CIRCUITS AND METHODS FOR CLOCK SIGNAL DUTY-CYCLE CORRECTION

    公开(公告)号:US20110050307A1

    公开(公告)日:2011-03-03

    申请号:US12553792

    申请日:2009-09-03

    Applicant: Feng Lin

    Inventor: Feng Lin

    Abstract: Duty-cycle correction circuits, clock distribution networks, and methods for correcting duty-cycle distortion are disclosed, including methods and apparatus for correcting duty-cycle distortion of differential output clock signals provided from a clock distribution network. In one such method, a single-ended clock signal is generated from differential input clock signals for distribution over a clock distribution network and from which the differential output clock signals are generated. A delay of a model delay path is matched to a propagation delay of the clock distribution network, and the single ended clock signal is adjusted to compensate for duty-cycle distortion.

    Methods of enhancing immune response using electroporation-assisted vaccination and boosting
    22.
    发明申请
    Methods of enhancing immune response using electroporation-assisted vaccination and boosting 审中-公开
    使用电穿孔辅助疫苗接种和加强增强免疫反应的方法

    公开(公告)号:US20100285040A1

    公开(公告)日:2010-11-11

    申请号:US11985871

    申请日:2007-11-16

    CPC classification number: A61K39/00 A61K2039/545

    Abstract: Disclosed are methods of enhancing immune responses. Such methods involve the administration of vaccine compositions to different tissues to elicit an enhanced immune response. The enhanced response arises from the vaccination and boosting route of administration in two separate patient tissues, for example, by first administering a priming vaccination into skin and later administering a boost vaccination in muscle. In each case, priming and boosting, the administration of the vaccine composition is preferably carried out using contemporaneous electroporation-assisted delivery of the antigenic agent.

    Abstract translation: 公开了增强免疫应答的方法。 这样的方法涉及向不同组织施用疫苗组合物以引发增强的免疫应答。 增强的反应来自于在两个单独的患者组织中的接种和加强给药途径,例如,首先将皮下注射疫苗接种,然后在肌肉中施用加强免疫接种。 在每种情况下,引发和加强疫苗组合物的施用优选使用同时进行的抗原性电穿孔辅助递送来进行。

    Document certification and authentication system
    23.
    发明申请
    Document certification and authentication system 审中-公开
    文件认证和认证系统

    公开(公告)号:US20100067691A1

    公开(公告)日:2010-03-18

    申请号:US12150098

    申请日:2008-04-25

    Abstract: This invention safeguards the integrity of a machine-printed paper document by entangling a characteristic signature derived from the document's paper grain structure with the identities of the printing device and the person or organization which issued the document. This protection is achieved using a certification phase performed by an augmented document printer and an authentication phase performed by an augmented document scanner. In the certification phase, the grain structure of a specific area of the original paper is imaged and processed to generate a unique signature for the paper. This signature is doubly encrypted using the private keys of the augmented printer and the certifier. These encryption steps entangle the signature of the paper with its source information in a way that thwarts counterfeiting attacks which either copy the document or falsely attribute its source to a specific printer and/or certifier.

    Abstract translation: 本发明通过利用印刷装置和发行文件的个人或组织的身份缠绕从文件的纸粒结构导出的特征签名来保护机器打印的纸张文档的完整性。 使用由增强文档打印机执行的认证阶段和由增强的文档扫描器执行的认证阶段来实现该保护。 在认证阶段,原始纸张的特定区域的纹理结构被成像和处理,以产生纸张的唯一签名。 该签名使用增强打印机和验证者的私钥进行双重加密。 这些加密步骤以阻止伪造攻击的方式将纸张的签名与其源信息混合在一起,该伪造攻击复制文档或将其源错误地归属于特定打印机和/或验证者。

    Range dependent weighting for spatial compound imaging
    24.
    发明授权
    Range dependent weighting for spatial compound imaging 有权
    空间复合成像的范围依赖加权

    公开(公告)号:US07632229B2

    公开(公告)日:2009-12-15

    申请号:US10914326

    申请日:2004-08-09

    CPC classification number: G01S7/52077 G01S15/8995

    Abstract: A system and method for range dependent weighting in ultrasound imaging. The system includes a transducer array, a data acquisition system, and an imaging processor. The transducer array receives a first ultrasound beam having a first focal depth. The data acquisition system receives a first ultrasound imaging signal from the array. The first signal includes first image data based on at least the first ultrasound beam. The imaging processor combines a first data contribution from the first image data with at least second image data from a second ultrasound imaging signal to create a spatially compounded image. The first data contribution is based on at least the focal depth of the first beam.

    Abstract translation: 超声成像中范围依赖加权的系统和方法。 该系统包括换能器阵列,数据采集系统和成像处理器。 换能器阵列接收具有第一焦点深度的第一超声波束。 数据采集​​系统从阵列接收第一超声成像信号。 第一信号包括至少基于第一超声波束的第一图像数据。 成像处理器将来自第一图像数据的第一数据贡献与来自第二超声成像信号的至少第二图像数据组合以创建空间复合图像。 第一数据贡献基于至少第一光束的焦深。

    Application-oriented and intelligent method for switching communication modes of a dual-mode communication module
    25.
    发明授权
    Application-oriented and intelligent method for switching communication modes of a dual-mode communication module 有权
    面向应用和智能化双模通信模块通信模式切换方法

    公开(公告)号:US07627339B2

    公开(公告)日:2009-12-01

    申请号:US11695062

    申请日:2007-04-02

    CPC classification number: H04W48/18 H04W4/02 H04W88/06

    Abstract: An application-oriented and intelligent method for switching communication modes of a dual-mode communication module is provided. Whether the application program utilizes location-based service is first confirmed. When the application program utilizes location-based service, said communication module is switched to the first communication mode. Otherwise, evaluation, about which one from both the first communication mode and the second communication mode is more beneficial for a user, is performed on the communication module, according to both an available bandwidth and quality of service provided by a communication mode and to both a power and a credit of utilizing communication functions of the communication module. At last, a result of the evaluation is utilized for determining which communication mode from both the first communication mode and the second communication mode to be utilized by the communication module.

    Abstract translation: 提供了一种用于切换双模通信模块的通信模式的面向应用和智能的方法。 应用程序是否使用基于位置的服务首先得到确认。 当应用程序使用基于位置的服务时,所述通信模块被切换到第一通信模式。 否则,根据通信模式提供的可用带宽和服务质量以及通信模式提供的服务质量,对通信模块执行关于从第一通信模式和第二通信模式两者中的哪一个对用户更有利的评估 利用通信模块的通信功能的功能和功能。 最后,评估结果用于确定通信模块将利用来自第一通信模式和第二通信模式的通信模式。

    DELAY LOCKED LOOP CIRCUIT AND METHOD
    26.
    发明申请
    DELAY LOCKED LOOP CIRCUIT AND METHOD 有权
    延迟锁定环路和方法

    公开(公告)号:US20090195279A1

    公开(公告)日:2009-08-06

    申请号:US12026155

    申请日:2008-02-05

    Applicant: Feng Lin

    Inventor: Feng Lin

    CPC classification number: H03L7/0812

    Abstract: Delay locked loop circuits and methods are disclosed. In the embodiments, a delay locked loop may include a phase detector to detect a phase difference between a clock signal and a reference clock signal, and a charge pump that receives the detected phase difference. A low pass filter may filter an output from the charge pump. The delay locked loop may further include a delay line having a plurality of delay elements, the plurality of delay elements including a first selectable group and a second selectable group that is larger than the first selectable group. A first clock signal from the first group of delay elements may be provided to the phase detector to first synchronize the delay locked loop, and following the synchronization, a second clock signal from the second group may be employed to synchronize the delay locked loop.

    Abstract translation: 公开了延迟锁定环电路和方法。 在实施例中,延迟锁定环路可以包括用于检测时钟信号和参考时钟信号之间的相位差的相位检测器和接收检测到的相位差的电荷泵。 低通滤波器可以对电荷泵的输出进行滤波。 延迟锁定环还可以包括具有多个延迟元件的延迟线,所述多个延迟元件包括大于第一可选择组的第一可选组和第二可选组。 来自第一组延迟元件的第一时钟信号可以被提供给相位检测器以首先同步延迟锁定环,并且在同步之后,可以采用来自第二组的第二时钟信号来同步延迟锁定环。

    Clock signal distribution with reduced parasitic loading effects
    27.
    发明授权
    Clock signal distribution with reduced parasitic loading effects 有权
    时钟信号分布具有减小的寄生负载效应

    公开(公告)号:US07528638B2

    公开(公告)日:2009-05-05

    申请号:US10744206

    申请日:2003-12-22

    CPC classification number: H03L7/07 G06F1/10 H03L7/0812 H03L7/0995

    Abstract: Clock signal distribution systems with reduced parasitic loading effects are provided. A reference clock is frequency-divided to produce a lower frequency clock signal. A delay-locked loop (DLL) circuit locks to the lower frequency clock signal, and outputs a corresponding lower frequency clock signal for distribution over a long trace. Power consumption caused by parasitic capacitance of the trace is thereby reduced. Parasitic effects associated with clock jitter are also reduced. A frequency multiplying phase-locked loop (PLL) circuit locks to the lower frequency clock signal, and outputs at least one clock signal having a higher frequency than the lower frequency signal.

    Abstract translation: 提供具有减小的寄生负载效应的时钟信号分配系统。 参考时钟被分频以产生较低频率的时钟信号。 延迟锁定环(DLL)电路锁定到较低频率时钟信号,并输出相应的较低频率时钟信号,以在较长的轨迹上分布。 因此,由于迹线的寄生电容引起的功耗降低。 与时钟抖动相关的寄生效应也降低。 频率倍增锁相环(PLL)电路锁定到较低频率时钟信号,并且输出具有比低频信号更高频率的至少一个时钟信号。

    Intelligent Method for Dynamically Switching Communication Modes of a Dual-Mode Communication Module
    28.
    发明申请
    Intelligent Method for Dynamically Switching Communication Modes of a Dual-Mode Communication Module 有权
    用于动态切换双模通信模块通信模式的智能方法

    公开(公告)号:US20080227482A1

    公开(公告)日:2008-09-18

    申请号:US11684635

    申请日:2007-03-12

    CPC classification number: H04W48/18

    Abstract: With the aid of critical conditions including remaining power of a communication module and both an available bandwidth and a credit of utilizing communication functions of said communication module, and by cooperating with available network services of said communication module, a communication network currently appropriates for said communication module to be switched to is determined, for achieving an aim of retrieving network services and taking requirements of users into consideration simultaneously. Moreover, when there are no available network services for the communication module, said communication module enters a sleep state for about less than ten seconds, for preventing said communication module from consuming additional power or from bringing in unnecessary consumption in other aspects, where both the additional power and the unnecessary consumption in other aspects are caused from the fact that the communication module searches for available network services continuously.

    Abstract translation: 借助于关键条件,包括通信模块的剩余功率以及利用所述通信模块的通信功能的可用带宽和信用,以及通过与所述通信模块的可用网络服务协作,目前通信的通信网络适用于所述通信 确定要切换的模块,以实现检索网络服务并同时考虑用户的需求的目的。 此外,当没有用于通信模块的可用网络服务时,所述通信模块进入睡眠状态大约少于十秒,以防止所述通信模块消耗额外的功率或在其他方面引入不必要的消费,其中 其他方面的额外功率和不必要的消耗是由通信模块连续搜索可用网络服务的事实引起的。

    Method and system for improved efficiency of synchronous mirror delays and delay locked loops

    公开(公告)号:US07423919B2

    公开(公告)日:2008-09-09

    申请号:US11138206

    申请日:2005-05-26

    Applicant: Feng Lin

    Inventor: Feng Lin

    CPC classification number: G11C7/22 G11C7/222 G11C11/4076

    Abstract: A plurality of improved memory systems employing a phase detection system in conjunction with either a synchronous mirror delay or a delay-locked loop, and related methods of operation, are disclosed. The memory systems determine timing characteristics among multiple signals and, based upon those timing characteristics, vary which clock-related signal is output. The improvement relates in part to the incorporation of a clock divider that reduces the frequency of the clock signals utilized by the system. Due to the incorporation of the clock divider and an edge recovery device, attenuation, power dissipation and duty cycle distortion associated with propagation of the clock signal(s) are reduced. Further, the reduction in frequency of the clock signals allows for numerous differently-phased clock signals to be generated within the system, which allows for finer timing comparisons to be performed, thus allowing for finer selections to be made in relation to which clock-related signal is output.

    Apparatus, System, and Method for Providing A Continuous Scanning Sequence for Ultrasound Imaging
    30.
    发明申请
    Apparatus, System, and Method for Providing A Continuous Scanning Sequence for Ultrasound Imaging 有权
    用于超声成像提供连续扫描序列的装置,系统和方法

    公开(公告)号:US20080146920A1

    公开(公告)日:2008-06-19

    申请号:US11551755

    申请日:2006-10-23

    CPC classification number: A61B8/00 A61B8/54

    Abstract: A method of performing a scanning sequence for an ultrasound scan includes establishing a number of ultrasound beams to be transmitted during an ultrasound scan, establishing a pulse repetition interval to be used for performing the ultrasound scan, and establishing a number of firings of each of the ultrasound beams to be performed during the ultrasound scan. The method further includes performing a scanning sequence based on a processing of one or more parameters selected from the group consisting of the number of ultrasound beams, the pulse repetition interval, and the number of firings of the ultrasound beams, wherein the processing of the one or more parameters is configured to provide a continuous interleaving in the transmitted beams thereby avoiding a generation of beam interleaving discontinuities and a formation of artifacts in a resulting image.

    Abstract translation: 执行超声扫描的扫描顺序的方法包括建立在超声扫描期间要发送的超声波束的数量,建立用于执行超声波扫描的脉冲重复间隔,以及建立多个发射 在超声扫描期间执行超声波束。 该方法还包括基于从由超声波束的数目,脉冲重复间隔和超声波束的发射次数组成的组中选择的一个或多个参数的处理来执行扫描序列,其中处理该一个 或更多的参数被配置为在所发送的波束中提供连续交织,从而避免波束交错不连续的产生以及在所得到的图像中的伪像的形成。

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