专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07689190B2 Controlling the frequency of an oscillator 有权
标题翻译：控制振荡器的频率
公开(公告)号：US07689190B2
公开(公告)日：2010-03-30
申请号：US11112616
申请日：2005-04-22
申请人： Donald A. Kerth , James P. Maligeorgos , Dylan A. Hester , Lysander Lim , Augusto M. Marques , G. Tyson Tuttle
发明人： Donald A. Kerth , James P. Maligeorgos , Dylan A. Hester , Lysander Lim , Augusto M. Marques , G. Tyson Tuttle
IPC分类号： H04B7/00
CPC分类号： H03J7/04 , H03B5/36 , H03B2201/025 , H03J2200/10
摘要： A technique includes generating an analog voltage to control a frequency for an oscillator. The analog signal is converted into a digital signal, and the frequency is controlled in response to the digital signal.
摘要翻译：一种技术包括产生模拟电压以控制振荡器的频率。模拟信号被转换成数字信号，并且响应于数字信号来控制频率。

2. 发明授权

US07280001B2 Capacitor array segmentation 有权
标题翻译：电容阵列分割
公开(公告)号：US07280001B2
公开(公告)日：2007-10-09
申请号：US11226041
申请日：2005-09-14
申请人： James P. Maligeorgos , Donald A. Kerth , Augusto M. Marques
发明人： James P. Maligeorgos , Donald A. Kerth , Augusto M. Marques
IPC分类号： H03B5/36
CPC分类号： H03B5/366 , H03B2200/005 , H03B2201/0208 , H03B2201/0266
摘要： In one embodiment, the present invention includes a capacitor array that may provide a selected capacitance to a digitally controlled crystal oscillator (DCXO). The array may include multiple sections each having at least one array portion, where each section is to receive different significant portions of a digital control value. The different sections may have different coding schemes. Other embodiments are described and claimed.
摘要翻译：在一个实施例中，本发明包括可以向数字控制的晶体振荡器（DCXO）提供所选择的电容的电容器阵列。阵列可以包括多个部分，每个部分具有至少一个阵列部分，其中每个部分将接收数字控制值的不同重要部分。不同的部分可以具有不同的编码方案。描述和要求保护其他实施例。

3. 发明授权

US07536164B2 Controlling the frequency of an oscillator 有权
标题翻译：控制振荡器的频率
公开(公告)号：US07536164B2
公开(公告)日：2009-05-19
申请号：US11112153
申请日：2005-04-22
申请人： James P. Maligeorgos , Dylan A. Hester , Augusto M. Marques , G. Tyson Tuttle
发明人： James P. Maligeorgos , Dylan A. Hester , Augusto M. Marques , G. Tyson Tuttle
IPC分类号： H04B1/26
CPC分类号： H03L7/00
摘要： A technique includes selectively coupling impedances to an oscillator to establish a first frequency of operation of the oscillator. The technique includes repeating the selective coupling in a feedback loop to cause the first frequency to be near a second frequency.
摘要翻译：一种技术包括选择性地将阻抗耦合到振荡器以建立振荡器的第一操作频率。该技术包括在反馈回路中重复选择性耦合以使第一频率接近第二频率。

4. 发明授权

US07979048B2 Quasi non-volatile memory for use in a receiver 有权
标题翻译：用于接收机的准非易失性存储器
公开(公告)号：US07979048B2
公开(公告)日：2011-07-12
申请号：US11227796
申请日：2005-09-15
申请人： Donald A. Kerth , Brian D. Green , Augusto M. Marques
发明人： Donald A. Kerth , Brian D. Green , Augusto M. Marques
IPC分类号： H04B1/16
CPC分类号： H04W52/028 , H04B1/16 , Y02D70/40
摘要： Image rejection factors are calibrated for a receiver circuit (106) during an initialization period. The image rejection factors are stored in a quasi non-volatile memory (124) associated with the receiver circuit (106). The quasi non-volatile memory (124) is powered from a first source (VDD A) during a first receiver mode and from a second source (VIO) during a second receiver mode.
摘要翻译：在初始化期间，针对接收器电路（106）校准图像抑制因子。图像抑制因子被存储在与接收器电路（106）相关联的准非易失性存储器（124）中。准非易失性存储器（124）在第一接收器模式期间由第一源（VDD A）供电，并且在第二接收器模式期间从第二源（VIO）供电。

5. 发明授权

US07285940B2 Voltage regulator with shunt feedback 有权
公开(公告)号：US07285940B2
公开(公告)日：2007-10-23
申请号：US11220958
申请日：2005-09-07
申请人： Donald A. Kerth , Russell Croman , Brian D. Green , Lysander Lim , James Maligeorgos , Xiachuan Guo , Augusto M. Marques
发明人： Donald A. Kerth , Russell Croman , Brian D. Green , Lysander Lim , James Maligeorgos , Xiachuan Guo , Augusto M. Marques
IPC分类号： G05F1/613
CPC分类号： G05F1/613
摘要： A voltage regulator configured to receive a supply voltage from a voltage supply and provide a regulated voltage to digital circuitry is provided. The voltage regulator comprises first circuitry configured to inhibit high frequency energy generated by the digital circuitry from transmitting into the voltage supply, second circuitry configured to inhibit low frequency energy generated by the digital circuitry from transmitting into the voltage supply, and third circuitry configured to maintain the regulated voltage at a substantially constant value in response to a current drawn by the digital circuitry.

6. 发明授权

US07221921B2 Partitioning of radio-frequency apparatus 有权
公开(公告)号：US07221921B2
公开(公告)日：2007-05-22
申请号：US10730404
申请日：2003-12-08
申请人： James Maligeorgos , Augusto M. Marques , Lysander Lim , G. Tyson Tuttle , Aslamali A. Rafi , Tod Paulus , Gregory T. Uehara , Jeffrey W. Scott , Richard T. Behrens , Donald A. Kerth , G. Diwakar Vishakhadatta , Vishnu S. Srinivasan , Caiyi Wang
发明人： James Maligeorgos , Augusto M. Marques , Lysander Lim , G. Tyson Tuttle , Aslamali A. Rafi , Tod Paulus , Gregory T. Uehara , Jeffrey W. Scott , Richard T. Behrens , Donald A. Kerth , G. Diwakar Vishakhadatta , Vishnu S. Srinivasan , Caiyi Wang
IPC分类号： H04B7/00 , H04B1/40 , H03J7/04
CPC分类号： H04B1/30 , H03J2200/10 , H04L27/0002
摘要： Components of a radio-frequency (RF) apparatus including transceiver circuitry and frequency modification circuitry of a crystal oscillator circuit that generates a reference signal with adjustable frequency may be partitioned in a variety of ways, for example, as one or more separate integrated circuits. The frequency modification circuitry may be implemented as part of a crystal oscillator circuit that includes digitally controlled crystal oscillator (“DCXO”) circuitry and a crystal. The frequency modification circuitry may include at least one variable capacitance device and may be employed to generate a reference signal with adjustable frequency. The adjustable reference signal may be provided to other components of the RF apparatus and/or the RF apparatus may be configured to provide the adjustable reference signal to baseband processor circuitry. Automatic frequency control (AFC) circuitry may be integrated with other components of RF circuitry and may generate frequency control signals for the frequency modification circuitry based on, for example, a signal received from a temperature sensor. Digital-to-analog converter (DAC) circuitry may be integrated with other components of RF circuitry to enable all-digital frequency control communications from baseband processor circuitry to RF circuitry.

7. 发明申请

US20110246808A1 Receiver, System, and Memory with Memory Protection During Power Supply Transitions 有权
标题翻译：接收器，系统和内存在电源转换期间具有内存保护
公开(公告)号：US20110246808A1
公开(公告)日：2011-10-06
申请号：US13165753
申请日：2011-06-21
申请人： Donald A. Kerth , Brian D. Green , Augusto M. Marques
发明人： Donald A. Kerth , Brian D. Green , Augusto M. Marques
IPC分类号： G06F1/28
CPC分类号： H04W52/028 , H04B1/16 , Y02D70/40
摘要： A receiver includes a memory, processing circuitry, and a memory protection unit. The processing circuitry is coupled to the memory, and has an input for receiving a radio frequency (RF) signal, and an output for providing an output signal at another frequency. The processing circuitry includes one or more independently powered components adapted to write data to the memory. The memory protection unit is coupled to the memory, and monitors a power supply voltage level corresponding to each independently powered component and, if the power supply voltage level changes during a power supply transition of an independently powered component in which the power supply voltage remains sufficiently large to power the independently powered component, to prevent write operations received from a corresponding one of the one or more independently powered components from occurring at least while the power supply voltage level is changing.
摘要翻译：接收机包括存储器，处理电路和存储器保护单元。处理电路耦合到存储器，并且具有用于接收射频（RF）信号的输入端和用于在另一频率提供输出信号的输出端。处理电路包括适于向存储器写入数据的一个或多个独立供电的组件。存储器保护单元耦合到存储器，并且监视与每个独立供电的部件相对应的电源电压电平，并且如果电源电压电平在电源电压保持足够的独立供电部件的电源转换期间改变大到为独立供电的组件供电，以防止至少在电源电压电平改变时发生从一个或多个独立供电组件中相应的一个接收的写入操作。

8. 发明授权

US08489058B2 Receiver, system, and memory with memory protection during power supply transitions 有权
标题翻译：接收器，系统和存储器，在电源转换期间具有存储器保护
公开(公告)号：US08489058B2
公开(公告)日：2013-07-16
申请号：US13165753
申请日：2011-06-21
申请人： Donald A. Kerth , Brian D. Green , Augusto M. Marques
发明人： Donald A. Kerth , Brian D. Green , Augusto M. Marques
IPC分类号： H04B1/16 , G06F11/00
CPC分类号： H04W52/028 , H04B1/16 , Y02D70/40
摘要： A receiver includes a memory, processing circuitry, and a memory protection unit. The processing circuitry is coupled to the memory, and has an input for receiving a radio frequency (RF) signal, and an output for providing an output signal at another frequency. The processing circuitry includes one or more independently powered components adapted to write data to the memory. The memory protection unit is coupled to the memory, and monitors a power supply voltage level corresponding to each independently powered component and, if the power supply voltage level changes during a power supply transition of an independently powered component in which the power supply voltage remains sufficiently large to power the independently powered component, to prevent write operations received from a corresponding one of the one or more independently powered components from occurring at least while the power supply voltage level is changing.
摘要翻译：接收机包括存储器，处理电路和存储器保护单元。处理电路耦合到存储器，并且具有用于接收射频（RF）信号的输入端和用于在另一频率提供输出信号的输出端。处理电路包括适于向存储器写入数据的一个或多个独立供电的组件。存储器保护单元耦合到存储器，并且监视与每个独立供电的部件相对应的电源电压电平，并且如果电源电压电平在电源电压保持足够的独立供电部件的电源转换期间改变大到为独立供电的组件供电，以防止至少在电源电压电平改变时发生从一个或多个独立供电组件中相应的一个接收的写入操作。

9. 发明授权

US07242912B2 Partitioning of radio-frequency apparatus 有权
标题翻译：射频设备分区
公开(公告)号：US07242912B2
公开(公告)日：2007-07-10
申请号：US10631166
申请日：2003-07-31
申请人： James Maligeorgos , Augusto M. Marques , Lysander Lim , G. Tyson Tuttle , Aslamali A. Rafi , Tod Paulus , Gregory T. Uehara , Jeffrey W. Scott , Richard T. Behrens , Donald A. Kerth , G. Diwakar Vishakhadatta , Vishnu S. Srinivasan , Caiyi Wang
发明人： James Maligeorgos , Augusto M. Marques , Lysander Lim , G. Tyson Tuttle , Aslamali A. Rafi , Tod Paulus , Gregory T. Uehara , Jeffrey W. Scott , Richard T. Behrens , Donald A. Kerth , G. Diwakar Vishakhadatta , Vishnu S. Srinivasan , Caiyi Wang
IPC分类号： H04B1/40
CPC分类号： H04B1/0003 , H03L7/085 , H03L7/087 , H03L7/091 , H03L7/099 , H03L7/187 , H03L7/199 , H03L7/23 , H04B1/28 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： Components of a radio-frequency (RF) apparatus including transceiver circuitry and frequency modification circuitry of a crystal oscillator circuit that generates a reference signal with adjustable frequency may be partitioned in a variety of ways, for example, as one or more separate integrated circuits. The frequency modification circuitry may be implemented as part of a crystal oscillator circuit that includes digitally controlled crystal oscillator (“DCXO”) circuitry and a crystal. The frequency modification circuitry may include at least one variable capacitance device and may be employed to generate a reference signal with adjustable frequency. The adjustable reference signal may be provided to other components of the RF apparatus and/or the RF apparatus may be configured to provide the adjustable reference signal to baseband processor circuitry. Automatic frequency control (AFC) circuitry may be integrated with other components of RF circuitry and may generate frequency control signals for the frequency modification circuitry based on, for example, a signal received from a temperature sensor. Digital-to-analog converter (DAC) circuitry may be integrated with other components of RF circuitry to enable all-digital frequency control communications from baseband processor circuitry to RF circuitry.
摘要翻译：包括生成具有可变频率的参考信号的晶体振荡器电路的收发器电路和频率修改电路的射频（RF）设备的组件可以以各种方式被划分，例如作为一个或多个单独的集成电路。频率修改电路可以被实现为包括数字控制的晶体振荡器（“DCXO”）电路和晶体的晶体振荡器电路的一部分。频率修改电路可以包括至少一个可变电容器件，并且可以用于产生具有可调频率的参考信号。可调参考信号可以被提供给RF装置的其他部件，和/或RF装置可以被配置为向基带处理器电路提供可调参考信号。自动频率控制（AFC）电路可以与RF电路的其它组件集成，并且可以基于例如从温度传感器接收的信号来生成用于频率修改电路的频率控制信号。数模转换器（DAC）电路可以与RF电路的其他部件集成，以实现从基带处理器电路到RF电路的全数字频率控制通信。

10. 发明授权

US07138858B2 Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry 失效
公开(公告)号：US07138858B2
公开(公告)日：2006-11-21
申请号：US10079058
申请日：2002-02-19
申请人： Augusto M. Marques , Donald A. Kerth , Richard T. Behrens , Jeffrey W. Scott , G. Diwakar Vishakhadatta , G. Tyson Tuttle , Vishnu S. Srinivasan
发明人： Augusto M. Marques , Donald A. Kerth , Richard T. Behrens , Jeffrey W. Scott , G. Diwakar Vishakhadatta , G. Tyson Tuttle , Vishnu S. Srinivasan
IPC分类号： G01R19/00 , H03F3/38
CPC分类号： H04B1/0003 , H04B1/28 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： A buffer circuitry buffers a radio-frequency (RF) signal. The buffer circuitry includes a complementary pair of switches and a power source. The a complementary pair of switches has an input terminal and output terminal. The input terminal of the complementary pair of switches responds to the RF signal. The output terminal of the complementary pair of switches couples to an output of the buffer circuitry. The power source includes a capacitor coupled to a current source. The power source couples to the complementary pair of switches. The power source supplies power to the complementary pair of switches in a manner that the buffer circuitry supplies a substantially constant power level at its output.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式