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2008 IEEE Biomedical Circuits and Systems Conference最新文献

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A low-noise CMOS receiver frontend for MRI 一种用于MRI的低噪声CMOS接收器前端
2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI: 10.1109/BIOCAS.2008.4696900
J. Anders, G. Boero
{"title":"A low-noise CMOS receiver frontend for MRI","authors":"J. Anders, G. Boero","doi":"10.1109/BIOCAS.2008.4696900","DOIUrl":"https://doi.org/10.1109/BIOCAS.2008.4696900","url":null,"abstract":"In this paper a novel architecture for an integrated receiver front-end for micro magnetic resonance imaging (micro-MRI) applications is described. While the chip consumes only 9 mA supply current (4 mA in the LNA and 5 mA in the output buffer) from a 3.3 V power supply, it has a measured input referred noise density of only 0.6 nV/radic(Hz). The receiver consists of a reception coil, an on-chip tuning capacitor, a low-noise amplifier, and a 50 Omega output buffer. The system is designed for operation in a B0-field of 7 T corresponding to a frequency of 300 MHz. It is implemented in a 0.35 mum CMOS high-voltage process and occupies a chip area of 850 mum times 500 mum.","PeriodicalId":415200,"journal":{"name":"2008 IEEE Biomedical Circuits and Systems Conference","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124036384","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 distributed I/O low-level controller for highly-dexterous snake robots 一种用于高灵巧蛇形机器人的分布式I/O低级控制器
2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI: 10.1109/BIOCAS.2008.4696861
P. Thienphrapa, P. Kazanzides
{"title":"A distributed I/O low-level controller for highly-dexterous snake robots","authors":"P. Thienphrapa, P. Kazanzides","doi":"10.1109/BIOCAS.2008.4696861","DOIUrl":"https://doi.org/10.1109/BIOCAS.2008.4696861","url":null,"abstract":"A robot can be seen as a set of actuated joints, each connected to a processing unit that senses feedback signals and generates actuation commands. For robots with high locomotive sophistication, commonly seen in medical robotics, the requisite cabling and control processing can become unwieldy. Motivated by dexterous snake-like robots for minimally invasive surgery, this paper explores the use of IEEE 1394 (FireWire), attached directly to low-latency field-programmable gate arrays (FPGAs), to distribute I/O and centralize processing. This increases the viability of complex medical robots by reducing cabling and consolidating processing, thereby making systems more agile, reliable, and scalable.","PeriodicalId":415200,"journal":{"name":"2008 IEEE Biomedical Circuits and Systems Conference","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129614672","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: 7
A 94-μW 10-b neural recording front-end for an implantable brain-machine-brain interface device 一种用于植入式脑-机-脑接口设备的94 μ w - 10b神经记录前端
2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI: 10.1109/BIOCAS.2008.4696914
M. Azin, P. Mohseni
{"title":"A 94-μW 10-b neural recording front-end for an implantable brain-machine-brain interface device","authors":"M. Azin, P. Mohseni","doi":"10.1109/BIOCAS.2008.4696914","DOIUrl":"https://doi.org/10.1109/BIOCAS.2008.4696914","url":null,"abstract":"This paper describes a fully integrated neural recording front-end comprising a low-noise two-stage amplification circuitry and a 10-b successive approximation register (SAR)-based ADC as part of a fully implantable brain-machine-brain interface (BMBI) device for neuroanatomical rewiring of cortical circuitry in an injured brain. Fabricated using the TSMC 0.35 mum 2P/4M n-well CMOS process, the ac-coupled amplification circuitry provides a maximum mid-band ac gain of ~52 dB and features a measured input-referred voltage noise of 3.5 muVrms from 0.1 Hz to 12.8 kHz, while dissipating ~78 muW from 2 V. The SAR ADC features an ENOB of ~9.4 for maximum sampling frequency of ~45 kSa/s, while dissipating only 16 muW. Benchtop as well as in vitro measurement results in saline are reported.","PeriodicalId":415200,"journal":{"name":"2008 IEEE Biomedical Circuits and Systems Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127148098","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: 12
A hybrid microfluidic system for cancer diagnosis based on MEMS biosensors 基于MEMS生物传感器的混合微流控癌症诊断系统
2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI: 10.1109/BIOCAS.2008.4696943
P. Ortiz, N. Keegan, J. Spoors, J. Hedley, A. Harris, J. Burdess, R. Burnett, T. Velten, M. Biehl, T. Knoll, W. Haberer, M. Solomon, A. Campitelli, C. McNeil
{"title":"A hybrid microfluidic system for cancer diagnosis based on MEMS biosensors","authors":"P. Ortiz, N. Keegan, J. Spoors, J. Hedley, A. Harris, J. Burdess, R. Burnett, T. Velten, M. Biehl, T. Knoll, W. Haberer, M. Solomon, A. Campitelli, C. McNeil","doi":"10.1109/BIOCAS.2008.4696943","DOIUrl":"https://doi.org/10.1109/BIOCAS.2008.4696943","url":null,"abstract":"A microfluidic system for cancer diagnosis based around a core MEMS biosensor technology is presented in this paper. The principle of the MEMS biosensor is introduced and the functionalisation strategy for cancer marker recognition is described. In addition, the successful packaging and integration of functional MEMS biosensor devices are reported herein. This ongoing work represents one of the first hybrid systems to integrate a PCB packaged silicon MEMS device into a disposable microfluidic cartridge.","PeriodicalId":415200,"journal":{"name":"2008 IEEE Biomedical Circuits and Systems Conference","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129572317","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: 4
An efficient approximation for the real-time implementation of the Mixture of Trajectory Models decoder 混合轨迹模型解码器实时实现的一种有效逼近
2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI: 10.1109/BIOCAS.2008.4696892
W. Bishop, B.M. Yuy, G. Santhanam, A. Afshar, S. Ryu, K. Shenoy
{"title":"An efficient approximation for the real-time implementation of the Mixture of Trajectory Models decoder","authors":"W. Bishop, B.M. Yuy, G. Santhanam, A. Afshar, S. Ryu, K. Shenoy","doi":"10.1109/BIOCAS.2008.4696892","DOIUrl":"https://doi.org/10.1109/BIOCAS.2008.4696892","url":null,"abstract":"The mixture of trajectory models (MTM) decoder has been used to reconstruct arm trajectories from neural activity. While it produces reasonable results, the computational demands of previously published versions may be too high for many real-time systems. We have developed a novel method of approximating the MTM state posteriors that does not require the use of Newtonpsilas method. We show that this method results in only a small decrease in decoding performance yet reduces computational cost by 56.4%. Additionally, an MTM algorithm using this method of approximating the state posteriors produces more accurate decoded trajectories when using small bin sizes than an MTM algorithm using a Gaussian observation model. The more efficient formulation of the MTM algorithm presented here provides an alternative approximation of this algorithm for use on resource constrained embedded systems.","PeriodicalId":415200,"journal":{"name":"2008 IEEE Biomedical Circuits and Systems Conference","volume":"510 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122900670","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
A CMOS digital pixel sensor with photo-patterned micropolarizer array for real-time focal-plane polarization imaging 一种用于焦平面实时偏振成像的带有微偏振器阵列的CMOS数字像素传感器
2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI: 10.1109/BIOCAS.2008.4696895
Xiaojin Zhao, A. Bermak, F. Boussaid
{"title":"A CMOS digital pixel sensor with photo-patterned micropolarizer array for real-time focal-plane polarization imaging","authors":"Xiaojin Zhao, A. Bermak, F. Boussaid","doi":"10.1109/BIOCAS.2008.4696895","DOIUrl":"https://doi.org/10.1109/BIOCAS.2008.4696895","url":null,"abstract":"In this paper, a CMOS digital pixel sensor integrating a novel photo-patterned micropolarizer array is proposed for real-time polarization imaging. The sensor is based on a compact Pulse Frequency Modulation (PFM) spiking pixel, which provides a relative immunity to the continuing scaling of power supply voltage in CMOS technologies. In contrast to previously reported implementations, the proposed micropolarizer array fabrication technology is not only simple but also completely removes the need for complex selective etching. Instead, we propose to use light to pattern micropolarizer elements at the pixel pitch. Reported results in 0.18 mum CMOS technology validate the concept of a compact, low cost, polarization image sensor integrated on a single chip.","PeriodicalId":415200,"journal":{"name":"2008 IEEE Biomedical Circuits and Systems Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127797756","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
Voltage sensitive dye imaging system for awake and freely moving animals 用于清醒和自由活动动物的电压敏感染料成像系统
2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI: 10.1109/BIOCAS.2008.4696881
Joonseok Park, E. Culurciello, Dongsoo Kim, J. V. Verhagen, S. H. Gautam, V. Pieribone
{"title":"Voltage sensitive dye imaging system for awake and freely moving animals","authors":"Joonseok Park, E. Culurciello, Dongsoo Kim, J. V. Verhagen, S. H. Gautam, V. Pieribone","doi":"10.1109/BIOCAS.2008.4696881","DOIUrl":"https://doi.org/10.1109/BIOCAS.2008.4696881","url":null,"abstract":"A 32 times 32 pixel image sensor in bulk CMOS process for use in a custom voltage sensitive dye imaging system is presented. The system is to be mounted on awake and freely moving animals in order to measure brain activity. The image sensor is capable of on-chip temporal-differencing using a storage capacitor on-chip. Temporal-differencing is used to reduce the stress on the overall readout circuitry in order to meet size and power constraints of such a system. Each 75 mum times 75 mum pixel consists of a photodiode of 74 mum times 34 mum and a storage capacitor of 788 fF. The image sensor has a signal-to-noise ratio of 76 dB.","PeriodicalId":415200,"journal":{"name":"2008 IEEE Biomedical Circuits and Systems Conference","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133434265","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
A size and position invariant event-based human posture recognition algorithm 一种基于大小和位置不变事件的人体姿势识别算法
2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI: 10.1109/BIOCAS.2008.4696930
Shoushun Chen, F. Folowosele, Dongsoo Kim, R. J. Vogelstein, R. Etienne-Cummings, E. Culurciello
{"title":"A size and position invariant event-based human posture recognition algorithm","authors":"Shoushun Chen, F. Folowosele, Dongsoo Kim, R. J. Vogelstein, R. Etienne-Cummings, E. Culurciello","doi":"10.1109/BIOCAS.2008.4696930","DOIUrl":"https://doi.org/10.1109/BIOCAS.2008.4696930","url":null,"abstract":"In this paper we report a size and position invariant human posture recognition algorithm. The algorithm employs a simplified line segment Hausdorff distance classification and uses projection histograms to achieve size and position invariance. Compared to other existing method utilizing line segment Hausdorff distance, the proposed algorithm reduces the computation complexity by 36000 times, for our test images. Combining bio-inspired event-based image acquisition and hardware friendly feature extraction and classification algorithm will lead to a promising technology for use in wireless sensor network.","PeriodicalId":415200,"journal":{"name":"2008 IEEE Biomedical Circuits and Systems Conference","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121231151","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
Automated, accurate, and inexpensive solution-preparation on a digital microfluidic biochip 在数字微流控生物芯片上自动，准确，廉价的溶液制备
2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI: 10.1109/BIOCAS.2008.4696934
Tao Xu, V. Pamula, K. Chakrabarty
{"title":"Automated, accurate, and inexpensive solution-preparation on a digital microfluidic biochip","authors":"Tao Xu, V. Pamula, K. Chakrabarty","doi":"10.1109/BIOCAS.2008.4696934","DOIUrl":"https://doi.org/10.1109/BIOCAS.2008.4696934","url":null,"abstract":"Solution-preparation is a basic and repetitive step for many biological and chemical experiments in the laboratory. It uses stock solutions of sample, reagents, and diluents to derive various mixed solutions with the required concentration levels. Manual solution-preparation methods are time-consuming, imprecise, and they require large volumes of liquid. We propose an electrowetting-based ldquodigitalrdquo microfluidic biochip design for automated solution-preparation. An efficient solution-preparation algorithm is also presented to generate a preparation plan that lists the intermediate mixing steps needed to generate the target solutions with the required concentrations. It determines the type, concentration, and the number of dispensed droplets of stock solutions. The proposed automated solution-preparation algorithm and biochip platform are evaluated using a protein-crystallization application.","PeriodicalId":415200,"journal":{"name":"2008 IEEE Biomedical Circuits and Systems Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121332691","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: 30
Power model for wireless body area network 无线体域网络的功率模型
2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI: 10.1109/BIOCAS.2008.4696859
ShihHeng Cheng, ChingYao Huang
{"title":"Power model for wireless body area network","authors":"ShihHeng Cheng, ChingYao Huang","doi":"10.1109/BIOCAS.2008.4696859","DOIUrl":"https://doi.org/10.1109/BIOCAS.2008.4696859","url":null,"abstract":"In this paper, an analytical power consumption model for beacon-mode and CSMA/CA-mode access schemes is developed for a wireless body area network (WBAN). Apart from considering the conventional collision from intra-network nodes, the model also investigates the collision caused by the nodes from different moving WBAN groups. From the analysis, we will identify the need of having a hybrid-mode access scheme with at least 63.4% power consumption of beacon-mode and double WBAN user capacity of CSMA/CA-mode to support multi-WBAN groups at a manageable power consumption level.","PeriodicalId":415200,"journal":{"name":"2008 IEEE Biomedical Circuits and Systems Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124546478","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
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