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公开(公告)号：US07801311B2
公开(公告)日：2010-09-21
申请号：US11227357
申请日：2005-09-15
CPC分类号： H04S1/00 , H04B1/1676
摘要： A stereo decoder includes a first digital filter for producing a first filtered composite audio signal and a second digital filter for producing a second filtered composite audio signal. A sum/difference network produces a left channel signal and a right channel signal. A processor executes operational instructions that calculate a first corner frequency of a first digital filter based on a signal quality of the FM signal, calculate a first set of filter coefficients for the first digital filter based on the first corner frequency and an approximation of a filter transform, calculate a second corner frequency of a second digital filter based on the signal quality, and calculate a second set of filter coefficients for the second digital filter, based on the second corner frequency and the approximation of the filter transform.
摘要翻译： 立体声解码器包括用于产生第一滤波复合音频信号的第一数字滤波器和用于产生第二滤波复合音频信号的第二数字滤波器。 和/差网络产生左声道信号和右声道信号。 处理器执行操作指令，其基于FM信号的信号质量来计算第一数字滤波器的第一转角频率，基于第一转角频率和滤波器的近似计算第一数字滤波器的第一组滤波器系数 基于信号质量计算第二数字滤波器的第二转角频率，并且基于第二转角频率和滤波器变换的近似来计算第二数字滤波器的第二组滤波器系数。
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2.发明授权公开(公告)号：US07460847B2
公开(公告)日：2008-12-02
申请号：US11217763
申请日：2005-09-01
CPC分类号： H03G3/3052 , H04B17/20 , H04B17/318
摘要： A radio receiver, optionally used in conjunction with a handheld audio system, includes a radio stage for processing a received radio signal into an audio signal. An audio stage produces an audio output, based on the audio signal. An overload monitor detects an overload condition in the radio stage and generates an overload signal in response to the detected overload condition. A controller controls the audio output in response to the overload signal.
摘要翻译： 可选地与手持音频系统一起使用的无线电接收机包括用于将接收的无线电信号处理成音频信号的无线电台。 音频级基于音频信号产生音频输出。 过载监视器检测无线电级中的过载状况，并根据检测到的过载条件产生过载信号。 控制器响应于过载信号控制音频输出。
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3.发明授权Wireless handset having selective communication control and corresponding methods 有权具有选择性通信控制的无线手机和相应的方法公开(公告)号：US07844307B2
公开(公告)日：2010-11-30
申请号：US11340441
申请日：2006-01-26
CPC分类号： H04W52/0264 , H04B2001/3866 , H04M1/677 , H04M1/72558 , Y02D70/1224 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/23
摘要： A wireless handset includes a long range wireless transceiver for selectively providing an inbound communication and an outbound communication through a wireless telephone network. A battery monitor module monitors a remaining power of a battery and produces a control signal when the remaining power compares unfavorably to a reserve power threshold. A processing module allows an outbound communication to an allowed recipient when the control signal is asserted, and prohibits an outbound communication to a disallowed recipient when the control signal is asserted.
摘要翻译： 无线手机包括用于选择性地通过无线电话网络提供入站通信和出站通信的远程无线收发器。 电池监视器模块监视电池的剩余电量，并且当剩余功率与预留功率阈值不利地相比时产生控制信号。 当控制信号被断言时，处理模块允许到允许的接收者的出站通信，并且当控制信号被断言时，禁止与不允许的接收者的出站通信。
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4.发明授权公开(公告)号：US06201764B1
公开(公告)日：2001-03-13
申请号：US08962125
申请日：1997-10-31
IPC分类号： G01V138
CPC分类号： G01V1/362 , G01V1/3808 , Y10S367/911
摘要： A method and an apparatus are provided for matching the response of hydrophones 22 to the response of geophones 24 and significantly reducing response variations between hydrophones caused by inherent characteristics. The method includes the steps of determining a capacitance 66 for each of the hydrophones 22 in an operating environment, configuring a filter 36 based on the capacitance 66, and modifying a response of a channel of the hydrophone 22 using the filter 36. The apparatus includes an acquisition unit 20 having a geophone 24 and a hydrophone 22, a recording unit 30, a processing unit 31 and a filter 36 for correcting for variation between hydrophones 22 and changing a first order low frequency response of the hydrophone 22 to appear like a second order response like that of the geophone 24.
摘要翻译： 提供了一种方法和装置，用于将水听器22的响应与地震检波器24的响应相匹配，并显着减少由固有特性引起的水听器之间的响应变化。 该方法包括以下步骤：在操作环境中为每个水听器22确定电容66，基于电容66构成滤波器36，以及使用滤波器36修改水听器22的通道的响应。该装置包括 具有地震检波器24和水听器22的采集单元20，记录单元30，处理单元31和滤波器36，用于校正水听器22之间的变化并改变水听器22的一阶低频响应，看起来像第二 类似地震检波器的订单响应24。
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公开(公告)号：US20120244825A1
公开(公告)日：2012-09-27
申请号：US13070683
申请日：2011-03-24
申请人： Brian D. Green , Jing Li , Thomas Glen Ragan , Michael R. May
发明人： Brian D. Green , Jing Li , Thomas Glen Ragan , Michael R. May
IPC分类号： H04B17/00
CPC分类号： H03G3/3073 , H03G3/3052 , H04B17/318
摘要： A radio frequency (RF) signal is received in a receiver, and various counts based on information from the signal can be obtained. Counts of a number of samples of the RF signal exceeding first and second thresholds can be accumulated during an accumulation window. From the first of these counts, it can be determined if the count exceeds a first metric corresponding to a first predetermined count value, and if so, a gain of an RF gain element can be reduced. From the second of these counts it can be determined if this count exceeds a second metric corresponding to a second predetermined count value, and if not, the gain can be increased.
摘要翻译： 在接收机中接收射频（RF）信号，并且可以获得基于来自信号的信息的各种计数。 可以在累积窗口期间累积超过第一和第二阈值的RF信号的多个样本的计数。 从这些计数中的第一个可以确定计数是否超过对应于第一预定计数值的第一度量，如果是，则可以减小RF增益元件的增益。 从这些计数中的第二个可以确定该计数是否超过对应于第二预定计数值的第二度量，如果不是，则可以增加增益。
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公开(公告)号：US09172344B2
公开(公告)日：2015-10-27
申请号：US13070683
申请日：2011-03-24
申请人： Brian D. Green , Jing Li , Thomas Glen Ragan , Michael R. May
发明人： Brian D. Green , Jing Li , Thomas Glen Ragan , Michael R. May
IPC分类号： H04B1/06 , H04B7/00 , H03G3/30 , H04B17/318
CPC分类号： H03G3/3073 , H03G3/3052 , H04B17/318
摘要： A radio frequency (RF) signal is received in a receiver, and various counts based on information from the signal can be obtained. Counts of a number of samples of the RF signal exceeding first and second thresholds can be accumulated during an accumulation window. From the first of these counts, it can be determined if the count exceeds a first metric corresponding to a first predetermined count value, and if so, a gain of an RF gain element can be reduced. From the second of these counts it can be determined if this count exceeds a second metric corresponding to a second predetermined count value, and if not, the gain can be increased.
摘要翻译： 在接收机中接收射频（RF）信号，并且可以获得基于来自信号的信息的各种计数。 可以在累积窗口期间累积超过第一和第二阈值的RF信号的多个样本的计数。 从这些计数中的第一个可以确定计数是否超过对应于第一预定计数值的第一度量，如果是，则可以减小RF增益元件的增益。 从这些计数中的第二个可以确定该计数是否超过对应于第二预定计数值的第二度量，如果不是，则可以增加增益。
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公开(公告)号：US07729682B2
公开(公告)日：2010-06-01
申请号：US11237339
申请日：2005-09-28
IPC分类号： H04B1/26
CPC分类号： H04B1/28
摘要： A receiver includes a mixing module for mixing an input signal by at least one mixing sequence to produce a mixed signal. The mixed signal is filtered to produce a first filtered signal. A first downsampler downsamples the first filtered signal to produce a first decimated signal, wherein the decimation period is not a multiple of the mixing period.
摘要翻译： 接收机包括混合模块，用于通过至少一个混合序列混合输入信号以产生混合信号。 对混合信号进行滤波以产生第一滤波信号。 第一下采样器对第一滤波信号进行下采样以产生第一抽取信号，其中抽取周期不是混合周期的倍数。
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公开(公告)号：US07640041B2
公开(公告)日：2009-12-29
申请号：US11290329
申请日：2005-11-30
申请人： Thomas Glen Ragan
发明人： Thomas Glen Ragan
IPC分类号： H04B1/38
CPC分类号： H04M1/72522 , H04M1/72563 , H04M1/72577 , H04W52/0274 , Y02D70/00
摘要： A method for enabling at least a portion of a multiple function handheld device begins by enabling at least a portion of a digital audio functionality in response to a first mode selection. The method continues by disabling wireless communication functionality in response to the first mode selection.
摘要翻译： 一种使得多功能手持设备的至少一部分能够响应于第一模式选择启用数字音频功能的至少一部分而开始的方法。 该方法通过响应于第一模式选择而禁用无线通信功能来继续。
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公开(公告)号：US07565112B2
公开(公告)日：2009-07-21
申请号：US11366266
申请日：2006-03-02
申请人： Thomas Glen Ragan
发明人： Thomas Glen Ragan
IPC分类号： H04B1/00
CPC分类号： H04B1/1027
摘要： A method for reducing adjacent channel interference begins by determining a desired channel of a radio frequency (RF) signal. The method continues by determining a plurality of potential local oscillations for the desired channel. The method continues by determining a proximal power level of an image frequency of each of the plurality of potential local oscillations to produce a plurality of proximal power levels. The method continues by selecting one of the plurality of potential local oscillations for down converting the desired channel based on the plurality of proximal power levels.
摘要翻译： 通过确定射频（RF）信号的期望信道，开始减少相邻信道干扰的方法。 通过确定所需信道的多个潜在的局部振荡来继续该方法。 该方法通过确定多个潜在局部振荡中的每一个的图像频率的近端功率电平来产生多个近端功率电平来继续。 该方法通过选择多个潜在本地振荡中的一个来继续，用于基于多个近端功率电平对所需信道进行下变频。
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