公开(公告)号：US09473180B2

公开(公告)日：2016-10-18

申请号：US14946255

申请日：2015-11-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyu Min Kang ,  Seung Keun Park ,  Jae Cheol Park ,  Jung Sun Um

IPC: H04B1/04 ,  H04B1/16 ,  H04L27/12 ,  H03K7/06

CPC classification number: H04B1/04 ,  H03B21/01 ,  H03K7/06 ,  H04L27/12

Abstract: Disclosed is an apparatus for converting a frequency. The apparatus includes: an oscillator configured to generate a first oscillation signal having a first oscillation frequency which is obtained by subtracting an input frequency from a carrier frequency of any one carrier signal among a first to a n-th carrier signals (n is a natural number), and generate a second oscillation signal having a second oscillation frequency which is obtained by adding the input frequency to a carrier frequency of any one carrier signal among a (n+1)-th to a 2n-th carrier signals; and a mixer configured to mix and output the first oscillation signal or the second oscillation signal with an input signal having the input frequency.

Abstract translation: 公开了一种用于转换频率的装置。 该装置包括：振荡器，被配置为产生具有第一振荡频率的第一振荡信号，所述第一振荡频率通过从第一至第n载波信号中的任何一个载波信号的载波频率中减去输入频率而获得（n是自然的 并且生成具有第二振荡频率的第二振荡信号，所述第二振荡频率通过将输入频率与第（n + 1）至第2n载波信号中的任何一个载波信号的载波频率相加而获得; 以及混频器，被配置为利用具有输入频率的输入信号混合并输出第一振荡信号或第二振荡信号。

公开(公告)号：US20160149598A1

公开(公告)日：2016-05-26

申请号：US14946255

申请日：2015-11-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyu Min KANG ,  Seung Keun PARK ,  Jae Cheol PARK ,  Jung Sun UM

IPC: H04B1/04 ,  H03K7/06 ,  H04L27/12

CPC classification number: H04B1/04 ,  H03B21/01 ,  H03K7/06 ,  H04L27/12

Abstract: Disclosed is an apparatus for converting a frequency. The apparatus includes: an oscillator configured to generate a first oscillation signal having a first oscillation frequency which is obtained by subtracting an input frequency from a carrier frequency of any one carrier signal among a first to a n-th carrier signals (n is a natural number), and generate a second oscillation signal having a second oscillation frequency which is obtained by adding the input frequency to a carrier frequency of any one carrier signal among a (n+1)-th to a 2n-th carrier signals; and a mixer configured to mix and output the first oscillation signal or the second oscillation signal with an input signal having the input frequency.

Abstract translation: 公开了一种用于转换频率的装置。 该装置包括：振荡器，被配置为产生具有第一振荡频率的第一振荡信号，所述第一振荡频率通过从第一至第n载波信号中的任何一个载波信号的载波频率中减去输入频率而获得（n是自然的 并且生成具有第二振荡频率的第二振荡信号，所述第二振荡频率通过将输入频率与第（n + 1）至第2n载波信号中的任何一个载波信号的载波频率相加而获得; 以及混频器，被配置为利用具有输入频率的输入信号混合并输出第一振荡信号或第二振荡信号。

公开(公告)号：US09318998B1

公开(公告)日：2016-04-19

申请号：US14015707

申请日：2013-08-30

Applicant: Georgia Tech Research Corporation

Inventor： Roozbeh Tabrizian ,  Farrokh Ayazi

IPC: H03B5/32 ,  H01L41/09 ,  H03B5/04 ,  H03L1/02 ,  H03B21/00 ,  H03B5/30

CPC classification number: H03B5/323 ,  H01L41/09 ,  H03B5/04 ,  H03B5/30 ,  H03B5/32 ,  H03B21/00 ,  H03B21/01 ,  H03H9/2405 ,  H03H2009/241 ,  H03L1/02 ,  H03L1/021 ,  H03L1/022 ,  H03L1/027 ,  H03L1/028 ,  H03L7/00

Abstract: An integrated circuit device includes a multi-port piezoelectric-on-semiconductor microelectromechanical resonator, which is configured to support independent and concurrent piezoelectric transduction of multiple resonance modes. The resonator includes a semiconductor resonator body (e.g., Si body) suspended opposite an underlying recess in a substrate. Opposite ends of the semiconductor resonator body are anchored to the substrate. The resonator body may be formed so that a plan layout view of a portion of the semiconductor resonator body is dumbbell-shaped to thereby support acoustic energy trapping of multiple high-Q resonance modes.

Abstract translation: 集成电路器件包括多端口压电半导体微机电谐振器，其被配置为支持多个谐振模式的独立且并发的压电换能。 谐振器包括与衬底中的下面的凹部相对悬挂的半导体谐振器体（例如，Si体）。 半导体谐振器体的相对端锚定到基板。 可以形成谐振器体，使得半导体谐振器体的一部分的平面布局图是哑铃形的，从而支持多个高Q谐振模式的声能捕获。

公开(公告)号：US20140270032A1

公开(公告)日：2014-09-18

申请号：US13829232

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Li Liu ,  Praveen-Kumar Sampath ,  Lai Kan Leung ,  Chiewcharn Narathong ,  Soon-Seng Lau ,  Ketan Humnabadkar ,  Raghu Narayan Challa ,  Devavrata Vasant Godbole

IPC: H04L7/00 ,  H04L7/033

CPC classification number: H04L7/0331 ,  H03B21/01 ,  H03D3/009 ,  H04W52/02 ,  H04W52/0209 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164

Abstract: Techniques for detecting and correcting phase discontinuity of a local oscillator (LO) signal are disclosed. In one design, a wireless device includes an LO generator and a phase detector. The LO generator generates an LO signal used for frequency conversion and is periodically powered on and off. The phase detector detects the phase of the LO signal when the LO generator is powered on. The detected phase of the LO signal is used to identify phase discontinuity of the LO signal. The wireless device may further include (i) a single-tone generator that generates a single-tone signal used to detect the phase of the LO signal, (ii) a downconverter that downconverts the single-tone signal with the LO signal and provides a downconverted signal used by the phase detector to detect the phase of LO signal, and (iii) phase corrector that corrects phase discontinuity of the LO signal in the analog domain or digital domain.

Abstract translation: 公开了用于检测和校正本地振荡器（LO）信号的相位不连续性的技术。 在一种设计中，无线设备包括LO发生器和相位检测器。 LO发生器产生用于频率转换的LO信号，并且周期性地通电和关断。 当LO发生器通电时，相位检测器检测LO信号的相位。 LO信号的检测相位用于识别LO信号的相位不连续性。 无线设备还可以包括（i）生成用于检测LO信号的相位的单音信号的单音发生器，（ii）下变频器，其使用LO信号对单音信号进行下变频，并提供 相位检测器用于检测LO信号的相位的下变频信号，以及（iii）校正模拟域或数字域中的LO信号的相位不连续性的相位校正器。

公开(公告)号：US20140015616A1

公开(公告)日：2014-01-16

申请号：US13941906

申请日：2013-07-15

Applicant: Sand 9, Inc.

Inventor： Pritiraj Mohanty

IPC: H03L7/00

CPC classification number: H03B1/04 ,  H03B5/30 ,  H03B5/32 ,  H03B21/01 ,  H03B21/02 ,  H03B25/00 ,  H03L1/00

Abstract: Mechanical resonating structures are used to generate signals having a target frequency with low noise. The mechanical resonating structures may generate output signals containing multiple frequencies which may be suitably combined with one or more additional signals to generate the target frequency with low noise. The mechanical resonating structures may be used to form oscillators.

Abstract translation: 机械谐振结构用于产生具有低噪声的目标频率的信号。 机械谐振结构可以产生包含多个频率的输出信号，其可以与一个或多个附加信号适当地组合以产生具有低噪声的目标频率。 机械共振结构可用于形成振荡器。

公开(公告)号：US20130307605A1

公开(公告)日：2013-11-21

申请号：US13476822

申请日：2012-05-21

Applicant: Michael Robert Patrizi

Inventor： Michael Robert Patrizi

IPC: H03K3/64

CPC classification number: G01S7/03 ,  H03B19/00 ,  H03B21/01

Abstract: A dual mode frequency synthesizer circuit including: a DDS or PLL (204) for receiving an input clock (202) and generating an output clock (206), in a high resolution mode; and an RF switch (210) having its output (208) coupled to the output of the DDS or PLL, a first input (216) for receiving a first injection low phase-noise clock (F1), a second input (218) for receiving a second injection low phase-noise clock (F2), and a control input (222) for selecting one of the first or second injection low phase-noise clocks for a low phase-noise mode.

Abstract translation: 一种双模频率合成器电路，包括：用于以高分辨率模式接收输入时钟（202）并产生输出时钟（206）的DDS或PLL（204） 和具有耦合到DDS或PLL的输出的输出（208）的RF开关（210），用于接收第一注入低相位噪声时钟（F1）的第一输入（216），用于 接收第二注入低相位噪声时钟（F2），以及用于选择低相位噪声模式的第一或第二注入低相位噪声时钟之一的控制输入（222）。

公开(公告)号：US08456252B2

公开(公告)日：2013-06-04

申请号：US13242602

申请日：2011-09-23

Applicant: Emmanuel P. Quevy

Inventor： Emmanuel P. Quevy

IPC: H03B5/30 ,  H03H9/46 ,  H04B1/26

CPC classification number: H03H9/2426 ,  H03B21/01 ,  H03H9/02377 ,  H03H9/2436 ,  H03H2009/2442

Abstract: A dual in-situ mixing approach for extended tuning range of resonators. In one embodiment, a dual in-situ mixing device tunes an input radio-frequency (RF) signal using a first mixer, a resonator body, and a second mixer. In one embodiment, the first mixer is coupled to receive the input RF signal and a local oscillator signal. The resonator body receives the output of the first mixer, and the second mixer is coupled to receive the output of the resonator body and the local oscillator signal to provide a tuned output RF signal as a function of the frequency of local oscillator signal.

Abstract translation: 用于扩展谐振器调谐范围的双位置混合方法。 在一个实施例中，双原位混合装置使用第一混频器，谐振器本体和第二混频器来调谐输入射频（RF）信号。 在一个实施例中，第一混频器被耦合以接收输入RF信号和本地振荡器信号。 谐振器主体接收第一混频器的输出，并且第二混频器被耦合以接收谐振器主体的输出和本地振荡器信号，以提供作为本地振荡器信号的频率的函数的调谐输出RF信号。

公开(公告)号：US20130130632A1

公开(公告)日：2013-05-23

申请号：US13733620

申请日：2013-01-03

Applicant: FUJITSU LIMITED

Inventor： Kazuaki OISHI

IPC: H04B1/40 ,  H03B21/02

CPC classification number: H04B1/403 ,  H03B21/01 ,  H03B21/02 ,  H04B1/0082

Abstract: The disclosed signal generator circuit has a four-phase signal generator circuit generating four-phase signals with a first frequency; an eight-phase signal generator circuit performing ½ frequency division of the four-phase signals to generate eight-phase signals with a second frequency; a first to a fourth harmonic rejection mixer circuits multiplying a first four-phase signal and a second four-phase signal of the four-phase signals by a first to a third eight-phase signals and a third to a fifth eight-phase signals of the eight-phase signals with mutually different combinations; a subtractor subtracting between outputs of the first and the fourth harmonic rejection mixer circuits to generate a first output signal with a third frequency; and an adder adding between outputs of the second and the third harmonic rejection mixer circuits to generate a second output signal with a third frequency whose phase is different from the first output signal by π/2.

Abstract translation: 所公开的信号发生器电路具有产生具有第一频率的四相信号的四相信号发生器电路; 执行四相信号的1/2分频以产生具有第二频率的八相信号的八相信号发生器电路; 第一至第四谐波抑制混频器电路将四相信号的第一四相信号和第二四相信号乘以第一至第三八相信号和第三至第五八相八位信号 具有相互不同组合的八相信号; 减法器，在第一和第四谐波抑制混频器电路的输出之间减去以产生具有第三频率的第一输出信号; 以及加法器，其在第二和第三谐波抑制混频器电路的输出之间相加，以产生具有与第一输出信号相位不同的第三频率的第二输出信号pi / 2。

公开(公告)号：US08374283B2

公开(公告)日：2013-02-12

申请号：US13031992

申请日：2011-02-22

Applicant: Ivan Krivokapic ,  Thierry Divel

Inventor： Ivan Krivokapic ,  Thierry Divel

IPC: H04L27/12

CPC classification number: H03L7/099 ,  H03B21/01 ,  H03D7/165 ,  H03J3/08 ,  H03L7/0805 ,  H03L7/107 ,  H03L7/18 ,  H03L7/185 ,  H04B1/30

Abstract: A single sideband mixer circuit includes a voltage controlled oscillator operable a tunable frequency f1. The mixer circuit outputs a frequency signal at a frequency f1±f2. A tracking filter operates to filter the frequency signal and generate a first output signal at the frequency f1±f2. A resonance frequency fr of the tracking filter is tunable to substantially match the frequency f1±f2 of the frequency signal. The output signal of the tracking filter may be processed by a phase lock loop circuit to generate a control signal for controlling the setting of the tunable frequency f1 and resonance frequency fr. Alternatively, the output signal of the tracking filter may be divided and the divided signal processed by a phase lock loop circuit to generate the control signal for controlling setting of the tunable frequency f1 and resonance frequency fr.

Abstract translation: 单个边带混频器电路包括可操作的可调频率f1的压控振荡器。 混频器电路以f1±f2的频率输出频率信号。 跟踪滤波器用于对频率信号进行滤波并产生频率为f1±f2的第一输出信号。 跟踪滤波器的谐振频率fr可调，以使频率信号的频率f1±f2基本匹配。 跟踪滤波器的输出信号可以由锁相环电路来处理，以产生用于控制可调频率f1和谐振频率fr的设置的控制信号。 或者，跟踪滤波器的输出信号可以被分频，并且由锁相环电路处理的分频信号产生用于控制可调谐频率f1和谐振频率fr的设置的控制信号。

公开(公告)号：US20120187983A1

公开(公告)日：2012-07-26

申请号：US13009952

申请日：2011-01-20

Applicant: Chung-Hsien LIN ,  Jui-Cheng HUANG ,  Wan-Te CHEN ,  Chia-Hua CHU

Inventor： Chung-Hsien LIN ,  Jui-Cheng HUANG ,  Wan-Te CHEN ,  Chia-Hua CHU

IPC: H03B19/00

CPC classification number: H03B21/01 ,  H03B5/30

Abstract: A mechanical frequency generator has a first mechanical resonator and a second mechanical resonator and a circuit connected with the first and second mechanical resonators. The first and second mechanical resonators having substantially the same resonator frequency coefficients as a function of an environment of the first and the second mechanical resonators. The first mechanical resonator differing in size from the second mechanical resonator. The circuit adapted to generate a difference frequency signal responsive to the first and second mechanical resonator frequency signals and based on the first and the second predetermined resonant frequencies.

Abstract translation: 机械频率发生器具有第一机械谐振器和第二机械谐振器以及与第一和第二机械谐振器连接的电路。 第一和第二机械谐振器具有与第一和第二机械谐振器的环境的函数基本上相同的谐振器频率系数。 第一机械谐振器的尺寸与第二机械谐振器的尺寸不同。 该电路适于响应于第一和第二机械谐振器频率信号并基于第一和第二预定谐振频率产生差频信号。