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1. 发明授权

US06570910B1 Baseband processor with look-ahead parameter estimation capabilities 有权
标题翻译：具有先行参数估计功能的基带处理器
公开(公告)号：US06570910B1
公开(公告)日：2003-05-27
申请号：US09426374
申请日：1999-10-25
申请人： Gregory E. Bottomley , Paul W. Dent , Ross W. Lampe
发明人： Gregory E. Bottomley , Paul W. Dent , Ross W. Lampe
IPC分类号： H04B166
CPC分类号： H04L25/03337 , H03M13/39 , H04B17/26 , H04B17/318 , H04B17/373 , H04L1/0054 , H04L25/0212 , H04L25/025
摘要： In a receiver for receiving data samples including a sequence of symbol values transmitted across the channel, a baseband processor including a first hypothesize unit developing first sets of hypothetical symbol values, a second hypothesize unit developing second sets of hypothetical symbol values different from the first sets, a parameter estimator receiving the received data samples and the first and second sets of hypothetical symbol values and developing parameter estimates based thereon, and a sequence estimator receiving the developed parameter estimates, the first sets of hypothetical symbol values and a delayed version of the received data samples and developing a sequence of detected symbol values related to the received data samples.
摘要翻译：在用于接收数据样本的接收机中，包括通过所述信道发送的符号值序列的基带处理器，包括第一假设单元，其形成第一组假设符号值;第二假设单元，形成与所述第一组不同的第二组假设符号值接收接收到的数据样本的参数估计器以及基于其的开发参数估计的第一和第二组假设符号值以及接收所开发的参数估计的序列估计器，所接收的第一组假设符号值和延迟版本数据样本并开发与接收的数据样本相关的检测符号值的序列。

2. 发明授权

US5631604A Waste energy control and management in power amplifiers 失效
标题翻译：功率放大器的废能量控制和管理
公开(公告)号：US5631604A
公开(公告)日：1997-05-20
申请号：US475659
申请日：1995-06-07
申请人： Paul W. Dent , Ross W. Lampe
发明人： Paul W. Dent , Ross W. Lampe
IPC分类号： H03F3/68 , H03F1/02 , H03F1/32 , H03F3/60 , H04B1/04 , H04B1/16 , H04B1/52 , H04B7/185
CPC分类号： H04B1/1607 , H03F1/0294 , H03F1/3229 , H03F1/3252 , H03F3/602 , H04B1/0483 , H04B1/52 , H04B1/04 , H04B2001/0433
摘要： An amplifying apparatus for linearly amplifying a desired signal using a pair of coupled non-linear amplifiers is disclosed. The amplifying apparatus comprises a limiter for separating amplitude variations from the desired signal and producing a constant amplitude signal bearing the phase of the desired signal and an amplitude related signal. In addition, a drive signal generater produces two drive signals each dependent on the constant amplitude signal and the amplitude related signal such that each drive signal depends on the phase of the desired signal and such that the sum of the squares of the amplitudes of the drive signals is constant. Finally, a coupler couples the two drive signals to produce two constant amplitude signals for driving the pair of non-linear power amplifiers and for coupling the outputs of the power amplifiers to produce two amplified output signals, one of which is the linearly amplified desired signal and the other of which is a waste energy signal.
摘要翻译：公开了一种使用一对耦合的非线性放大器线性放大所需信号的放大装置。放大装置包括用于将振幅变化与期望信号分离并产生承载所需信号和振幅相关信号的相位的恒定振幅信号的限幅器。此外，驱动信号发生器产生两个驱动信号，每个驱动信号依赖于恒定幅度信号和振幅相关信号，使得每个驱动信号取决于期望信号的相位，并且使得驱动器幅度的平方和之和信号是恒定的。最后，耦合器将两个驱动信号耦合以产生两个恒定幅度信号，用于驱动一对非线性功率放大器并耦合功率放大器的输出以产生两个放大的输出信号，其中之一是线性放大的期望信号另一个是废能信号。

3. 发明授权

US5574967A Waste energy control and management in power amplifiers 失效
标题翻译：功率放大器的废能量控制和管理
公开(公告)号：US5574967A
公开(公告)日：1996-11-12
申请号：US179947
申请日：1994-01-11
申请人： Paul W. Dent , Ross W. Lampe
发明人： Paul W. Dent , Ross W. Lampe
IPC分类号： H03F3/68 , H03F1/02 , H03F1/32 , H03F3/60 , H04B1/04 , H04B1/16 , H04B1/52 , H04B7/185
CPC分类号： H04B1/1607 , H03F1/0294 , H03F1/3229 , H03F1/3252 , H03F3/602 , H04B1/0483 , H04B1/52 , H04B1/04 , H04B2001/0433
摘要： An amplifying apparatus for linearly amplifying a desired signal using a pair of coupled non-linear amplifiers is disclosed. The amplifying apparatus comprises a limiter for separating amplitude variations from the desired signal and producing a constant amplitude signal bearing the phase of the desired signal and an amplitude related signal. In addition, a drive signal generater produces two drive signals each dependent on the constant amplitude signal and the amplitude related signal such that each drive signal depends on the phase of the desired signal and such that the sum of the squares of the amplitudes of the drive signals is constant. Finally, a coupler couples the two drive signals to produce two constant amplitude signals for driving the pair of non-linear power amplifiers and for coupling the outputs of the power amplifiers to produce two amplified output signals, one of which is the linearly amplified desired signal and the other of which is a waste energy signal.
摘要翻译：公开了一种使用一对耦合的非线性放大器线性放大所需信号的放大装置。放大装置包括用于将振幅变化与期望信号分离并产生承载所需信号和振幅相关信号的相位的恒定振幅信号的限幅器。此外，驱动信号发生器产生两个驱动信号，每个驱动信号依赖于恒定幅度信号和振幅相关信号，使得每个驱动信号取决于期望信号的相位，并且使得驱动器的振幅的平方和之和信号是恒定的。最后，耦合器将两个驱动信号耦合以产生两个恒定幅度信号，用于驱动一对非线性功率放大器并耦合功率放大器的输出以产生两个放大的输出信号，其中之一是线性放大的期望信号另一个是废能信号。

4. 发明授权

US5638024A Waste energy control and management in power amplifiers 失效
公开(公告)号：US5638024A
公开(公告)日：1997-06-10
申请号：US472662
申请日：1995-06-07
申请人： Paul W. Dent , Ross W. Lampe
发明人： Paul W. Dent , Ross W. Lampe
IPC分类号： H03F3/68 , H03F1/02 , H03F1/32 , H03F3/60 , H04B1/04 , H04B1/16 , H04B1/52 , H04B7/185
CPC分类号： H04B1/1607 , H03F1/0294 , H03F1/3229 , H03F1/3252 , H03F3/602 , H04B1/0483 , H04B1/52 , H04B1/04 , H04B2001/0433
摘要： An amplifying apparatus for linearly amplifying a desired signal using a pair of coupled non-linear amplifiers is disclosed. The amplifying apparatus comprises a limiter for separating amplitude variations from the desired signal and producing a constant amplitude signal bearing the phase of the desired signal and an amplitude related signal. In addition, a drive signal generater produces two drive signals each dependent on the constant amplitude signal and the amplitude related signal such that each drive signal depends on the phase of the desired signal and such that the sum of the squares of the amplitudes of the drive signals is constant. Finally, a coupler couples the two drive signals to produce two constant amplitude signals for driving the pair of non-linear power amplifiers and for coupling the outputs of the power amplifiers to produce two amplified output signals, one of which is the linearly amplified desired signal and the other of which is a waste energy signal.

5. 发明授权

US5568088A Waste energy control and management in power amplifier 失效
标题翻译：功率放大器废能量控制与管理
公开(公告)号：US5568088A
公开(公告)日：1996-10-22
申请号：US472247
申请日：1995-06-07
申请人： Paul W. Dent , Ross W. Lampe
发明人： Paul W. Dent , Ross W. Lampe
IPC分类号： H03F3/68 , H03F1/02 , H03F1/32 , H03F3/60 , H04B1/04 , H04B1/16 , H04B1/52 , H04B7/185
CPC分类号： H04B1/1607 , H03F1/0294 , H03F1/3229 , H03F1/3252 , H03F3/602 , H04B1/0483 , H04B1/52 , H04B1/04 , H04B2001/0433
摘要： An amplifying apparatus for linearly amplifying a desired signal using a pair of coupled non-linear amplifiers is disclosed. The amplifying apparatus comprises a limiter for separating amplitude variations from the desired signal and producing a constant amplitude signal bearing the phase of the desired signal and an amplitude related signal. In addition, a drive signal generater produces two drive signals each dependent on the constant amplitude signal and the amplitude related signal such that each drive signal depends on the phase of the desired signal and such that the sum of the squares of the amplitudes of the drive signals is constant. Finally, a coupler couples the two drive signals to produce two constant amplitude signals for driving the pair of non-linear power amplifiers and for coupling the outputs of the power amplifiers to produce two amplified output signals, one of which is the linearly amplified desired signal and the other of which is a waste energy signal.
摘要翻译：公开了一种使用一对耦合的非线性放大器线性放大所需信号的放大装置。放大装置包括用于将振幅变化与期望信号分离并产生承载所需信号和振幅相关信号的相位的恒定振幅信号的限幅器。此外，驱动信号发生器产生两个驱动信号，每个驱动信号依赖于恒定幅度信号和振幅相关信号，使得每个驱动信号取决于期望信号的相位，并且使得驱动器的振幅的平方和之和信号是恒定的。最后，耦合器将两个驱动信号耦合以产生两个恒定幅度信号，用于驱动一对非线性功率放大器并耦合功率放大器的输出以产生两个放大的输出信号，其中之一是线性放大的期望信号另一个是废能信号。

6. 发明授权

US5852772A Receiver IF system with active filters 失效
标题翻译：接收器IF系统带有源滤波器
公开(公告)号：US5852772A
公开(公告)日：1998-12-22
申请号：US804671
申请日：1997-02-25
申请人： Ross W. Lampe , John T. Gillette , Rodney A. Dolman , Antonio Montalvo
发明人： Ross W. Lampe , John T. Gillette , Rodney A. Dolman , Antonio Montalvo
IPC分类号： H03G3/20 , H03G3/30 , H04B1/10 , H04B1/26
CPC分类号： H03G3/3068
摘要： A high dynamic range receiver IF system using limited dynamic range IF filters is disclosed. A variable gain amplifier amplifies a first IF signal. The amplified first IF signal is then applied to an image suppression mixer for suppressing an image component of the amplified first IF signal to provide adequate image suppression for a radio system, wherein the image suppression mixer outputting an image suppressed second IF signal. An active bandpass filter then filters the unwanted components from the second IF signal. The filtered signal is then hard limited in a limiting amplifier which outputs a limited IF signal. A logarithmic detector then provides a received signal strength indicator.
摘要翻译：公开了使用有限动态范围IF滤波器的高动态范围接收机IF系统。可变增益放大器放大第一IF信号。放大的第一IF信号然后被施加到图像抑制混频器，用于抑制放大的第一IF信号的图像分量，以为无线电系统提供足够的图像抑制，其中图像抑制混频器输出图像抑制第二IF信号。有源带通滤波器然后从第二IF信号滤除不想要的分量。然后，在输出有限的IF信号的限幅放大器中，经滤波的信号被硬限制。对数检测器然后提供接收信号强度指示器。

7. 发明授权

US5568511A System and method for radio disconnect and channel access for digitized speech trunked radio systems 失效
标题翻译：用于数字化语音集群无线电系统的无线电断开和信道接入的系统和方法
公开(公告)号：US5568511A
公开(公告)日：1996-10-22
申请号：US935440
申请日：1992-08-26
申请人： Ross W. Lampe
发明人： Ross W. Lampe
IPC分类号： H04L5/16 , H04W4/10 , H04W84/08 , H04B3/36
CPC分类号： H04W84/08 , H04W4/10 , H04W76/005
摘要： In half-duplex, trunked digitized voice communications between mobile transceivers, the present invention minimizes time delays occurring after one transceiver ends a transmission and before other transceiver communications may commence. A disconnect signal is transmitted from the currently transmitting transceiver during a time frame immediately following indication that a current communication has ended. Channel access time delays are minimized by permitting speech input to a transmitting transceiver immediately upon receipt of a working communications channel. The present invention has particular applicability in trunked TDMA radio communication systems.
摘要翻译：在半双工中，移动收发器之间的中继数字化语音通信，本发明使在一个收发器结束传输之后并且在其它收发器通信可能开始之前发生的时间延迟最小化。在指示当前通信已经结束之后的紧接着的时间帧期间，从当前发送收发器发送断开信号。通过在接收到工作通信信道之后立即允许语音输入到发送收发信机，使信道接入时间延迟最小化。本发明在中继TDMA无线电通信系统中具有特别的适用性。

8. 发明授权

US5313173A Quadrature modulated phase-locked loop 失效
标题翻译：正交调制锁相环
公开(公告)号：US5313173A
公开(公告)日：1994-05-17
申请号：US51875
申请日：1993-04-26
申请人： Ross W. Lampe
发明人： Ross W. Lampe
IPC分类号： H03C3/09 , H03L7/16 , H03L7/22 , H03C3/00 , H03L7/081
CPC分类号： H03C3/0983 , H03C3/095 , H03C3/0975 , H03L7/16 , H03L7/22
摘要： A phase-locked loop incorporates a quadrature modulator for generating constant envelope phase or frequency modulation. Locating the quadrature modulator within the feedback loop or feeding the output signal of the quadrature modulator into the feedback loop permits accurate constant envelope phase modulation of the loop reference oscillator and completely suppresses undesired AM and PM components of the modulated signal.
摘要翻译：锁相环包括用于产生恒定包络相位或频率调制的正交调制器。在反馈环路内定位正交调制器或将正交调制器的输出信号馈送到反馈环路允许环路参考振荡器的精确恒定包络相位调制，并完全抑制调制信号的不需要的AM和PM分量。

9. 发明授权

US5966646A Dual-band radio receiver 失效
标题翻译：双频无线电接收机
公开(公告)号：US5966646A
公开(公告)日：1999-10-12
申请号：US855102
申请日：1997-05-13
申请人： Ross W. Lampe , Rodney A. Dolman
发明人： Ross W. Lampe , Rodney A. Dolman
IPC分类号： H03D7/16 , H03J5/24 , H04B1/26 , H04B17/02
CPC分类号： H04B1/006 , H03D7/163 , H03J5/244 , H04B1/005 , H04B1/26 , H03B2200/0048
摘要： A simplified structure is disclosed for a dual-band, double-conversion superheterodyne receiver. All mixer-injection signals are generated by combining the outputs of two phase-locked frequency synthesizers driven by a single reference oscillator. The output of one synthesizer injects the receiver's second mixer, which converts signals from the first intermediate frequency to the second intermediate frequency. The output of the other synthesizer has two uses: (1) it provides first mixer injection needed to tune the receiver to a primary band, and (2) it is mixed with the output of the first synthesizer to provide the first mixer injection needed to tune the receiver to an alternate band.
摘要翻译：公开了一种双频双转换超外差接收机的简化结构。通过组合由单个参考振荡器驱动的两个锁相频率合成器的输出来产生所有混频器注入信号。一个合成器的输出注入接收机的第二个混频器，它将信号从第一个中频转换成第二个中频。另一个合成器的输出有两个用途：（1）它提供了将接收机调谐到主要频带所需的第一个混合器注入，和（2）它与第一个合成器的输出混合，以提供第一个混合器注入，将接收机调谐到另一个频带。

10. 发明授权

US5633893A Digital modulation method with controlled envelope variation 失效
标题翻译：具有控制包络变化的数字调制方法
公开(公告)号：US5633893A
公开(公告)日：1997-05-27
申请号：US313599
申请日：1994-09-29
申请人： Ross W. Lampe , Jyun-chen Chen
发明人： Ross W. Lampe , Jyun-chen Chen
IPC分类号： H04L27/10 , H04L27/12 , H04L27/20 , H04K1/02
CPC分类号： H04L27/2003 , Y02B60/50
摘要： Continuous phase modulated (CPM) signals, such as quaternary CPFSK signals, are filtered to limit their bandwidth while simultaneously minimizing the amount of amplitude modulation and intersymbol interference introduced by this filtering process. By designing a modulation filter such as a finite impulse response (FIR) filter to add only a nominal, controlled amount of amplitude modulation, high efficiency, nonlinear power amplifiers may be employed to transmit the filtered CPFSK signals. Although the filter adds a small amount of amplitude modulation and intersymbol interference, digital signal processor-based receivers satisfactorily demodulate this type of signal using sequence estimation algorithms such as the Viterbi algorithm. Thus, the filtering of CPM signals permits narrowing of the transmitted signal spectrum while managing the intersymbol interference resulting from the controlled amount of amplitude modulation added by filtering. Narrowed bandwidth along with high efficiency, nonlinear power amplifiers make the present invention particularly well suited to narrowband mobile radio communications.
摘要翻译：对诸如四级CPFSK信号的连续相位调制（CPM）信号进行滤波以限制它们的带宽，同时最小化由该滤波过程引入的幅度调制和符号间干扰的量。通过设计诸如有限脉冲响应（FIR）滤波器的调制滤波器来仅增加额定的受控量的幅度调制，可以采用高效率的非线性功率放大器来传输经滤波的CPFSK信号。虽然滤波器增加了少量的幅度调制和码间干扰，但是基于数字信号处理器的接收机使用诸如维特比算法的序列估计算法令人满意地解调这种类型的信号。因此，CPM信号的滤波允许发送信号频谱的变窄，同时管理由通过滤波所加入的受控幅度调制量产生的符号间干扰。窄带宽以及高效率的非线性功率放大器使得本发明特别适合于窄带移动无线电通信。

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