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公开(公告)号：US08436714B2
公开(公告)日：2013-05-07
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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公开(公告)号：US08421598B1
公开(公告)日：2013-04-16
申请号：US12478672
申请日：2009-06-04
IPC分类号： H04Q5/22
CPC分类号： G06K19/0701 , G06K7/10039 , G06K19/0715 , H04Q2213/13095
摘要： The present invention discloses battery assisted RFID system RF power control implementations 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. Tag transmit power control implementations are also disclosed. These methods enhance system reliability when employing battery assisted RFID tags that operate with sensitive transistor based square law tag receivers and highly sensitive RFID readers intended to take advantage of outstanding tag sensitivity. Further enhancement is achieved via implementation of specialized commands that optimally support the power control operations, otherwise control system interference, and allow maximum usage of high sensitivity in both tags and readers.
摘要翻译： 本发明公开了电池辅助RFID系统RF功率控制实现，其优化了与RFID标签的灵敏度相关的发送功率和来自读取器的干扰量，读取器的范围以及反向散射RFID无线电链路的独特物理 。 还公开了标签发射功率控制实现。 这些方法在采用电磁辅助RFID标签时可以提高系统的可靠性，该标签采用敏感晶体管的平方律标签接收器和高灵敏度RFID读取器，旨在利用突出的标签灵敏度。 通过实施最佳支持功率控制操作的专用命令，否则控制系统干扰，并允许在标签和读取器中最大限度地使用高灵敏度来实现进一步的增强。
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3.发明授权Battery assisted RFID tag with square-law receiver and optional part time active behavior 有权电池辅助RFID标签与平方律接收器和可选的兼职活动行为公开(公告)号：US09367711B1
公开(公告)日：2016-06-14
申请号：US12204774
申请日：2008-09-04
IPC分类号： H04Q5/22 , G06K7/00 , G06K19/077
CPC分类号： G06K7/0008 , G06K19/0702 , G06K19/07749
摘要： 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. Embodiments of the present invention are also enhanced with receiver training and synchronizing methods suited to the high tag sensitivity and need for dynamic range state switching. These enhancements may employ pseudo-random sequence based receiver training, activation signaling, and frame synchronizing. Further enhancement is achieved via design of system command sets and tag state machine behavior that control system interference and allow maximum usage of high sensitivity. Command set design also allows for convenient expansion to active transmitters and receivers in tags operating within the same system. 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： 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。 本发明的实施例还通过适用于高标签灵敏度的接收机训练和同步方法以及对动态范围状态切换的需要而增强。 这些增强可以采用基于伪随机序列的接收机训练，激活信令和帧同步。 通过设计系统命令集和标签状态机行为来实现进一步的增强，可以控制系统的干扰并允许最大限度地使用高灵敏度。 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。 通过功率调整方法获得的附加增强，其优化了与RFID标签的灵敏度相关的发送功率和干扰的量级，读取器的范围以及反向散射RFID无线电链路的独特物理学特性。
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公开(公告)号：US08581704B2
公开(公告)日：2013-11-12
申请号：US12369713
申请日：2009-02-11
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10019 , G06K19/0723 , H04Q2213/13095
摘要： Embodiments of the present invention provide for RFID systems that employ a plurality of battery assisted semi-passive and semi-active RFID tags with optimized system operation. The RFID tags feature receivers operating with multiple dynamic range states with square law mode for improved sensitivity, and part time active transmit in the tag to supplement its backscatter transmitter and thus support system operation taking full advantage of the sensitivity of the tag. In certain embodiments of the invention, tag sensitivity and reliability are further enhanced by the use pseudo-random sequence based receiver training and frame synchronizing.
摘要翻译： 本发明的实施例提供了使用具有优化的系统操作的多个电池辅助半无源和半有源RFID标签的RFID系统。 RFID标签的特征在于具有多个动态范围状态的接收机，其具有平方律模式以提高灵敏度，并且标签中的兼职主动传输补充其反向散射发射机，从而充分利用标签的灵敏度来支持系统操作。 在本发明的某些实施例中，通过使用基于伪随机序列的接收器训练和帧同步来进一步增强标签灵敏度和可靠性。
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5.发明授权Microcontroller having a digital to frequency converter and/or a pulse frequency modulator 有权具有数字到频率转换器和/或脉冲频率调制器的微控制器公开(公告)号：US07466753B2
公开(公告)日：2008-12-16
申请号：US11000777
申请日：2004-12-01
CPC分类号： H03K7/06
摘要： A microcontroller having digital to frequency converter and pulse frequency modulator capabilities. The digital to frequency converter (DFC) generates a 50 percent duty cycle square wave signal that may be varied in frequency, wherein the 50 percent duty cycle square wave signal is directly proportional and linear with a count value put into an increment register. The pulse to frequency modulator (PFM) generates pulses having pulse widths of the input clock for each rollover of a counter. The frequency of these pulses is directly proportional and linear with the count value put into the increment register.
摘要翻译： 具有数字到频率转换器和脉冲频率调制器功能的微控制器。 数字到频率转换器（DFC）产生频率可能变化的50％占空比方波信号，其中50％的占空比方波信号与放入增量寄存器的计数值成正比。 脉冲到频率调制器（PFM）产生具有每个计数器翻转的输入时钟的脉冲宽度的脉冲。 这些脉冲的频率与放入增量寄存器的计数值成正比并且成线性关系。
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6.发明授权Battery assisted RFID system RF power control and interference mitigation methods 有权电池辅助RFID系统RF功率控制和干扰减轻方法公开(公告)号：US08410906B1
公开(公告)日：2013-04-02
申请号：US12205718
申请日：2008-09-05
IPC分类号： H04Q5/22
CPC分类号： G06K19/0701 , G06K7/10039 , G06K19/0715 , H04Q2213/13095
摘要： The present invention discloses battery assisted RFID system RF 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. These methods enhance system reliability when employing battery assisted RFID tags that operate with sensitive transistor based square law tag receivers and highly sensitive RFID readers intended to take advantage of outstanding tag sensitivity. Further enhancement is achieved via design of system command sets and tag state machine behavior that optimally support the power level operations, power level operations that span across tag hibernation and normal modes, and that otherwise control system interference. Embodiments of the present invention are also enhanced with receiver training and synchronizing methods suited to the high tag sensitivity and need for dynamic range state switching. These enhancements may employ pseudo-random sequence based receiver training, activation signaling, and frame synchronizing.
摘要翻译： 本发明公开了一种电池辅助RFID系统RF功率调平方法，其优化了RFID标签的灵敏度，读取器的灵敏度以及反向散射RFID无线电链路的独特物理性质的读取器的发射功率和干扰量 。 这些方法在采用电磁辅助RFID标签时可以提高系统的可靠性，该标签采用敏感晶体管的平方律标签接收器和高灵敏度RFID读取器，旨在利用突出的标签灵敏度。 通过设计系统命令集和标签状态机行为来实现进一步的增强，其最佳地支持功率电平操作，横跨标签休眠和正常模式的功率电平操作，以及否则控制系统干扰。 本发明的实施例还通过适用于高标签灵敏度的接收机训练和同步方法以及对动态范围状态切换的需要而增强。 这些增强可以采用基于伪随机序列的接收机训练，激活信令和帧同步。
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公开(公告)号：US08384523B1
公开(公告)日：2013-02-26
申请号：US12205745
申请日：2008-09-05
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. Embodiments of the present invention are also enhanced with receiver training and synchronizing methods suited to the high tag sensitivity and need for dynamic range state switching. These enhancements may employ pseudo-random sequence based receiver training, activation signaling, and frame synchronizing. 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。 本发明的实施例还通过适用于高标签灵敏度的接收机训练和同步方法以及对动态范围状态切换的需要而增强。 这些增强可以采用基于伪随机序列的接收机训练，激活信令和帧同步。 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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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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公开(公告)号：US06446212B1
公开(公告)日：2002-09-03
申请号：US09141899
申请日：1998-08-28
IPC分类号： G06F126
CPC分类号： G06F1/26
摘要： A processing unit, preferably a RISC based microcontroller, is coupled to a processing unit voltage regulator. The processing unit voltage regulator is used for controlling an operating voltage of the processing unit. A control unit is coupled to the processing unit voltage regulator and to the processing unit for setting a regulated voltage level for the processing unit voltage regulator. A voltage supply coupled to the control unit and to the processing unit voltage regulator is provided and is used for supplying the operating voltage for the processing unit wherein the operating voltage will have an upper and lower operating voltage level and an voltage supply operating range of approximately two to eighteen volts with relatively little variation in operating current.
摘要翻译： 处理单元，优选地基于RISC的微控制器，耦合到处理单元电压调节器。 处理单元电压调节器用于控制处理单元的工作电压。 控制单元耦合到处理单元电压调节器和处理单元，用于为处理单元电压调节器设置稳定的电压电平。 提供耦合到控制单元和处理单元电压调节器的电压源，并且用于提供用于处理单元的工作电压，其中工作电压将具有上下工作电压电平和约为 两到十八伏特，工作电流变化相对较小。
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10.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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