📄 g7-2.htm
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0052)http://www.mc21st.com/techfield/systech/gsm/g7-2.htm -->
<HTML><HEAD><TITLE>GSM蜂窝移动通信系统－第七讲 SIM卡(2)</TITLE><!-- #BeginTemplate "/Templates/systech-gsm.dwt" --><!-- #BeginEditable "doctitle" --><!-- #EndEditable --><LINK
href="g7-2.files/main.css" type=text/css rel=stylesheet>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<SCRIPT language=JavaScript>
<!--
function MM_reloadPage(init) { //reloads the window if Nav4 resized
if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
// -->
</SCRIPT>
<META content="Microsoft FrontPage 5.0" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff leftMargin=2 topMargin=2>
<DIV id=Layer1
style="Z-INDEX: 1; LEFT: 671px; WIDTH: 81px; POSITION: absolute; TOP: 108px; HEIGHT: 76px"><IMG
height=77 src="g7-2.files/techspeech.gif" width=80></DIV>
<TABLE width="100%" border=0>
<TBODY>
<TR>
<TD> </TD></TR></TBODY></TABLE><!-- #BeginEditable "article" -->
<TABLE borderColor=#6666ff width="98%" align=center border=1>
<TBODY>
<TR>
<TD borderColor=#6699ff><FONT
size=2>您的位置：技术园地>技术讲座-GSM蜂窝移动通信系统 </FONT></TD></TR>
<TR>
<TD borderColor=#6699ff bgColor=#ccffff>
<DIV align=center><FONT size=4><B><SPAN
style="FONT-SIZE: 15pt; COLOR: navy; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-hansi-font-family: 'Times New Roman'"><SPAN
lang=EN-US>第七讲 SIM卡<O:P> (2)</O:P> </SPAN></SPAN></B></FONT></DIV></TD></TR>
<TR>
<TD background=g7-2.files/bgyellow2.gif>
<DIV align=center>
<P> </P>
<TABLE cellSpacing=1 cellPadding=1 width="98%" border=0>
<TBODY>
<TR>
<TD width="13%"> </TD>
<TD width="82%">
<P class=MsoNormal
style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><B>7.2<SPAN
style="mso-spacerun: yes"> </SPAN>SIM卡简介<O:P>
</O:P></B></SPAN></P>
<P class=MsoNormal
style="TEXT-JUSTIFY: inter-ideograph; TEXT-ALIGN: justify"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><B><FONT color=#0099cc>1.<SPAN
style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal; mso-hansi-font-family: Times New Roman">
</SPAN>SIM卡的结构和类型<O:P>
</O:P></FONT><O:P></O:P></B><O:P></O:P></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 21pt; TEXT-ALIGN: justify"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷体_GB2312 color=#000066
size=3>SIM卡是带有微处理器的智能芯片卡，它的构成是以下几个模块：<O:P> </O:P></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN><FONT face=楷体_GB2312 color=#000066>--- CPU<O:P>
</O:P></FONT></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷体_GB2312 size=3>--- 程序存储器(ROM)<O:P> </O:P></FONT><FONT
size=3><O:P></O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷体_GB2312 size=3>--- 工作存储器(RAM)</FONT><FONT size=3><O:P>
</O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷体_GB2312 size=3>--- 数据存储器(EPROM或E<SUP>2</SUP>PROM)<O:P>
</O:P></FONT><FONT size=3><O:P></O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷体_GB2312 size=3>--- 串行通信单元<O:P>
</O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><FONT
color=#000066><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷体_GB2312
size=3>这五个模块必须集成在一块集成电路中，否则其安全性会受到威胁。因为，芯片间的连线可能成为非法存取和盗用<SPAN
lang=EN-US>SIM卡的重要线索。</SPAN></FONT></SPAN></FONT><FONT
face=楷体_GB2312><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN lang=EN-US><O:P>
</O:P></SPAN></FONT></SPAN></FONT><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3> <O:P> </O:P></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷体_GB2312 color=#000066 size=3>在实际使用中有两种功能相同而形式不同的<SPAN
lang=EN-US>SIM卡：<O:P> </O:P></SPAN></FONT><FONT color=#000066
size=3><SPAN lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN>(a) <FONT
face=楷体_GB2312>卡片式(俗称大卡)SIM卡，这种形式的SIM卡符合有关IC卡的ISO…7816标准，类似IC卡。<O:P>
</O:P></FONT><O:P></O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN>(b) <FONT
face=楷体_GB2312>嵌入式(俗称小卡)SIM卡，其大小只有25mm×15mm，是半永久性地装入到移动台设备中的卡。</FONT><O:P>
</O:P></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><FONT
color=#000066><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
face=楷体_GB2312 size=3>两种卡外装都有防水、耐磨、抗静电、接触可靠和精度高的特点。<SPAN
lang=EN-US><O:P> </O:P></SPAN></FONT></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN lang=EN-US><O:P></O:P></SPAN></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt; TEXT-ALIGN: justify"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3> <O:P> </O:P></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN
lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><FONT
size=3><SPAN
style="mso-hansi-font-family: Times New Roman; mso-spacerun: yes">
</SPAN><B><FONT color=#0099cc>2．SIM卡的软件特性<O:P>
</O:P></FONT></B></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 0px; TEXT-JUSTIFY: inter-ideograph; MARGIN-BOTTOM: 0px; TEXT-ALIGN: justify"><SPAN
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -