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學術出版;;Publications

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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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🏛️國立陽明交通大學機構典藏

Start date: 2010Has files: No

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Now showing 1 - 10 of 21043
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    In the Name of Creativity: En Route to Inspiring Machines
    (2021-09-14)
    Chang, Chun-yien
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    Chen, Ying-ping
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    Department of Computer Science
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    資訊工程學系
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    Contrapuntal Composition and Autonomous Style Development of Organum Motets by using AntsOMG
    (2019-06-28)
    Chang, Chun-yien
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    Chen, Ying-ping
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    資訊工程學系
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    Department of Computer Science
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    A SOC Design of ORICA-based Highly Effective Real-time Multi-channel EEG System
    (2019-01-01)
    Ho, Yun-Lung
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    Huang, Yu-De
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    Wang, Kai-Yen
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    Fang, Wai-Chi
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    電子工程學系及電子研究所
    Independent component analysis (ICA) has been wildly used to improve EEC based application such as brain computer interface (BCI). However, some well know ICA algorithm, such as Infomax ICA, suffering from the problem of convergence latency and make it hard to be apply on real-time application. This paper proposes a highly efficient chip implementation of multi-channel EEC real-time system based on online recursive independent component analysis algorithm (ORICA). The core size of the chip is 1.5525-mm(2) using 28nm CMOS technology. The EEC demonstration board will be implemented with the ORICA chip. The operation frequency and power consumption of the chip are 100 MHz and 17.9 mW respectively. The proposed chip was validated with a real-time circuit integrated system and the average correlation coefficient between simulations results and chip processing results is 0.958.
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    A Reconfigurable, Pulse-shaping Potentiometric Readout System for Bio-Sensing Transistors
    (2019-01-01)
    Lu, Shao-Yung
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    Shan, Siang-Sin
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    Yang, Jiancheng
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    Chang, Chin-Wei
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    Ren, Fan
    This paper presents a new multi-modality readout system for potentiometric electrochemical sensors. The design adopts a pulse modulation at the gate and drain of the Bio-FET sensors to reduce the effects of charge accumulation between the surface of the electrodes and the ion analytes. The adjustable duration and amplitude of stimuli signals provide flexibility for different biosensing applications and a wide range of detectable concentration. Also, an oscillator-based architecture is proposed for digitization and integration. The counting time can be adjusted to enhance the resolution of the readout system. The proposed potentiometric sensing system was tested with 0.1-10 mM Potassium Ferricyanide (K-3[Fe(CN)(6)]), and the results are interpreted in the micro-LCD on the board. The design offers the opportunity for a handheld medical device with fast and real-time monitoring of biomarkers and ion analytes.
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    Microscopic Traffic Monitoring and Data Collection Cloud Platform Based on Aerial Video
    (2020-01-01)
    Chen, Guan-Wen
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    Yeh, Tzu-Chuan
    ;
    Liu, Ching-Yu
    ;
    Ik, Tsi-Ui
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    資訊工程學系
    Real-time traffic video streaming, such as roadside surveillance and aerial video, has been widely used in traffic monitoring nowadays. However, most of the traditional traffic data collection methods lack mobility that can only collect macroscopic data. In this paper, an intelligent traffic monitoring system based on an open source cooperative platform called SAGE2 was developed. Based on the integrated big screen TV wall of SAGE2, a map-based aerial traffic video streaming management interface was designed. In the image pre-processing section, it provides functions such as lens distortion removal, top view projection transforms, and video stabilization; simulate video streaming to provide instant and long-term micro-flow data collection. Micro-traffic flow data provides high-resolution information both in time and space which can be used to analyze the driving behavior of individuals and the public. Combined with the lane level map, it can provide a variety of visual vehicle flow presentations, such as intersection traffic distribution that can also be used to develop an innovative application in the future.
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    Design and Study of a Portable High-frequency Ventilator for Clinical Applications
    (2019-01-01)
    Lu, Shao-Yung
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    Lin, Hau
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    Kuo, Hsu-Tah
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    Wu, Chien-Liang
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    Wu, Wen-Jui
    Treatment costs for ventilator-dependent patients are a substantial burden not only for their family but also for medical systems in general. Recently, using high-frequency ventilators have been shown to reduce the risk of lung injury through low-volume airflow. However, the machines used today remain bulky, costly, and only for use in hospital settings. To provide intermediate therapy for patients between hospitalization and complete discharge, a portable, light-weight high-frequency ventilator is an urgent need. This work presents the design of a portable high-frequency ventilator and a study of its practicality for further clinical medical applications. Through the integration of advanced electronics and mechanical instruments, we develop a portable high-frequency ventilator with reconfigurable oxygen flow rate, applied pressure, and air volume for the needs of individual patients. A miniaturized portable high-frequency ventilator with digital controller and feedback system for stabilization and precision control is implemented. The efficiency of CO2 washout using the proposed ventilator has been demonstrated in animal trials.
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    A 368 x 184 Optical Under-Display Fingerprint Sensor With Global Shutter and High-Dynamic-Range Operation
    (2020-01-01)
    Yin, Ping-Hung
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    Lu, Chih-Wen
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    Wang, Jia-Shyang
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    Chang, Keng-Li
    ;
    Lin, Fu-Kuo
    This study proposes a 368 x 184 optical underdisplay fingerprint sensor designed and prototyped using 0.11-mu m CIS technology. The prototype sensor with global shutter operation and an ADC-embedded in an 8-pixel configuration features low noise, low-power consumption, fast response time, and a smaller signal processing circuit area. Two sets of memory (184 x 92 bytes) are also embedded in the pixel array to save external memory cost. A dynamic range of 126 dB is achieved with 8-segment auto exposure and dark level adjustment with programmable gain control. The prototype fingerprint sensor was successfully embedded in a mobile phone for functional verification, and the power consumption was only 25 mW with a 3.3 V supply voltage. The sensor has a chip size of 9.74 mm x 4.6 mm, a resolution of 1154 dpi, and a sensing area of 73%.
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    A 918MHz Wide-Range CMOS Rectifier with Diode-Feeding and Switch-Capacitor-Based Load Modulation Technique
    (2019-01-01)
    Kuo, Chen-Yi
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    Lu, Chun-An
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    Liao, Yu-Te
    ;
    交大名義發表
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    National Chiao Tung University
    This paper presents a wide-input-range rectifier design with a diode-feeding (DF) architecture and load modulation. Dynamically-biased diodes are connected to the gates of the rectifying transistors to create bias voltage differences for PMOS and NMOS devices and the isolation of the reverse currents at different input power levels. Also, the switch-capacitor-based load modulation scheme is proposed to achieve optimal efficiency over wide-range load current deviations automatically. The proposed four-stage rectifier design was fabricated using 65nm CMOS technology and occupies a silicon area of 0.92 x 0.27mm(2). The measured sensitivity of the rectifier is -15dBm at 1M Omega load, and the peak power conversion efficiency is 28% at a load of 22k Omega With the load modulation scheme, the conversion efficiency is enhanced by >10% in a load current from 7 mu A to 35 mu A, when compared to a design without the load modulation scheme.
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    On Optimizing Signaling Efficiency of Retransmissions for Voice LTE
    (2020-01-01)
    Hsu, Chia-An
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    Lin, Kate Ching-Ju
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    Ren, Yi
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    Tseng, Yu-Chee
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    資訊工程學系
    The emergence of voice over LTE enables voice traffic transmissions over 4G packet-switched networks. Since voice traffic is characterized by its small payload and frequent transmissions, the corresponding control channel overhead would be high. Semi-persistent scheduling (SPS) is hence proposed in LTE-A to reduce such overhead. However, as wireless channels typically fluctuate, tremendous retransmissions due to poor channel conditions, which are still scheduled dynamically, would lead to a large overhead. To reduce the control message overhead caused by SPS retransmissions, we propose a new SPS retransmission protocol. Different from traditional SPS, which removes the downlink control indicators (DCI) directly, we compress some key fields of all retransmissions' DCIs in the same subframe as a fixed-length hint. Thus, the base station does not need to send this information to different users individually but just announces the hint as a broadcast message. In this way, we reduce the signaling overhead and at the same time, preserve the flexibility of dynamic scheduling. Our simulation results show that, by enabling DCI compression, our design improves signaling efficiency by 2.16x, and the spectral utilization can be increased by up to 60%.
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    A 69.3% Efficiency, 6.78-MHz Wireless Power Delivery System with 0X/1X Regulating Rectifier and Reconfigurable Power Amplifier
    (2019-01-01)
    Fuh, Jonathan
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    Yang, Fu-Bin
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    Chen, Po-Hung
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    電子工程學系及電子研究所
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    Department of Electronics Engineering and Institute of Electronics
    In this paper, we present a 6.78-MHz highefficiency wireless power transfer system with a reconfigurable class-D power amplifier and a 0X/1X regulating rectifier. The proposed reconfigurable power amplifier delivers 0.25X/1X output power by adjusting the power-stage configuration to improve system efficiency. To enhance the receiver efficiency, the proposed 0X/1X regulating rectifier with adaptive offset compensation achieves both voltage rectification and voltage regulation in a single conversion stage. The measurement results demonstrate a 90.1% peak receiver efficiency and a 69.3% peak system efficiency. The system provides the load circuit with 5-V regulated output and 250-mW maximum output power.