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1. 发明申请

US20130043958A1 DIGITALLY CONTROLLED OSCILLATOR 有权
标题翻译：数字控制振荡器
公开(公告)号：US20130043958A1
公开(公告)日：2013-02-21
申请号：US13210280
申请日：2011-08-15
申请人： Yen-Horng Chen , Wen-Chang Lee , Augusto Marques , Xiaochuan Guo
发明人： Yen-Horng Chen , Wen-Chang Lee , Augusto Marques , Xiaochuan Guo
IPC分类号： H03B5/12
CPC分类号： H03B5/1228 , H03B5/1215 , H03B5/1265 , H03J2200/10
摘要： A digitally controlled oscillator is provided. The digitally controlled oscillator includes a pair of transistors cross-coupled to each other, a switched capacitor array coupled to the pair of transistors and a plurality of frequency tracking units coupled to the pair of transistors. The pair of transistors provides an output signal. The switched capacitor array tunes a frequency of the output signal. The frequency tracking units tune the frequency of the output signal to a target frequency. At least one of the frequency tracking units is capable of selectively providing a first capacitance and a second capacitance. A tuning resolution of the frequency tracking unit is determined by a difference between the first and second capacitances.
摘要翻译：提供数字控制振荡器。数字控制振荡器包括彼此交叉耦合的一对晶体管，耦合到该对晶体管的开关电容器阵列和耦合到该对晶体管的多个频率跟踪单元。一对晶体管提供输出信号。开关电容阵列调节输出信号的频率。频率跟踪单元将输出信号的频率调谐到目标频率。频率跟踪单元中的至少一个能够选择性地提供第一电容和第二电容。频率跟踪单元的调谐分辨率由第一和第二电容之间的差确定。

2. 发明申请

US20120074998A1 INTEGRATED CIRCUIT DEVICE, ELECTRONIC DEVICE AND METHOD FOR COMPENSATING FREQUENCY DRIFT OF A CONTROLLABLE OSCILLATOR 审中-公开
标题翻译：集成电路装置，电子装置和用于补偿可控振荡器的频率干扰的方法
公开(公告)号：US20120074998A1
公开(公告)日：2012-03-29
申请号：US13115126
申请日：2011-05-25
申请人： Stephen Jonathan Brett , Augusto Marques , Jonathan Richard STRANGE
发明人： Stephen Jonathan Brett , Augusto Marques , Jonathan Richard STRANGE
IPC分类号： H03L7/08
CPC分类号： H03L7/099 , H03L1/022 , H03L2207/06
摘要： An integrated circuit device for compensating frequency drift of a controllable oscillator is described. The integrated circuit device includes at least one compensation module including: an input for receiving at least an indication of a frequency control signal (vci) from at least one frequency control module; and an output for providing at least one compensation signal (vct) to the controllable oscillator. The at least one compensation module is arranged to compare the at least indication of the frequency control signal (vci) with a reference voltage signal (vref); and generate the at least one compensation signal (vct) based at least partly on the comparison of the indication of the frequency control signal (vci) to the reference voltage signal (vref).
摘要翻译：描述了用于补偿可控振荡器的频率漂移的集成电路装置。集成电路装置包括至少一个补偿模块，包括：用于从至少一个频率控制模块接收至少一个频率控制信号（vci）的指示的输入; 以及用于向可控振荡器提供至少一个补偿信号（vct）的输出。所述至少一个补偿模块被布置为将所述频率控制信号（vci）的所述至少指示与参考电压信号（vref）进行比较; 并且至少部分地基于频率控制信号（vci）的指示与参考电压信号（vref）的比较来生成至少一个补偿信号（vct）。

3. 发明申请

US20070057743A1 Analog varactor 有权
标题翻译：模拟变容二极管
公开(公告)号：US20070057743A1
公开(公告)日：2007-03-15
申请号：US11227421
申请日：2005-09-14
申请人： Peter Vancorenland , Lysander Lim , Augusto Marques , Scott Willingham
发明人： Peter Vancorenland , Lysander Lim , Augusto Marques , Scott Willingham
IPC分类号： H03B5/12
CPC分类号： H03J3/185 , H03B5/1243 , H03B5/1293 , H03B2200/0062 , H03B2201/0208 , H03B2201/0266 , H03J7/10 , H03J2200/36 , H03L7/099
摘要： An oscillator includes a plurality of varactor cells to receive a control signal to control a frequency of the oscillator. Each of the varactor cells includes a switch that includes a first terninal to receive the control signal and a second terminal such that the switch operates to control a capacitance of the varactor cell in response to a voltage between the first and second terminals. The oscillator includes a bias circuit to provide a different bias voltage to each second terminal and an amplifier that is coupled to the varactor cells to generate an oscillating signal.
摘要翻译：振荡器包括多个变容二极管单元，用于接收控制信号以控制振荡器的频率。每个变容二极管单元包括开关，该开关包括用于接收控制信号的第一三极管和第二端子，使得开关操作以响应于第一和第二端子之间的电压来控制变容二极管单元的电容。振荡器包括偏置电路，以向每个第二端子提供不同的偏置电压，以及耦合到变容二极管单元以产生振荡信号的放大器。

4. 发明申请

US20070057739A1 Capacitor array segmentation 有权
公开(公告)号：US20070057739A1
公开(公告)日：2007-03-15
申请号：US11226041
申请日：2005-09-14
申请人： James Maligeorgos , Donald Kerth , Augusto Marques
发明人： James Maligeorgos , Donald Kerth , Augusto Marques
IPC分类号： H03B5/12
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.

5. 发明申请

US20070054629A1 PARTITIONING OF RADIO-FREQUENCY APPARATUS 有权
标题翻译：无线电频率设备的分配
公开(公告)号：US20070054629A1
公开(公告)日：2007-03-08
申请号：US10730404
申请日：2003-12-08
申请人： James Maligeorgos , Augusto Marques , Lysander Lim , G. Tuttle , Aslamali Rafi , Tod Paulus , Gregory Uehara , Jeffrey Scott , Richard Behrens , Donald Kerth , G. Vishakhadatta , Vishnu Srinivasan , Caiyi Wang
发明人： James Maligeorgos , Augusto Marques , Lysander Lim , G. Tuttle , Aslamali Rafi , Tod Paulus , Gregory Uehara , Jeffrey Scott , Richard Behrens , Donald Kerth , G. Vishakhadatta , Vishnu Srinivasan , Caiyi Wang
IPC分类号： H04B1/38
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.
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。

6. 发明申请

US20050212585A1 SYSTEM AND METHOD FOR BIASING ELECTRICAL CIRCUITS 失效
标题翻译：用于偏置电路的系统和方法
公开(公告)号：US20050212585A1
公开(公告)日：2005-09-29
申请号：US10810039
申请日：2004-03-26
申请人： Donald Kerth , Augusto Marques , Dylan Hester , Russell Croman
发明人： Donald Kerth , Augusto Marques , Dylan Hester , Russell Croman
IPC分类号： H02J1/00 , H03B5/04 , H03F1/30 , H03K3/01
CPC分类号： H03F1/301 , H03B5/04
摘要： A bias system is disclosed including a calibration bus to which a controller, a reference bias source, a master bias source, and first and second slave bias sources are coupled. The controller varies a control code sent over the calibration bus to the master bias source until a particular control code is found that causes the bias signal of the master bias source to equal a desired bias value which is provided by the reference bias source. The controller then sends the particular control code to the first and second slave bias sources to cause the first and second slave bias sources to generate a bias signal having the same desired bias value as the master bias source. Isolation between load circuits coupled to the first and second bias sources is thus enhanced while providing low noise, stable operation
摘要翻译：公开了一种偏置系统，其包括校准总线，控制器，参考偏置源，主偏置源以及第一和第二从属偏置源耦合到校准总线。控制器将通过校准总线发送的控制代码改变为主偏置源，直到找到导致主偏置源的偏置信号等于由参考偏置源提供的期望偏置值的特定控制代码。然后，控制器将特定控制码发送到第一和第二从属偏置源，以使第一和第二从属偏置源产生具有与主偏置源相同的期望偏置值的偏置信号。因此，耦合到第一和第二偏置源的负载电路之间的隔离增强，同时提供低噪声，稳定的操作

7. 发明申请

US20120249195A1 CLOCK GENERATING APPARATUS AND FREQUENCY CALIBRATING METHOD OF THE CLOCK GENERATING APPARATUS 有权
标题翻译：时钟生成装置的时钟生成装置和频率校准方法
公开(公告)号：US20120249195A1
公开(公告)日：2012-10-04
申请号：US13299347
申请日：2011-11-17
申请人： Xiaochuan Guo , Wen-Chang Lee , Chii-Horng Chen , Augusto Marques
发明人： Xiaochuan Guo , Wen-Chang Lee , Chii-Horng Chen , Augusto Marques
IPC分类号： H03L7/08
CPC分类号： H03L7/103 , H03L7/099 , H03L7/1976 , H03L2207/06 , H03L2207/50
摘要： A clock generating apparatus includes: a time-to-digital converter (TDC) arranged to convert a timing difference between a reference clock and a variable clock to generate a digital value; a calibrating device arranged to generate a control signal according to the digital value and the reference clock; a controllable oscillator arranged to generate an oscillating signal according to the control signal and the digital value; and a feedback device arranged to generate the variable clock to the TDC according to the oscillating signal, and the calibrating device calibrates the controllable oscillator to make the oscillating signal have a target oscillating frequency.
摘要翻译：时钟发生装置包括：时间数字转换器（TDC），被配置为转换参考时钟和可变时钟之间的定时差以产生数字值; 校准装置，被配置为根据数字值和参考时钟产生控制信号; 可控振荡器，被配置为根据控制信号和数字值产生振荡信号; 以及反馈装置，其被配置为根据振荡信号向TDC生成可变时钟，并且校准装置校准可控振荡器以使振荡信号具有目标振荡频率。

8. 发明授权

US08196817B2 Systems and methods for facilitating payment transactions using a financial transaction card 有权
标题翻译：使用金融交易卡促进支付交易的系统和方法
公开(公告)号：US08196817B2
公开(公告)日：2012-06-12
申请号：US12267249
申请日：2008-11-07
申请人： Fernando Augusto Marques Lourenco , Jeremy King
发明人： Fernando Augusto Marques Lourenco , Jeremy King
IPC分类号： G06K5/00 , G06K19/00 , G06Q40/00 , B42D11/00 , B42D15/00
CPC分类号： G07F7/0866 , G06Q40/00 , G06Q40/025 , G06Q40/04 , G07F7/0806
摘要： A financial transaction card associated with an account of a cardholder is provided. The financial transaction card includes a front side, a back side, a signature block, and a validation code. The signature block includes a substrate having a bottom face and a top face wherein the bottom face is coupled to at least one of the sides of the card. The top face is substantially planar and includes a first data field and a second data field. The first data field and the second data field are non-overlapping. The validation code is associated with the account and is displayed within the second data field.
摘要翻译：提供与持卡人账户相关联的金融交易卡。金融交易卡包括前侧，背面，签名块和验证码。签名块包括具有底面和底面的基底，其中底面耦合到卡的至少一侧。顶面基本上是平面的，并且包括第一数据字段和第二数据字段。第一数据字段和第二数据字段是不重叠的。验证码与帐户相关联，并显示在第二个数据字段中。

9. 发明申请

US20120074993A1 INTEGRATED CIRCUIT DEVICE, ELECTRONIC DEVICE AND METHOD THEREFOR 有权
标题翻译：集成电路设备，电子设备及其方法
公开(公告)号：US20120074993A1
公开(公告)日：2012-03-29
申请号：US13273231
申请日：2011-10-14
申请人： Yen-Horng Chen , Augusto Marques , Caiyi Wang
发明人： Yen-Horng Chen , Augusto Marques , Caiyi Wang
IPC分类号： H03L7/08
CPC分类号： H03L7/099 , H03L1/00 , H03L1/02 , H03L2207/06 , H03L2207/50
摘要： An integrated circuit device includes at least one controllable oscillator including a first control port and at least one further control port, at least one frequency control module including an output arranged to provide a frequency control signal. The at least one controllable oscillator further includes at least one compensation module including an output arranged to provide at least one compensation signal. The at least one compensation module includes an integrator component arranged to receive at an input thereof a signal that is representative of a difference between the indication of the frequency control signal and a reference signal, and to output an integrated difference signal. The at least one compensation module is arranged to generate the at least one compensation signal based at least partly on the integrated difference signal output by the integrator component.
摘要翻译：集成电路装置包括至少一个包括第一控制端口和至少一个另外的控制端口的可控振荡器，至少一个频率控制模块，其包括布置成提供频率控制信号的输出。所述至少一个可控振荡器还包括至少一个补偿模块，该补偿模块包括布置成提供至少一个补偿信号的输出。所述至少一个补偿模块包括积分器部件，其被布置为在其输入处接收表示所述频率控制信号的指示与参考信号之间的差异的信号，并输出积分差分信号。至少一个补偿模块被布置成至少部分地基于由积分器组件输出的积分差分信号来产生至少一个补偿信号。

10. 发明申请

US20070200539A1 System with linear and switching regulator circuits 有权
标题翻译：具有线性和开关稳压器电路的系统
公开(公告)号：US20070200539A1
公开(公告)日：2007-08-30
申请号：US11362982
申请日：2006-02-27
申请人： Ramkishore Ganti , Caiyi Wang , Augusto Marques
发明人： Ramkishore Ganti , Caiyi Wang , Augusto Marques
IPC分类号： G05F1/00
CPC分类号： G05F1/56 , H02M3/155 , H02M2001/0045
摘要： An apparatus comprises a circuit having a power supply node and a linear regulator configured to provide a regulated voltage at the power supply node of the circuit. The apparatus further comprises a switching regulator configured to provide input power to the linear regulator from a power source such as a battery. In some implementations, the circuit is a transceiver circuit.
摘要翻译：一种装置包括具有电源节点的电路和被配置为在电路的电源节点处提供调节电压的线性调节器。该装置还包括开关调节器，其被配置为从诸如电池的电源向线性调节器提供输入功率。在一些实现中，电路是收发器电路。

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