{"title":"Surface Acoustic Wave Time-Base Correction Systems","authors":"D. E. Acker","doi":"10.5594/J08763","DOIUrl":"https://doi.org/10.5594/J08763","url":null,"abstract":"Surface-wave acoustic delay lines are adapted to time-base correctors. The basic theory of operation is described. Particular emphasis is placed on the system design which employs the dispersive surface-wave delay lines. Of interest for the future are devices made by the same techniques and processes as used for the semiconductor industry. Surface-wave delay lines satisfy these criteria and therefore, future time-base correctors will no doubt be constructed of large blocks of integrated packages. Soon, time-base correctors with wider correction ranges and other desirable characteristics will be fit into a reasonably sized space at a reasonable cost.","PeriodicalId":302553,"journal":{"name":"Journal of the SMPTE","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133309578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Track Straightness in Helical Scan Video Tape Recorders","authors":"Y. Wada","doi":"10.5594/J10583","DOIUrl":"https://doi.org/10.5594/J10583","url":null,"abstract":"This paper describes a way of achieving interchangeability of tapes recorded on helical scan video tape recorders and lays stress on the shape of the trace of the video head actually recorded on the tape. It describes a method of measuring straightness of track that has been used in a factory producing cassette v.t.r.s.","PeriodicalId":302553,"journal":{"name":"Journal of the SMPTE","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133811209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Helical Videotape Interchangeability Requirements","authors":"K. Benson","doi":"10.5594/J08761","DOIUrl":"https://doi.org/10.5594/J08761","url":null,"abstract":"","PeriodicalId":302553,"journal":{"name":"Journal of the SMPTE","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129400950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Color Decoding a PCM NTSC Television Signal","authors":"J. P. Rossi","doi":"10.5594/J08760","DOIUrl":"https://doi.org/10.5594/J08760","url":null,"abstract":"Several techniques are developed for digital color decoding of NTSC television signals pulse-code modulated at 10.7-MHz rates (three times the color subcarrier frequency) and 14.3-MHz rates (four times the color subcarrier frequency). Digital comb filtering is also explored as a way to achieve superior color decoding. Encoding PCM NTSC television at the 14.3-MHz rate was found to afford the best algorithms for color decoding. A different PCM technique called Phase Alternating Line Encoding (PALE) permits encoding at 10.7 MHz and allows effective digital comb filtering and good color decoding. In the PALE technique, the phase of the 10.7-MHz digital encode command signal is inverted on adjacent television lines. Straight PCM encoding at 10.7 MHz is a poor third choice for comb filtering and color decoding applications.","PeriodicalId":302553,"journal":{"name":"Journal of the SMPTE","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114992933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Minutes of the Annual Meeting of Voting Members of the SMPTE Century Plaza Hotel, Los Angeles","authors":"D. Courtney","doi":"10.5594/J08767","DOIUrl":"https://doi.org/10.5594/J08767","url":null,"abstract":"The meeting was called to order by the Executive Vice-President, as Chairman, at the conclusion of the Get-Together Luncheon, and the Secretary was asked to conduct the business of the meeting. The Executive Director being in possession of 1015 signed proxies, a quorum was declared to be present in person and by proxy.","PeriodicalId":302553,"journal":{"name":"Journal of the SMPTE","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130161907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trends in the Development of Motion-Picture Technology in the USSR","authors":"V. L. Trusko, V. Komar","doi":"10.5594/J08777","DOIUrl":"https://doi.org/10.5594/J08777","url":null,"abstract":"Besides noting the progress in recent years, the prospects of further development are set forth as to the volume of motion-picture production, release printing and distribution, the number of theaters and their capacity. Various cinema systems are covered: Academy format, 35mm anamorphic, wide-screen and 70mm, and transition from one format into the other. Besides development of stereoscopic and varioscopic cinematography, intended for professional purposes and non-theatrical presentation at exhibitions, museums, etc., there are prospects of using holographic methods. The trends in 16mm and 8mm systems are considered. The basic features are outlined for such as camera optics and equipment for film shooting, lighting equipment, special-effects methods, sound recording and location shooting equipment. There are also technical novelties in the field of acoustics and sound stage equipment. Using TV technology and magnetic video-recording for film production of feature films are evaluated. New features of technological processes, raw film stock and equipment for film processing, printing and quality control are considered. Basic features in motion-picture theater design are given, with specifications of widely used and new unified equipment for projection, sound recording and reproduction and power supply. The results of using xenon lamps in cinema theaters are reported. The present state of the art and prospects for more automatization of film presentations in theaters are described, including an automatic system for entire film distribution and exhibition control, based on computer technique.","PeriodicalId":302553,"journal":{"name":"Journal of the SMPTE","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133475387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Progress Committee Report for 1973","authors":"K. Mason","doi":"10.5594/J08776","DOIUrl":"https://doi.org/10.5594/J08776","url":null,"abstract":"","PeriodicalId":302553,"journal":{"name":"Journal of the SMPTE","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114822355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Digital Frame Storage for Television Video","authors":"Scott G. Pursell, H. Newby","doi":"10.5594/J08793","DOIUrl":"https://doi.org/10.5594/J08793","url":null,"abstract":"","PeriodicalId":302553,"journal":{"name":"Journal of the SMPTE","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122288328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Automated Television Station","authors":"Donald K. Hutchinson","doi":"10.5594/J08792","DOIUrl":"https://doi.org/10.5594/J08792","url":null,"abstract":"The history and the inevitability of broadcast automation in general and the nature and operation of the Central Dynamics APC-610-200 station automation system in particular are described. This television station operating system is a stored-program, real-time computer system designed to provide automatic control of real-time operations such as switching, mixing, starting and logging of television master control equipment. In addition the system provides key/disc operation, on terminals, for the traffic operations of building, maintaining and analyzing the station schedule, over an extended period of time. The system accepts as inputs data from traffic operations (and/or the EDP equivalent), stores and manipulates it as required, and then employs it at the appropriate time to perform technical operations. As the system performs its work, logs of operations in both legal and accounting formats are generated along with records of discrepancies and last minute changes from the control room. The APC-610-200 performs these tasks essentially simultaneously and with minimal interference between data inputs, data outputs and technical operations. Only one method of schedule construction is discussed. The overall effects of automating a station have not been considered.","PeriodicalId":302553,"journal":{"name":"Journal of the SMPTE","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127115632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Is Redevelopment of Optical Soundtracks on Gevacolor Print Film T 9.85 Still Required","authors":"K. Staes, L. Hayen, R. Verbrugghe","doi":"10.5594/J08789","DOIUrl":"https://doi.org/10.5594/J08789","url":null,"abstract":"After a brief historical survey, the problems connected with the quality of optical dye soundtrack on Gevacolor Print Film 9.85 are studied. It may be concluded that the use of T 9.85 permits the omission of the hazardous technique of redevelopment without influencing the frequency or the cross-modulation characteristics of the soundtrack. Due to the specially selected bathochrome cyan dye of Gevacolor Print Film T 9.85, only a slight loss in amplitude is noted, when a conventional S1-equipped soundhead is used.","PeriodicalId":302553,"journal":{"name":"Journal of the SMPTE","volume":"440 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134348601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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