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Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)最新文献

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Parallel virtual reconfigurable instrument for high accuracy ultrasound measurements 用于高精度超声测量的并行虚拟可重构仪器
Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI: 10.1109/ICCDCS.2000.869854
M. Caciotta
{"title":"Parallel virtual reconfigurable instrument for high accuracy ultrasound measurements","authors":"M. Caciotta","doi":"10.1109/ICCDCS.2000.869854","DOIUrl":"https://doi.org/10.1109/ICCDCS.2000.869854","url":null,"abstract":"In the introduction the author underlines the meaning of a high accuracy echo-graphic apparatus. After a summary of the maximum likelihood estimation method the software structure of an algorithm that, in recursive way, allows parameter estimation is summarized and its efficiency evaluation as a fit function of echoes is given. Experimental results of the behavior of settled algorithms implemented on a serial computer, are described. The structure of the algorithm implementation on an available parallel computing platform, briefly described, is discussed. Time operation and possible application to echo-graphic systems is also discussed.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131304068","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 new video object motion estimation technique, based on evolutionary programming 一种新的基于进化规划的视频目标运动估计技术
Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI: 10.1109/ICCDCS.2000.869889
JosB G. Cotria, C. P. Markhauser
{"title":"A new video object motion estimation technique, based on evolutionary programming","authors":"JosB G. Cotria, C. P. Markhauser","doi":"10.1109/ICCDCS.2000.869889","DOIUrl":"https://doi.org/10.1109/ICCDCS.2000.869889","url":null,"abstract":"In order to achieve higher video coding efficiency, a new motion estimation and compensation technique has been developed, based on an evolutionary programming algorithm written in C++, that considers not only video object translations, but also rotations and color. The proposed method works as an optimization technique which uses co-evolutionary multipopulation strategy that processes the video objects of a previously segmented initial image of a video sequence, in order to build as many video object motion phenotype (VOMP) populations as main video objects are defined from the segmentation process. The designed and tested algorithm considers only one video object per planar image layer. A (VOMP) is a strings of concatenated parameters, representing predicted video object motion coefficients color information (R,G,B) and fitness values. A test frame is build with the aid of one phenotype string from each of the VOMP populations. Simulations with synthetic images have shown very encouraging results with the proposed motion estimation and compensation algorithm.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133666756","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
Energy minimization for dynamic supply voltage scaling using data dependent voltage level selection 能量最小化的动态电源电压缩放使用数据相关的电压电平选择
Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI: 10.1109/ICCDCS.2000.869862
L. H. Chandrasena, M. Liebelt
{"title":"Energy minimization for dynamic supply voltage scaling using data dependent voltage level selection","authors":"L. H. Chandrasena, M. Liebelt","doi":"10.1109/ICCDCS.2000.869862","DOIUrl":"https://doi.org/10.1109/ICCDCS.2000.869862","url":null,"abstract":"In this paper we propose a workload distribution based quantized voltage level selection method called data-dependent level selection (DDLS) for minimizing energy in data-dependent computations using dynamic supply voltage scaling. In previous works, voltage levels have been selected by dividing maximum normalized workload by the number of discrete voltage levels, and translating workloads to voltage levels. The existing techniques place no emphasis on workload characteristics of data in voltage level selection. Our DDLS technique is workload distribution based and therefore selects minimum energy yielding voltage levels for a given data sequence. Our analysis of Akiyo video sequence shows energy savings of up to 55% when compared to existing methods of voltage level selection.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115727295","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
AIM-Lab: a system for remote characterization of electronic devices and circuits over the Internet AIM-Lab:通过互联网远程表征电子设备和电路的系统
Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI: 10.1109/ICCDCS.2000.869858
T.A. Fieldly, M. Shur, H. Shen, T. Ytterdal
{"title":"AIM-Lab: a system for remote characterization of electronic devices and circuits over the Internet","authors":"T.A. Fieldly, M. Shur, H. Shen, T. Ytterdal","doi":"10.1109/ICCDCS.2000.869858","DOIUrl":"https://doi.org/10.1109/ICCDCS.2000.869858","url":null,"abstract":"We report on the development of AIM-Lab, a remotely operated laboratory for characterization of electronic devices and circuits over the Internet. Specifically, we apply the AIM-Lab concept in a senior/graduate semiconductor devices and circuits, which comes with a laboratory module that includes up to 9 experiments performed on a CMOS chip and a SiC diode. AIM-Lab has been used in the distance learning programs at Rensselaer Polytechnic Institute and at the Norwegian University of Science and Technology.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116313317","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: 22
Low power carry lookahead adder by using dependency between generation and propagation 利用生成与传播之间的依赖关系，实现了低功耗进位前瞻加法器
Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI: 10.1109/ICCDCS.2000.869814
Dongho Kim, T. Ambler
{"title":"Low power carry lookahead adder by using dependency between generation and propagation","authors":"Dongho Kim, T. Ambler","doi":"10.1109/ICCDCS.2000.869814","DOIUrl":"https://doi.org/10.1109/ICCDCS.2000.869814","url":null,"abstract":"The adder is the most important and basic circuit component in the computer arithmetic area. Among the various kinds of adders, the CLA (Carry Lookahead Adder) is generally considered the fastest and most complex adder. The complexity is closely related to power consumption, and a more complex one may require more power consumption. In this paper, we explore the relationship between the generation signal and the propagation signal of the CLA, and we present a low power consumption CLA by taking advantage of the conditional don't care that exists in the generation and propagation signals. Our results show that this proposed CLA can reduce switching activity by 9-11% comparing to a conventional CLA.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"300 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121271759","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
Synthesis of the CCII- using the nullor concept 利用零值概念合成CCII
Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI: 10.1109/ICCDCS.2000.869817
E. Tielo-Cuautle, L. A. Sarmiento-Reyes
{"title":"Synthesis of the CCII- using the nullor concept","authors":"E. Tielo-Cuautle, L. A. Sarmiento-Reyes","doi":"10.1109/ICCDCS.2000.869817","DOIUrl":"https://doi.org/10.1109/ICCDCS.2000.869817","url":null,"abstract":"The synthesis of a CCII- using the nullor concept is presented. First, the properties of the nullor and MI- are introduced. Second, two CCII- designs are proposed through synthesizing the nullor with either an opamp or a BJT. The frequency response is further computed with SPICE. Finally, the implementation of a CCII-based bandpass filter shows its suitability for low voltage applications.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122212059","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: 9
A CMOS 0.8 /spl mu/m programmable charge pump for the output stage of an implantable pacemaker 一种用于植入式起搏器输出级的CMOS 0.8 /spl mu/m可编程电荷泵
Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI: 10.1109/ICCDCS.2000.869804
A. Novo, A. Gerosa, A. Neviani, A. Mozzi, E. Zanoni
{"title":"A CMOS 0.8 /spl mu/m programmable charge pump for the output stage of an implantable pacemaker","authors":"A. Novo, A. Gerosa, A. Neviani, A. Mozzi, E. Zanoni","doi":"10.1109/ICCDCS.2000.869804","DOIUrl":"https://doi.org/10.1109/ICCDCS.2000.869804","url":null,"abstract":"This work proposes a voltage multiplier suitable for a pacemaker pulse generator in a high voltage 0.8 /spl mu/m CMOS technology. The proposed circuit topology can handle the relatively high voltages required to stimulate the heart, while still being able to operate from an almost exhausted pacemaker battery. The circuit can operate with a supply voltage from 2.8 V to 2 V, while the maximum output voltage is about three times the power supply. Fine programmability of the output voltage has been achieved, thus allowing the choice of the optimum trade-off between stimulation efficacy and battery longevity. Moreover the proposed solution takes care of minimizing the parasitic coupling and disturbances between the charge pump and other blocks in the system.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123650975","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
Microwave transistors-the last 20 years 微波晶体管——过去20年
Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI: 10.1109/ICCDCS.2000.869833
F. Schwierz
{"title":"Microwave transistors-the last 20 years","authors":"F. Schwierz","doi":"10.1109/ICCDCS.2000.869833","DOIUrl":"https://doi.org/10.1109/ICCDCS.2000.869833","url":null,"abstract":"This paper provides an overview of the evolution of microwave transistors during the last 20 years. Following a discussion of the situation in 1980 important developments and trends in the field are reviewed. Advanced transistor structures and the semiconductor materials used are examined and the current state of the art of microwave transistors is highlighted.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116653214","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
Noise reduction and loudness compression in a wavelet modelling of the auditory system 听觉系统的小波建模中的降噪和响度压缩
Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI: 10.1109/ICCDCS.2000.869868
T. de Perez, Min Li, H. McAllister, N. Black
{"title":"Noise reduction and loudness compression in a wavelet modelling of the auditory system","authors":"T. de Perez, Min Li, H. McAllister, N. Black","doi":"10.1109/ICCDCS.2000.869868","DOIUrl":"https://doi.org/10.1109/ICCDCS.2000.869868","url":null,"abstract":"Describes the modelling of the normal auditory and hearing-impaired system for hearing aid design and addresses two major problems: noise reduction and loudness compression. This new integrated approach is based on a wavelet transform and a formulation of temporal and spectral psychoacoustic models of masking and loudness sensation. Within the model, a new subtraction algorithm is developed to model the masking phenomena and reduce noise in single-input systems. As a result, the enhanced speech quality has been significantly improved, especially in unvoiced portions. The noise component during silent periods has been attenuated by up to 20 dB. The auditory loudness sensation is also modelled with a homomorphic AGC for time-varying frequency-dependent compensation for loudness recruitment. The dynamic nonlinear weighting is a function of the wavelet coefficients. The homomorphic approach is found to be superior to linear AGC. Finally, the performance of the whole model is evaluated and compared with that obtained using the Chabries's model, and a significant improvement is found. It is concluded that optimal wavelet subtraction and homomorphic AGC are an appropriate combination to synergise noise reduction and loudness recruitment problems in hearing aid design.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117021378","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
The waveform generator based on digital signal processing 基于数字信号处理的波形发生器
Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI: 10.1109/ICCDCS.2000.869878
V. Matic, V. Marinković-Nedelicki
{"title":"The waveform generator based on digital signal processing","authors":"V. Matic, V. Marinković-Nedelicki","doi":"10.1109/ICCDCS.2000.869878","DOIUrl":"https://doi.org/10.1109/ICCDCS.2000.869878","url":null,"abstract":"The waveform generator for radio applications in wide frequency range is described in this paper. Modulating signals can simply be realized using digital signal processing technique. This software method provides the generation of various waveforms, such as tone, Gaussian noise, impulsive noise, FM noise, linear FM signal, FSK signal, electronic music and pseudorandom pulses, without any hardware modifications.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"6 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132836146","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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