发明名称 |
Programmable selective wake-up for radio frequency transponder |
摘要 |
A remote keyless entry (RKE) transponder has a programmable selective wake-up filter for determining whether the RKE transponder should wake-up to process a received signal. The wake-up filter correlates the timing of an input signal's carrier amplitude on and off time periods to a predefined programmable time period profile for a desired signal which has a certain carrier on time (time period on) and a certain carrier off time (time period off) arranged into a coded "header." When a received signal matches the predefined time period profile, then the RKE transponder will wake-up to process the incoming signal data. The predefined time period profile may be programmable and may be stored in a header configuration register. Each RKE transponder has unique predefined time period on and time period off profiles. |
申请公布号 |
US2005237161(A1) |
申请公布日期 |
2005.10.27 |
申请号 |
US20050079878 |
申请日期 |
2005.03.14 |
申请人 |
MICROCHIP TECHNOLOGY INCORPORATED |
发明人 |
LEE THOMAS Y.;NOLAN JAMES B.;VERNIER STEVE;YACH RANDY;LAMPHIER ALAN |
分类号 |
B60R25/00;G06K19/07;G07C9/00;H04B1/16;(IPC1-7):H04Q5/22 |
主分类号 |
B60R25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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