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41. 发明授权

US08154329B2 Device and method for phase compensation 有权
标题翻译：相位补偿装置及方法
公开(公告)号：US08154329B2
公开(公告)日：2012-04-10
申请号：US12650649
申请日：2009-12-31
申请人： Lawrence M. Ecklund , Robert E. Stengel
发明人： Lawrence M. Ecklund , Robert E. Stengel
IPC分类号： H03L7/06
CPC分类号： H03L7/1974
摘要： A frequency generation unit is provided that permits a receiver to tune from channel to channel without cycle skipping and in which compensation for phase offset introduced during tuning is provided. The frequency generation unit includes a fractional-N synthesizer, a voltage controlled oscillator (VCO), and a direct digital synthesizer (DDS). The fractional-N synthesizer generates frequencies from the VCO as well as a temperature controlled crystal oscillator. Outputs from the fractional-N synthesizer are supplied both the VCO and the DDS to control the VCO and DDS. The combination of the voltage controlled oscillator and fractional-N synthesizer is perpetually locked. The fractional-N synthesizer is maintained in a locked condition. The VCO output is provided to the DDS. An output from the DDS or from the fractional-N synthesizer forms the output signal of the frequency generation unit.
摘要翻译：提供了频率产生单元，其允许接收器在没有周期跳过的情况下从信道调谐到信道，并且在提供在调谐期间引入的相位偏移补偿。频率产生单元包括分数N合成器，压控振荡器（VCO）和直接数字合成器（DDS）。分数N合成器从VCO产生频率以及温度控制的晶体振荡器。来自分数N合成器的输出都由VCO和DDS提供，以控制VCO和DDS。压控振荡器和分数N合成器的组合永久锁定。分数N合成器保持在锁定状态。 VCO输出提供给DDS。来自DDS或分数N合成器的输出形成频率产生单元的输出信号。

42. 发明授权

US07796948B2 Method and apparatus for optimizing radio performance through inferred knowledge of indoor-outdoor radio status 有权
标题翻译：通过室内 - 室外无线电状态的推断知识优化无线电性能的方法和装置
公开(公告)号：US07796948B2
公开(公告)日：2010-09-14
申请号：US11610096
申请日：2006-12-13
申请人： John K. Grosspietsch , Charles A. Backof, Jr. , Lawrence M. Ecklund , Louis J. Vannatta
发明人： John K. Grosspietsch , Charles A. Backof, Jr. , Lawrence M. Ecklund , Louis J. Vannatta
IPC分类号： H04B17/00
CPC分类号： H04B1/005
摘要： Performance of a radio device is optimized by estimating if the device is inside a building. One or more sensors on the radio device are used to measure an environmental quantities relating to the environment of the radio device. The likelihood of the radio device being inside a building is inferred from these measurements. The operation of the radio device then is controlled accordingly. For example, if the radio device is determined to be inside a building, a low operating frequency may be selected for the radio device if a wide area network connection is required, while a high operating frequency may be selected if a local connection is required. An environmental quantity may be, for example, a satellite signal, ambient light, temperature, RF energy, or the response to a test signal emitted by the radio device.
摘要翻译：通过估计设备是否在建筑物内部来优化无线电设备的性能。无线电设备上的一个或多个传感器用于测量与无线电设备的环境有关的环境数量。从这些测量推断出无线电设备在建筑物内的可能性。然后相应地控制无线电设备的操作。例如，如果无线电设备被确定在建筑物内部，则如果需要广域网络连接，则可以为无线电设备选择低操作频率，而如果需要本地连接，则可以选择高操作频率。环境量可以是例如卫星信号，环境光，温度，RF能量或对由无线电设备发射的测试信号的响应。

43. 发明申请

US20090049159A1 Method and Apparatus for Setting Up and Managing Operational Environment in P2P Wireless Networks 有权
标题翻译： P2P无线网络运行环境设置与管理方法与设备
公开(公告)号：US20090049159A1
公开(公告)日：2009-02-19
申请号：US11839133
申请日：2007-08-15
申请人： Dragan M. Boscovic , Wlodzimierz S. Czarnocki , Lawrence M. Ecklund , Gary W. Grube
发明人： Dragan M. Boscovic , Wlodzimierz S. Czarnocki , Lawrence M. Ecklund , Gary W. Grube
IPC分类号： G06F15/177
CPC分类号： H04W88/06 , H04W16/14
摘要： In a cognitive radio, a method of establishing an operational policy for use in a Peer-to-Peer (P2P) group, wherein the policy can be described by layers of policy parameters with progressively higher layers having a progressively increasing number of parameters, involves determining that a policy change is to be made from a current policy; requesting policy information from at least one P2P group member; receiving a policy description from the at least one P2P group member; and implementing a change in the lowest layer policy parameter to establish a new operational policy.
摘要翻译：在认知无线电中，建立在对等（P2P）组中使用的操作策略的方法，其中所述策略可以由具有逐渐增加的参数数量的逐渐增加的层的策略参数层描述，涉及确定从现行政策中作出政策变更; 从至少一个P2P组成员请求策略信息; 从所述至少一个P2P组成员接收策略描述; 并实施最低层策略参数的变更，以建立新的运营策略。

44. 发明授权

US5239699A AM-FM combined stereo receiver 失效
标题翻译： AM-FM组合式立体声接收器
公开(公告)号：US5239699A
公开(公告)日：1993-08-24
申请号：US651713
申请日：1991-02-06
申请人： Lawrence M. Ecklund
发明人： Lawrence M. Ecklund
IPC分类号： H03D1/00 , H03D3/02 , H04B1/16 , H04H1/00 , H04H20/49
CPC分类号： H04H20/49 , H04B1/1646
摘要： An improved AM-FM combined stereo receiver is provided having a single processor for removing, in the FM mode, arctangent distortion, and in the AM mode, to process the phase term from arctangent ##EQU1## to determine ##EQU2## Further, the radio includes a single discriminator circuit wherein, in the FM mode, the discriminator tank circuit is used to convert frequency deviation to baseband audio and, in the AM mode, the discriminator tank circuit is used as the frequency-determining element for the voltage controlled oscillator (VCO), the VCO being used to translate the intermediate frequency (IF) signal to baseband.
摘要翻译：提供了一种改进的AM-FM组合立体声接收机，其具有用于在FM模式中去除反正切失真的单个处理器，并且在AM模式下，从反正切处理相位项以确定。此外，无线电包括单鉴别器电路，其中在FM模式中，鉴频器电路用于将频偏转换为基带音频，并且在AM模式中，鉴频器电路用作压控振荡器的频率确定元件（ VCO），VCO用于将中频（IF）信号转换为基带。

45. 发明授权

US4890072A Phase locked loop having a fast lock current reduction and clamping circuit 失效
标题翻译：锁相环具有快速锁定电流降低和钳位电路
公开(公告)号：US4890072A
公开(公告)日：1989-12-26
申请号：US151870
申请日：1988-02-03
申请人： Roy H. Espe , Lawrence M. Ecklund
发明人： Roy H. Espe , Lawrence M. Ecklund
IPC分类号： H03L7/18 , H03L7/093 , H03L7/10 , H03L7/113
CPC分类号： H03L7/10
摘要： A circuit for use in a phase locked loop (PLL) which is responsive to the PLL being out of lock for providing fast lock current to drive the VCO of the PLL in the direction to acquire lock. The circuit includes a pair of controlled current sources responsive to selective control signals for either sourcing or sinking fast lock current at the output of the circuit that are utilized to produce an error control voltage at the loop filter to drive the VCO accordingly while a reducing circuit is responsive to the control voltage reaching a predetermined value as the VCO is driven toward one end or the other of its range for clamping the control voltage while reducing the fast lock current to a reduced value thereby limiting excessive charge build-up on the loop filter capacitor of the PLL. Thus, the circuit permits the VCO to acquire fast lock up by providing fast lock current thereto while clamping the range of the VCO and reducing the fast lock current as the VCO approaches either end of its range. Upon acquiring lock up, the controlled current sources are disabled.

46. 发明授权

US4872207A Automatic IF tangent lock control circuit 失效
标题翻译：自动IF切线锁控制电路
公开(公告)号：US4872207A
公开(公告)日：1989-10-03
申请号：US231936
申请日：1988-08-15
申请人： Lawrence M. Ecklund
发明人： Lawrence M. Ecklund
IPC分类号： H03D1/22 , H03J7/10
CPC分类号： H03J7/10 , H03D1/2236
摘要： An improved radio receiver that maintains a stable predetermined IF frequency upon receipt of input carrier signals of differing frequencies. The IF signal (14) is processed through a signal demodulation unit (16) that includes a tangent processing unit (22) to yield a control signal that varies as a tangent function of both the demodulated IF signal and a reference signal from a reference oscillator (17). This control signal is used to control the frequency and phase of a reference signal (26) used by the IF stage (12) to center the IF signal with respect to the IF stage characteristics.
摘要翻译：一种改进的无线电接收机，其在接收到不同频率的输入载波信号时保持稳定的预定IF频率。 IF信号（14）通过包括切线处理单元（22）的信号解调单元（16）进行处理，以产生作为解调的IF信号和来自基准振荡器的参考信号的切线函数而变化的控制信号（17）。该控制信号用于控制由IF级（12）使用的参考信号（26）的频率和相位，以使IF信号相对于IF级特性居中。

47. 发明授权

US4774476A Linearized differential amplifier 失效
标题翻译：线性化差分放大器
公开(公告)号：US4774476A
公开(公告)日：1988-09-27
申请号：US69920
申请日：1987-07-06
申请人： Lawrence M. Ecklund , Charles J. Marik
发明人： Lawrence M. Ecklund , Charles J. Marik
IPC分类号： H03F3/45 , H03F1/32
CPC分类号： H03F1/3211 , H03F2203/45201
摘要： A linearized differential amplifier having two feedback paths. One of the feedback paths functions to linearize the output of the differential amplifier. The remaining feedback path functions to slightly limit the operating range of the differential amplifier to ensure the operational stability of the differential amplifier.
摘要翻译：具有两个反馈路径的线性化差分放大器。反馈路径中的一个用于使差分放大器的输出线性化。剩余的反馈路径用于稍微限制差分放大器的工作范围，以确保差分放大器的运行稳定性。

48. 发明授权

US4679237A Correction control circuit for AM stereophonic receivers 失效
标题翻译： AM立体声接收机校正控制电路
公开(公告)号：US4679237A
公开(公告)日：1987-07-07
申请号：US761730
申请日：1985-08-02
申请人： Lawrence M. Ecklund
发明人： Lawrence M. Ecklund
IPC分类号： H04S1/00 , H04H1/00 , H04H20/49 , H04H5/00
CPC分类号： H04H20/49
摘要： A correction control circuit for use in compatible AM stereophonic receivers of the type utilizing a cosine correction signal to remove inherent distortion from the received and detected signals. During periods of weak or noisy signals or when co-channel interference is present, excess cosine correction signal causes a reduction in the amount of stereo difference signal component in the output signals, and in the amount of correction provided. In a worst case signal situation, there will be no difference signal component in the output and the monophonic output not be corrected.
摘要翻译：一种用于兼容AM立体声接收机的校正控制电路，利用余弦校正信号从接收和检测到的信号中去除固有失真。在弱信号或噪声信号期间，或者当存在同信道干扰时，过多的余弦校正信号导致输出信号中的立体声差信号分量的量以及提供的校正量。在最坏的情况下，信号情况下，输出信号分量不会有差异，单声道输出不能被校正。

49. 发明授权

US4583244A Automatic frequency control for local oscillator used with an AM stereo decoder 失效
标题翻译：与AM立体声解码器一起使用的本地振荡器的自动频率控制
公开(公告)号：US4583244A
公开(公告)日：1986-04-15
申请号：US622930
申请日：1984-06-21
申请人： Lawrence M. Ecklund
发明人： Lawrence M. Ecklund
IPC分类号： H04H20/88 , H03J7/02 , H03J7/08 , H04H5/00
CPC分类号： H03J7/08
摘要： The AFC gain of the local oscillator of an AM stereophonic decoder is linearized by the use of difference channel (L-R) information for controlling the capacitance of two varactor-type devices coupled across and in series with the oscillator inductance coil. The improvement helps to prevent "falsing" of the pilot tone indicator and the mono/stereo mode circuitry, particularly at the ends of the tuning range of a manually tuned receiver.
摘要翻译： AM立体声解码器的本地振荡器的AFC增益通过使用差分通道（L-R）信息来线性化，用于控制耦合在振荡器电感线圈上并串联的两个变容二极管型器件的电容。该改进有助于防止导频音指示器和单声道/立体声模式电路的“伪造”，特别是在手动调谐接收机的调谐范围的末端。

50. 发明授权

US4410762A Dual mode tone detector circuit 失效
标题翻译：双模式音检测电路
公开(公告)号：US4410762A
公开(公告)日：1983-10-18
申请号：US262839
申请日：1981-05-12
申请人： Lawrence M. Ecklund
发明人： Lawrence M. Ecklund
IPC分类号： G01R19/00 , G01R19/165 , G01R23/177 , H04B1/16 , H04H1/00 , H04H20/49 , H04L27/00 , H04H5/00
CPC分类号： H04H20/49 , G01R19/0007 , G01R19/1658 , G01R23/177
摘要： A low frequency tone detector filters out undesired frequencies in a received signal, than a latching circuit locks on when a given number of low frequency cycles are detected, having at least a predetermined peak amplitude. Thereafter, only a second given number of missing or low amplitude cycles will reset the latch. When the detector determines that the received signal is weak or of very poor quality, false detect signals are essentially prevented. The circuit is particularly suited to use with AM stereophonic signals where a low frequency tone is added to the difference channel for providing mono/stereo indication and mode switching.
摘要翻译：当检测到给定数量的低频周期时，低频音检测器滤除接收信号中的不希望的频率，比锁存电路锁定，具有至少预定的峰值幅度。此后，只有第二个给定数量的丢失或低幅度周期将复位锁存器。当检测器确定接收到的信号弱或质量非常差时，基本上防止了错误的检测信号。该电路特别适用于AM立体声信号，其中将低频音调添加到差分通道以提供单声道/立体声指示和模式切换。

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