Digital filter with protection against overflow oscillation
    51.
    发明授权
    Digital filter with protection against overflow oscillation 失效
    数字滤波器,防止溢出振荡

    公开(公告)号:US06993545B2

    公开(公告)日:2006-01-31

    申请号:US09964081

    申请日:2001-09-25

    申请人: Mikio Shiraishi

    发明人: Mikio Shiraishi

    IPC分类号: G06F17/10

    CPC分类号: H03H17/0219

    摘要: A digital filter having the capability to completely prevent the digital filter from generating the overflow oscillation by detecting positive and negative overflow propagating one or a plurality of bits by means of an overflow detecting circuit. When overflow is detected, a clipping circuit serves to fix the output signal to a positive maximum value or a negative maximum value.

    摘要翻译: 一种数字滤波器,其具有通过检测通过溢出检测电路传播一个或多个位的正和负溢出来完全防止数字滤波器产生溢出振荡的能力。 当检测到溢出时,削波电路用于将输出信号固定为正的最大值或负的最大值。

    Image display mechanism and image display device
    52.
    发明申请
    Image display mechanism and image display device 有权
    图像显示机构和图像显示装置

    公开(公告)号:US20050046808A1

    公开(公告)日:2005-03-03

    申请号:US10960065

    申请日:2004-10-08

    CPC分类号: G03B21/26 G03B21/16 G03B21/28

    摘要: In order to prevent dust from sticking to the LCD panel, to prevent the LCD panel from being heated and to suitably adjust the position of the LCD panel, a duct is provided between cooling means for a light source and cooling means for a LCD panel to send cooling air from the LCD panel side to the light source side. Therefore, a light incidence/reflection plane of the LCD panel is disposed in an almost hermetically closed space and an optical path from an integrator lens to the LCD panel is formed in the almost hermetically closed space.

    摘要翻译: 为了防止灰尘粘附到LCD面板,为了防止LCD面板被加热并且适当地调整LCD面板的位置,在用于光源的冷却装置和用于LCD面板的冷却装置之间设置有管道 将冷却空气从LCD面板侧传送到光源侧。 因此,LCD面板的入射/反射面设置在几乎气密的空间中,并且在几乎密闭的空间中形成从积分透镜到LCD面板的光路。

    Image display device
    53.
    发明申请
    Image display device 有权
    图像显示装置

    公开(公告)号:US20050007558A1

    公开(公告)日:2005-01-13

    申请号:US10837400

    申请日:2004-04-30

    CPC分类号: G03B21/16

    摘要: A simple cooling construction capable of achieving two functions at a time is to be provided, one function being cooling a lamp as a lighting means and the other function being preventing the scatter of broken pieces of the lamp upon burst of the lamp. An image display device such as an LCD projector has been configured such that cooling air is introduced into the interior of a reflector to cool an lamp means. In this connection, the present invention adopts a net of an expanded metal structure which serves as both means for preventing the scatter of broken pieces of a lamp upon burst of the lamp and an air deflecting plate facing a portion to be cooled. The above two functions can be attained simultaneously by such a simple construction.

    摘要翻译: 提供能够一次实现两个功能的简单的冷却结构,一个功能是将灯作为照明装置进行冷却,另一个功能是防止在灯突然发生时灯的碎片的散射。 诸如LCD投影仪的图像显示装置已经被构造成使得冷却空气被引入反射器的内部以冷却灯装置。 在这一点上,本发明采用一种扩展金属结构的网,其作为两个装置,用于防止在灯的爆裂时灯的碎片散射,以及面向待冷却部分的空气偏转板。 上述两个功能可以通过这样简单的结构同时实现。

    Projection type image display apparatus
    54.
    发明申请
    Projection type image display apparatus 有权
    投影型图像显示装置

    公开(公告)号:US20050001998A1

    公开(公告)日:2005-01-06

    申请号:US10812425

    申请日:2004-03-30

    CPC分类号: H04N9/3141 H04N9/317

    摘要: Adjustment of the illumination range to a liquid crystal panel of a liquid crystal projector requires time in fixing upon adjustment and accordingly it is an object to make the adjustment effectively. In an adjustment mechanism of the illumination range of illumination means to the liquid crystal panel in an optical engine unit of the liquid projector, the spring property is provided in a lens holder for holding a lens and the lens is temporarily held by friction of the spring portion to the optical engine case after adjustment. Then, the adhesion processing is made to complete the adjustment.

    摘要翻译: 对液晶投影仪的液晶面板的照明范围的调整在调整时需要固定的时间,因此是有效地进行调整的对象。 在液晶投影仪的光学引擎单元中的照明装置的照明范围的调整机构中,弹簧性能设置在用于保持透镜的透镜保持器中,并且通过弹簧的摩擦暂时保持透镜 部分到调整后的光学引擎箱。 然后,进行粘合处理以完成调整。

    Liquid crystal display apparatus having liquid crystal display element immersed in cooling medium
    56.
    发明授权
    Liquid crystal display apparatus having liquid crystal display element immersed in cooling medium 有权
    具有浸没在冷却介质中的液晶显示元件的液晶显示装置

    公开(公告)号:US06535267B2

    公开(公告)日:2003-03-18

    申请号:US09886151

    申请日:2001-06-22

    IPC分类号: G02F11333

    摘要: For obtaining both high brightness under condition of small-sized and simplified structure and suppression of increase in temperature of liquid crystal display elements and polarizing elements, in a liquid crystal display apparatus, comprising: a liquid crystal display element 2 for converting light from a light source into display picture depending on a driving signal; an optical projection system 1b containing a first optical element 1a and for projecting said light signal toward an object of projection; exit side polarizing elements 3b; a holding member 6 for holding them with the liquid crystal display element 2; and cooling medium 5; incident side polarizing elements 3a, wherein, a space is defined by either one of the incident side polarizing elements 3a and the liquid crystal display element 2, the first optical element 1a, between the liquid crystal display element 2 and the first optical element 1a, and the holding member 6, and said space is filled up with the cooling medium 5.

    摘要翻译: 为了在液晶显示装置和液晶显示装置的液晶显示装置和液晶显示装置的温度升高的条件下获得高亮度,并且抑制液晶显示元件和偏振元件的温度升高,包括:液晶显示元件2,用于将来自光的光 根据驱动信号将其输入显示图像; 包含第一光学元件1a并用于将所述光信号投射到投影物体的光学投影系统1b; 出射侧偏振元件3b; 用于将其保持在液晶显示元件2上的保持构件6; 和冷却介质5; 入射侧偏振元件3a,其中,由液晶显示元件2和第一光学元件1a之间的入射侧偏振元件3a和液晶显示元件2中的任一个,第一光学元件1a, 和保持构件6,并且所述空间被冷却介质5填充。

    Disk cartridge and disk device using the same
    57.
    发明授权
    Disk cartridge and disk device using the same 失效
    磁盘盒和磁盘设备使用相同

    公开(公告)号:US5991260A

    公开(公告)日:1999-11-23

    申请号:US603162

    申请日:1996-02-20

    IPC分类号: G11B17/04 G11B23/03 G11B3/70

    摘要: A disk cartridge and a disk device for receiving the disk cartridge to enable recording and/or reproducing of information from or on a disk housed within the disk cartridge. The disk cartridge includes a disk in which information is recorded and/or reproduced, a case for housing the disk which case has opposite faces including a window in a respective face for exposing a part of the disk therethrough. A shutter is mounted with respect to the case so as to open or close a window of a respective face of the case with the shutter being movable in opposite directions with respect to the window from a position in which the window is closed to a position in which the window is open. The disk cartridge may include an openable part of the case for enabling the disk to be taken in and out of the case through the openable part thereof and a discrimination arrangement for enabling discrimination of different types of disk cartridges from one another. The disk cartridge may be arranged to enable exchange of disks of a same or different format including CD (compact disk), DVD (digital video disk) and PD (phase change disk) and the discrimination arrangement enables prevention of a disk cartridge of one different type from being erroneously inserted into a disk device receiving apparatus which is not compatible for the different type of disk cartridge.

    摘要翻译: 磁盘盒和磁盘装置,用于接收磁盘盒,以便能够从容纳在磁盘盒内的磁盘记录和/或再现信息。 磁盘盒包括其中记录和/或再现信息的盘,用于容纳盘的壳体具有相对面的壳体,包括在相应面中的窗口,用于使盘的一部分暴露在其中。 相对于壳体安装有快门,以便打开或关闭壳体的相应表面的窗口,其中快门可相对于窗口从相对于窗口的相反方向移动,从窗口关闭的位置到 窗户打开。 磁盘盒可以包括壳体的可打开部分,用于使盘能够通过其可打开部分进入和离开壳体,以及用于使得能够区分不同类型的盘盒的鉴别装置。 磁盘盒可被布置成能够交换包括CD(光盘),DVD(数字视频盘)和PD(相变盘)的相同或不同格式的盘,并且鉴别装置能够防止一个不同的盘盒 类型被错误地插入到与不同类型的盘盒不兼容的盘装置接收装置中。

    System for improving processing efficiency in a pipeline by delaying a
clock signal to a program counter and an instruction memory behind a
system clock
    58.
    发明授权
    System for improving processing efficiency in a pipeline by delaying a clock signal to a program counter and an instruction memory behind a system clock 失效
    用于通过将时钟信号延迟到程序计数器和系统时钟后面的指令存储器来提高流水线处理效率的系统

    公开(公告)号:US5978925A

    公开(公告)日:1999-11-02

    申请号:US979850

    申请日:1997-11-26

    CPC分类号: G06F9/30058 G06F9/3867

    摘要: In a pipelined processor, when a conditional branch is effected in accordance with a state of calculation generated by immediately previous instruction, it is necessary for a conventional technique to insert a NOP (no operation) instruction before a conditional branch instruction. This lowers the processing efficiency. In order to solve this problem, a delay circuit generates a clock signal .phi.' which is supplied to a program counter and an instruction memory. The clock signal .phi.' is delayed behind a system clock .phi.. This obviates the need to insert such a NOP instruction and the processing efficiency is improved.

    摘要翻译: 在流水线处理器中,当根据紧接在前的指令生成的计算状态来实现条件分支时,常规技术需要在条件分支指令之前插入NOP(无操作)指令。 这降低了处理效率。 为了解决这个问题,延迟电路产生提供给程序计数器和指令存储器的时钟信号phi'。 时钟信号phi'被延迟到系统时钟phi之后。 这样就省去了插入这样的NOP指令,提高了处理效率。

    Digital processing system for binary addition/subtraction
    59.
    发明授权
    Digital processing system for binary addition/subtraction 失效
    用于二进制加/减的数字处理系统

    公开(公告)号:US5905662A

    公开(公告)日:1999-05-18

    申请号:US927210

    申请日:1997-09-11

    申请人: Mikio Shiraishi

    发明人: Mikio Shiraishi

    CPC分类号: G06F7/505 G06F7/4991

    摘要: A digital processing system for binary addition/subtraction includes an adder for adding two binary data respectively expressed by two's complements to output the addition result, an overflow carry detector for outputting an overflow carry signal indicating an overflow carry of the addition result, an exclusive OR gate for outputting the sign bit of the addition result of the adder with or without inversion, and a register for storing the output from the exclusive OR gate.

    摘要翻译: 用于二进制加法/减法的数字处理系统包括一个加法器,用于将由两个补码分别表示的两个二进制数据相加以输出相加结果;溢出进位检测器,用于输出指示相加结果的溢出进位的溢出进位信号, 用于输出具有或不具有反相的加法器的相加结果的符号位的门,以及用于存储来自异或门的输出的寄存器。

    Clock recovery circuit and clock-recovering filter circuit
    60.
    发明授权
    Clock recovery circuit and clock-recovering filter circuit 有权
    时钟恢复电路和时钟恢复滤波电路

    公开(公告)号:US07359474B2

    公开(公告)日:2008-04-15

    申请号:US10912654

    申请日:2004-08-04

    申请人: Mikio Shiraishi

    发明人: Mikio Shiraishi

    IPC分类号: H03D3/24 H04N7/04

    摘要: There is provided a clock-recovering filter circuit for use in a clock recovery circuit that generates a recovery clock signal from input data from an external device and a reference clock signal. The filter circuit includes: a pulse-inserting circuit which inserts pulses in a first phase-advancing signal or a first phase-delaying signal, thereby generating a second phase-advancing signal or a second phase-delaying signal; and a frequency-offset detecting circuit which detects frequency-offset data from the second phase-advancing signal and the second phase-delaying signal, the frequency-offset data representing a frequency difference between the recovery clock signal and the reference clock signal. The pulse-inserting circuit inserts pulses in accordance with the frequency-offset data when the first phase-advancing signal or the first phase-delaying signal is not input.

    摘要翻译: 提供了一种用于时钟恢复电路的时钟恢复滤波器电路,其从外部设备的输入数据和参考时钟信号产生恢复时钟信号。 滤波器电路包括:脉冲插入电路,其在第一相位提前信号或第一相位延迟信号中插入脉冲,从而产生第二相位提前信号或第二相位延迟信号; 以及频率偏移检测电路,其检测来自第二相位推进信号和第二相位延迟信号的频率偏移数据,该频率偏移数据表示恢复时钟信号和参考时钟信号之间的频率差。 当不输入第一相位推进信号或第一相位延迟信号时,脉冲插入电路根据频率偏移数据插入脉冲。