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公开(公告)号：US08002645B2
公开(公告)日：2011-08-23
申请号：US11264177
申请日：2005-10-31
申请人： Chris Savarese , Lauro C. Cadorniga , Forrest F. Fulton , Noel H. C. Marshall , John Glissman , Kenneth P. Gilliland , Marvin L. Vickers , Susan McGill , Mark A. Shea , James C. Scheller, Jr.
发明人： Chris Savarese , Lauro C. Cadorniga , Forrest F. Fulton , Noel H. C. Marshall , John Glissman , Kenneth P. Gilliland , Marvin L. Vickers , Susan McGill , Mark A. Shea , James C. Scheller, Jr.
CPC分类号： A63B43/00 , A63B24/0021 , A63B37/0003 , A63B37/0055 , A63B37/0064 , A63B37/0088 , A63B2024/0053 , A63B2225/50
摘要： Golf ball locators and components of such locators and methods of operating such locators and processing signals within such locators. In one aspect of the inventions described herein, an exemplary method of initializing a golf ball locator includes receiving received RF signals while also transmitting signals used to locate balls and determining a parameter representative of received signal strength of the received RF signals and setting a threshold to determine when subsequent received signals are to cause an indication of golf ball detection. In another aspect of this disclosure, the golf ball locator is a handheld unit having a volume of less than about 150 inches cubed and includes a transmitter, a transmit antenna, a receiver, a receive antenna and a processor coupled to the transmitter and to the receiver, and the handheld unit achieves a signal isolation, between a second harmonic of a transmitted signal from the transmitter and the receiver's received signal, of greater than about 130 to 160 dB. Other aspects are also described.
摘要翻译： 这些定位器的高尔夫球定位器和部件以及操作这些定位器的方法以及在这些定位器内的处理信号。 在本文所描述的本发明的一个方面，初始化高尔夫球定位器的示例性方法包括接收接收的RF信号，同时还发送用于定位球的信号，并且确定代表接收的RF信号的接收信号强度的参数，并将阈值设置为 确定随后的接收信号何时引起高尔夫球检测的指示。 在本公开的另一方面，高尔夫球定位器是具有小于约150英寸立方体的体积的手持单元，并且包括发射器，发射天线，接收器，接收天线和耦合到发射器的处理器 接收器，并且手持单元在来自发射器的发射信号和接收机的接收信号的二次谐波之间实现大于约130至160dB的信号隔离。 还描述了其他方面。
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公开(公告)号：US06628699B2
公开(公告)日：2003-09-30
申请号：US08880637
申请日：1997-06-23
IPC分类号： H04B169
CPC分类号： H04B1/70752 , H04B1/708 , H04B1/7085
摘要： A receiver for use in a spread spectrum communication system includes the following components: an acquisition system configured to detect a transmitted spread spectrum signal by simultaneously correlating multiple search phases of a reference spreading signal against an output from a receiver channel; a demodulation system configured to recover data embedded in the spread spectrum signal by simultaneously correlating the spread spectrum signal with multiple possible data phases of the reference spreading signal over consecutive data periods; and a bank of correlating devices configured for use both in the acquisition system and in the demodulation system.
摘要翻译： 用于扩展频谱通信系统的接收机包括以下部件：被配置为通过将参考扩展信号的多个搜索相位与来自接收机信道的输出同时相关联来检测所发送的扩频信号的采集系统; 解调系统，被配置为通过在扩展频谱信号与连续数据周期的参考扩展信号的多个可能的数据相位同时关联来恢复嵌入在扩频信号中的数据; 以及配置为在采集系统和解调系统中使用的一组相关设备。
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公开(公告)号：US20090314423A1
公开(公告)日：2009-12-24
申请号：US12552162
申请日：2009-09-01
申请人： Chris Savarese , Noel H.C. Marshall , Forrest F. Fulton , Mark A. Shea , Lauro C. Cadorniga , Susan McGill , Gerald Latus , Molly Latus
发明人： Chris Savarese , Noel H.C. Marshall , Forrest F. Fulton , Mark A. Shea , Lauro C. Cadorniga , Susan McGill , Gerald Latus , Molly Latus
CPC分类号： A63B24/0021 , A63B37/0003 , A63B37/0051 , A63B43/00 , A63B43/004 , A63B2024/0053 , A63B2225/50 , G01S13/04 , G01S13/75 , G06K19/07758 , H01Q1/22 , H01Q1/2225 , H01Q1/40 , H05K1/092 , H05K1/16 , H05K2201/10098 , Y10T29/49018
摘要： Golf balls for use with a system for finding golf balls and methods for making such golf balls. In the case of one exemplary golf ball, the ball includes a shell, a core material and a tag having a diode which is coupled to an antenna which has at least a portion formed from an elastic conductive material, such as an elastic conductive ink. The core material may include a void for receiving at least part of the diode. Other golf balls are described and methods for making balls are also described.
摘要翻译： 用于找到高尔夫球的系统的高尔夫球和用于制造这种高尔夫球的方法。 在一个示例性的高尔夫球的情况下，球包括壳体，芯材料和具有二极管的标签，该二极管耦合到天线，该天线至少由弹性导电材料形成，例如弹性导电油墨。 芯材料可以包括用于接收二极管的至少一部分的空隙。 还描述了其它高尔夫球，还描述了制造球的方法。
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公开(公告)号：US06741638B2
公开(公告)日：2004-05-25
申请号：US08880470
申请日：1997-06-23
IPC分类号： H04B169
CPC分类号： H04B1/70752 , H04B1/707 , H04B1/708
摘要： A digitally sampled spread spectrum signal is received, despread, and accumulated at a center frequency lower than the sampling rate and higher than zero.
摘要翻译： 数字采样扩频信号被接收，解扩，并以低于采样率的中心频率累积并高于零。
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公开(公告)号：US5661750A
公开(公告)日：1997-08-26
申请号：US473011
申请日：1995-06-06
申请人： Forrest F. Fulton
发明人： Forrest F. Fulton
摘要： A direct-sequence spread spectrum communication system using a high power transmitter and a short spreading sequence which still satisfies FCC Rule 15.247 regarding power density. In addition to the spreading sequence, the carrier signal is modulated with a phase reversal sequence. Typically, each period of the phase reversal sequence has a duration equal to the total duration of the spreading sequence. The phase reversal sequence reduces the maximum power density of the signal, but is transparent to a receiver.
摘要翻译： 一种使用高功率发射机和短扩频序列的直接序列扩频通信系统，其仍然符合FCC规则15.247关于功率密度。 除了扩展序列之外，载波信号用相位反转序列调制。 通常，相位反转序列的每个周期的持续时间等于扩展序列的总持续时间。 相位反转序列降低了信号的最大功率密度，但对接收机是透明的。
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公开(公告)号：US5377232A
公开(公告)日：1994-12-27
申请号：US818693
申请日：1992-01-09
IPC分类号： H04B1/40 , H04B1/56 , H04B7/26 , H04J1/06 , H04J3/06 , H04L7/033 , H04L25/06 , H04L27/00 , H04L27/233 , H04L27/38 , H04L7/00
CPC分类号： H04W56/0035 , H04B1/56 , H04B7/2675 , H04J1/065 , H04L25/061 , H04L27/2332 , H04L27/3854 , H04B1/408 , H04L2027/0028 , H04L2027/0057 , H04L7/033
摘要： A bidirectional radio system for low cost, high through-put accumulation of data from a large number of site units. The site units are connected to remote radio transceivers in radio communication with a plurality of base stations. Accurate frequency synchronization allows multiple carriers within a 12.5 kHz FCC bandwidth. Frequency synchronization is achieved at low cost by transmitting a high accuracy carrier and clock signal at a base station, and using receiving circuitry a remote stations to extract the base clock signal and base carrier frequency and a phase-lock loop to stabilize the remote station carriers. The reception circuitry at a remote station provides independent carrier frequency and clock rate recovery, a phase-lock loop at baseband, and a coarse clock rate recovery circuit coupled to a fine clock rate recovery circuit. Remote station responses are time domain multiplexed. A base station receiver can decode a very short remote station response by scaling the response with the phase and amplitude of an initial segment of the response. Spatial reuse of carrier frequencies further increases the rate of data through-put.
摘要翻译： 一种双向无线电系统，用于从大量现场单元的低成本，高通量累积数据。 站点单元连接到与多个基站进行无线电通信的远程无线电收发机。 精确的频率同步允许12.5 kHz FCC带宽内的多个载波。 通过在基站发送高精度载波和时钟信号，并且使用接收电路，远程站提取基本时钟信号和基本载波频率以及锁相环路以稳定远程站载波，以低成本实现频率同步 。 远程站的接收电路提供独立的载波频率和时钟速率恢复，基带上的锁相环以及耦合到精细时钟速率恢复电路的粗略时钟速率恢复电路。 远程站响应是时域多路复用的。 基站接收机可以通过响应的初始段的相位和幅度缩放响应来解码非常短的远程站响应。 载波频率的空间重用进一步提高了数据吞吐率。
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公开(公告)号：US06456644B1
公开(公告)日：2002-09-24
申请号：US08880578
申请日：1997-06-23
IPC分类号： H04L2730
CPC分类号： H04B1/70752 , H04B1/70757 , H04B1/708
摘要： A spread spectrum signal is processed after it is sampled at a selected sampling rate and tuned to a center frequency lower than the sampling rate and greater than zero. The signal is multiplied against a reference signal to produce a corresponding product output, and an accumulation output is formed by combining the product output with a phase-shifted version of the accumulation output.
摘要翻译： 在以选定的采样率对其进行采样并调谐到低于采样率的中心频率并大于零时，对其进行处理。 信号与参考信号相乘以产生相应的乘积输出，并且通过将积积输出与累积输出的相移版本组合来形成累加输出。
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公开(公告)号：US06263009B1
公开(公告)日：2001-07-17
申请号：US08881549
申请日：1997-06-23
IPC分类号： H04L2730
CPC分类号： H04B1/70752 , H04B1/707 , H04B1/708
摘要： A spread spectrum signal is detected at an unknown spreading signal phase by sampling the signal at a selected sampling rate and performing a despreading function on the sampled signal using multiple reference signals, each of which represents one of multiple search phases of the spreading signal. Accumulation outputs then are produced by combining each despreading output with a phase-shifted version of the corresponding accumulation output.
摘要翻译： 通过以选定的采样率对信号进行采样来检测扩频信号，并使用多个参考信号对采样信号执行解扩功能，每个参考信号表示扩频信号的多个搜索相位之一。 然后通过将每个去扩展输出与相应的累加输出的相移版本组合来产生累加输出。
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公开(公告)号：US06047016A
公开(公告)日：2000-04-04
申请号：US880634
申请日：1997-06-23
IPC分类号： H04B1/707 , H04B1/7075 , H04B1/708 , H04B1/69
CPC分类号： H04B1/70752 , H04B1/707 , H04B1/708
摘要： A spread spectrum signal sampled at a selected sampling rate is despread and accumulated in an accumulation element at a center frequency lower than the sampling rate and higher than zero. A frequency adjustment element may be used to adjust the accumulation element to have a resonant frequency approximately equal to the center frequency.
摘要翻译： 以选择的采样率采样的扩频信号在低于采样率的中心频率并且高于零的情况下被累积在累积元件中。 可以使用频率调节元件来调整累积元件以使谐振频率近似等于中心频率。
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公开(公告)号：US5604768A
公开(公告)日：1997-02-18
申请号：US361799
申请日：1994-12-21
申请人： Forrest F. Fulton
发明人： Forrest F. Fulton
IPC分类号： H04B1/40 , H04B1/56 , H04B7/26 , H04J1/06 , H04J3/06 , H04L7/033 , H04L25/03 , H04L25/06 , H04L27/00 , H04L27/22 , H04L27/233 , H04L27/38 , H04B1/38 , H04L5/16
CPC分类号： H04L27/3854 , H04B1/56 , H04B7/2675 , H04J1/065 , H04L25/061 , H04L27/2332 , H04W56/0035 , H04B1/408 , H04L2027/0028 , H04L2027/0057
摘要： A bidirectional radio system for low-cost high-throughput accumulation of data from a large number of site units. Frequency synchronization is achieved at low cost by transmitting a high accuracy carrier and clock signal at a base station, and using receiving circuitry at remote stations to extract the base clock signal and base carrier frequency and a phase-lock loop to stabilize the remote station carriers. A burst demodulator at a base station receiver can decode a short remote station response by scaling the response with the phase and amplitude of an initial segment of the response. The burst demodulator may continuously update the decoding threshold based on a comparison of the signal amplitude and the current value of the decoding threshold. In an alternate embodiment, the carrier synthesizer is not part of a phase-lock loop, but the transmitted signal is rotated by a phase proportional to a frequency error to provide an accurate carrier frequency. In yet another alternate embodiment only a frequency-control loop is implemented, and again the transmitted signal is rotated by a phase ramp proportional to a frequency error to provide an accurate carrier frequency. In this embodiment separate rotators may be used on both the transmission and reception sides of the circuit, or a single rotator may be switched between the transmission and reception sides of the circuit for half-duplex operation.
摘要翻译： 一种双向无线电系统，用于从大量站点单元的低成本高吞吐量积累数据。 通过在基站发送高精度载波和时钟信号，并且使用远端站处的接收电路来提取基本时钟信号和基本载波频率以及锁相环路以稳定远程站载波，以低成本实现频率同步 。 在基站接收机处的突发解调器可以通过响应的初始段的相位和幅度缩放响应来解码短的远程站响应。 突发解调器可以基于信号幅度和解码阈值的当前值的比较来连续更新解码阈值。 在替代实施例中，载波合成器不是锁相环路的一部分，而是传输的信号被旋转与频率误差成比例的相位，以提供精确的载波频率。 在又一替代实施例中，仅实现频率控制环路，并且再次将发射的信号旋转与频率误差成比例的相位斜坡以提供精确的载波频率。 在该实施例中，可以在电路的发送侧和接收侧上使用单独的旋转器，或者可以在用于半双工操作的电路的发送侧和接收侧之间切换单个旋转器。
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