprint o|f Pelli | |000008b0| 61 6e 64 20 5a 68 61 6e | 67 20 28 31 39 39 31 29 |and Zhan|g (1991)| |000008c0| 2c 20 77 68 69 63 68 20 | 69 6e 63 6c 75 64 65 73 |, which |includes| |000008d0| 20 69 6e 73 74 72 75 63 | 74 69 6f 6e 73 20 66 6f | instruc|tions fo| |000008e0| 72 20 75 73 65 20 61 6e | 64 20 61 20 73 63 68 65 |r use an|d a sche| |000008f0| 6d 61 74 69 63 2e 0d 2d | 20 33 2e 35 22 20 4d 61 |matic..-| 3.5" Ma| |00000900| 63 69 6e 74 6f 73 68 20 | 64 69 73 6b 20 77 69 74 |cintosh |disk wit| |00000910| 68 20 66 72 65 65 20 22 | 56 69 64 65 6f 20 54 6f |h free "|Video To| |00000920| 6f 6c 62 6f 78 22 20 73 | 6f 66 74 77 61 72 65 20 |olbox" s|oftware | |00000930| 77 72 69 74 74 65 6e 20 | 69 6e 20 54 48 49 4e 4b |written |in THINK| |00000940| 20 43 20 66 6f 72 20 67 | 65 6e 65 72 61 74 69 6e | C for g|eneratin| |00000950| 67 20 76 69 73 75 61 6c | 20 73 74 69 6d 75 6c 69 |g visual| stimuli| |00000960| 20 61 6e 64 20 6d 61 6b | 69 6e 67 20 6f 70 74 69 | and mak|ing opti| |00000970| 6d 61 6c 20 75 73 65 20 | 6f 66 20 74 68 65 20 56 |mal use |of the V| |00000980| 69 64 65 6f 20 41 74 74 | 65 6e 75 61 74 6f 72 20 |ideo Att|enuator | |00000990| 6f 6e 20 61 20 4d 61 63 | 20 49 49 2e 20 54 68 65 |on a Mac| II. The| |000009a0| 20 73 6f 66 74 77 61 72 | 65 20 69 73 20 61 6c 73 | softwar|e is als| |000009b0| 6f 20 61 76 61 69 6c 61 | 62 6c 65 20 73 65 70 61 |o availa|ble sepa| |000009c0| 72 61 74 65 6c 79 2c 20 | 73 74 69 6c 6c 20 66 72 |rately, |still fr| |000009d0| 65 65 3b 20 6a 75 73 74 | 20 73 65 6e 64 20 6d 65 |ee; just| send me| |000009e0| 20 65 6d 61 69 6c 20 6f | 72 20 61 20 72 65 70 72 | email o|r a repr| |000009f0| 69 6e 74 20 72 65 71 75 | 65 73 74 2c 20 62 75 74 |int requ|est, but| |00000a00| 20 62 65 20 73 75 72 65 | 20 74 6f 20 69 6e 63 6c | be sure| to incl| |00000a10| 75 64 65 20 79 6f 75 72 | 20 6d 61 69 6c 69 6e 67 |ude your| mailing| |00000a20| 20 61 64 64 72 65 73 73 | 20 61 73 20 74 68 65 20 | address| as the | |00000a30| 56 69 64 65 6f 54 6f 6f | 6c 62 6f 78 20 69 73 20 |VideoToo|lbox is | |00000a40| 74 6f 6f 20 62 69 67 20 | 66 6f 72 20 65 6d 61 69 |too big |for emai| |00000a50| 6c 2e 20 28 49 20 75 73 | 65 20 74 68 69 73 20 73 |l. 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As |such it | |00000d10| 69 73 20 6c 69 63 65 6e | 73 65 64 2c 20 6e 6f 74 |is licen|sed, not| |00000d20| 20 73 6f 6c 64 2e 20 54 | 68 65 20 6c 69 63 65 6e | sold. T|he licen| |00000d30| 73 65 20 68 61 73 20 6e | 6f 20 74 69 6d 65 20 6c |se has n|o time l| |00000d40| 69 6d 69 74 20 61 6e 64 | 20 69 73 20 74 72 61 6e |imit and| is tran| |00000d50| 73 66 65 72 61 62 6c 65 | 2e 20 54 68 65 20 61 63 |sferable|. 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