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1. 发明专利

JP2008098906A Floating active inductor 审中-公开
标题翻译：浮动有源电感器
公开(公告)号：JP2008098906A
公开(公告)日：2008-04-24
申请号：JP2006277645
申请日：2006-10-11
申请人： General Res Of Electronics Inc , 株式会社ゼネラルリサーチオブエレクトロニックス
发明人： KAWAI KAZUO
IPC分类号： H03H11/48
摘要： PROBLEM TO BE SOLVED: To provide a floating active inductor in which the number of operational amplifiers is reduced as compared with the known one, which has simplified circuit constitution, and whose internal circuit constitution is made simpler.
SOLUTION: The floating active inductor includes: a primary passive all-pass phase advancing circuit 3 of a four-element bridge circuit type connected between first and second input terminals 1 and 2; a voltage follower which performs unit gain amplification of the output phase-advanced signal of the passive all-pass phase advancing circuit 3; a phase inverting circuit 5 which inverts and amplifies the output phase-advanced signal of the voltage follower 4; a first resistance 6 with a low resistance value connected between the output of the voltage follower 4 and the first input terminal 1; and a second resistance 7 with a low resistance value connected between the output of the phase inverting circuit 5 and the second input terminal 2. In the bridge circuit, two elements are two resistances 3(1) and 3(2) with equal high resistance values connected in series between the first and second input terminals 1 and 2 and other two elements are a capacitor 3(3) and a resistance 3(4) connected in series between the first and second input terminals 1 and 2, where the phase advanced signal is obtained from the connection point between the capacitor 3(3) and resistance 3(4).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种浮动有源电感器，其中运算放大器的数量与已知的运算放大器的数量相比有所减少，其中电路结构简化，其内部电路结构变得更简单。解决方案：浮动有源电感器包括：连接在第一和第二输入端子1和2之间的四元件桥式电路的主无源全通相位提前电路3; 电压跟随器，其执行无源全通相位提前电路3的输出相位提前信号的单位增益放大; 相位反相电路5，其反相和放大电压跟随器4的输出相位超前信号; 连接在电压跟随器4的输出端和第一输入端子1之间的具有低电阻值的第一电阻6; 以及连接在相位反相电路5的输出与第二输入端子2之间的低电阻值的第二电阻7.在桥式电路中，两个元件是两个具有相同高电阻的电阻3（1）和3（2）串联连接在第一和第二输入端子1和2和其它两个元件之间的值是在第一和第二输入端子1和2之间串联连接的电容器3（3）和电阻器3（4），其中相位提前信号从电容器3（3）和电阻3（4）之间的连接点获得。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008072637A Phase comparison signal processing circuit 审中-公开
标题翻译：相位比较信号处理电路
公开(公告)号：JP2008072637A
公开(公告)日：2008-03-27
申请号：JP2006251536
申请日：2006-09-15
申请人： General Res Of Electronics Inc , 株式会社ゼネラルリサーチオブエレクトロニックス
发明人： KAWAI KAZUO
IPC分类号： H03K5/00 , H03K5/1532 , H03L7/089 , H03L7/093
摘要： PROBLEM TO BE SOLVED: To provide a phase comparison processing circuit capable of shortening a synchronization time by widening a frequency width that can be pulled in by a PLL, with simple circuit configuration when processing an output rectangular wave signal of a phase comparison circuit. SOLUTION: The phase comparison signal processing circuit includes: a voltage shifter 2 which converts an input rectangular wave signal into a bipolar signal; a control pulse signal generator 7 which generates a control pulse signal when a level of the input rectangular wave signal changes; an integration circuit 3 which resets an integration value when the control pulse signal comes, integrates the bipolar signal thereafter and outputs the integration value; a differentiation circuit 4 which outputs a level change component in resetting the integration value as a differentiation pulse; a gate circuit 6 which outputs the differentiation pulse when the control pulse signal comes; and a hold circuit 8 which forms a hold signal to sequentially change a held voltage value while holding a latest input differentiation pulse level in the hold circuit so as to hold the differentiation pulse level when updating the differentiation pulse level, and the hold signal is supplied to a loop filter of the following stage. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种相位比较处理电路，其能够通过在对相位比较的输出矩形波信号进行处理时以简单的电路配置来缩短由PLL拉入的频率宽度来缩短同步时间电路。相位比较信号处理电路包括：将输入的矩形波信号转换为双极性信号的电压移位器2; 控制脉冲信号发生器7，当输入的矩形波信号的电平改变时产生控制脉冲信号; 当控制脉冲信号到来时复位积分值的积分电路3，此后对双极性信号进行积分并输出积分值; 差分电路4，其在将积分值复位为微分脉冲时输出电平变化分量; 门控电路6，其在控制脉冲信号到来时输出微分脉冲; 以及保持电路8，其形成保持信号，以在保持电路中保持最新输入微分脉冲电平的同时顺次改变保持电压值，以便在更新微分脉冲电平时保持微分脉冲电平，并且保持信号被提供到下一阶段的环路滤波器。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2007329573A Transceiver for short-distance radio transmission 审中-公开
标题翻译：短距离无线电传输收发器
公开(公告)号：JP2007329573A
公开(公告)日：2007-12-20
申请号：JP2006157449
申请日：2006-06-06
申请人： General Res Of Electronics Inc , 株式会社ゼネラルリサーチオブエレクトロニックス
发明人： YOKOYAMA NOBUAKI
IPC分类号： H04B1/40
CPC分类号： H03J1/005 , H03J1/0091
摘要： PROBLEM TO BE SOLVED: To provide a short-distance radio transmission transceiver where a frequency scan signal receiver R and a signal transmitter T are integrated, a PLL oscillator used for the receiver R is used together with the transmitter T, circuit configuration is simple, and manufacturing cost is low.
SOLUTION: There are provided a frequency scan signal receiver R for searching for an unused channel frequency by the frequency scan of reception electric waves, and a signal transmitter T, by using the searched unused channel frequency to transmit transmission electric waves. The receiver R successively changes the frequency of the PLL oscillator by the control of a control unit 14 and searches for the presence or absence of a reception frequency in a prescribed frequency band from the output state of a carrier detector 13. When the control unit 14 detects an unused channel frequency, the receiver R fixes the oscillation frequency of the PLL oscillator to that corresponding to the unused channel frequency, and supplies the fixed oscillation frequency to a transmitter T. The transmitter T forms a transmission signal with the supplied oscillation frequency as a local oscillation signal, and transmits the transmission signal, having the same channel frequency, as the unused channel frequency as the transmission radio wave.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供集成频率扫描信号接收机R和信号发射器T的短距离无线电发射收发器，用于接收机R的PLL振荡器与发射机T一起使用，电路配置简单，制造成本低。解决方案：提供了一种用于通过接收电波的频率扫描来搜索未使用的信道频率的频率扫描信号接收机R，以及信号发射机T，通过使用搜索到的未使用的信道频率来发送传输电波。接收器R通过控制单元14的控制连续地改变PLL振荡器的频率，并从载波检测器13的输出状态搜索规定频带中的接收频率的有无。当控制单元14 检测未使用的信道频率，接收机R将PLL振荡器的振荡频率固定为与未使用的信道频率相对应的振荡频率，并将固定的振荡频率提供给发射机T.发射机T以提供的振荡频率形成发射信号，发送本地振荡信号，并将具有相同信道频率的发送信号作为未使用信道频率发送为发送无线电波。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007221444A Active capacitor 审中-公开
标题翻译：主动电容器
公开(公告)号：JP2007221444A
公开(公告)日：2007-08-30
申请号：JP2006039475
申请日：2006-02-16
申请人： General Res Of Electronics Inc , 株式会社ゼネラルリサーチオブエレクトロニックス
发明人： KAWAI KAZUO
IPC分类号： H03H11/48
CPC分类号： H03H11/481
摘要： PROBLEM TO BE SOLVED: To provide an active capacitor capable of remarkably simplifying a circuit configuration by using an active all-pass type 90 degree phase delaying circuit comprising an operational amplifier 2, a plurality of resistors and a reactance element, and varying a capacitance value by adjusting resistance values of resistors. SOLUTION: The active capacitor is provided with the active all-pass type 90 degree phase delaying circuit comprising an operational amplifier 2, a first resistor 3 connected between an inversion input end thereof and an input terminal 1, a second resistor 4 connected between a non-inversion input end thereof and the input terminal 1, a third resistor 5 connected between an output end thereof and the non-inversion input end, and a capacitor 6 connected between the non-inversion input end thereof and a ground point; and a fourth resistor 7 having a resistance value sufficiently lower than respective resistance values of the first-third resistors 3, 4, 5 connected between input and output terminals of the active all-pass type 90 degree phase delaying circuit and an impedance value of the capacitor 6. Thus, an equivalent capacitor is obtained between the input terminal and the ground point. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种有源电容器，其能够通过使用包括运算放大器2，多个电阻器和电抗元件的有源全通型90度相位延迟电路来显着简化电路配置，并且可变通过调整电阻的电阻值来计算电容值。有源电容器设置有有源全通型90度相位延迟电路，其包括运算放大器2，连接在其反相输入端和输入端1之间的第一电阻器3，连接的第二电阻器4 在其非反相输入端和输入端1之间连接有连接在其输出端和非反相输入端之间的第三电阻器5和连接在其非反相输入端和接地点之间的电容器6; 以及第四电阻器7，其电阻值充分低于连接在有源全通型90度相位延迟电路的输入和输出端子之间的第一至第三电阻器3,4,5的电阻值，以及阻抗值因此，在输入端子和接地点之间获得等效电容器。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2007135063A Antenna for direction finder 审中-公开
标题翻译：天线方向探测器
公开(公告)号：JP2007135063A
公开(公告)日：2007-05-31
申请号：JP2005327511
申请日：2005-11-11
申请人： General Res Of Electronics Inc , 株式会社ゼネラルリサーチオブエレクトロニックス
发明人： TAKAHASHI TERUO
IPC分类号： H01Q3/24 , G01S3/08 , H01Q21/29
CPC分类号： H01Q21/062
摘要： PROBLEM TO BE SOLVED: To provide a portable antenna with compact structure for direction finder in which a plurality of flexible whip antennas which can rotatably be set is used, directions of incoming radio waves are exactly found irrespective of frequency bands and polarization states of the incoming radio waves.
SOLUTION: The antenna for direction finder has an antenna mount 1 with one plane part 1a and four flexible whip antenna elements 3a-3d in which the plane part 1a is used as an antenna arrangement surface, rotatably arranged at the respective antenna arrangement points formed on one circumference on the antenna arrangement surface, the four flexible whip antenna elements 3a-3d can be rotatably set at an optional angle position in a sector area with an open angle of 180° perpendicular to the one circumference formed on the side of the antenna arrangement surface centering around the respective antenna arrangement points on the antenna arrangement surface.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于取向器的紧凑结构的便携式天线，其中可以可旋转地设置多个柔性鞭状天线，无论频带和偏振态如何，都精确地找到进入的无线电波的方向的无线电波。解决方案：用于取向器的天线具有天线安装件1，其具有一个平面部分1a和四个柔性鞭状天线元件3a-3d，其中平面部分1a用作天线布置表面，可旋转地布置在各个天线布置在天线布置表面的一个圆周上形成的点，四个柔性鞭状天线元件3a-3d可以可旋转地设置在与形成在侧面上的一个圆周垂直的180°的开口角度的扇形区域中的可选角度位置天线布置表面围绕天线布置表面上的各个天线布置点。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007101589A Binoculars 审中-公开
标题翻译：望远镜
公开(公告)号：JP2007101589A
公开(公告)日：2007-04-19
申请号：JP2005287509
申请日：2005-09-30
申请人： General Res Of Electronics Inc , 株式会社ゼネラルリサーチオブエレクトロニックス
发明人： IMAZEKI KAZUYOSHI , DAVE EDMONDSON
IPC分类号： G02B23/18 , G02B23/12
摘要： PROBLEM TO BE SOLVED: To provide binoculars constituted so that the user can select to view a front scene at the close distance or view an image displayed on a portable television while putting the binoculars on his/her eyes, and the user can avoid a trouble to busily watch a race.
SOLUTION: First optical elements 6 and 7 for transmitting the front scene are provided in one lens barrel 1, and an LCD array 5 for imaging the front scene on the surface of a CCD array 4 through second optical elements 8 and 9, then, photoelectrically converting the image of the front scene and displaying a video corresponding to the image is provided in the other lens barrel 2, and a CCD driving part 10, an LCD driving part 11, a one-circuit two-contact switch 12 which is made switchable from the outside, and an interface 14 which can be connected to the portable television 17 are provided in a mount 3 arranged between the two lens barrels 1 and 2. Regarding the one-circuit two-contact switch 12, a movable contact is connected to the LCD array 5 through the LCD driving part 11, and one fixed contact is connected to the CCD array 4 through the CCD driving part 10, and the other fixed contact is connected to the interface part 14.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供构成的双筒望远镜，使得用户可以选择在近距离观看前景或观看在便携式电视机上显示的图像，同时将双筒望远镜放在他/她的眼睛上，并且用户可以避免麻烦，忙着看一场比赛。解决方案：用于传输前景的第一光学元件6和7设置在一个透镜镜筒1中，以及LCD阵列5，用于通过第二光学元件8和9对CCD阵列4的表面上的前景进行成像，然后，在另一个镜筒2中设置光电转换前场景的图像并显示与图像相对应的视频，以及CCD驱动部10，LCD驱动部11，单回路双接触开关12 可以从外部切换，并且可以连接到便携式电视机17的接口14设置在布置在两个透镜筒1和2之间的安装件3中。关于单回路双触点开关12，可动触点通过LCD驱动部分11连接到LCD阵列5，并且一个固定触点通过CCD驱动部分10连接到CCD阵列4，另一个固定触点连接到接口部分14.版权所有：（C）2007，JPO＆INPIT

7. 发明专利

JP2007052198A Binoculars 审中-公开
标题翻译：望远镜
公开(公告)号：JP2007052198A
公开(公告)日：2007-03-01
申请号：JP2005236722
申请日：2005-08-17
申请人： General Res Of Electronics Inc , 株式会社ゼネラルリサーチオブエレクトロニックス
发明人： IMAZEKI KAZUYOSHI
IPC分类号： G02F1/13 , G09F9/00
CPC分类号： G02B23/18 , G02B23/12
摘要： PROBLEM TO BE SOLVED: To provide binoculars which enable a user to select whether to view nearby forward scenes or to view the videos of a portable television by using the binoculars merely by placing the binoculars on the eyes.
SOLUTION: The binoculars include a first CCD array 4 and a first LCD array 6 arranged within a lens-barrel 1 on one side, a second CCD array 5 and a second LCD array 7 arranged within a lens-barrel 2 on the other side, first and second CCD drives 8, 9 arranged within a mount 3 of the two lens-barrels 1, 2, first and second LCD drives 10, 11, externally operative first and second changeover switches 12, 13. and an interface 14 connected to the portable television tuner 19. The first and second changeover switches 12, 13 operate to form the imaging on the first and second CCD arrays 4, 5 on the first and second CCD arrays 4, 5 when the movable contact is changed over to one fixed contact. The switches operate to form the image from the portable television tuner 19 on the first and second LCD arrays 6, 7 when the movable contact is changed over to the other fixed contact.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供双眼望远镜，其使得用户仅通过将双筒望远镜放置在眼睛上才能使用双筒望远镜来选择是否观看附近的前景场景或观看便携式电视机的视频。双筒望远镜包括布置在一侧的镜筒1内的第一CCD阵列4和第一LCD阵列6，布置在镜筒2中的第二CCD阵列5和第二LCD阵列7 布置在两个透镜筒1,2的安装件3内的另一侧，第一和第二CCD驱动器8,9，第一和第二LCD驱动器10,11，外部操作的第一和第二切换开关12,13以及接口14 连接到便携式电视调谐器19.第一和第二转换开关12,13操作以在第一和第二CCD阵列4,5上的第一和第二CCD阵列4,5上形成成像，当可动触点切换到一个固定联系人。当可移动触点切换到另一个固定触点时，开关操作以从便携式电视调谐器19在第一和第二LCD阵列6,7上形成图像。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2008148047A Floating active reactor 审中-公开
标题翻译：浮动活性反应器
公开(公告)号：JP2008148047A
公开(公告)日：2008-06-26
申请号：JP2006333503
申请日：2006-12-11
申请人： General Res Of Electronics Inc , 株式会社ゼネラルリサーチオブエレクトロニックス
发明人： KAWAI KAZUO
IPC分类号： H03H11/48 , H01L21/822 , H01L27/04
摘要： PROBLEM TO BE SOLVED: To provide a floating active reactor capable of reducing the number of operational amplifiers to be used to greatly simplify the internal circuit structure.
SOLUTION: The floating active reactor is composed of a series circuit 3 which is constituted of first to forth impedance elements 3(1) to 3(4) connected between first and second input terminals 1 and 2, first and second voltage followers 4 and 5, and resistance elements 6 and 7 that have a low resistance value and are series-connected to output terminals of the first and second voltage followers. In the series circuit 3, the first and forth impedance elements 3(1) and 3(4) arranged in both sides or the second and third impedance elements 3(2) and 3(3) arranged in the middle of them are used as resistance elements that have the same low resistance value. The remainder are used as reactor elements that are the same type of elements and have the same reactance value. The input terminal of the first voltage follower 5 is connected to a first phase signal output terminal b, and its output terminal is connected to the first input terminal 1 through the resistance element 6. The input terminal of the second voltage follower 6 is connected to a second phase signal output terminal c, and its output terminal is connected to the second input terminal 2 through the resistance element 7. If a signal voltage applies between the first and the second input terminals 1 and 2, a floating active reactor is formed between them.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够减少用于大大简化内部电路结构的运算放大器的数量的浮动有源电抗器。解决方案：浮动有源电抗器由串联电路3组成，串联电路3由连接在第一和第二输入端子1和2之间的第一和第四阻抗元件3（1）至3（4）构成，第一和第二电压跟随器 4和5以及具有低电阻值并且串联连接到第一和第二电压跟随器的输出端子的电阻元件6和7。在串联电路3中，布置在两侧的第一和第四阻抗元件3（1）和3（4）或布置在其中间的第二和第三阻抗元件3（2）和3（3）被用作具有相同低电阻值的电阻元件。余数用作反应器元件，它们是相同类型的元件并且具有相同的电抗值。第一电压跟随器5的输入端子连接到第一相位信号输出端子b，其输出端子通过电阻元件6连接到第一输入端子1.第二电压跟随器6的输入端子连接到第二相位信号输出端子c，其输出端子通过电阻元件7连接到第二输入端子2.如果在第一和第二输入端子1和2之间施加信号电压，则在第一和第二输入端子1和2之间形成浮动有源电抗器，他们。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007300537A Active capacitor 审中-公开
标题翻译：主动电容器
公开(公告)号：JP2007300537A
公开(公告)日：2007-11-15
申请号：JP2006128349
申请日：2006-05-02
申请人： General Res Of Electronics Inc , 株式会社ゼネラルリサーチオブエレクトロニックス
发明人： KAWAI KAZUO
IPC分类号： H03H11/48
CPC分类号： H03H11/481
摘要： PROBLEM TO BE SOLVED: To provide an active capacitor wherein a primary all-pass type 90-degrees phase-advanced stage or 90-degrees phase-delayed stage is formed using discrete elements without using op amplifiers, thereby making it possible to enhance a usable frequency band.
SOLUTION: The active capacitor comprises an input terminal 1(1), a primary all-pass type 90-degrees phase-advanced stage 3 constituted of the discrete elements, and a phase inversion amplifying stage 4 and includes a constitution in which a signal supplied to the input terminal 1(1) is inputted to the primary all-pass type 90-degrees phase-advanced stage 3, a 90-degrees phase-advanced signal obtained at its output is inputted to the phase inversion amplifying stage 4 subsequent to the primary all-pass type 90-degrees phase-advanced stage 3 and phase-inversion amplified thereat, and an output produced from the phase inversion amplifying stage 4 is feedback-coupled to the input terminal 1(1). The resistance value of a load resistor 4(2) of the phase inversion amplifying stage 4 is adjusted in such a manner that the signal gain between an input end 3i of the primary all-pass type 90-degrees phase-advanced stage 3 and an output end 4o of the phase inversion amplifying stage 4 is brought to 1, whereby the active capacitor is configured so as to exhibit an equivalent capacitor when the inside of the circuit is seen from the input terminal 1(1).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种有源电容器，其中使用离散元件形成初级全通型90度相位超前级或90度相位延迟级，而不使用运算放大器，从而使得可以增强可用频带。有源电容器包括输入端子1（1），由离散元件构成的初级全通型90度相位提前级3和相位反转放大级4，并且包括其中提供给输入端1（1）的信号被输入到一次全通型90度相位提前级3，在其输出端获得的90度相位超前信号被输入到相位反相放大级4 在初级全通型90度相位超前级3之后，相位反相放大，并且从相位反相放大级4产生的输出反馈耦合到输入端1（1）。调整相位反转放大级4的负载电阻4（2）的电阻值，使得在全通过型90度相位超前级3的输入端3i与使相位反转放大级4的输出端4o为1，由此从输入端子1（1）看到电路内部时，有源电容器被配置为呈现等效的电容器。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007221252A Receiver input circuit 审中-公开
标题翻译：接收机输入电路
公开(公告)号：JP2007221252A
公开(公告)日：2007-08-30
申请号：JP2006036966
申请日：2006-02-14
申请人： General Res Of Electronics Inc , 株式会社ゼネラルリサーチオブエレクトロニックス
发明人： KAWAI KAZUO
IPC分类号： H03J3/20 , H03J3/24 , H04B1/18
CPC分类号： H03H7/38
摘要： PROBLEM TO BE SOLVED: To provide a receiver input circuit for maintaining impedance matching with an antenna feeder within all operating frequency bands and capable of configuring its parallel resonance circuits so as to have a multi-stage configuration without using an extra circuit part. SOLUTION: The receiver input circuit includes a constant resistance type branching filter 2, a coupling inductor 3, and a tuning circuit 4, the constant resistance type branching filter 2 comprises a low pass filter 6 and a high pass filter 7 where a termination resistor 6(3), 7(3) are connected, the low pass filter 6 and the high pass filter 7 have equal cut-off frequencies selected somewhat lower than frequencies in the operating frequency band, input terminals of the low pass filter 6 and the high pass filter 7 are connected in common to an input terminal 1(1) of the constant resistance type branching filter 2, the tuning circuit 4 includes a parallel resonance circuit comprising a tuning inductor 8(1) and a variable capacity diode 8(2), and the coupling inductor 3 is connected between an intermediate tap of inductor 7(2) of the high pass filter 7 and the input terminal of the parallel resonance circuit, and an output terminal of the parallel resonance circuit is connected to a high frequency circuit. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种接收机输入电路，用于在所有工作频带内保持与天线馈线的阻抗匹配，并且能够配置其并联谐振电路，以便具有多级配置而不使用额外的电路部分。
解决方案：接收器输入电路包括恒定电阻型分支滤波器2，耦合电感器3和调谐电路4，恒定电阻型分波器2包括低通滤波器6和高通滤波器7，其中端接电阻器6（3），7（3）连接，低通滤波器6和高通滤波器7具有相当的截止频率，其选择比工作频带中的频率略低，低通滤波器6的输入端并且高通滤波器7共同连接到恒电阻型分路滤波器2的输入端子1（1），调谐电路4包括并联谐振电路，其包括调谐电感器8（1）和可变容量二极管8 （2），并且耦合电感器3连接在高通滤波器7的电感器7（2）的中间抽头和并联谐振电路的输入端子之间，并联谐振电路的输出端子连接到高频电路。版权所有（C）2007，JPO＆INPIT

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