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    • 21. 发明专利
    • Receiver input circuit
    • 接收机输入电路
    • JP2007104425A
    • 2007-04-19
    • JP2005292764
    • 2005-10-05
    • 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
    • KAWAI KAZUO
    • H04B1/18H03H7/38H03J3/20H03K19/0175
    • H04B1/18
    • PROBLEM TO BE SOLVED: To provide a receiver input circuit which does not need a matching adjustment with antenna impedance when a tuning frequency of a parallel tuner circuit changes, and is excellent in frequency selection degree and improved in noise index. SOLUTION: The receiver input circuit is composed of an R-∞ type low-pass filter 2, a small capacity coupling capacitor element 3 and a parallel tuner circuit 4. The low-pass filter 2 includes a series connection inductor element 8, a first capacitor element 9 and a branch connection second capacitor element 10. The first and second capacitor elements 8, 9 are obtained by bisecting an ordinary branch connection capacitor element. A total capacitance value thereof is selected to be equal with that of the ordinary branch connection capacitor element, the parallel tuner circuit 4 uses a first variable capacitance capacitor element 12 for tuning, and a second variable capacitance capacitor element is used for the coupling capacitor element 3. When changing a tuning frequency of the parallel tuner circuit 4 by adjusting capacitance of the first variable capacitance capacitor element 12, a capacitance value of the coupling capacitor element 3 is changed in association with the adjustment of the capacitance. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供当并行调谐器电路的调谐频率改变时不需要与天线阻抗进行匹配调整的接收机输入电路,并且频率选择程度优异并且噪声指数得到改善。

      解决方案:接收器输入电路由R-∞型低通滤波器2,小容量耦合电容器元件3和并行调谐器电路4组成。低通滤波器2包括串联连接电感器元件8 第一电容器元件9和分支连接第二电容器元件10.第一和第二电容器元件8,9通过将普通分支连接电容器元件平分而获得。 选择其总电容值与普通分支连接电容器元件相同,并联调谐电路4使用第一可变电容电容元件12进行调谐,第二可变电容电容元件用于耦合电容元件 当通过调整第一可变电容电容器元件12的电容来改变并行调谐器电路4的调谐频率时,耦合电容器元件3的电容值与电容的调节相关联地改变。 版权所有(C)2007,JPO&INPIT

    • 22. 发明专利
    • Variable resistance circuit
    • 可变电阻电路
    • JP2007013645A
    • 2007-01-18
    • JP2005192386
    • 2005-06-30
    • 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
    • KAWAI KAZUO
    • H03H11/24
    • H03G1/0058
    • PROBLEM TO BE SOLVED: To provide a variable resistance circuit that easily adjusts a high frequency resistance Rf by connecting a control voltage compensation circuit to a PIN diode circuit 1 and by making a relation of the change of the high frequency resistance Rf to the change of control voltages Vc almost linear.
      SOLUTION: The variable resistance circuit is provided with: the PIN diode circuit 1 for adjusting the high frequency resistance Rf of PIN diodes 8 and 9 by control voltages Vc; a first means for performing level shift to one of the control voltages Vc by a level shift circuit 2 and using a Zener diode characteristic to give a nonlinear characteristic by a Zener diode circuit 3; a second means for giving voltage offset to the other control voltage Vc by a weighting circuit 4; and an adder circuit 5 for adding respective output voltages of the first means and the second means. When adding an output of the adder circuit 5 to the PIN diode circuit 1, a shift voltage of the level shift circuit 2, the Zener characteristic of the Zener diode circuit 3, and the voltage offset of the weighting circuit 4 are selectively adjusted, and the value of the high frequency resistance Rf of the PIN diode circuit 1 is set so as to change almost linearly with respect to a change in the control voltages Vc.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种可变电阻电路,其通过将控制电压补偿电路连接到PIN二极管电路1并且通过使高频电阻Rf的变化与高频电阻Rf的关系容易地调节高频电阻Rf 控制电压Vc的变化几乎是线性的。

      解决方案:可变电阻电路设有:PIN二极管电路1,用于通过控制电压Vc调节PIN二极管8和9的高频电阻Rf; 用于通过电平移位电路2进行电平移位到一个控制电压Vc并使用齐纳二极管特性由齐纳二极管电路3给出非线性特性的第一装置; 用于通过加权电路4向另一个控制电压Vc施加电压偏移的第二装置; 以及用于相加第一装置和第二装置的各个输出电压的加法器电路5。 当将加法器电路5的输出添加到PIN二极管电路1时,选择性地调整电平移位电路2的移位电压,齐纳二极管电路3的齐纳二极管特性和加权电路4的电压偏移, PIN二极管电路1的高频电阻Rf的值被设定为相对于控制电压Vc的变化几乎线性地变化。 版权所有(C)2007,JPO&INPIT

    • 23. 发明专利
    • Data transfer system
    • 数据传输系统
    • JP2006180042A
    • 2006-07-06
    • JP2004369258
    • 2004-12-21
    • 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
    • YOKOYAMA NOBUAKI
    • H04B1/26H04B7/26H04W4/00H04W16/26
    • H04B1/403H04B1/525
    • PROBLEM TO BE SOLVED: To provide a data transfer system wherein a master receiver directly and wirelessly transfers data to a slave receiver without using an exclusive wireless transmission apparatus so as to simply and inexpensively carry out data transfer. SOLUTION: In a data transfer system, the master receiver and the slave receiver of the same configuration each including a built-in memory 12 1 for storing data carry out data transfer with each other, in the case of the data transfer, one or more of the slave receivers to which data are transferred are arranged in the vicinity of the master receiver, the master receiver uses data read from the built-in memory 12 1 , applies FSK modulation to a local oscillation signal of a first local oscillator 3 and a reference frequency signal of a reference signal generator 6 to emit a first local oscillation signal produced from the first local oscillator 3 into air as a leaked radio wave, one or more of the slave receivers receive the leaked radio wave, and write the data acquired from the received signal to the built-in memory 12 1 so as to perform data transfer between the master receiver and the slave receivers. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种数据传输系统,其中主接收机直接且无线地将数据传送到从接收机,而不使用专用无线传输设备,从而简单且廉价地执行数据传输。 解决方案:在数据传输系统中,具有相同配置的主接收机和从接收机各自包括用于存储数据的内置存储器12 1 ,彼此进行数据传输, 在数据传送的情况下,将数据传送到的一个或多个从属接收机布置在主接收机附近,主接收机使用从内置存储器12读取的数据 将FSK调制应用于第一本地振荡器3的本地振荡信号和参考信号发生器6的参考频率信号,以将从第一本地振荡器3产生的第一本地振荡信号作为泄漏的无线电波发射到空中,一个或 更多的从接收机接收泄漏的无线电波,并将从接收信号获取的数据写入内置存储器12 ,以便在主接收机和从接收机之间执行数据传送。 版权所有(C)2006,JPO&NCIPI
    • 24. 发明专利
    • Scanning receiver
    • 扫描接收机
    • JP2006086613A
    • 2006-03-30
    • JP2004267113
    • 2004-09-14
    • 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
    • WAKUI KIYOSHIYOKOYAMA NOBUAKIKAWAI KAZUO
    • H03J7/18H04B1/26
    • H04B1/28
    • PROBLEM TO BE SOLVED: To provide a scanning receiver capable of acquiring a target radio wave in a very short time by using a simple configuration means. SOLUTION: The scanning receiver sets a plurality of wide frequency division bands resulting from dividing a whole frequency range into a plurality of frequency intervals, uses an output of an intermediate frequency amplifier circuit sequentially for each setting wide frequency division band to search the electric field strength of a received radio wave, sweeps out a received frequency from one end of the wide frequency division bands toward the other end when the received radio wave with the electric field strength of a specified level or over is obtained at its searching, shifts to a reception operation of the target radio wave when the target radio wave can be acquired at the sweep-out, and acquires the target radio wave by applying searching to the electric field strength of the received radio wave sequentially as to unsearched wide frequency division bands and applying sweeping-out to the succeeding reception frequencies. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够通过简单的配置手段在非常短的时间内获取目标无线电波的扫描接收机。 解决方案:扫描接收机设置由将整个频率范围分成多个频率间隔而产生的多个宽频带,对于每个设定宽频分频带,顺序地使用中频放大器电路的输出来搜索 当接收的无线电波的电场强度在其搜索中获得具有指定电平或以上的电场强度的接收电波时,从宽频带的一端向另一端扫出接收频率 可以在清除目标电波时获取目标无线电波的接收操作,并且通过对接收到的无线电波的电场强度进行依次搜索,获取目标无线电波,关于未干扰的宽频带 并将扫描应用于随后的接收频率。 版权所有(C)2006,JPO&NCIPI
    • 25. 发明专利
    • Tuning circuit
    • 调谐电路
    • JP2005159515A
    • 2005-06-16
    • JP2003392007
    • 2003-11-21
    • 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
    • KAWAI KAZUO
    • H03J3/20
    • PROBLEM TO BE SOLVED: To provide a tuning circuit using a varactor diode wherein a voltage/capacitance change (tuning frequency) characteristic of the varactor diode is almost linearized by using a correction purpose variable capacitance circuit.
      SOLUTION: The tuning varactor diode C
      5 connected to a tuning inductor L is connected to the correction purpose variable capacitance circuit 8 via a negative impedance converter NIC. The circuit 8 is provided with principally a correction varactor diode C
      2 and a semi-fixed capacitor C
      1 , the combined capacitance is subtracted from the capacitance of the tuning varactor diode C
      5 by the negative impedance converter NIC to make the characteristic of the tuning varactor diode C
      5 almost linear.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供使用变容二极管的调谐电路,其中变容二极管的电压/电容变化(调谐频率)特性通过使用校正目的可变电容电路几乎线性化。 &lt; P&gt;解决方案:连接到调谐电感器L的调谐变容二极管C 5 SB经由负阻抗变换器NIC连接到校正用可变电容电路8。 电路8主要设置有校正变容二极管C 2 SB 2和半固定电容器C 1,将组合电容从调谐变容二极管C的电容中减去 5 ,使调谐变容二极管C <5>的特性几乎为线性。 版权所有(C)2005,JPO&NCIPI
    • 27. 发明专利
    • Floating active capacitor
    • 浮动有源电容器
    • JP2008098907A
    • 2008-04-24
    • JP2006277650
    • 2006-10-11
    • 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
    • KAWAI KAZUO
    • H03H11/48
    • PROBLEM TO BE SOLVED: To provide a floating active capacitor in which the number of operational amplifiers are reduced as compared with the known one, whose circuit constitution is simplified, and whose internal circuit constitution is made simpler. SOLUTION: The floating active capacitor includes: a primary passive all-pass phase delay 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-delayed signal of the passive all-pass phase delay circuit 3; a phase inverting circuit 5 which inverts and amplifies the output phase-delayed 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 resistance 3(3) and a capacitor 3(4) connected in series between the first and second input terminals 1 and 2, where the phase delayed signal is obtained from the connection point between the resistance 3(3) and capacitor 3(4). COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种浮动有源电容器,其中与已知的运算放大器的数量相比较,其电路结构简化,并且其内部电路结构变得更简单。 浮动有源电容器包括: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延迟电路3; 电压跟随器,其执行无源全相位延迟电路3的输出相位延迟信号的单位增益放大; 反相和放大电压跟随器4的输出相位延迟信号的相位反转电路5; 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之间串联连接的电阻3(3)和电容器3(4),其中相位延迟 信号从电阻3(3)和电容器3(4)之间的连接点获得。 版权所有(C)2008,JPO&INPIT
    • 28. 发明专利
    • Floating active inductor
    • 浮动有源电感器
    • JP2008078991A
    • 2008-04-03
    • JP2006255735
    • 2006-09-21
    • 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
    • KAWAI KAZUO
    • H03H11/48
    • PROBLEM TO BE SOLVED: To provide a floating active inductor that has a smaller number of operational amplifiers to be used as compared with a known floating active inductor and has a simplified circuit configuration.
      SOLUTION: The floating active inductor has: two high resistors 3, 4 connected in series between first and second input terminals 1, 2; a primary active full-range pass type 90° leading circuit 5 connected to the first input terminal; a phase inverting circuit 6 cascaded to the 90° leading circuit; a virtual grounding path 9 for setting the operation reference potential of the 90° leading circuit 5 and the phase inverting circuit 6; a first resistor 7 connected between the output of the leading circuit 5 and the first input terminal 1; a second resistor 8 connected between the output of the phase inverting circuit 8 and the second input terminal 2; and a voltage buffer 10 for connecting the connection point of the two high resistors and the virtual grounding path 9. When a signal voltage is supplied between the first and second input terminals 1, 2, a 90° phase lag signal current flows into the first input terminal 1, the 90° phase lag signal current flows out of the second input terminal 2, and the floating active inductor is formed between the first and second input terminals 1, 2.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供与已知的浮动有源电感器相比具有较少数量的运算放大器的浮动有源电感器并具有简化的电路配置。 解决方案:浮动有源电感器具有:在第一和第二输入端子1,2之间串联连接的两个高电阻器3,4; 连接到第一输入端的主要有源全程通过型90°引线电路5; 与90°引导电路级联的相位反相电路6; 用于设置90°引导电路5和相位反转电路6的操作基准电位的虚拟接地路径9; 连接在引导电路5的输出端和第一输入端子1之间的第一电阻器7; 连接在相位反相电路8的输出端和第二输入端子2之间的第二电阻器8; 以及用于连接两个高电阻器和虚拟接地路径9的连接点的电压缓冲器10.当在第一和第二输入端子1,2之间提供信号电压时,90°相位滞后信号电流流入第一 输入端子1,90°相位延迟信号电流从第二输入端子2流出,浮动有源电感器形成在第一和第二输入端子1,2之间。(C)2008,JPO&INPIT
    • 29. 发明专利
    • Active inductor
    • 主动电感器
    • JP2007300538A
    • 2007-11-15
    • JP2006128350
    • 2006-05-02
    • 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
    • KAWAI KAZUO
    • H03H11/48
    • H03H11/48
    • PROBLEM TO BE SOLVED: To provide an active inductor 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 inductor comprises an input terminal 1(1), a primary all-pass type 90-degrees phase-delayed stage 3 constituted of the discrete elements, and a phase inversion amplifying stage 4 and including a constitution in which a signal supplied to the input terminal 1(1) is inputted to the primary all-pass type 90-degrees phase-delayed stage 3, a 90-degrees phase-delayed signal obtained at its output is inputted to the phase inversion amplifying stage 4 subsequent to the primary all-pass type 90-degrees phase-delayed 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-delayed stage 3 and an output end 4o of the phase inversion amplifying stage 4 is brought to 1, whereby the active inductor is configured so as to exhibit an equivalent inductor when the inside of the active inductor is seen from the input terminal 1(1).
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种有源电感器,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。 解决方案:有源电感器包括输入端子1(1),由离散元件构成的初级全通型90度相位延迟级3和相位反转放大级4,并且包括其中 提供给输入端1(1)的信号被输入到全通全相90度相位延迟级3,在其输出端获得的90度相位延迟信号被输入到相位反转放大级4 在初级全通型90度相位延迟级3之后,并且相位反相放大,并且从相位反相放大级4产生的输出被反馈耦合到输入端1(1)。 调整相位反转放大级4的负载电阻器4(2)的电阻值,使得初级全通型90度相位延迟级3的输入端3i和 使相位反转放大级4的输出端4o为1,由此,当从输入端子1(1)看到有源电感器的内部时,有源电感器被配置为呈现等效电感器。 版权所有(C)2008,JPO&INPIT
    • 30. 发明专利
    • Nonlinear circuit
    • 非线性电路
    • JP2007067541A
    • 2007-03-15
    • JP2005247957
    • 2005-08-29
    • 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
    • KAWAI KAZUO
    • H03H11/48H03H11/04H03H11/46
    • H03J3/02
    • PROBLEM TO BE SOLVED: To provide a nonlinear circuit for supplying a nonlinear element 23 exhibiting nonlinear characteristics with a control voltage having complementary nonlinear characteristics so that the nonlinear characteristics exhibit substantially linear characteristics.
      SOLUTION: The nonlinear circuit comprises a nonlinear basic circuit 2 including an operational amplifier 7, its negative feedback circuits 8 and 9, its positive feedback circuit 10, an input resistor 12 and a second input resistor 13 and converting an input control voltage into a nonlinear basic control voltage, a weighting circuit 3 including voltage division resistors 14 and 15 and dividing the input control voltage, an offset voltage adding circuit 4 including an offset voltage source 16 and generating an offset voltage, and an adder circuit 5 including a second operational amplifier 17, its negative feedback circuits 18, 19 and third, fourth and fifth input resistors 20, 21, 22 and outputting the sum of the nonlinear basic control voltage, the voltage division control voltage and the offset voltage wherein a controlled load circuit 6 including the nonlinear element 23 is connected to the output of the second operational amplifier 17.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种非线性电路,用于提供具有非线性特性的非线性元件23和具有互补非线性特性的控制电压,使得非线性特性呈现出基本上的线性特性。 解决方案:非线性电路包括非线性基本电路2,其包括运算放大器7,其负反馈电路8和9,其正反馈电路10,输入电阻12和第二输入电阻13,并将输入控制电压 成为非线性基本控制电压,包括分压电阻器14和15并且分压输入控制电压的加权电路3,包括偏移电压源16并产生偏移电压的偏移电压相加电路4以及包括 第二运算放大器17,其负反馈电路18,19和第三,第四和第五输入电阻器20,21,22,并输出非线性基本控制电压,分压控制电压和偏移电压之和,其中受控负载电路 包括非线性元件23的第二运算放大器17连接到第二运算放大器17的输出。版权所有:(C)2007,JPO&INPIT