{"title":"A Self-Timed Ring based TRNG with Feedback Structure for FPGA Implementation","authors":"Jun-Yeong Choe, K. Shin","doi":"10.1109/ICEIC49074.2020.9051375","DOIUrl":"https://doi.org/10.1109/ICEIC49074.2020.9051375","url":null,"abstract":"This paper describes a hardware design of self-timed ring based true random number generator (TRNG) that is suitable for information security applications. To reduce the hardware complexity of TRNG, an entropy extractor with feedback structure was proposed, which reduces the number of ring stages. A set of statistical tests for randomness defined by NIST SP 800–22 were performed by extracting 20 million bits of binary sequences generated by our FSTR-TRNG, and it was found that all 15 tests were satisfied the criteria. The FSTR-TRNG occupies 46 slices of Spartan-6 FPGA device and approximately 2,500 gate equivalents (GEs) with a 180 nm CMOS standard cell library.","PeriodicalId":271345,"journal":{"name":"2020 International Conference on Electronics, Information, and Communication (ICEIC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122239519","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}
{"title":"Small Object Detection in Aerial Imagery using RetinaNet with Anchor Optimization","authors":"Mobeen Ahmad, Muhammad Abdullah, Dongil Han","doi":"10.1109/ICEIC49074.2020.9051269","DOIUrl":"https://doi.org/10.1109/ICEIC49074.2020.9051269","url":null,"abstract":"Deep Learning has successfully solved many computer vision problems sometimes in conjunction with traditional computer vision methods and sometimes by replacing them. In this paper, we aim to solve the problem of object detection by employing different methods from deep learning as well as computer vision. Significant amount of work is done in the domain of generic object detection, where usually objects (foreground) cover majority of image space as compared to background. In this paper we will focus on detecting small objects which constitute a tiny area as compared to background such as aerial imagery where desired objects such as people, cars etc. tend to appear relatively small. Such images have an intrinsic imbalanced class problem because background samples dominate object samples. We propose to use an anchor optimization method which will help reduce unnecessary region proposals as well as it can generate customized anchors depending upon the dataset. It can be used in conjunction with any single stage object detection framework. Its empirically noted that this anchor optimization technique improves accuracy over baseline frameworks.","PeriodicalId":271345,"journal":{"name":"2020 International Conference on Electronics, Information, and Communication (ICEIC)","volume":"193 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122345929","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}
Younghyun Kim, Joshua San Miguel, Setareh Behroozi, Tianen Chen, Kyuin Lee, Yongwoo Lee, Jingjie Li, Di Wu
{"title":"Approximate Hardware Techniques for Energy-Quality Scaling Across the System","authors":"Younghyun Kim, Joshua San Miguel, Setareh Behroozi, Tianen Chen, Kyuin Lee, Yongwoo Lee, Jingjie Li, Di Wu","doi":"10.1109/ICEIC49074.2020.9051208","DOIUrl":"https://doi.org/10.1109/ICEIC49074.2020.9051208","url":null,"abstract":"For error-resilient applications, such as machine learning and signal processing, a significant improvement in energy efficiency can be achieved by relaxing exactness constraint on output quality. This paper presents a taxonomy of hardware techniques to exploit the trade-off between energy efficiency and quality in various computer subsystems. We classify approximate hardware techniques according to target subsystem and support for dynamic energy-quality scaling.","PeriodicalId":271345,"journal":{"name":"2020 International Conference on Electronics, Information, and Communication (ICEIC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126658305","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}
{"title":"Monolithic integration of tunable aperture and lens for distance sensor","authors":"Yumee Kim, K. Chun, I. Saad","doi":"10.1109/ICEIC49074.2020.9051387","DOIUrl":"https://doi.org/10.1109/ICEIC49074.2020.9051387","url":null,"abstract":"A tunable aperture and lens are monolithically fabricated in wafer-level. The tunable aperture inserted in a camera can estimate distance as comparing blur of images by two different size apertures. We design optical system and integrate tunable aperture and first lens of camera. The plano-concave lens is fabricated by anodic bonding and thermal reflow under atmospheric pressure with one mask. The silicon substrate is used as spacer between tunable aperture and lens. Another glass substrate is attached to the silicon substrate by triple anodic bonding for tunable aperture operated by liquid crystal. The lens has diameter of 4.5 mm and sag height of 566 um and the tunable aperture has f-numbers of 1.8 and 4.0. This fabrication can control parameter of lens easily. Also, it can reduce error by alignment and gap among apertures and lenses. This distance sensor can be applied to the Advanced Driver Assistance System (ADAS).","PeriodicalId":271345,"journal":{"name":"2020 International Conference on Electronics, Information, and Communication (ICEIC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121065544","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}
{"title":"A New Approach to Designing Type 3 Compensator for Voltage-Mode Controlled Buck Converter","authors":"Syam Kumar Pidaparthy, Donghyuk Kim, B. Choi","doi":"10.1109/ICEIC49074.2020.9051273","DOIUrl":"https://doi.org/10.1109/ICEIC49074.2020.9051273","url":null,"abstract":"This paper presents a new design approach to the type 3 compensator for voltage-mode controlled (VMC) buck converter for good closed-loop performance over a wide input voltage and load current range. The new design method offers superior load and line transient responses to the existing methods, such as K factor method and computer-aided iterative technique. A design example is presented to show the superiority of the proposed design technique to the existing designing techniques. The effectiveness of proposed design technique is verified using PSpice and PSIM time-domain simulations.","PeriodicalId":271345,"journal":{"name":"2020 International Conference on Electronics, Information, and Communication (ICEIC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115855629","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}
Kyoung-Il Do, Byung-Suk Lee, Jeong-Ju Seo, Je-Wook Woo, Yong-Seo Koo
{"title":"A Study on the ESD Protection Device LIGBT with Floating N+ Diffusion Region Using Stack Technology","authors":"Kyoung-Il Do, Byung-Suk Lee, Jeong-Ju Seo, Je-Wook Woo, Yong-Seo Koo","doi":"10.1109/ICEIC49074.2020.9051054","DOIUrl":"https://doi.org/10.1109/ICEIC49074.2020.9051054","url":null,"abstract":"In this paper, we propose a Lateral insulated-gate bipolar transistor (LIGBT) based device using stack technology for electrostatic discharge (ESD) protection. This new ESD surge protection device inserts a floating N + region into the N-Well of a conventional LIGBT structure to provide a low trigger voltage and a high holding voltage. In addition, the stack technology makes it possible to apply in applications requiring higher voltages by increasing the trigger voltage and holding voltage.","PeriodicalId":271345,"journal":{"name":"2020 International Conference on Electronics, Information, and Communication (ICEIC)","volume":"58 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114000985","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}
{"title":"High Efficiency 1700V 4H-SiC UMOSFET with Local Floating Superjunction","authors":"Jinyoung Goh, Kwangsoo Kim","doi":"10.1109/ICEIC49074.2020.9051234","DOIUrl":"https://doi.org/10.1109/ICEIC49074.2020.9051234","url":null,"abstract":"This paper introduces an improved efficiency 4H-SiC MOSFET structure. Compared to conventional p-shielding UMOSFETs, the proposed 4H-SiC UMOSFET with a local floating superjunction (LFS-UMOSFET) can reduce the on-resistance while maintaining a 1700 V breakdown voltage. In addition, it shows an improvement in switching loss. To verify the improvement, the conventional p-shielding UMOSFET and the proposed UMOSFET are modeled for energy loss. The simple buck convertor is used to measure power loss and junction temperature. The structure is based on a conventional trench bottom p-shielding UMOSFET with the superjunction structure located beneath the p-shielding. It was optimized for various variables to improve the on-resistance while maintaining the breakdown voltage. The proposed UMOSFET showed a 48% reduction in the specific on-resistance and a 20.6% reduction in the switching loss. Electrical characteristics is simulated by sentaurus TCAD, and modeling and circuit simulation is simulated by PSIM, a power circuit simulator.","PeriodicalId":271345,"journal":{"name":"2020 International Conference on Electronics, Information, and Communication (ICEIC)","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131372193","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}
{"title":"Convolutional Neural Network-based Direction-of-Arrival Estimation using Stereo Microphones for Drone","authors":"Jeonghwan Choi, Joon‐Hyuk Chang","doi":"10.1109/ICEIC49074.2020.9051364","DOIUrl":"https://doi.org/10.1109/ICEIC49074.2020.9051364","url":null,"abstract":"Recently, with the development of drone technology, various researches applying drones have been conducted. Among them, sound source localization for the drone is an important research topic because it can be utilized to find the person in an emergency. However, microphones mounted on the drone capture the ego-noise such as wind and fan noise generated from propellers, resulting in the extremely low signal-to-ratio condition. In this paper, we propose a method of direction-of-arrival (DOA) estimation using stereo microphones for the drone. To cope with the ego-noise, parametric multi-channel Wiener filter is used. After that, power level-based features are fed into the convolutional neural network model to classify the DOA of the desired speech signal. To evaluate our method, we used mean square error between the estimate and reference DOA as a metric. In our experiments, we recorded all utterances used to train and test in a real environment, and the result showed that the proposed system can be used to localize the sound source for the drone.","PeriodicalId":271345,"journal":{"name":"2020 International Conference on Electronics, Information, and Communication (ICEIC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134431883","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}
{"title":"Characterization of Time Evolving Graph Using State-Space Modelling and its Application in Alzheimer's Disease Detection","authors":"Himanshu Padole, S. Joshi, T. Gandhi","doi":"10.1109/ICEIC49074.2020.9088928","DOIUrl":"https://doi.org/10.1109/ICEIC49074.2020.9088928","url":null,"abstract":"Methods based on graph theoretical analysis of brain imaging data have been widely applied to detect various brain diseases like Alzheimer's disease (AD), autism spectrum disorder etc. But most of the conventional graph based methods assume the stationarity of the graph signals involved, neglecting the time varying nature of the associated graph connectivity. Recent studies involving the dynamic brain connectivity network revealed the altered brain connectivity dynamics in the disease state, thus making it a potential biomarker for the disease detection. In this paper, we propose a novel approach to characterize the dynamics of the time varying graph using the state-space representation of the graph signal, wherein the dynamic brain connectivity is modelled as a state of the system while the input graph signal serves as an observation. The dynamics of the time varying graph connectivity is then characterized by the state transition matrix which is obtained using the Kalman filtering algorithm. To detect AD using the altered brain connectivity dynamics, the SVM classifier is first trained using the state transition matrices of the training subjects, which is then used to classify a test subject as a normal control or having a mild cognitive impairment, the early stage of AD . The efficacy of the proposed model is verified using the resting state fMRI data from the ADNI dataset, wherein the proposed model outperformed state-of-the-art AD detection methods, possibly due to its ability to effectively characterize the brain connectivity dynamics.","PeriodicalId":271345,"journal":{"name":"2020 International Conference on Electronics, Information, and Communication (ICEIC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133777249","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}
{"title":"A Low Power Integrate and Fire Neuron Circuit for Spiking Neural Network","authors":"Jong-Beom Seo, K. Min, D. Kim, D. Kim, H. Mo","doi":"10.1109/ICEIC49074.2020.9051292","DOIUrl":"https://doi.org/10.1109/ICEIC49074.2020.9051292","url":null,"abstract":"In this paper, we proposed the current mirror based neuron circuit with the cascode structure added. Adding a cascode structure reduces the current fluctuation due to the membrane potential. And we compared two type of the neuron circuit in comparative operation, using inverters and a comparator. And we proposed the more efficient type of neuron circuit in terms of power consumption.","PeriodicalId":271345,"journal":{"name":"2020 International Conference on Electronics, Information, and Communication (ICEIC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115076385","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}