公开(公告)号：US09841454B2

公开(公告)日：2017-12-12

申请号：US14232308

申请日：2012-07-12

申请人： Giuseppe Antonio Gelonese

发明人： Giuseppe Antonio Gelonese

IPC分类号： H03J3/00 ,  G01R31/04 ,  H02J9/00 ,  H02J3/00 ,  H01R25/00

CPC分类号： G01R31/04 ,  H01R25/003 ,  H02J3/00 ,  H02J9/005 ,  H02J2009/007

摘要： An energy saving device that is adapted to be connected to a power outlet and further connected to at least one electrical device, said electrical devices drawing power through the energy saving device, the energy saving device including testing means adapted to perform at least one installation verification test and communication means adapted to communicate a validation signal to a monitoring entity when a result of the installation verification test indicates that a correct installation has occurred.

公开(公告)号：US20090184786A1

公开(公告)日：2009-07-23

申请号：US12416268

申请日：2009-04-01

申请人： Chang-Ho Lee ,  Ockgoo Lee ,  Jeonghu Han ,  Kyu Hwan An ,  Hyungwook Kim ,  Dong Ho Lee ,  Ki Seok Yang ,  Haksun Kim ,  Joy Laskar

发明人： Chang-Ho Lee ,  Ockgoo Lee ,  Jeonghu Han ,  Kyu Hwan An ,  Hyungwook Kim ,  Dong Ho Lee ,  Ki Seok Yang ,  Haksun Kim ,  Joy Laskar

IPC分类号： H03J3/00 ,  H01F27/28 ,  H03F1/00 ,  H05K13/04

CPC分类号： H03F1/565 ,  H01F27/2804 ,  H03F3/195 ,  H03F3/211 ,  H03F3/45475 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/399 ,  H03F2200/402 ,  H03F2200/451 ,  H03F2200/541 ,  H03F2203/45138 ,  Y10T29/5313

摘要： Embodiments of the invention may provide for power amplifier systems and methods. The systems and methods may include a power amplifier that generates a first differential output signal and a second differential output signal, a primary winding comprised of a plurality of primary segments, where a first end of each primary segment is connected to a first common input port and a second end of each primary segment is connected to a second common input port, where the first common input port is operative to receive the first differential output signal, and where the second common input port is operative to receive the second differential output signal, and a single secondary winding inductively coupled to the plurality of primary segments.

公开(公告)号：US20080231355A1

公开(公告)日：2008-09-25

申请号：US10572552

申请日：2005-03-22

申请人： Hye-Ryung Lee

发明人： Hye-Ryung Lee

IPC分类号： H03D99/00 ,  H03J3/00

CPC分类号： H04N5/455

摘要： A tuner and a demodulating unit thereof are provided. A trap filter for a specific frequency is installed in the IF demodulating unit so as to eliminate a frequency signal acting as a beat component.

摘要翻译： 提供了调谐器及其解调单元。 用于特定频率的陷波滤波器安装在IF解调单元中，以消除作为拍频分量的频率信号。

公开(公告)号：US07129994B2

公开(公告)日：2006-10-31

申请号：US10655155

申请日：2003-09-04

申请人： Michinori Sasaki ,  Hiroyuki Sawamoto

发明人： Michinori Sasaki ,  Hiroyuki Sawamoto

IPC分类号： H04N5/44 ,  H04N5/62 ,  H04N5/63 ,  H04N7/18 ,  H04N9/47 ,  H04B1/10 ,  H04B15/06 ,  H05K1/18 ,  H03J1/00 ,  H03J3/00 ,  H03J5/00

CPC分类号： C03C13/04 ,  H03D7/161 ,  H04N5/50 ,  H04N21/426

摘要： The level of the harmonics of oscillation signals for synchronous detection to be inputted to a mixer circuit for converting frequencies is suppressed low. A first integrated circuit component formed with a first mixer circuit for converting frequencies; a second integrated circuit component formed with a second mixer circuit for synchronously detecting intermediate frequency signals and an oscillator transistor circuit; a resonant circuit coupled to the oscillator transistor circuit and forming an oscillator circuit for synchronous detection; an intermediate frequency tuning circuit interposed between the first mixer circuit and the second mixer circuit; and a circuit board for mounting the first integrated circuit component, the second integrated circuit component the intermediate frequency tuning circuit and the resonant circuit in a predetermined block area are provided, wherein the resonant circuit is mounted on the side opposite to the side where the first integrated circuit component and the intermediate frequency tuning circuit are mounted as the second integrated circuit component is sandwiched.

摘要翻译： 要输入到用于转换频率的混频器电路的同步检测的振荡信号的谐波电平被抑制得低。 第一集成电路部件，形成有用于转换频率的第一混频器电路; 第二集成电路部件，形成有用于同步检测中频信号的第二混频器电路和振荡晶体管电路; 耦合到所述振荡晶体管电路并形成用于同步检测的振荡电路的谐振电路; 介于所述第一混频电路和所述第二混频电路之间的中频调谐电路; 以及用于将第一集成电路部件，第二集成电路部件，中频调谐电路和谐振电路安装在预定块区域中的电路板，其中，所述谐振电路安装在与所述第一集成电路部件相反的一侧 集成电路部件和中频调谐电路在第二集成电路部件夹持时被安装。

公开(公告)号：US5722050A

公开(公告)日：1998-02-24

申请号：US633644

申请日：1996-04-17

申请人： Jinsaun Chen

发明人： Jinsaun Chen

IPC分类号： H03J3/00 ,  H04B1/20 ,  H04H20/61 ,  H04R5/04 ,  H04B7/00

CPC分类号： H04H20/61 ,  H04B1/20 ,  H04R5/04 ,  H03J3/00 ,  H04R2420/07

摘要： A transmitter-receiver system including a transmitter unit installed in an audio equipment, and a receiver unit installed in an earphone, wherein the transmitter unit includes an automatic electric level regulator to regulate the electric level of the output signal of audio equipment to a predetermined range, a power control circuit controlled by the output signal of the audio equipment to provide the necessary working voltage, and an inductance antenna to transmit output signal from the audio equipment to the receiver unit; the receiver unit is of low working voltage design, including an automatic 24-time frequency divider circuit to effectively discriminate left and right sound tracks, and an auto-shut off circuit to automatically cut off power supply when the audio equipment does no work; the transmitter unit and the receiver unit further use a respective dual oscillation frequency regulating circuit consisting of an oscillating transistor, a dielectric resonator, and two variable resistors for regulating the range of the frequency.

公开(公告)号：US5673088A

公开(公告)日：1997-09-30

申请号：US565127

申请日：1995-11-30

申请人： Il-koo Nah

发明人： Il-koo Nah

IPC分类号： H03J3/00 ,  H04N5/46

CPC分类号： H04N5/46

摘要： A channel selection apparatus is provided for allowing receipt of signals broadcast according to the NTSC, SECAM and PAL broadcast modes. A controller discriminates the signal's broadcast mode based on the horizontal sync signal included in the received signal and alters a circuit connection path. Accordingly, a desired broadcast mode can be automatically selected without requiring any particular switch manipulation by a user. Further, a video signal processing path is separated from a sound signal processing path, in order to obtain excellent sound quality, even when receiving a stereo broadcast. Also, it is possible to easily automate the manufacturing process for the apparatus, thereby improving productivity.

摘要翻译： 提供了一种频道选择装置，用于允许接收根据NTSC，SECAM和PAL广播模式广播的信号。 控制器基于包括在接收信号中的水平同步信号来鉴别信号的广播模式并改变电路连接路径。 因此，可以自动选择期望的广播模式，而不需要用户进行任何特定的切换操作。 此外，即使在接收到立体声广播时，视频信号处理路径与声音信号处理路径分离，以便获得优良的声音质量。 此外，可以容易地使装置的制造过程自动化，从而提高生产率。

公开(公告)号：US5343414A

公开(公告)日：1994-08-30

申请号：US54408

申请日：1993-04-28

申请人： Safdar M. Asghar ,  Yan Zhou

发明人： Safdar M. Asghar ,  Yan Zhou

IPC分类号： G01R23/02 ,  H03H17/00 ,  H03J3/00 ,  H03J7/18 ,  H04B1/26 ,  H04Q1/30 ,  H04Q1/457 ,  H04Q1/46 ,  G06F15/31

CPC分类号： H04Q1/4575 ,  H04Q1/30 ,  H04Q1/46

摘要： An apparatus for adaptively tuning to a received periodic signal. The apparatus preferably employs digital signal processing techniques for algorithmic generation of a sinusoidal estimated output signal, determines the difference between the estimated output signal and the received signal, and generates an error signal based upon the difference between the estimated output signal and the received signal. The error signal is applied to vary at least one factor of the algorithmic determination of the estimated output signal appropriately to reduce the error between the estimated output signal and the received signal.

摘要翻译： 一种用于自适应地调谐到接收到的周期信号的装置。 该装置优选采用数字信号处理技术来产生正弦估计输出信号，确定估计的输出信号与接收信号之间的差值，并根据估计的输出信号与接收信号之差产生误差信号。 应用误差信号以适当地改变估计输出信号的算法确定的至少一个因素，以减小估计的输出信号和接收信号之间的误差。

公开(公告)号：US4805189A

公开(公告)日：1989-02-14

申请号：US829295

申请日：1986-02-13

申请人： Paul F. Mahoney

发明人： Paul F. Mahoney

IPC分类号： H04L27/06 ,  G01R23/14 ,  G01R27/02 ,  H03J3/00 ,  H04B7/15 ,  H04B7/212 ,  H04B17/00 ,  H04J3/06 ,  H04J3/14 ,  H04B3/46

CPC分类号： G01R23/145 ,  G01R27/02

摘要： A signal processing system for measuring the amplitude and time delay responses of a network over the bandwidth allocated to the network wherein a plurality of subburst signals each in the form of a suppressed-carrier, amplitude-modulated signal, is applied to the network. The signals received from the network are provided in complex form having in-phase and quadrature components. Matched filters respond to such components and the matched filter outputs are processed so as to determine the estimated amplitude and time delay responses of the network at the carrier frequency of the subburst signals over the operating bandwidth of the network.

摘要翻译： 一种用于在分配给网络的带宽上测量网络的幅度和时间延迟响应的信号处理系统，其中以网络为单位施加抑制载波幅度调制信号形式的多个次突发信号。 从网络接收的信号以具有同相和正交分量的复杂形式提供。 匹配的滤波器响应于这样的组件，并且对匹配的滤波器输出进行处理，以便确定网络在网络的工作带宽上的副突发信号的载波频率处的估计的幅度和时间延迟响应。

公开(公告)号：US4619000A

公开(公告)日：1986-10-21

申请号：US654201

申请日：1984-09-24

申请人： John Ma

发明人： John Ma

IPC分类号： H03D7/16 ,  H03J3/00 ,  H04B1/18 ,  H03J1/16

CPC分类号： H03D7/161 ,  H03J3/00

摘要： The disclosure describes an improved CATV converter that incorporates an intermediate frequency filter and amplifier unit that includes first and second tunable circuits. Each tunable circuit has a fixed capactive element and a variable inductance means for tuning the tunable circuit. The first and second tuned circuit are transmissively coupled to one another through a slit in a shield which otherwise shields one tunable circuit from another. The intermediate frequency filter and amplifier unit also includes an FET for amplifying a narrow band intermediate frequency signal and a third tunable circuit comprising the output capacitance of the FET and a variable inductance means for tuning the third tunable circuit.

摘要翻译： 本公开描述了一种改进的CATV转换器，其包括中频滤波器和放大器单元，其包括第一和第二可调谐电路。 每个可调谐电路具有固定的有源元件和用于调谐可调谐电路的可变电感装置。 第一和第二调谐电路通过屏蔽中的狭缝彼此透射耦合，否则屏蔽另一个可调谐电路。 中频滤波器和放大器单元还包括用于放大窄带中频信号的FET和包括FET的输出电容的第三可调电路和用于调谐第三可调电路的可变电感装置。

公开(公告)号：US4325040A

公开(公告)日：1982-04-13

申请号：US210789

申请日：1980-11-26

申请人： George J. Whitley

发明人： George J. Whitley

IPC分类号： G01R27/26 ,  G01R35/00 ,  H01F17/02 ,  H03J7/02 ,  H03J3/00

CPC分类号： H01F17/02 ,  G01R27/2611 ,  G01R35/005 ,  H03J7/02

摘要： Disclosed is an apparatus for adjusting an inductor that is mounted on a circuit board. The inductor is of the type comprising two extensible sections connected at one respective end to the circuit board and connected at the other respective end by a connecting portion integral to the inductor. The electrical value of the inductor is adjusted by mechanically engaging the connecting portion between first and second push rods and moving the connecting portion so as to simultaneously extend or compress the two extensible sections. The first push rod extends through an opening in the circuit board to apply mechanical force against the connecting portion and the second push rod extends from above the circuit board so as to clamp the connecting portion between the first and second push rods. In one embodiment, the linear displacement of the first push rod is controllable to selectively advance or retract the first push rod, while the second push rod exerts a substantially constant force sufficient to collapse the two extensible sections of the inductor to the extent permitted by the linear displacement of the first push rod.

摘要翻译： 公开了一种用于调整安装在电路板上的电感器的装置。 该电感器的类型包括两个可伸缩部分，该部分在一个相应的端部连接到电路板，并且在另一个端部处通过与电感器成一体的连接部分连接。 电感器的电气值通过机械地接合第一和第二推杆之间的连接部分并移动连接部分来同时延伸或压缩两个可延伸部分来调节。 第一推杆延伸穿过电路板中的开口以对连接部分施加机械力，第二推杆从电路板上方延伸，以将连接部分夹紧在第一和第二推杆之间。 在一个实施例中，第一推杆的线性位移是可控制的，以选择性地前进或缩回第一推杆，而第二推杆施加足以将电感器的两个可延伸部分折叠到基本恒定的力，达到 第一推杆的线性位移。