Receiving circuit, and receiving apparatus and transmitting/receiving apparatus using the receiving circuit
    111.
    发明授权
    Receiving circuit, and receiving apparatus and transmitting/receiving apparatus using the receiving circuit 失效
    接收电路,以及使用接收电路的接收装置和发送/接收装置

    公开(公告)号:US07499692B2

    公开(公告)日:2009-03-03

    申请号:US10591850

    申请日:2005-03-07

    CPC classification number: H03G1/0088 H03G3/3052 H04B1/30

    Abstract: An object of the invention is to provide a receiving circuit where the quality of reception can be prevented from deteriorating when the gain changes, so that the good quality of the received signal can be preserved, as well as a receiving apparatus and a transmitting/receiving apparatus using the receiving circuit. In the configuration of the invention, a switch (113) is converted to a short state in response to a change in the gain of a variable gain amplifier (107) by means of a gain control apparatus 112, and thereby, the output terminal of a high pass filter (111) is fixed at a reference voltage and the cutoff frequency of a low pass filter (108) is increased. As a result, the period during which the DC voltage has transient response properties in the low pass filter (108) can be shortened, and this transient response prevented from passing through the high pass filter (111).

    Abstract translation: 本发明的目的是提供一种接收电路,其中当增益改变时可以防止接收质量恶化,从而可以保持接收信号的良好质量,以及接收装置和发送/接收 使用接收电路的装置。 在本发明的结构中,通过增益控制装置112响应于可变增益放大器(107)的增益的变化而将开关(113)转换为短状态,由此,输出端子 高通滤波器(111)被固定在参考电压上,并且低通滤波器(108)的截止频率增加。 结果,可以缩短在低通滤波器(108)中具有瞬态响应特性的直流电压的周期,并且防止该瞬态响应通过高通滤波器(111)。

    Transmission circuit and communication apparatus employing the same
    112.
    发明授权
    Transmission circuit and communication apparatus employing the same 有权
    发送电路及采用该电路的通信装置

    公开(公告)号:US07496333B2

    公开(公告)日:2009-02-24

    申请号:US11633510

    申请日:2006-12-05

    CPC classification number: H04L27/361 H04L27/368

    Abstract: A small-size transmission circuit is provided which outputs a transmission signal having high linearity independently of a magnitude of an output power, and operates with high efficiency. A signal generating section generates quadrature data based on input data. A computation section compares an amplitude component of the quadrature data with a predetermined amplitude threshold value, and outputs an amplitude signal, a first phase signal, and a second phase signal. A regulator outputs a voltage controlled depending on the amplitude signal. An angle modulation section and an angle modulation section angle-modulate the phase signal to output first and second angle-modulated signals. An amplitude modulation section and an amplitude modulation section amplitude-modulate the first and second angle-modulated signals using a voltage controlled depending on the amplitude signal to output the angle-modulated and amplitude-modulated signals as a first modulated signal and a second modulated signal. A combining section combines the first and second modulated signals to output a transmission signal.

    Abstract translation: 提供了一种小型传输电路,其输出独立于输出功率的大小的高线性度的传输信号,并且以高效率运行。 信号生成部根据输入数据生成正交数据。 计算部分将正交数据的幅度分量与预定幅度阈值进行比较,并输出振幅信号,第一相位信号和第二相位信号。 调节器输出根据振幅信号控制的电压。 角度调制部分和角度调制部分对相位信号进行角度调制以输出第一和第二角度调制信号。 幅度调制部分和幅度调制部分使用根据振幅信号控制的电压对第一和第二角度调制信号进行振幅调制,以输出角度调制和调幅信号作为第一调制信号和第二调制信号 。 组合部分组合第一和第二调制信号以输出传输信号。

    POLAR MODULATION APPARATUS
    113.
    发明申请
    POLAR MODULATION APPARATUS 有权
    极性调制装置

    公开(公告)号:US20090039974A1

    公开(公告)日:2009-02-12

    申请号:US12280975

    申请日:2007-02-27

    Abstract: Provided is a polar modulation apparatus capable of performing power limit with a simple configuration even when controlling a transmission power and increasing the transmission signal output power control range. A polar modulation device (1) includes an amplitude limit unit (6) for limiting an amplitude component of an amplitude signal, a D/A converter (7) for converting an inputted digital signal into an analog signal, a power control unit (8) for performing power control so that the inputted signal is an output signal based on the power control signal, a voltage control circuit (9) for supplying voltage to an amplitude modulator (11) according to the output signal from the power control unit (8), an angle modulator (10) for performing angle modulation according to a phase signal, and an amplitude modulator (11) for performing amplitude modulation on the signal subjected to angle modulation, according to the voltage supplied from the voltage control circuit (9).

    Abstract translation: 提供一种即使在控制发送功率并增加发送信号输出功率控制范围时也能够以简单的配置进行功率限制的极地调制装置。 极化调制装置(1)包括用于限制幅度信号的振幅分量的振幅限制单元(6),用于将输入的数字信号转换为模拟信号的D / A转换器(7),功率控制单元(8 ),用于执行功率控制,使得输入的信号是基于功率控制信号的输出信号;电压控制电路(9),用于根据来自功率控制单元(8)的输出信号向幅度调制器(11)提供电压 ),用于根据相位信号进行角度调制的角度调制器(10),以及用于根据从电压控制电路(9)提供的电压对经过角度调制的信号进行幅度调制的幅度调制器(11) 。

    FREQUENCY MODULATION CIRCUIT
    114.
    发明申请
    FREQUENCY MODULATION CIRCUIT 失效
    频率调制电路

    公开(公告)号:US20080211596A1

    公开(公告)日:2008-09-04

    申请号:US11969783

    申请日:2008-01-04

    CPC classification number: H03C3/38

    Abstract: Provided is a frequency modulation circuit 1 for outputting a highly precise frequency-modulated signal regardless of variation in a characteristic of a VCO 15. A correction value calculation section 17 calculates a correction value Vt2 based on a voltage value (Vtx−Vt1) resulting from subtracting a control voltage Vt1, which is generated by a control voltage generation section 11, from a control voltage Vtx at which a sensitivity of the VCO 15 is maximized. A variable amplifier 18 amplifies the correction value Vt2. An addition section 13 outputs a control voltage Vt3, which results from adding the amplified correction value Vt2 to the control voltage Vt1, to the VCO 15 via a DAC 14.

    Abstract translation: 提供了一种用于输出高精度调频信号的频率调制电路,而不管VCO15的特性如何变化。 校正值计算部17基于从减去控制电压Vt1 <1>而产生的电压值(Vtx-Vt1> 1)来计算校正值Vt2&lt; 2&lt; 由控制电压产生部分11产生的,由VCO15的灵敏度最大化的控制电压Vtx。 可变放大器18放大校正值Vt2。 加法部分13将通过将放大的校正值Vt <2> 加上控制电压Vt 1 <1>而得到的控制电压Vt 3 3输出到 VCO 15经由DAC 14。

    TRANSMISSION CIRCUIT COMPRISING MULTISTAGE AMPLIFIER, AND COMMUNICATION DEVICE
    115.
    发明申请
    TRANSMISSION CIRCUIT COMPRISING MULTISTAGE AMPLIFIER, AND COMMUNICATION DEVICE 有权
    包含多级放大器的传输电路和通信设备

    公开(公告)号:US20080175335A1

    公开(公告)日:2008-07-24

    申请号:US12017885

    申请日:2008-01-22

    Abstract: Provided is a transmission circuit which is capable of compensating for an offset voltage and a sensitivity characteristic of a PA, and operating with low distortion and high efficiency. A regulator 18 supplies, to a PA 201, a voltage which is controlled in accordance with an amplitude signal to which a first offset value has been added. A regulator 19 supplies, to a PA 202, a voltage which is controlled in accordance with an amplitude signal to which a second offset value has been added. The PA 201 amplifies, in accordance with the voltage supplied from the regulator 18, a phase-modulated signal outputted from a phase modulator 13. The PA 202 amplifies, in accordance with the voltage supplied from the regulator 19, an output signal of the PA 201. A digital block 11 controls the first and second offset values in accordance with temperature information T measured by a temperature measuring section 21.

    Abstract translation: 提供了能够补偿PA的偏移电压和灵敏度特性并且以低失真和高效率运行的传输电路。 调节器18向PA 201提供根据已经添加了第一偏移值的幅度信号来控制的电压。 调节器19向PA 202提供根据已经添加了第二偏移值的幅度信号来控制的电压。 PA 201根据从调节器18提供的电压,放大从相位调制器13输出的相位调制信号。 PA 202根据从调节器19提供的电压来放大PA201的输出信号。 数字块11根据由温度测量部分21测量的温度信息T来控制第一和第二偏移值。

    Transmission circuit and communication apparatus comprising the same
    116.
    发明申请
    Transmission circuit and communication apparatus comprising the same 有权
    发送电路及其通信装置

    公开(公告)号:US20070165744A1

    公开(公告)日:2007-07-19

    申请号:US11653284

    申请日:2007-01-16

    Applicant: Kaoru Ishida

    Inventor: Kaoru Ishida

    CPC classification number: H04W52/52 H03G3/3042 H03G3/3047

    Abstract: A transmission circuit is provided which can quickly and accurately control an output power of a transmission signal even when the transmission signal is output at a high modulation rate and in a wide dynamic range. A switching control section controls a modulation method changing section to change a modulation method of a modulated signal generating section to a modulation method having a narrow dynamic range before controlling a switching section to switch amplification sections. An output adjustment control section controls output adjusting sections so that a difference in level between a transmission signal which is smoothed by a smoothing circuit and is before the amplification sections are switched, and a transmission signal which is after the amplification sections are switched, is caused to be smaller than a predetermined difference threshold value, when the modulated signal generating section operates in the modulation method having the narrow dynamic range.

    Abstract translation: 即使传输信号以高调制率和宽的动态范围输出,也能够快速准确地控制发送信号的输出功率的发送电路。 切换控制部分控制调制方法改变部分,以在控制切换部分以切换放大部分之前将调制信号产生部分的调制方法改变为具有窄动态范围的调制方法。 输出调整控制部分控制输出调节部分,使得平滑电路平滑并且在放大部分之前被切换的发送信号之间的电平差和放大部分之后的发送信号被切换 当调制信号生成部分以具有窄动态范围的调制方法操作时,小于预定差值阈值。

    FM modulator
    117.
    发明申请
    FM modulator 失效
    FM调制器

    公开(公告)号:US20070093217A1

    公开(公告)日:2007-04-26

    申请号:US11583176

    申请日:2006-10-19

    Abstract: Provided is an FM modulator capable of measuring an f-V characteristic of a voltage controlled oscillator in a reduced time period. Therefore, a characteristic measurement time control section 110 notifies a correction section 108 of a time at which a measurement of the f-V characteristic of a voltage controlled oscillator 103 is to be started and a time at which the measurement of the f-V characteristic of the voltage controlled oscillator 103 is to be ended while a carrier wave frequency is being changed to a predetermined frequency. Thus, the correction section 108 is capable of measuring the f-V characteristic of the voltage controlled oscillator 103 in a reduced time period.

    Abstract translation: 提供了一种能够在缩短的时间周期内测量压控振荡器的f-V特性的FM调制器。 因此,特性测量时间控制部分110向校正部分108通知压控振荡器103的fV特性的测量开始的时间和控制的电压的fV特性的测量的时间 当载波频率变为预定频率时,振荡器103将结束。 因此,校正部分108能够在缩短的时间周期内测量压控振荡器103的f-V特性。

    Wireless transmission apparatus, polar modulation transmission apparatus, and wireless communication apparatus
    118.
    发明申请
    Wireless transmission apparatus, polar modulation transmission apparatus, and wireless communication apparatus 审中-公开
    无线发送装置,极地调制发送装置和无线通信装置

    公开(公告)号:US20060293005A1

    公开(公告)日:2006-12-28

    申请号:US11410292

    申请日:2006-04-25

    CPC classification number: H04B1/406 H04B1/0483

    Abstract: A wireless transmission apparatus of multi-mode operation with superior power efficiency is provided. Switches (115 and 117) are switched over in such a manner that a modulation signal outputted from a wireless GSM/EDGE (UB) signal formation circuit (101-3) of a high-frequency signal processing circuit (101) is outputted to a high-frequency power amplifier (104) at the time of output of a GSM modulation signal, and is outputted to a high-frequency amplifier (105) at the time of output of an EDGE modulation signal. As a result, the EDGE modulation signal is power amplified using a high-frequency power amplifier (105) for an UMTS modulation signal use that is compatible with regards to the EDGE modulation signal and the maximum output power and presence or absence of envelope fluctuation. It is therefore possible to amplify the EDGE modulation scheme wireless signal with high efficiency.

    Abstract translation: 提供了具有优异功率效率的多模式操作的无线传输装置。 开关(115和117)被切换,使得从高频信号处理电路(101)的无线GSM / EDGE(UB)信号形成电路(101-3)输出的调制信号被输出到 高频功率放大器(104),并且在EDGE调制信号的输出时被输出到高频放大器(105)。 结果,使用与EDGE调制信号和最大输出功率以及存在或不存在包络波动兼容的UMTS调制信号使用的高频功率放大器(105)对EDGE调制信号进行功率放大。 因此,可以高效率地放大EDGE调制方式的无线信号。

    Semiconductor device
    119.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US07053461B2

    公开(公告)日:2006-05-30

    申请号:US10928503

    申请日:2004-08-27

    Abstract: A semiconductor device includes: a semiconductor substrate in which a semiconductor element is formed; a multilayer structured wiring layer that is provided on the semiconductor substrate, the wiring layer forming a structure connected with the semiconductor element; a spiral inductor that is formed in at least one layer of the wiring layer; and a connection terminal formed in an uppermost layer of the wiring layer for establishing connection from the wiring layer to an outside such as a printed board. A shielding wiring pattern is disposed between the spiral inductor and the connection terminal, the shielding wiring pattern functioning as an electromagnetic shield for the uppermost layer of the wiring layer. The shielding wiring pattern absorbs a change in electrical field caused by a potential change in the connection terminal, providing a shielding structure which suppresses the superposing of noise and an unnecessary signal onto the spiral inductor from the connection terminal.

    Abstract translation: 半导体器件包括:形成半导体元件的半导体衬底; 设置在所述半导体基板上的多层结构化布线层,所述布线层形成与所述半导体元件连接的结构; 形成在所述布线层的至少一层中的螺旋电感器; 以及形成在布线层的最上层的连接端子,用于建立从布线层到诸如印刷板的外部的连接。 屏蔽布线图案设置在螺旋电感器和连接端子之间,屏蔽布线图形用作布线层最上层的电磁屏蔽。 屏蔽布线图案吸收由连接端子的电位变化引起的电场变化,提供屏蔽结构,其抑制了从连接端子向螺旋电感器叠加噪声和不必要的信号。

    Predistortion circuit, low-distortion power amplifier, and control methods therefor
    120.
    发明授权
    Predistortion circuit, low-distortion power amplifier, and control methods therefor 有权
    预失真电路,低失真功率放大器及其控制方法

    公开(公告)号:US06960958B2

    公开(公告)日:2005-11-01

    申请号:US10750910

    申请日:2004-01-05

    Abstract: An amplitude frequency characteristic adjustment circuit 106 is provided downstream of and connected to a distortion generation circuit 105. An amplitude difference between low-frequency-side and high-frequency-side distortion voltages is adjusted by the amplitude frequency characteristic adjustment circuit 106, and then their amplitudes and phases are adjusted by a vector adjustment circuit 107. This configuration makes it possible to suppress simultaneously both of low-frequency-side and high-frequency-side distortion voltages of a distortion generated by a wide-band class-AB power amplifier even if they are different in amplitude and phase.

    Abstract translation: 幅度频率特性调整电路106设置在失真产生电路105的下游并连接到失真产生电路105。 通过幅度频率特性调整电路106调整低频侧和高频侧失真电压之间的幅度差,然后通过矢量调整电路107调整其幅度和相位。 通过这种结构,即使幅度和相位不同,也能同时抑制由宽带AB类功率放大器产生的失真的低频侧和高频侧的失真电压。

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