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1. 发明授权

US06463110B1 Timing synchronization in a communication device 有权
标题翻译：通信设备中的定时同步
公开(公告)号：US06463110B1
公开(公告)日：2002-10-08
申请号：US09813708
申请日：2001-03-21
申请人： William J. Rinderknecht , Anthony R. Schooler , Kevin M. Andrews , Yun Kim
发明人： William J. Rinderknecht , Anthony R. Schooler , Kevin M. Andrews , Yun Kim
IPC分类号： H04L700
CPC分类号： H04L7/0029 , H03H17/0286 , H03H17/0294 , H03H17/06 , H03H2017/0245 , H03H2218/12
摘要： A method for performing timing synchronization between digital input data and a system clock in a communication device includes providing a system clock rate that is higher than a data clock rate and sampling the input data at intervals in the system clock periods within the data clock period. The method includes adjusting the timing between the digital input data and the system clock by either shortening the number of system clock periods and sampling intervals, or lengthening the number of system clock periods and sampling the input data at normal intervals and providing data insertion to fill one of the extra system clock periods, such that more data samples are provided in the data clock period.
摘要翻译：一种用于在通信设备中的数字输入数据和系统时钟之间执行定时同步的方法包括：提供高于数据时钟速率的系统时钟速率，并且在数据时钟周期内的系统时钟周期内以间隔采样输入数据。该方法包括通过缩短系统时钟周期和采样间隔的数量来调整数字输入数据和系统时钟之间的定时，或延长系统时钟周期数，并以正常间隔对输入数据进行采样，并提供数据插入以填充一个额外的系统时钟周期，使得在数据时钟周期中提供更多的数据样本。

2. 发明授权

US07689217B2 Radio receiver having a multi-state variable threshold automatic gain control (AGC) for fast channel scanning acquisition and mehtod for using same 有权
标题翻译：具有用于快速信道扫描采集的多状态可变阈值自动增益控制（AGC）的无线电接收机及其使用方法
公开(公告)号：US07689217B2
公开(公告)日：2010-03-30
申请号：US11694697
申请日：2007-03-30
申请人： Charles R. Ruelke , William J. Rinderknecht
发明人： Charles R. Ruelke , William J. Rinderknecht
IPC分类号： H04Q7/20
CPC分类号： H03G3/3068
摘要： A radio receiver (300) having a multi-state variable threshold automatic gain control (AGC) for fast channel scanning acquisition includes an amplifier (303) having an automatic gain control (AGC) for controlling the gain of a receiver analog signal. An analog-to-digital converter (ADC) (311) is used for converting the receiving analog signal to a digital signal while a digital signal processor (DSP) (325) operates to process the digital signal. A signal magnitude estimator (315) in an AGC controller (313) provides a signal strength estimate of the received signal. The AGC controller (313) then sets the receiver amplifier (303) for an open-loop AGC operational mode and sets a first threshold for triggering an interrupt service request (ISR). This ISR is provided the DSP (325) and the host processor (327) if a radio frequency (RF) signal is detected above a first threshold during a priority scan of a priority channel to minimize interruptions in audio during priority scan.
摘要翻译：具有用于快速信道扫描获取的多状态可变阈值自动增益控制（AGC）的无线电接收机（300）包括具有用于控制接收机模拟信号的增益的自动增益控制（AGC）的放大器（303）。当数字信号处理器（DSP）（325）操作以处理数字信号时，模数转换器（ADC）（311）用于将接收模拟信号转换为数字信号。 AGC控制器（313）中的信号幅度估计器（315）提供接收信号的信号强度估计。然后，AGC控制器（313）将接收机放大器（303）设置为开环AGC操作模式，并设置触发中断服务请求（ISR）的第一阈值。如果在优先级信道的优先扫描期间检测到高于第一阈值的射频（RF）信号，则在最优化扫描期间最小化音频中断，则该ISR被提供给DSP（325）和主机处理器（327）。

3. 发明授权

US06606044B2 Method and apparatus for generating a pulse width modulated signal 有权
标题翻译：用于产生脉宽调制信号的方法和装置
公开(公告)号：US06606044B2
公开(公告)日：2003-08-12
申请号：US10034909
申请日：2002-01-02
申请人： William J. Roeckner , Pallab Midya , Poojan A. Wagh , William J. Rinderknecht
发明人： William J. Roeckner , Pallab Midya , Poojan A. Wagh , William J. Rinderknecht
IPC分类号： H03M300
CPC分类号： H03F3/2175 , H03F2200/331 , H03M1/822 , H03M5/08
摘要： A method and apparatus for a pulse width modulated (PWM) signal (30, 130) is provided. The input is a digital signal which is a modulated signal (24, 124). In the illustrated form, the modulated input signal is either a PDM signal or a PCM signal. In one embodiment of the present invention a PCM to PWM converter (16, 116) includes correction of duty ratio circuitry (48). The methodology used may include recursion on the values obtained after prediction, interpolation, and correction. The digital to analog conversion system (10) uses a PDM to PWM converter (20) which operates in an all digital domain and includes no analog circuitry.
摘要翻译：提供了一种用于脉宽调制（PWM）信号（30,130）的方法和装置。输入是作为调制信号（24,124）的数字信号。在所示的形式中，调制输入信号是PDM信号或PCM信号。在本发明的一个实施例中，PCM至PWM转换器（16,116）包括占空比电路（48）的校正。所使用的方法可以包括在预测，插值和校正之后获得的值的递归。数模转换系统（10）使用PDM到PWM转换器（20），其在全数字域中工作，并且不包括模拟电路。

4. 发明申请

US20080240312A1 RADIO RECEIVER HAVING A MULTI-STATE VARIABLE THRESHOLD AUTOMATIC GAIN CONTROL (AGC) FOR FAST CHANNEL SCANNING ACQUISITION AND METHOD FOR USING SAME 有权
标题翻译：具有用于快速通道扫描采集的多状态可变阈值自动增益控制（AGC）的无线电接收器及其使用方法
公开(公告)号：US20080240312A1
公开(公告)日：2008-10-02
申请号：US11694697
申请日：2007-03-30
申请人： Charles R. Ruelke , William J. Rinderknecht
发明人： Charles R. Ruelke , William J. Rinderknecht
IPC分类号： H04L27/08
CPC分类号： H03G3/3068
摘要： A radio receiver (300) having a multi-state variable threshold automatic gain control (AGC) for fast channel scanning acquisition includes an amplifier (303) having an automatic gain control (AGC) for controlling the gain of a receiver analog signal. An analog-to-digital converter (ADC) (311) is used for converting the receiving analog signal to a digital signal while a digital signal processor (DSP) (325) operates to process the digital signal. A signal magnitude estimator (315) in an AGC controller (313) provides a signal strength estimate of the received signal. The AGC controller (313) then sets the receiver amplifier (303) for an open-loop AGC operational mode and sets a first threshold for triggering an interrupt service request (ISR). This ISR is provided the DSP (325) and the host processor (327) if a radio frequency (RF) signal is detected above a first threshold during a priority scan of a priority channel to minimize interruptions in audio during priority scan.
摘要翻译：具有用于快速信道扫描获取的多状态可变阈值自动增益控制（AGC）的无线电接收机（300）包括具有用于控制接收机模拟信号的增益的自动增益控制（AGC）的放大器（303）。当数字信号处理器（DSP）（325）操作以处理数字信号时，模数转换器（ADC）（311）用于将接收模拟信号转换为数字信号。 AGC控制器（313）中的信号幅度估计器（315）提供接收信号的信号强度估计。然后，AGC控制器（313）将接收机放大器（303）设置为开环AGC操作模式，并设置触发中断服务请求（ISR）的第一阈值。如果在优先级信道的优先扫描期间检测到高于第一阈值的射频（RF）信号，则在最优化扫描期间最小化音频中断，则该ISR被提供给DSP（325）和主机处理器（327）。

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