Analog to digital conversion system utilizing dither
    1.
    发明授权
    Analog to digital conversion system utilizing dither 失效
    使用抖动的模数转换系统

    公开(公告)号:US4914439A

    公开(公告)日:1990-04-03

    申请号:US242366

    申请日:1988-09-09

    CPC分类号: H03M1/129 H03M1/0641

    摘要: A system suitable for digitizing an analog audio signal, with the addition of analog dither to the audio signal and, after the digitization of the resulting analog audio/dither signal, the subtraction of digital dither from the digital audio/dither signal. For the production of the analog and digital dither signals, a digital dither generator is employed which generates digital dither of, e.g., 16 bits. The analog dither signal is derived from this 16 bits dither by first translating the same into analog dither of equivalent magnitude and then by reducing its magnitude to a value equivalent to e.g., 10 bits. The digital dither signal, on the other hand, is provided by reducing the magnitude of the 16 bits digital dither to that of substantially 10 bits. The analog dither signal is added to the audio signal, and the resulting analog audio/dither signal is translated by an analog to digital converter of, e.g., 16 bits into a digital audio/dither signal. Then the substantially 10 bits digital dither signal is subtracted from the digital audio/dither signal. A limiter may be connected to the output of the subtracter for limiting the output level when the analog to digital converter is overloaded.

    摘要翻译: 适用于对模拟音频信号进行数字化的系统,其中对音频信号添加模拟抖动,并且在所得到的模拟音频/抖动信号的数字化之后,从数字音频/抖动信号中减去数字抖动。 为了产生模拟和数字抖动信号,采用了产生例如16位的数字抖动的数字抖动发生器。 通过首先将该模拟抖动信号转换为等效幅度的模拟抖动,然后通过将其幅度减小到等于例如10位的值,从该16位抖动中导出模拟抖动信号。 另一方面,数字抖动信号通过将16位数字抖动的大小减小到大致10位的数字抖动来提供。 将模拟抖动信号添加到音频信号中,并且所得到的模拟音频/抖动信号由例如16位的模数转换器转换为数字音频/抖动信号。 然后从数字音频/抖动信号中减去大致10位的数字抖动信号。 限制器可以连接到减法器的输出端,用于限制模数转换器过载时的输出电平。

    Hybrid type construction machine
    2.
    发明授权
    Hybrid type construction machine 有权
    混合式施工机

    公开(公告)号:US09151019B2

    公开(公告)日:2015-10-06

    申请号:US13395690

    申请日:2010-09-14

    摘要: A hybrid-type construction machine comprises an engine 11; an electric power accumulator 19B; first and second pumps 28, 14; a motor generator 27 for driving the first pump 28; and plural actuators 1A, 1B, 7, 8 and 9 which are driven by the first and second pumps 28, 14, wherein the first and second pumps 28, 14 are arranged such that the first pump 28 controls at least one of the actuators 1A, 1B, 7, 8 and 9 independently from the second pump 14 and the second pump 14 controls at least another one of the actuators 1A, 1B, 7, 8 and 9 independently from the first pump 28, the first pump 28 is electrically driven by the motor generator 27 with electric power from the electric power accumulator 19B, and the second pump 14 is directly coupled to the engine 11.

    摘要翻译: 混合式施工机械包括发动机11; 蓄电池19B; 第一和第二泵28,14; 用于驱动第一泵28的电动发电机27; 以及由第一和第二泵28,14驱动的多个致动器1A,1B,7,8和9,其中第一和第二泵28,14被布置成使得第一泵28控制至少一个致动器1A ,1B,7,8和9,独立于第二泵14,第二泵14独立于第一泵28控制致动器1A,1B,7,8和9中的至少另一个,第一泵28被电驱动 由电动发电机27通过来自蓄电器19B的电力,第二泵14与发动机11直接连接。

    LCD testing apparatus
    3.
    发明授权
    LCD testing apparatus 失效
    液晶检测仪

    公开(公告)号:US5801545A

    公开(公告)日:1998-09-01

    申请号:US679115

    申请日:1996-07-12

    IPC分类号: G02F1/13 G09G3/00 G01R31/00

    CPC分类号: G09G3/006 G02F1/1309

    摘要: An LCD assembly testing apparatus having a table for supporting the LCD assembly and for applying light to the back of the LCD assembly, and a transport mechanism for removing the LCD assembly from a cassette and transporting the LCD assembly onto the table. The transport mechanism has an arm for holding the LCD assembly, a first lift mechanism for vertical moving the arm, and a pre-alignment mechanism for receiving the LCD assembly and preliminary aligning the LCD assembly with the table. The pre-alignment mechanism has a plurality of support rollers for supporting the LCD assembly in a substantially horizontal position, four pairs of positioning rollers having axes intersecting at substantially right angles and located at level higher than the support rollers, for allowing the LCD assembly to fall naturally onto the support rollers and for holding corners of the LCD assembly, and a second lift mechanism for moving upwards the positioning rollers and the support rollers as the first lift mechanism moves the arm downwards.

    摘要翻译: 一种LCD组件测试装置,具有用于支撑LCD组件并用于将光施加到LCD组件的背面的工作台,以及用于将LCD组件从盒中移出并将LCD组件运送到工作台上的传送机构。 传送机构具有用于保持LCD组件的臂,用于垂直移动臂的第一提升机构,以及用于接收LCD组件和将LCD组件预先对准桌子的预对准机构。 预对准机构具有多个支撑辊,用于将LCD组件支撑在基本上水平的位置,四对定位辊具有以基本上直角相交且位于比支撑辊高的位置的轴线,以允许LCD组件 当LCD第一升降机构向下移动臂时,自然落在支撑辊上并用于保持LCD组件的角部的第二提升机构和用于向上移动定位辊和支撑辊的第二提升机构。

    Economical recording and reproducing apparatus which performs real-time
processing of digital audio data
    5.
    发明授权
    Economical recording and reproducing apparatus which performs real-time processing of digital audio data 失效
    执行数字音频数据的实时处理的经济的记录和再现装置

    公开(公告)号:US5566379A

    公开(公告)日:1996-10-15

    申请号:US459527

    申请日:1995-06-02

    摘要: An audio signal recording and reproducing apparatus can perform realtime processing with a structure having a low cost. The audio signal recording and reproducing apparatus records a series of input audio signals as digital audio data, and reproduces and outputs the input signals using the recorded digital audio data as output audio signals. An input audio signal processing unit converts the series of input audio signals into digital audio data. A data file recording unit records the digital audio data, as digital audio data file information, on a recording medium, the recording medium having a plurality of clusters in which data having a predetermined number of bytes is recorded, the digital audio file information being recorded over a plurality of clusters. A file management information recording unit records on the recording medium file management information representing the reproducing order of the clusters in which the digital audio data file information is recorded. A directory information recording unit records on the recording medium directory information including at least the number of the first cluster recorded first when the digital audio data is recorded. A reproduction procedure file information recording unit records on the recording medium the reproduction procedure file information including at least the number of the first cluster of a digital audio data file to be reproduced. An output audio signal processing unit converts digital audio data, which is read out from the recording medium in accordance with the reproduction procedure file information, into output audio signals.

    摘要翻译: 音频信号记录和再现装置可以以低成本的结构执行实时处理。 音频信号记录和再现装置将一系列输入音频信号记录为数字音频数据,并使用记录的数字音频数据作为输出音频信号再现和输出输入信号。 输入音频信号处理单元将一系列输入音频信号转换为数字音频数据。 数据文件记录单元将作为数字音频数据文件信息的数字音频数据作为数字音频数据文件信息记录在记录介质上,具有多个簇的记录介质,其中记录了具有预定字节数的数据,记录了数字音频文件信息 在多个簇上。 文件管理信息记录单元记录表示记录有数字音频数据文件信息的集群的再现顺序的文件管理信息。 目录信息记录单元在记录数字音频数据时记录至少包括首先记录的第一簇的数量的目录信息。 再现程序文件信息记录单元在记录介质上记录包括至少要再现的数字音频数据文件的第一簇的数量的再现过程文件信息。 输出音频信号处理单元将根据再现过程文件信息从记录介质读出的数字音频数据转换为输出音频信号。

    Catalysts for purifying exhaust and waste gases
    7.
    发明授权
    Catalysts for purifying exhaust and waste gases 失效
    用于净化废气和废气的催化剂

    公开(公告)号:US4018706A

    公开(公告)日:1977-04-19

    申请号:US707086

    申请日:1976-07-20

    摘要: A catalyst for purifying exhaust and waste gases comprisingA. a support substrate comprising 2 to 100% by weight of an oxide complex of titanium and phosphorus containing titanium and phosphrus in such a proportion that the molar ratio of TiO.sub.2 to P.sub.2 O.sub.5 is from 5.0 to 0.5 and 98 to 0% by weight of aluminum oxide, andB. supported on said substrate as a catalytic substance, 2 to 300 parts by weight, calculated as metal oxide per 100 parts by weight of the support substrate (A), of at least one heavy metal selected from the group consisting of Ni, Cu, Cr, Fe, Co, Mn, Bi, V, W, Mo, Sn, Zn, Zr, Pb, Sb, Ti, Ta, Cd and Nb, or 0.01 to 1.0 part by weight, calculated as metal per 100 parts by weight of the support substrate (A), of at least one noble metal selected from the group consisting of Pt, Pd, Rh, Ir, Os and Ru.

    摘要翻译: 一种用于净化废气和废气的催化剂,包括A.支撑基材,其包含2至100重量%的钛和磷的钛和磷的氧化物配合物,其中TiO 2与P 2 O 5的摩尔比为5.0至0.5 和98〜0重量%的氧化铝,负载在作为催化剂物质的基材上的B 2〜300重量份,作为金属氧化物,相对于100重量份的载体基材(A)计算为至少 选自Ni,Cu,Cr,Fe,Co,Mn,Bi,V,W,Mo,Sn,Zn,Zr,Pb,Sb,Ti,Ta,Cd和Nb中的一种重金属,或0.01〜 1.0重量份,以每100重量份载体基材(A)为金属计算的至少一种选自Pt,Pd,Rh,Ir,Os和Ru的贵金属。

    Method for the production of a platinum catalyst used for purification
of exhaust and waste gases
    8.
    发明授权
    Method for the production of a platinum catalyst used for purification of exhaust and waste gases 失效
    生产用于净化废气和废气的铂催化剂的方法

    公开(公告)号:US3953369A

    公开(公告)日:1976-04-27

    申请号:US457209

    申请日:1974-04-02

    摘要: A method for the production of a platinum catalyst used for purification of exhaust and waste gases which comprises supporting platinum either alone or in combination of other noble metals on to a porous inorganic refractory support using an aqueous medium containing dinitrodiammineplatinum and, optionally, other noble metals or their compounds in the presence of a poly(oxyethylene) type nonionic surface active agent of an average molecular weight of at least 500 and subjecting the so treated support to activation by calcining in an oxidative atmosphere or by reducing in a reductive atmosphere.

    摘要翻译: 一种生产用于净化废气和废气的铂催化剂的方法,其包括使用含有二硝基二氨基铂的水性介质和任选的其它贵金属将铂单独或组合使用其他贵金属组合在多孔无机耐火载体上 或其化合物在平均分子量至少为500的聚(氧乙烯)型非离子表面活性剂存在下进行处理,并使经处理的载体在氧化气氛中煅烧或通过在还原气氛中还原而进行活化。

    ELECTRONIC COMPONENT MOUNTING APPARATUS
    10.
    发明申请
    ELECTRONIC COMPONENT MOUNTING APPARATUS 有权
    电子元件安装设备

    公开(公告)号:US20100186223A1

    公开(公告)日:2010-07-29

    申请号:US12727349

    申请日:2010-03-19

    IPC分类号: H05K13/04

    摘要: The invention is directed to an unfailing pickup operation of an electronic component from a component storage portion at a seam of storage tapes connected even using a connection tape and prevention of reduction in a pickup rate of an electronic component. A CPU sends a feeding command to a component feeding unit to perform a component feeding operation or the like. Then, when the CPU judges that a connection tape reaches a pickup position, the CPU drives an X axis drive motor and a Y axis drive motor to move a board recognition camera to the pickup position of the feeding unit, the camera takes an image of a storage portion of a storage tape, and a recognition processing device performs recognition processing. A correction value based on a result of this recognition processing is stored in a RAM, and a suction nozzle is moved taking this correction value into account and lowers to pick up an electronic component.

    摘要翻译: 本发明涉及即使使用连接带连接的存储带的接缝处的部件存储部分中的电子部件的可靠的拾取操作,并且防止电子部件的拾取速率的降低。 CPU向组件供给单元发送进给命令以执行部件供给操作等。 然后,当CPU判断连接带到达拾取位置时,CPU驱动X轴驱动电动机和Y轴驱动电动机将板识别摄像机移动到馈送单元的拾取位置,摄像机拍摄图像 存储带的存储部分,以及识别处理装置执行识别处理。 将基于该识别处理的结果的校正值存储在RAM中,并且考虑到该校正值移动吸嘴并降低拾取电子部件。