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1. 发明授权

US09680448B2 Gain-boosted n-path passive-mixer-first receiver with a single mixing step 有权
公开(公告)号：US09680448B2
公开(公告)日：2017-06-13
申请号：US14862392
申请日：2015-09-23
申请人： University of Macau
发明人： Pui-In Mak , Zhicheng Lin , Rui Paulo da Silva Martins
IPC分类号： H04B1/16 , H03H11/04 , H03H11/12 , H03H19/00 , H03F1/02 , H03F3/19 , H03F3/45 , H03B5/12
CPC分类号： H03H11/0472 , H03B5/1237 , H03B5/1246 , H03B2202/06 , H03F1/0205 , H03F3/19 , H03F3/45076 , H03F2200/294 , H03F2200/451 , H03H11/1291 , H03H19/002 , H03H19/004 , H03H2011/0483 , H03H2210/025 , H04B1/16 , H04B1/1638
摘要： The present invention discloses a gain-boosted n-path passive-mixer-first receiver. According to another aspect of the present disclosure, a gain-boosted n-path passive-mixer-first receiver is provided. The receiver includes a number n of switch-capacitor (sc) sets, a resistor, and a transconductance amplifier. The sc sets connect in parallel, and the sc sets have a first node and a second node. The resistor connects to the first node. The transconductance amplifier connects to the resistor and the second node.

2. 发明授权

US5163169A Frequency divider having the power supply connected to the GaAs substrate 失效
标题翻译：具有连接到GAAS基板的电源的频率分配器
公开(公告)号：US5163169A
公开(公告)日：1992-11-10
申请号：US455134
申请日：1989-12-22
申请人： Kousei Maemura , Teruyuki Shimura , Hiroaki Seki
发明人： Kousei Maemura , Teruyuki Shimura , Hiroaki Seki
IPC分类号： H03L7/18 , H03B1/04 , H03B19/14 , H03K21/00
CPC分类号： H03B19/14 , H03B2200/0022 , H03B2200/0028 , H03B2200/009 , H03B2202/01 , H03B2202/042 , H03B2202/06
摘要： A frequency divider circuit including a field effect transistor on a semi-insulating substrate including applying a voltage higher than the lowest of the power supply voltages of the frequency divider circuit to the semi-insulating substrate.

3. 发明申请

US20170005665A1 Circuits and Methods Providing Clock Frequency Adjustment in Response to Supply Voltage Changes 有权
标题翻译：电路和方法提供响应电源电压变化的时钟频率调整
公开(公告)号：US20170005665A1
公开(公告)日：2017-01-05
申请号：US14789095
申请日：2015-07-01
申请人： QUALCOMM Incorporated
发明人： Ashok Swaminathan , Christian Venerus , Marzio Pedrali-Noy
IPC分类号： H03L7/099
CPC分类号： H03L7/099 , H03B5/04 , H03B2202/042 , H03B2202/06 , H03L1/00
摘要： Methods, systems, and circuits for providing compensation for voltage variation are disclosed. A system includes: a voltage comparator configured to assert a control signal in response to detecting that one or more of power supply voltages droops below a threshold amount; a phase locked loop (PLL) configured to divide an output frequency for the PLL in response to the assertion of the control signal; a plurality of voltage sensors corresponding to the plurality of power supply voltages, the voltage sensors configured to output respective digital signals indicative of a voltage level of its corresponding power supply voltage; and a control circuit configured to control an oscillator frequency in the PLL during the open-loop mode responsive to the respective digital signals.
摘要翻译：公开了用于提供电压变化补偿的方法，系统和电路。一种系统包括：电压比较器，配置成响应于检测到一个或多个电源电压下降到阈值以下，来控制控制信号; 锁相环（PLL），被配置为响应于所述控制信号的断言来分频所述PLL的输出频率; 对应于多个电源电压的多个电压传感器，所述电压传感器被配置为输出表示其相应电源电压的电压电平的各个数字信号; 以及控制电路，被配置为响应于各个数字信号在开环模式期间控制PLL中的振荡器频率。

4. 发明授权

US09257996B2 Oscillator circuits and methods to compensate frequency pulling 有权
标题翻译：振荡电路及补偿方法
公开(公告)号：US09257996B2
公开(公告)日：2016-02-09
申请号：US14741731
申请日：2015-06-17
申请人： STMICROELECTRONICS S.r.l.
发明人： Angelo Scuderi , Antonino Calcagno , Salvatore Scaccianoce
IPC分类号： H03K7/00 , H03L7/02 , H04B1/38 , H04B7/00 , H03L7/18 , H04L25/49
CPC分类号： H03L7/02 , H03B2202/06 , H03C1/62 , H03L7/18 , H04B1/0475 , H04B1/38 , H04B7/00 , H04L25/4902
摘要： An oscillator circuit may include a local oscillator to generate a carrier signal having a tunable frequency, a first modulator and a power amplifier coupled in cascade to the local oscillator to generate an output signal. The first modulator may be activated from a first modulating signal having a first frequency alternatively defining ON and OFF states of the first modulator. An estimator unit may receive the carrier signal during a time window and detect an estimated frequency variation of the carrier signal during the ON and OFF states. A compensation unit may include a second modulator to generate a compensation signal proportional to the estimated frequency variation and modulated with a second modulating frequency. The second modulating frequency may be substantially the same as the first modulating frequency, and the compensation signal may be added to a bias signal of the local oscillator to tune the tunable frequency.
摘要翻译：振荡器电路可以包括本地振荡器以产生具有可调频率的载波信号，第一调制器和功率放大器级联耦合到本地振荡器以产生输出信号。可以从具有第一频率的第一调制信号激活第一调制器，第一频率交替地限定第一调制器的接通和断开状态。估计单元可以在时间窗口期间接收载波信号，并且在ON和OFF状态期间检测载波信号的估计频率变化。补偿单元可以包括第二调制器，以产生与估计的频率变化成比例并且以第二调制频率调制的补偿信号。第二调制频率可以与第一调制频率基本相同，并且补偿信号可以被添加到本地振荡器的偏置信号以调谐可调谐频率。

5. 发明授权

US5359302A Self-regulating oscillator circuit and method 失效
标题翻译：自调谐振荡电路及方法
公开(公告)号：US5359302A
公开(公告)日：1994-10-25
申请号：US904426
申请日：1992-06-26
申请人： Rudolph D. Balusek
发明人： Rudolph D. Balusek
IPC分类号： H03B1/04 , H03L1/00 , H03L5/00
CPC分类号： H03L1/00 , H03B2202/06
摘要： A self-regulating oscillator circuit and method are disclosed. Specifically, a method is described whereby an oscillator having an active device is operated. The oscillator is operated by providing a current through the active device, as well as through a reference device connected in series with the active device of the oscillator. A reference voltage across the reference device is sampled, and a regulated voltage is generated by adding a predetermined voltage to the sampled reference voltage. Finally, the regulated voltage is applied to the active device of the oscillator. In one circuit embodiment, the oscillator as described includes a gallium arsenide FET structure which cooperates with a resonant structure to produce a reflection-type oscillator. In addition, a regulator circuit is described including an isolating op amp which samples the reference voltage from the active device of the oscillator and provides its output to a voltage source device. The voltage source device adds an additional fixed voltage to the sampled voltage and the additional voltage is connected through a pn junction to provide a regulated output voltage. The regulated output voltage is connected to the active device of the oscillator, thereby maintaining the voltage drop across the active device to improve oscillator performance.
摘要翻译：公开了一种自调节振荡器电路和方法。具体地，描述了一种方法，由此操作具有有源器件的振荡器。通过提供通过有源器件的电流以及通过与振荡器的有源器件串联连接的参考器件来操作振荡器。对参考装置两端的参考电压进行采样，并通过向采样的参考电压加上预定电压来产生调节电压。最后，将调节电压施加到振荡器的有源器件。在一个电路实施例中，所描述的振荡器包括砷化镓FET结构，其与谐振结构配合以产生反射型振荡器。此外，描述了一种调节器电路，其包括隔离运算放大器，其对来自振荡器的有源器件的参考电压进行采样，并将其输出提供给电压源器件。电压源装置向采样电压增加额外的固定电压，附加电压通过pn结连接以提供稳定的输出电压。调节的输出电压连接到振荡器的有源器件，从而保持有源器件上的电压降，以提高振荡器的性能。

6. 发明授权

US5056144A Fast switching drive circuit for a ferri-resonant oscillator 失效
标题翻译：用于铁共振振荡器的快速开关驱动电路
公开(公告)号：US5056144A
公开(公告)日：1991-10-08
申请号：US597970
申请日：1990-10-15
申请人： William P. Cornelius
发明人： William P. Cornelius
IPC分类号： H03B5/06 , H03B1/00 , H03B1/04 , H03B5/18 , H03B9/14
CPC分类号： H03B9/142 , H03B5/1894 , H03B2200/0054 , H03B2200/0088 , H03B2201/0241 , H03B2202/017 , H03B2202/06
摘要： Apparatus for allowing low noise and fast frequency switching of a ferri-resonant oscillator, such as YIG, that uses a coil to control output signal frequency by current level. The apparatus positions an active filter in parallel with the oscillator coil, which can be set to one of two impedance levels. A low impedance level provides low pass filtering of the current to the oscillator coil for low noise operation. A second high impedance level allows fast settling of transients during frequency changes. Once current levels have stabilized, the active filter can then be switched to low impedance mode without creating a significant transient. This facilitates fast frequency switching.

7. 发明授权

US09712111B2 Oscillator, electronic apparatus, and moving object 有权
公开(公告)号：US09712111B2
公开(公告)日：2017-07-18
申请号：US15014283
申请日：2016-02-03
申请人： Seiko Epson Corporation
发明人： Akihiro Fukuzawa
IPC分类号： H03L7/085 , H03L7/089 , H03B5/32 , H03B5/12
CPC分类号： H03B5/32 , H03B5/129 , H03B2200/0062 , H03B2201/0283 , H03B2201/038 , H03B2202/06
摘要： An oscillator includes an input terminal, an oscillation circuit section configured to cause a resonator to resonate to output an oscillator signal, a digital input section to which a signal for controlling an oscillation frequency of the oscillation circuit section is input via the input terminal, and a first bias circuit section including a constant current source configured to supply a reference current to the digital input section.

8. 发明授权

US09673781B2 Radio-frequency-to-baseband function-reuse receiver with shared amplifiers for common-mode and differential-mode amplification 有权
公开(公告)号：US09673781B2
公开(公告)日：2017-06-06
申请号：US14884860
申请日：2015-10-16
申请人： University of Macau
发明人： Pui-In Mak , Zhicheng Lin , Rui Paulo da Silva Martins
IPC分类号： H04B1/00 , H04J11/00 , H03H11/04 , H03H19/00 , H03H11/12 , H03F1/02 , H03F3/19 , H03F3/45 , H04B1/16 , H03B5/12
CPC分类号： H03H11/0472 , H03B5/1237 , H03B5/1246 , H03B2202/06 , H03F1/0205 , H03F3/19 , H03F3/45076 , H03F2200/294 , H03F2200/451 , H03H11/1291 , H03H19/002 , H03H19/004 , H03H2011/0483 , H03H2210/025 , H04B1/16 , H04B1/1638
摘要： According to another aspect of the present disclosure, a radio-frequency-to-baseband-function-reuse receiver with shared amplifiers for common-mode and differential-mode amplification is provided. The receiver includes two set networks connected in parallel. The set networks includes a first and a second input capacitors, a first and a second output capacitors, a first transconductance amplifier having an input terminal, a second transconductance amplifier having an input terminal, a first switch, and a second switch. The first and the second input capacitors connect to a first node. The first and the second output capacitors connect to a second node. The first transconductance amplifier connects between the first input capacitor and the first output capacitor. The second transconductance amplifier connects between the second input capacitor and the second output capacitor. The first switch connects between the input terminal of the first transconductance amplifier and the second node. The second switch connects between the input terminal of the second transconductance amplifier and the second node.

9. 发明申请

US20160233908A1 RADIO-FREQUENCY-TO-BASEBAND FUNCTION-REUSE RECEIVER WITH SHARED AMPLIFIERS FOR COMMON-MODE AND DIFFERENTIAL-MODE AMPLIFICATION 有权
标题翻译：具有共模放大器和差分放大倍数的共享放大器的无线电频率到基带功能 - 重用接收器
公开(公告)号：US20160233908A1
公开(公告)日：2016-08-11
申请号：US14884860
申请日：2015-10-16
申请人： University of Macau
发明人： Pui-In MAK , Zhicheng LIN , Rui Paulo da Silva MARTINS
IPC分类号： H04B1/16 , H03F3/19 , H03F3/45 , H03F1/02
CPC分类号： H03H11/0472 , H03B5/1237 , H03B5/1246 , H03B2202/06 , H03F1/0205 , H03F3/19 , H03F3/45076 , H03F2200/294 , H03F2200/451 , H03H11/1291 , H03H19/002 , H03H19/004 , H03H2011/0483 , H03H2210/025 , H04B1/16 , H04B1/1638
摘要： According to another aspect of the present disclosure, a radio-frequency-to-baseband-function-reuse receiver with shared amplifiers for common-mode and differential-mode amplification is provided. The receiver includes two set networks connected in parallel. The set networks includes a first and a second input capacitors, a first and a second output capacitors, a first transconductance amplifier having an input terminal, a second transconductance amplifier having an input terminal, a first switch, and a second switch. The first and the second input capacitors connect to a first node. The first and the second output capacitors connect to a second node. The first transconductance amplifier connects between the first input capacitor and the first output capacitor. The second transconductance amplifier connects between the second input capacitor and the second output capacitor. The first switch connects between the input terminal of the first transconductance amplifier and the second node. The second switch connects between the input terminal of the second transconductance amplifier and the second node.
摘要翻译：根据本公开的另一方面，提供了一种具有用于共模和差模放大的共享放大器的射频到基带功能重用接收机。接收机包括并联连接的两组网络。集网络包括第一和第二输入电容器，第一和第二输出电容器，具有输入端的第一跨导放大器，具有输入端的第二跨导放大器，第一开关和第二开关。第一和第二输入电容器连接到第一节点。第一和第二输出电容器连接到第二节点。第一跨导放大器连接在第一输入电容器和第一输出电容器之间。第二跨导放大器连接在第二输入电容器和第二输出电容器之间。第一开关连接在第一跨导放大器的输入端和第二节点之间。第二开关连接在第二跨导放大器的输入端和第二节点之间。

10. 发明申请

US20160233906A1 GAIN-BOOSTED N-PATH PASSIVE-MIXER-FIRST RECEIVER WITH A SINGLE MIXING STEP 有权
标题翻译：具有单一混合步长的增强型N路PASS-MIXER-FIRST接收器
公开(公告)号：US20160233906A1
公开(公告)日：2016-08-11
申请号：US14862392
申请日：2015-09-23
申请人： University of Macau
发明人： Pui-In MAK , Zhicheng LIN , Rui Paulo da Silva MARTINS
IPC分类号： H04B1/16
CPC分类号： H03H11/0472 , H03B5/1237 , H03B5/1246 , H03B2202/06 , H03F1/0205 , H03F3/19 , H03F3/45076 , H03F2200/294 , H03F2200/451 , H03H11/1291 , H03H19/002 , H03H19/004 , H03H2011/0483 , H03H2210/025 , H04B1/16 , H04B1/1638
摘要： The present invention discloses a gain-boosted n-path passive-mixer-first receiver. According to another aspect of the present disclosure, a gain-boosted n-path passive-mixer-first receiver is provided. The receiver includes a number n of switch-capacitor (sc) sets, a resistor, and a transconductance amplifier. The sc sets connect in parallel, and the sc sets have a first node and a second node. The resistor connects to the first node. The transconductance amplifier connects to the resistor and the second node.
摘要翻译：本发明公开了一种增益升压的n路无源混频器接收机。根据本公开的另一方面，提供增益升高的n路无源混频器优先接收机。接收器包括数量为n的开关电容器（sc）组，电阻器和跨导放大器。 sc集并行连接，sc集合具有第一节点和第二节点。电阻器连接到第一个节点。跨导放大器连接到电阻和第二个节点。

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