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公开(公告)号：US20090239548A1
公开(公告)日：2009-09-24
申请号：US11719745
申请日：2005-11-07
申请人： Adrian G. Spencer , Said Moridi
发明人： Adrian G. Spencer , Said Moridi
CPC分类号： G01S5/0215 , G01S19/21
摘要： A wireless receiver for receiving signals from a satellite positioning system, and receiving signals from a communications system uses a common path in the receiver, and derives position information (60, 230) from the received signals by correlation (50, 210, 220) with a code. In a first mode the deriving is carried out from the received signals excluding selected signals received in time slots used for communications signals. A second mode includes such signals. This enables control of the trade off between accuracy and the latency of the positioning processor to improve the performance over a range of conditions. The mode input can be changed dynamically according to signal strength, or according to the needs of an application.
摘要翻译： 用于从卫星定位系统接收信号和从通信系统接收信号的无线接收机使用接收机中的公共路径，并通过相关（50,210,220）与所接收的信号相关（50,210,220）与 一个代码。 在第一模式中，从除了在通信信号中使用的时隙中接收到的选定信号之外的接收信号进行推导。 第二模式包括这样的信号。 这使得能够在精度和定位处理器的等待时间之间进行权衡控制，以在一定范围的条件下提高性能。 模式输入可以根据信号强度或根据应用的需要动态更改。
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公开(公告)号：US08489123B2
公开(公告)日：2013-07-16
申请号：US11719745
申请日：2005-11-07
申请人： Adrian G. Spencer , Said Moridi
发明人： Adrian G. Spencer , Said Moridi
CPC分类号： G01S5/0215 , G01S19/21
摘要： A wireless receiver for receiving signals from a satellite positioning system, and receiving signals from a communications system uses a common path in the receiver, and derives position information (60, 230) from the received signals by correlation (50, 210, 220) with a code. In a first mode the deriving is carried out from the received signals excluding selected signals received in time slots used for communications signals. A second mode includes such signals. This enables control of the trade off between accuracy and the latency of the positioning processor to improve the performance over a range of conditions. The mode input can be changed dynamically according to signal strength, or according to the needs of an application.
摘要翻译： 用于从卫星定位系统接收信号和从通信系统接收信号的无线接收机使用接收机中的公共路径，并通过相关（50,210,220）与所接收的信号相关（50,210,220）与 一个代码。 在第一模式中，从除了在通信信号中使用的时隙中接收到的选定信号之外的接收信号进行推导。 第二模式包括这样的信号。 这使得能够在精度和定位处理器的等待时间之间进行权衡控制，以在一定范围的条件下提高性能。 模式输入可以根据信号强度或根据应用的需要动态更改。
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公开(公告)号：US07151767B2
公开(公告)日：2006-12-19
申请号：US10024779
申请日：2001-12-20
IPC分类号： H04J1/00
CPC分类号： H04B1/7156 , H04B2001/71563
摘要： A slave radio transceiver for use in a frequency hopping radio system synchronizes by receiving on a sequence of simultaneous combinations of radio channels until a paging message is received from a master transceiver, and may then revert to single channel frequency hopping operation. The slave's multi-channel receiver is sub-equipped to receive simultaneously on a only sub-set (PF12, PF13) of the channels within its bandwidth, the received channels being selected by independent programming within the bandwidth. The channels received simultaneously may be selected to correspond to different degrees of misalignment between the master and slave.
摘要翻译： 用于跳频无线电系统的从属无线电收发器通过在无线电信道的同时组合的序列上的接收来同步，直到从主收发器接收到寻呼消息，然后可以恢复为单信道跳频操作。 从机的多通道接收机被配备成在其带宽内的通道的唯一子集（PF 12，PF 13）上同时接收，所接收的信道由带宽内的独立编程选择。 可以选择同时接收的通道以对应于主机和从机之间不同的不对准程度。
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公开(公告)号：US06823292B2
公开(公告)日：2004-11-23
申请号：US10265578
申请日：2002-10-07
申请人： Adrian G. Spencer
发明人： Adrian G. Spencer
IPC分类号： H03H1110
CPC分类号： H03J1/0008 , H03J3/185 , H03J3/20 , H03J2200/10 , H03J2200/28
摘要： A tuneable filter, for example an antenna filter in a single chip radio receiver, comprises a frequency selective circuit (12) including passive reactive components. At least some of the reactive components (48 to 52) are arranged as a bank (46 ) which includes switches (53 to 57) for switching at least one of the reactive components in the bank into the frequency selective circuit. A controller controls the switching means to select the or a combination of the reactive components which provides an optimum sensitivity for an input signal at a first frequency. The switch settings required to optimise the sensitivity for other frequencies is determined by measuring the decrease in sensitivity for other switch settings, with the input signal still at the first frequency, and using stored data about the shape of the frequency response of the tuneable filter.
摘要翻译： 可调谐滤波器，例如单芯片无线电接收机中的天线滤波器，包括包括被动反应分量的频率选择电路（12）。 至少一些无功部件（48至52）被布置为包括用于将该组中的至少一个无功部件切换到频率选择电路的开关（53至57）的组（46）。 控制器控制开关装置来选择或者是对第一频率的输入信号提供最佳灵敏度的无功分量的组合。 通过测量其他开关设置的灵敏度的降低，输入信号仍处于第一个频率，并使用关于可调谐滤波器的频率响应形状的存储数据来确定优化其他频率灵敏度所需的开关设置。
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公开(公告)号：US07302244B2
公开(公告)日：2007-11-27
申请号：US11051976
申请日：2005-02-04
IPC分类号： H04B17/00
CPC分类号： H04B7/0811 , H04B7/082 , Y02D70/1222 , Y02D70/1242 , Y02D70/144 , Y02D70/444
摘要： An antenna diversity receiver comprises a zero-IF receiver connected to two antennas (102a, 102b) via switches (532, 534). Simultaneous measurement of signal qualities from both antennas is possible by routing signals from the first antenna (102a) via a first mixer (106) and channel filter (116) and routing signals from the second antenna (102b) via a second mixer (108) and channel filter (118). A diversity controller (536) compares the signal qualities received from the antennas (102a, 102b) during a data preamble to select a preferred antenna, then adjusts the switches (532, 534) to route the signals from the preferred antenna to both input mixers (106, 108). The amplifier (104a, 104b) connected to the deselected antenna may be switched off during data reception, thereby minimizing extra power consumption.Such an antenna diversity receiver enables effective antenna selection to be performed, even in systems such as Bluetooth where only a very short preamble is provided for receiver configuration.
摘要翻译： 天线分集接收机包括通过开关（532,534）连接到两个天线（102a，102b）的零中频接收机。 通过经由第一混频器（106）和信道滤波器（116）对来自第一天线（102a）的信号经由第二混频器（102b）从第二天线（102b）路由信号，可以同时测量来自两个天线的信号质量 108）和通道滤波器（118）。 分集控制器（536）比较在数据前导码期间从天线（102a，102b）接收的信号质量以选择优选的天线，然后调整开关（532,534）以将来自优选天线的信号路由到两者 输入混合器（106,108）。 连接到取消天线的放大器（104a，104b）可以在数据接收期间被关闭，从而最小化额外的功率消耗。 这样的天线分集接收器即使在诸如蓝牙的系统中也只能为接收器配置提供非常短的前导码，因此能够执行有效的天线选择。
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公开(公告)号：US07157979B2
公开(公告)日：2007-01-02
申请号：US10526197
申请日：2003-08-22
IPC分类号： H03L7/00
CPC分类号： H03C3/0991 , H03C3/0925 , H03C3/0933 , H03C3/0941 , H03C3/095 , H03L7/0898 , H03L7/093 , H03L7/197 , H03L7/1976
摘要： A phase lock loop comprises a variable frequency oscillator (20), a divider (30), a phase comparator (40), a gain control stage (240), and a loop filter (50). The frequency response of the loop is measured by superimposing a modulation at a number of different rates on the error signal generated by the phase comparator, and by measuring for each modulation rate the peak-to-peak variation of the loop control signal controlling the oscillator frequency. If, due to errors in component values, the frequency response deviates from its desired value, the loop gain is adjusted to bring the frequency response close to its desired value.
摘要翻译： 锁相环包括可变频率振荡器（20），分频器（30），相位比较器（40），增益控制级（240）和环路滤波器（50）。 环路的频率响应是通过将由多个不同速率的调制叠加在由相位比较器产生的误差信号上，并通过测量每个调制速率来测量控制振荡器的环路控制信号的峰 - 峰变化 频率。 如果由于组件值的错误，频率响应偏离其所需值，则调整环路增益以使频率响应接近其所需值。
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公开(公告)号：US07103340B2
公开(公告)日：2006-09-05
申请号：US10153256
申请日：2002-05-22
CPC分类号： H04B7/0808 , H04B7/082
摘要： An antenna diversity arrangement is applicable to frequency hopping receiver (34) for receiving data packets transmitted on frequency channels lying within an overall frequency bandwidth, divided into a plurality of sub-bands. In each sub-band the frequency characteristics of the channel will be substantially the same. The choice of antenna (10, 12) for a particular sub-band is done by carrying-out frequency diversity measurements and the selection is treated as being valid for a period of time which may be preset or determined dynamically. In operation the hopping sequence is known to the receiver so that it can determine in advance the frequency of the next data packet to be received and can select the particular antenna without the necessity of carrying out diversity measurements. At the end of the time period the suitability of the selected antenna is checked and if necessary the selection is updated in the receiver.
摘要翻译： 天线分集装置可应用于跳频接收机（34），用于接收在被分成多个子频带的整个频带内的频道上发送的数据分组。 在每个子带中，信道的频率特性将基本相同。 用于特定子带的天线（10,12）的选择通过执行频率分集测量来完成，并且该选择被视为在可以动态地预设或确定的一段时间内有效。 在操作中，接收机已知跳频序列，使得它可以预先确定要接收的下一个数据分组的频率，并且可以选择特定的天线，而不需要进行分集测量。 在时间段结束时，检查所选天线的适用性，并且如果需要，在接收机中更新选择。
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公开(公告)号：US06871052B2
公开(公告)日：2005-03-22
申请号：US09894098
申请日：2001-06-28
CPC分类号： H04B7/0811 , H04B7/082 , Y02D70/1222 , Y02D70/1242 , Y02D70/144 , Y02D70/444
摘要： An antenna diversity receiver comprises a zero-IF receiver connected to two antennas (102a, 102b) via switches (532,534). Simultaneous measurement of signal qualities from both antennas is possible by routing signals from the first antenna (102a) via a first mixer (106) and channel filter (116) and routing signals from the second antenna (102b) via a second mixer (108) and channel filter (118). A diversity controller (536) compares the signal qualities received from the antennas (102a,102b) during a data preamble to select a preferred antenna, then adjusts the switches (532,534) to route the signals from the preferred antenna to both input mixers (106,108). The amplifier (104a,104b) connected to the deselected antenna may be switched off during data reception, thereby minimizing extra power consumption.Such an antenna diversity receiver enables effective antenna selection to be performed, even in systems such as Bluetooth where only a very short preamble is provided for receiver configuration.
摘要翻译： 天线分集接收机包括通过开关（532,534）连接到两个天线（102a，102b）的零中频接收机。 通过经由第一混合器（106）和信道滤波器（116）路由来自第一天线（102a）的信号和经由第二混频器（108）从第二天线（102b）路由信号，可以同时测量来自两个天线的信号质量， 和通道滤波器（118）。 分集控制器（536）比较在数据前导码期间从天线（102a，102b）接收的信号质量以选择优选天线，然后调整开关（532,534）以将来自优选天线的信号路由到两个输入混频器（106,108 ）。 连接到取消天线的放大器（104a，104b）可以在数据接收期间关闭，从而最大限度地减少额外的功耗。即使在诸如蓝牙的系统中，只有非常短的时间 为接收机配置提供前导码。
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