Voltage-controlled oscillator using current feedback network
    1.
    发明申请
    Voltage-controlled oscillator using current feedback network 有权
    使用电流反馈网络的压控振荡器

    公开(公告)号:US20050156682A1

    公开(公告)日:2005-07-21

    申请号:US10957749

    申请日:2004-10-05

    IPC分类号: H03B5/08 H03B1/00 H03B5/12

    摘要: Provided is a voltage-controlled oscillator (VCO) using a current feedback network for use in a wireless communication terminal. The voltage-controlled oscillator has high input impedance and low output impedance, so that a degree of isolation from the external load is excellent, thereby preventing degradation of the Q-factor by the load in overall oscillation circuit. In the voltage-controlled oscillator of the present invention, an LC resonator is provided to generate positive feedback, and negative resistance may be obtained at a wider frequency range by tuning a varactor of the LC resonator. And a boosting inductor is inserted into the positive feedback loop to have a greater negative resistance, therefore it is possible to prevent a problem in which the oscillation does not occur due to the parasitic resistance components generated during circuit fabrication.

    摘要翻译: 提供了一种使用电流反馈网络在无线通信终端中使用的压控振荡器(VCO)。 压控振荡器具有高输入阻抗和低输出阻抗,使得与外部负载的隔离度优异,从而防止整个振荡电路中的负载对Q因子的劣化。 在本发明的压控振荡器中,设置LC谐振器以产生正反馈,并且通过调谐LC谐振器的变容二极管可以在更宽的频率范围内获得负电阻。 并且将增压电感器插入到正反馈回路中以具有更大的负电阻,因此可以防止由于在电路制造期间产生的寄生电阻分量而不发生振荡的问题。

    Automatic gain control feedback amplifier
    2.
    发明申请
    Automatic gain control feedback amplifier 有权
    自动增益控制反馈放大器

    公开(公告)号:US20060028279A1

    公开(公告)日:2006-02-09

    申请号:US10995033

    申请日:2004-11-23

    IPC分类号: H03F3/08

    摘要: There is provided a feedback amplifier capable of easily controlling its dynamic range without a separate gain control signal generation circuit. The feedback amplifier includes an input terminal detecting an input voltage from input current, a feedback amplification unit amplifying the input voltage to generate an output signal, and an output terminal outputting a signal amplified by the feedback amplification unit. The feedback amplification unit includes a feedback circuit unit including a feedback resistor located between the input terminal and the output terminal, and a feedback transistor connected in parallel to the feedback resistor; and a bias circuit unit supplying a predetermined bias voltage to the feedback transistor of the feedback circuit unit and merged in the feedback amplification unit.

    摘要翻译: 提供了一种反馈放大器,其能够在没有单独的增益控制信号产生电路的情况下容易地控制其动态范围。 反馈放大器包括检测来自输入电流的输入电压的输入端子,放大输入电压以产生输出信号的反馈放大单元以及输出由反馈放大单元放大的信号的输出端子。 反馈放大单元包括反馈电路单元,该反馈电路单元包括位于输入端子和输出端子之间的反馈电阻器和与反馈电阻器并联连接的反馈晶体管; 以及偏置电路单元,向反馈电路单元的反馈晶体管提供预定的偏置电压并且合并在反馈放大单元中。

    Systems and Methods for Real-Time Tracking of Photoacoustic Sensing
    3.
    发明申请
    Systems and Methods for Real-Time Tracking of Photoacoustic Sensing 有权
    光声感测实时跟踪系统与方法

    公开(公告)号:US20150150464A1

    公开(公告)日:2015-06-04

    申请号:US14561087

    申请日:2014-12-04

    摘要: Systems and methods for real-time tracking of photoacoustic sensing are provided. In one aspect, a method for performing in vivo analysis of a subject is provided. The method includes directing an electromagnetic excitation toward a subject to be analyzed, and acquiring, with an ultrasound probe, data about resultant waves caused by the electromagnetic excitation. The method also includes processing the acquired data to extract information related to properties of tissues in the subject, and comparing the information related to the properties of tissues in the subject using a set of criteria. The method also includes generating a report about a condition of the subject based on the comparison of the information related to properties of the tissues in the subject.

    摘要翻译: 提供了用于光声感测的实时跟踪的系统和方法。 一方面,提供了一种用于进行受试者体内分析的方法。 该方法包括向被分析对象引导电磁激励,并用超声波探头获取由电磁激励引起的合成波的数据。 该方法还包括处理所获取的数据以提取与受试者中组织的属性相关的信息,并且使用一组标准来比较与对象中的组织的属性相关的信息。 该方法还包括基于与对象中的组织的属性相关的信息的比较来生成关于对象的状况的报告。

    AUTOFOCUSING ENDOSCOPE AND SYSTEM
    4.
    发明申请
    AUTOFOCUSING ENDOSCOPE AND SYSTEM 审中-公开
    自动注射内镜和系统

    公开(公告)号:US20130253313A1

    公开(公告)日:2013-09-26

    申请号:US13813896

    申请日:2011-08-02

    IPC分类号: A61B1/00 A61B3/10 A61B1/07

    摘要: An autofocusing endoscope includes an objective lens, a relay optical system arranged to relay an image between the objective lens and a proximal end of the autofocusing endoscope, an optical fiber arranged with a distal end proximate the objective lens, a light source arranged to couple light into the optical fiber, an optical detection system arranged to receive and detect light from the optical fiber, and a data processor constructed to communicate with the optical detection system while in operation. The data processor is configured to determine a distance of a surface to be imaged through the objective lens and provide instructions for adjusting a focus of the autofocusing endoscope of the surface.

    摘要翻译: 一种自动对焦内窥镜,包括:物镜;中继光学系统,被配置为中继所述物镜与所述自聚焦内窥镜的近端之间的图像,配置有靠近所述物镜的远端的光纤;光源, 光纤检测系统被布置成接收和检测来自光纤的光;以及数据处理器,被构造成在操作中与光学检测系统进行通信。 数据处理器被配置为确定要通过物镜成像的表面的距离,并提供用于调整表面的自动聚焦内窥镜的焦点的指令。

    Pillar anchor and method for manufacturing the same
    5.
    发明申请
    Pillar anchor and method for manufacturing the same 审中-公开
    支柱锚及其制造方法

    公开(公告)号:US20050017498A1

    公开(公告)日:2005-01-27

    申请号:US10897259

    申请日:2004-07-22

    申请人: Jin Kang

    发明人: Jin Kang

    IPC分类号: B60R22/24 B60R22/00

    CPC分类号: B21D53/88 B21D35/00 B60R22/24

    摘要: The present invention relates to an improved pillar anchor and a method for manufacturing the same. According to the pillar anchor of the present invention described as above and the method for manufacturing the same, the rims of the pair of separated base plates abut each other, so that the surface in contact with the belt is formed in a “C”-shape. Thus, it is simple to manufacture the pillar anchor of the present invention, and moreover, the number of processes needed for manufacture is reduced. In addition, since the inner peripheral surfaces of the belt insertion holes around which the belt is wound are generally formed of only a steel plate, the friction coefficient between the belt and the inner peripheral surfaces of the belt insertion holes is reduced. Accordingly, when the belt is subjected to tension, damage caused from wear and tear of the belt due to the friction between the belt and the inner peripheral surfaces of the belt insertion holes is effectively reduced. Moreover, the belt can smoothly moves on the inner peripheral surfaces of the belt insertion holes.

    摘要翻译: 本发明涉及一种改进的支柱锚及其制造方法。 根据如上所述的本发明的支柱锚及其制造方法,一对分离的基板的边缘彼此邻接,使得与带接触的表面形成为“C”形, 形状。 因此,制造本发明的支柱锚固件变得简单,此外,减少制造所需的工序数量。 此外,由于带卷绕的带插入孔的内周面通常仅由钢板形成,所以带与带插入孔的内周面之间的摩擦系数降低。 因此,当带受到张力时,由于带与带插入孔的内周面之间的摩擦而导致的带的磨损造成的损伤被有效地减少。 此外,带可以在带插入孔的内周面上平滑地移动。

    Method of preparing a composite of organic and inorganic compounds
    6.
    发明授权
    Method of preparing a composite of organic and inorganic compounds 有权
    制备有机和无机化合物复合物的方法

    公开(公告)号:US6107396A

    公开(公告)日:2000-08-22

    申请号:US192864

    申请日:1998-11-16

    CPC分类号: C07C29/70

    摘要: A method of preparing a composite of organic and inorganic compounds includes the steps of reacting a mixed solution of a metal alkoxide and a silicon-containing compound with a catalyst to produce an alcogel of a metal oxide or a complex metal oxide. The metal alkoxide is prepared by reacting at least one metal with an alcohol and the mixed solution is prepared by mixing the metal alkoxide with the silicon-containing compound. An alcogel is produced from the reacting step and alcohol is impregnated within the inorganic oxide lattice structure of the alcogel. Furthermore, the method of preparing a composite of an organic and an inorganic compound includes the steps of centrifuging the alcogel to separate any alcohol from the alcogel to form a gel, adding an organic monomer the gel and polymerizing the organic monomer in-situ to form an organic polymer. The resulting composite has characteristics of both the parent organic and inorganic compounds.

    摘要翻译: 制备有机和无机化合物复合物的方法包括使金属醇盐和含硅化合物的混合溶液与催化剂反应以产生金属氧化物或复合金属氧化物的醇酸盐的步骤。 金属醇盐通过使至少一种金属与醇反应制备,并且通过将金属醇盐与含硅化合物混合来制备混合溶液。 由反应步骤产生酸酐,并将醇浸渍在铝酸盐的无机氧化物晶格结构内。 此外,制备有机和无机化合物的复合物的方法包括以下步骤:离心凝胶以从凝胶中分离任何醇以形成凝胶,加入有机单体凝胶并原位聚合有机单体以形成 有机聚合物。 所得复合材料具有母体有机和无机化合物的特征。

    Bipolar transistor, BiCMOS device, and method for fabricating thereof
    8.
    发明申请
    Bipolar transistor, BiCMOS device, and method for fabricating thereof 有权
    双极晶体管,BiCMOS器件及其制造方法

    公开(公告)号:US20070287234A1

    公开(公告)日:2007-12-13

    申请号:US11797071

    申请日:2007-04-30

    IPC分类号: H01L21/8249

    摘要: Provided are bipolar transistor, BiCMOS device and method of fabricating thereof, in which an existing sub-collector disposed beneath a collector of a SiGe HBT is removed and a collector plug disposed at a lateral side of the collector is approached to a base when fabricating a Si-based very high-speed device, whereby it is possible to fabricate the SiGe HBT and an SOI CMOS on a single substrate, reduce the size of the device and the number of masks to be used, and implement the device of high density, low power consumption, and wideband performance.

    摘要翻译: 提供了双极晶体管,BiCMOS器件及其制造方法,其中去除了设置在SiGe HBT的集电极下方的现有子集电极,并且设置在集电极的横向侧的集电极端子在制造时 基于Si的非常高速的器件,由此可以在单个衬底上制造SiGe HBT和SOI CMOS,减少器件的尺寸和使用的掩模的数量,并实现高密度的器件, 低功耗,宽带性能。

    Reference current generator
    9.
    发明申请
    Reference current generator 有权
    参考电流发生器

    公开(公告)号:US20060125460A1

    公开(公告)日:2006-06-15

    申请号:US11299188

    申请日:2005-12-09

    IPC分类号: G05F3/16 G05F3/20

    CPC分类号: G05F3/30 G05F3/262

    摘要: Provided is a low-reference-current generator that includes a circuit employing two feedback loops enabling it to operate even at a low voltage, has a high power supply rejection ratio (PSRR) to control power supply noise, and simply forms a voltage without a voltage-to-current converter used in a conventional general reference current generator. The reference current generator includes: a first voltage generator receiving a predetermined current and generating a first voltage that decreases as temperature increases; a second voltage generator generating a second voltage that increases as temperature increases; a first current generator generating a first current corresponding to the first voltage; a second current generator generating a second current corresponding to the second voltage; and a reference current generator receiving the first current and the second current and generating a reference current that is the sum of the first current and the second current.

    摘要翻译: 提供了一种低参考电流发生器,其包括使用两个反馈回路的电路,使得其能够在低电压下操作,具有高电源抑制比(PSRR)以控制电源噪声,并且简单地形成电压,而不需要 用于常规通用参考电流发生器的电压 - 电流转换器。 参考电流发生器包括:接收预定电流并产生随温度升高而降低的第一电压的第一电压发生器; 产生随着温度升高而增加的第二电压的第二电压发生器; 产生对应于第一电压的第一电流的第一电流发生器; 产生对应于第二电压的第二电流的第二电流发生器; 以及参考电流发生器,接收第一电流和第二电流,并产生作为第一电流和第二电流之和的参考电流。

    AUTOMATIC CALIBRATION OF FOURIER-DOMAIN OPTICAL COHERENCE TOMOGRAPHY SYSTEMS
    10.
    发明申请
    AUTOMATIC CALIBRATION OF FOURIER-DOMAIN OPTICAL COHERENCE TOMOGRAPHY SYSTEMS 有权
    FOURIER-DOMAIN光学相干系统的自动校准

    公开(公告)号:US20130128267A1

    公开(公告)日:2013-05-23

    申请号:US13813611

    申请日:2011-08-02

    IPC分类号: G01B9/02

    摘要: A method for calibrating a Fourier domain optical coherence tomography system includes receiving spectral data from an optical detector comprising a linear array of detector elements, each detector element having a position labeled n, wherein detected light was wavelength-dispersed across the linear array of detector elements; determining parameters of a preselected functional relationship between wave number, kn, corresponding to detector element n as a function of optical detector element n based on the spectral data; further receiving subsequent spectral data subsequent to the first-mentioned receiving, wherein detected light was wavelength-dispersed across the linear array of detector elements; converting the subsequent spectral data using the preselected functional relationship between wave number kn and optical detector element n to obtain converted spectral data; and performing an inverse Fourier transform of the converted spectral data to obtain a depth profile.

    摘要翻译: 用于校准傅立叶域光学相干断层摄影系统的方法包括从包括检测器元件的线性阵列的光学检测器接收光谱数据,每个检测器元件具有标记为n的位置,其中检测到的光被波长分散在检测器元件的线性阵列 ; 基于光谱数据确定与检测器元件n相对应的波数kn的预选功能关系的参数作为光检测器元件n的函数; 进一步接收在所述第一次接收之后的随后的光谱数据,其中检测的光被波长分散在检测器元件的线性阵列上; 使用波数kn和光检测器元件n之间的预选功能关系来转换随后的光谱数据,以获得转换的光谱数据; 并对所转换的光谱数据执行逆傅立叶变换以获得深度分布。