Analog memristive memory with applications in audio signal processing |
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Authors: | DUAN ShuKai HU XiaoFang WANG LiDan LI ChuanDong |
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Affiliation: | [1]School of Electronics and Information Engineering, Southwest University, Chongqing 400715, China [2]Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Hong Kong 999077, China |
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Abstract: | Since the development of the HP memristor,much attention has been paid to studies of memristive devices and applications,particularly memristor-based nonvolatile semiconductor memory.Owing to its unique properties,theoretically,one could restart a memristor-based computer immediately without the need for reloading the data.Further,current memories are mainly binary and can store only ones and zeros,whereas memristors have multilevel states,which means a single memristor unit can replace many binary transistors and realize higher-density memory.It is believed that memristors can also implement analog storage besides binary and multilevel information memory.In this paper,an implementation scheme for analog memristive memory is considered.A charge-controlled memristor model is derived and the corresponding SPICE model is constructed.Special write and read operations are demonstrated through numerical analysis and circuit simulations.In addition,an audio analog record/play system using a memristor crossbar array is designed.This system can provide great storage capacity(long recording time)and high audio quality with a simple small circuit structure.A series of computer simulations and analyses verify the effectiveness of the proposed scheme. |
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Keywords: | memristor analog memory circuit simulation record/play system audio signal storage |
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