Digitally controlled tuner with automatic fine tuning
    61.
    发明授权
    Digitally controlled tuner with automatic fine tuning 失效
    数字控制调谐器,具有自动微调功能

    公开(公告)号:US4127822A

    公开(公告)日:1978-11-28

    申请号:US752427

    申请日:1976-12-20

    CPC classification number: H03J7/28 H03J5/0263

    Abstract: A tuning system for digitally controlled electronically tuned tuner with automatic fine tuning (AFT) constantly operable to hold the tuner at a predetermined optimum frequency setting, especially a television channel. A reversible counter provides the digital signal to control the tuning of the tuner and is, itself, deliberately shifted from one setting to another by pulses from a source, such pulses being applied to the UP input terminal of the counter as the up-tuning pulses to shift the tuner frequency higher. Pulses from the same source are also used as down-tuning pulses when applied to the DOWN input terminal of the tuning pulses to a lower frequency supplied to two AFT AND circuits. One output logic up-tuning instruction signal E.sub.U of the AFT circuit enables the up-tuning AFT AND circuit only in a certain sub-range below the desired frequency. The other output logic down-tuning instruction signal E.sub.D of the AFT circuit enables the other AFT AND circuit only in a certain sub-range above the desired frequency. Consequently, deliberate application of up-or-down-tuning pulses to the UP or DOWN terminals changes the count as desired, being only partially counteracted by the lower frequency, AFT-controlled pulses to the opposite counter terminal.

    Abstract translation: 一种用于数字控制的电子调谐调谐器的调谐系统,具有自动微调(AFT),其经常可操作地将调谐器保持在预定的最佳频率设置,特别是电视频道。 可逆计数器提供数字信号以控制调谐器的调谐,并且本身通过来自源的脉冲从一个设置故意地移位到另一个设置,这样的脉冲被施加到计数器的UP输入端作为上调脉冲 使调谐器频率更高。 当将调谐脉冲的DOWN输入端施加到提供给两个AFT AND电路的较低频率时,来自相同源的脉冲也用作下调脉冲。 AFT电路的一个输出逻辑上调指令信号EU只能在低于期望频率的某个子范围内进行上调AFT AND电路。 AFT电路的另一个输出逻辑降频指令信号ED只能在所需频率之上的某个子范围内使其他AFT AND电路。 因此,向UP或DOWN端子故意施加上升或下降调谐脉冲根据需要改变计数,仅通过较低频率AFT控制的脉冲部分抵消到相对的计数器端子。

    Multi-pass image forming apparatus and image forming method using the same
    66.
    发明申请
    Multi-pass image forming apparatus and image forming method using the same 失效
    多遍图像形成装置及使用其的图像形成方法

    公开(公告)号:US20060285883A1

    公开(公告)日:2006-12-21

    申请号:US11441057

    申请日:2006-05-26

    CPC classification number: G03G15/00 G03G15/04045

    Abstract: Provided are a multi-pass image forming apparatus and an image forming method using the same. The multi-pass image forming apparatus includes a plurality of developers for forming a plurality of electrostatic latent images using toners having different polarities and colors in one development process and for forming a multi-color image in at least two development processes; an exposure unit for forming the plurality of the electrostatic latent images on a photosensitive medium; and an intermediate transferring unit for having a toner images transferred thereon from the photosensitive medium that overlap to form the multi-color image, wherein the toner image may overlap another toner image on the intermediate transferring unit.

    Abstract translation: 提供一种多遍图像形成装置和使用其的图像形成方法。 多遍图像形成装置包括:多个显影剂,用于在一个显影过程中使用具有不同极性和颜色的调色剂形成多个静电潜像,并且用于在至少两个显影过程中形成多色图像; 用于在感光介质上形成多个静电潜像的曝光单元; 以及中间转印单元,用于使从其上重叠形成多色图像的感光介质转印到其上的调色剂图像,其中调色剂图像可能与中间转印单元上的另一个调色剂图像重叠。

    Charge amount detection circuit and two-dimensional image sensor using same
    67.
    发明授权
    Charge amount detection circuit and two-dimensional image sensor using same 有权
    充电量检测电路和使用其的二维图像传感器

    公开(公告)号:US06797932B2

    公开(公告)日:2004-09-28

    申请号:US09821605

    申请日:2001-03-29

    Abstract: In a charge amount detection circuit, one part of circuit elements constituting a low pass filter circuit and one part of circuit elements constituting a voltage amplifier circuit are commonly use. A charge sensitive amplifier is followed by the low pass filter circuit and the voltage amplifier circuit, respectively, in this order. Since the low pass filter circuit is provided so as to share one part of circuit elements of the voltage amplifier circuit, it is possible to suppress the enlargement of the chip size due to the provision of LPF as much as possible so as to suppress the rise of the chip cost as much as possible.

    Abstract translation: 在电荷量检测电路中,通常使用构成低通滤波器电路的一部分电路元件和构成电压放大器电路的一部分电路元件。 电荷敏感放大器分别依次是低通滤波器电路和电压放大器电路。 由于提供低通滤波器电路以共享电压放大器电路的一部分电路元件,所以可以抑制由于尽可能多地提供LPF而导致的芯片尺寸的放大,以便抑制上升 的芯片成本尽可能多。

    Image forming apparatus having developing supporters
    68.
    发明授权
    Image forming apparatus having developing supporters 有权
    具有开发支持者的图像形成装置

    公开(公告)号:US06507715B2

    公开(公告)日:2003-01-14

    申请号:US09899077

    申请日:2001-07-06

    Applicant: Hisao Okada

    Inventor: Hisao Okada

    CPC classification number: G03G15/065 G03G2215/0648

    Abstract: An image forming apparatus includes a developing device including plural developer supporters provided opposite to a photoconductor, a development bias applying unit for applying a development bias voltage generated by superimposing an AC voltage on a DC voltage to each of the developer supporters, and a phase shifter for shifting a phase of the AC voltage in the development bias voltage in each of the developer supporters.

    Abstract translation: 图像形成装置包括:显影装置,包括与光电导体相对设置的多个显影剂支持体;显影偏压施加单元,用于将通过将AC电压叠加到每个显影剂支撑体上的DC电压而产生的显影偏压;以及移相器 用于使每个显影剂支持体中的显影偏压中的交流电压的相位移动。

    Image forming electrophotography apparatus and magnetic developing unit
    69.
    发明授权
    Image forming electrophotography apparatus and magnetic developing unit 有权
    图像形成电子照相设备和磁性显影单元

    公开(公告)号:US06487384B2

    公开(公告)日:2002-11-26

    申请号:US09826943

    申请日:2001-04-06

    CPC classification number: G03G13/013 G03G2215/0174 G03G2215/0495

    Abstract: In an image forming apparatus for charging a photosensitive body, changing the light exposure amount in at least three levels at exposure to light, thereby forming an electrostatic image made up of a high-potential part, a low-potential part, and an intermediate-potential part therebetween on the photosensitive body, and normally developing and inversely developing the electrostatic image using toners different in charge polarity for forming two types of toner images on the photosensitive body, a first developer used with a first toner image developing unit has electric resistance changed within 10% in the change range of applied voltage to the developer as the difference between a surface potential of the photosensitive body and a developing bias voltage.

    Abstract translation: 在用于对感光体充电的图像形成装置中,在曝光时将曝光量改变为至少三个等级,从而形成由高电位部分,低电位部分和中间电极部分构成的静电图像, 在感光体上的潜在部分,并且使用不同于电荷极性的调色剂正常显影和反相显影静电图像,以在感光体上形成两种类型的调色剂图像,与第一调色剂图像显影单元一起使用的第一显影剂具有电阻改变 在作为感光体的表面电位与显影偏压之间的差异的显影剂的施加电压的变化范围内的10%以内。

    Developing device for image forming apparatus
    70.
    发明授权
    Developing device for image forming apparatus 有权
    成像装置显影装置

    公开(公告)号:US06345163B1

    公开(公告)日:2002-02-05

    申请号:US09669673

    申请日:2000-09-26

    Abstract: A developing device for use in an image forming apparatus has control means operatively responsive to receipt of an output signal of a first toner density detector means provided in a development unit for driving developing powder delivery means provided in a preliminary mixture/stirring unit to supply developing powder from a stirring chamber toward the development unit, while controlling regulator means so that introduction of the developing powder to the stirring chamber is inhibited at least within a developing powder refilling time period.

    Abstract translation: 用于图像形成装置的显影装置具有控制装置,其操作响应于接收设置在显影单元中的第一调色剂浓度检测器装置的输出信号,用于驱动设置在预混合/搅拌单元中的显影粉输送装置,以提供显影 粉末从搅拌室朝向显影单元,同时控制调节装置,使得至少在显影粉末再填充时间段内至少抑制显影粉末向搅拌室的引入。

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