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1. 发明授权

US5982237A Digital clock recovery loop 失效
标题翻译：数字时钟恢复回路
公开(公告)号：US5982237A
公开(公告)日：1999-11-09
申请号：US5090
申请日：1998-01-09
申请人： George E. Pax , James E. O'Toole , Dan M. Griffin
发明人： George E. Pax , James E. O'Toole , Dan M. Griffin
IPC分类号： H03L7/089 , H03L7/113 , H04B1/707 , H04L7/033 , H03L1/00 , H03L7/18
CPC分类号： H03L7/113 , H03L7/0895 , H03L7/0896 , H04L7/033 , H04B1/707
摘要： A communications system including a clock recovery circuit that extracts a clock signal from incoming digital data, the clock recovery circuit comprising:a voltage controlled oscillator having a control node and having an output producing an output wave having a frequency that varies in response to a voltage applied to the control node; charge pump and loop filter circuitry that controls the rate of change of the voltage on the control node of the voltage controlled oscillator; a start-up circuit that performs frequency detection and, in conjunction with the charge pump and loop filter circuitry, adjusts the voltage on the control node of the voltage controlled oscillator; and a state machine that performs phase detection and adjusts the voltage on the control node of the voltage controlled oscillator.
摘要翻译：一种通信系统，包括从输入的数字数据中提取时钟信号的时钟恢复电路，所述时钟恢复电路包括：具有控制节点并具有产生具有响应于电压而变化的频率的输出波的输出的压控振荡器应用于控制节点; 电荷泵和环路滤波器电路，用于控制压控振荡器的控制节点上的电压变化率; 启动电路，执行频率检测，并结合电荷泵和环路滤波器电路调节压控振荡器的控制节点上的电压; 以及执行相位检测并调节压控振荡器的控制节点上的电压的状态机。

2. 发明授权

US06285261B1 Digital clock recovery loop 有权
标题翻译：数字时钟恢复回路
公开(公告)号：US06285261B1
公开(公告)日：2001-09-04
申请号：US09610177
申请日：2000-07-05
申请人： George E. Pax , James E. O'Toole , Dan M. Griffin
发明人： George E. Pax , James E. O'Toole , Dan M. Griffin
IPC分类号： H03L100
CPC分类号： H03L7/0895 , H03L7/0896 , H03L7/113 , H04B1/707 , H04L7/033
摘要： A method of using a phase lock loop to receive an oscillating input signal and produce an output signal, the phase lock loop comprising a plurality of flip-flops which are chained together, the plurality of flip-flops including a first flip-flop having a first output, including a second flip-flop having an input coupled to the first output and having a second output, and including a third flip-flop having an input coupled to the second output, the phase lock loop further comprising a control node, the method including using the flip-flops to determine time spacing between transitions to perform a frequency comparison of the output signal relative to the input signal; extracting a clock from an input digital signal; and performing phase control and adjusting the voltage on the control node of the voltage controlled oscillator.
摘要翻译：一种使用锁相环接收振荡输入信号并产生输出信号的方法，所述锁相环包括链接在一起的多个触发器，所述多个触发器包括具有第一触发器的第一触发器，第一输出，包括具有耦合到第一输出并具有第二输出的输入的第二触发器，并且包括具有耦合到第二输出的输入的第三触发器，所述锁相环还包括控制节点，方法，包括使用触发器来确定转变之间的时间间隔以执行输出信号相对于输入信号的频率比较; 从输入数字信号中提取时钟; 并执行相位控制和调节压控振荡器的控制节点上的电压。

3. 发明授权

US5774022A Digital clock recovery loop 失效
标题翻译：数字时钟恢复回路
公开(公告)号：US5774022A
公开(公告)日：1998-06-30
申请号：US707220
申请日：1996-08-29
申请人： Dan M. Griffin , George E. Pax , James E. O'Toole
发明人： Dan M. Griffin , George E. Pax , James E. O'Toole
IPC分类号： H03L7/089 , H03L7/113 , H04B1/707 , H04L7/033 , H03L7/10
CPC分类号： H03L7/113 , H03L7/0895 , H03L7/0896 , H04L7/033 , H04B1/707
摘要： A communications system including a clock recovery circuit that extracts a clock signal from incoming digital data, the clock recovery circuit including a voltage controlled oscillator having a control node and having an output producing an output wave having a frequency that varies in response to a voltage applied to the control node; charge pump and loop filter circuitry that controls the rate of change of the voltage on the control node of the voltage controlled oscillator; a start-up circuit that performs frequency detection and, in conjunction with the charge pump and loop filter circuitry, adjusts the voltage on the control node of the voltage controlled oscillator; and a state machine that performs phase detection and adjusts the voltage on the control node of the voltage controlled oscillator.
摘要翻译：一种通信系统，包括从输入数字数据中提取时钟信号的时钟恢复电路，所述时钟恢复电路包括具有控制节点的压控振荡器，并具有产生具有响应于施加的电压而变化的频率的输出波的输出到控制节点; 电荷泵和环路滤波器电路，用于控制压控振荡器的控制节点上的电压变化率; 启动电路，执行频率检测，并结合电荷泵和环路滤波器电路调节压控振荡器的控制节点上的电压; 以及执行相位检测并调节压控振荡器的控制节点上的电压的状态机。

4. 发明授权

US07079043B2 Radio frequency data communications device 失效
公开(公告)号：US07079043B2
公开(公告)日：2006-07-18
申请号：US10626876
申请日：2003-07-24
申请人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler E. Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , Shu-Sun Yu , David K. Ovard , Robert R. Rotzoll
发明人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler E. Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , Shu-Sun Yu , David K. Ovard , Robert R. Rotzoll
IPC分类号： H04Q7/00
CPC分类号： G06K19/0716 , G06K7/0008 , G06K7/10059 , G06K19/0707 , G06K19/0712 , G06K19/0723 , G06K19/0726 , G06K19/07749 , G06K19/07758 , G06K2017/0051 , H01Q1/2225 , H03L7/0995 , H03L7/148
摘要： A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.

5. 发明授权

US06825773B1 Radio frequency data communications device 失效
公开(公告)号：US06825773B1
公开(公告)日：2004-11-30
申请号：US09152024
申请日：1998-09-11
申请人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , David K. Ovard , Robert R. Rotzoll , Shu-Sun Yu
发明人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , David K. Ovard , Robert R. Rotzoll , Shu-Sun Yu
IPC分类号： H04Q100
CPC分类号： G06K19/0716 , G06K7/0008 , G06K7/10059 , G06K19/0707 , G06K19/0712 , G06K19/0723 , G06K19/0726 , G06K19/07749 , G06K19/07758 , G06K2017/0051 , H01Q1/2225 , H03L7/0995 , H03L7/148
摘要： A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.

6. 发明授权

US06466634B1 Radio frequency data communications device 有权
公开(公告)号：US06466634B1
公开(公告)日：2002-10-15
申请号：US09161512
申请日：1998-09-28
申请人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , David K. Ovard , Shu-Sun Yu , Robert R. Rotzoll
发明人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , David K. Ovard , Shu-Sun Yu , Robert R. Rotzoll
IPC分类号： H03D324
CPC分类号： G06K19/0716 , G06K7/0008 , G06K7/10059 , G06K19/0707 , G06K19/0712 , G06K19/0723 , G06K19/0726 , G06K19/07749 , G06K19/07758 , G06K2017/0051 , H01Q1/2225 , H03L7/0995 , H03L7/148
摘要： A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.

7. 发明授权

US06314440B1 Pseudo random number generator 有权
标题翻译：伪随机数发生器，伪随机数生成方法，以及包括反馈移位寄存器的系统和射频识别装置
公开(公告)号：US06314440B1
公开(公告)日：2001-11-06
申请号：US09158529
申请日：1998-09-22
申请人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , David K. Ovard , Shu-Sun Yu , Robert R. Rotzoll
发明人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , David K. Ovard , Shu-Sun Yu , Robert R. Rotzoll
IPC分类号： G06F102
CPC分类号： G06K19/0716 , G06K7/0008 , G06K7/10059 , G06K19/0707 , G06K19/0712 , G06K19/0723 , G06K19/0726 , G06K19/07749 , G06K19/07758 , G06K2017/0051 , H01Q1/2225 , H03L7/0995 , H03L7/148
摘要： A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.
摘要翻译：射频识别装置包括包括接收器，发射器和微处理器的集成电路。接收机和发射机一起定义了一个有效的应答器。集成电路优选地是包括接收器，发射器和微处理器的单片单片集成电路。由于该设备包括有源应答器，而不是依赖于磁耦合功率的转发器，该器件具有更大的范围。

8. 发明授权

US6130602A Radio frequency data communications device 失效
公开(公告)号：US6130602A
公开(公告)日：2000-10-10
申请号：US705043
申请日：1996-08-29
申请人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , David K. Ovard , Shu-Sun Yu , Robert R. Rotzoll
发明人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , David K. Ovard , Shu-Sun Yu , Robert R. Rotzoll
IPC分类号： B42D15/10 , G01S13/74 , G06K7/00 , G06K17/00 , G06K19/07 , G06K19/077 , G08B13/22 , H01L21/822 , H01L27/04 , H03L7/099 , H03L7/14 , H04B1/59 , H04Q7/00
CPC分类号： G06K19/0716 , G06K19/0707 , G06K19/0712 , G06K19/0723 , G06K19/0726 , G06K19/07749 , G06K19/07758 , G06K7/0008 , G06K7/10059 , H01Q1/2225 , H03L7/0995 , H03L7/148 , G06K2017/0051
摘要： A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.

9. 发明申请

US20080211636A1 Radio frequency data communications device 有权
标题翻译：射频数据通信设备
公开(公告)号：US20080211636A1
公开(公告)日：2008-09-04
申请号：US11977232
申请日：2007-10-25
申请人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler A. Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , David K. Ovard , Shu-Sun Yu , Robert R. Rotzoll
发明人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler A. Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , David K. Ovard , Shu-Sun Yu , Robert R. Rotzoll
IPC分类号： H04Q5/22
CPC分类号： G06K19/0716 , G06K7/0008 , G06K7/10059 , G06K19/0707 , G06K19/0712 , G06K19/0723 , G06K19/0726 , G06K19/07749 , G06K19/07758 , G06K2017/0051 , H01Q1/2225 , H03L7/0995 , H03L7/148
摘要： A radio frequency identification device includes an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.
摘要翻译：射频识别装置包括包括接收器，发射器和微处理器的集成电路。接收机和发射机一起定义了一个有效的应答器。集成电路优选地是包括接收器，发射器和微处理器的单片单片集成电路。由于该设备包括有源应答器，而不是依赖于磁耦合功率的转发器，该器件具有更大的范围。

10. 发明授权

US06836472B2 Radio frequency data communications device 失效
公开(公告)号：US06836472B2
公开(公告)日：2004-12-28
申请号：US10132917
申请日：2002-04-26
申请人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler E. Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , Shu-Sun Yu , David K. Ovard , Robert R. Rotzoll
发明人： James E. O'Toole , John R. Tuttle , Mark E. Tuttle , Tyler E. Lowrey , Kevin M. Devereaux , George E. Pax , Brian P. Higgins , Shu-Sun Yu , David K. Ovard , Robert R. Rotzoll
IPC分类号： G06F102
CPC分类号： G06K19/0716 , G06K7/0008 , G06K7/10059 , G06K19/0707 , G06K19/0712 , G06K19/0723 , G06K19/0726 , G06K19/07749 , G06K19/07758 , G06K2017/0051 , H01Q1/2225 , H03L7/0995 , H03L7/148
摘要： A radio frequency identification device comprises an integrated circuit including a receiver, a transmitter, and a microprocessor. The receiver and transmitter together define an active transponder. The integrated circuit is preferably a monolithic single die integrated circuit including the receiver, the transmitter, and the microprocessor. Because the device includes an active transponder, instead of a transponder which relies on magnetic coupling for power, the device has a much greater range.

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