Quadrature modulator having phase shift and amplitude compensation
circuits
    42.
    发明授权
    Quadrature modulator having phase shift and amplitude compensation circuits 失效
    具有相移和幅度补偿电路的正交调制器

    公开(公告)号:US5367271A

    公开(公告)日:1994-11-22

    申请号:US130551

    申请日:1993-10-01

    CPC classification number: H04L27/2071

    Abstract: A quadrature modulator includes a 0.degree./90.degree. phase shifter including only resistors, capacitors, and transistors that separates an input carrier wave into two carrier waves having a phase difference of 90.degree. from each other by differentiating and integrating. The quadrature modulator includes amplitude compensating circuits for converting the two carrier waves from sinusoidal waveforms to rectangular waveforms having predetermined amplitudes. The amplitude compensating circuits are inserted between the phase shifter and double-balanced mixers. The phase shifter consists of circuit elements appropriate for circuit integration and produces a high degree of orthogonality in its output signals as a function of variations in the characteristic values of the circuit elements. Complementary carriers having precise orthogonality as well as superior balance are input to double-balanced mixers. Accordingly, a superior modulation wave having fewer spurious components is obtained easily with simplified circuit integration.

    Abstract translation: 正交调制器包括0°/ 90°移相器,其仅包括通过微分和积分将输入载波彼此相差90°的两个载波分离的电阻器,电容器和晶体管。 正交调制器包括用于将两个载波从正弦波形转换成具有预定幅度的矩形波形的幅度补偿电路。 振幅补偿电路插入在移相器和双平衡混频器之间。 移相器由适合于电路集成的电路元件组成,并且在其输出信号中产生高度正交性,作为电路元件的特性值的变化的函数。 具有精确正交性和优异平衡的互补载体输入双平衡混频器。 因此,通过简化的电路集成容易地获得具有较少杂散分量的优良调制波。

    SHEET STORAGE DEVICE AND IMAGE FORMING APPARATUS

    公开(公告)号:US20240345528A1

    公开(公告)日:2024-10-17

    申请号:US18631573

    申请日:2024-04-10

    Inventor: Kazuya YAMAMOTO

    Abstract: A sheet storage device includes a sheet storage, a handle, a cover, and a handle holder. The sheet storage is insertable into and removable from an apparatus body. The handle is for insertion and removal of the sheet storage into and from the apparatus body. The cover is attached in front of the sheet storage in a removal direction of the sheet storage. The handle holder holds the handle on the sheet storage, is disposed between the cover and the sheet storage, and has a restrictor that restricts deformation of the cover toward the sheet storage.

    SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE SHEET CONVEYING DEVICE

    公开(公告)号:US20210221636A1

    公开(公告)日:2021-07-22

    申请号:US17145956

    申请日:2021-01-11

    Abstract: A sheet conveying device includes a pair of rollers including a first roller and a second roller to hold a sheet conveyed between the first and second rollers; a biasing member to bias the first roller toward the second roller; a biasing force changer to change a biasing force of the biasing member; control circuitry to, when a predetermined changing condition is met, cause the changer to change the biasing force and cause the rollers to convey the sheet; an operation detector to detect a changing operation of the changer; and a notification device to notify an abnormality of the changing operation when the operation detector detects the abnormality. When the operation detector detects the abnormality, the control circuitry performs sheet conveyance control to cause the rollers to convey the sheet without causing the changer to change the biasing force, regardless of whether the predetermined changing condition is met.

    IMAGE FORMING APPARATUS AND IMAGE FORMING SYSTEM WITH CORRECTION MECHANISM
    46.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE FORMING SYSTEM WITH CORRECTION MECHANISM 有权
    具有校正机制的图像形成装置和图像形成系统

    公开(公告)号:US20160103410A1

    公开(公告)日:2016-04-14

    申请号:US14880051

    申请日:2015-10-09

    Inventor: Kazuya YAMAMOTO

    CPC classification number: G03G15/6564 G03G15/6567

    Abstract: An image forming apparatus and an image forming system, the image forming apparatus including a memory to store first side position and second side position detected by a side end detector, a correction mechanism to movably support at least a registration roller of a first sheet conveyor and a second sheet conveyor in a direction perpendicular to a sheet conveying direction, and a controller to calculate a deviation between the first side position and the second side position, and to set the deviation as a correction amount of the correction mechanism.

    Abstract translation: 一种图像形成装置和图像形成系统,所述图像形成装置包括存储器,用于存储由侧端检测器检测的第一侧位置和第二侧位置;校正机构,用于可移动地支撑至少第一片材输送机的定位辊;以及 第二纸张传送器,其沿与纸张输送方向垂直的方向,以及控制器,用于计算第一侧位置和第二侧位置之间的偏差,并将偏差设置为校正机构的校正量。

    Sheet processing apparatus with pressing unit, and image forming system
    48.
    发明授权
    Sheet processing apparatus with pressing unit, and image forming system 有权
    具有按压单元的片材处理设备和图像形成系统

    公开(公告)号:US09102185B2

    公开(公告)日:2015-08-11

    申请号:US14494479

    申请日:2014-09-23

    Inventor: Kazuya Yamamoto

    Abstract: A sheet processing apparatus includes: a stacking unit that stacks conveyed sheets; an aligning unit that aligns the sheets stacked on the stacking unit in a sheet conveying direction; a binding unit that moves along an end portion of a bundle of the sheets on a binding portion side and performs a binding process for the bundle of the sheets that have been aligned by the aligning unit; a pressing unit that presses the bundle of the sheets at the end portion thereof on the binding portion side; and an interlocking unit that moves the pressing unit in association with a motion of the binding unit.

    Abstract translation: 片材处理设备包括:堆叠所输送的片材的堆叠单元; 对准单元,其在片材输送方向上对齐堆叠单元上的片材; 捆绑单元,其沿着捆绑部分侧的纸张束的端部移动,并且对已经对准的对齐单元的纸张束执行装订处理; 按压单元,其在所述装订部分侧的端部处挤压所述片材束; 以及联锁单元,其与所述装订单元的运动相关联地移动所述按压单元。

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