Decision-feedback type equalizer
    11.
    发明授权
    Decision-feedback type equalizer 失效
    决策反馈型均衡器

    公开(公告)号:US5668833A

    公开(公告)日:1997-09-16

    申请号:US616534

    申请日:1996-03-15

    CPC分类号: H04L25/03057

    摘要: A decision-feedback type equalizer comprising a forward equalizer for receiving digital pre-equalization signals and error signals as input signals, for reducing intersymbol interference caused by the lead echo of the pre-equalization signals, and for outputting forward equalization signals; a backward equalizer for reducing intersymbol interference caused by the delay echo of input signals, and for producing output in the form of backward equalization signals; an adder for adding forward equalization signals and backward equalization signals, and for outputting equalization signals; a decision device for comparing the equalization signals with reference values, and for outputting decision signals; a subtracter for subtracting the equalization signals and decision signals, and for producing and outputting error signals which are differences; an alarm emitter for detecting, from the signal states of the error signals, whether an abnormal state exists, and for emitting an alarm when an abnormal state is detected; and a selection circuit which, depending on whether an alarm emitter output alarm signal is present or absent, is used for selecting either equalization signals or decision signals, and which, when there is alarm signal input, is used for selecting equalization signals and for supplying them as input signals to the backward equalizer, such that detection of the alarm condition reduces propagation or magnification of errors caused by noise.

    摘要翻译: 一种判决反馈型均衡器,包括用于接收数字预均衡信号和误差信号作为输入信号的前向均衡器,用于减少由均衡前信号引出的回波引起的符号间干扰,并输出正向均衡信号; 用于减少由输入信号的延迟回波引起的符号间干扰并且以反向均衡信号的形式产生输出的反向均衡器; 用于将正向均衡信号和反向均衡信号相加并用于输出均衡信号的加法器; 判定装置,用于将均衡信号与参考值进行比较,并用于输出判定信号; 用于减去均衡信号和判定信号的减法器,以及用于产生和输出差分的误差信号; 用于从所述误差信号的信号状态检测是否存在异常状态并且在检测到异常状态时发出报警的报警发射器; 以及根据报警发射器输出报警信号是否存在而选择的选择电路,用于选择均衡信号或判定信号,当使用报警信号输入时,选择均衡信号并供给 它们作为向后均衡器的输入信号,使得警报状况的检测降低了由噪声引起的误差的传播或放大。

    Sealing structure and apparatus using the same
    12.
    发明申请
    Sealing structure and apparatus using the same 有权
    密封结构和使用其的设备

    公开(公告)号:US20080008224A1

    公开(公告)日:2008-01-10

    申请号:US11318553

    申请日:2005-12-28

    IPC分类号: G01K17/00

    CPC分类号: G01F1/684 G01F5/00 G01F15/18

    摘要: A substrate includes a first surface portion, which covers a heat receiving portion of a radiation member together with a resinous member. The substrate further includes a second surface portion, which is on the outer periphery of the first surface portion. The substrate makes contact with the resinous member via the second surface portion. The first surface portion and the heat receiving portion have a first contact boundary therebetween. The second surface portion and the resinous member have a second contact boundary that surrounds the first contact boundary. The second contact boundary is sealed using a sealing member. The sealing member is restricted from flowing into a boundary between the first contact boundary and the second contact boundary.

    摘要翻译: 衬底包括第一表面部分,其与树脂构件一起覆盖辐射构件的受热部分。 基板还包括在第一表面部分的外周上的第二表面部分。 基板经由第二表面部分与树脂构件接触。 第一表面部分和热接收部分之间具有第一接触边界。 第二表面部分和树脂构件具有围绕第一接触边界的第二接触边界。 第二接触边界使用密封件密封。 密封构件被限制流入第一接触边界和第二接触边界之间的边界。

    Image recording apparatus with jet and suction
    13.
    发明授权
    Image recording apparatus with jet and suction 有权
    具有喷射和抽吸的图像记录装置

    公开(公告)号:US07230636B2

    公开(公告)日:2007-06-12

    申请号:US10793842

    申请日:2004-03-08

    IPC分类号: B41J2/435

    CPC分类号: G03F7/24

    摘要: A gas is generated from a printing plate by exposure of the printing plate. A gas diffusing suction unit jets air from air jet ports to diffuse the gas generated from the printing plate by irradiation of laser light. The gas diffused by the air is sucked along with the air from a gas suction opening of the gas diffusing suction unit. At this time, a gas suction velocity is set to 1.2 or more times an air jet velocity to suck the gas/air efficiently. The gas/air may be sucked efficiently by setting a volume of suction to 30 or more times a volume of air jet.

    摘要翻译: 通过印版印刷从印版产生气体。 气体扩散吸引单元从空气喷射口射出空气,通过照射激光来扩散从印版产生的气体。 由空气扩散的气体与来自气体扩散抽吸单元的气体吸入口的空气一起吸入。 此时,气体吸入速度被设定为空气喷射速度的1.2倍以上,以有效地吸入气体/空气。 通过将抽吸量设定为空气喷射体积的30倍或更多倍,可以有效地吸入气体/空气。

    Airflow meter
    14.
    发明授权
    Airflow meter 有权
    气流计

    公开(公告)号:US07043978B2

    公开(公告)日:2006-05-16

    申请号:US11115352

    申请日:2005-04-27

    IPC分类号: G01F1/68

    CPC分类号: G01F1/6842 G01F5/00

    摘要: An airflow meter has a bypass passage disposed in an air passage and a sensing portion disposed in the bypass passage to detect an airflow amount. The bypass passage is provided with a restriction portion to gradually decrease a passage width of the bypass passage in an airflow direction in the bypass passage. The restriction portion includes a first restriction portion and the second restriction portion disposed at an immediately downstream side of a narrowest portion of the first restriction portion. The first restriction portion gradually decreases the passage width in the airflow direction. The second restriction portion increases the passage width than the passage width at the narrowest portion in a stepped manner. The sensing portion is located in a bound in which the restriction portion is disposed.

    摘要翻译: 气流计具有布置在空气通道中的旁通通道和设置在旁路通道中的检测部分以检测气流量。 旁路通道设置有限制部,以在旁通通路中沿着气流方向逐渐减小旁通通路的通路宽度。 限制部分包括第一限制部分和设置在第一限制部分的最窄部分的紧下游侧的第二限制部分。 第一限制部逐渐减小风向的通过宽度。 第二限制部分使通道宽度以阶梯方式在最窄部分处的通道宽度增加。 感测部位于设置有限制部的边界。

    Slack storage apparatus for optical fibers
    15.
    发明授权
    Slack storage apparatus for optical fibers 有权
    光纤松弛存储装置

    公开(公告)号:US06731852B2

    公开(公告)日:2004-05-04

    申请号:US10142970

    申请日:2002-05-13

    申请人: Hideki Matsuura

    发明人: Hideki Matsuura

    IPC分类号: G02B600

    CPC分类号: G02B6/4452

    摘要: A slack storage assembly for storing optical fibers 11 includes fixed plates 51 disposed in horizontal posture, first movable plates 52 disposed parallel to the fixed plates 51 to be movable toward and away from the fixed plates 51, and second movable plates 53 disposed parallel to the first movable plates 52 to be movable toward and away from the first movable plates 52. The optical fibers 11 are fixed as pinched between the fixed plates 51 and first movable plates 52 and between the first movable plates 52 and second movable plates 53.

    摘要翻译: 用于存储光纤11的松弛存储组件包括以水平姿态设置的固定板51,平行于固定板51设置的能够朝向和远离固定板51移动的第一可移动板52和平行于固定板51设置的第二可动板53 第一可移动板52能够朝向和远离第一可移动板52移动。光纤11被夹持固定在固定板51和第一可移动板52之间以及第一可移动板52和第二可移动板53之间。

    Decision feedback equalizer
    17.
    发明授权
    Decision feedback equalizer 失效
    决策反馈均衡器

    公开(公告)号:US5402445A

    公开(公告)日:1995-03-28

    申请号:US102258

    申请日:1993-08-05

    申请人: Hideki Matsuura

    发明人: Hideki Matsuura

    CPC分类号: H04B7/005

    摘要: A decision feedback equalizer capable of coping with a high transmission rate and operable at a rate which is not effected by the number of taps. A first and a second shift register are respectively connected between a first and a second adder and between the second and a third adder. The output of a decision unit associated with the last tap is delayed one bit by a third shift register and then applied to multipliers at the same time. The multipliers, each being associated with respective tap, multiply their inputs by a first to a third tap coefficient, respectively. The resulting outputs of the multipliers are applied to the associated adders. The adders each has only to perform a single addition within a period of time corresponding to one bit.

    摘要翻译: 一种判决反馈均衡器,其能够应付高传输速率并以不受抽头次数影响的速率操作。 第一和第二移位寄存器分别连接在第一和第二加法器之间,第二和第三加法器之间。 与最后一个抽头相关联的判定单元的输出由第三移位寄存器延迟一位,然后同时应用于乘法器。 每个与相应抽头相关联的乘法器分别将它们的输入乘以第一到第三抽头系数。 乘法器的结果输出应用于相关联的加法器。 加法器各自仅在与一位对应的时间段内执行单个加法。

    Scanning device
    20.
    发明授权
    Scanning device 失效
    扫描设备

    公开(公告)号:US06873429B2

    公开(公告)日:2005-03-29

    申请号:US09730004

    申请日:2000-12-06

    申请人: Hideki Matsuura

    发明人: Hideki Matsuura

    CPC分类号: G02B26/10

    摘要: The scanning device includes a reading unit for reading texts, a display unit for controlling an operation panel, a network controlling unit for controlling a network function connected to a local area network, a mail function unit, an HTTP function unit, and a device controlling unit. The mail function unit realizes a mail sending function by using the network controlling unit. The HTTP function unit, using an HTTP protocol, sends and receives such information as resolution for reading texts, paper size, encoding system, button names which are information for distinguishing the texts, and computer address information by using the network controlling unit. The device controlling unit controls the reading unit, the mail function unit, and the HTTP function unit and includes a data storage unit which stores information assigned by a computer and image files read by the reading unit.

    摘要翻译: 扫描装置包括用于读取文本的读取单元,用于控制操作面板的显示单元,用于控制连接到局域网的网络功能的网络控制单元,邮件功能单元,HTTP功能单元和控制设备 单元。 邮件功能单元通过网络控制单元实现邮件发送功能。 使用HTTP协议的HTTP功能单元通过使用网络控制单元发送和接收诸如用于读取文本的分辨率,纸张尺寸,编码系统,用于区分文本的信息的按钮名称以及计算机地址信息等信息。 设备控制单元控制读取单元,邮件功能单元和HTTP功能单元,并且包括存储由计算机分配的信息的数据存储单元和由读取单元读取的图像文件。