High noise rejection voltage-controlled ring oscillator architecture

    公开(公告)号:US06828866B2

    公开(公告)日:2004-12-07

    申请号:US10679839

    申请日:2003-10-06

    Applicant: Bin Liu

    Inventor: Bin Liu

    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.

    Method for planarizing DRAM cells
    113.
    发明授权
    Method for planarizing DRAM cells 失效
    平面化DRAM单元的方法

    公开(公告)号:US06174815B1

    公开(公告)日:2001-01-16

    申请号:US08957813

    申请日:1997-10-27

    CPC classification number: H01L21/31055 H01L21/316 H01L21/31625 H01L27/10852

    Abstract: A method for planarizing DRAM cells comprising the steps of providing a silicon substrate having a field oxide layer, an oxide layer and a capacitor formed thereon, then forming a first dielectric layer over the substrate. Next, portions of the first dielectric layer is etched back to form a spacer layer, and then a second dielectric layer is formed over the spacer layer. Thereafter, an insulating layer is formed over the second dielectric layer. Finally, the insulating layer is fully etched back to form a third dielectric layer.

    Abstract translation: 一种用于平坦化DRAM单元的方法,包括以下步骤:提供具有场氧化物层,氧化物层和形成在其上的电容器的硅衬底,然后在衬底上形成第一介电层。 接下来,将第一电介质层的部分进行回蚀以形成间隔层,然后在隔离层上形成第二电介质层。 此后,在第二电介质层上形成绝缘层。 最后,绝缘层被完全回蚀以形成第三电介质层。

    Process for the preparation of pyrrolo[2,3-d]pyrimidines
    114.
    发明授权
    Process for the preparation of pyrrolo[2,3-d]pyrimidines 失效
    制备吡咯并[2,3-d]嘧啶的方法

    公开(公告)号:US06066732A

    公开(公告)日:2000-05-23

    申请号:US138354

    申请日:1998-08-21

    CPC classification number: C07D487/04

    Abstract: 4(3H)-X-7H-Pyrrolo[2,3-d]pyrimidines in which X is .dbd.O or .dbd.NH are prepared by treating a 6-amino-4(3H)-X-pyrimidine with a unsubstituted or substituted 1-nitroalk-1-ene to yield a 6-amino-4(3H)-X-pyrimidine which is substituted in the 5-position by a 1-nitroalk-2-yl group; (ii) converting the 5-(1-nitroalk-2-yl)-6-amino-4(3H)-X-pyrimidine to the corresponding 5-(1-oxoalk-2-yl)-6-amino-4(3H)-X-pyr-imidine; and (iii) removing the elements of water from the 5-(1-oxoalk-2-yl)-6-amino-4(3H)-X-pyrimidine to effect cyclization. A typical embodiment involves treating 2,6-diamino-4(3H)-pyrimidone with 1-nitro-4-(4-ethoxycarbonylphenyl)-1-butene to yield 1 -nitro-2-(2,6-diamino-4(3H)-oxopyrimidin-5-yl)-4-(4-ethoxy-carbonylphenyl)butane which is then treated sequentially with base and acid, without isolation of the intermediate aldehyde, to form 4-[2-(2-amino-4(3H)-oxo-7H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoic acid, a valuable known chemical intermediate for the preparation of N-[4-{2-(2-hydroxy-4-amino-7H-pyrrolo[2,3-d]-pyrimidin-5-yl)ethyl}benzoyl]glutamic acid.

    Abstract translation: 通过用未取代的或取代的1位的6-氨基-4(3H) - 嘧啶处理制备X(= O或= NH)的4(3H) - 7H-吡咯并[2,3-d] - 硝基-1-烯,得到6-位氨基-4(3H) - 嘧啶,其在5-位被1-硝基烷基-2-基取代; (ii)将5-(1-硝基烷基-2-基)-6-氨基-4(3H) - 嘧啶转化成相应的5-(1-氧代-2-基)-6-氨基-4( 3H)-X-吡啶亚胺; 和(iii)从5-(1-氧代-2-基)-6-氨基-4(3H)-X-嘧啶中除去水元素以进行环化。 典型的实施方案涉及用1-硝基-4-(4-乙氧基羰基苯基)-1-丁烯处理2,6-二氨基-4(3H) - 嘧啶酮,得到1-硝基-2-(2,6-二氨基-4 3H) - 氧代嘧啶-5-基)-4-(4-乙氧基 - 羰基苯基)丁烷,然后用碱和酸依次处理,而不分离中间体醛,形成4- [2-(2-氨基-4 (3H) - 氧代-7H-吡咯并[2,3-d]嘧啶-5-基)乙基]苯甲酸是一种有价值的已知化学中间体,用于制备N- [4- {2-(2-羟基-4 - 氨基-7H-吡咯并[2,3-d] - 嘧啶-5-基)乙基}苯甲酰基]谷氨酸。

    MULTIFUNCTIONAL FITNESS EQUIPMENT
    115.
    发明申请

    公开(公告)号:US20250121246A1

    公开(公告)日:2025-04-17

    申请号:US18379664

    申请日:2023-10-13

    Applicant: Bin Liu

    Inventor: Bin Liu

    Abstract: The present invention discloses a fitness equipment comprising frame assembly, drive assembly, slide trolley and a smith system. Two base frames set opposite to each other are connected by connecting rod, and the first column and the second column are set in the vertical direction of the connecting rod which are connected by gantry frame, and the first cross beam and the second cross beam are set vertically on the connecting rod and the gantry frame, respectively, and the third column is set between them, thus forming the structure of fitness equipment, and pulley assembly is cooperated with the first wire rope, the second wire rope, and the third wire rope so that it can drive the slide car moves, realizing the alignment from the middle, which can reduce friction and increase the service life of the multifunctional fitness equipment when in use.

    FLUORINE-CONTAINING ANTI-CORROSIVE COATING
    119.
    发明申请
    FLUORINE-CONTAINING ANTI-CORROSIVE COATING 审中-公开
    含氟的抗腐蚀涂层

    公开(公告)号:US20130225747A1

    公开(公告)日:2013-08-29

    申请号:US13881373

    申请日:2010-12-30

    Inventor: Bin Liu Huayan Xing

    Abstract: A fluorine-containing anti-corrosive coating is prepared by using fluororubber as basic film-forming substance, adding auxiliary agent, reinforcing agent and additive, kneading to obtain fluorine mixed compound, dissolving in organic solvent to obtain component A solution of the mixed compound; and while using it, mixing the component A solution with silane coupling agent as component B at a certain proportion, curing at low temperature and obtaining the fluorine-containing coating.

    Abstract translation: 通过使用氟橡胶作为基本成膜物质,添加助剂,增强剂和添加剂,捏合以获得氟混合物,溶解在有机溶剂中以得到混合化合物的组分A溶液,制备含氟防腐涂料; 在使用时,以一定比例混合组分A溶液与硅烷偶联剂作为组分B,在低温下固化并获得含氟涂层。

    Matching with a large vulnerability signature ruleset for high performance network defense
    120.
    发明授权
    Matching with a large vulnerability signature ruleset for high performance network defense 有权
    与高性能网络防御的大型漏洞签名规则集相匹配

    公开(公告)号:US08522348B2

    公开(公告)日:2013-08-27

    申请号:US12846541

    申请日:2010-07-29

    CPC classification number: H04L63/1416 H04L63/1433 H04L69/22

    Abstract: Systems, methods, and apparatus are provided for vulnerability signature based Network Intrusion Detection and/or Prevention which achieves high throughput comparable to that of the state-of-the-art regex-based systems while offering improved accuracy. A candidate selection algorithm efficiently matches thousands of vulnerability signatures simultaneously using a small amount of memory. A parsing transition state machine achieves fast protocol parsing. Certain examples provide a computer-implemented method for network intrusion detection. The method includes capturing a data message and invoking a protocol parser to parse the data message. The method also includes matching the parsed data message against a plurality of vulnerability signatures in parallel using a candidate selection algorithm and detecting an unwanted network intrusion based on an outcome of the matching.

    Abstract translation: 提供了基于漏洞签名的网络入侵检测和/或预防的系统,方法和装置,其实现了与现有技术的基于正则表达式的系统相当的高吞吐量,同时提供了更高的精度。 候选者选择算法使用少量内存同时有效地匹配数千个漏洞签名。 解析过渡状态机实现快速协议解析。 某些示例提供用于网络入侵检测的计算机实现的方法。 该方法包括捕获数据消息并调用协议解析器来解析数据消息。 该方法还包括使用候选选择算法并行地解析解析的数据消息与多个脆弱性签名并且基于匹配的结果来检测不需要的网络入侵。

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