公开(公告)号：US06339625B1

公开(公告)日：2002-01-15

申请号：US09288296

申请日：1999-04-08

申请人： Masafumi Tsuchiya

发明人： Masafumi Tsuchiya

IPC分类号： H04L700

CPC分类号： H04J3/0641 ,  H03L7/07 ,  H03L7/14 ,  H04L7/033

摘要： In a system in which active and standby units, each used to control a VCXO on the basis of a reference signal from a GPS receiver to generate a high-precision clock, constitute a redundant arrangement, and a clock is output from the active unit, a clock generating circuit has an arrangement in which when the active unit cannot receive any reference signal from the GPS receiver for some reason, free-running operation is performed in the control state the VCXO assumed when the reference signal stopped in the internal circuit of the active unit, and switching to the standby unit is not immediately performed, and an arrangement in which when the standby unit can normally receive the reference signal from the GPS, the output clock from the active unit during free-running operation is monitored, and the unit that is to receive the reference signal is switched from the active unit to the standby unit at the timing at which no influence is exerted on the output clock when a phase difference larger than a predetermined value is detected between the output clock and the reference signal from the GPS receiver of the standby unit, thereby preventing a clock exceeding the phase difference allowed in the system from being supplied to another circuit.

摘要翻译： 在这样的系统中，每个用于根据来自GPS接收器的参考信号来控制VCXO以产生高精度时钟的有源和待机单元构成冗余布置，并且从有源单元输出时钟， 时钟发生电路具有这样一种布置，其中当有源单元由于某种原因不能从GPS接收器接收到任何参考信号时，在控制状态下执行自由运行操作，当参考信号停止在 有效单元和切换到待机单元不被立即执行，并且当待机单元正常地从GPS接收到参考信号时，监视在自由运行操作期间来自有源单元的输出时钟，并且 在接收到参考信号的单元在相位差1a不影响输出时钟的定时从有源单元切换到待机单元 在来自待机单元的GPS接收器的输出时钟和参考信号之间检测到预定值，从而防止超出系统中允许的相位差的时钟被提供给另一个电路。

公开(公告)号：US5177544A

公开(公告)日：1993-01-05

申请号：US772882

申请日：1991-10-08

申请人： Shigeki Kimura ,  Masafumi Tsuchiya ,  Kenji Kobayashi ,  Kenzo Ito ,  Kenji Igarashi

发明人： Shigeki Kimura ,  Masafumi Tsuchiya ,  Kenji Kobayashi ,  Kenzo Ito ,  Kenji Igarashi

IPC分类号： B65H7/04 ,  G03G15/00

CPC分类号： G03G15/553 ,  B65H7/04 ,  B65H2511/152 ,  B65H2511/20 ,  B65H2511/512 ,  B65H2553/412

摘要： An image forming apparatus includes a paper stacking section for stacking a plurality of paper sheets cut to a given size. In the image forming apparatus, a paper supplying section supplies the paper sheets one by one, an image forming section forms an image which corresponds to received image information on the paper sheet supplied from the paper supplying section, a discharging paper stacking section stacks a paper sheet discharged out of the apparatus after the image is formed on the paper sheet by the image forming section, and a marking section is provided separate from the image forming section and adapted to continuously apply an "absence of paper" warning mark to the paper sheet remaining in the paper stacking section during a given period of time from a time at which a residual amount of paper sheets on the paper stacking section is lowered below a given level during the supply of paper sheets by the paper supplying section to a given time preceding a time at which the residual amount of paper sheets is all used up to cause the image forming opeation to be stopped. By so doing, the user of the apparatus is informed of a reduced residual amount of paper sheets over the given period of time.

摘要翻译： 图像形成装置包括用于堆叠多个切割成给定尺寸的纸张的纸张堆叠部分。 在图像形成装置中，纸张供给部逐张地供给纸张，图像形成部在从供纸部供给的纸张上形成与接收到的图像信息对应的图像，排纸处理部堆叠纸张 在通过图像形成部分在纸张上形成图像之后，纸张从设备中排出，并且标记部分与图像形成部分分开设置，并且适于连续地向纸张施加“没有纸张”警告标记 在给纸时间段内剩余的纸张堆积部分上的纸张从纸张供应部分提供到纸张供给部分之前的某一时刻降到低于给定水平的时间 剩余量的纸张全部用尽以致停止图像形成操作的时间。 通过这样做，通知设备的用户在给定的时间段内减少的纸张剩余量。