Attenuator circuit
    11.
    发明专利
    Attenuator circuit 失效
    衰减器电路

    公开(公告)号:JPS59128810A

    公开(公告)日:1984-07-25

    申请号:JP457083

    申请日:1983-01-13

    IPC分类号: H03H7/24 H03H19/00

    CPC分类号: H03H19/008

    摘要: PURPOSE:To deliver selectively both the attenuation quantity and frequency characteristics to both ends of the 2nd resistance by grounding an input signal via the 1st resistance, a capacitor and the 2nd resistance in series and at the same time grounding the joint of the 1st resistance and the capacitor via the 3rd resistance and a changeover switch. CONSTITUTION:A signal source 11 is grounded via a resistance R11, a capacitor C11 and a resistance R13 in series; while the joint of the R11 and the C11 is grounded via a resistance R12 and a switch S11 in series. Then the output signals E12 are extracted from both ends of the R13. Thus it is possible to obtain an attenuator circuit which can deliver selectively both the attenuation quantity and frequency characteristics by means of the switch S11.

    摘要翻译: 目的:通过第一个电阻,一个电容器和第二个电阻串联接地输入信号,同时将第一个电阻和第二个电阻的接点接地,从而选择性地将衰减量和频率特性两端传递到第二个电阻的两端 电容通过第3电阻和转换开关。 构成:信号源11通过电阻R11,电容器C11和电阻R13串联接地; 而R11和C11的接头通过电阻R12和开关S11串联接地。 然后从R13的两端提取输出信号E12。 因此,可以获得能够通过开关S11选择性地递送衰减量和频率特性的衰减器电路。

    再構成可能なキャリアアグリゲーション受信器およびフィルタ
    12.
    发明专利
    再構成可能なキャリアアグリゲーション受信器およびフィルタ 审中-公开
    可重新配置的载波聚集接收机和滤波器

    公开(公告)号:JP2017506012A

    公开(公告)日:2017-02-23

    申请号:JP2016537560

    申请日:2014-12-18

    IPC分类号: H04B1/00 H03H11/12 H04B1/40

    摘要: デバイスは、第1のキャリアおよび第2のキャリアを有する通信信号を受け取るように構成される再構成可能なベースバンドフィルタであって、第1のキャリアおよび第2のキャリアが非連続的なそれぞれの周波数を有し、再構成可能なベースバンドフィルタが第1のフィルタ部および第2のフィルタ部を有し、第1のフィルタ部および第2のフィルタ部の各々がそれぞれの第1および第2の増幅段を備える、再構成可能なベースバンドフィルタと、第1のフィルタ部および第2のフィルタ部に関連する複数のスイッチであって、再構成可能なベースバンドフィルタを、各々が低域通過フィルタ出力および帯域通過フィルタ出力のうちの少なくとも1つを生成するように構成される複数の下位フィルタへと構成するための複数のスイッチとを含む。

    摘要翻译: 设备是被配置为接收通信信号具有第一载波和第二载波,所述第一载波和所述第二载波的非邻接的,分别可重构基带滤波器 它有一个可重新配置的频率基带滤波器的第一过滤器部分和第二过滤器部分,第一过滤器部分和第二过滤器部分,每个第一和第二相应的 它包括放大级,以及可重新配置的基带滤波器,所述第一与所述过滤器单元和第二过滤器部分和多个开关,可重新配置的基带滤波器,每个低通滤波器 和用于配置成多个下部过滤器的多个开关被配置为产生所述输出和所述带通滤波器的输出中的至少一个。

    Low-noise and detailed frequency adjustment
    14.
    发明专利
    Low-noise and detailed frequency adjustment 有权
    低噪声和详细的频率调整

    公开(公告)号:JP2007060649A

    公开(公告)日:2007-03-08

    申请号:JP2006208096

    申请日:2006-07-31

    IPC分类号: H03K3/017 H03K7/08

    CPC分类号: H03H19/008 H03L1/00 H03L1/026

    摘要: PROBLEM TO BE SOLVED: To provide a circuit, a method and an apparatus for performing the adjusting of an electronic circuit with low noise and a high resolution.
    SOLUTION: According to one embodiment of this invention, a capacitance value is adjusted by performing pulse width modulation to a control voltage applied to a switch which exists in series with a capacitor. The pulse width modulation of a control signal can be adjusted by using an entry stored in a lookup table based on the appropriate method such as using an analog or digital control signal. The frequency response and characteristics of the electronic circuit are adjusted by changing the capacitance values. The frequency response may be a configuration which does not change according to conditions of a temperature, a power supply voltage or processing.
    COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种用于执行低噪声和高分辨率的电子电路调整的电路,方法和装置。 解决方案:根据本发明的一个实施例,通过对施加到与电容器串联存在的开关的控制电压进行脉宽调制来调整电容值。 可以基于诸如使用模拟或数字控制信号的适当方法,通过使用存储在查找表中的条目来调整控制信号的脉宽调制。 通过改变电容值来调节电子电路的频率响应和特性。 频率响应可以是根据温度,电源电压或处理的条件不改变的配置。 版权所有(C)2007,JPO&INPIT

    Time constant circuit
    16.
    发明专利
    Time constant circuit 失效
    时间恒定电路

    公开(公告)号:JPS6153811A

    公开(公告)日:1986-03-17

    申请号:JP17496384

    申请日:1984-08-24

    申请人: Hitachi Ltd

    发明人: SATO TETSUO

    IPC分类号: H03H7/06 H03H11/04

    CPC分类号: H03H19/008 H03H1/02 H03H7/345

    摘要: PURPOSE:To switch a time constant by an easy method by controlling the resistance value of a pinch resistance connected to a resistance in parallel by a control voltage, and varying the composite resistance of the resistance and pinch resistance and varying the time constant determined associatively with a capacitor. CONSTITUTION:A time constant circuit 1 consists of a resistance R1, capacitor C1, and pinch resistance Rp, and electronic switches S1 and S2 are provided as a means for varying the resistance value of the resistance Rp. For example, the resistance Rp becomes infinite when the switch S1 is turned on. In this case, the circuit 1 consists of the resistance R1 and capacitor C1 as shown in a figure and its time constant T is T=R1.C1. When the switch S1 is off and the switch S2 is turned on, on the other hand, the resistance Rp has a resistance value corresponding to a control voltage V2 and the parallel resistance of the resistances R1 and Rp is formed, so that the circuit 1 changes into circuit constitution shown in a figure C. Therefore, the response of an output signal Vout to variation of an input signal Vin is speeded up.

    摘要翻译: 目的:通过简单的方法切换时间常数,通过控制电压并联连接到电阻的电阻值的电阻值,并改变电阻和钳位电阻的复合电阻,并改变与 一个电容器。 构成:时间常数电路1由电阻R1,电容器C1和钳位电阻Rp组成,电子开关S1和S2被设置为用于改变电阻Rp的电阻值的装置。 例如,当开关S1导通时,电阻Rp变为无穷大。 在这种情况下,电路1由如图所示的电阻R1和电容器C1组成,其时间常数T为T = R1.C1。 另一方面,当开关S1断开并且开关S2接通时,电阻Rp具有对应于控制电压V2的电阻值,并且形成电阻R1和Rp的并联电阻,使得电路1 改变为图C所示的电路结构。因此,输出信号Vout对输入信号Vin的变化的响应被加速。