公开(公告)号：US06535735B2

公开(公告)日：2003-03-18

申请号：US09814921

申请日：2001-03-22

申请人： Paul A. Underbrink ,  Daryush Shamlou ,  Ricke W. Clark ,  Joseph H. Colles ,  Guangming Yin ,  Patrick D. Ryan ,  Kelly H. Hale

发明人： Paul A. Underbrink ,  Daryush Shamlou ,  Ricke W. Clark ,  Joseph H. Colles ,  Guangming Yin ,  Patrick D. Ryan ,  Kelly H. Hale

IPC分类号： H04Q720

CPC分类号： G06F1/3203 ,  G06F1/324 ,  G06F1/3296 ,  Y02D10/126 ,  Y02D10/172

摘要： Modern digital integrated circuits are commonly synchronized in their workings by clock circuits. The clock frequency for a circuit must take into account the propagation delay of signals within the critical path of the circuit. If the clock time is not adequate to allow propagation of signals through the critical path, improper circuit operation may result. The propagation delay is not a constant from circuit to circuit, and even in a single circuit may change due to temperature, power supply voltage and the like. Commonly, this variation is handled by assuming a worse case propagation delay of the critical path, and then designing the clock frequency and minimum power supply voltage of the circuit so that the circuit will function under worst case conditions. However, instead of assuming a worse case propagation delay of the critical path, the propagation delay may be measured in an actual circuit path that has been constructed to be the equivalent to, or slightly worse than, the propagation delay of the critical path. By knowing the actual worst case propagation delay, the circuit may be modified to operate with lower power supply voltages, conserving power and/or to controlling the frequency of the clock, so that the clock may be operated at or near the circuit's actual, not theoretical worst case limit. Such modifications of power supply voltage and/or clock frequency may occur during circuit operation and thus, adapt the circuit to the different operating parameters of each circuit.

公开(公告)号：US07672361B2

公开(公告)日：2010-03-02

申请号：US10870673

申请日：2004-06-16

申请人： Paul A. Underbrink ,  Steven A. Gronemyer

发明人： Paul A. Underbrink ,  Steven A. Gronemyer

IPC分类号： H04B1/00

CPC分类号： H04B1/7093 ,  H04L2027/0028 ,  H04L2027/0046

摘要： Implementation of an improved matched filter system for despreading a PN code from a spread spectrum signal utilizes a matched filter system that may be broadly conceptualized as a system that optimizes the number of multipliers and adders utilized by the system in despreading a PN code from a spread spectrum signal. This lowers the power consumption of the improved matched filter system and increases the speed at which the system despreads the PN code from the spread spectrum signal.

摘要翻译： 用于从扩展频谱信号中解扩PN码的改进的匹配滤波器系统的实现使用匹配滤波器系统，该匹配滤波器系统可以被广泛地概念化为一种系统，其优化系统使用的乘法器和加法器的数量，以从扩展中解扩PN码 频谱信号。 这降低了改进的匹配滤波器系统的功耗，并且增加了系统从扩频信号中解扩PN码的速度。

公开(公告)号：US07546423B2

公开(公告)日：2009-06-09

申请号：US10874637

申请日：2004-06-22

申请人： Paul A. Underbrink ,  Henry Falk

发明人： Paul A. Underbrink ,  Henry Falk

IPC分类号： G06F13/16 ,  H04B1/00 ,  H04B7/00

CPC分类号： G01S19/37

摘要： A signal processing system control method and apparatus are described. Various embodiments include a signal processing system with multiple subsystems. A method for controlling the signal processing system includes storing channel records in a designated area of shared memory. Channel records include channel data that include one of multiple discrete signals to be processed by multiple subsystems in a time-multiplexed manner. The channel record includes information used by the multiple subsystems to process a channel, including information used to configure the multiple subsystems, information used to allocate the shared memory, and information used to communicate between multiple subsystems.

摘要翻译： 描述信号处理系统控制方法和装置。 各种实施例包括具有多个子系统的信号处理系统。 用于控制信号处理系统的方法包括将频道记录存储在共享存储器的指定区域中。 信道记录包括信道数据，其包括多个子系统以时间复用方式处理的多个离散信号之一。 信道记录包括多个子系统用于处理信道的信息，包括用于配置多个子系统的信息，用于分配共享存储器的信息，以及用于在多个子系统之间进行通信的信息。

公开(公告)号：US07082292B2

公开(公告)日：2006-07-25

申请号：US10658185

申请日：2003-09-09

申请人： Paul A. Underbrink

发明人： Paul A. Underbrink

IPC分类号： H04Q7/20

CPC分类号： H04B1/3805 ,  G01S19/235 ,  H03J1/005 ,  H03J2200/09 ,  H03J2200/11 ,  H03L7/081 ,  H03L7/1976 ,  H04B1/403

摘要： A mobile communications device using a common oscillator for communication and global positioning system (GPS) functions. In one embodiment, a communications unit receives a precision carrier frequency signal from a source and generates a reference signal that is used to calibrate a common oscillator.

摘要翻译： 一种使用公共振荡器进行通信和全球定位系统（GPS）功能的移动通信设备。 在一个实施例中，通信单元从源接收精确载波频率信号，并产生用于校准公共振荡器的参考信号。

公开(公告)号：US06788655B1

公开(公告)日：2004-09-07

申请号：US09552469

申请日：2000-04-18

申请人： Paul A. Underbrink

发明人： Paul A. Underbrink

IPC分类号： H04J306

CPC分类号： H04B1/707 ,  H04B2201/70715

摘要： The invention is directed to a personal communications device with a ratio counter providing tracking transitioning edges of two clocks so as to generate a signal to initiate capture of a clock cycle count. Provisions for tracking the transitioning edges include a storage memory for storing a first and a second value selected in accordance with the principles of convergents of continued fractions. A first and second counter each responding to first and second clock signal, respectively. The first and second counter each count clock cycles of the respective clock signal. A first register for capturing the count of the first counter and a second register for capturing the count of the second counter.

摘要翻译： 本发明涉及具有比例计数器的个人通信设备，其提供两个时钟的跟踪转变边缘，以便产生信号以开始捕获时钟周期计数。 用于跟踪过渡边缘的规定包括用于存储根据连续分数的收敛原则选择的第一和第二值的存储存储器。 第一和第二计数器分别响应于第一和第二时钟信号。 第一和第二计数器每个计数各个时钟信号的时钟周期。 用于捕获第一计数器的计数的第一寄存器和用于捕获第二计数器的计数的第二寄存器。

公开(公告)号：US06650879B1

公开(公告)日：2003-11-18

申请号：US09551060

申请日：2000-04-18

申请人： Paul A. Underbrink

发明人： Paul A. Underbrink

IPC分类号： H04Q720

CPC分类号： H03L7/081 ,  G01S19/235 ,  H03L7/1976

摘要： The invention is directed to a personal telecommunications device having both global positioning systems (GPS) and telecommunications provisions which share a common clock source. GPS provisions include a feedback loop for controlling an oscillator that generates a GPS system signal based upon the common clock signal. The feedback loop includes a frequency synthesizer for generating a feedback control signal, a phase comparator for generating a control signal in accordance with the feedback signal and the common clock signal, and a loop filter for processing and outputting the control signal to the oscillator to control the frequency of GPS system signals.

摘要翻译： 本发明涉及具有共享公共时钟源的全球定位系统（GPS）和电信设备的个人电信设备。 GPS规定包括用于控制基于公共时钟信号产生GPS系统信号的振荡器的反馈回路。 反馈环路包括用于产生反馈控制信号的频率合成器，用于根据反馈信号和公共时钟信号产生控制信号的相位比较器，以及用于处理并输出到振荡器以控制的控制信号的环路滤波器 GPS系统信号的频率。

公开(公告)号：US06532370B1

公开(公告)日：2003-03-11

申请号：US09410205

申请日：1999-09-30

申请人： Paul A. Underbrink ,  Kelly H. Hale ,  Guang-Ming Yin ,  Patrick D. Ryan ,  Joseph H. Colles ,  Daryush Shamlou

发明人： Paul A. Underbrink ,  Kelly H. Hale ,  Guang-Ming Yin ,  Patrick D. Ryan ,  Joseph H. Colles ,  Daryush Shamlou

IPC分类号： H04B138

CPC分类号： H03M1/004 ,  H03M1/007 ,  H03M1/44 ,  H04B1/406 ,  H04W88/06

摘要： A cell phone is provided that may be used with multiple radio formats, such as GSM and CDMA. The cell phone includes a receiver that receives radio signals and converts them into electrical signals. An analog to digital converter is connected to the receiver and converts an analog input to a digital output having an adjustable number of bits at an adjustable sampling frequency. A cell phone application specific integrated circuit is connected to the analog to digital converter, which is used to process the digital output to extract encoded telecommunications data in one of the supported radio formats.

摘要翻译： 提供了可以与诸如GSM和CDMA之类的多种无线电格式一起使用的手机。 手机包括接收无线电信号并将其转换成电信号的接收机。 模拟数字转换器连接到接收器，并将模拟输入转换成具有可调节采样频率的可调节位数的数字输出。 手机应用专用集成电路连接到模拟数字转换器，用于处理数字输出以以支持的无线电格式之一提取编码的电信数据。