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Proceedings of the 39th Midwest Symposium on Circuits and Systems最新文献

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Design of nearly linear phase IIR digital filters with prescribed log magnitude response 具有规定对数幅值响应的近线性相位IIR数字滤波器的设计
Proceedings of the 39th Midwest Symposium on Circuits and Systems Pub Date : 1996-08-18 DOI: 10.1109/MWSCAS.1996.587806
M. Okuda, M. Ikehara, S. Takahashi
{"title":"Design of nearly linear phase IIR digital filters with prescribed log magnitude response","authors":"M. Okuda, M. Ikehara, S. Takahashi","doi":"10.1109/MWSCAS.1996.587806","DOIUrl":"https://doi.org/10.1109/MWSCAS.1996.587806","url":null,"abstract":"In this paper, we propose a new design algorithm for nearly linear phase IIR digital filters with prescribed log magnitude response. The error function used here is the sum of the weighted log magnitude-squared error and phase-squared error, and so it is possible to control log magnitude and phase response directly. The gradient vector of the proposed error function is easily calculated as the closed form solution because of its nature, in which the real and imaginary part of the logarithm of a complex transfer function corresponds to the log magnitude and phase response, respectively. This algorithm is simple and converges quickly. Finally, we show the validity of the proposed algorithm with some examples.","PeriodicalId":321968,"journal":{"name":"Proceedings of the 39th Midwest Symposium on Circuits and Systems","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133077031","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
BiCMOS cascaded bandgap voltage reference BiCMOS级联带隙基准电压
Proceedings of the 39th Midwest Symposium on Circuits and Systems Pub Date : 1996-08-18 DOI: 10.1109/MWSCAS.1996.588110
I. Filanovsky, Yiu-Fai Chan
{"title":"BiCMOS cascaded bandgap voltage reference","authors":"I. Filanovsky, Yiu-Fai Chan","doi":"10.1109/MWSCAS.1996.588110","DOIUrl":"https://doi.org/10.1109/MWSCAS.1996.588110","url":null,"abstract":"A bandgap voltage reference with a circuit providing compensation of the thermal nonlinearity for the base-emitter voltage is described. The temperature dependence of V/sub BE/(T) is linearized using, as the bias current, a sum of two currents one of which is proportional to the third degree, and another to the fourth degree of absolute temperature. Two versions of the circuit are given, one is designed for 5 V, and another for 3 V supply voltage. Theoretical calculations show that the thermal instability of the output reference voltage can be reduced down to 0.2 ppm//spl deg/C. The simulation results for the circuits obtained by extraction from the layouts with non-protected pads give the figures of 4 ppm//spl deg/C (5 V power supply) and 8 ppm//spl deg/C (3 V power supply) in the range -50/spl deg/C to 180/spl deg/C.","PeriodicalId":321968,"journal":{"name":"Proceedings of the 39th Midwest Symposium on Circuits and Systems","volume":"362 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133301473","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: 38
Current-mode differential logic circuits for low power digital systems 用于低功耗数字系统的电流型差分逻辑电路
Proceedings of the 39th Midwest Symposium on Circuits and Systems Pub Date : 1996-08-18 DOI: 10.1109/MWSCAS.1996.594081
M.N. Martin, P. Pouliquen, A. Andreou, M.E. Fraeman
{"title":"Current-mode differential logic circuits for low power digital systems","authors":"M.N. Martin, P. Pouliquen, A. Andreou, M.E. Fraeman","doi":"10.1109/MWSCAS.1996.594081","DOIUrl":"https://doi.org/10.1109/MWSCAS.1996.594081","url":null,"abstract":"A current-mode differential logic scheme is introduced. By biasing in the subthreshold regime, the transistors are operated with maximum normalized transconductance, g/sub m//I. The rapid saturation of devices operated in subthreshold allows for radical scaling of supply voltages to only 300 mV. Application of a back-bias further increases the g/sub m//I of the transistors, and hence the gain of the gates. The back bias also assists in the reduction of stray junction and gate-bulk capacitance. Operating with small voltage swings, delays of a few hundred nanoseconds can be achieved with bias currents of 50 nA. This results in operational speeds of a few megahertz at greatly reduced power consumption compared to standard CMOS digital logic. Experimental results are presented and extrapolated to a scaled version of the circuit.","PeriodicalId":321968,"journal":{"name":"Proceedings of the 39th Midwest Symposium on Circuits and Systems","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128996750","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
VLSI implementation of a fast radix-4 SRT division VLSI实现了一个快速的基数-4 SRT除法
Proceedings of the 39th Midwest Symposium on Circuits and Systems Pub Date : 1996-08-18 DOI: 10.1109/MWSCAS.1996.594031
C. Wey, Cheng-Ping Wang
{"title":"VLSI implementation of a fast radix-4 SRT division","authors":"C. Wey, Cheng-Ping Wang","doi":"10.1109/MWSCAS.1996.594031","DOIUrl":"https://doi.org/10.1109/MWSCAS.1996.594031","url":null,"abstract":"The design of fast divider is an important issue in high speed computing. This paper presents a fast radix-4 SRT division architecture. Instead of finding the correct quotient digit, an estimated quotient digit is first speculated. The speculated quotient digit is used to simultaneously compute the two possible partial remainders for the next step while the quotient digit is being corrected. Thus, the two-step process does not influence the overall speed. Since the decision making circuits can be implemented with simple gate structures, the proposed divider offers fast speed operation. Based on the physical layout, the circuit takes 29l ns for a double precision division (56 bits for fraction part) where the 2 /spl mu/m SCMOS technology in MAGIC was used for layout.","PeriodicalId":321968,"journal":{"name":"Proceedings of the 39th Midwest Symposium on Circuits and Systems","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132310506","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
Identification of contaminating particles in air using artificial neural networks 利用人工神经网络识别空气中的污染颗粒
Proceedings of the 39th Midwest Symposium on Circuits and Systems Pub Date : 1996-08-18 DOI: 10.1109/MWSCAS.1996.594207
P. D. Souza, O. D. Rodrigues, T. Morimoto, Vijayendra K. Garg, Kiyoshi Nomura
{"title":"Identification of contaminating particles in air using artificial neural networks","authors":"P. D. Souza, O. D. Rodrigues, T. Morimoto, Vijayendra K. Garg, Kiyoshi Nomura","doi":"10.1109/MWSCAS.1996.594207","DOIUrl":"https://doi.org/10.1109/MWSCAS.1996.594207","url":null,"abstract":"The present investigation consists of an application of Artificial Neural Networks (ANN) that were trained with the data from several techniques for the identification of particulate matter in atmospheric aerosols in the metropolitan region of Vitoria (MRV), ES, Brazil.","PeriodicalId":321968,"journal":{"name":"Proceedings of the 39th Midwest Symposium on Circuits and Systems","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123062267","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
Fault tolerant algorithms for broadcasting on the star graph network 星图网络广播的容错算法
Proceedings of the 39th Midwest Symposium on Circuits and Systems Pub Date : 1996-08-18 DOI: 10.1109/MWSCAS.1996.593159
N. Lo, B. Carlson, D. Tao
{"title":"Fault tolerant algorithms for broadcasting on the star graph network","authors":"N. Lo, B. Carlson, D. Tao","doi":"10.1109/MWSCAS.1996.593159","DOIUrl":"https://doi.org/10.1109/MWSCAS.1996.593159","url":null,"abstract":"Fault tolerant algorithms are presented for broadcasting on the star graph. In our algorithm fault tolerance is achieved by constructing an isomorphism of the network such that the faulty nodes minimally disrupt the message passing sequence. It is shown that in the presence of r (1/spl les/r/spl les/k-2) faults at most r extra steps are required by our algorithm to perform a one-to-all broadcasting in the L-star network. Our algorithm has the same time complexity as an optimal algorithm.","PeriodicalId":321968,"journal":{"name":"Proceedings of the 39th Midwest Symposium on Circuits and Systems","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123080733","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: 18
Reconfigurable pipelined data converter architecture 可重构的流水线数据转换器架构
Proceedings of the 39th Midwest Symposium on Circuits and Systems Pub Date : 1996-08-18 DOI: 10.1109/MWSCAS.1996.594074
E.K.F. Lee
{"title":"Reconfigurable pipelined data converter architecture","authors":"E.K.F. Lee","doi":"10.1109/MWSCAS.1996.594074","DOIUrl":"https://doi.org/10.1109/MWSCAS.1996.594074","url":null,"abstract":"A reconfigurable pipelined data converter architecture suitable for implementing Field Programmable Mixed analog and digital Array (FPMA) is described. The proposed architecture can be reconfigured to a number of different analog-to-digital converters and/or digital-analog converters for a given number of conversion stages with different resolutions.","PeriodicalId":321968,"journal":{"name":"Proceedings of the 39th Midwest Symposium on Circuits and Systems","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124113175","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: 5
Efficient multicasting and broadcasting in interconnection networks 在互连网络中有效的多播和广播
Proceedings of the 39th Midwest Symposium on Circuits and Systems Pub Date : 1996-08-18 DOI: 10.1109/MWSCAS.1996.593071
P. K. Mannava
{"title":"Efficient multicasting and broadcasting in interconnection networks","authors":"P. K. Mannava","doi":"10.1109/MWSCAS.1996.593071","DOIUrl":"https://doi.org/10.1109/MWSCAS.1996.593071","url":null,"abstract":"Efficiency in broadcasting and multicasting in networks is a major issue. The traditional multicasting and broadcasting techniques do not extend well to wormhole networks and especially to a shared memory multiprocessor environment where the messages are short and need a very low communication overhead. We propose an efficient hardware algorithm for multicasting and broadcasting in a hypercube based shared memory multiprocessor. The method uses logically embedded hierarchical rings for multicasting. Simulation as well as analytical results are shown. The proposed technique can be extended to any network in which rings can be embedded. We reduce both the delays and storage overheads.","PeriodicalId":321968,"journal":{"name":"Proceedings of the 39th Midwest Symposium on Circuits and Systems","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127728857","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
Switching synchronization of avalanche transistors [high-current pulse generation] 雪崩晶体管的开关同步[大电流脉冲产生]
Proceedings of the 39th Midwest Symposium on Circuits and Systems Pub Date : 1996-08-18 DOI: 10.1109/MWSCAS.1996.594201
S. Vainshtein, J. Kostamovaara, R. Myllyla, A. Kilpela, K. Maatta
{"title":"Switching synchronization of avalanche transistors [high-current pulse generation]","authors":"S. Vainshtein, J. Kostamovaara, R. Myllyla, A. Kilpela, K. Maatta","doi":"10.1109/MWSCAS.1996.594201","DOIUrl":"https://doi.org/10.1109/MWSCAS.1996.594201","url":null,"abstract":"150 A/10 ns current pulses across a low-ohmic resistive load (1 /spl Omega/) were obtained using Marx type serial connection of the stages with parallel connection of a few avalanche transistors in each stage. The automatic feedback allows perfect time synchronization of the switching process in all the transistors.","PeriodicalId":321968,"journal":{"name":"Proceedings of the 39th Midwest Symposium on Circuits and Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128968121","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
A genetic algorithm for VLSI channel routing in the presence of cyclic vertical constraints 循环垂直约束下VLSI信道路由的遗传算法
Proceedings of the 39th Midwest Symposium on Circuits and Systems Pub Date : 1996-08-18 DOI: 10.1109/MWSCAS.1996.594182
A. D. Johnson, Rongchung Sun
{"title":"A genetic algorithm for VLSI channel routing in the presence of cyclic vertical constraints","authors":"A. D. Johnson, Rongchung Sun","doi":"10.1109/MWSCAS.1996.594182","DOIUrl":"https://doi.org/10.1109/MWSCAS.1996.594182","url":null,"abstract":"An efficient merger of the channel routing theory and the genetic stochastic search introduces a new paradigm for VLSI channel routing. The feasibility of the paradigm is demonstrated by the first genetic router for Manhattan model channels which contain cyclic vertical constraints. The router has been implemented as a self contained genetic algorithm system. It creates an initial population without violations of constraints using the results of a new theory of locally optimal breaking of cyclic vertical constraints. The population size is problem instance dependent to provide for the preservation of the structural diversity which is built into the initial population. A new encoding scheme and novel crossover and mutation operators are introduced. Convergence rates to optimal solutions are excellent.","PeriodicalId":321968,"journal":{"name":"Proceedings of the 39th Midwest Symposium on Circuits and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129131763","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
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