Digital signal detection circuit
    1.
    发明授权
    Digital signal detection circuit 失效
    数字信号检测电路

    公开(公告)号:US5661709A

    公开(公告)日:1997-08-26

    申请号:US689130

    申请日:1996-07-30

    CPC分类号: G11B20/10009 G11B7/005

    摘要: A digital signal detection circuit includes a threshold value calculator calculating a threshold value from assumptive sampled values corresponding to various data patterns of a regenerated signal. The regenerated signal is obtained by regenerating data recorded on a recording medium by a regenerating head. The detection circuit also includes a Viterbi decoder carrying out Viterbi decoding of the regenerated signal with the threshold value determined by the threshold value calculator as a constant. The threshold value calculator variably controls the threshold value using a decoded output of the Viterbi decoder and a regenerated signal corresponding to the decoded output of the Viterbi decoder.

    摘要翻译: 数字信号检测电路包括阈值计算器,从对应于再生信号的各种数据模式的假设采样值计算阈值。 再生信号通过再生由再生头重新记录在记录介质上的数据而获得。 该检测电路还包括一个维特比解码器,其将由该阈值计算器确定的阈值的再生信号进行维特比译码,作为常数。 阈值计算器使用维特比解码器的解码输出和对应于维特比解码器的解码输出的再生信号来可变地控制阈值。

    Data transmission apparatus and data reception apparatus
    4.
    发明授权
    Data transmission apparatus and data reception apparatus 有权
    数据发送装置和数据接收装置

    公开(公告)号:US06504919B1

    公开(公告)日:2003-01-07

    申请号:US09262335

    申请日:1999-03-04

    IPC分类号: H04M1100

    摘要: The data transmission apparatus comprises a memory to store control information of a modem at each destination address, and a communication control section for issuing a short procedure shift notification signal to execute the short communication procedure when the control information is stored at the memory, and issuing an ordinary communication initiation signal to execute the ordinary communication procedure when the control information is not stored at the memory.

    摘要翻译: 数据发送装置包括存储器,用于存储每个目的地地址处的调制解调器的控制信息;以及通信控制部分,用于当控制信息存储在存储器时发出短程序移位通知信号以执行短通信程序,并且发出 当控制信息未被存储在存储器时,执行普通通信过程的普通通信启动信号。

    Modem apparatus and data communication method
    5.
    发明授权
    Modem apparatus and data communication method 有权
    调制解调器和数据通信方式

    公开(公告)号:US06314170B1

    公开(公告)日:2001-11-06

    申请号:US09262334

    申请日:1999-03-04

    IPC分类号: H04M1100

    CPC分类号: H04M11/06

    摘要: A modem parameter required for a modem apparatus is stored in a memory for each telephone number of a communication destination in advance based on past communications. At a communication time, a receiver side is notified of an execution of the short protocol by a QTSD signal, and sequentially a QINFO signal that includes the modem parameter is transmitted. Since the modem parameter is received by the communication destination, the pre-protocols such as exchange of parameter, etc., are shortened so that communication time can be shortened. Moreover, since the transmission of modem parameter is repeated until it is confirmed that the communication destination receives the modem parameter, occurrence of communication errors can be avoided so that the shortened pre-protocols can be surely executed.

    摘要翻译: 基于过去的通信,调制解调器装置所需的调制解调器参数被预先存储在通信目的地的每个电话号码的存储器中。 在通信时间,通过QTSD信号向接收方通知短协议的执行,并且顺序发送包括调制解调器参数的QINFO信号。由于通信目的地接收到调制解调器参数,所以预协议 缩短参数交换等,缩短通信时间。 此外,由于重复调制解调器参数的传输,直到确认通信目的地接收到调制解调器参数为止,可以避免发生通信错误,从而可以可靠地执行缩短的预协议。

    Bookbinding apparatus
    7.
    发明授权

    公开(公告)号:US09616698B2

    公开(公告)日:2017-04-11

    申请号:US14264667

    申请日:2014-04-29

    IPC分类号: B42C9/00

    摘要: A bookbinding apparatus includes an application roller that applies glue onto a back edge face of a sheet bundle and a bookbinding control unit that positions the application roller onto the back edge face and causes the roller to execute glue application. The bookbinding apparatus applies a required amount of glue determined by a sheet bundle thickness by, after applying side glues to both side surfaces of the sheet bundle, bringing the application roller in contact with a first position within a central region on the back edge face and rotating the roller in a forward direction, bringing the application roller in contact with a second position between the first position and a right side of the sheet bundle, and rotating the roller in the forward direction. The glue is leveled to form a flat layer of adhesive with an adequate thickness.

    Dustproof structure for an electronic equipment
    8.
    发明授权
    Dustproof structure for an electronic equipment 失效
    电子设备防尘结构

    公开(公告)号:US07297886B2

    公开(公告)日:2007-11-20

    申请号:US11298521

    申请日:2005-12-12

    IPC分类号: H01H1/64

    CPC分类号: H01H9/04

    摘要: A dustproof structure for an electronic equipment includes internal switches disposed in a housing forming an external frame of the electronic equipment and an opening for use in operating the internal switches. The dustproof structure further includes a shutter plate for opening or closing the opening; and a cover plate for supporting the shutter plate, the shutter plate being freely slidable between the cover plate and the housing. A slide recess serving as a sliding area of the shutter plate is formed in the housing or the cover plate.

    摘要翻译: 用于电子设备的防尘结构包括设置在形成电子设备的外框的壳体中的内部开关和用于操作内部开关的开口。 防尘结构还包括用于打开或关闭开口的挡板; 以及用于支撑所述挡板的盖板,所述挡板可在所述盖板和所述壳体之间自由滑动。 作为挡板的滑动区域的滑动凹部形成在壳体或盖板中。

    Rotary stencil printer having gear train for synchronizing inner press
roller with printing drum and including clutch for press bias control
    9.
    发明授权
    Rotary stencil printer having gear train for synchronizing inner press roller with printing drum and including clutch for press bias control 失效
    旋转模版印刷机具有用于使内压辊与印版滚筒同步的齿轮系,并包括用于压偏偏压控制的离合器

    公开(公告)号:US5603260A

    公开(公告)日:1997-02-18

    申请号:US567164

    申请日:1995-12-05

    CPC分类号: B41L13/04

    摘要: The rotation of the inner press roller 16 is synchronized with the rotation of the printing drum 10 by the gear train including a gear wheel 22 coaxial with the printing drum, a gear wheel 24 meshing with the gear wheel 22 and rotatably supported by an arm 26 swingable about the central axis of the printing drum, and a gear wheel 28 meshing with the gear wheel 24 and coaxially connected with the inner press roller 16 to rotate therewith and rotatably supported by an arm 18 swingable about a pivot axis Ob parallel with and distant from the central axis Oa of the printing drum. A clutch 86 is provided to apply a torque from the printing drum when driven to the arm 26 to control the biasing out operation of the inner press roller 12 against the circumferential wall 12 of the printing drum. The clutch may be replaced by the linear actuator 96. The clutch or linear actuator may be temporarily actuated stronger during a starting up of the printing operation. The distance between the axes of the gear wheels 24 and 28 may desirably be restricted not to increase beyond a predetermined distance.

    摘要翻译: 内压辊16的旋转与印刷鼓10的旋转同步,齿轮系包括与印刷鼓同轴的齿轮22,与齿轮22啮合并由臂26可旋转地支撑的齿轮24 可绕着印刷鼓的中心轴线摆动,齿轮28与齿轮24啮合并与内压辊16同轴连接,以便与其一起旋转并由臂18可旋转地支撑,该臂18围绕平行于和远离的枢转轴线 从印刷鼓的中心轴线Oa。 离合器86设置成当被驱动到臂26时施加来自印刷鼓的转矩,以控制内压辊12抵靠印版滚筒的周壁12的偏压操作。 离合器可以由线性致动器96代替。离合器或线性致动器可以在打印操作的启动期间被暂时地致动。 齿轮24和28的轴线之间的距离可以期望地被限制为不增加超过预定距离。

    Track jumping control apparatus
    10.
    发明授权
    Track jumping control apparatus 失效
    轨道跳跃控制装置

    公开(公告)号:US5216650A

    公开(公告)日:1993-06-01

    申请号:US718675

    申请日:1991-06-21

    申请人: Yoshihiro Noguchi

    发明人: Yoshihiro Noguchi

    IPC分类号: G11B7/085

    CPC分类号: G11B7/08541

    摘要: Clock pulses are generated at a frequency having a fixed relation with a rotation of an information recording disk formed with a track. The clock pulses are counted. A first kick pulse is generated when the counting of the clock pulses starts. A tracking error signal is generated. A detection is made as to whether the tracking error signal crosses a zero level after the first kick pulse is generated. A brake pulse is generated when the tracking error signal crosses the zero level. A second kick pulse is generated when a number of the counted clock pulses reaches a predetermined number.

    摘要翻译: 以与形成有轨道的信息记录盘的旋转具有固定关系的频率产生时钟脉冲。 时钟脉冲被计数。 当时钟脉冲的计数开始时,产生第一个脉冲。 产生跟踪误差信号。 在产生第一个反冲脉冲之后,检测跟踪误差信号是否超过零电平。 当跟踪误差信号越过零电平时,产生制动脉冲。 当多个计数的时钟脉冲达到预定数量时,产生第二反冲脉冲。