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Text of the page (random words):
e concept what is videodisc videodisc is an audio visual delivery medium which offers a wide range of totally new communications opportunities in the field of teaching training learning marketing and general information distribution because it is a replay medium it has a dense storage capacity for exceptionally high quality pictures and sound because it is a disc encoded in a spiral form very fast random access can be gained to any part of the material because special codes can be pressed into the disc a high degree of control can be exercised by the programme designer which affect the way the disc is used together these offer a new opportunity interactivity what is interactivity in an interactive programme the otherwise passive viewer becomes an active participant a user he controls the message he progresses at his own pace absorbing and learning unhindered by others the programme maker can design the programme material in such a way that choices made by the user direct him along the most appropriate path for the first time the user feels that he is in charge and for the first time the programme designer knows that his message is being tailored to that user s needs why interactivity there is already substantial evidence that interactive video is the most effective tool for delivering a complex message simply and clearly because the interactive programme cannot progress without the user s active participation fie is more inclined to pay particular attention to the information he is being asked to absorb systems can be designed to examine the user on his reactions and understanding and he can be accurately directed to the most appropriate next step why interactive videodisc adding computer control is simple and even small micro computers can add a new dimension to interactive programming the only way to grasp the potential of interactive videodisc is to experience it only a demonstration can do justice to this powerful tool the videodisc has an unparalleled capacity for storing information sixty minutes of video material can be packed into one side of a to inch vhd disc together with two audio tracks two complementary commentaries different comprehension levels question and answer second languages all are immediately possible on one disc a capacity of 45 000 still pictures each with its own unique address turns videodisc into a database of immense density and these capabilities can be coupled on one disc with one videodisc player performing all the required access and replay functions peter morley obe controller of programmes alastair bowes general manager author thorn emi videodisc posted on november 1983 january 2019 categories the concept tags alastair bowes interactivity peter morley videodisc the service what before how content before technique in commerce in industry in institutions whatever the applications interactive video is only as good as its software that is why thorn emi videodisc is making available a comprehensive service you can draw on ranging from the development of the initial idea right through to the delivery of the system and beyond consultancy consideration of a videodisc system may involve major investment decisions by a company careful planning of both software and hardware requirements is needed thorn emi videodisc can provide it full consultancy and advisory service to translate these needs into decisions and then actions programme design thorn emi has the videodisc design experience this experience is available to your team to assist in the development and design of your interactive programmes help can be given with the new conceptual approach flow charting and with technical requirements production our software advice centre is available to work with your own in house video or film unit or with your chosen production and facility companies keeping a close liaison with both creative and technical teams post production we will monitor progress during this important phase and ensure that the programme design programme material and videodisc technical capabilities are correctly integrated premastering we will supervise this final post production stage where the video and audio information is committed to 1 c format video tape our associate company thorn emi video facilities is able to quote favourable rates for this stage of the work they are one of london s leading video facilities companies and have gained unique experience in videodisc pre mastering making the disc our own factory at swindon is dedicated to the mastering and pressing of vhd videodiscs for the commercial industrial and institutional markets installation the vhd videodisc players will be delivered and installed by trained thorn emi personnel demonstrations will be given to familiarise staff with the system the service continues apart from maintenance and warranty arrangements we offer to monitor with the user the effectiveness of this new form of communication and will advise on future applications we want to ensure that technology is not used for its own sake author thorn emi videodisc posted on november 1983 march 2018 categories the service tags installation manufacture pos production premastering production service software advice centre thorn emi video facilities videodisc disc manufacturing jim johnston vhd manager swindon swindon the thorn emi videodisc factory at swindon was purpose built to master and press vhd videodiscs this is where the new technology takes over videodisc manufacture involves a blend of old and new technologies and from the old demands higher standards than ever before the factory itself is a building within a building the mastering and manufacturing processes all take place in an environmentally controlled series of clean rooms the standard demanded throughout is not less than class 10 000 and in the most sensitive areas is better than class 100 fewer than 100 microscopic particles in every cubic foot of air premastering programme material from virtually any source can be considered for videodisc the final stage of post production is to edit all the material onto a broadcast standard 1 c format videotape in the order in which it is required on the final disc all audio must also be recorded in the correct places on the correct tracks during this process the exact location of each of the special vhd control signals is determined these signals identify chapters time code page addresses autostops and automatic audio switching the finished videotape is called the premaster tape videodisc mastering in the vhd videodisc plant the glass master is prepared this is an optically perfect glass disc which has been cleaned coated with a photo resist solution and baked to harden the coating after careful checking it is placed in the laser cutter the premaster tape is played back to the laser cutter which encodes the signals into a form which drives the powerful laser a complex series of optics condense and shape the laser beam and focus it onto the glass master to create the latent image of the microscopic pits in the surface the glass master is then developed checked for flaws and after thorough cleaning is ready for the next stage in the process author thorn emi videodisc posted on november 1983 march 2018 categories disc manufacturing tags class 100 glass master jim johnston mastering premaster tape premastering swindon thorn emi video facilities thorn emi video facilities is based in london s west end it offers full broadcast standard telecine videotape and video editing facilities author thorn emi videodisc posted on november 1983 march 2018 categories disc manufacturing tags london telecine thorn emi video facilities video editing videotape swindon u k stamper production the cleaned glass master is sprayed with silver nitrate and a reducing solution to create a thin coat of silver it is then electro plated with high grade nickel in a two stage process this gives the metal form rigidity and it can then be removed from the glass master this is the metal master a negative image after careful cleaning the metal master is used to grow positive masters or mothers this is another electro forming process a number of mothers can be made from one metal master again after careful cleaning the positive mother is used to create the stampers the final negative image from which the videodiscs are pressed disc pressing a pair of stampers side 1 and side 2 are placed in the press the electro conductive plastic compound from which the disc is made is extruded in a semi liquid state into a carefully regulated form known as a patty this is transferred to the space between the stampers and as the press closes steam is injected when the patty has spread out cold water replaces the steam the compound solidifies and a videodisc emerges the disc is edge trimmed proceeds through quality assurance and is then placed into its protective plastic disc case the vhd videodisc is housed in a plastic case the vhd player removes the disc when the case is inserted and replaces it after use author thorn emi videodisc posted on november 1983 march 2018 categories disc manufacturing tags cold water edge trimming glass master metal master mother patty plastic case quality assurance stamper steam why vhd the vhd system is extremely versatile and cost effective as a stand alone player plugged into a television set it provides an interactive capability which will satisfy a wide range of applications plug in a computer via the optional interface and any computer can upgrade the interactive capabilities with a genlock capable computer high resolution graphics overlay can provide another new dimension any customer buying vhd will be able to acquire further options as and when he wishes to expand his system but the basic player remains the same in the near future with an ahd adaptor you have advanced high density this is the digital option offering a new range of abilities which include full digital audio computer data storage and digital still pictures with compressed audio in the latter mode the disc will store 1500 high resolution images per side vhd and ahd separately or on the same disc a unique communications system it starts with a basic videodisc player which in itself is a revolution in interactive communications author thorn emi videodisc posted on november 1983 march 2018 categories why vhd tags 1500 images advanced high density ahd computer data storage genlock high resolution interactive communications television applications advice bureau airlines auction galleries banking catalogue shopping corporate affairs community health centres computer familiarisation car showrooms customer care training conference organisers dancing schools defence training demonstrators distance learning departmental stores exhibition stands engineering instructions evening classes estate agents factory instruction further education financial communications furniture showrooms government departments health organisations hospitals information centres induction courses juvenile rehabilitation laboratories libraries local government medical schools museums military training maintenance instructors music teaching new product promotion new product training open university office training personnel departments pension groups public relations publicity departments public services quantity surveyors research establishments sales instruction schools sports centres stock control showrooms training departments technical training tax offices tourist offices travel agents trade union communications universities video displays visual database water boards youth training centres zoos thorn emi videodisc thorn emi video disc manufacturing limited metropolis house 39 45 tottenham court road london w1p 9pd telephone 01 636 7694 telex 296539 author thorn emi videodisc posted on november 1983 march 2018 categories why vhd tags address applications scenarios uses vhd vhd system prices thorn emi video disc manufacturing limited metropolis house 39 45 tottenham court road london w1p 9pd telephone 01 636 7694 telex 296539 disc mastering one side with 60 minutes programme capacity 1 750 00 two sides with 120 minutes programme capacity 3 500 00 disc pressing prices for one or two sided videodiscs pal ntsc compatible_ with cases inside plain jackets per disc 10 50 23 00 51 100 15 00 101 150 12 50 151 200 10 00 201 300 9 00 301 500 8 00 501 100 7 00 special pricing for volumes over 1000 minimum repeat order if a request is made for the swindon plant to retain the master disc materials repeat orders can be accepted at a later stage without re mastering a charge of 300 00 per disc side will be made for this service at the time of re ordering in addition to disc pressing charges the vhd player thorn emi videodisc player model 3d01 with infra red remote control 395 00 the interface thorn emi videodisc vhd computer interface model 3d02 95 00 thorn emi videodisc equipment carries a twelve months warranty prices are exclusive of vat and are subject to change without prior notification full terms and conditions available on application november 1983 a thorn emi company registered office thorn emi house upper saint martin s lane london wc2h 9ed registered in england no 673395 author thorn emi videodisc posted on november 1983 march 2018 categories system prices tags interface mastering player pressing repeat orders swindon the risk business it s 1981 and bbc 1 s the risk business a spin off from tomorrow s world looks at how we will be watching television in the 1980s most likely we will be watching it via sell though videodiscs replacing our 35 vhs beta cassettes with 10 12 discs made by jvc thorn rca or philips all with mutually incompatible systems two of them using a form of microgrooves and one read by a laser which one will the consumer of the 1980s pick and why is sony strangely sitting the battle out ploughing on with tape instead this programme has the front titles cut off on the original vhs and the end is clipped by the tape running out we ve added back the titles so that the makers get their credits author bbc posted on may 1981 march 2018 categories the risk business tags bbc bbc 1 jvc philips rca the risk business thorn emi tomorrow s world search for search sections disc manufacturing system prices the concept the risk business the service why vhd share subjects 1500 images address advanced high density ahd applications bbc bbc 1 class 100 computer data storage genlock glass master high resolution installation interactive communications interactivity interface jim johnston jvc london manufacture mastering peter morley philips plastic case player pos production premastering premaster tape pressing production rca repeat orders scenarios service software advice centre swindon television the risk business thorn emi thorn emi video facilities tomorrow s world uses vhd videodisc bcm transdiffusion london wc1n 3xx 03333 391 247 we cannot help you find or licence programmes issn 2753 ...