利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

24 条记录 (耗时 0.019 秒)

    Process for preparing substituted 2,3-dihydrobenzofuran
    5.
    发明授权
    Process for preparing substituted 2,3-dihydrobenzofuran 失效
    取代2,3-二氢苯并呋喃的制备方法

    公开(公告)号：US4564691A

    公开(公告)日：1986-01-14

    申请号：US602215

    申请日：1984-04-19

    申请人： Carlo Neri ,  Villiam Giroldini ,  Antonio Rinaldi ,  Mario Traversoni ,  Mario Clerici

    发明人： Carlo Neri ,  Villiam Giroldini ,  Antonio Rinaldi ,  Mario Traversoni ,  Mario Clerici

    IPC分类号： C07D307/72 ,  C07C37/20 ,  C07C39/15 ,  C07C39/16 ,  C07C39/367 ,  C07D307/79 ,  C07D307/86

    CPC分类号： C07D307/79 ,  C07C37/20 ,  C07C39/16 ,  C07D307/86

    摘要： A process is provided for preparing a substituted 2,3-dihydrobenzofuran of the general formula ##STR1## in which R.sub.a is hydrogen, halogen, alkyl, straight or branched having from 1 to 4 carbon atoms, aryl, alkaryl, --OH, --OR.sub.3, --N(R.sub.d).sub.2, where R.sub.3 and R.sub.d are alkyl, straight or branched having from 1 to 4 carbon atoms; R.sub.b is alkyl, straight or branched, having from 1 to 6 carbon atoms, aryl, alkaryl; and R.sub.c is hydrogen or the same as R.sub.b, by the rearrangement of a 1,1-bis(2-hydroxybenzene) alkyl and/or aryl-ethane, in the presence of catalytic amounts of a mineral acid or organic acid such as phosphoric, sulfuric or p-toluenesulfonic, at elevated temperatures from 180.degree. to 250.degree. C., and withdrawing the resulting products from the reaction mixture as they are formed. The starting 1,1-bis(2-hydroxybenzene) alkyl and/or aryl-ethane compounds may be obtained by the catalyzed reaction of a substituted biphenol with an aldehyde. The substituted 2,3-dihydrobenzofurans are useful in the manufacture of pesticides.

    摘要翻译： 提供了制备通式为“IMAGE”的取代2,3-二氢苯并呋喃的方法，其中Ra为氢，卤素，具有1-4个碳原子的直链或支链的烷基，芳基，烷芳基，-OH，-OR3 ，-N（Rd）2，其中R3和Rd是具有1至4个碳原子的直链或支链烷基; Rb是具有1-6个碳原子的直链或支链烷基，芳基，烷芳基; 和Rc是氢或与Rb相同，通过在催化量的无机酸或有机酸如磷酸的存在下重新配置1,1-双（2-羟基苯）烷基和/或芳基 - 乙烷， 硫酸或对甲苯磺酸，在180℃至250℃的升高温度下，在反应混合物形成时从所得反应混合物中取出。 起始的1,1-双（2-羟基苯）烷基和/或芳基 - 乙烷化合物可以通过取代的联苯酚与醛的催化反应获得。 取代的2,3-二氢苯并呋喃可用于制造农药。

    Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-benzofuranol
    6.
    发明授权
    Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-benzofuranol 失效
    2,3-二氢-2,2-二甲基-7-苯并呋喃醇的制备方法

    公开(公告)号：US4562266A

    公开(公告)日：1985-12-31

    申请号：US602214

    申请日：1984-04-19

    申请人： Carlo Neri ,  Villiam Giroldini ,  Mario Traversoni ,  Guido Guizzi ,  Emilio Perrotti ,  Antonio Rinaldi

    发明人： Carlo Neri ,  Villiam Giroldini ,  Mario Traversoni ,  Guido Guizzi ,  Emilio Perrotti ,  Antonio Rinaldi

    IPC分类号： C07D307/79 ,  C07C37/20 ,  C07D307/86

    CPC分类号： C07C37/20 ,  C07C37/52 ,  C07D307/86

    摘要： Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-benzofuranol, comprising the reaction between catechol or 4-tert.butyl catechol and isobutyraldehyde in the presence of catalytic amounts of at least one compound selected from the group consisting of the oxides, hydroxides, alcoholates and carboxylates of metals belonging to the Groups IA, IIA, IIB and VIIB of the Periodic System of the Elements and the subsequent reaction of rearrangement of the products which have been obtained, optionally previously removing one or more low-boiling components, in the presence of a compound having acidic properties, of an organic or a mineral nature. The product is useful in the synthesis of pesticides.

    摘要翻译： 制备2,3-二氢-2,2-二甲基-7-苯并呋喃醇的方法，包括在催化量的至少一种选自下组的化合物的存在下，在儿茶酚或4-叔丁基邻苯二酚与异丁醛之间的反应 由属于元素周期系统的IA，IIA，IIB和VIIB族的金属的氧化物，氢氧化物，醇化物和羧酸盐组成，以及随后的已经获得的产物的重排反应，任选地预先除去一个或多个 在具有酸性的化合物的存在下，有机或矿物性质的低沸点成分。 该产品可用于合成农药。

    Noise measurement in video images
    7.
    发明授权
    Noise measurement in video images 有权
    视频图像中的噪声测量

    公开(公告)号：US07941297B2

    公开(公告)日：2011-05-10

    申请号：US12100899

    申请日：2008-04-10

    申请人： Ionut Mirel ,  Edward G. Callway ,  Antonio Rinaldi

    发明人： Ionut Mirel ,  Edward G. Callway ,  Antonio Rinaldi

    IPC分类号： H03F1/26

    CPC分类号： H04N17/00 ,  G06T5/002 ,  G06T2207/10016 ,  H04N5/21

    摘要： Methods and apparatus are described for measuring noise in video image processing. The described methods use horizontal and vertical variances of pixels of an image to extract noise information from the image. Silent regions in an image are considered to determine amplitude variations in the image. A smallest silent region in the image is searched by performing measurements over various block sizes. A least sum of absolute differences approach is used on both horizontal and vertical directions for finding the minimum energy of a received image signal. Using the disclosed method and processor, with a Gaussian distribution for the measured channel noise, both silent image regions, as well as edges, are equally covered.

    摘要翻译： 描述了用于测量视频图像处理中的噪声的方法和装置。 所描述的方法使用图像的像素的水平和垂直方差来从图像提取噪声信息。 图像中的静音区域被认为是确定图像中的幅度变化。 通过对各种块大小执行测量来搜索图像中最小的静音区域。 在水平和垂直方向上使用最小的绝对差值方法来找出接收到的图像信号的最小能量。 使用所公开的方法和处理器，对于所测量的信道噪声具有高斯分布，两个静默图像区域以及边缘同样被覆盖。

    Closed caption support with timewarp
    8.
    再颁专利
    Closed caption support with timewarp 失效
    隐藏的字幕支持与timewarp

    公开(公告)号：USRE39003E1

    公开(公告)日：2006-03-07

    申请号：US09047176

    申请日：1998-03-24

    申请人： Stephen J. Orr ,  Antonio Rinaldi

    发明人： Stephen J. Orr ,  Antonio Rinaldi

    IPC分类号： H04N5/445

    CPC分类号： G06F3/1423 ,  G06F3/14 ,  G09G2340/125 ,  H04N5/44513 ,  H04N21/4122 ,  H04N21/431 ,  H04N21/435

    摘要： Method of providing closed captioned data to a television viewer comprised of detecting closed captioned data signals transmitted in conjunction with a television signal, decoding the data signals to caption display signals, and displaying the caption display signals on an auxiliary screen separate from a screen displaying the television signals.

    摘要翻译： 向电视观众提供隐藏式字幕数据的方法，包括检测结合电视信号发送的闭路字幕数据信号，将数据信号解码为字幕显示信号，以及在辅助屏幕上显示字幕显示信号，该显示信号与显示 电视信号。

    Close caption support with timewarp
    9.
    发明授权
    Close caption support with timewarp 失效
    用timewarp关闭字幕支持

    公开(公告)号：US5537151A

    公开(公告)日：1996-07-16

    申请号：US197336

    申请日：1994-02-16

    申请人： Stephen J. Orr ,  Antonio Rinaldi

    发明人： Stephen J. Orr ,  Antonio Rinaldi

    IPC分类号： G06F3/14 ,  H04N5/445

    CPC分类号： G06F3/1423 ,  H04N21/4122 ,  H04N21/431 ,  H04N21/435 ,  H04N5/44513 ,  G06F3/14 ,  G09G2340/125

    摘要： Method of providing closed captioned data to a television viewer comprised of detecting closed captioned data signals transmitted in conjunction with a television signal, decoding the data signals to caption display signals, and displaying the caption display signals on an auxiliary screen separate from a screen displaying the television signals.

    摘要翻译： 向电视观众提供隐藏式字幕数据的方法，包括检测结合电视信号发送的闭路字幕数据信号，将数据信号解码为字幕显示信号，以及在辅助屏幕上显示字幕显示信号，该显示信号与显示 电视信号。