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1. 发明授权

US08031053B2 RFID label time synchronization 失效
标题翻译： RFID标签时间同步
公开(公告)号：US08031053B2
公开(公告)日：2011-10-04
申请号：US11924799
申请日：2007-10-26
申请人： Roy Edgar Greeff
发明人： Roy Edgar Greeff
IPC分类号： H04Q5/22
CPC分类号： G01K1/024 , G06K19/0723 , H04Q9/00 , H04Q2209/47 , H04Q2209/75
摘要： Methods and apparatus, including computer program products, for radio frequency identification (RFID) label time synchronization. A method includes, in a radio frequency identification (RFID) interrogator having an antenna, transceiver, a clock, a memory and a central processing unit (CPU), initializing a RFID tag with a label start time and a time to record data, the label start time representing an actual start time indicated by the clock, receiving a label stop time, a label time and logged data from an interrogation of the RFID tag, and compensating the label time for a drift between the label stop time and an actual stop time.
摘要翻译：方法和设备，包括计算机程序产品，用于射频识别（RFID）标签时间同步。一种方法包括在具有天线，收发器，时钟，存储器和中央处理单元（CPU）的射频识别（RFID）询问器中，初始化具有标签开始时间和记录数据的时间的RFID标签，标签开始时间，表示由时钟指示的实际开始时间，从RFID标签的询问接收标签停止时间，标签时间和记录数据，以及补偿标签停止时间与实际停止之间漂移的标签时间时间。

2. 发明申请

US20110133897A1 RFID Device Time Synchronization From A Public Source 失效
标题翻译： RFID设备时间同步来自公共源
公开(公告)号：US20110133897A1
公开(公告)日：2011-06-09
申请号：US13026826
申请日：2011-02-14
申请人： Roy Edgar Greeff , Freddie W. Smith , David K. Ovard
发明人： Roy Edgar Greeff , Freddie W. Smith , David K. Ovard
IPC分类号： H04Q5/22
CPC分类号： G01D9/005 , G06K19/0716 , G06K19/07749
摘要： A radio frequency identification (RFID) device includes an antenna linked to a receiving circuit, the antenna tuned to receive a radio frequency (RF) time-code signal from a public source, a controller circuit and an internal clock linked to the receiving circuit, a microcontroller linked to the receiving circuit, a memory linked to the microcontroller, and a battery linked to and powering the receiving circuit, controller circuit, internal clock, microcontroller and memory.
摘要翻译：射频识别（RFID）设备包括链接到接收电路的天线，被调谐以从公共源接收射频（RF）时间码信号的天线，控制器电路和连接到接收电路的内部时钟，连接到接收电路的微控制器，连接到微控制器的存储器以及链接到接收电路，控制器电路，内部时钟，微控制器和存储器的电池的电池。

3. 发明申请

US20090128292A1 RFID DEVICE TIME SYNCHRONIZATION FROM A PUBLIC SOURCE 有权
标题翻译：来自公共源的RFID设备时间同步
公开(公告)号：US20090128292A1
公开(公告)日：2009-05-21
申请号：US11942353
申请日：2007-11-19
申请人： Roy Edgar Greeff , Freddie W. Smith , David K. Ovard
发明人： Roy Edgar Greeff , Freddie W. Smith , David K. Ovard
IPC分类号： H04Q5/22
CPC分类号： G01D9/005 , G06K19/0716 , G06K19/07749
摘要： A radio frequency identification (RFID) device includes an antenna linked to a receiving circuit, the antenna tuned to receive a radio frequency (RF) time-code signal from a public source, a controller circuit and an internal clock linked to the receiving circuit, a microcontroller linked to the receiving circuit, a memory linked to the microcontroller, and a battery linked to and powering the receiving circuit, controller circuit, internal clock, microcontroller and memory.
摘要翻译：射频识别（RFID）设备包括链接到接收电路的天线，被调谐以从公共源接收射频（RF）时间码信号的天线，控制器电路和连接到接收电路的内部时钟，连接到接收电路的微控制器，连接到微控制器的存储器以及链接到接收电路，控制器电路，内部时钟，微控制器和存储器的电池的电池。

4. 发明申请

US20090109041A1 RFID LABEL TIME SYNCHRONIZATION 失效
标题翻译： RFID标签时间同步
公开(公告)号：US20090109041A1
公开(公告)日：2009-04-30
申请号：US11924799
申请日：2007-10-26
申请人： Roy Edgar Greeff
发明人： Roy Edgar Greeff
IPC分类号： G01W1/00
CPC分类号： G01K1/024 , G06K19/0723 , H04Q9/00 , H04Q2209/47 , H04Q2209/75
摘要： Methods and apparatus, including computer program products, for radio frequency identification (RFID) label time synchronization. A method includes, in a radio frequency identification (RFID) interrogator having an antenna, transceiver, a clock, a memory and a central processing unit (CPU), initializing a RFID tag with a label start time and a time to record data, the label start time representing an actual start time indicated by the clock, receiving a label stop time, a label time and logged data from an interrogation of the RFID tag, and compensating the label time for a drift between the label stop time and an actual stop time.
摘要翻译：方法和设备，包括计算机程序产品，用于射频识别（RFID）标签时间同步。一种方法包括在具有天线，收发器，时钟，存储器和中央处理单元（CPU）的射频识别（RFID）询问器中，初始化具有标签开始时间和记录数据的时间的RFID标签，标签开始时间，表示由时钟指示的实际开始时间，从RFID标签的询问接收标签停止时间，标签时间和记录数据，以及补偿标签停止时间与实际停止之间漂移的标签时间时间。

5. 发明授权

US07889083B2 RFID device time synchronization from a public source 有权
标题翻译： RFID设备从公共源的时间同步
公开(公告)号：US07889083B2
公开(公告)日：2011-02-15
申请号：US11942353
申请日：2007-11-19
申请人： Roy Edgar Greeff , Freddie W. Smith , David K. Ovard
发明人： Roy Edgar Greeff , Freddie W. Smith , David K. Ovard
IPC分类号： G08B13/14
CPC分类号： G01D9/005 , G06K19/0716 , G06K19/07749
摘要： A radio frequency identification (RFID) device includes an antenna linked to a receiving circuit, the antenna tuned to receive a radio frequency (RF) time-code signal from a public source, a controller circuit and an internal clock linked to the receiving circuit, a microcontroller linked to the receiving circuit, a memory linked to the microcontroller, and a battery linked to and powering the receiving circuit, controller circuit, internal clock, microcontroller and memory.
摘要翻译：射频识别（RFID）设备包括链接到接收电路的天线，被调谐以从公共源接收射频（RF）时间码信号的天线，控制器电路和连接到接收电路的内部时钟，连接到接收电路的微控制器，连接到微控制器的存储器以及链接到接收电路，控制器电路，内部时钟，微控制器和存储器的电池的电池。

6. 发明申请

US20090284377A1 Flexible RFID Label 审中-公开
标题翻译：灵活的RFID标签
公开(公告)号：US20090284377A1
公开(公告)日：2009-11-19
申请号：US12121357
申请日：2008-05-15
申请人： Mark E. Tuttle , Roy Edgar Greeff , Freddie W. Smith
发明人： Mark E. Tuttle , Roy Edgar Greeff , Freddie W. Smith
IPC分类号： G08B13/14
CPC分类号： H01Q1/2216 , G06K19/07749 , G06K19/07767 , H01Q1/20 , H01Q21/28
摘要： A radio frequency identification (RFID) tag includes a base supporting an integrated circuit and a first antenna orthogonal to a second antenna, the first antenna and the second antenna coupled to the integrated circuit, and a first fold in the base that when creased, defines two lobes lying in two planes, a first lobe including a first portion of the first antenna positioned in an x-axis relative to the second antenna oriented along a y-axis, and a second lobe including a second portion of the first antenna positioned in a z-axis relative to the first portion of the first antenna and second antenna.
摘要翻译：射频识别（RFID）标签包括支撑集成电路的基座和与第二天线正交的第一天线，耦合到集成电路的第一天线和第二天线以及基座中的第一折叠，当折痕时限定位于两个平面中的两个叶片，包括第一天线的第一部分的第一叶片，所述第一天线相对于沿着y轴定位的第二天线位于x轴上，以及第二叶瓣，其包括位于所述第一天线中的第二部分相对于第一天线和第二天线的第一部分的z轴。

7. 发明授权

US5719908A Digital/analog bit synchronizer 失效
标题翻译：数字/模拟位同步器
公开(公告)号：US5719908A
公开(公告)日：1998-02-17
申请号：US503953
申请日：1995-07-19
申请人： Roy Edgar Greeff , Glenn Arthur Arbanas , Bruce Howard Williams
发明人： Roy Edgar Greeff , Glenn Arthur Arbanas , Bruce Howard Williams
IPC分类号： H03D13/00 , H03L7/085 , H03L7/095 , H03L7/12 , H04L7/033 , H03D3/24
CPC分类号： H03D13/004 , H03L7/085 , H03L7/095 , H03L7/12 , H04L7/033
摘要： A high speed bit synchronizer is provided with a digital phase detector and a digital offset eliminating circuit. The output of the digital offset eliminating circuit is summed together with the output of the digital phase detector to compensate for the DC offset voltage generated by unsymmetrical digital data received at the input of the phase detector. Further, the phase error offset voltage produced at the output of the digital phase detector is linearized so that the lock point of the phase S-curve located on a linearized portion of a phase offset S-curve, thus, substantially eliminating all seeking and jitter that normally occurs at the lock point.
摘要翻译：高速位同步器具有数字相位检测器和数字偏移消除电路。数字失调消除电路的输出与数字相位检测器的输出相加，以补偿在相位检测器的输入端处接收的不对称数字数据产生的DC偏移电压。此外，在数字相位检测器的输出处产生的相位误差偏移电压被线性化，使得位于相位偏移S-曲线的线性化部分上的相位S曲线的锁定点基本上消除了所有寻找和抖动通常发生在锁定点。

8. 发明授权

US5696795A Offset quadrature phase shift keyed modulation circuit 失效
标题翻译：偏移正交相移键控调制电路
公开(公告)号：US5696795A
公开(公告)日：1997-12-09
申请号：US503954
申请日：1995-07-19
申请人： Bruce Howard Williams , Roy Edgar Greeff , Glenn Arthur Arbanas
发明人： Bruce Howard Williams , Roy Edgar Greeff , Glenn Arthur Arbanas
IPC分类号： H04L27/20
CPC分类号： H04L27/2092
摘要： An improved quadrature phase shift key modulator circuit of the type which includes a non-linear amplifier in the transmitter and includes a frequency select logic circuit for receiving the in phase and quadrature phase digital data to be modulated onto a carrier frequency signal. The output of the frequency select circuit produces select signals that are coupled to the input of a digital carrier frequency generator. The digital carrier frequency generator synthesizes and increases, decreases, or leaves unchanged the carrier frequency as a representation of the data occurring on the in phase and quadrature phase input lines. The output of the digital carrier frequency generator is smoothed and converted to an analog signal which has a constant vector power magnitude during phase change. The constant vector power when amplified in a non-linear amplifier of the transmitter is not susceptible to regeneration of side lobes of the carrier signal, thus, provides a more narrow bandwidth modulated carrier frequency signal.
摘要翻译：一种改进的正交相移键调制器电路，其类型包括发射机中的非线性放大器，并且包括用于接收待调制到载波频率信号上的同相和正交相位数字数据的频率选择逻辑电路。频率选择电路的输出产生耦合到数字载波频率发生器的输入端的选择信号。数字载波频率发生器合成并增加，减少或保持载波频率不变，作为在同相和正交相位输入线上发生的数据的表示。数字载波频率发生器的输出被平滑化并转换成在相变期间具有恒定矢量功率幅度的模拟信号。在发射机的非线性放大器中放大的恒定矢量功率不容易对载波信号的旁瓣的再生，因此提供更窄的带宽调制载波频率信号。

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