Method for the preparation of polyvinyl chloride resin
    41.
    发明授权
    Method for the preparation of polyvinyl chloride resin 失效
    聚氯乙烯树脂的制备方法

    公开(公告)号:US5286796A

    公开(公告)日:1994-02-15

    申请号:US936601

    申请日:1992-08-27

    CPC分类号: C08F14/06

    摘要: An improvement is proposed in the suspension polymerization of vinyl chloride monomer in order to obtain a polyvinyl chloride resin powder having good absorptivity of plasticizers by virtue of the well developed porosity of the resin particles and containing a decreased amount of fish eyes. The improvement comprises adding, to the polymerization mixture, a water-insoluble partially saponified polyvinyl acetate having an average degree of polymerization of at least 1000 and a degree of saponification of 20 to 60% in combination with a conventional water-soluble polymer as the suspending agent such as water-soluble partially saponified polyvinyl acetates and water-soluble cellulose ethers.

    摘要翻译: 在氯乙烯单体的悬浮聚合中,为了获得具有良好的增塑剂吸收性的聚氯乙烯树脂粉末,由于树脂颗粒的孔隙率良好并含有少量的鱼眼,提出了一种改进。 该改进包括向聚合混合物中加入具有至少1000的平均聚合度和皂化度为20至60%的不溶于水的部分皂化的聚乙酸乙烯酯与常规水溶性聚合物的混合作为悬浮剂 试剂如水溶性部分皂化聚乙酸乙烯酯和水溶性纤维素醚。

    Character recognition apparatus
    42.
    发明授权
    Character recognition apparatus 失效
    字符识别装置

    公开(公告)号:US4975974A

    公开(公告)日:1990-12-04

    申请号:US477167

    申请日:1990-02-08

    IPC分类号: G06K9/62 G06K9/68

    CPC分类号: G06K9/6807

    摘要: A character recognition apparatus, for use with an input character pattern and a dictionary of stored character patterns that are blocked into categories, all the patterns having a quantifiable format, in which a judging circuit performs a comparison of the patterns based on the quantifiable format and determines whether the quantified difference exceeds a threshold value in order to determine whether the input and stored character patterns match. The threshold is reduced, as lower mismatch quantities are found for a given character, and when a comparison exceeds the threshold, thereby indicating a mismatch, a new stored character is examined. As among all stored characters that have passed the threshold test, the one with the lowest mismatch quantity is selected as the recognized character.

    摘要翻译: 一种字符识别装置,用于输入字符图形和被分类的所存储字符模式的字典,所有模式都具有可量化格式,其中判断电路基于可量化格式和 确定量化差异是否超过阈值,以便确定输入和存储的字符模式是否匹配。 阈值减小,因为对于给定字符发现较低的不匹配量,并且当比较超过阈值时,由此指示不匹配,则检查新存储的字符。 在通过阈值测试的所有存储字符中,选择具有最低失配数量的字符作为识别的字符。

    Adjacent channel interference canceller with means for minimizing
intersymbol interference
    45.
    发明授权
    Adjacent channel interference canceller with means for minimizing intersymbol interference 失效
    相邻通道干扰消除器,用于最小化INTERMYMBOL干扰

    公开(公告)号:US5067137A

    公开(公告)日:1991-11-19

    申请号:US501901

    申请日:1990-03-30

    申请人: Ichiro Kaneko

    发明人: Ichiro Kaneko

    IPC分类号: H04L27/01

    CPC分类号: H04L27/01

    摘要: A device for use in processing a device input signal carrying a digital symbol sequence, a reception filter filters the device input signal and produces a filter output signal having a high order curvature distortion. The high order curvature distortion results in a predetermined frequency band from adjacent interference on the predetermined frequency band by other frequency bands adjacant to the predetermined frequency band. Responsive to the filter output signal, an adaptive amplitude equalizing unit equalizes the high order curvature distortion and produces as a first equalized signal. When the device input signal decreases, the adaptive amplitude equalizing unit overestimates the high order curvature distortion to produce intersymbol interference because of appropriately suppressing the other freqency bands by the reception filter. In order to resolve the problem, an adaptive transversal equalizing unit is connected to the adaptive amplitude equalizing unit and equalizes the intersymbol interference along a time axis of the first equalized signal to produce an output signal with the curvature distortion and the intersymbol interference suppressed.

    Iron dispersant for boiler water
    46.
    发明授权
    Iron dispersant for boiler water 失效
    锅炉水用铁分散剂

    公开(公告)号:US4877535A

    公开(公告)日:1989-10-31

    申请号:US237647

    申请日:1988-08-26

    CPC分类号: C02F5/12

    摘要: A composition and method for effectively dispersing iron in water to prevent iron oxide deposits is disclosed. The composition includes a first component which is an acrylic copolymer having repeating units mixed with a second component which is either a homopolymer or copolymer of an acrylate or a methacrylate. The first component includes an acrylic or methacrylic hydrazide and its repeating units include an acrylic or methacrylic amide or alkyl ester. Iron containing water may be treated by adding 0.01-10 mg composition to each liter of water.

    摘要翻译: 公开了一种有效地将铁分散在水中以防止氧化铁沉积物的组合物和方法。 该组合物包括第一组分,其是具有与作为丙烯酸酯或甲基丙烯酸酯的均聚物或共聚物的第二组分混合的重复单元的丙烯酸共聚物。 第一组分包括丙烯酸或甲基丙烯酰肼,其重复单元包括丙烯酸或甲基丙烯酰胺或烷基酯。 含铁水可以通过向每升水中加入0.01-10毫克的组合物来处理。

    Base station system
    47.
    发明授权
    Base station system 有权
    基站系统

    公开(公告)号:US09439241B2

    公开(公告)日:2016-09-06

    申请号:US14377571

    申请日:2013-01-31

    摘要: A base station system includes a base station device (1), a wireless transmission device (2) and a data transfer device (3), each of which can be installed outdoors. Enclosures (12, 22 and 32) of the devices (1-3) each provide a degree of protection from water and dust ingress necessary for being installed outdoors. The enclosure (12) of the base station device (1) accommodates electronic equipment (11) functioning as a base station. The enclosure (22) of the wireless transmission device (2) accommodates electronic equipment (21) functioning as a radio station to perform wireless transmission with the other device for connecting the base station device (1) to a mobile backhaul network. The enclosure (32) of the data transfer device (3) accommodates electronic equipment (31) functioning as a router or a switch to transfer data packets or data flames between the base station device (1) and the wireless transmission device (2). This eliminates the need for construction of a building/shelter to install the base station system.

    摘要翻译: 基站系统包括基站装置(1),无线传输装置(2)和数据传输装置(3),每个都可以安装在户外。 设备(1-3)的外壳(12,22和32)各自提供一定程度的保护,防止水和尘埃进入,以便安装在户外。 基站装置(1)的外壳(12)容纳用作基站的电子设备(11)。 无线传输设备(2)的机壳(22)容纳用作无线电台的电子设备(21),以与用于将基站设备(1)连接到移动回程网络的另一设备进行无线传输。 数据传输装置(3)的外壳(32)容纳用作路由器或交换机的电子设备(31),以在基站设备(1)和无线传输设备(2)之间传送数据分组或数据火焰。 这样就无需建造安装基站系统的建筑物/避难所。

    Phase shift mask blank, phase shift mask and method of manufacture
    48.
    发明授权
    Phase shift mask blank, phase shift mask and method of manufacture 有权
    相移掩模空白,相移掩模和制造方法

    公开(公告)号:US06511778B2

    公开(公告)日:2003-01-28

    申请号:US09753517

    申请日:2001-01-04

    IPC分类号: G03F900

    CPC分类号: G03F1/32 G03F1/26

    摘要: A phase shift mask blank comprising a transparent substrate and at least one layer of a phase shifter thereon, wherein the phase shifter is a film composed primarily of a fluorine-doped metal silicide, can be fabricated into a high-performance phase shift mask having adequate transmittance and good stability over time even when used with light sources that emit short-wavelength light. The phase shift mask can be used to fabricate semiconductor integrated circuits to a smaller minimum feature size and a higher level of integration.

    摘要翻译: 一种相移掩模坯料,其包括透明基板和至少一层其上的移相器,其中移相器是主要由掺氟金属硅化物构成的膜,可以被制成具有足够的高性能相移掩模 即使在与发出短波长光的光源一起使用时,透射率和稳定性也很好。 相移掩模可用于将半导体集成电路制造成更小的最小特征尺寸和更高的集成度。

    Transversal filter capable of processing an input signal high data rate
    49.
    发明授权
    Transversal filter capable of processing an input signal high data rate 失效
    横向滤波器能够处理输入信号的高数据速率

    公开(公告)号:US5793806A

    公开(公告)日:1998-08-11

    申请号:US576842

    申请日:1995-12-21

    CPC分类号: H03H17/06

    摘要: In a transversal filter for filtering an input signal (IN) into an output signal (OUT) in response to first through third tap gains (C.sub.-1, C.sub.0, C.sub.1), the transversal filter comprises a serial-parallel converter (40) for converting the input signal into first and second parallel converted signals. Connected to the serial-parallel converter, a delay circuit (10) has first through fourth taps (11-14) and comprises a plurality of delay units (16, 17) each of which is connected between two taps selected from the first through the fourth taps. Each of the delay units provides twice a unit delay which is substantially equal to a reciprocal of an input data rate of the input signal. The first through the fourth taps of the delay circuit produce first through fourth tap signals, respectively. First and second calculation circuits (31, 32) carry out a calculation operation on three tap signals selected from the first through the fourth tap signals using the first through the third tap gains to produce first and second calculation result signals, respectively. Connected to the first and the second calculation circuits, a parallel-serial converter (35) couples the first and the second calculation result signals to produce the output signal.

    摘要翻译: 在用于响应于第一至第三抽头增益(C-1,C0,C1)将输入信号(IN)滤波成输出信号(OUT)的横向滤波器中,横向滤波器包括串并联转换器(40),用于 将输入信号转换成第一和第二并行转换信号。 延迟电路(10)连接到串并转换器,具有第一至第四抽头(11-14),并且包括多个延迟单元(16,17),每个延迟单元连接在从第一至第四抽头 第四个水龙头。 每个延迟单元提供两倍的单位延迟,其基本上等于输入信号的输入数据速率的倒数。 延迟电路的第一至第四抽头分别产生第一至第四抽头信号。 第一和第二计算电路(31,32)使用第一至第三抽头增益对从第一至第四抽头信号中选择的三个抽头信号执行计算操作,以分别产生第一和第二计算结果信号。 连接到第一和第二计算电路,并行串行转换器(35)耦合第一和第二计算结果信号以产生输出信号。

    Method of preventing polymer scale deposition
    50.
    发明授权
    Method of preventing polymer scale deposition 失效
    防止聚合物沉降沉积的方法

    公开(公告)号:US5098968A

    公开(公告)日:1992-03-24

    申请号:US517174

    申请日:1990-05-01

    IPC分类号: C08F2/00 C08F2/04

    CPC分类号: C08F2/004

    摘要: A method of preventing polymer scale deposition in a polymerization vessel during polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a polymerization vessel of which the inner wall has a coating comprising a reaction product of a tannin and an acid halide. Polymer scale deposition on the inner wall, etc. of the polymerization vessel can be effectively prevented. The preventive agent used has neither risk of produced polymer being colored nor toxicity.