Stamper for producing optical recording medium, optical recording medium, and methods of producing the same
    82.
    发明申请
    Stamper for producing optical recording medium, optical recording medium, and methods of producing the same 审中-公开
    用于制造光学记录介质的压模,光学记录介质及其制造方法

    公开(公告)号:US20050219992A1

    公开(公告)日:2005-10-06

    申请号:US11090818

    申请日:2005-03-25

    摘要: A stamper suppressed in surface roughness, uneven thickness, and deviation of circularity in inner circumference, a method of producing the same, an optical recording medium produced by molding using the stamper, and a method of producing the same, wherein a base member having a mirror polished main surface and comprising silicon or glass is formed with a resist film; the resist film is exposed by a focused electron beam, an ultraviolet ray laser, etc. and developed so as to form a resist film of a pattern corresponding to relief shapes; the mirror surface of the base member is processed to relief shapes (projecting regions and recessed regions) by dry etching etc. using the obtained resist film as a mask so as to obtain a stamper; the obtained stamper is used for injection molding to form a medium substrate; and an optical recording multilayer film and a protective layer are formed to thereby produce an optical recording medium.

    摘要翻译: 抑制表面粗糙度,不均匀厚度和内周圆度的偏差的压模,其制造方法,使用该压模成型的光记录介质及其制造方法,其中,具有 镜面抛光的主表面并且包括硅或玻璃形成有抗蚀剂膜; 抗蚀剂膜通过聚焦电子束,紫外线激光等曝光,并显影以形成对应于浮雕形状的图案的抗蚀剂膜; 使用得到的抗蚀剂膜作为掩模,通过干蚀刻等将基底构件的镜面加工成凹凸形状(突出区域和凹陷区域),以获得压模; 所得压模用于注射成型以形成介质基板; 并且形成光记录多层膜和保护层,从而产生光记录介质。

    Fractional-N frequency synthesizer and method of operating the same

    公开(公告)号:US06670854B2

    公开(公告)日:2003-12-30

    申请号:US10192796

    申请日:2002-07-10

    IPC分类号: H03L700

    摘要: A fractional-N frequency synthesizer is offered which does not produce spurious signals of periodically conspicuous spectral intensities and can cancel produced spurious signals up to a practical level even with a spurious-canceling circuit of low accuracy. The synthesizer has a sigma-delta noise shaper. The integral and fractional parts of a frequency divide ratio-setting value that frequency-divides the output signal are set. The fractional part of the frequency divide ratio-setting value is applied to the sigma-delta noise shaper every phase comparison period. The output from the noise shaper and the integral part of the frequency divide ratio-setting value are summed up to thereby produce a sum. The output signal is frequency-divided, using this sum as a frequency divide ratio. The difference between the fractional part of the frequency divide ratio-setting value and the output from the sigma-delta noise shaper is produced and accumulated in an accumulator every phase comparison period. The spurious-canceling value is produced based on the value of the accumulator.

    Laser processing device
    84.
    发明授权
    Laser processing device 失效
    激光加工装置

    公开(公告)号:US5689327A

    公开(公告)日:1997-11-18

    申请号:US520703

    申请日:1995-08-29

    申请人: Minoru Takeda

    发明人: Minoru Takeda

    CPC分类号: B23K26/16

    摘要: A laser processing device for collecting a laser beam from laser beam radiating means using an objective lens and irradiating a surface of a sample with the collected laser beam to form a fine pattern thereon is disclosed. The device comprises a uniform pellicle film having high transmittance to wavelength of the laser beam and provided between the objective lens and the surface of the sample. The laser beam radiated from the laser beam radiating means passes through a shutter and a beam expander, and is reflected by a dichroic mirror. The laser beam is then collected by the objective lens and passes through the pellicle film to be radiated on the surface of the sample. Thus, laser processing may be carried out without deteriorating performance of the objective lens.

    摘要翻译: 公开了一种激光加工装置,用于使用物镜从激光束辐射装置收集激光束并用收集的激光束照射样品的表面以在其上形成精细图案。 该装置包括具有对激光束的波长具有高透射率并且设置在物镜和样品表面之间的均匀防护薄膜。 从激光束辐射装置照射的激光束通过快门和光束扩展器,并被二向色镜反射。 然后由物镜收集激光束,并通过防护薄膜以将其照射在样品的表面上。 因此,可以在不劣化物镜的性能的情况下进行激光加工。

    Serial-to-parallel multiplier
    85.
    发明授权
    Serial-to-parallel multiplier 失效
    串行到并行乘法器

    公开(公告)号:US5528531A

    公开(公告)日:1996-06-18

    申请号:US282190

    申请日:1994-07-28

    IPC分类号: G06F7/527 G06F7/52

    CPC分类号: G06F7/5275

    摘要: A serial-to-parallel type multiplier capable of performing a highspeed calculation with high precision includes a selection circuit provided in a unit calculation block, an output of this selection circuit being input into an adder, and the selection circuit selectively outputs either a logic product between a multiplier bit to be input into this unit calculation block and a multiplicand bit input into this unit calculation block within one unit time period or a logic product between a multiplier bit to be input into this unit calculation block and a multiplicand bit input into this unit calculation block within a unit time period prior to the above-described one unit time period.

    摘要翻译: 能够以高精度执行高速计算的串并行型乘法器包括设置在单位计算块中的选择电路,该选择电路的输出被输入到加法器中,并且选择电路选择性地输出逻辑积 在要输入到该单位计算块的乘法器位和在一个单位时间内输入到该单位计算块中的乘法位或在该单位计算块中输入的乘法器位之间的逻辑乘积以及输入到该单位计算块中的乘法位 在上述一个单位时间段之前的单位时间段内的单位计算块。

    Resistor array circuit device and variable gain device utilizing same
    86.
    发明授权
    Resistor array circuit device and variable gain device utilizing same 失效
    电阻阵列电路器件和利用其的可变增益器件

    公开(公告)号:US5523712A

    公开(公告)日:1996-06-04

    申请号:US399310

    申请日:1995-03-06

    CPC分类号: H03G1/0088 H03G3/001

    摘要: To provide a resistor array circuit device and variable gain device which make possible precise setting of attenuation factors and the like as well as prevention of generation of gridge noise, a resistor array circuit device has resistors R1.sub.1 to R1.sub.n-1, each with a resistance value R, resistors R2.sub.1 to R2.sub.n, each with a resistance value aR, resistor R3 having a resistance value (l+b)R, switches SW.sub.1 to SW.sub.n for switching connection of resistors R2.sub.1 to R2.sub.n to a terminal T3 or a terminal T4, and a control circuit for controlling switches SW.sub.1 to SW.sub.n so that resistors R2.sub.1 to R2.sub.m-1 on a terminal T1 side of an arbitrary resistor R2.sub.m are connected to terminal T4 and resistors R2.sub.m to R2.sub.n on a terminal T2 side of resistor R2.sub.m are connected to terminal T3, the values of the a and b being determined based on b={-1+(1+4a).sup.1/2 }/2 and 1/2

    摘要翻译: 为了提供可以精确设定衰减因子等的电阻阵列电路装置和可变增益装置,并且防止产生格栅噪声,电阻阵列电路装置具有电阻器R11至R1n-1,每个电阻值具有电阻值 R,具有电阻值aR的电阻器R21〜R2n,具有电阻值(1 + b)R的电阻器R3,将用于将电阻器R21〜R2n的连接切换到端子T3或端子T4的SW1〜SWn,以及 用于控制开关SW1至SWn的控制电路,使得任意电阻器R2m的端子T1侧上的电阻器R21至R2m-1连接到端子T4,并且电阻器R2m的端子T2侧上的电阻器R2m至R2n连接到端子T3, 基于b = { - 1+(1 + 4a)1/2} / 2和1/2

    Scanning velocity modulation system
    87.
    发明授权
    Scanning velocity modulation system 失效
    扫描速度调制系统

    公开(公告)号:US4185301A

    公开(公告)日:1980-01-22

    申请号:US910872

    申请日:1978-05-30

    IPC分类号: H04N3/32 H04N5/68

    CPC分类号: H04N3/32

    摘要: A system for compensating image contour by modulating a scanning velocity in accordance with a video signal is disclosed, in which a mean current dissipated in a driving power amplifier is detected to control a gain of an amplifier in a preceding stage for suppressing the increase of power dissipation in the power amplifier when a video signal having many noises is received. The preceding stage amplifier is provided with a saturation characteristic to enhance the effect of contour compensation at a small amplitude signal and eliminate over compensation of image contour at a large amplitude signal. The combination of the saturation characteristic and the gain control further enhances the effect of suppression of power dissipation.

    摘要翻译: 公开了一种通过根据视频信号调制扫描速度来补偿图像轮廓的系统,其中检测到在驱动功率放大器中消耗的平均电流以控制前级中的放大器的增益,以抑制功率的增加 当接收到具有许多噪声的视频信号时,功率放大器中的耗散。 前级放大器具有饱和特性,以增强在小振幅信号下轮廓补偿的影响,并消除大幅度信号对图像轮廓的过度补偿。 饱和特性和增益控制的组合进一步增强了功耗的抑制效果。