2005 IEEE International Symposium on Circuits and Systems最新文献

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Accurate and closed-form SPICE compatible passive macromodels for distributed interconnects with frequency dependent parameters 精确和封闭形式的SPICE兼容的无源宏模型与频率相关的参数分布互连
2005 IEEE International Symposium on Circuits and Systems Pub Date : 2005-05-23 DOI: 10.1109/ISCAS.2005.1465949
N. Nakhla, R. Achar, M. Nakhla
{"title":"Accurate and closed-form SPICE compatible passive macromodels for distributed interconnects with frequency dependent parameters","authors":"N. Nakhla, R. Achar, M. Nakhla","doi":"10.1109/ISCAS.2005.1465949","DOIUrl":"https://doi.org/10.1109/ISCAS.2005.1465949","url":null,"abstract":"Fast and accurate signal integrity analysis is becoming a major requirement in validation of high-speed designs. This demands efficient and accurate models for high-speed distributed interconnects. Also, it has been demonstrated that preserving the passivity of the macromodel is essential to guarantee a stable global transient simulation. An efficient method for the analysis of high-speed distributed interconnects with frequency-dependent parameters is presented The proposed method enables representation of the distributed stamp in terms of simple delay and resistive elements. The new method, while guaranteeing the passivity of the macromodel, provides significant speedup, and enables easy implementation. Necessary formulation and validation examples are given.","PeriodicalId":191200,"journal":{"name":"2005 IEEE International Symposium on Circuits and Systems","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122543175","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
Learning and recalling of phase pattern in coupled BVP oscillators 耦合BVP振荡器相图的学习与记忆
2005 IEEE International Symposium on Circuits and Systems Pub Date : 2005-05-23 DOI: 10.1109/ISCAS.2005.1465218
Takashi Yamamoto, K. Amemiya, Takashi Yamaguchi
{"title":"Learning and recalling of phase pattern in coupled BVP oscillators","authors":"Takashi Yamamoto, K. Amemiya, Takashi Yamaguchi","doi":"10.1109/ISCAS.2005.1465218","DOIUrl":"https://doi.org/10.1109/ISCAS.2005.1465218","url":null,"abstract":"We study a learning and recalling model of phase patterns in a coupled oscillators system. The model used is BVP oscillators coupled from the excitatory unit to both the excitatory and the inhibitory unit. Both coupling strengths are modulated based on the general Hebbian learning rule that depends on the activity of the oscillators. We introduce a parameter, /spl alpha/, which adjusts the ratio of each loading. Applying the phase dynamics theory, which was proposed by Kuramoto, to the present model we determine the adjustable parameter /spl alpha/ in order to bring the stable phase point in the phase equation to the teacher phase relation under a first-order approximation. We numerically ascertain that the recalling phase patterns agree well with the teacher phase pattern all over the range at a certain value of /spl alpha/. Our results show that the exact recalling of the various teacher phase pattern can be achieved by the present model with the Hebbian rule, independent of the number of oscillators.","PeriodicalId":191200,"journal":{"name":"2005 IEEE International Symposium on Circuits and Systems","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122719569","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
An analog modulator/demodulator using a programmable arbitrary waveform generator 一种使用可编程任意波形发生器的模拟调制器/解调器
2005 IEEE International Symposium on Circuits and Systems Pub Date : 2005-05-23 DOI: 10.1109/ISCAS.2005.1466033
R. Chawla, C. Twigg, P. Hasler
{"title":"An analog modulator/demodulator using a programmable arbitrary waveform generator","authors":"R. Chawla, C. Twigg, P. Hasler","doi":"10.1109/ISCAS.2005.1466033","DOIUrl":"https://doi.org/10.1109/ISCAS.2005.1466033","url":null,"abstract":"We present an analog implementation of a modulator/demodulator (programmable analog modulator/demodulator, PAMD) for analog signal processing applications. The PAMD architecture is fully programmable enabling it to be used for a variety of communication schemes and not specifically for a particular application. PAMD uses an architecture similar to a direct digital frequency synthesis implementation to generate the waveforms. We use our programmable floating-gate MOS transistors as analog memory cells to store easily programmed samples of the waveforms. Experimental results showing the programmability along with both modulation and demodulation using the presented architecture are presented. The IC prototype generating eight programmable waveforms was fabricated in a 0.5 /spl mu/m n-well CMOS process and occupies 0.95 mm/sup 2/ of area.","PeriodicalId":191200,"journal":{"name":"2005 IEEE International Symposium on Circuits and Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114188456","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: 11
Various implementations of topographic, sensory, cellular wave computers 各种实现的地形,感官,蜂窝波计算机
2005 IEEE International Symposium on Circuits and Systems Pub Date : 2005-05-23 DOI: 10.1109/ISCAS.2005.1465957
Á. Zarándy, P. Földesy, P. Szolgay, S. Tõkés, C. Rekeczky, T. Roska
{"title":"Various implementations of topographic, sensory, cellular wave computers","authors":"Á. Zarándy, P. Földesy, P. Szolgay, S. Tõkés, C. Rekeczky, T. Roska","doi":"10.1109/ISCAS.2005.1465957","DOIUrl":"https://doi.org/10.1109/ISCAS.2005.1465957","url":null,"abstract":"The cellular wave computer architecture, based on the CNN universal machine principle, has been implemented recently in many different physical forms. The mixed mode CMOS, the emulated digital (cell wise or as aggregated arrays), FPGA, DSP, as well as optical implementations are the main examples. In many cases, the sensory array is integrated as well. The new self contained unit, called Bi-i, winning the product of the year title at the Vision 2003 in Stuttgart as the fastest camera-computer, shows the application interest and impact being capable of sensing-computing with 50000 frames per second. In this paper a clear and concise comparison is presented between the various implementation modes.","PeriodicalId":191200,"journal":{"name":"2005 IEEE International Symposium on Circuits and Systems","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121870465","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: 16
A novel approach to the exact design of first- and second-order Bode-type variable-amplitude bilinear-LDI switched-capacitor equalizers 一阶和二阶波德型变幅双线性ldi开关电容均衡器精确设计的新方法
2005 IEEE International Symposium on Circuits and Systems Pub Date : 2005-05-23 DOI: 10.1109/ISCAS.2005.1465616
B. Nowrouzian, A. Fuller, M. Swamy
{"title":"A novel approach to the exact design of first- and second-order Bode-type variable-amplitude bilinear-LDI switched-capacitor equalizers","authors":"B. Nowrouzian, A. Fuller, M. Swamy","doi":"10.1109/ISCAS.2005.1465616","DOIUrl":"https://doi.org/10.1109/ISCAS.2005.1465616","url":null,"abstract":"This paper presents a novel approach to the exact design of first- and second-order Bode-type variable-amplitude (VA) bilinear-LDI switched-capacitor (SC) equalizers. The proposed design approach is based on the realization of the VA equalizer transfer function as the transfer function of a frequency-independent two-terminal-pair SC network at its input terminal-pair when its output terminal-pair is terminated in a (frequency-dependent) SC one-terminal-pair realization of the dual of the equalizer shaping impedance function. The resulting first-order equalizers produce fan-shaped lowpass or highpass magnitude-frequency responses, while the resulting second-order equalizer produces a bump-shaped (bandpass) magnitude-frequency response. The salient feature of the proposed SC equalizers is that only a single variable capacitor is required to control the fan amplitude in the first-order equalizers and the bump amplitude in the second-order equalizer. Moreover, these equalizers remain BIBO stable for all possible values of the variable capacitor. In addition, they exhibit the important practical feature that a geometrically symmetric change in the value of the variable capacitor causes a corresponding arithmetically symmetric change in the logarithmic magnitude-frequency response of the VA equalizer. An application example is given to illustrate the main results.","PeriodicalId":191200,"journal":{"name":"2005 IEEE International Symposium on Circuits and Systems","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121912038","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
An all-digital data recovery circuit optimization using Matlab/Simulink 利用Matlab/Simulink对全数字数据恢复电路进行优化
2005 IEEE International Symposium on Circuits and Systems Pub Date : 2005-05-23 DOI: 10.1109/ISCAS.2005.1465628
S. I. Ahmed, T. Kwasniewski
{"title":"An all-digital data recovery circuit optimization using Matlab/Simulink","authors":"S. I. Ahmed, T. Kwasniewski","doi":"10.1109/ISCAS.2005.1465628","DOIUrl":"https://doi.org/10.1109/ISCAS.2005.1465628","url":null,"abstract":"The design of an all-digital data recovery (DR) circuit requires careful system-level design space exploration. The advantages of an all-digital implementation are the ease of portability and reduced time-to-market across fabrication processes and with reducing feature sizes. For a selected architecture, this paper explores the effects of sweeping the bit detection interval of a bang-bang phase detector, the phase update interval, and the number of clock phases used for data recovery using a Matlab/Simulink model. The simulation results show the variation of jitter tolerance of the DR circuit with respect to the above parameters. An all-digital architecture can be made adaptive to jitter conditions, if the design trade-offs are known a priori. A statistical graphing/analysis tool is used to present the 3D logarithmic scatter plots.","PeriodicalId":191200,"journal":{"name":"2005 IEEE International Symposium on Circuits and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122038136","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
A phase-detect synchronous mirror delay for clock skew-compensation circuits 用于时钟偏斜补偿电路的相位检测同步镜像延迟
2005 IEEE International Symposium on Circuits and Systems Pub Date : 2005-05-23 DOI: 10.1109/ISCAS.2005.1464777
Kuo-Hsing Cheng, Chen-Lung Wu, Y. Lo, Chia-Wei Su
{"title":"A phase-detect synchronous mirror delay for clock skew-compensation circuits","authors":"Kuo-Hsing Cheng, Chen-Lung Wu, Y. Lo, Chia-Wei Su","doi":"10.1109/ISCAS.2005.1464777","DOIUrl":"https://doi.org/10.1109/ISCAS.2005.1464777","url":null,"abstract":"A new phase-detect synchronous mirror delay (PSMD) circuit is proposed. The PSMD circuit not only can be operated in the narrow pulse clock signal but also can accept the 50% duty-cycle clocks. The conventional SMD can be locked in 2 clock cycle time, but it just can accept only the narrow pulse clock signal. In this proposed PSMD, we have developed a new mirror delay circuit (MCC) which is composed of a phase detector (PD). Such a new MCC can provide the proposed PSMD to operate in not only the narrow pulse clock signal, but also 50% duty-cycle clocks, and locked in 2 clock cycle time. The HSPICE simulation results are based on TSMC 0.18 /spl mu/m 1P6M N-well CMOS process. The simulation results show that the proposed PSMD can be operated from 200MHz to 400MHz and the static phase error is less than 58.7ps. When the input clock frequency is 200MHz and 400MHz, the power dissipation are 6.03mW and 9.87mW, respectively. In addition, the PSMD operation frequency range is dependent on the number of delay cells, input buffer and clock drive, the principle can be a template in designing the issue of frequency tuning range in SMD.","PeriodicalId":191200,"journal":{"name":"2005 IEEE International Symposium on Circuits and Systems","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122119100","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: 6
Directional watermarks in images 图像中的方向水印
2005 IEEE International Symposium on Circuits and Systems Pub Date : 2005-05-23 DOI: 10.1109/ISCAS.2005.1465506
H. Chao, Cheng-Lun Tai, Yuan-Peir Chen
{"title":"Directional watermarks in images","authors":"H. Chao, Cheng-Lun Tai, Yuan-Peir Chen","doi":"10.1109/ISCAS.2005.1465506","DOIUrl":"https://doi.org/10.1109/ISCAS.2005.1465506","url":null,"abstract":"A new watermark scheme based on directional filter banks and wavelet subband decomposition techniques is proposed. In order to embed the mark into the directional subband images, a projection classification algorithm is presented. These subband images with a particular directional property can prevent unauthorized use attacks.","PeriodicalId":191200,"journal":{"name":"2005 IEEE International Symposium on Circuits and Systems","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122121323","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
Moore test using Gray code 摩尔测试使用格雷代码
2005 IEEE International Symposium on Circuits and Systems Pub Date : 2005-05-23 DOI: 10.1109/ISCAS.2005.1465209
T. Hisakado, K. Okumura
{"title":"Moore test using Gray code","authors":"T. Hisakado, K. Okumura","doi":"10.1109/ISCAS.2005.1465209","DOIUrl":"https://doi.org/10.1109/ISCAS.2005.1465209","url":null,"abstract":"The Moore test is a powerful tool for finding all solutions of nonlinear equations. However, this algorithm requires tremendously many interval computations and iterative bisections of regions. This paper describes that Gray code is an effective code for the Moore test. Using the property of the MSB (most significant bit) first algorithm of the Gray code arithmetic, we can perform the Moore test with the least required accuracy, i.e., the least computational cost. Further, we point out that the region bisection corresponds to the MSB first computation by the Gray code arithmetic. Using this fact, we show that the computational results before the bisection are reused for the bisected regions and that the computational cost is considerably reduced.","PeriodicalId":191200,"journal":{"name":"2005 IEEE International Symposium on Circuits and Systems","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122228989","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
On the theory and design of a class of PR causal-stable IIR non-uniform recombination cosine modulated filter banks 一类PR -因果稳定IIR非均匀复合余弦调制滤波器组的理论与设计
2005 IEEE International Symposium on Circuits and Systems Pub Date : 2005-05-23 DOI: 10.1109/ISCAS.2005.1464783
S. Chan, S. Yin
{"title":"On the theory and design of a class of PR causal-stable IIR non-uniform recombination cosine modulated filter banks","authors":"S. Chan, S. Yin","doi":"10.1109/ISCAS.2005.1464783","DOIUrl":"https://doi.org/10.1109/ISCAS.2005.1464783","url":null,"abstract":"This paper studies the theory and design of a class of perfect reconstruction (PR) causal-stable nonuniform recombination cosine modulated filter banks (RN CMFB) with IIR filters. It is based on the RN CMFB previously proposed by one of the authors. A PR FIR RN CMFB of similar specification is first designed. The prototype filters of the CMFB are then model reduced to obtain a nearly PR (NPR) IIR RN CMFB by modifying a model reduction technique proposed by Brandenstein and Unbehauen (1998). With these NPR IIR RN CMFB as initial guess, PR IIR RN CMFB with very good frequency characteristics can be obtained readily by solving a constrained nonlinear optimisation problem using for example the function fmincom from MATLAB. Design results show that the proposed method is very effective in designing PR RN IIR CMFB with good frequency characteristics and different system delays.","PeriodicalId":191200,"journal":{"name":"2005 IEEE International Symposium on Circuits and Systems","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129587756","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: 3
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