Nonvolatile semiconductor storage device

    公开(公告)号:US06438035B1

    公开(公告)日:2002-08-20

    申请号:US09880114

    申请日:2001-06-14

    IPC分类号: G11C1606

    摘要: There is provided a nonvolatile semiconductor storage device capable of securing sufficient read accuracy without providing superfluous sense time margin when there are variations in temperature and transistor characteristics. This nonvolatile semiconductor storage device includes a reference cell 2 whose threshold value is preparatorily set to a value between a lower limit of a threshold voltage distribution in a state 0 in which nonvolatile memory cells MC00 through MC12 have a high threshold value and an upper limit of a threshold voltage distribution in a state 1 in which the memory cells have a low threshold value. When the characteristics of the nonvolatile memory cells MC00 through MC12 shift due to the influence of a change in temperature or the like, the characteristics of the reference cell 2 shift so as to follow this characteristic shift. The operation timing of a sense amplifier section 8 in read operation is generated by a control circuit, and the timing of the termination of the sense operation from among the operation timing is determined by timing control circuit (delay circuit delay and AND circuits AN0 and AN1) with the termination of the sense of the reference cell 2.

    Vehicular headlamp with integrated aiming bracket
    52.
    发明授权
    Vehicular headlamp with integrated aiming bracket 失效
    带集成瞄准支架的车载前照灯

    公开(公告)号:US06280071B1

    公开(公告)日:2001-08-28

    申请号:US09442239

    申请日:1999-11-17

    IPC分类号: B60Q100

    摘要: A vehicular headlamp including a light source bulb, a reflector reflecting light from the light source bulb forward in a convergent manner, a condensing lens provided at such a position that, of the light reflected from the reflector, at least a meridian light flux in a vertical cross-section is incident as divergent light, a shade provided in proximity to a position of convergence of the meridian light flux and which blocks part of the reflected light, and an aiming bracket to which an aiming member for tilting the reflector is attached. The shade is composed of a metal plate member that is formed integrally with the aiming bracket, and is attached to the reflector. With this construction, the total number of parts of the headlamp is reduced and costs can be reduced accordingly.

    摘要翻译: 一种车辆用前照灯,包括光源灯泡,以会聚方式向前反射来自所述光源灯泡的光的反射器,设置在所述反射器反射的光的至少一个子午线光束的位置处的聚光透镜, 垂直横截面作为发散光入射,阴影设置在子午线光束的会聚位置附近并且阻挡反射光的一部分;以及瞄准支架,用于倾斜反射器的瞄准构件附接到该对准支架上。 阴影由与瞄准支架一体形成的金属板构件构成,并附接到反射器。 通过这种结构,能够减少前照灯的总数,能够降低成本。

    Information record medium, apparatus for recording the same and apparatus for reproducing the same
    53.
    发明授权
    Information record medium, apparatus for recording the same and apparatus for reproducing the same 有权
    信息记录媒体,记录装置及其再生装置

    公开(公告)号:US06253018B1

    公开(公告)日:2001-06-26

    申请号:US09404765

    申请日:1999-09-24

    IPC分类号: H04N591

    摘要: An information recording apparatus (SS1) is provided with: a signal process device (72) for applying a predetermined signal process to record information (R), which is to be recorded onto an information record medium (1: DVD) and is inputted from the external, to output processed record information (Sr), and for dividing control information (Si), which corresponds to the record information and is inputted from the external, into search control information (Sdsi, DSI), which is information to search a record position of the record information to be reproduced at a time of reproducing the record information, and reproduction display control information (Spci, PCI), which is information to control a reproduced display of the record information at the time of reproducing the record information, to output the search control information and the reproduction display control information; a multiplex device (75, 76) for multiplexing the processed record information, the search control information and the reproduction display control information to output multiplexed record information (Sap); and a record device (77, 78) for recording the multiplexed record information onto the information record medium.

    摘要翻译: 信息记录装置(SS1)具有:信号处理装置(72),用于施加预定信号处理以记录要记录到信息记录介质(1:DVD)上并从 外部输出处理记录信息(Sr),并将与记录信息相对应并从外部输入的控制信息(Si)划分为搜索控制信息(Sdsi,DSI),作为搜索信息 在再现记录信息时要再现的记录信息的记录位置,以及再生显示控制信息(Spci,PCI),其是再现记录信息时控制记录信息再生显示的信息, 输出搜索控制信息和再现显示控制信息; 用于将处理的记录信息多路复用的多路复用装置(75,76),搜索控制信息和再现显示控制信息以输出多路复用记录信息(Sap); 以及用于将复用的记录信息记录到信息记录介质上的记录装置(77,78)。

    Modified polyacetal and method of producing the same
    56.
    发明授权
    Modified polyacetal and method of producing the same 失效
    改性聚缩醛及其制备方法

    公开(公告)号:US5973081A

    公开(公告)日:1999-10-26

    申请号:US663279

    申请日:1996-06-07

    摘要: A modified polyacetal is obtainable by heating 0.1 to 30 parts by weight of (B) a polymerizable compound having a modifying group such as an epoxy group, a carboxyl group or an acid anhydride group relative to 100 parts by weight of (A) a base polyacetal and introducing the modifying group of the polymerizable compound to the base polyacetal. The base polyacetal (A) includes (A1) a polyacetal selected from polyoxymethylene homopolymers and copolymers, and (A2) a polymerizable polyacetal having a functional group comprising a polymerizablly unsaturated bond. The introduction efficiency of the modifying group can be enhanced by adding 0.01 to 2.5 parts by weight of (C) a free-radical initiator relative to 100 parts by weight of the total amount of the components (A) and (B), and mixing the resultant mixture under a molten state of the polyacetal. According to such method, the affinity of the polyacetal is improved by introducing the modifying group to the base polyacetal with ease and high efficiency.

    摘要翻译: PCT No.PCT / JP95 / 02138 Sec。 371日期1996年6月7日第 102(e)日期1996年6月7日PCT提交1995年10月19日PCT公布。 第WO96 / 13535号公报 日期:1996年5月9日改性聚缩醛相对于100重量份的(B)具有环氧基,羧基或酸酐基等改性基团的聚合性化合物,加热0.1〜30重量份, A)基础聚缩醛,并将可聚合化合物的改性基团引入到基础聚缩醛中。 基础聚缩醛(A)包括(A1)选自聚甲醛均聚物和共聚物的聚缩醛,(A2)具有包含可聚合不饱和键的官能团的聚合性缩醛。 相对于100重量份的组分(A)和(B)的总量,通过加入0.01至2.5重量份的(C)自由基引发剂可以提高改性基团的引入效率,并且混合 所得混合物在聚缩醛的熔融状态下。 根据这种方法,通过将改性基团容易且高效率地引入到基础聚缩醛中来改善聚缩醛的亲和性。

    Information recording medium with interleaved data, apparatus for
recording same and apparatus for reproducing same
    57.
    发明授权
    Information recording medium with interleaved data, apparatus for recording same and apparatus for reproducing same 失效
    具有交错数据的信息记录介质,用于记录的装置和用于再现其的装置

    公开(公告)号:US5966352A

    公开(公告)日:1999-10-12

    申请号:US820256

    申请日:1997-03-18

    摘要: An information recording medium includes a plurality of first information pieces each of which is reproduced successively in time by a reproducing apparatus; a plurality of second information pieces each of which is successively positioned on the information recording medium, one or more of the second information piece constituting the first information piece; a plurality of third information pieces each of which is individually reproducible and is a unit for jump reproduction by the reproducing apparatus, one or more of the third information piece constituting the second information pieces; at least one related information piece included in the third information piece and relating to a reproduction order and a reproduction method of the second information pieces; at least one reproduction control information piece referred to by the reproducing apparatus and relating to a reproduction order and a reproduction method of the first information pieces. At least one of the related information piece and the reproduction control information piece includes a jump reproduction method selection information piece indicating one of a plurality of jump reproduction methods performed by the reproducing apparatus.

    摘要翻译: 信息记录介质包括多个第一信息,每个第一信息由再现装置在时间上连续再现; 多个第二信息片,其中每个第二信息片段连续地位于信息记录介质上,构成第一信息片的第二信息片中的一个或多个; 多个第三信息片,其中每一个都是可单独再现的,并且是由再现装置跳转再现的单元,构成第二信息片的第三信息片中的一个或多个; 包括在第三信息片中的与第二信息片的再现顺序和再现方法相关的至少一个相关信息片; 至少一个再现控制信息片段,由再现装置参考并涉及第一信息片段的再现顺序和再现方法。 相关信息片和再现控制信息片中的至少一个包括指示由再现装置执行的多个跳转再现方法之一的跳转再现方法选择信息片段。

    Process for preparing polyacetal copolymer
    59.
    发明授权
    Process for preparing polyacetal copolymer 失效
    制备聚缩醛共聚物的方法

    公开(公告)号:US5844059A

    公开(公告)日:1998-12-01

    申请号:US791469

    申请日:1997-01-27

    摘要: To prepare a thermally very stable polyacetal copolymer containing a very small amount of unstable parts in a high yield according to a simple process wherein an isopolyacid or an acid salt thereof is used as the polymerization catalyst in the copolymerization of trioxane as the principal monomer with a comonomer copolymerizable therewith, and wherein deactivation of the catalyst can be effected simply without fail through contact with a basic gas after polymerization without the necessity for any washing step. In the preparation of a polyacetal copolymer by the copolymerization of trioxane as the principal monomer with a cyclic ether or cyclic formal having at least one carbon--carbon bond as a comonomer, the copolymerization is effected using an isopolyacid or an acid salt thereof as the polymerization catalyst, followed by contact with a basic gas as a deactivator to deactivate the catalyst, and subsequent heat-melting treatment of the resulting crude polymer intact without washing thereof.

    摘要翻译: 为了制备含有非常少量的不稳定部分的热非常稳定的聚缩醛共聚物,根据简单的方法,其中在三恶烷作为主要单体的共聚合中使用异多酸或其酸盐作为聚合催化剂, 可与其共聚的共聚单体,并且其中催化剂的失活可以通过在聚合后与碱性气体接触而简单地进行,而不需要任何洗涤步骤。 在通过三恶烷作为主要单体与具有至少一个碳 - 碳键作为共聚单体的环状醚或环状缩甲醛进行共聚制备聚缩醛共聚物时,使用等多酸或其酸性盐作为聚合反应进行共聚 催化剂,然后与作为失活剂的碱性气体接触以使催化剂失活,随后对所得粗聚合物进行热熔融处理而不洗涤。