公开(公告)号：US08086225B2

公开(公告)日：2011-12-27

申请号：US11876075

申请日：2007-10-22

Applicant: Wayne S. Lee

Inventor： Wayne S. Lee

IPC: H04M3/20

CPC classification number: H04B1/0475 ,  H04B1/0053

Abstract: Methods and apparatus for controlling events, timing and operational characteristics of wireless communications devices. An exemplary wireless communications apparatus comprises a baseband processor, radio frequency (RF) generating circuitry, a programmable event controller, and a memory device. The RF generating circuitry and programmable event controller are integrated in the same integrated circuit. The memory device, which may also be embedded in the same integrated circuit as the event controller and RF generating circuitry, is configured to store a sequence of instructions the event controller executes in response to a baseband command. The memory device is also configured to store control parameter data, which the event controller retrieves and uses to enable, disable, select and deselect various devices on the integrated circuit and to set, adjust or modify the operational characteristics of the RF generating circuitry (e.g., band selection and tuning) and other circuitry (e.g., power control circuitry) of the communications apparatus.

Abstract translation: 用于控制无线通信设备的事件，定时和操作特性的方法和装置。 示例性无线通信装置包括基带处理器，射频（RF）生成电路，可编程事件控制器和存储器件。 RF产生电路和可编程事件控制器集成在同一集成电路中。 也可以嵌入在与事件控制器和RF产生电路相同的集成电路中的存储器件被配置为存储事件控制器响应于基带命令执行的指令序列。 存储器设备还被配置为存储控制参数数据，事件控制器检索并使用它来启用，禁用，选择和取消选择集成电路上的各种设备，并且设置，调整或修改RF生成电路的操作特性（例如， ，频带选择和调谐）和通信装置的其他电路（例如，功率控制电路）。

公开(公告)号：US20110305292A1

公开(公告)日：2011-12-15

申请号：US12814817

申请日：2010-06-14

Applicant: Toru Matsuura ,  Kenichi Mori ,  Wayne S. Lee

Inventor： Toru Matsuura ,  Kenichi Mori ,  Wayne S. Lee

IPC: H04L27/02 ,  H04L25/40

CPC classification number: H04L25/03834

Abstract: A nonlinear filter includes: a determination unit that determines, based on I and Q signals inputted into the determination unit, whether or not to perform pulse insertion; a rotation detector that detects a rotation direction of the I and Q signals on an IQ plane with respect to the origin of the IQ plane; a pulse generator that generates, when the determination unit determines to perform the pulse insertion, a pulse of which at least one of the direction and the magnitude is determined in accordance with at least the detected rotation direction; and an adder that inserts the pulse into the I and Q signals and outputs resultant I and Q signals.

Abstract translation: 非线性滤波器包括：确定单元，其基于输入到确定单元的I和Q信号来确定是否执行脉冲插入; 旋转检测器，其相对于IQ平面的原点检测IQ平面上的I和Q信号的旋转方向; 脉冲发生器，当确定单元确定执行脉冲插入时，至少根据检测到的旋转方向确定至少一个方向和幅度的脉冲; 以及将脉冲插入I和Q信号并输出​​合成的I和Q信号的加法器。

公开(公告)号：US20110305171A1

公开(公告)日：2011-12-15

申请号：US12813407

申请日：2010-06-10

Applicant: Toru Matsuura ,  Kenichi Mori ,  Wayne S. Lee ,  Akihiko Matsuoka

Inventor： Toru Matsuura ,  Kenichi Mori ,  Wayne S. Lee ,  Akihiko Matsuoka

IPC: H04B7/005 ,  H03L7/00 ,  H03C3/38

CPC classification number: H04B7/01 ,  H03C5/00 ,  H04B1/0483 ,  H04L7/033

Abstract: A transmission circuit that performs modulation based on a phase difference signal and an amplitude signal includes an asymmetrical phase rotation device. The asymmetrical phase rotation device performs an operation of subtracting 2π from a value of the phase difference signal when the value of the phase difference signal is greater than a predetermined positive threshold value, or an operation of adding 2π to the value of the phase difference signal when the value of the phase difference signal is less than a predetermined negative threshold value. Accordingly, the transmission circuit has distortion reduction characteristics improved uniformly over a range of frequencies higher or lower than a carrier wave band.

Abstract translation: 基于相位差信号和幅度信号进行调制的发送电路包括非对称相位旋转装置。 非对称相位旋转装置执行减去2＆pgr的操作; 当相位差信号的值大于预定的正阈值时的相位差信号的值，或者加上2＆pgr的操作; 当相位差信号的值小于预定的负阈值时相位差信号的值。 因此，发送电路具有在比载波频率高或低的频率范围内均匀地改善的失真减小特性。

公开(公告)号：US07991366B2

公开(公告)日：2011-08-02

申请号：US12123611

申请日：2008-05-20

Applicant: Wayne S. Lee

Inventor： Wayne S. Lee

IPC: H03C1/52 ,  H04B1/04

CPC classification number: H03M1/661 ,  H04B1/0483

Abstract: Methods and apparatus for reconstructing discrete-time amplitude modulation signals in polar modulation transmitters. An exemplary polar modulation transmitter includes a symbol generator, a rectangular-to-polar converter, a peak phase detector, and an amplitude modulation reconstruction circuit. The symbol generator generates rectangular-coordinate modulation symbols from which the rectangular-to-polar converter generates an amplitude modulation signal containing discrete-time amplitude samples and an angle modulation signal containing discrete-time angle samples. The peak phase detector circuit detects phase reversals or near phase reversals represented in samples of the angle modulation signal. The amplitude modulation reconstruction circuit responds by reconstructing samples in the amplitude modulation signal that correspond to detected phase reversals or a near phase reversals represented in samples of the angle modulation signal.

Abstract translation: 用于重建极地调制发射机中的离散时间幅度调制信号的方法和装置。 示例性极性调制发射机包括符号发生器，矩形到极化转换器，峰值相位检测器和幅度调制重构电路。 符号发生器产生矩形坐标调制符号，矩形到极化转换器从该矩阵到极化转换器产生包含离散时间振幅采样的幅度调制信号和包含离散时间角采样的角度调制信号。 峰值相位检测器电路检测在角度调制信号的采样中表示的相位反转或近相位反转。 幅度调制重建电路通过重构在调幅信号中对应于检测到的相位反转的样本或在角度调制信号的采样中表示的近相反转来进行响应。

公开(公告)号：US07792213B1

公开(公告)日：2010-09-07

申请号：US11823053

申请日：2007-06-25

Applicant: Wayne S. Lee

Inventor： Wayne S. Lee

IPC: H04K1/02

CPC classification number: H04L27/362

Abstract: Embodiments of a multi-point push-out method are disclosed for a more accurate adjustment of minimum IQ values in order to maintain better continuity in the IQ trajectory for sampled IQ values near the origin. IQ trajectories near the origin are limited to a minimum IQ value by determining a specific scaling factor according to a position of the sampled IQ value relative to the origin and/or to the minimum IQ value. The minimum IQ value is also referred to as a threshold boundary value.

Abstract translation: 公开了多点推出方法的实施例，以便更精确地调整最小IQ值，以便在原点附近的采样IQ值保持IQ轨迹的更好的连续性。 通过根据采样的IQ值相对于原点和/或最小IQ值的位置确定特定比例因子，将原点附近的IQ轨迹限制在最小IQ值。 最小IQ值也称为阈值边界值。

公开(公告)号：US07042958B2

公开(公告)日：2006-05-09

申请号：US10454906

申请日：2003-06-04

Applicant: Thomas E. Biedka ,  Wayne S. Lee ,  Gary L. Do

Inventor： Thomas E. Biedka ,  Wayne S. Lee ,  Gary L. Do

IPC: H04K1/02

CPC classification number: H04L27/361 ,  H03C5/00

Abstract: Methods of and apparatus for digitally controlling, with sub-sample resolution, the relative timing of the magnitude and phase paths in a polar modulator. The timing resolution is limited by the dynamic range of the system as opposed to the sample rate. The methods and apparatus of the invention use a digital filter to approximate a sub-sample time delay. Various techniques for approximating a sub-sample time delay using digital signal processing may be used to achieve the approximation. Ideally, the filter will have an all-pass magnitude response and a linear phase response. In practice, the magnitude may be low-pass and the phase may not be perfectly linear. Such deviation from the ideal response will introduce some distortion. However, this distortion may be acceptably small depending on the particular signal being processed.

Abstract translation: 利用子样本分辨率数字控制的方法和装置，极坐标调制器中的幅度和相位路径的相对定时。 定时分辨率受系统动态范围的限制，而不是采样率。 本发明的方法和装置使用数字滤波器近似子采样时间延迟。 可以使用用于使用数字信号处理近似子采样时间延迟的各种技术来实现近似。 理想情况下，滤波器将具有全通幅度响应和线性相位响应。 实际上，幅度可能是低通，相位可能不是完全线性的。 这种偏离理想的反应会引入一些失真。 然而，根据正在处理的特定信号，该失真可能是可接受的。

公开(公告)号：US08077770B2

公开(公告)日：2011-12-13

申请号：US12123772

申请日：2008-05-20

Applicant: Wayne S. Lee ,  Tony L. Wong

Inventor： Wayne S. Lee ,  Tony L. Wong

IPC: H04B1/66

CPC classification number: H04B1/662 ,  H04L27/36 ,  H04L27/361 ,  H04L27/367

Abstract: Methods and apparatus for reducing the bandwidth of modulation signals in a phase path of a polar modulation transmitter. An exemplary method includes generating a phase difference modulation signal for a phase path of a polar modulation transmitter, and filtering the phase difference modulation signal using a linear-phase filter. Filtering the phase difference modulation signal may be performed by first detecting samples in the phase difference modulation signal that have phase difference values in excess of a phase difference threshold and then filtering samples in the vicinity of the threshold-violating samples to remove the threshold-violating events. Alternatively, all samples may be filtered, i.e., without regard as to whether any given sample exceeds a phase difference threshold, to remove large phase difference changes in the phase difference modulation signal, or a combination of linear-phase and nonlinear filters may be used to remove the large phase difference changes.

Abstract translation: 用于降低极性调制发射机的相位路径中的调制信号的带宽的方法和装置。 一种示例性方法包括产生用于极性调制发射机的相位路径的相位差调制信号，并使用线性相位滤波器对相位差调制信号进行滤波。 滤波相位差调制信号可以通过首先检测相位差调制信号中具有超过相位差阈值的相位差值的样本，然后在阈值违反样本附近过滤样本以消除阈值违反 事件 或者，可以对所有样本进行滤波，即，不考虑任何给定样本是否超过相位差阈值，以消除相位差调制信号中的大的相位差变化，或者可以使用线性相位和非线性滤波器的组合 去除大的相位差变化。

公开(公告)号：US20100081397A1

公开(公告)日：2010-04-01

申请号：US12242255

申请日：2008-09-30

Applicant: Wayne S. Lee ,  Tony L. Wong

Inventor： Wayne S. Lee ,  Tony L. Wong

IPC: H04B1/02

CPC classification number: H04B1/0475 ,  H03F1/3241 ,  H03F1/3282 ,  H04B2001/0425

Abstract: A polar modulation transmitter includes an amplitude modulation (AM) path with an amplitude modulation to amplitude modulation (AM/AM′) correction circuit and a phase modulation (PM) path with a delay element and an amplitude modulation to phase modulation (AM′/PM) correction circuit. The AM/AM′ correction circuit receives and predistorts a digital amplitude component signal depending on amplitudes of samples in the digital amplitude component signal, thereby generating a predistorted digital amplitude component signal. The delay element receives and delays a digital phase component signal, to generate a delayed digital phase component signal having a delay corresponding to the latency introduced by the AM/AM′ correction circuit. The AM′/PM correction circuit predistorts the delayed digital phase component signal depending on amplitudes of samples in the predistorted amplitude component signal, thereby generating a predistorted digital phase component signal.

Abstract translation: 极坐标调制发射机包括具有幅度调制到幅度调制（AM / AM'）校正电路的幅度调制（AM）路径和具有延迟元件的相位调制（PM）路径和对相位调制（AM' PM）校正电路。 AM / AM'校正电路根据数字幅度分量信号中的样本的幅度接收数字幅度分量信号并预取数据，从而产生预失真的数字振幅分量信号。 延迟元件接收并延迟数字相位分量信号，以产生具有与由AM / AM'校正电路引入的等待时间相对应的延迟的延迟的数字相位分量信号。 AM'/ PM校正电路根据预失真振幅分量信号中的样本的幅度预测延迟的数字相位分量信号，由此产生预失真的数字相位分量信号。

公开(公告)号：US20090295493A1

公开(公告)日：2009-12-03

申请号：US12131417

申请日：2008-06-02

Applicant: Wayne S. Lee ,  Akira Kato ,  Toru Matsuura

Inventor： Wayne S. Lee ,  Akira Kato ,  Toru Matsuura

IPC: H03C3/00 ,  G01R23/00

CPC classification number: H03C3/0941 ,  H03C3/08 ,  H03C3/095 ,  H03C3/0975 ,  H03C3/0991 ,  H03C5/00

Abstract: A self-calibrating modulator apparatus includes a modulator having a controlled oscillator and an oscillator gain calibration circuit. The oscillator gain calibration circuit includes an oscillator gain coefficient calculator configured to calculate a plurality of frequency dependent oscillator gain coefficients from results of measurements taken at the output of the controlled oscillator in response to a test pattern signal representing a plurality of different reference frequencies. The plurality of frequency dependent gain coefficients determined from the calibration process are stored in a look up table (LUT), where they are made available after the calibration process ends to scale a modulation signal applied to the modulator. By scaling the modulation signal prior to it being applied to the control input of the controlled oscillator, the nonlinear response of the controlled oscillator is countered and the modulation accuracy of the modulator is thereby improved.

Abstract translation: 自校准调制器装置包括具有受控振荡器和振荡器增益校准电路的调制器。 振荡器增益校准电路包括振荡器增益系数计算器，其被配置为响应于表示多个不同参考频率的测试模式信号，从受控振荡器的输出处获得的测量结果计算多个频率相关振荡器增益系数。 从校准过程确定的多个与频率相关的增益系数被存储在查找表（LUT）中，在校准过程结束之后它们可用以缩放施加到调制器的调制信号。 通过在将调制信号应用于受控振荡器的控制输入之前缩放调制信号，可以对受控振荡器的非线性响应进行调整，从而提高调制器的调制精度。

公开(公告)号：US07518461B1

公开(公告)日：2009-04-14

申请号：US11713266

申请日：2007-02-28

Applicant: Earl W. McCune ,  Wayne S. Lee

Inventor： Earl W. McCune ,  Wayne S. Lee

IPC: H03C3/38

CPC classification number: H03C5/00

Abstract: A polar-based modulator includes an amplitude signal generator operating at a set gain and a command module that selects an appropriate one parameter lookup table based on an identification of the current network communication system. The command module receives a digital representation of the desired amplitude and using the received digital amplitude and selected parameter lookup table determines control commands used by a scalar to appropriately modulate an amplitude modulated signal output from the amplitude signal generator. Use of the parameter lookup table and command module in the digital realm eliminates the complexities of comparable functionality in the analog realm. Further, operating the amplitude signal generator at a set gain and scaling the output eliminates the complexities associated with generating an appropriately amplified signal within the amplitude signal generator and improves the overall efficiency for generating such an amplitude modulated signal.

Abstract translation: 基于极点的调制器包括以设定增益工作的幅度信号发生器和基于当前网络通信系统的识别来选择适当的一个参数查找表的命令模块。 命令模块接收所需幅度的数字表示，并使用接收到的数字振幅，并且所选择的参数查找表确定由标量使用的控制命令，以适当地调制从振幅信号发生器输出的幅度调制信号。 在数字领域使用参数查找表和命令模块可以消除模拟领域中相当的功能的复杂性。 此外，以设定的增益操作幅度信号发生器并缩放输出消除了与振幅信号发生器内产生适当放大的信号相关联的复杂度，并提高了用于产生这种幅度调制信号的整体效率。