Analog memristive memory with applications in audio signal processing  

作　　者：DUAN ShuKai HU XiaoFang WANG LiDan LI ChuanDong 

机构地区：[1]School of Electronics and Information Engineering, Southwest University [2]Department of Mechanical and Biomedical Engineering, City University of Hong Kong

出　　处：《Science China(Information Sciences)》2014年第4期239-253,共15页中国科学（信息科学）（英文版）

基　　金：supported by National Natural Science Foundation of China(Grant Nos.60972155,61101233);Fundamental Research Funds for the Central Universities(Grant Nos.XDJK2012A007,XDJK2013B011);University Excellent Talents Supporting Foundations in of Chongqing(Grant No.2011-65);University Key Teacher Supporting Foundations of Chongqing(Grant No.2011-65);Technology Foundation for Selected Overseas Chinese Scholars,Ministry of Personnel in China(Grant No.2012-186);National Science Foundation for Post-doctoral Scientists of China(Grant No.CPSF20100470116);"Spring Sunshine Plan"Research Project of Ministry of Education of China(Grant No.z2011148)

摘　　要：Since the development of the HP memristor, much attention has been paid to studies of memris- tive 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.Since the development of the HP memristor, much attention has been paid to studies of memris- tive 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.

关 键 词：MEMRISTOR analog memory circuit simulation record/play system audio signal storage 

分 类 号：TP333[自动化与计算机技术—计算机系统结构] TN912.3[自动化与计算机技术—计算机科学与技术]