Transmission circuit and communication device
    1.
    发明授权
    Transmission circuit and communication device 有权
    传输电路和通信设备

    公开(公告)号:US08055215B2

    公开(公告)日:2011-11-08

    申请号:US12100856

    申请日:2008-04-10

    IPC分类号: H04B1/04

    CPC分类号: H04B1/0483

    摘要: Provided is a transmission circuit capable of operating with high linearity and with low noise. An AM variable fc filter uses an AM cutoff frequency to remove a high frequency component from an amplitude signal. An amplifier supplies a power amplifier with a voltage which is a result of amplifying the amplitude signal outputted from the AM variable fc filter. A PM variable fc filter uses a PM cutoff frequency to remove a high frequency component from a phase signal. A phase modulator phase-modulates the phase signal outputted from the PM variable fc filter to output a high-frequency phase-modulated signal. The power amplifier amplifies the high-frequency phase-modulated signal by using the voltage supplied from the amplifier, and outputs a resultant signal as a transmission signal. The AM variable fc filter and the PM variable fc filter respectively control the AM cutoff frequency and the PM cutoff frequency such that the AM cutoff frequency and the PM cutoff frequency each have an opposite characteristic to that of an output power of the transmission signal.

    摘要翻译: 提供了能够以高线性度和低噪声运行的传输电路。 AM变量fc滤波器使用AM截止频率从幅度信号中去除高频分量。 放大器为功率放大器提供电压,该电压是从AM变量fc滤波器输出的幅度信号的放大结果。 PM变量fc滤波器使用PM截止频率从相位信号中去除高频分量。 相位调制器对从PM变量fc滤波器输出的相位信号进行相位调制,以输出高频相位调制信号。 功率放大器通过使用从放大器提供的电压放大高频相位调制信号,并输出合成信号作为发送信号。 AM变量fc滤波器和PM变量fc滤波器分别控制AM截止频率和PM截止频率,使得AM截止频率和PM截止频率各自具有与发送信号的输出功率相反的特性。

    Transmitter and communication apparatus
    2.
    发明授权
    Transmitter and communication apparatus 有权
    发射机和通信设备

    公开(公告)号:US07840193B2

    公开(公告)日:2010-11-23

    申请号:US11907380

    申请日:2007-10-11

    IPC分类号: H04B1/02

    CPC分类号: H03C1/62

    摘要: A modulator 23 corrects an amplitude signal Rd by adding thereto an offset value α and generates, based on the corrected amplitude signal Rd, an amplitude signal Ra for amplitude-modulating a radio-frequency signal. The modulator 23 includes: an offset voltage measurement section 109 operable to measure an offset voltage V2cal of the amplitude signal Ra; a correction value calculation section 110 operable to obtain a difference value ΔV2cal between the offset voltage V2cal measured by the offset voltage measurement section 109 and an initial value of the offset voltage V2cal and operable to calculate, based on the difference value ΔV2cal, a correction value VODAC for correcting the offset voltage V2cal; and an addition section 106 operable to add the correction value VODAC calculated by the correction value calculation section 110 to a signal processed until the amplitude signal Ra is generated from the amplitude signal Rd.

    摘要翻译: 调制器23通过加上偏移值α来校正幅度信号Rd,并且基于校正的振幅信号Rd生成用于幅度调制射频信号的振幅信号R. 调制器23包括:偏移电压测量部109,用于测量振幅信号Ra的偏移电压V2cal; 校正值计算部分110,用于获得由偏移电压测量部分109测量的偏移电压V2cal与偏移电压V2cal的初始值之间的差值Dgr; V2cal,并且可操作以基于差值Dgr; V2cal ,用于校正偏移电压V2cal的校正值VODAC; 以及附加部分106,其可操作以将由校正值计算部分110计算出的校正值VODAC与从振幅信号Rd产生振幅信号Ra之前的处理信号相加。

    Transmitter and communication apparatus
    3.
    发明申请
    Transmitter and communication apparatus 有权
    发射机和通信设备

    公开(公告)号:US20090098839A1

    公开(公告)日:2009-04-16

    申请号:US11907380

    申请日:2007-10-11

    IPC分类号: H03C1/62

    CPC分类号: H03C1/62

    摘要: A modulator 23 corrects an amplitude signal Rd by adding thereto an offset value α and generates, based on the corrected amplitude signal Rd, an amplitude signal Ra for amplitude-modulating a radio-frequency signal. The modulator 23 includes: an offset voltage measurement section 109 operable to measure an offset voltage V2cal of the amplitude signal Ra; a correction value calculation section 110 operable to obtain a difference value ΔV2cal between the offset voltage V2cal measured by the offset voltage measurement section 109 and an initial value of the offset voltage V2cal and operable to calculate, based on the difference value ΔV2cal, a correction value VODAC for correcting the offset voltage V2cal; and an addition section 106 operable to add the correction value VODAC calculated by the correction value calculation section 110 to a signal processed until the amplitude signal Ra is generated from the amplitude signal Rd.

    摘要翻译: 调制器23通过将偏移值α加上来校正振幅信号Rd,并且基于校正的振幅信号Rd生成用于对射频信号进行幅度调制的振幅信号R. 调制器23包括:偏移电压测量部109,用于测量振幅信号Ra的偏移电压V2cal; 校正值计算部分110,用于获得由偏移电压测量部分109测量的偏移电压V2cal与偏移电压V2cal的初始值之间的差值DeltaV2cal,并且可操作以基于差值ΔV2cal计算校正值 VODAC用于校正偏移电压V2cal; 以及附加部分106,其可操作以将由校正值计算部分110计算出的校正值VODAC与从振幅信号Rd产生振幅信号Ra之前的处理信号相加。

    Wireless transmission apparatus, polar modulation transmission apparatus, and wireless communication apparatus
    4.
    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

    IPC分类号: H04B1/04 H04B1/02

    CPC分类号: H04B1/406 H04B1/0483

    摘要: 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.

    摘要翻译: 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。

    Drive unit, movable module, and autofocus control method
    5.
    发明授权
    Drive unit, movable module, and autofocus control method 失效
    驱动单元,可动模块和自动对焦控制方式

    公开(公告)号:US08576291B2

    公开(公告)日:2013-11-05

    申请号:US13454655

    申请日:2012-04-24

    IPC分类号: H04N5/228 H04N5/232

    CPC分类号: G03B3/10 F03G7/065

    摘要: To provide a drive unit and a drive module which include a shape memory alloy as a drive source to move a driven member and are capable of the high-precision movement of the driven member to a reference position. A drive unit and a drive module can be provided by controlling, in the drive unit and the drive module which include the shape memory alloy as the drive source to move the driven member, the shape memory alloy so that the resistance of the shape memory alloy is equal to the resistance when the driven member is located at the reference position.

    摘要翻译: 提供一种驱动单元和驱动模块,其包括形状记忆合金作为驱动源以移动从动构件并且能够将从动构件的高精度移动到参考位置。 可以通过在包括形状记忆合金作为驱动源的驱动单元和驱动模块中控制驱动单元和驱动模块来移动被动构件,形状记忆合金,使得形状记忆合金的电阻 等于从动构件位于参考位置时的阻力。

    Polar modulation apparatus and communication device
    6.
    发明授权
    Polar modulation apparatus and communication device 有权
    极性调制装置和通信装置

    公开(公告)号:US08466755B2

    公开(公告)日:2013-06-18

    申请号:US13142489

    申请日:2009-11-20

    申请人: Yoshihiro Hara

    发明人: Yoshihiro Hara

    IPC分类号: H03C3/38

    CPC分类号: H03F1/0222 H03F3/24

    摘要: Provided is a Polar modulation apparatus which compensates for output characteristics of a power amplifier. A data generator generates an amplitude component signal and a phase component signal. A phase modulator generates a phase modulated signal obtained by phase modulating the phase component signal. An adder adds an amplitude offset voltage to the amplitude component signal. A power amplifier which includes a first hetero-junction bipolar transistor, amplifies the phase modulated signal by using the amplitude component signal. A monitor unit monitors the power amplifier and outputs a monitor voltage. The control unit calculates the amplitude offset voltage according to the monitor voltage and outputs the calculated amplitude offset voltage to the adder. The monitor unit includes a second hetero-junction bipolar transistor and outputs a collector emitter voltage of the second hetero-junction bipolar transistor as the monitor voltage.

    摘要翻译: 提供了一种用于补偿功率放大器的输出特性的极性调制装置。 数据发生器产生幅度分量信号和相位分量信号。 相位调制器产生通过相位调制相位分量信号获得的相位调制信号。 加法器将振幅偏移电压加到幅度分量信号上。 包括第一异质结双极晶体管的功率放大器通过使用振幅分量信号来放大相位调制信号。 监视器单元监视功率放大器并输出监视器电压。 控制单元根据监视电压来计算幅度偏移电压,并将计算的振幅偏移电压输出到加法器。 监视器单元包括第二异质结双极晶体管,并输出第二异质结双极晶体管的集电极发射极电压作为监视电压。

    Drive device
    7.
    发明授权
    Drive device 失效
    驱动装置

    公开(公告)号:US08351141B2

    公开(公告)日:2013-01-08

    申请号:US12863928

    申请日:2009-01-22

    IPC分类号: G02B7/02 G02B15/14

    CPC分类号: F03G7/065 G02B7/028 G02B7/08

    摘要: A drive device includes a setting unit 12 for setting a control value using a control value-displacement characteristic at a predetermined reference temperature showing a relationship between a control value used to position a movable unit 5 and a displacement of the movable unit 5; a drive unit 20 for supplying drive power corresponding to the control value set by the setting unit 12 to a shape-memory alloy 1 and causing the shape-memory alloy 1 to expand or contract, thereby positioning the movable unit 5; and a correction unit 13 for correcting the control value so as to correct a position shift of the movable unit 5 from a target position resulting from a difference between a control value-displacement characteristic at an ambient temperature and a control value-displacement characteristic at the reference temperature based on the ambient temperature detected by a temperature detection unit 11.

    摘要翻译: 驱动装置包括设置单元12,用于使用表示用于定位可移动单元5的控制值与可移动单元5的位移之间的关系的预定参考温度下的控制值 - 位移特性来设定控制值; 驱动单元20,用于将对应于由设置单元12设置的控制值的驱动力提供给形状记忆合金1,并使形状记忆合金1膨胀或收缩,从而定位可移动单元5; 以及校正单元13,用于校正控制值,以便根据环境温度下的控制值 - 位移特性与控制值 - 位移特性之间的差异来校正可移动单元5从目标位置的位置偏移 基于由温度检测单元11检测到的环境温度的基准温度。

    Transmission device and wireless communication apparatus
    8.
    发明授权
    Transmission device and wireless communication apparatus 有权
    传输设备和无线通信设备

    公开(公告)号:US07664202B2

    公开(公告)日:2010-02-16

    申请号:US11547354

    申请日:2006-02-02

    IPC分类号: H04L25/49

    摘要: In a first mode in which the power level of a transmission output signal (S6) is to be high, an output from the multiplier (2) is input to an amplitude modulation signal amplifier (4), and a radio frequency power amplifier (5) performs amplitude modulation on a radio frequency phase modulated signal (S4) using a nonlinear area with a supply voltage from the amplitude modulation signal amplifier (4). In a second mode in which the power level of a transmission output signal (S6) is to be low, the output from the multiplier (2) is input to a variable gain amplifier (7), and the variable gain amplifier (7) performs amplitude modulation on the radio frequency phase modulated signal (S4). The amplitude modulated signal is output without passing through the radio frequency power amplifier (5).

    摘要翻译: 在发送输出信号(S6)的功率电平为高的第一模式中,来自乘法器(2)的输出被输入到幅度调制信号放大器(4),射频功率放大器(5) )使用具有来自幅度调制信号放大器(4)的电源电压的非线性区域对射频相位调制信号(S4)进行幅度调制。 在发送输出信号(S6)的功率电平为低的第二模式中,来自乘法器(2)的输出被输入到可变增益放大器(7),并且可变增益放大器(7)执行 对射频相位调制信号进行幅度调制(S4)。 输出幅度调制信号而不通过射频功率放大器(5)。

    IMAGE SENSOR DEVICE
    10.
    发明申请
    IMAGE SENSOR DEVICE 失效
    图像传感器设备

    公开(公告)号:US20080198249A1

    公开(公告)日:2008-08-21

    申请号:US12031981

    申请日:2008-02-15

    IPC分类号: H04N5/335

    摘要: An object of the present invention is to provide a small-sized image sensor device having high precision of moving an object to be moved. The image sensor device includes: a fixed unit; a movable unit including an image sensor; a beam unit fixed to the fixed unit and movably supporting the movable unit; a driving unit for applying a driving force for moving the movable unit; and a wire unit provided for the beam unit and electrically connecting the image sensor and an external circuit.

    摘要翻译: 本发明的目的是提供一种移动待移动物体的高精度的小尺寸图像传感器装置。 图像传感器装置包括:固定单元; 包括图像传感器的可移动单元; 固定在固定单元上并可移动地支撑可动单元的梁单元; 用于施加用于移动可移动单元的驱动力的驱动单元; 以及为光束单元设置的电线单元并且电连接图像传感器和外部电路。