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1. 发明授权

US07957001B2 Wavelength-modulation spectroscopy method and apparatus 有权
标题翻译：波长调制光谱法和装置
公开(公告)号：US07957001B2
公开(公告)日：2011-06-07
申请号：US12249156
申请日：2008-10-10
申请人： Xiaoyong Liu , John McKinley Poole , Yufeng Huang , Daniel M. Stearns , Michael J. Gambuzza , Gene Smith Berkowitz , Anthony Kowal , Hejie Li , Shawn D. Wehe
发明人： Xiaoyong Liu , John McKinley Poole , Yufeng Huang , Daniel M. Stearns , Michael J. Gambuzza , Gene Smith Berkowitz , Anthony Kowal , Hejie Li , Shawn D. Wehe
IPC分类号： G01N21/31
CPC分类号： G01J3/4338 , G01N21/274 , G01N21/39 , G01N2021/399
摘要： In one embodiment of the spectroscopy method, the method comprises the steps of modulating the wavelength of a monochromatic radiation at a modulation amplitude and a modulation frequency; determining a first variable representative of an absorbance of an analyte in a sample; and demodulating by phase-sensitive detection the first variable at a harmonic of the modulation frequency to produce a harmonic spectrum of the analyte. In one embodiment of the spectroscopy apparatus, the apparatus comprises a laser diode integrated with a first photodetector configured to detect an intensity of a backward emission from the laser diode and act as a reference detector; a second photodetector configured to detect an intensity of laser radiation exiting a sample; and electronic circuitry coupled to the laser diode and the photodetectors, configured to acquire and process spectra of the sample. In another embodiment, the spectroscopy apparatus comprises a beam splitter configured to split the laser radiation into a first radiation portion and a second radiation portion and a first photodetector configured to detect the intensity of the first radiation portion.
摘要翻译：在光谱方法的一个实施例中，该方法包括以调制幅度和调制频率调制单色辐射的波长的步骤; 确定代表样品中分析物的吸光度的第一变量; 并通过相位敏感检测对调制频率的谐波处的第一变量进行解调，以产生分析物的谐波谱。在光谱设备的一个实施例中，该装置包括与第一光电检测器集成的激光二极管，其被配置为检测来自激光二极管的反向发射的强度并用作参考检测器; 第二光电检测器，其被配置为检测离开样品的激光辐射的强度; 以及耦合到所述激光二极管和所述光电检测器的电子电路，被配置为获取和处理所述样品的光谱。在另一个实施例中，光谱设备包括分束器，其配置成将激光辐射分裂成第一辐射部分和第二辐射部分，以及配置成检测第一辐射部分的强度的第一光电检测器。

2. 发明申请

US20100091278A1 WAVELENGTH-MODULATION SPECTROSCOPY METHOD AND APPARATUS 有权
标题翻译：波长调制光谱法和装置
公开(公告)号：US20100091278A1
公开(公告)日：2010-04-15
申请号：US12249156
申请日：2008-10-10
申请人： Xiaoyong Liu , John McKinley Poole , Yufeng Huang , Daniel M. Stearns , Michael J. Gambuzza , Gene Smith Berkowitz , Anthony Kowal , Hejie Li , Shawn D. Wehe
发明人： Xiaoyong Liu , John McKinley Poole , Yufeng Huang , Daniel M. Stearns , Michael J. Gambuzza , Gene Smith Berkowitz , Anthony Kowal , Hejie Li , Shawn D. Wehe
IPC分类号： G01N21/31
CPC分类号： G01J3/4338 , G01N21/274 , G01N21/39 , G01N2021/399
摘要： In one embodiment of the spectroscopy method, the method comprises the steps of modulating the wavelength of a monochromatic radiation at a modulation amplitude and a modulation frequency; determining a first variable representative of an absorbance of an analyte in a sample; and demodulating by phase-sensitive detection the first variable at a harmonic of the modulation frequency to produce a harmonic spectrum of the analyte. In one embodiment of the spectroscopy apparatus, the apparatus comprises a laser diode integrated with a first photodetector configured to detect an intensity of a backward emission from the laser diode and act as a reference detector; a second photodetector configured to detect an intensity of laser radiation exiting a sample; and electronic circuitry coupled to the laser diode and the photodetectors, configured to acquire and process spectra of the sample. In another embodiment, the spectroscopy apparatus comprises a beam splitter configured to split the laser radiation into a first radiation portion and a second radiation portion and a first photodetector configured to detect the intensity of the first radiation portion.
摘要翻译：在光谱方法的一个实施例中，该方法包括以调制幅度和调制频率调制单色辐射的波长的步骤; 确定代表样品中分析物的吸光度的第一变量; 并通过相位敏感检测对调制频率的谐波处的第一变量进行解调，以产生分析物的谐波谱。在光谱设备的一个实施例中，该装置包括与第一光电检测器集成的激光二极管，其被配置为检测来自激光二极管的反向发射的强度并用作参考检测器; 第二光电检测器，被配置为检测离开样品的激光辐射的强度; 以及耦合到所述激光二极管和所述光电检测器的电子电路，被配置为获取和处理所述样品的光谱。在另一个实施例中，光谱设备包括分束器，其配置成将激光辐射分裂成第一辐射部分和第二辐射部分，以及配置成检测第一辐射部分的强度的第一光电检测器。

3. 发明授权

US07139528B2 RF coupled data access arrangement circuit for telephony customer premise equipment 失效
标题翻译：用于电话客户端设备的RF耦合数据访问安排电路
公开(公告)号：US07139528B2
公开(公告)日：2006-11-21
申请号：US10452711
申请日：2003-06-02
申请人： Michael J. Gambuzza
发明人： Michael J. Gambuzza
IPC分类号： H04B7/00
CPC分类号： H04M1/725 , H04L12/66
摘要： A data access arrangement (DAA) circuit for an item of customer premise equipment (CPE, i.e., telephone terminal equipment) utilizes RF coupling across an isolation barrier between two sides of the DAA circuit.
摘要翻译：用于客户驻地设备（CPE，即电话终端设备）的数据访问装置（DAA）电路利用跨越DAA电路两侧之间的隔离屏障的RF耦合。

4. 发明授权

US5946394A Isolation amplifier with hook switch control 失效
标题翻译：隔离放大器带钩开关控制
公开(公告)号：US5946394A
公开(公告)日：1999-08-31
申请号：US873674
申请日：1997-06-12
申请人： Michael J. Gambuzza
发明人： Michael J. Gambuzza
IPC分类号： H04M1/738 , H04M11/00 , H04M11/06 , H04M1/00
CPC分类号： H04M11/06 , H04M1/738
摘要： An isolation amplifier circuit with hook switch control includes first and second amplifier stages optically isolated from and coupled to each other. A biasing circuit is optically coupled to the amplifier to provide a switchable prebias to the amplifier to allow the amplifier to process bipolar voltage input signals. A hook switch circuit is coupled to the biasing circuit such that as the bias condition is switched, the hook switch is opened or closed. The same optical coupling circuitry can be used to couple the first and second amplifier stages and to couple the biasing circuit to the hook switch circuit such that savings in circuit space and cost are realized.
摘要翻译：具有钩开关控制的隔离放大器电路包括彼此光隔离并耦合的第一和第二放大器级。偏置电路光耦合到放大器以向放大器提供可切换的前置放大器，以允许放大器处理双极性电压输入信号。挂钩开关电路耦合到偏置电路，使得当偏置条件被切换时，钩开关被打开或关闭。可以使用相同的光耦合电路来耦合第一和第二放大器级并将偏置电路耦合到挂钩开关电路，从而实现电路空间和成本的节省。

5. 发明公开

US20240280284A1 MONITORING OF FILTERS 审中-公开
公开(公告)号：US20240280284A1
公开(公告)日：2024-08-22
申请号：US18444196
申请日：2024-02-16
申请人： John P. Sanroma , Michael J. Gambuzza , Jason M. Sanroma
发明人： John P. Sanroma , Michael J. Gambuzza , Jason M. Sanroma
IPC分类号： F24F11/39 , F24F11/57 , F24F11/58 , F24F11/64 , F24F11/89 , F24F13/28 , F24F110/64 , F24F130/30
CPC分类号： F24F11/39 , F24F11/57 , F24F11/58 , F24F11/64 , F24F11/89 , F24F13/28 , F24F2110/64 , F24F2130/30
摘要： Filters are monitored. Color data is determined for a filter. A filter status for the filter is derived from the color data. An action is taken based on the filter status. The filter status may include a dirty status or an empty status for the filter. The action may include alerting a user based on the filter status. The filter may be illuminated prior to the determining of the color data for the filter.

6. 发明授权

US06226331B1 Data access arrangement for a digital subscriber line 有权
标题翻译：数字用户线的数据访问安排
公开(公告)号：US06226331B1
公开(公告)日：2001-05-01
申请号：US09404006
申请日：1999-09-23
申请人： Michael J. Gambuzza
发明人： Michael J. Gambuzza
IPC分类号： H04L2500
CPC分类号： H04L25/0266 , H04L5/0007 , H04L25/0272
摘要： An improved line interface device and an improved xDSL modem for use in connecting data communications equipment to a xDSL line is disclosed. The line interface device provides the required isolation between the xDSL line and the communications equipment using optical isolation or capacitive techniques, as well as provides the power necessary to produce the transmit signal levels required by the communications services by utilizing a switching power supply deriving its power from a source isolated from the line, and including a transformer for isolating the source from the xDSL line. By switching at high frequencies the size of the transformer can be sufficiently small so that the interface device and supply can be provided in accordance with small form factor requirements.
摘要翻译：公开了一种改进的线路接口设备和用于将数据通信设备连接到xDSL线路的改进的xDSL调制解调器。线路接口设备使用光隔离或电容技术在xDSL线路和通信设备之间提供所需的隔离，并且通过利用导出其功率的开关电源来提供产生通信服务所需的发射信号电平所需的功率来自与线隔离的源，并且包括用于将源与xDSL线隔离的变压器。通过在高频率切换，变压器的尺寸可以足够小，从而可以根据小尺寸要求提供接口装置和电源。

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