REFERENCE SIGNAL GENERATOR CIRCUIT PROVIDED WITH TWO 90-DEGREE PHASE SHIFTERS AND TWO MIXER CIRCUITS
    1.
    发明申请
    REFERENCE SIGNAL GENERATOR CIRCUIT PROVIDED WITH TWO 90-DEGREE PHASE SHIFTERS AND TWO MIXER CIRCUITS 有权
    参考信号发生器电路提供两个90度相位变换器和两个混频器电路

    公开(公告)号:US20100225375A1

    公开(公告)日:2010-09-09

    申请号:US12704803

    申请日:2010-02-12

    IPC分类号: G06G7/14

    摘要: A first mixer circuit mixes a first center frequency signal with a first local oscillation signal to generate a second mixed signal, and mixes the first center frequency signal with a second local oscillation signal to generate a first mixed signal, and a second mixer circuit mixes a second center frequency signal with the first local oscillation signal to generate a fourth mixed signal, and mixes the second center frequency signal with the second local oscillation signal to generate a third mixed signal. An adder and subtracter circuit subtracts the third mixed signal from the second mixed signal to output a signal of subtraction result as a first upper side band signal, and adds the first mixed signal to the fourth mixed signal to output a signal of addition result as a second upper side band signal different in phase from the first upper side band signal by 90 degrees.

    摘要翻译: 第一混频器电路将第一中心频率信号与第一本地振荡信号混合以产生第二混合信号,并且将第一中心频率信号与第二本地振荡信号混合以产生第一混合信号,并且第二混频器电路将 第二中心频率信号与第一本地振荡信号产生第四混合信号,并且将第二中心频率信号与第二本地振荡信号混合以产生第三混合信号。 加法器和减法器电路从第二混合信号中减去第三混合信号,以输出相减结果的信号作为第一上边带信号,并将第一混合信号加到第四混合信号,以输出加法结果信号作为 第二上边带信号与第一上边带信号的相位不同90度。

    Reference signal generator circuit with filter-less quadrature mixers for wide-band applications
    2.
    发明授权
    Reference signal generator circuit with filter-less quadrature mixers for wide-band applications 有权
    具有无滤波器正交混频器的参考信号发生器电路,用于宽带应用

    公开(公告)号:US08040173B2

    公开(公告)日:2011-10-18

    申请号:US12704803

    申请日:2010-02-12

    IPC分类号: G06G7/12

    摘要: A first mixer circuit mixes a first center frequency signal with a first local oscillation signal to generate a second mixed signal, and mixes the first center frequency signal with a second local oscillation signal to generate a first mixed signal, and a second mixer circuit mixes a second center frequency signal with the first local oscillation signal to generate a fourth mixed signal, and mixes the second center frequency signal with the second local oscillation signal to generate a third mixed signal. An adder and subtracter circuit subtracts the third mixed signal from the second mixed signal to output a signal of subtraction result as a first upper side band signal, and adds the first mixed signal to the fourth mixed signal to output a signal of addition result as a second upper side band signal different in phase from the first upper side band signal by 90 degrees.

    摘要翻译: 第一混频器电路将第一中心频率信号与第一本地振荡信号混合以产生第二混合信号,并且将第一中心频率信号与第二本地振荡信号混合以产生第一混合信号,并且第二混频器电路将 第二中心频率信号与第一本地振荡信号产生第四混合信号,并且将第二中心频率信号与第二本地振荡信号混合以产生第三混合信号。 加法器和减法器电路从第二混合信号中减去第三混合信号,以输出相减结果的信号作为第一上边带信号,并将第一混合信号加到第四混合信号,以输出加法结果信号作为 第二上边带信号与第一上边带信号的相位不同90度。

    High frequency oscillator circuit with feedback circuit of fet and short-stub transmission line
    3.
    发明申请
    High frequency oscillator circuit with feedback circuit of fet and short-stub transmission line 有权
    高频振荡电路,带有反馈电路和短路输电线路

    公开(公告)号:US20080238566A1

    公开(公告)日:2008-10-02

    申请号:US12076697

    申请日:2008-03-21

    IPC分类号: H03L7/099 H03B5/24

    摘要: In a high frequency oscillator circuit including first and second field effect transistors, the first field effect transistor has a gate connected to a short-stub transmission line and a drain connected to an oscillation output terminal, and the second field effect transistor has a drain connected to a source of the first field effect transistor and a grounded source. The high frequency oscillator circuit oscillates by using a feedback circuit including the short-stub transmission line and the second field effect transistor. A feedback capacitor is further provided which is connected between a gate of the second field effect transistor and the drain of the first field effect transistor.

    摘要翻译: 在包括第一和第二场效应晶体管的高频振荡器电路中,第一场效应晶体管具有连接到短路短路传输线的栅极和连接到振荡输出端的漏极,第二场效应晶体管的漏极连接 到第一场效应晶体管的源极和接地源。 高频振荡器电路通过使用包括短截线传输线和第二场效应晶体管的反馈电路而振荡。 还提供反馈电容器,其连接在第二场效应晶体管的栅极和第一场效应晶体管的漏极之间。

    High frequency oscillator circuit with feedback circuit of fet and short-stub transmission line
    4.
    发明授权
    High frequency oscillator circuit with feedback circuit of fet and short-stub transmission line 有权
    高频振荡电路,带有反馈电路和短路输电线路

    公开(公告)号:US07724099B2

    公开(公告)日:2010-05-25

    申请号:US12076697

    申请日:2008-03-21

    IPC分类号: H01L23/66

    摘要: In a high frequency oscillator circuit including first and second field effect transistors, the first field effect transistor has a gate connected to a short-stub transmission line and a drain connected to an oscillation output terminal, and the second field effect transistor has a drain connected to a source of the first field effect transistor and a grounded source. The high frequency oscillator circuit oscillates by using a feedback circuit including the short-stub transmission line and the second field effect transistor. A feedback capacitor is further provided which is connected between a gate of the second field effect transistor and the drain of the first field effect transistor.

    摘要翻译: 在包括第一和第二场效应晶体管的高频振荡器电路中,第一场效应晶体管具有连接到短路短路传输线的栅极和连接到振荡输出端的漏极,第二场效应晶体管的漏极连接 到第一场效应晶体管的源极和接地源。 高频振荡器电路通过使用包括短截线传输线和第二场效应晶体管的反馈电路而振荡。 还提供反馈电容器,其连接在第二场效应晶体管的栅极和第一场效应晶体管的漏极之间。

    Ink jet printer capable of forming high definition images
    5.
    发明授权
    Ink jet printer capable of forming high definition images 失效
    能够形成高分辨率图像的喷墨打印机

    公开(公告)号:US07448713B2

    公开(公告)日:2008-11-11

    申请号:US11730484

    申请日:2007-04-02

    IPC分类号: B41J2/205

    摘要: An ink jet printer ejects ink droplets of a plurality of sizes based on image data, and prints dots of a plurality of sizes corresponding to the ink droplets of the plurality of sizes for recording the image. In the ink jet printer, in order to print a smoothing dot close to a normal dot, pulse voltage having a waveform having its printing timing changed from a waveform for printing the normal dot is applied to a piezoelectric element. As a result, an ink jet printer capable of recording high definition images can be provided.

    摘要翻译: 喷墨打印机基于图像数据喷射多个尺寸的墨滴,并且打印与用于记录图像的多个尺寸的墨滴对应的多个尺寸的点。 在喷墨打印机中,为了打印接近正常点的平滑点,将具有从打印正常点的波形改变的打印定时的波形的脉冲电压施加到压电元件。 结果,可以提供能够记录高分辨率图像的喷墨打印机。

    Ink jet printer outputting high quality image and method of using same
    6.
    发明授权
    Ink jet printer outputting high quality image and method of using same 失效
    输出高质量图像的喷墨打印机及其使用方法

    公开(公告)号:US06293642B1

    公开(公告)日:2001-09-25

    申请号:US09062466

    申请日:1998-04-20

    申请人: Eiichi Sano

    发明人: Eiichi Sano

    IPC分类号: B41J2205

    摘要: An ink jet printer is adapted to drive a piezoelectric element by applying pulse voltage having waveforms of A1-A8 based on image data, fly ink drops respectively having sizes corresponding to waveforms A1-A8 of the pulse voltage, and record an image on a recording sheet. In the ink jet printer, a rise rate of pulse voltage having waveforms A1-A3 corresponding to ink drops of relatively small sizes is set such that the rise rate is high compared with that of pulse voltage having waveforms A4-A8.

    摘要翻译: 喷墨打印机适于通过施加具有基于图像数据的具有A1-A8波形的脉冲电压来驱动压电元件,分别具有与脉冲电压的波形A1-A8对应的尺寸的飞墨滴,并将图像记录在记录上 片。 在喷墨打印机中,与具有相对小尺寸的墨滴相对应的具有波形A1-A3的脉冲电压的上升率被设定为与具有波形A4-A8的脉冲电压相比上升速率高。

    Fixing device with endless belt
    7.
    发明授权
    Fixing device with endless belt 失效
    固定装置带环带

    公开(公告)号:US5873020A

    公开(公告)日:1999-02-16

    申请号:US747403

    申请日:1996-11-12

    IPC分类号: G03G15/20

    摘要: A fixing device includes a heater and a fixing belt entrained around first and second supporting rollers. A pressure roller is arranged outside the belt. Also, an elastic forcing member is arranged inside the belt to force a portion of the belt running between the two supporting rollers against the pressure roller so that the belt portion is brought into circumferential contact with the pressure roller to form an extended nipping region. In addition, a braking device connected to an upstream support roller stretches the belt at the nip region. With this arrangement enough amount of heat is supplied to a recording medium and toner image flattening is prevented.

    摘要翻译: 定影装置包括加热器和夹带在第一和第二支撑辊周围的定影带。 压力辊布置在皮带外部。 此外,弹性强制构件布置在带内,以迫使一部分皮带在两个支撑辊之间行进抵靠压力辊,使得皮带部分与加压辊形成圆周接触以形成延伸夹持区域。 此外,连接到上游支撑辊的制动装置在夹持区域处拉伸带。 利用这种布置,足够的热量被供应到记录介质,并且防止调色剂图像变平。

    Fundus camera
    8.
    发明授权
    Fundus camera 失效
    眼底相机

    公开(公告)号:US5287129A

    公开(公告)日:1994-02-15

    申请号:US786467

    申请日:1991-11-04

    IPC分类号: A61B3/14 A61B3/02 G02B5/22

    CPC分类号: A61B3/14

    摘要: This invention concerns a fundus camera which can take photographs other than by fluorescence or by fluorescence. An optical device is withdrawn from the optical path of a photographic system at the same time as a barrier filter for taking photographs by fluorescence is inserted and is inserted in the optical path of the photographic system for observation purposes at the same time as the barrier filter is removed. The optical device has the same optical path length as the barrier filter, and thus a focused fundus image attained during observation is not upset when fluorescent photographs are taken.

    摘要翻译: 本发明涉及一种能够拍摄除荧光或荧光以外的照片的眼底照相机。 光学装置与照相系统的光路同时被抽出,用于通过荧光插入拍摄照片的屏障滤光片并将其插入到摄影系统的光路中,以便与屏障滤光器同时进行观察 被删除。 光学器件具有与屏障滤光片相同的光程长度,因此在拍摄荧光照片时,在观察期间获得的聚焦眼底图像不会不舒服。

    Developer having specific spheriodicity
    10.
    发明授权
    Developer having specific spheriodicity 失效
    具有特定球形度的显影剂

    公开(公告)号:US4996126A

    公开(公告)日:1991-02-26

    申请号:US299551

    申请日:1989-01-18

    IPC分类号: G03G9/08 G03G9/10

    摘要: This invention relates to a two-components developer containing toners and carriers wherein the toners have spheroidicity of 150 or less, mean particle size of 14 .mu.m or less and coefficient of variation of 15% or less, and the carriers have mean particle size of between 20 .mu.m and 70 .mu.m and/or spheroidicity of 140 or more.

    摘要翻译: 本发明涉及含有调色剂和载体的双组分显影剂,其中调色剂的球形度为150以下,平均粒径为14μm以下,变异系数为15%以下,载体的平均粒径为 20微米到70微米之间,和/或球形度在140以上。