Voltage controlled oscillator, and pll circuit, and radio communication device each including the same
    2.
    发明专利
    Voltage controlled oscillator, and pll circuit, and radio communication device each including the same 审中-公开
    电压控制振荡器和PLL电路以及每个包括其的无线电通信装置

    公开(公告)号:JP2009278616A

    公开(公告)日:2009-11-26

    申请号:JP2009096945

    申请日:2009-04-13

    IPC分类号: H03B5/12 H03L7/099

    摘要: PROBLEM TO BE SOLVED: To provide a voltage controlled oscillator that is configured by arranging C-coupling type variable capacitance circuits and a direct-coupling type variable capacitance circuit in a mixed manner and in which the linearity and the variable range of the oscillation frequency are well-balanced.
    SOLUTION: The voltage controlled oscillator includes an inductor circuit 110, C-coupling type variable capacitance circuits 120 and 140, a direct-coupling type variable capacitance circuit 130, and a negative resistance circuit 160, which are connected in parallel, and a reference voltage generating section 180 that generates reference voltages Vref1 and Vref2. A control voltage Vt for feedback control of an oscillation frequency is applied to back gate terminals of variable capacitance elements 121, 122, 131, 132, 141 and 142 of the variable capacitance circuits 120, 130 and 140. The reference voltages Vref1 and Vref2 are applied to gate terminals of the variable capacitance elements 121, 122, 141, and 142 of the C-coupling type variable capacitance circuits 120 and 140, respectively.
    COPYRIGHT: (C)2010,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种压控振荡器,其通过以混合方式布置C耦合型可变电容电路和直接耦合型可变电容电路而构成,其中线性度和可变范围 振荡频率平衡良好。 解决方案:压控振荡器包括并联连接的电感器电路110,C耦合型可变电容电路120和140,直接耦合型可变电容电路130和负电阻电路160以及 产生参考电压Vref1和Vref2的参考电压产生部分180。 将用于反馈控制振荡频率的控制电压Vt施加到可变电容电路120,130和140的可变电容元件121,122,131,132,141和142的后栅极端子。参考电压Vref1和Vref2是 分别施加到C耦合型可变电容电路120和140的可变电容元件121,122,141和142的栅极端子。 版权所有(C)2010,JPO&INPIT

    キャリブレーション回路及びPLL回路
    3.
    发明专利
    キャリブレーション回路及びPLL回路 审中-公开
    校准电路和PLL电路

    公开(公告)号:JP2014204418A

    公开(公告)日:2014-10-27

    申请号:JP2013082068

    申请日:2013-04-10

    摘要: 【課題】注入同期型分周器のロックレンジのキャリブレーションを高速に行い、短期間に所望周波数を安定的に得る。【解決手段】キャリブレーション回路は、注入同期型分周器(ILFD)をフリーランさせ(ST11)、周波数負帰還によってフリーラン周波数を所望周波数にキャリブレーションする。サンプルホールド回路は、キャリブレーション終了後のILFD制御信号の値を記憶し(ST12)、記憶したILFD制御信号の値を注入同期型分周器に出力し続ける(ST13)。注入同期型分周器の分周範囲はフリーラン周波数の付近にあるので、キャリブレーション回路は、注入同期型分周器に、注入信号を所望周波数において分周させることができる。【選択図】図2

    摘要翻译: 要解决的问题:通过快速校准注入锁定分频器的锁定范围,在短时间内稳定地产生期望的频率。解决方案:校准电路指示注入锁定分频器(ILFD)自由运行(ST11) 并通过负频率反馈将自由运行频率校准到所需频率。 采样保持电路存储校准后的ILFD控制信号的值(ST12),并且将ILFD控制信号的存储值继续输出到注入锁定分频器(ST13)。 由于注入锁定分频器的分频范围接近自由运行频率,所以校准电路可以指示注入锁定分频器将注入信号的频率划分到期望的频率。

    Radio communication device and transmission power control method
    4.
    发明专利
    Radio communication device and transmission power control method 有权
    无线电通信设备和传输功率控制方法

    公开(公告)号:JP2014155056A

    公开(公告)日:2014-08-25

    申请号:JP2013023451

    申请日:2013-02-08

    IPC分类号: H04B1/04 H03G3/20 H03G3/30

    摘要: PROBLEM TO BE SOLVED: To obtain a constant effective radiation power level if dispersion in an antenna gain occurs in radio communication that handles a high frequency signal.SOLUTION: A variable gain amplifier amplifies a baseband signal. An orthogonal modulator performs orthogonal modulation on the amplified baseband signal to generate a high frequency signal. A power amplifier amplifies the generated high frequency signal. An antenna transmits the amplified high frequency signal. A detector detects the amplified high frequency signal. A first nonvolatile memory stores desired transmission power of the high frequency signal transmitted from the antenna. A control unit adjusts the gain of the variable gain amplifier according to the detector output and the transmission power stored in the nonvolatile memory.

    摘要翻译: 要解决的问题:如果天线增益中的色散发生在处理高频信号的无线电通信中,则获得恒定的有效辐射功率电平。解决方案:可变增益放大器放大基带信号。 正交调制器对放大的基带信号执行正交调制以产生高频信号。 功率放大器放大所产生的高频信号。 天线发射放大的高频信号。 检测器检测放大的高频信号。 第一非易失性存储器存储从天线发送的高频信号的期望发送功率。 控制单元根据检测器输出和存储在非易失性存储器中的发送功率来调节可变增益放大器的增益。

    Voltage-controlled oscillator, and pll circuit, fll circuit and wireless communication device using the same
    5.
    发明专利
    Voltage-controlled oscillator, and pll circuit, fll circuit and wireless communication device using the same 审中-公开
    电压控制振荡器和PLL电路,FLL电路和使用该电路的无线通信装置

    公开(公告)号:JP2010239527A

    公开(公告)日:2010-10-21

    申请号:JP2009087038

    申请日:2009-03-31

    IPC分类号: H03B5/04 H03B5/12

    摘要: PROBLEM TO BE SOLVED: To provide a voltage-controlled oscillator that can hold an oscillation frequency at a desired value when an oscillation frequency changes due to the temperature, without narrowing a variable range of the oscillation frequency, and a PLL circuit, an FLL circuit and a wireless communication device, which use the voltage-controlled oscillator.
    SOLUTION: A control voltage Vt is applied to a connection point Y between variable capacitors 121 and 122 included in a variable capacitance circuit 120. A control signal Fsel is applied to a switching element 132 included in a capacitance switching circuit 130. A power-supply voltage Vdd is applied by a control section 170 to a connection point X between inductors 111 and 112 included in an inductor circuit 110. A voltage value of the power-supply voltage Vdd is controlled such that the oscillation frequency of a local oscillation signal is held at a constant regardless of a temperature change.
    COPYRIGHT: (C)2011,JPO&INPIT

    摘要翻译: 要解决的问题:为了提供一种压电振荡器,当振荡频率由于温度而变化时,可以将振荡频率保持在期望值,而不会使振荡频率的可变范围变窄,以及PLL电路, FLL电路和使用压控振荡器的无线通信装置。 解决方案:控制电压Vt被施加到包括在可变电容电路120中的可变电容器121和122之间的连接点Y.控制信号Fsel被施加到包括在电容切换电路130中的开关元件132。 电源电压Vdd由控制部分170施加到电感器电路110中包括的电感器111和112之间的连接点X.电源电压Vdd的电压值被控制成使得本地振荡的振荡频率 无论温度变化如何,信号都保持恒定。 版权所有(C)2011,JPO&INPIT

    Wireless communication device
    6.
    发明专利
    Wireless communication device 有权
    无线通信设备

    公开(公告)号:JP2014176013A

    公开(公告)日:2014-09-22

    申请号:JP2013049363

    申请日:2013-03-12

    IPC分类号: H04B1/04 H03G3/20 H03G3/30

    CPC分类号: H03G3/3042 H04B2001/0416

    摘要: PROBLEM TO BE SOLVED: To provide a wireless communication device capable of obtaining a high-frequency transmission signal of desired power even when a threshold voltage of a transistor deviates from a desired value.SOLUTION: In a wireless communication device 1000, each of baseband variable gain amplifiers 507a and 507b amplifies a baseband signal. Each of mixers 504a and 504b converts the amplified baseband signal into a high-frequency transmission signal. Each of hybrid variable gain amplifiers 505a and 505b amplifies an in-phase local signal and an orthogonal local signal which are input to the mixers 504a and 504b. A level detection control section 514 controls the baseband variable gain amplifiers 507a and 507b and the hybrid variable gain amplifiers 505a and 505b, respectively, to the gain according to the power of the high-frequency transmission signal.

    摘要翻译: 要解决的问题:提供即使当晶体管的阈值电压偏离期望值时也能够获得期望功率的高频发送信号的无线通信设备。解决方案:在无线通信设备1000中,每个基带变量 增益放大器507a和507b放大基带信号。 混频器504a和504b中的每一个将放大的基带信号转换成高频发送信号。 混合可变增益放大器505a和505b中的每一个放大输入到混频器504a和504b的同相本地信号和正交本地信号。 电平检测控制部分514分别将基带可变增益放大器507a和507b以及混合可变增益放大器505a和505b分别控制为根据高频发送信号的功率的增益。

    Radio communication apparatus and start-up method of the radio communication apparatus
    7.
    发明专利
    Radio communication apparatus and start-up method of the radio communication apparatus 有权
    无线电通信设备的无线电通信设备和启动方法

    公开(公告)号:JP2014165516A

    公开(公告)日:2014-09-08

    申请号:JP2013032001

    申请日:2013-02-21

    IPC分类号: H04B1/40 H04M1/00

    CPC分类号: H04L7/04 H03B5/366 H04B1/40

    摘要: PROBLEM TO BE SOLVED: To provide a small size radio communication apparatus capable of properly starting up at power ON.SOLUTION: A radio communication apparatus includes: a BBIC that performs a baseband signal processing; an RFIC that performs a high frequency signal processing; and a crystal oscillator. The RFIC has: a storage that holds adjustment values for adjusting the frequency of a clock signal based on the oscillation frequency of the crystal oscillator and outputs an adjusted value when a reset is released from the active state; a frequency adjustment section that adjusts the frequency of the clock signal according to the adjustment value stored in the storage; and an RF signal processing section that performs a high frequency signal processing according to the clock signal. The clock signal which is output from an oscillation circuit including the crystal oscillator and the frequency adjustment section is supplied to the RF signal processing section and the BBIC. The BBIC controls the reset of the storage and the reset of the baseband signal processing made by the BBIC.

    摘要翻译: 要解决的问题:提供能够在接通电源时正确启动的小型无线通信装置。解决方案:无线电通信装置包括:执行基带信号处理的BBIC; 执行高频信号处理的RFIC; 和晶体振荡器。 RFIC具有:存储器,其保存用于基于晶体振荡器的振荡频率来调整时钟信号的频率的调整值,并且当从激活状态释放复位时输出调整值; 频率调整部,其根据存储在存储器中的调整值来调整时钟信号的频率; 以及RF信号处理部,其根据时钟信号进行高频信号处理。 从包括晶体振荡器和频率调节部分的振荡电路输出的时钟信号被提供给RF信号处理部分和BBIC。 BBIC控制存储器的复位和由BBIC进行的基带信号处理的复位。

    Pll oscillation circuit, polar transmitting circuit and communication device
    8.
    发明专利
    Pll oscillation circuit, polar transmitting circuit and communication device 审中-公开
    PLL振荡电路,极性发射电路和通信设备

    公开(公告)号:JP2010004524A

    公开(公告)日:2010-01-07

    申请号:JP2009121948

    申请日:2009-05-20

    IPC分类号: H03L7/093

    摘要: PROBLEM TO BE SOLVED: To provide a PLL oscillation circuit that can reduce the variability of modulation sensitivity of a VCO 101 and obtain a desired output amplitude quickly with high precision. SOLUTION: An amplitude detector 103 detects an output amplitude of the VCO 101. An amplitude controller 105 controls a current value of a variable current source 109 so as to have an output amplitude of the VCO 101 detected by the amplitude detector 103 to be a desired amplitude. An LPF 108 is connected between the amplitude controller 105 and the variable current source 109. A switch 107 connects or disconnects the LPF 108 between the amplitude controller 105 and the variable current source 109. The amplitude controller 105 is connected to the variable current source 109 through either the LPF 108 or the switching switch 107. COPYRIGHT: (C)2010,JPO&INPIT

    摘要翻译: 解决的问题:提供一种PLL振荡电路,其可以降低VCO 101的调制灵敏度的可变性,并以高精度快速获得期望的输出幅度。 振幅检测器103检测VCO 101的输出幅度。振幅控制器105控制可变电流源109的电流值,使振幅检测器103检测到的VCO 101的输出振幅为 是期望的振幅。 LPF108连接在振幅控制器105和可变电流源109之间。开关107连接或断开振幅控制器105和可变电流源109之间的LPF108。振幅控制器105连接到可变电流源109 通过LPF108或切换开关107.版权所有(C)2010,JPO&INPIT