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1.发明授权Pulse transmission receiver with higher-order time derivative pulse correlator 失效具有高阶时间导数脉冲相关器的脉冲发射接收机公开(公告)号：US06621878B2
公开(公告)日：2003-09-16
申请号：US10082569
申请日：2002-02-25
IPC分类号： H03K900
CPC分类号： H04L25/49 , H04B1/71637 , H04B1/7172 , H04B1/7174 , H04B1/719 , H04L25/03834
摘要： Systems and methods for pulse-transmission low-power communication modes are disclosed. A pulse transmission receiver includes: a higher-order time derivative pulse correlator; a demodulation decoder coupled to the higher-order time derivative pulse correlator; a clock coupled to the demodulation decoder; and a pseudorandom polynomial generator coupled to both the higher-order time derivative pulse correlator and the clock. The systems and methods significantly reduce lower-frequency emissions from pulse transmission spread-spectrum communication modes, which reduces potentially harmful interference to existing radio frequency services and users and also simultaneously permit transmission of multiple data bits by utilizing specific pulse shapes.
摘要翻译： 公开了用于脉冲传输低功率通信模式的系统和方法。 脉冲发送接收机包括：高阶时间微分脉冲相关器; 耦合到高阶时间导数脉冲相关器的解调解码器; 耦合到解调解码器的时钟; 以及耦合到高阶时间导数脉冲相关器和时钟的伪随机多项式发生器。 这些系统和方法显着降低了脉冲传输扩频通信模式的低频发射，从而减少了对现有射频业务和用户的潜在有害干扰，并且同时允许利用特定的脉冲形状传输多个数据位。
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公开(公告)号：US07092440B1
公开(公告)日：2006-08-15
申请号：US09671636
申请日：2000-09-27
IPC分类号： H03K7/04
CPC分类号： H04J13/0022 , H04B1/692 , H04L5/026
摘要： Methods, systems and devices are described for a direct-sequence spread-spectrum communication scheme that increases the number of users by utilizing a plurality of closely spaced orthogonal carriers that produce overlapping spectra. A method includes overlapping a plurality of direct-sequence spread-spectrum signals using carrier frequencies that are orthogonally spaced relative to a bit rate. The methods, systems and devices provide advantages because they can accommodate an increase in the number of normalized users and can optimize the loading of users across multiple frequency channels.
摘要翻译： 对直接序列扩频通信方案描述了方法，系统和设备，其通过利用产生重叠频谱的多个紧密间隔的正交载波来增加用户数量。 一种方法包括使用相对于比特率正交间隔的载波频率重叠多个直接序列扩频信号。 方法，系统和设备提供了优点，因为它们可以适应规范化用户数量的增加，并且可以优化跨多个频率信道的用户的负载。
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3.发明授权公开(公告)号：US06625229B2
公开(公告)日：2003-09-23
申请号：US10082773
申请日：2002-02-25
IPC分类号： H04L2704
CPC分类号： H04L25/49 , H04B1/71637 , H04B1/7172 , H04B1/7174 , H04B1/719 , H04L25/03834
摘要： Systems and methods for pulse-transmission low-power communication modes are disclosed. A pulse transmission transmitter includes: a clock; a pseudorandom polynomial generator coupled to the clock, the pseudorandom polynomial generator having a polynomial load input; an exclusive-OR gate coupled to the pseudorandom polynomial generator, the exclusive-OR gate having a serial data input; a programmable delay circuit coupled to both the clock and the exclusive-OR gate; a pulse generator coupled to the programmable delay circuit; and a higher order time derivative filter coupled to the pulse generator. The systems and methods significantly reduce lower-frequency emissions from pulse transmission spread-spectrum communication modes, which reduces potentially harmful interference to existing radio frequency services and users and also simultaneously permit transmission of multiple data bits by utilizing specific pulse shapes.
摘要翻译： 公开了用于脉冲传输低功率通信模式的系统和方法。 脉冲传输发射机包括：时钟; 耦合到所述时钟的伪随机多项式发生器，所述伪随机多项式发生器具有多项式负载输入; 耦合到伪随机多项式发生器的异或门，异或门具有串行数据输入; 耦合到时钟和异或门的可编程延迟电路; 耦合到所述可编程延迟电路的脉冲发生器; 以及耦合到脉冲发生器的较高阶导数滤波器。 这些系统和方法显着降低了脉冲传输扩频通信模式的低频发射，从而减少了对现有射频业务和用户的潜在有害干扰，并且同时允许利用特定的脉冲形状传输多个数据位。
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4.发明授权Pulse transmission receiver with higher-order time derivative pulse generator 失效脉冲发射接收机具有高阶时间微分脉冲发生器公开(公告)号：US06606350B2
公开(公告)日：2003-08-12
申请号：US10082568
申请日：2002-02-25
IPC分类号： H04B1702
CPC分类号： H04L25/49 , H04B1/71637 , H04B1/7172 , H04B1/7174 , H04B1/719 , H04L25/03834
摘要： Systems and methods for pulse-transmission low-power communication modes are disclosed. A pulse transmission receiver includes: a front-end amplification/processing circuit; a synchronization circuit coupled to the front-end amplification/processing circuit; a clock coupled to the synchronization circuit; a trigger signal generator coupled to the clock; and at least one higher-order time derivative pulse generator coupled to the trigger signal generator. The systems and methods significantly reduce lower-frequency emissions from pulse transmission spread-spectrum communication modes, which reduces potentially harmful interference to existing radio frequency services and users and also simultaneously permit transmission of multiple data bits by utilizing specific pulse shapes.
摘要翻译： 公开了用于脉冲传输低功率通信模式的系统和方法。 脉冲发射接收机包括：前端放大/处理电路; 耦合到前端放大/处理电路的同步电路; 耦合到同步电路的时钟; 耦合到时钟的触发信号发生器; 以及耦合到触发信号发生器的至少一个高阶时间导数脉冲发生器。 这些系统和方法显着降低了脉冲传输扩频通信模式的低频发射，从而减少了对现有射频业务和用户的潜在有害干扰，并且同时允许利用特定的脉冲形状传输多个数据位。
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公开(公告)号：US06603818B1
公开(公告)日：2003-08-05
申请号：US09404009
申请日：1999-09-23
IPC分类号： H04L2704
CPC分类号： H04L25/49 , H04B1/71637 , H04B1/7172 , H04B1/7174 , H04B1/719 , H04L25/03834
摘要： Systems and methods for pulse-transmission low-power communication modes are disclosed. A method of pulse transmission communications includes: generating a modulated pulse signal waveform; transforming said modulated pulse signal waveform into at least one higher-order derivative waveform; and transmitting said at least one higher-order derivative waveform as an emitted pulse. The systems and methods significantly reduce lower-frequency emissions from pulse transmission spread-spectrum communication modes, which reduces potentially harmful interference to existing radio frequency services and users and also simultaneously permit transmission of multiple data bits by utilizing specific pulse shapes.
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公开(公告)号：US08068984B2
公开(公告)日：2011-11-29
申请号：US11583373
申请日：2006-10-17
申请人： Stephen F. Smith , James A. Moore
发明人： Stephen F. Smith , James A. Moore
IPC分类号： G01C21/00
CPC分类号： G01C21/165 , G01S1/24 , G01S5/0263 , G01S19/46 , G01S19/47
摘要： Methods and apparatus are described for a navigation system. A method includes providing a global positioning system fix having a plurality of tracking parameters; providing a theater positioning system fix; monitoring the plurality of tracking parameters for predetermined conditions; and, when the predetermined conditions are met, sending a notifying signal and switching to the theater positioning system fix as a primary fix. An apparatus includes a system controller; a global positioning system receiver coupled to the system controller; a radio frequency locating receiver coupled to the system controller; and an operator interface coupled to the system controller.
摘要翻译： 为导航系统描述了方法和装置。 一种方法包括提供具有多个跟踪参数的全球定位系统固定; 提供剧院定位系统修复; 在预定条件下监视所述多个跟踪参数; 并且当满足预定条件时，发送通知信号并切换到剧院定位系统固定作为主要定位。 一种装置包括系统控制器; 耦合到系统控制器的全球定位系统接收器; 耦合到所述系统控制器的射频定位接收器; 以及耦合到系统控制器的操作者接口。
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公开(公告)号：US07621878B2
公开(公告)日：2009-11-24
申请号：US10374928
申请日：2003-02-24
CPC分类号： A61B5/0031 , A61B5/031 , A61B2562/028 , A61M27/006 , Y10S128/903
摘要： The present invention relates to a completely implantable intracranial pressure monitor, which can couple to existing fluid shunting systems as well as other internal monitoring probes. The implant sensor produces an analog data signal which is then converted electronically to a digital pulse by generation of a spreading code signal and then transmitted to a location outside the patient by a radio-frequency transmitter to an external receiver. The implanted device can receive power from an internal source as well as an inductive external source. Remote control of the implant is also provided by a control receiver which passes commands from an external source to the implant system logic. Alarm parameters can be programmed into the device which are capable of producing an audible or visual alarm signal. The utility of the monitor can be greatly expanded by using multiple pressure sensors simultaneously or by combining sensors of various physiological types.
摘要翻译： 本发明涉及一种完全可植入的颅内压监测器，其可以耦合到现有的流体分流系统以及其它内部监测探针。 植入物传感器产生模拟数据信号，然后通过产生扩展码信号将其电子地转换为数字脉冲，然后通过射频发射器发送到患者外部位置到外部接收器。 植入的设备可以从内部源以及感应外部源接收电力。 植入物的远程控制也由控制接收器提供，控制接收器将命令从外部源传递到植入物系统逻辑。 可以将报警参数编程到能够产生声音或视觉报警信号的设备中。 可以通过同时使用多个压力传感器或通过组合各种生理类型的传感器来大大扩展显示器的效用。
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公开(公告)号：US07315563B2
公开(公告)日：2008-01-01
申请号：US10726475
申请日：2003-12-03
申请人： Stephen F. Smith , William B. Dress
发明人： Stephen F. Smith , William B. Dress
CPC分类号： H04L5/0017 , H04J13/00 , H04J13/16
摘要： Systems and methods are described for multicarrier orthogonal spread-spectrum (MOSS) data communication. A method includes individually spread-spectrum modulating at least two of a set of orthogonal frequency division multiplexed carriers, wherein the resulting individually spread-spectrum modulated at least two of a set of orthogonal frequency division multiplexed carriers are substantially mutually orthogonal with respect to both frequency division multiplexing and spread-spectrum modulation.
摘要翻译： 描述了用于多载波正交扩频（MOSS）数据通信的系统和方法。 一种方法包括对一组正交频分复用载波中的至少两个进行单独扩频调制，其中由一组正交频分多路复用载波中的至少两个调制的单个扩频调制的频率基本上相对于两个频率 分频复用和扩频调制。
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公开(公告)号：USD533589S1
公开(公告)日：2006-12-12
申请号：US29255912
申请日：2006-03-14
申请人： Stephen F. Smith
设计人： Stephen F. Smith
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公开(公告)号：US06925135B2
公开(公告)日：2005-08-02
申请号：US10722274
申请日：2003-11-25
申请人： Stephen F. Smith , Gary W. Turner
发明人： Stephen F. Smith , Gary W. Turner
CPC分类号： H03L7/0891 , H03L7/07 , H03L7/087 , H03L7/191 , H03L7/23 , H04J3/0685
摘要： Digital-data receiver synchronization is provided with composite phase-frequency detectors, mutually cross-connected comparison feedback or both to provide robust reception of digital data signals. A single master clock can be used to provide frequency signals. Advantages can include fast lock-up time in moderately to severely noisy conditions, greater tolerance to noise and jitter when locked, and improved tolerance to clock asymmetries.
摘要翻译： 数字数据接收机同步提供有复合相位频率检测器，互相交叉比较反馈或两者，以提供数字数据信号的鲁棒接收。 单个主时钟可用于提供频率信号。 优点可以包括在中等到严重噪声条件下的快速锁定时间，锁定时更大的噪声容限和抖动，以及改善对时钟不对称性的容限。
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