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Iee Journal on Computers and Digital Techniques最新文献

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Tabular method for evaluation of incomplete address decoding in microprocessor systems 微处理器系统中不完全地址解码评定的表格方法
Iee Journal on Computers and Digital Techniques Pub Date : 1979-12-01 DOI: 10.1049/IJ-CDT.1979.0056
J. Nelson
{"title":"Tabular method for evaluation of incomplete address decoding in microprocessor systems","authors":"J. Nelson","doi":"10.1049/IJ-CDT.1979.0056","DOIUrl":"https://doi.org/10.1049/IJ-CDT.1979.0056","url":null,"abstract":"A tabular method is described which permits immediate evaluation of the consequences of incomplete address decoding in microprocessor systems. The method is easy to apply and aids microprocessor system design in several ways: (a) the minimal address decoding requirements for a given system can be readily determined (b) undesirable simultaneous addressing of more than one device is avoided (c) address ranges which are available for system expansion are immediately apparent (d) if the available ranges are inadequate, the required additional decoding is readily determined.","PeriodicalId":344610,"journal":{"name":"Iee Journal on Computers and Digital Techniques","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123550487","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}
引用次数: 0
6th annual symposium on computer architecture 第六届计算机体系结构年度研讨会
Iee Journal on Computers and Digital Techniques Pub Date : 1979-12-01 DOI: 10.1049/IJ-CDT:19790058
G. Rao
{"title":"6th annual symposium on computer architecture","authors":"G. Rao","doi":"10.1049/IJ-CDT:19790058","DOIUrl":"https://doi.org/10.1049/IJ-CDT:19790058","url":null,"abstract":"","PeriodicalId":344610,"journal":{"name":"Iee Journal on Computers and Digital Techniques","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121490314","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}
引用次数: 33
Adaptive-channel-capacity store-and-forward buffers 自适应通道容量存储转发缓冲区
Iee Journal on Computers and Digital Techniques Pub Date : 1979-12-01 DOI: 10.1049/IJ-CDT.1979.0052
K. Sohraby
{"title":"Adaptive-channel-capacity store-and-forward buffers","authors":"K. Sohraby","doi":"10.1049/IJ-CDT.1979.0052","DOIUrl":"https://doi.org/10.1049/IJ-CDT.1979.0052","url":null,"abstract":"A store-and-forward message-switching system is considered, in which the capacity of a channel can be changed dynamically in response to the number of messages awaiting transmission. Three different control strategies are considered. In one, the channel capacity is decided at fixed intervals of time; in the second, the interdecision intervals are random but conform to a fixed distribution; in the third, the decision is made on the arrival and departure of each message. The three strategies are analysed and compared.","PeriodicalId":344610,"journal":{"name":"Iee Journal on Computers and Digital Techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131944388","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}
引用次数: 2
Segmentation of terrain images using textural and spectral characteristics 利用纹理和光谱特征分割地形图像
Iee Journal on Computers and Digital Techniques Pub Date : 1979-12-01 DOI: 10.1049/IJ-CDT:19790055
D. Mason
{"title":"Segmentation of terrain images using textural and spectral characteristics","authors":"D. Mason","doi":"10.1049/IJ-CDT:19790055","DOIUrl":"https://doi.org/10.1049/IJ-CDT:19790055","url":null,"abstract":"A method is presented for the segmentation of serial photographs of terrain on the basis of textural as well as spectral characteristics. The method addresses the problems of determining an optimum texture window size, avoiding misclassified areas near region boundaries (owing to the texture window overlapping two or more regions), and coping with textured and untextured regions co-existing in the same scene. The technique is illustrated by an example.","PeriodicalId":344610,"journal":{"name":"Iee Journal on Computers and Digital Techniques","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125365026","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}
引用次数: 8
4th international conference on software engineering 第四届软件工程国际会议
Iee Journal on Computers and Digital Techniques Pub Date : 1979-12-01 DOI: 10.1049/IJ-CDT:19790060
D. Cook
{"title":"4th international conference on software engineering","authors":"D. Cook","doi":"10.1049/IJ-CDT:19790060","DOIUrl":"https://doi.org/10.1049/IJ-CDT:19790060","url":null,"abstract":"","PeriodicalId":344610,"journal":{"name":"Iee Journal on Computers and Digital Techniques","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128676516","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}
引用次数: 48
Identification of multidimensional time series and its application in computer graphics 多维时间序列的识别及其在计算机图形学中的应用
Iee Journal on Computers and Digital Techniques Pub Date : 1979-12-01 DOI: 10.1049/IJ-CDT.1979.0054
I. Witten, C. Corbett
{"title":"Identification of multidimensional time series and its application in computer graphics","authors":"I. Witten, C. Corbett","doi":"10.1049/IJ-CDT.1979.0054","DOIUrl":"https://doi.org/10.1049/IJ-CDT.1979.0054","url":null,"abstract":"This paper extends the well-known technique of linear signal analysis by predictive filtering to the case where the signals are multidimensional. The properties of the simplest possible multidimensional filter, with a 2-dimensional input and of first order, are examined in detail. It is shown that such filters generate linearly deformed logarithmic spirals, including conies as a special case. The technique can be used to identify segments of such curves drawn freehand in a computer graphics environment; and a system which incorporates it is described. One of the most useful features of the system is its ability to transform the curve by controlling the amount of spiralling, rotation, scaling and translation, on command from the user; this is easy to do because the geometric properties can be calculated from the predictive filter coefficients.","PeriodicalId":344610,"journal":{"name":"Iee Journal on Computers and Digital Techniques","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116860862","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}
引用次数: 1
5th Symposium on microprocessors and microprogramming 第五届微处理器和微程序设计研讨会
Iee Journal on Computers and Digital Techniques Pub Date : 1979-12-01 DOI: 10.1049/IJ-CDT:19790057
P. Depledge
{"title":"5th Symposium on microprocessors and microprogramming","authors":"P. Depledge","doi":"10.1049/IJ-CDT:19790057","DOIUrl":"https://doi.org/10.1049/IJ-CDT:19790057","url":null,"abstract":"","PeriodicalId":344610,"journal":{"name":"Iee Journal on Computers and Digital Techniques","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132203922","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}
引用次数: 0
Concerning low-order spectral coefficients 关于低阶谱系数
Iee Journal on Computers and Digital Techniques Pub Date : 1979-10-01 DOI: 10.1049/IJ-CDT.1979.0041
J. Muzio
{"title":"Concerning low-order spectral coefficients","authors":"J. Muzio","doi":"10.1049/IJ-CDT.1979.0041","DOIUrl":"https://doi.org/10.1049/IJ-CDT.1979.0041","url":null,"abstract":"Standard methods for Rademacher-Walsh spectral coefficients involve n2n operations to deduce the complete spectrum for a function of n variables. The number of operations required to evaluate only the low-order coefficients is discussed in this paper and an exact result for the number of operations in the evaluation of all coefficients of orders up to z (for some z less than n) is deduced. Although the number of operations is considerably reduced, data structures of greater complexity are required.","PeriodicalId":344610,"journal":{"name":"Iee Journal on Computers and Digital Techniques","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117035341","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}
引用次数: 2
Method for the diagonosis of a single intermittent fault in combinatorial logic circuits 组合逻辑电路中单个间歇故障的诊断方法
Iee Journal on Computers and Digital Techniques Pub Date : 1979-10-01 DOI: 10.1049/IJ-CDT:19790039
P. Lala, J. Missen
{"title":"Method for the diagonosis of a single intermittent fault in combinatorial logic circuits","authors":"P. Lala, J. Missen","doi":"10.1049/IJ-CDT:19790039","DOIUrl":"https://doi.org/10.1049/IJ-CDT:19790039","url":null,"abstract":"The paper presents a technique, based on probability theory, which detects a well behaved intermittent fault in combinatorial logic circuits. The procedure employs repeated applications of tests that detect solid faults in the circuit. The time period, during which a test is repeatedly applied, depends on the probability of detection desired and is derived from the Poisson distribution of statistics. The percentage of faults located using repeated tests via software simulation agrees very well with the statistical prediction.","PeriodicalId":344610,"journal":{"name":"Iee Journal on Computers and Digital Techniques","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130994960","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}
引用次数: 2
B.C.D. multipliers B.C.D.乘数
Iee Journal on Computers and Digital Techniques Pub Date : 1979-10-01 DOI: 10.1049/IJ-CDT.1979.0049
M. B. Webster, P. W. Baker
{"title":"B.C.D. multipliers","authors":"M. B. Webster, P. W. Baker","doi":"10.1049/IJ-CDT.1979.0049","DOIUrl":"https://doi.org/10.1049/IJ-CDT.1979.0049","url":null,"abstract":"B.C.D. versions of known multiplier designs are presented; both achieve fast multiplication times without the high hardware cost typically associated with high speed. Serial b.c.d. addition and r.o.m. single-digit multipliers permit the substantial reductions in hardware cost, while higher clock frequencies offset the inherent slowness of the serial methods. Greatest cost-effectiveness is seen to be achieved through l.s.i. implementationn of a serial design which is easily extended for higher radix b.c.d. multiplication.","PeriodicalId":344610,"journal":{"name":"Iee Journal on Computers and Digital Techniques","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115402287","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}
引用次数: 0
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