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Yunfeng Hu, Bin Tang, Chaoyi Chen, Lexing Hu, Qingming Huang, Jiaqi Cai, Jinbo Xie, Bin Li and Zhaohui Wu
In recent years, due to the rise of the Internet of Things (IoT), various sensors have come to be in great demand for IoT devices. Analog-to-digital converters (ADCs) act as an important part of receivers in sensors. To improve the uptime of IoT devices,...
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Jeong-Geun Kim and Kang-Hee Lee
In this paper, a 4-bit digital step attenuator using 0.25 µm GaN HEMT technology for wideband radar systems is presented. A switched-path attenuator topology with resistive T-type attenuators and double-pole double-throw (DPDT) switches was used to achie...
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Mengdi Zhang, Ye Zhao, Zhengsheng Han and Fazhan Zhao
This paper presents a 19 ps precision and 170 M samples/s time-to-digital converter (TDC) in FPGA. Through the direct count method and tapped delay line method, the coarse count and fine count can be extracted, respectively. The direct count is realized ...
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Chih-Hsuan Lin and Kuei-Ann Wen
With nine-axis sensing systems in 5G smartphones, mobile power consumption has become increasingly important, and ultra-low-power (ULP) sensor circuits can decrease power consumption to tens of microwatts. This paper presents an innovative successive app...
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Amine Khaldi
Pág. 143 - 149
In this work, we present a classification of steganographic methods applicable to digital images. We also propose a classification of steganographic methods according to the type of image used. We noticed there are no methods that can be applied to all i...
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Abbas Ali Hussein,Osama Qasim Jumah Al-Thahab
Pág. 43 - 55
Protecting information on various communication media is considered an essential requirement in the present information transmission technology. So, there is a continuous search around different modern techniques that may be used to protect the data from...
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Muhammad Khoiruddin Harahap,Nurul Khairina
Pág. 151 - 158
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Piotr Artiemjew and Aleksandra Kislak-Malinowska
Our concern in this paper is to explore the possibility of using rough inclusions for image steganography. We present our initial research using indiscernibility relation as a steganographic key for hiding information into the stego carrier by means of a...
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Eka Yulia Sari,Ahmad Rifki Harir,Dony Ariyus
Saat ini Indonesia memasuki industri 4.0, dimana apapun berhubungan dengan teknologi. Pertukaran data dan informasi secara digital lebih efektif dan efisien sehingga memudahkan penggunanya. Tentunya data dan informasi ada yang dapat diakses publik dan ad...
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Muhaimin Hasanudin,Deni Kuswoyo,Boy Yuliadi
Pág. 153 - 160
This study uses the technique of incognito data and information into a container in the form of images combined with the addition of the password by using the method of Least Significant Bit (LSB) and the method of Haar Wavelet. Testing the system by sen...
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