会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明授权
    • Cascade-comparator A/D converter
    • 级联比较器A / D转换器
    • US4542370A
    • 1985-09-17
    • US419475
    • 1982-09-17
    • Hisashi YamadaShoichi Shimizu
    • Hisashi YamadaShoichi Shimizu
    • H03M1/00H03K13/175
    • H03M1/16H03M1/361
    • In an A/D converter in which a first comparator A/D converter for providing the most significant bits of a digital output and a second comparator A/D converter for providing the least significant bits of the digital output are cascaded, a switching circuit is provided between the first A/D converter and the second A/D converter. This switching circuit is responsive to the comparison between an analog input voltage and first comparison reference voltages in the first A/D converter to apply two adjacent first reference voltages between which the analog input voltages lies to both ends of a voltage dividing circuit network of the second A/D converter to thereby provide second comparison reference voltages. In the second A/D converter, the second comparison reference voltages are compared with the analog input voltage by comparators, to provide the least significant bits of a digital output.
    • 在A / D转换器中,级联用于提供数字输出的最高有效位的第一比较器A / D转换器和用于提供数字输出的最低有效位的第二比较器A / D转换器, 设置在第一A / D转换器和第二A / D转换器之间。 该开关电路响应于第一A / D转换器中的模拟输入电压和第一比较参考电压之间的比较,以施加两个相邻的第一参考电压,模拟输入电压之间位于模拟输入电压的分压电路网络的两端 第二A / D转换器,从而提供第二比较参考电压。 在第二A / D转换器中,通过比较器将第二比较参考电压与模拟输入电压进行比较,以提供数字输出的最低有效位。
    • 32. 发明授权
    • 3,7-Disubstituted-2 or 3-cephem-4-carboxylic acid compounds
    • 3,7-二取代-2或3-头孢烯-4-羧酸化合物
    • US4327093A
    • 1982-04-27
    • US85684
    • 1979-10-17
    • Ikuo UedaMasakazu KobayashiHisashi YamadaHiroki Ono
    • Ikuo UedaMasakazu KobayashiHisashi YamadaHiroki Ono
    • A61K31/545A61K31/546A61P31/04C07D501/14C07D501/18C07D501/20C07D501/26C07D501/28C07D501/30C07D501/34C07D501/38C07D501/60
    • C07D501/14
    • 3,7-Disubstituted-2 or 3-cephem-4-carboxylic acid compounds of the formula: ##STR1## wherein R.sup.1 is acylamino or ar(lower)alkylamino; R.sup.2 is carboxy or carboxy protected by a pharmaceutically acceptable group; --N--R.sup.3, R.sup.4 is di(lower)alkylamino(lower)alkylamino, an unsaturated or saturated 3 to 8 membered heteromonocyclic (lower)alkylamino group containing 1 to 4 nitrogen atoms, an unsaturated or saturated 3 to 8 membered heteromonocyclic (lower)alkylamino group containing 1 to 4 nitrogen atoms substituted by lower alkyl or hydroxy(lower) alkyl, an unsaturated or saturated 5 to 6 membered heteromonocyclic group containing 2 to 4 nitrogen atoms, an unsaturated or saturated 5 to 6 membered heteromonocyclic group containing 2 to 4 nitrogen atoms substituted by lower alkyl or hydroxy(lower)alkyl or hydroxypiperidino, and X is --S-- or ##STR2## and pharmaceutically acceptable salts thereof. The present compounds are useful for the treatment of infectious diseases in animals and human beings.
    • 3,7-二取代的2-或3-头孢烯-4-羧酸化合物,其结构式如下:其中R 1是酰氨基或芳(低级)烷基氨基; R2是被药学上可接受的基团保护的羧基或羧基; -N-R3,R4是二(低级)烷基氨基(低级)烷基氨基,含有1-4个氮原子的不饱和或饱和的3至8元杂单环(低级)烷基氨基,不饱和或饱和的3至8元杂单环(低级) 由低级烷基或羟基(低级)烷基取代的含有1至4个氮原子的烷基氨基,含2-4个氮原子的不饱和或饱和5至6元杂单环基团,含有2至4个不饱和或饱和的5至6元杂单环基团 被低级烷基或羟基(低级)烷基或羟基哌啶子基取代的氮原子,X是-S-或其药学上可接受的盐。 本发明化合物可用于治疗动物和人类的感染性疾病。