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1.发明授权Method and means of detecting the presence of a signal representing voice and of compressing the level of the signal 失效检测表示语音的信号的存在以及压缩信号电平的方法和装置
公开(公告)号：US4550426A
公开(公告)日：1985-10-29
申请号：US680444
申请日：1984-12-11
摘要： A circuit that combines the functions of audio compression and voice detection comprises an amplifier in a negative-feedback configuration in which the feedback signal is the product of the output of the amplifier and a syllabic voltage derived from that output. The syllabic voltage is compared with a threshold level to provide an output that is a measure of the presence of a voice signal. In an alternate embodiment, the syllabic voltage is compared with the sum of a threshold level and a detected syllabic voltage to generate a signal that is a measure of the presence of voice. The syllabic detector may be either an averaging detector or a valley detector.
摘要翻译： 组合音频压缩和语音检测功能的电路包括负反馈配置的放大器，其中反馈信号是放大器的输出和从该输出得到的音节电压的乘积。 将音节电压与阈值电平进行比较，以提供作为语音信号存在度量的输出。 在替代实施例中，将音节电压与阈值电平和检测到的音节电压的和进行比较，以产生作为语音存在的度量的信号。 音节检测器可以是平均检测器或谷值检测器。
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2.发明授权公开(公告)号：US07483700B2
公开(公告)日：2009-01-27
申请号：US11536240
申请日：2006-09-28
申请人： Gregory J. Buchwald , Steven F. Gillig , S. David Silk , Lawrence M. Ecklund , Stephen L. Kuffner
发明人： Gregory J. Buchwald , Steven F. Gillig , S. David Silk , Lawrence M. Ecklund , Stephen L. Kuffner
IPC分类号： H04Q7/20
CPC分类号： H04W72/082 , H04W72/0406 , Y02D70/142 , Y02D70/144
摘要： During operation of a secondary communication system, cells (106) are formed by a plurality of localized nodes (104) to alert other nodes within the cell of frequencies which must be protected or otherwise avoided. All nodes within the cell monitor a differing subset of all frequencies available, and share information with respect to acceptable and protected frequencies with each other via low-power, short-range communication. Each node then forms a list of available channels for communication, and chooses a single node to report this information back to controller.
摘要翻译： 在次要通信系统的操作期间，小区（106）由多个本地化节点（104）形成，以警告必须被保护或以其他方式避免的频率小区内的其他节点。 小区内的所有节点都监视所有可用频率的不同子集，并通过低功率，短距离通信彼此共享关于可接受和受保护频率的信息。 然后，每个节点形成用于通信的可用信道的列表，并且选择单个节点将该信息报告回控制器。
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3.发明申请公开(公告)号：US20080233991A1
公开(公告)日：2008-09-25
申请号：US11690323
申请日：2007-03-23
IPC分类号： H04Q7/22
摘要： During operation of a secondary communication system 100, a device will perform spectrum sensing of certain channels (either by itself or as part of a group of nodes 104). When activity is found on a channel from a primary user, other devices will be notified that the channel is not available for use. The device may then modify its spectrum sensing to assist another device (or group of devices) that have not yet found activity on a different set of channels. By assigning additional channels to devices with extra capacity, the overall spectrum-sensing efficiency and performance of the communication system 100 is raised.
摘要翻译： 在二次通信系统100的操作期间，设备将执行某些信道的频谱感测（由本身或作为一组节点104的一部分）。 当在主用户的频道上发现活动时，其他设备将被通知该频道不可用。 然后，设备可以修改其频谱感测以辅助尚未在不同的信道集合上发现活动的另一设备（或设备组）。 通过向具有额外容量的设备分配附加信道，提高了通信系统100的总体频谱感测效率和性能。
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公开(公告)号：US5572154A
公开(公告)日：1996-11-05
申请号：US498716
申请日：1995-07-03
CPC分类号： G11C27/026 , H03K17/74
摘要： A sample circuit (10) maintains linear operation over frequency. A switchable diode bridge (12) passes the analog input signal when enabled to one terminal of a sample storage capacitor (14). The second terminal of the capacitor is coupled through a closed FET switch (16) to a reference node (18). Once the analog input signal is stored across the capacitor, the FET switch opens before the diode bridge disables. When the second terminal of the capacitor floats and prevents any further charge from altering the sample voltage across the capacitor. When the diode bridge is disabled, the sample voltage across the capacitor does not change. The sample voltage may be amplified and digitized for further processing in the cellular system.
摘要翻译： 采样电路（10）在频率上保持线性运算。 当使能到样品存储电容器（14）的一个端子时，可切换二极管电桥（12）将模拟输入信号传递。 电容器的第二端子通过闭合FET开关（16）耦合到参考节点（18）。 一旦模拟输入信号存储在电容器两端，FET开关就会在二极管桥断开之前打开。 当电容器的第二端子漂移并且防止任何进一步的电荷改变电容器两端的采样电压时。 当二极管桥被禁用时，电容器两端的采样电压不会改变。 样品电压可以被放大并数字化以在蜂窝系统中进一步处理。
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5.发明授权
公开(公告)号：US5448763A
公开(公告)日：1995-09-05
申请号：US149677
申请日：1993-11-09
申请人： Steven F. Gillig
发明人： Steven F. Gillig
摘要： An apparatus and method for operating a phase locked loop frequency synthesizer responsive to radio frequency channel spacing. The phase locked loop (PLL) frequency synthesizer (300) tunes a radio frequency transceiver (100) to a radio frequency channel. A processor (110) in the transceiver (100) determines the channel spacing of the radio frequency channels in a portion of a radio frequency band including the radio frequency channel, and controls the PLL frequency synthesizer (300) responsive to the determined channel spacing. The present invention advantageously provides the PLL frequency synthesizer (300) with faster lock time and lower noise.
摘要翻译： 一种响应于射频信道间隔操作锁相环频率合成器的装置和方法。 锁相环（PLL）频率合成器（300）将射频收发器（100）调谐到射频信道。 收发器（100）中的处理器（110）确定包括射频信道在内的无线电频带的一部分中的射频信道的信道间隔，并根据确定的信道间隔控制PLL频率合成器（300）。 本发明有利地提供具有更快的锁定时间和更低噪声的PLL频率合成器（300）。
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公开(公告)号：US4727306A
公开(公告)日：1988-02-23
申请号：US878896
申请日：1986-06-26
CPC分类号： G01R19/16542 , H02J7/008 , H02J7/0091 , G01R31/3675 , Y10S320/12
摘要： A unique automatic battery charger (100) is described that recharges a battery (202) including a thermistor (206) for sensing the battery temperature. The charger (100) produces both a slow-charge current and a fast-charge current. Upon detecting the presence of the battery (202), the unique charger (100) turns on a fast-charge current produced by a switchable current source (110-113). The fast-charge current is subsequently turned off when the battery (202) is fully charged as indicated by the status of monitored temperature and voltage conditions. Comparators (180-184) are utilized to monitor these voltage and temperature conditions. According to a novel feature of the present invention, the monitored temperature thresholds are changed in response to the supply voltage. The automatic battery charging apparatus of the present invention may be advantageously utilized in a variety of applications for rapidly and safely charging batteries used in battery-operated electrical apparatus.
摘要翻译： 描述了一种独特的自动电池充电器（100），其对包括用于感测电池温度的热敏电阻（206）的电池（202）进行再充电。 充电器（100）产生慢充电电流和快充电流。 在检测到电池（202）的存在时，唯一充电器（100）接通由可切换电流源（110-113）产生的快速充电电流。 当电池（202）充满电时，快速充电电流随后被关闭，如所监视的温度和电压条件的状态所示。 比较器（180-184）用于监测这些电压和温度条件。 根据本发明的新颖特征，监视的温度阈值响应于电源电压而改变。 本发明的自动电池充电装置可以有利地用于各种应用中，用于快速和安全地对在电池供电的电气设备中使用的电池进行充电。
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公开(公告)号：US08472390B2
公开(公告)日：2013-06-25
申请号：US12710490
申请日：2010-02-23
申请人： S. David Silk , Steven F. Gillig
发明人： S. David Silk , Steven F. Gillig
IPC分类号： H04W24/00
CPC分类号： H04W72/048
摘要： A method and apparatus for allocating spectrum within a wireless communication system is provided herein. During operation, a first base station will determine a location of a UE wishing to transmit. A database will be accessed containing wireless coverage area information for base stations with overlapping coverage with the first base station. Based on this information the first base station will determine if the UE is within an overlapping coverage area of multiple base stations. Spectrum will be assigned to the wireless equipment in a guard band, based at least in part on the determination that the UE is not within the overlapping coverage area.
摘要翻译： 本文提供了一种用于在无线通信系统内分配频谱的方法和装置。 在操作期间，第一基站将确定希望发送的UE的位置。 将访问包含与第一基站重叠覆盖的基站的无线覆盖区域信息的数据库。 基于该信息，第一基站将确定UE是否在多个基站的重叠覆盖区域内。 至少部分地基于UE不在重叠覆盖区域内的确定，频谱将被分配给保护频带中的无线设备。
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8.发明申请METHOD AND APPARATUS FOR SETTING AND MANAGING OPERATIONAL DYNAMICS WITHIN COGNITIVE RADIO NETWORKS 有权用于在认知无线电网络中设置和管理运行动态的方法和装置公开(公告)号：US20080155249A1
公开(公告)日：2008-06-26
申请号：US11614403
申请日：2006-12-21
申请人： Charles A. Backof , Steven D. Bromley , John D. Bruner , Lawrence M. Ecklund , Steven F. Gillig , John K. Grosspietsch , Whay Chiou Lee , Scott E. Preece
发明人： Charles A. Backof , Steven D. Bromley , John D. Bruner , Lawrence M. Ecklund , Steven F. Gillig , John K. Grosspietsch , Whay Chiou Lee , Scott E. Preece
CPC分类号： H04B1/0003
摘要： In certain embodiments, a method for managing operational parameters of a cognitive radio device to minimize non-compliance with a regulatory policy involves sensing a change in an operational condition that will affect compliance with a current operational policy; estimating a time at which the current operational policy will become invalid; selecting a method for determining how to update the current operational policy; and updating the current operational policy of the cognitive radio device. Other embodiments may incorporate more, fewer or other elements.
摘要翻译： 在某些实施例中，用于管理认知无线电设备的操作参数以最小化不符合监管策略的方法涉及感测将影响对当前操作策略的遵从的操作条件的变化; 估计当前业务政策将无效的时间; 选择用于确定如何更新当前操作策略的方法; 并更新认知无线电设备的当前操作策略。 其他实施例可并入更多，更少或其他元件。
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9.发明授权
公开(公告)号：US5497126A
公开(公告)日：1996-03-05
申请号：US149259
申请日：1993-11-09
摘要： An improved phase synchronization circuit (301) and method therefor for a phase locked loop (300). Each of a divided reference frequency signal (206) and a feedback signal (209) is held in a predetermined state. The divided reference frequency signal (206) is enabled responsive to the phase of a reference frequency signal (115). A phase relationship between the reference frequency signal (115) and an output frequency signal (116 or 117) is determined. The feedback signal (209) is enabled responsive to enabling the divided reference frequency signal (206) and the determined phase relationship. The present invention advantageously provides a rapid and accurate phase synchronization for the PLL (300) with minimum additional hardware and without introducing phase error into the PLL (300).
摘要翻译： 一种用于锁相环（300）的改进的相位同步电路（301）及其方法。 划分的参考频率信号（206）和反馈信号（209）中的每一个被保持在预定状态。 分频参考频率信号（206）能够响应于参考频率信号（115）的相位被使能。 确定参考频率信号（115）和输出频率信号（116或117）之间的相位关系。 响应于启用分割的参考频率信号（206）和所确定的相位关系，反馈信号（209）被启用。 本发明有利地提供具有最小附加硬件的PLL（300）的快速和准确的相位同步，并且不将相位误差引入到PLL（300）中。
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公开(公告)号：US5020076A
公开(公告)日：1991-05-28
申请号：US526156
申请日：1990-05-21
CPC分类号： H04B14/006 , H04L27/2075
摘要： A .pi./4-shift DQPSK modulator modulates a digitized voice signal and other information. An FM modulator modulates the analog voice signal and other information. The FM modulator is coupled to the quadrature mixers (109 and 110) of the .pi./4-shift DQPSK modulator. When an FM modulated signal is required, the mixers (109 and 110) are biased (114) to allow carrier feedthrough by applying a fixed, non-zero DC signal to one or both mixers (109 and 110). The carrier is then FM modulated using conventional methods such as voltage-modulation of a phase locked loop (PPL) (113). When .pi./4-shift DQPSK is to be generated, the conventional baseband I and Q vector-length signals (101 and 102) are applied to the mixers (109 and 110), and the carrier is left unmodulated by switching (115) out the input signal to the PLL (113). The PPL (113) will then generate only the carrier frequency to be mixed with the I and Q vector-length signals (101 and 102).
摘要翻译： pi / 4位DQPSK调制器调制数字化语音信号和其他信息。 FM调制器调制模拟语音信号和其他信息。 FM调制器耦合到pi / 4位DQPSK调制器的正交混频器（109和110）。 当需要FM调制信号时，通过向一个或两个混频器（109和110）施加固定的非零DC信号，混频器（109和110）被偏置（114）以允许载波馈通。 然后使用诸如锁相环（PPL）（113）的电压调制的常规方法对载波进行FM调制。 当要生成pi / 4位DQPSK时，传统的基带I和Q向量长度信号（101和102）被施加到混频器（109和110），并且通过切换（115）输出使载波不被调制 输入到PLL（113）的信号。 然后，PPL（113）将仅生成要与I和Q矢量长度信号（101和102）混合的载波频率。
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