公开(公告)号：US07656236B2

公开(公告)日：2010-02-02

申请号：US11803602

申请日：2007-05-15

Applicant: Anthony David Williams

Inventor： Anthony David Williams

IPC: H03L7/00

CPC classification number: H03L7/18 ,  H03L7/087 ,  H03L7/10

Abstract: A frequency synthesizer is disclosed. According to one embodiment, the frequency synthesizer includes an input terminal and an output terminal, a loop filter, a digital phase detector, and an analog phase detector. The digital phase detector includes a first input coupled to the input terminal, a second input coupled to the output terminal, and an output coupled to the loop filter, the digital phase detector is configured to operate at a first phase comparison frequency. The analog phase detector includes a first input coupled to the input terminal, a second input coupled to the output terminal, and an output alternating current (AC) coupled to the loop filter, the analog phase detector is configured to operate at a second phase comparison frequency. The first phase comparison frequency is different from the second phase comparison frequency.

Abstract translation: 公开了一种频率合成器。 根据一个实施例，频率合成器包括输入端子和输出端子，环路滤波器，数字相位检测器和模拟相位检测器。 数字相位检测器包括耦合到输入端的第一输入，耦合到输出端的第二输入和耦合到环路滤波器的输出，数字相位检测器被配置为在第一相位比较频率下工作。 模拟相位检测器包括耦合到输入端的第一输入，耦合到输出端的第二输入和耦合到环路滤波器的输出交流电（AC），模拟相位检测器被配置为在第二相位比较 频率。 第一相位比较频率与第二相位比较频率不同。

公开(公告)号：US20090074680A1

公开(公告)日：2009-03-19

申请号：US11909342

申请日：2006-03-23

Applicant: Paul Anderson ,  Jelena Kosoric ,  Ralph Anthony David Williams ,  Mark P. Hector

Inventor： Paul Anderson ,  Jelena Kosoric ,  Ralph Anthony David Williams ,  Mark P. Hector

IPC: A61K38/17 ,  A61P1/14 ,  C12P21/02 ,  C12N15/11

CPC classification number: C07K14/4723 ,  A61K38/00

Abstract: A synthetic statherin peptide of general formula (I) X1X2X3X4X5X6X7X8X9X10X11X12X13X14X15X16X17X18X19X20X21 as defined herein is provided. The peptide finds application in the treatment of dent disease, dry mouth syndrome and in the formulation of pharmaceutical preparation comprising the peptide.

Abstract translation: 提供了如本文所定义的通式（I）X1X2X3X4X5X6X7X8X9X10X11X12X13X14X15X16X17X18X19X20X21的合成星状肽。 该肽可用于治疗牙齿疾病，口干综合征和包含该肽的药物制剂的制剂中。

公开(公告)号：US20080284525A1

公开(公告)日：2008-11-20

申请号：US11803602

申请日：2007-05-15

Applicant: Anthony David Williams

Inventor： Anthony David Williams

IPC: H03L7/087

CPC classification number: H03L7/18 ,  H03L7/087 ,  H03L7/10

Abstract: A frequency synthesizer is disclosed. According to one embodiment, the frequency synthesizer includes an input terminal and an output terminal, a loop filter, a digital phase detector, and an analog phase detector. The digital phase detector includes a first input coupled to the input terminal, a second input coupled to the output terminal, and an output coupled to the loop filter, the digital phase detector configured to operate at a first phase comparison frequency. The analog phase detector included a first input coupled to the input terminal, a second input coupled to the output terminal, and an output alternating current (AC) coupled to the loop filter, the analog phase detector configured to operate at a second phase comparison frequency. The first phase comparison frequency is different from the second phase comparison frequency.

Abstract translation: 公开了一种频率合成器。 根据一个实施例，频率合成器包括输入端子和输出端子，环路滤波器，数字相位检测器和模拟相位检测器。 数字相位检测器包括耦合到输入端的第一输入，耦合到输出端的第二输入和耦合到环路滤波器的输出，数字相位检测器被配置为在第一相位比较频率下操作。 模拟相位检测器包括耦合到输入端的第一输入，耦合到输出端的第二输入和耦合到环路滤波器的输出交流电（AC），模拟相位检测器被配置为在第二相位比较频率 。 第一相位比较频率与第二相位比较频率不同。

公开(公告)号：US6052568A

公开(公告)日：2000-04-18

申请号：US138851

申请日：1998-08-24

Applicant: Anthony David Williams

Inventor： Anthony David Williams

IPC: H04B7/185 ,  H04B1/04

CPC classification number: H04B7/18517

Abstract: An apparatus and method for efficiently implementing a satellite transceiver system comprises a digital signal processor for providing input signals to a transmitter, a vector modulator for generating a modulated signal from the input signals, and an output amplifier for amplifying the modulated signal to produce a transmit signal. The invention also includes an attenuator that samples the transmit signal to generate an error signal, a mixer that downconverts the error signal to produce a downconverted error signal, a feedback vector demodulator that demodulates the downconverted error signal to generate result signals that contain error information pertaining to the transmit signal. The digital signal processor may then compare the result signals with the input signals to responsively alter the input signals, and thereby correct for distortion in the transmit signal.

Abstract translation: 一种用于有效实施卫星收发器系统的装置和方法，包括用于向发射机提供输入信号的数字信号处理器，用于从输入信号产生调制信号的矢量调制器，以及用于放大调制信号以产生发射 信号。 本发明还包括对发射信号进行采样以产生误差信号的衰减器，对误差信号进行下变频以产生下变频误差信号的混频器，解调下变频误差信号以产生包含相关错误信息的结果信号的反馈矢量解调器 发送信号。 然后，数字信号处理器可以将结果信号与输入信号进行比较，以响应地改变输入信号，从而校正发送信号中的失真。

公开(公告)号：US07038507B2

公开(公告)日：2006-05-02

申请号：US10713717

申请日：2003-11-14

Applicant: Anthony David Williams

Inventor： Anthony David Williams

IPC: H03L7/06

CPC classification number: H03L7/107 ,  H03L7/085 ,  H03L7/087 ,  H03L7/093 ,  H03L7/183

Abstract: A frequency synthesizer is disclosed. According to one embodiment, the frequency synthesizer includes a phase locked loop (PLL) having an analog mixer phase detector and an auxiliary digital frequency detector coupled to the phase locked loop. The PLL may include a programmable divider having an input terminal responsive to an output signal of the frequency synthesizer and having an output terminal coupled to an input terminal of the analog mixer phase detector, a loop filter having an input terminal coupled to an output terminal of the analog mixer phase detector, and a voltage controlled oscillator having a control terminal coupled to an output terminal of the loop filter. The programmable divider may include a direct digital synthesizer.

Abstract translation: 公开了一种频率合成器。 根据一个实施例，频率合成器包括具有耦合到锁相环的模拟混频器相位检测器和辅助数字频率检测器的锁相环（PLL）。 PLL可以包括可编程分频器，其具有响应于频率合成器的输出信号的输入端，并且具有耦合到模拟混频器相位检测器的输入端的输出端，环路滤波器，具有耦合到输出端的输出端 模拟混频器相位检测器和具有耦合到环路滤波器的输出端子的控制端子的压控振荡器。 可编程分频器可以包括直接数字合成器。

公开(公告)号：US5898906A

公开(公告)日：1999-04-27

申请号：US738607

申请日：1996-10-29

Applicant: Anthony David Williams

Inventor： Anthony David Williams

IPC: H03C3/09 ,  H03C3/40 ,  H03D7/16 ,  H04B1/40

CPC classification number: H04B1/405 ,  H03C3/0908 ,  H03C3/40 ,  H03D7/163

Abstract: A system and method for implementing a cellular radio transmitter device comprises a first oscillator device for generating a first oscillator output signal, a second oscillator device for generating a second oscillator output signal, a power amplifier for amplifying the second oscillator output signal to obtain a transmit signal, a mixer device for combining the first oscillator output signal and the transmit signal to produce a mixer output signal, a phase comparator for comparing the mixer output signal and a transmitter input signal and responsively generating a control signal to control the transmit oscillator, and a feedback path for adding the mixer output signal to the transmitter input signal to compensate for distortion present in the transmit signal.

Abstract translation: 用于实现蜂窝无线电发射机设备的系统和方法包括：用于产生第一振荡器输出信号的第一振荡器装置，用于产生第二振荡器输出信号的第二振荡器装置，用于放大第二振荡器输出信号以获得发射 信号，用于组合第一振荡器输出信号和发射信号以产生混频器输出信号的混频器装置，用于比较混频器输出信号和发射机输入信号并响应地产生控制信号以控制发射振荡器的相位比较器，以及 用于将混频器输出信号添加到发射机输入信号以补偿存在于发射信号中的失真的反馈路径。