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    • 29. 发明申请
    • Low voltage to high voltage level shifter and related methods
    • 低电压至高电平电平转换器及相关方法
    • US20050040854A1
    • 2005-02-24
    • US10920639
    • 2004-08-18
    • Erik MentzeHerbert HessKevin BuckDavid Cox
    • Erik MentzeHerbert HessKevin BuckDavid Cox
    • H03K19/0185H03K19/0175
    • H03K19/018521
    • A shifter circuit comprises a high and low voltage buffer stages and an output buffer stage. The high voltage buffer stage comprises multiple transistors arranged in a transistor stack having a plurality of intermediate nodes connecting individual transistors along the stack. The transistor stack is connected between a voltage level being shifted to and an input voltage. An inverter of this stage comprises multiple inputs and an output. Inverter inputs are connected to a respective intermediate node of the transistor stack. The low voltage buffer stage has an input connected to the input voltage and an output, and is operably connected to the high voltage buffer stage. The low voltage buffer stage is connected between a voltage level being shifted away from and a lower voltage. The output buffer stage is driven by the outputs of the high voltage buffer stage inverter and the low voltage buffer stage.
    • 移位电路包括高低电压缓冲级和输出缓冲级。 高电压缓冲级包括布置在晶体管堆叠中的多个晶体管,其具有沿堆叠连接各个晶体管的多个中间节点。 晶体管堆叠被连接在被移位的电压电平和输入电压之间。 该级的逆变器包括多个输入和一个输出。 逆变器输入端连接到晶体管堆叠的相应中间节点。 低电压缓冲级具有连接到输入电压和输出的输入,并且可操作地连接到高电压缓冲级。 低电压缓冲级连接在远离电压和较低电压的电压电平之间。 输出缓冲级由高压缓冲级反相器和低电压缓冲级的输出驱动。
    • 30. 发明授权
    • Pyranoquinolinones and analogs thereof
    • 吡喃喹啉酮及其类似物
    • US4419352A
    • 1983-12-06
    • US236329
    • 1981-02-20
    • David CoxHugh CairnsNigel ChadwickJohn L. Suschitzky
    • David CoxHugh CairnsNigel ChadwickJohn L. Suschitzky
    • A61K31/435A61K31/495A61P11/06A61P37/08C07D215/00C07D215/48C07D239/72C07D239/90C07D311/24C07D335/06C07D491/04C07D491/052C07D495/04A61K31/47A61K31/535C07D413/14
    • C07D491/04C07D215/48C07D239/90C07D311/24C07D335/06C07D495/04Y10S514/826Y10S514/914Y10S514/925Y10S514/926Y10S514/927Y10S514/934
    • There are described compounds of formula I, ##STR1## in which an adjacent pair of R.sub.5, R.sub.6, R.sub.7 and R.sub.8 form a chain --CZC(G.sub.1).dbd.(G.sub.2)--Z--,R.sub.4, R.sub.9 and the remainder of R.sub.5, R.sub.6, R.sub.7 and R.sub.8, which may be the same or different, each represent hydrogen, alkyl, halogen, alkenyl, --NO.sub.2, --NR.sub.1 R.sub.2, --OR.sub.3, --S(O).sub.n R.sub.3 ; or alkyl substituted by hydroxy, amino, alkoxy or carbonyl oxygen,n is 0, 1 or 2,R.sub.1 and R.sub.2, which may be the same or different, each represent hydrogen, alkyl, --CONHR.sub.3, phenyl or phenyl substituted by alkyl or halogen, or R.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached form a 5 or 6 membered heterocyclic ring,R.sub.3 represents hydrogen, alkyl, alkenyl or phenyl,one of G.sub.1 and G.sub.2 is hydrogen and the other is a group E,each E, which may be the same or different, is --COOH, a 5-tetrazolyl group, or a carboxamidotetrazole group,each Z, which may be the same or different, is oxygen or sulphur, andone or two of the atoms, a, b, c and d are nitrogen atoms and the remainder are carbon atoms, R.sup.9 having no significance when two of a, b, c and d are nitrogen,(with certain exclusions)and pharmaceutically acceptable derivatives thereof.There are also described methods for making the compounds and pharmaceutical, e.g. anti-allergic, compositions and mixtures containing them.
    • 描述了式I,其中相邻的一对R 5,R 6,R 7和R 8形成链-CZC(G1)=(G2)-Z-,R4,R9和R5的其余部分的式I化合物, R 6,R 7和R 8可以相同或不同,各自表示氢,烷基,卤素,烯基,-NO 2,-NR 1 R 2,-OR 3,-S(O)n R 3; 或被羟基,氨基,烷氧基或羰基氧取代的烷基,n为0,1或2,可以相同或不同的R 1和R 2各自表示氢,烷基,-CONHR 3,苯基或被烷基或卤素取代的苯基 ,或R1和R2与它们所连接的氮原子一起形成5或6元杂环,R 3表示氢,烷基,链烯基或苯基,G1和G2之一是氢,另一个是基团E,每个 E可以相同或不同,为-COOH,5-四唑基或羧酰胺基四唑基,各Z可以相同或不同,为氧或硫,一个或两个原子为 b,c和d为氮原子,其余为碳原子,当a,b,c和d中的两个为氮时,R 9为无意义(具有某些排除)及其药学上可接受的衍生物。 还描述了制备化合物和药物的方法。 抗过敏剂,组合物和含有它们的混合物。