Data recording/reproducing apparatus employing read-after-write system
    2.
    发明授权
    Data recording/reproducing apparatus employing read-after-write system 失效
    采用写后系统的数据记录/再现装置

    公开(公告)号:US6141164A

    公开(公告)日:2000-10-31

    申请号:US671330

    申请日:1996-06-27

    摘要: A recording apparatus provided on, for example, a digital audio tape recorder or on a data storage device for correctly and reliably recording data. An ECC unit 23 appends the parity for error correction to recording data and transmits the resulting data to recording heads Hw1, Hw2, while recording the parity in a RAM 61. The recording data and the parity are reproduced from a magnetic tape 32 by magnetic heads Hr1, Hr2 and supplied to a subcode separation unit 45. A syndrome detection unit 62 detects the number of error corrections performed by parity by an error correction unit 46. A system controller 63 compares the number of times of error corrections to a threshold value and compares the parity read out from the RAM 61 to the parity from the sub-code separation unit 45 in order to detect if the recording data has been recorded correctly. If the recording data has not been recorded correctly, the system controller controls a recording/reproducing unit 30 for re-recording the same recording data.

    摘要翻译: 一种设置在数字音频磁带录像机或数据存储装置上的用于正确和可靠地记录数据的记录装置。 ECC单元23将用于纠错的奇偶校验附加到记录数据,并将结果数据发送到记录头Hw1,Hw2,同时将奇偶校验记录在RAM 61中。记录数据和奇偶校验由磁头32通过磁头 Hr1,Hr2并提供给子代码分离单元45.错误检测单元62通过纠错单元46检测由奇偶校验执行的错误校正的数量。系统控制器63将误差校正的次数与阈值和 将从RAM 61读出的奇偶校验与来自子代码分离单元45的奇偶校验进行比较,以便检测记录数据是否已被正确记录。 如果记录数据没有被正确地记录,则系统控制器控制用于重新记录相同记录数据的记录/再现单元30。

    Poly 4-Methyl-1-Pentene Resin Composition, Film and Mold for Production of Sealed Electronic Element Product
    3.
    发明申请
    Poly 4-Methyl-1-Pentene Resin Composition, Film and Mold for Production of Sealed Electronic Element Product 审中-公开
    聚4-甲基-1-戊烯树脂组合物,用于生产密封电子元件产品的膜和模具

    公开(公告)号:US20080315066A1

    公开(公告)日:2008-12-25

    申请号:US11658992

    申请日:2005-07-28

    IPC分类号: B28B7/34 C08F10/14 C08L23/00

    摘要: A poly 4-methyl-1-pentene resin composition which includes a polymer containing 80% by mass or more of 4-methyl-1-pentene in which the resin composition has a melting point of 170 to 240° C. and a semicrystallization time of 70 to 220 seconds. Also provided are a release film having good releasibility, a mold for production of a sealed electronic element product having excellent heat resistance and releasibility and an LED mold, which are obtained by molding the resin composition.

    摘要翻译: 聚4-甲基-1-戊烯树脂组合物,其包含含有80质量%以上的4-甲基-1-戊烯的聚合物,其中树脂组合物的熔点为170〜240℃,半结晶时间 70到220秒。 还提供了具有良好剥离性的脱模膜,用于生产具有优异的耐热性和可剥离性的密封电子元件产品的模具和通过模制树脂组合物而获得的LED模具。

    Resin Composition And Use Thereof
    4.
    发明申请
    Resin Composition And Use Thereof 审中-公开
    树脂组合物及其用途

    公开(公告)号:US20080304393A1

    公开(公告)日:2008-12-11

    申请号:US11631950

    申请日:2005-07-01

    IPC分类号: G11B7/00 C08K5/3435

    摘要: Provided is a resin composition suitable for an optical element in which the moldability, thermal resistance, mechanical strength, and low birefringence are not impaired, the deterioration is hardly generated although the laser light nearby the UV is used, change in the optical properties during the use are extremely small, particularly the light transmittance is maintained high, and a foreign substance is hardly deposited on a surface of the molded product such as an optical element, also provided is an optical element obtained by molding the resin composition, and an optical pickup device using the optical element. The thermoplastic resin composition contains the polymer having a specific structure and two kinds of specific optical stabilizers in a specific mass ratio among a hindered amine light stabilizer having the molecular weight of 400 to 5,000; the optical element is obtained by molding the thermoplastic resin composition; and the optical pickup device includes the optical element.

    摘要翻译: 本发明提供一种适用于不损害成型性,耐热性,机械强度,低双折射性的光学元件的树脂组合物,尽管使用了UV附近的激光,但几乎不发生劣化, 使用非常小,特别是透光率保持较高,并且异物难以沉积在诸如光学元件的成型产品的表面上,还提供了通过模制树脂组合物获得的光学元件和光学拾取器 装置使用光学元件。 热塑性树脂组合物含有具有特定结构的聚合物和两种具有分子量为400至5,000的受阻胺光稳定剂之间的比质量比的特定光学稳定剂; 光学元件通过模制热塑性树脂组合物而获得; 并且光学拾取装置包括光学元件。

    Method for producing resin composition
    6.
    发明申请
    Method for producing resin composition 有权
    树脂组合物的制造方法

    公开(公告)号:US20070155903A1

    公开(公告)日:2007-07-05

    申请号:US11660307

    申请日:2005-08-29

    IPC分类号: C08F8/00

    摘要: Provided is a method for producing a resin composition by melt-kneading a cyclic olefin polymer (A) having a glass transition temperature of from 60 to 200° C. and a flexible polymer (B) having a glass transition temperature of 0° C. or lower, wherein a part of the cyclic olefin polymer (A) is previously melt-kneaded with the flexible polymer (B) and a radical initiator (C) and then the remaining cyclic olefin polymer (A) is added thereto and melt-kneaded. The cyclic olefin polymer (A) is divided into two portions and added separately at two times, and accordingly, the mixture having a crosslinked structure may be diluted with the cyclic olefin polymer (A) not having a crosslinked structure, and the increase in the melt viscosity of the resin composition may be thereby prevented. A composition having good abrasion resistance and good melt shapability can be obtained.

    摘要翻译: 提供一种通过熔融捏合玻璃化转变温度为60-200℃的环烯烃聚合物(A)和玻璃化转变温度为0℃的柔性聚合物(B)来制备树脂组合物的方法。 或更低,其中一部分环烯烃聚合物(A)预先与柔性聚合物(B)熔融捏合和自由基引发剂(C),然后向其中加入剩余的环状烯烃聚合物(A)并熔融捏合 。 环状烯烃聚合物(A)分成两部分,分两次加入,因此可以用不具有交联结构的环状烯烃聚合物(A)稀释交联结构的混合物, 因此可以防止树脂组合物的熔融粘度。 可以获得具有良好的耐磨性和良好的熔融成形性的组合物。

    Drawn film and process for producing the same
    7.
    发明授权
    Drawn film and process for producing the same 有权
    制作电影和制作过程

    公开(公告)号:US07314905B2

    公开(公告)日:2008-01-01

    申请号:US10521189

    申请日:2004-03-26

    摘要: A film that has high rigidity and high heat resistance and good releasability from a roughened copper foil surface, which is subjected to surface oxidization or etching treatment with acid, such as a black oxidized copper foil surface and that is suitable as a release film for producing an MLB; and a process for producing the same. A drawn film having a layer (A) which comprises a copolymer that is made from 4-methyl-1-pentene and ethylene or an α-olefin, except 4-methyl-1-pentene, having 3 to 20 carbon atoms and that comprises 80% or more by mole of 4-methyl-1-pentene, the thermal coefficient of contraction of the film being 20% or more in the film-drawn direction, or the peel area of the film being 50% or more when the film, together with a copper foil surface subjected to roughening treatment, is subjected to heating and pressing treatment. This film is suitable for producing an MLB and has good releasability from the roughened copper foil surface, for example, a black oxidized copper foil surface.

    摘要翻译: 具有高刚性和高耐热性以及从被粗糙化的铜箔表面剥离的良好剥离性的薄膜,其经过表面氧化或酸蚀刻处理,例如黑色氧化铜箔表面,并且适合作为用于生产 一个MLB; 及其制造方法。 具有层(A)的拉伸膜,其包含由4-甲基-1-戊烯和乙烯或除了4-甲基-1-戊烯以外的具有3-20个碳原子的α-烯烃的共聚物,其包含 80%以上的4-甲基-1-戊烯,膜的热收缩率为20%以上,膜的剥离面积为50%以上时,膜的收缩率为50%以上 与经受粗糙化处理的铜箔表面一起进行加热和压制处理。 该膜适用于生产MLB,并且具有从粗糙化的铜箔表面,例如黑色氧化铜箔表面的良好的剥离性。

    CHARACTER STRING RETRIEVING CIRCUIT AND CHARACTER STRING RETRIEVING METHOD
    8.
    发明申请
    CHARACTER STRING RETRIEVING CIRCUIT AND CHARACTER STRING RETRIEVING METHOD 失效
    字符串检索电路和字符串检索方法

    公开(公告)号:US20060261988A1

    公开(公告)日:2006-11-23

    申请号:US11383308

    申请日:2006-05-15

    申请人: Toshiyuki Hirose

    发明人: Toshiyuki Hirose

    IPC分类号: H03M7/00

    CPC分类号: H03M7/3086

    摘要: A character string retrieving circuit includes a delay circuit (10) for delaying a match/no match signal created in each clock period to indicate whether or not a character matched with a retrieval target exists in a dictionary by one clock period, creating circuits (2 (i), 3 (i), 5 (i) and 6 (i)) for creating in advance signals of two kinds of a signal (ps1 [i]) to assume that a character matched with a retrieval target exists in a dictionary in the clock period and a signal (ps0 [i]) to assume that a character matched with a retrieval target does not exist in a dictionary in the clock period as signals to predict retrieved results in a certain clock period later and a selecting circuit (4) (i) for selecting a signal with a correct assumption from the signals of 2 kinds in accordance with the match/no match signal delayed by the delay circuit (10), wherein a signal selected by the selecting circuit (4) (i) is used in the next clock period. Thus, in the character string retrieving circuit provided within a data compressing circuit using the LZ77 method, faster character string retrieval can be realized based on pipeline processing.

    摘要翻译: 字符串检索电路包括延迟电路(10),用于延迟在每个时钟周期中产生的匹配/不匹配信号,以指示在字典中与检索对象匹配的字符是否存在一个时钟周期,产生电路(2 (i),3(i),5(i)和6(i)),用于提前产生两种信号(ps 1 [i])的信号,以假设与检索目标匹配的字符存在于 字典在时钟周期中,以及信号(ps 0 [i]),以假设与检索对象匹配的字符在时钟周期中不存在于字典中,作为预测的信号在特定时钟周期内检索到的结果,以及选择 电路(4)(i),用于根据由延迟电路(10)延迟的匹配/不匹配信号从2种信号中选择具有正确假设的信号,其中由选择电路(4)选择的信号, (i)在下一个时钟周期使用。 因此,在使用LZ77方法的数据压缩电路内提供的字符串检索电路中,可以基于流水线处理来实现更快的字符串检索。

    Polyolefin resin composition and crosslinked molded article and process
for the production thereof
    10.
    发明授权
    Polyolefin resin composition and crosslinked molded article and process for the production thereof 失效
    聚烯烃树脂组合物和交联模塑制品及其制备方法

    公开(公告)号:US5414044A

    公开(公告)日:1995-05-09

    申请号:US143245

    申请日:1993-10-29

    IPC分类号: C08L23/02 C08L51/06

    CPC分类号: C08L23/02

    摘要: A polyolefin resin composition comprising (A) a polyolefin resin, (B) a graft-modified .alpha.-olefin copolymer grafted with an unsaturated carboxylic acid and its derivative, and (C) an amino group-containing compound, (D) said polyolefin resin composition containing a crosslinked structure between the amino group-containing compound (C) and the graft-modified .alpha.-olefin copolymer (B), and containing, based on 100 parts by weight of the polyolefin resin (A) and the graft-modified .alpha.-olefin copolymer (B) in total, 1 to 99 parts by weight of each of the polyolefin resin (A) and the graft-modified .alpha.-olefin copolymer (B) and 0.01 to 10 parts by weight of the amino group-containing compound (C). The polyolefin resin composition gives a crosslinked molded article having impact resistance at ordinary temperature and a low temperature.

    摘要翻译: 一种聚烯烃树脂组合物,其包含(A)聚烯烃树脂,(B)用不饱和羧酸及其衍生物接枝的接枝改性的α-烯烃共聚物和(C)含氨基化合物,(D)所述聚烯烃树脂 在含氨基化合物(C)和接枝改性的α-烯烃共聚物(B)之间含有交联结构的组合物,并且基于100重量份的聚烯烃树脂(A)和接枝改性的α α-烯烃共聚物(B),1〜99重量份的聚烯烃树脂(A)和接枝改性的α-烯烃共聚物(B)和0.01〜10重量份的含氨基化合物 (C)。 聚烯烃树脂组合物得到在常温和低温下具有耐冲击性的交联模塑制品。