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1.发明授权公开(公告)号：US06393589B1
公开(公告)日：2002-05-21
申请号：US09154015
申请日：1998-09-16
IPC分类号： H02H305
CPC分类号： G06F11/0757
摘要： A new control circuit for a watchdog timer which is incorporated on the same integrated circuit as a microprocessor or microcontroller. The control circuit permits either permanent or software enablement or disablement of the watchdog timer depending on the operating mode of the microprocessor.
摘要翻译： 用于看门狗定时器的新控制电路，其结合在与微处理器或微控制器相同的集成电路上。 根据微处理器的工作模式，控制电路允许永久性或软件启用或禁用看门狗定时器。
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公开(公告)号：US20100060425A1
公开(公告)日：2010-03-11
申请号：US12432342
申请日：2009-04-29
IPC分类号： H04Q5/22
CPC分类号： G06K7/10009 , H04Q9/00 , H04Q2209/47 , H04Q2209/75 , H04Q2209/88
摘要： Specialized battery assisted command set design methods are disclosed that provide for interference rejection using highly sensitive but relatively broadband RFID tags. The command set design also supports RFID system RF power control for further interference control. The command set design also allows for convenient expansion to active transmitters and receivers in tags operating within the same system. Embodiments of the present invention provide RFID systems having battery-assisted, Semi-Passive RFID tags that operate with sensitive transistor based square law tag receivers utilizing a plurality of tag receiver dynamic range states. Additional enhancement attained via power leveling methods that optimize the amount of transmitted power and interference from a reader in relation to the sensitivity of the RFID tags, their ranges from the reader, and the unique physics of the backscatter RFID radio link.
摘要翻译： 公开了专门的电池辅助命令集设计方法，其提供使用高度灵敏但相对宽的RFID标签的干扰抑制。 命令集设计还支持RFID系统RF功率控制，进一步进行干扰控制。 命令集设计还允许在同一系统内操作的标签中方便地扩展到主动发射机和接收机。 本发明的实施例提供具有电池辅助的半无源RFID标签的RFID系统，其利用多个标签接收器动态范围状态使用基于灵敏晶体管的平方律标签接收器进行操作。 通过功率调整方法获得的附加增强，其优化与RFID标签的灵敏度相关的发送功率和干扰量，读取器的范围以及反向散射RFID无线电链路的独特物理性能。
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