Circuit for detecting the locked condition of PSK or QAM
    61.
    发明授权
    Circuit for detecting the locked condition of PSK or QAM 失效
    用于检测PSK或QAM的锁定状态的电路

    公开(公告)号:US5861773A

    公开(公告)日:1999-01-19

    申请号:US982979

    申请日:1997-12-02

    Applicant: Jacques Meyer

    Inventor: Jacques Meyer

    CPC classification number: H04L27/3827 H04L27/2273 H04L2027/0057 Y10S331/02

    Abstract: A method for detecting a locked condition of a demodulator of at least one signal that may have discrete levels defining a constellation of nominal points in a plane. The method includes the steps of defining reference areas about the nominal points, a reference area being separated from another by a band or an angular sector crossing the origin of the constellation plane, and indicating a locked condition if the ratio of points occurring in the reference areas is above the probability for points to occur in the reference area, when the demodulator is wrongly adjusted.

    Abstract translation: 一种用于检测至少一个信号的解调器的锁定状态的方法,该信号可以具有定义平面中的标称点的星座的离散电平。 该方法包括以下步骤:定义关于标称点的参考区域,参考区域与带状物或与星座图平面的原点相交的角扇区与另一参考区域分离,并且如果参考点中出现的点的比率指示锁定条件 当解调器错误调整时,区域高于参考区域中出现点的概率。

    Circuit for localizing errors in Reed-Solomon decoders
    62.
    发明授权
    Circuit for localizing errors in Reed-Solomon decoders 失效
    用于定位Reed-Solomon解码器中的错误的电路

    公开(公告)号:US5737343A

    公开(公告)日:1998-04-07

    申请号:US493830

    申请日:1995-06-22

    Applicant: Jacques Meyer

    Inventor: Jacques Meyer

    CPC classification number: H03M13/1535

    Abstract: In a Reed-Solomon error correction system, the coefficients of the syndrome polynomial of degree 2t-1 are stored in a first set of registers R, coefficients 0,0 . . . ,0,1,0 are stored in a second set of registers .lambda., and a first number is stored in a counter. Coefficients 1,0 . . . ,0 are stored in a third set of registers Q, zeroes are stored in a fourth set of registers .mu., and a number exceeding the first number by 1 is stored in an indicator register. a) If the content of the counter is higher than or equal to the content of the indicator register, or if the content of the last register of the first set of registers R is zero, value Q.sub.2t-1 R.sub.i-1 +R.sub.2t-1 Q.sub.i-1 is stored in each register R.sub.i of the first set of registers R, and value Q.sub.2t-1 .lambda..sub.i-1 +R.sub.2t-1 .lambda..sub.i-1 is stored in each register .lambda..sub.i of the third set of registers .lambda.. b) Otherwise, the contents of the first set of registers R, the second set of registers .lambda., and the counter are further transferred into the third set of registers Q, the fourth set of registers .mu., and the indicator register, respectively. Steps a) or b) are repeated until the content of the counter is decremented by t.

    Abstract translation: 在Reed-Solomon纠错系统中,2t-1等级的校正子多项式的系数存储在第一组寄存器R,系数0,0中。 。 。 0,1,0存储在第二组寄存器lambda中,第一个数字被存储在计数器中。 系数1,0。 。 。 ,0存储在第三组寄存器Q中,零被存储在第四组寄存器mu中,并且超过第一个数字1的数字被存储在指示符寄存器中。 a)如果计数器的内容高于或等于指示符寄存器的内容,或者如果第一组寄存器R的最后一个寄存器的内容为零,则值Q2t-1 Ri-1 + R2t-1 Qi-1存储在第一组寄存器R的每个寄存器Ri中,并且值Q2t-1λi-1 + R2t-1λi-1被存储在第三组寄存器λ的每个寄存器λi中。 b)否则,第一组寄存器R,第二组寄存器lambda和计数器的内容分别进一步传送到第三组寄存器Q,第四组寄存器mu和指示符寄存器。 重复步骤a)或b),直到计数器的内容减少t为止。

    Epoxy resin and noval cross-linking agent therefor
    63.
    发明授权
    Epoxy resin and noval cross-linking agent therefor 失效
    环氧树脂及其交联剂

    公开(公告)号:US4471025A

    公开(公告)日:1984-09-11

    申请号:US558584

    申请日:1983-12-06

    CPC classification number: C08G59/4223 Y10T428/31511

    Abstract: A composition of matter including (i) an epoxy resin and (ii) a cross-linking agent therefor, said cross-linking agent being the reaction product of trimellitic anhydride with a diol, and wherein such reaction the molar ratio anhydride/diol is not in excess of 2, is a useful binder for coating compositions, notably the powder paints.

    Abstract translation: 一种物质组合物,包括(i)环氧树脂和(ii)其交联剂,所述交联剂是偏苯三酸酐与二醇的反应产物,并且其中这种反应酐/二醇的摩尔比不是 超过2,是涂料组合物,特别是粉末涂料的有用粘合剂。

    Defoliant composition and method
    64.
    发明授权
    Defoliant composition and method 失效
    脱叶成分和方法

    公开(公告)号:US4440561A

    公开(公告)日:1984-04-03

    申请号:US345490

    申请日:1982-02-03

    CPC classification number: A01N47/30 A01N61/02

    Abstract: Compositions containing Bifenox and Linuron in combination with a mineral oil, such as white oil, show a remarkable synergism of the constituents and are of use as pre-harvest defoliants for crop plants, e.g. for desiccation of potato plants.

    Abstract translation: 含有Bifenox和Linuron与矿物油(例如白油)组合的组合物显示了组分的显着协同作用,并且用作作物植物的收获前脱叶剂。 用于马铃薯植物的干燥。

    Cross-linkable saturated powderous compositions and powderous painting
and coating compositions containing same
    66.
    发明授权
    Cross-linkable saturated powderous compositions and powderous painting and coating compositions containing same 失效
    可交联的饱和粉末组合物和含有它们的粉末涂料和涂料组合物

    公开(公告)号:US4412034A

    公开(公告)日:1983-10-25

    申请号:US265400

    申请日:1981-05-20

    Abstract: A saturated cross-linkable binder composition adapted for preparing coatings having a non-glossy surface is disclosed which comprises:(a) at least one cross-linkable resin selected from the group consisting of saturated polyester resins and epoxide resins;(b) a cross-linking agent wherein the functional groups are selected from the group consisting of acid groups and acid anhydride groups and, in case the cross-linkable resin is a saturated polyester resin, also masked isocyanate groups; and,(c) having associated therewith a salt of an at least bivalent metal ion and an organic acid anion selected from the group consisting of carboxylic anions and acetylacetonate.These binder compositions are particularly useful as binding agents in powderous paint compositions which yield a paint coating having a non-glossy and textured surface.

    Abstract translation: 公开了一种适于制备具有非光泽表面的涂层的饱和可交联粘合剂组合物,其包含:(a)至少一种选自饱和聚酯树脂和环氧树脂的可交联树脂; (b)交联剂,其中所述官能团选自酸基和酸酐基团,并且在可交联树脂为饱和聚酯树脂的情况下也掩蔽异氰酸酯基团; 和(c)与其相关联的是至少二价金属离子和选自羧酸阴离子和乙酰丙酮化物的有机酸阴离子的盐。 这些粘合剂组合物特别可用作粉末涂料组合物中的粘合剂,其产生具有非光泽和纹理表面的涂料涂料。

Patent Agency Ranking