Light scanning device and image forming apparatus using the same
    81.
    发明授权
    Light scanning device and image forming apparatus using the same 失效
    光扫描装置及使用其的成像装置

    公开(公告)号:US06803942B2

    公开(公告)日:2004-10-12

    申请号:US10158887

    申请日:2002-06-03

    IPC分类号: G02B2608

    CPC分类号: G02B26/125 G02B13/0005

    摘要: It is an object of this invention to provide a light scanning device capable of suppressing a scanning line bend to a low level, which is caused by the arrangement error of a single-element lens serving as an imaging optical element, and an image forming apparatus using the device. In order to achieve the object, according to this invention, an imaging optical system is formed from a single-element lens, and a sectional shape of an exit surface in the main scanning direction is an arcuated shape. The power in the sub scanning direction substantially concentrates on the exit surface having an arcuated sectional shape in the main scanning direction, and the arcuated shape (curvature) in the main scanning direction is so determined as to make the magnification in the sub scanning direction uniform.

    摘要翻译: 本发明的目的是提供一种能够将作为成像光学元件的单像素透镜的布置误差引起的扫描线弯曲抑制到低电平的光扫描装置,以及图像形成装置 使用设备。 为了实现该目的,根据本发明,由单一元件透镜形成成像光学系统,并且主扫描方向上的出射面的截面形状为弧形。 副扫描方向上的功率基本上集中在主扫描方向上具有弧形截面形状的出射表面,并且确定主扫描方向上的弧形形状(曲率),以使副扫描方向上的倍率均匀 。

    Compact photographing lens
    82.
    发明授权
    Compact photographing lens 失效
    紧凑型拍摄镜头

    公开(公告)号:US06728047B2

    公开(公告)日:2004-04-27

    申请号:US10374398

    申请日:2003-02-26

    IPC分类号: G02B912

    摘要: This invention is related to a compact photographing lens wherein an aperture stop is arranged at a position closest to an object, a first lens group, a second lens group, and a third lens group are arranged sequentially from the object side, the first lens group is formed by arranging, sequentially from the object side, a first lens having a positive refracting power and a second lens having a negative refracting power and bonded to the first lens, the second lens being formed from a meniscus lens with a concave surface facing the object side, the second lens group is formed from only a third lens as a meniscus lens which has at least one aspherical refracting surface and a concave surface facing the object side, the third lens group is formed from only a fourth lens as a meniscus lens which has at least one aspherical refracting surface and a convex surface facing the object side.

    摘要翻译: 本发明涉及一种小型拍摄镜头,其中孔径光阑被布置在最靠近物体的位置,第一透镜组,第二透镜组和第三透镜组从物体侧依次布置,第一透镜组 通过从物体侧依次布置具有正折射率的第一透镜和具有负折射率的第二透镜并结合到第一透镜,第二透镜由具有面向第一透镜的凹面的弯月形透镜形成, 物镜侧,第二透镜组仅由具有至少一个非球面折射表面和面向物体侧的凹面的弯月形透镜形成,第三透镜​​组仅由作为弯月形透镜的第四透镜形成 其具有至少一个非球面折射表面和面向物体侧的凸形表面。

    Diffractive optical element and image reader using the same
    83.
    发明授权
    Diffractive optical element and image reader using the same 失效
    衍射光学元件和使用其的图像读取器

    公开(公告)号:US06683718B2

    公开(公告)日:2004-01-27

    申请号:US09961422

    申请日:2001-09-25

    IPC分类号: G02B518

    摘要: A laminate-type diffractive optical element which is easily producible and which allows high optical performance to be easily achieved, and an optical system using the same, are disclosed. In the diffractive optical element formed by laminating a plurality of diffraction gratings, when the distance between the uppermost portion of one diffraction grating and the lowermost portion of the other diffraction grating in two diffraction gratings adjacent to each other along the incident direction of a light is represented by D (&mgr;m), these two diffraction gratings are arranged to satisfy the following relation: 10 &mgr;m

    摘要翻译: 公开了容易制造且容易实现高光学性能的层叠型衍射光学元件,以及使用该衍射光学元件的光学系统。 在通过层叠多个衍射光栅形成的衍射光学元件中,沿着光的入射方向彼此相邻的两个衍射光栅中的一个衍射光栅的最上部与另一衍射光栅的最下部之间的距离为 由D(mum)表示,这两个衍射光栅被设置为满足以下关系:10μm

    Data processing device and data order converting method
    85.
    发明授权
    Data processing device and data order converting method 失效
    数据处理设备和数据订单转换方法

    公开(公告)号:US06556725B1

    公开(公告)日:2003-04-29

    申请号:US09566957

    申请日:2000-05-08

    IPC分类号: G06K932

    摘要: A column address is decoded by each column decoder, and an arrangement of pixels to be written to a memory cell array is rotated by a rotation circuit. The rotation result is written to the memory cell array in accordance with the decoding result of the column address. Then, the column address is decoded by each column decoder to a decoding result which is different from the decoding result of the column address at the time of writing. In accordance with the decoding result, pixels stored in the memory cell array are read. The arrangement of the read pixels is rotated by the rotation circuit and then outputted. Thus, rearrangement of pixels constituting an image can be carried out quickly while avoiding any increase in the size of the device.

    摘要翻译: 列地址由每个列解码器解码,并且要写入存储单元阵列的像素排列由旋转电路旋转。 根据列地址的解码结果将旋转结果写入存储单元阵列。 然后,列地址由每个列解码器解码为与写入时的列地址的解码结果不同的解码结果。 根据解码结果,读出存储在存储单元阵列中的像素。 读取像素的布置由旋转电路旋转,然后输出。 因此,可以在避免装置的尺寸的任何增加的同时快速地执行构成图像的像素的重排。

    Vehicle speed control system
    86.
    发明授权

    公开(公告)号:US06513611B2

    公开(公告)日:2003-02-04

    申请号:US09988262

    申请日:2001-11-19

    IPC分类号: B60K3104

    CPC分类号: B60K31/04 F16H61/662

    摘要: A system for controlling a speed of a vehicle having a continuously variable transmission (CVT) and a cruise controller which controls the traveling speed of the vehicle to a desired speed in response to an instruction to cruise control inputted by a vehicle operator. In the system, the speed ratio is fixed to a value, at which the instruction to cruise control is inputted, for a predetermined period of time since inputting of the instruction to cruise control. The speed ratio may be fixed to the value until the throttle opening has stabilized or the vehicle speed is equal to the desired vehicle speed even after the predetermined period of time has elapsed. Alternatively, a parameter indicative of upslope of the road where the vehicle climbs is determined and the speed ratio may be controlled-based on the parameter and the vehicle speed, or thereafter until the throttle opening has stabilized or the vehicle speed is equal to the desired vehicle speed. With this, the system can reduce throttle opening change and can decrease variation in vehicle speed when the cruise control is effected.

    Semiconductor integrated circuit and nonvolatile semiconductor memory
    88.
    发明授权
    Semiconductor integrated circuit and nonvolatile semiconductor memory 失效
    半导体集成电路和非易失性半导体存储器

    公开(公告)号:US06473321B2

    公开(公告)日:2002-10-29

    申请号:US09883237

    申请日:2001-06-19

    IPC分类号: H02M318

    摘要: For a semiconductor integrated circuit having an internal booster circuit such as a flash memory, voltage booster circuits capable of generating a boosted voltage 10 times or more as high as a relatively low source voltage is to be realized. Charge pumps for carrying out first stage voltage boosting on the basis of a source voltage are configured of parallel capacity type units, and charge pumps for carrying out second stage voltage boosting on the basis of the boosted voltage generated by the first charge pumps are configured of serial capacity type units.

    摘要翻译: 对于具有诸如闪速存储器的内部升压电路的半导体集成电路,可以实现能够产生相当低的源电压的10倍或更高的升压电压的升压电路。 基于源电压进行第一级升压的充电泵由并联容量型单元构成,并且基于由第一电荷泵产生的升压电压进行第二级升压的电荷泵由 串口容量型号。

    Method and apparatus for detecting tire revolution using magnetic field
    90.
    发明授权
    Method and apparatus for detecting tire revolution using magnetic field 有权
    使用磁场检测轮胎转速的方法和装置

    公开(公告)号:US06246226B1

    公开(公告)日:2001-06-12

    申请号:US09547887

    申请日:2000-04-12

    IPC分类号: G01P344

    CPC分类号: G01P3/487 B60C2019/005

    摘要: A tire (12) used includes a steel belt in its outer circumferential portion. A magnetic sensor (14) including a pair of magnetic detection elements (18A, 18B), which are arranged so that their magnetic detection directions become parallel to each other or series each other, is set in the vicinity of a rear tire (12) in a trunk room of a vehicle (10). Changes in magnetic field upon revolution of the tire (12) are differentially detected by the magnetic detection elements (18A, 18B), and the revolution of the tire (12) is detected on the basis of the differentially detected output waveform. Among a plurality of peaks present in the differentially detected output waveform, a peak, the potential difference from the immediately preceding peak of which is equal to or larger than a predetermined threshold value, is detected as an effective peak, which is effective for tire revolution detection, and the revolution speed of the tire is calculated by detecting the number of effective peaks.

    摘要翻译: 使用的轮胎(12)在其外周部分包括钢带。 在后轮胎(12)的附近设置包括一对磁检测元件(18A,18B)的磁传感器(14),被配置为使得它们的磁检测方向相互平行或彼此串联, 在车辆(10)的行李箱中。 通过磁检测元件(18A,18B)差别地检测轮胎(12)转动时的磁场变化,并且基于差分检测的输出波形来检测轮胎(12)的旋转。 在差分检测输出波形中存在的多个峰中,检测出与先前峰值的电位差等于或大于预定阈值的峰值作为对轮胎转速有效的有效峰值 通过检测有效峰值的数量来计算轮胎的转速。