公开(公告)号：US06657503B2

公开(公告)日：2003-12-02

申请号：US10131963

申请日：2002-04-25

Applicant: Bin Liu

Inventor： Bin Liu

IPC: H03B2700

CPC classification number: H03F3/45183 ,  H03F3/4565 ,  H03F3/72 ,  H03F2203/7203 ,  H03K3/0231 ,  H03K3/0322 ,  H03K5/133 ,  H03K2005/00208 ,  H03L7/0995

Abstract: A ring oscillator circuit, such as a VCO, with a relatively high level of noise rejection for noise originating from both the voltage supply and ground. The ring oscillator circuit is composed of a plurality of differential delay circuits, each differential delay circuit generating a differential output signal that is a delayed (and preferably inverted) version of a differential input signal. Each differential delay circuit includes first and second input transistors for receiving the differential input signal. Each differential delay circuit also includes first and second load transistors coupled in parallel with the respective first and second input transistors. Each differential delay circuit further includes a first current source coupled between the first input transistor and a first power supply terminal (e.g., a voltage supply terminal), a second current source coupled between the second input transistor and the first power supply terminal and a third current source coupled between the first and second input transistors and a second power supply terminal (e.g., a ground terminal). The first and second current sources reduce the coupling of noise from the first power supply terminal to the output. The third current source reduces the coupling of noise from the second power supply terminal to the output.

公开(公告)号：US06518219B1

公开(公告)日：2003-02-11

申请号：US09687564

申请日：2000-10-13

Applicant: Qinghe Yang ,  Bin Liu ,  Hong Nie ,  Xuefen Liu ,  Dadong Li ,  Yahua Shi ,  Fucheng Zhuang

Inventor： Qinghe Yang ,  Bin Liu ,  Hong Nie ,  Xuefen Liu ,  Dadong Li ,  Yahua Shi ,  Fucheng Zhuang

IPC: B01J2300

CPC classification number: B01J23/85 ,  B01J21/04 ,  B01J35/0026 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1061 ,  B01J35/108 ,  B01J37/033 ,  C10G45/08

Abstract: A catalyst for hydrofining fraction oils, comprises an alumina carrier and at least one metal and/or thereof oxide of Group VIB and at least one metal and/or thereof oxide of Group VIII supported on said alumina carrier. The pore volume of said alumina carrier is not less than 0.35 ml/g, in which the pore volume of the pores having a diameter of 40-100 angstrom accounts for more than 80% of the total pore volume, the alumina carrier is prepared by a special process. The catalyst possesses relatively high hydrogenation activity.

Abstract translation: 用于加氢精馏部分油的催化剂包含氧化铝载体和至少一种VIB族的金属和/或氧化物和至少一种负载在所述氧化铝载体上的第VIII族金属和/或氧化物。 所述氧化铝载体的孔体积不小于0.35ml / g，其中直径为40-100埃的孔的孔体积占总孔体积的大于80％，氧化铝载体由 一个特殊的过程。 催化剂具有较高的氢化活性。

公开(公告)号：US06426407B1

公开(公告)日：2002-07-30

申请号：US08473888

申请日：1995-06-07

Applicant: Jacques R. Fresco ,  Bin Liu ,  Lynn C. Klotz

Inventor： Jacques R. Fresco ,  Bin Liu ,  Lynn C. Klotz

IPC: C07H2102

CPC classification number: C07H21/00 ,  C12Q1/6839

Abstract: The invention relates to compositions of matter capable of serving as residues for specific binding of third strands to double-stranded complementary nucleic acids of any base-pair sequence.

Abstract translation: 本发明涉及能够作为第三链与任何碱基对序列的双链互补核酸特异性结合的残基的物质组合物。