公开(公告)号：US1728596A

公开(公告)日：1929-09-17

申请号：US2005725

申请日：1925-04-02

申请人： KELLOGG SWITCHBOARD & SUPPLY

发明人： CURRIER HIRAM D

IPC分类号： H01F21/06 ,  H03J3/24

CPC分类号： H03J3/24 ,  H01F21/065

公开(公告)号：US1676256A

公开(公告)日：1928-07-10

申请号：US75037724

申请日：1924-11-17

申请人： EDELMAN PHILIP E

发明人： EDELMAN PHILIP E

IPC分类号： H03J3/24

CPC分类号： H03J3/24

公开(公告)号：US09019039B1

公开(公告)日：2015-04-28

申请号：US13644632

申请日：2012-10-04

申请人： Space Systems/Loral, Inc.

发明人： Slawomir J. Fiedziuszko ,  Stephen C. Holme ,  Stephen D. Berry

IPC分类号： H01P5/12 ,  H01P1/20 ,  H03H7/46 ,  H01P1/215

CPC分类号： H01P1/215 ,  H03H7/0123 ,  H03H7/0161 ,  H03J3/185 ,  H03J3/22 ,  H03J3/24

摘要： An RF bandpass filter includes a cascaded series of a first subfilter and a second subfilter. Each subfilter includes a respective inverter, voltage-controlled capacitor and inductor. A first selected one of the first subfilter and the second subfilter is a pseudo low pass filter and a second selected one of the first subfilter and the second subfilter is a pseudo high pass filter. The RF bandpass filter is configured to separately control a bandwidth and center frequency of output RF energy. The bandwidth may be controlled to be substantially fixed over a significant substantial range. The center frequency and bandwidth are controlled by adjusting a voltage input to one or more of the voltage-controlled capacitors.

摘要翻译： RF带通滤波器包括第一子滤波器和第二子滤波器的级联串联。 每个子滤波器包括相应的反相器，压控电容器和电感器。 第一子滤波器和第二子滤波器中的第一选择的一个是伪低通滤波器，第一子滤波器和第二子滤波器中的第二选择的一个是伪高通滤波器。 RF带通滤波器被配置为分别控制输出RF能量的带宽和中心频率。 可以将带宽控制为在相当大的范围内基本固定。 通过调节输入到一个或多个压控电容器的电压来控制中心频率和带宽。

公开(公告)号：US20100053836A1

公开(公告)日：2010-03-04

申请号：US12450415

申请日：2008-03-26

申请人： Lincheng Xiu ,  John James Fitzpatrick

发明人： Lincheng Xiu ,  John James Fitzpatrick

IPC分类号： H02H9/04

CPC分类号： H03H2/008 ,  H01Q1/247 ,  H01Q1/50 ,  H03F1/52 ,  H03F3/189 ,  H03H3/06 ,  H03H7/0138 ,  H03J3/06 ,  H03J3/24 ,  H04H40/90 ,  H04N7/20

摘要： An architecture for protecting circuitry used for signal communications between a frequency translation module (20) and a decoder (60) from transient voltage surges. According to an exemplary embodiment, the apparatus comprises a first signal path between a transmission line and a first reference potential, comprising a high impedance negative surge path; and a second signal path between the transmission line and the first reference potential, comprising a high impedance positive surge path, a low inductance surge path and a DC blocker circuit, wherein said high impedance positive surge path is configured in series with said low inductance surge path and said DC blocker circuit, wherein each of said low inductance surge path and said DC blocker circuit are coupled between said high impedance positive surge path and said source of reference potential.

摘要翻译： 一种用于保护用于频率转换模块（20）和解码器（60）之间的信号通信的电路与瞬态电压浪涌的架构。 根据示例性实施例，该装置包括传输线和第一参考电位之间的第一信号路径，包括高阻抗负浪涌路径; 以及传输线和第一参考电位之间的第二信号路径，包括高阻抗正浪涌路径，低电感浪涌路径和DC阻断电路，其中所述高阻抗正浪涌路径被配置为与所述低电感浪涌串联 路径和所述DC阻断电路，其中所述低电感浪涌路径和所述DC阻断电路中的每一个耦合在所述高阻抗正浪涌路径和所述参考电位源之间。

公开(公告)号：US20070183014A1

公开(公告)日：2007-08-09

申请号：US11461530

申请日：2006-08-01

申请人： Francesco Coppola ,  Stefano Cipriani ,  Lorenzo Carpineto ,  Gianni Puccio ,  Eric Duvivier ,  Biagio Bisanti ,  Martin Alderton

发明人： Francesco Coppola ,  Stefano Cipriani ,  Lorenzo Carpineto ,  Gianni Puccio ,  Eric Duvivier ,  Biagio Bisanti ,  Martin Alderton

IPC分类号： G02B26/00 ,  G02F1/35 ,  G02F1/00 ,  G02F1/01 ,  G02F2/02

CPC分类号： H03J5/244 ,  G06F1/06 ,  H03H11/1291 ,  H03J1/005 ,  H03J3/24 ,  H03J7/065 ,  H03J7/08 ,  H03J2200/10 ,  H03J2200/17 ,  H03L7/0891 ,  H03L7/093 ,  H03L7/099 ,  H03L7/10 ,  H03L7/1974 ,  H03L7/1976 ,  H03L7/22 ,  H03L7/23 ,  H03L2207/06

摘要： A multiple frequency source system includes at least one frequency source tunable to a predefined target frequency, and at least one additional frequency source operable to generate a second signal at a frequency which is either higher or lower than the target frequency. A method for tuning the tunable frequency source to the target frequency during concurrent generation of the second signal includes (i) controlling the tunable frequency source to tune to at least one frequency point frequency lower than the target frequency, and thereafter controlling the oscillator to tune to the target frequency, when the second signal is higher in frequency than the target frequency, or (ii) controlling the tunable frequency source to tune to at least one frequency point higher than the target frequency, and thereafter controlling the tunable frequency source to tune to the target frequency, when the second signal is lower in frequency than the target frequency.

摘要翻译： 多频率源系统包括可调谐到预定目标频率的至少一个频率源，以及可操作以产生频率高于或低于目标频率的第二信号的至少一个附加频率源。 一种在并行产生第二信号期间将可调谐频率源调谐到目标频率的方法包括（i）控制可调谐频率源调谐到低于目标频率的至少一个频率点，然后控制振荡器调谐 到目标频率，当第二信号的频率高于目标频率时，或者（ii）控制可调频率源调谐到比目标频率高的至少一个频率点，然后控制可调频率源调谐 当第二信号的频率低于目标频率时，到目标频率。

公开(公告)号：US20070176663A1

公开(公告)日：2007-08-02

申请号：US11461533

申请日：2006-08-01

申请人： Biagio Bisanti ,  Stefano Cipriani ,  Lorenzo Carpineto ,  Gianni Puccio ,  Eric Duvivier ,  Francesco Coppola ,  Martin Alderton

发明人： Biagio Bisanti ,  Stefano Cipriani ,  Lorenzo Carpineto ,  Gianni Puccio ,  Eric Duvivier ,  Francesco Coppola ,  Martin Alderton

IPC分类号： G06F1/04

CPC分类号： H03J5/244 ,  G06F1/06 ,  H03H11/1291 ,  H03J1/005 ,  H03J3/24 ,  H03J7/065 ,  H03J7/08 ,  H03J2200/10 ,  H03J2200/17 ,  H03L7/0891 ,  H03L7/093 ,  H03L7/099 ,  H03L7/10 ,  H03L7/1974 ,  H03L7/1976 ,  H03L7/22 ,  H03L7/23 ,  H03L2207/06

摘要： A tunable multiple frequency source system employing offset signal phasing includes a first frequency source, a phase delay element, and a second frequency source configured to operate concurrently with the first frequency source. The first frequency source includes an input coupled to receive a reference input signal and an output for providing a first frequency source signal. The phase delay includes an input coupled to receive the input reference signal, and an output, the phase delay element operable to apply a predefined phase delay to the input reference signal to produce a phase-delayed input signal. The second frequency source includes an input coupled to receive the phase-delayed input signal and an output for providing a second frequency source signal.

摘要翻译： 采用偏移信号定相的可调多频源系统包括被配置为与第一频率源同时运行的第一频率源，相位延迟元件和第二频率源。 第一频率源包括耦合以接收参考输入信号的输入和用于提供第一频率源信号的输出。 相位延迟包括耦合以接收输入参考信号的输入和输出，相位延迟元件可操作以将预定相位延迟施加到输入参考信号以产生相位延迟的输入信号。 第二频率源包括耦合以接收相位延迟的输入信号的输入和用于提供第二频率源信号的输出。

公开(公告)号：US07120407B2

公开(公告)日：2006-10-10

申请号：US10494654

申请日：2001-11-16

申请人： Hiroshi Miyagi

发明人： Hiroshi Miyagi

IPC分类号： H04B1/18

CPC分类号： H03L7/0805 ,  H03J1/005 ,  H03J3/24 ,  H03L7/099 ,  H03L7/18 ,  H04B17/20

摘要： A receiver such that the period required for tracking adjustment, temperature compensation is not needed, and tracking errors due to fluctuation of the power supply voltage are prevented from increasing, and a tracking adjusting method for the receiver. A DAC 4 generates a voltage according to the value of data (Do) inputted from an MPU 81 by using a control voltage outputted from a low-pass filter 35 in a local oscillator 3 as a reference voltage used during digital-analog conversion. A multiplier circuit 5 analog-multiplies the output voltage of the DAC 4 by a predetermined multiplier. The output voltage of the multiplier circuit 5 is applied as a tuning voltage to a high-frequency tuning circuit 20. In an EEPROM 84 stored is the value of the input data (Do) of the DAC 4 which has been measured in advance and corresponds to the tuned voltage of when the tracking error is the minimum at the central value of the local oscillation frequency, and the MPU 81 reads the data (Do) from the EEPROM 84 and inputs it to the DAC 4.

摘要翻译： 使得不需要跟踪调整所需的周期，不需要温度补偿以及由于电源电压波动引起的跟踪误差的接收机增加，以及用于接收机的跟踪调整方法。 DAC4通过使用从本地振荡器3中的低通滤波器35输出的控制电压作为在数字 - 模拟转换期间使用的参考电压，根据从MPU81输入的数据（Do）的值产生电压。 乘法器电路5将DAC4的输出电压模拟乘以预定的乘法器。 乘法器电路5的输出电压作为调谐电压施加到高频调谐电路20。 在存储的EEPROM 84中，预先测量的DAC4的输入数据（Do）的值对应于在本地振荡频率的中心值处的跟踪误差为最小值时的调谐电压， MPU 81从EEPROM 84读取数据（Do）并将其输入到DAC4。

公开(公告)号：US20050189999A1

公开(公告)日：2005-09-01

申请号：US11025781

申请日：2004-12-29

申请人： Andreia Cathelin ,  Stephane Razafimandimby ,  Didier Belot ,  Jean-Francois Carpentier

发明人： Andreia Cathelin ,  Stephane Razafimandimby ,  Didier Belot ,  Jean-Francois Carpentier

IPC分类号： H03B5/36 ,  H03J3/18 ,  H03J3/20 ,  H03J3/24 ,  H03L5/00 ,  H03L7/00 ,  H03L7/099

CPC分类号： H03L7/0805 ,  H03B5/366 ,  H03H2009/02204 ,  H03J3/185 ,  H03J3/20 ,  H03J3/22 ,  H03J3/24 ,  H03L5/00 ,  H03L7/00 ,  H03L7/099

摘要： An integrated electronic circuit comprises at least first and second variable resonator elements that can be tuned by means of an electric signal (Vtune) and that are arranged on the same silicon substrate, and that are respectively integrated into a Master circuit and a Slave circuit. Each resonator element is associated with a first inductive partner element set in the vicinity of the resonant and antiresonant frequencies; and with a second capacitive partner element, at least one of said partner elements being adjustable by means of said electric signal (Vtune). Controlling both partner elements could be done either by means of an adjustable capacitor, as a varactor, or by means of an inductor, passive or active, fixed or variable.

摘要翻译： 集成电子电路包括至少第一和第二可变谐振器元件，其可以通过电信号（V调谐）进行调谐，并且被布置在相同的硅衬底上，并且分别集成到 主电路和从电路。 每个谐振器元件与在谐振和反谐振频率附近设置的第一感应对象元件相关联; 并且利用第二电容性伙伴元件，所述对方元件中的至少一个可通过所述电信号（V调谐）调节。 控制两个伙伴元素可以通过可调电容器，变容二极管或通过电感器，被动或主动，固定或可变的方式完成。

公开(公告)号：US6021322A

公开(公告)日：2000-02-01

申请号：US976432

申请日：1997-11-21

申请人： Shigeru Hatada ,  Yukio Suzuki

发明人： Shigeru Hatada ,  Yukio Suzuki

IPC分类号： H04B1/26 ,  H03J3/24 ,  H03J3/32 ,  H04B1/18 ,  H03B5/08

CPC分类号： H03J3/24

摘要： In an AM radio receiver, a radio-frequency tuning circuit comprises a tuning coil, and variable capacitance diode elements connected to the tuning coil; a local oscillator circuit comprises an oscillator coil, a variable capacitance diode element connected in parallel with the oscillator coil, and a capacitance element connected in series with the oscillator coil; and tuning voltage is applied from a variable voltage source to the variable capacitance diode elements of the high-frequency tuning circuit, and to the variable capacitance diode element of the local oscillator circuit through a voltage adjustment circuit connected to the variable voltage source and a reference voltage source.

摘要翻译： 在AM无线电接收机中，射频调谐电路包括调谐线圈和连接到调谐线圈的可变电容二极管元件; 本地振荡电路包括振荡器线圈，与振荡器线圈并联连接的可变电容二极管元件和与振荡器线圈串联连接的电容元件; 并且调谐电压从可变电压源施加到高频调谐电路的可变电容二极管元件，并通过连接到可变电压源的电压调节电路和参考电压施加到本地振荡器电路的可变电容二极管元件 电压源。

公开(公告)号：US4785253A

公开(公告)日：1988-11-15

申请号：US40952

申请日：1987-04-21

申请人： John B. Hughes

发明人： John B. Hughes

IPC分类号： H03H11/04 ,  H03H11/12 ,  H03J3/24 ,  H03K5/00 ,  H04B1/10

CPC分类号： H03H11/12 ,  H03J3/24

摘要： An integrated electrical filter includes resistors (R10-12) and capacitors (C10-12). The capacitors are controllable in value by means of a control circuit (100-109) and are formed by a binary weighted array of capacitor elements which are selectively connectable in parallel. A controlled oscillator (103) or a controlled phase shifting network (113) includes a capacitor of the same form as the filter capacitors. The oscillator (103) or phase shifter (113) form part of a phase locked loop (101, 104, 105, 107) which produces a digital code as its control signal at the output of an up/down counter (107). This digital code is latched in a register (109) to provide a control signal for the filter capacitors and also is used directly to control the capacitor(s) in the controlled oscillator or phase shifter.

摘要翻译： 集成电动滤波器包括电阻（R10-12）和电容（C10-12）。 电容器通过控制电路（100-109）在数值上是可控的，并且由可并联选择性连接的电容器元件的二进制加权阵列形成。 受控振荡器（103）或受控相移网络（113）包括与滤波电容器相同形式的电容器。 振荡器（103）或移相器（113）形成锁相环（101,104,105,107）的一部分，其在升/降计数器（107）的输出端产生数字码作为其控制信号。 该数字代码被锁存在寄存器（109）中以提供滤波电容器的控制信号，并且还被直接用于控制受控振荡器或移相器中的电容器。