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    METHOD AND SYSTEM FOR GENERATING A RECEIVED SIGNAL STRENGTH INDICATOR (RSSI) VALUE FROM A RADIO FREQUENCY (RF) SIGNAL
    1.
    发明公开
    METHOD AND SYSTEM FOR GENERATING A RECEIVED SIGNAL STRENGTH INDICATOR (RSSI) VALUE FROM A RADIO FREQUENCY (RF) SIGNAL 审中-公开
    用于从射频（RF）信号生成接收的信号强度指示符（RSSI）值的方法和系统

    公开(公告)号：EP3226447A1

    公开(公告)日：2017-10-04

    申请号：EP17155230.0

    申请日：2017-02-08

    申请人： NXP B.V.

    发明人： DING, Jingfeng ,  KRANABENTER, Helmut ,  MENDEL, Stefan ,  HUEBER, Gernot ,  ZIPPER, Josef

    IPC分类号： H04B17/318 ,  H03M1/18

    CPC分类号： H04B17/318 ,  H03M1/181 ,  H04W52/245 ,  H04W52/52

    摘要： Embodiments of a method and a system for generating a received signal strength indicator (RSSI) value that corresponds to a radio frequency (RF) signal are disclosed. In an embodiment, a method for generating an RSSI value that corresponds to an RF signal involves obtaining an attenuation factor code in response to applying an automatic gain control (AGC) operation to the RF signal, obtaining an analog-to-digital converter (ADC) code in response to applying an ADC operation to a signal that results from the AGC operation, and combining the attenuation factor code and the ADC code to generate an RSSI value. Other embodiments are also described.

    摘要翻译： 公开了用于生成对应于射频（RF）信号的接收信号强度指示符（RSSI）值的方法和系统的实施例。 在一个实施例中，用于产生对应于RF信号的RSSI值的方法涉及响应于对RF信号应用自动增益控制（AGC）操作来获得衰减因子代码，获得模数转换器（ADC ）代码以响应于对由AGC操作产生的信号应用ADC操作，并且组合衰减因子代码和ADC代码以生成RSSI值。 还描述了其他实施例。

    Systems and methods for an auto-ranging temperature sensor
    2.
    发明公开
    Systems and methods for an auto-ranging temperature sensor 审中-公开
    对于一个自调节温度传感器的系统和方法

    公开(公告)号：EP2757357A3

    公开(公告)日：2014-08-20

    申请号：EP13189011.3

    申请日：2013-10-16

    申请人： Honeywell International Inc.

    发明人： Sundstrom, Lance LeRoy ,  Kirkpatrick, Shane Michael ,  Parmet, Darryl I.

    IPC分类号： G01K7/24 ,  H03M1/18

    CPC分类号： G01K15/005 ,  G01K7/24 ,  G01K2219/00 ,  H03M1/181

    摘要： Systems and methods for an auto-ranging temperature sensor are provided. In at least one embodiment, a system for sensing and measuring temperature comprises at least one analog signal amplifier that generates an amplified analog signal output based on an analog signal from at least one of a biased thermistor circuit and a calibration circuit and a digital to analog converter that generates an analog offset signal as an input to the at least one analog signal amplifier, wherein the analog offset signal shifts the amplified analog signal within an analog to digital converter input operating range when the amplified analog signal is equal to or greater than a limit of the analog to digital converter input operating range, wherein the analog offset signal is determined based on the magnitude of the amplified analog signal.

    Method and apparatus for extending the spurious free dynamic range of an analog-to-digital converter
    3.
    发明公开
    Method and apparatus for extending the spurious free dynamic range of an analog-to-digital converter 有权
    Bereichs eines模拟数字漫游器Verfahren undGerätzur Erweiterung desstörfreiendynamischen

    公开(公告)号：EP0967725A1

    公开(公告)日：1999-12-29

    申请号：EP99304453.6

    申请日：1999-06-08

    申请人： LUCENT TECHNOLOGIES INC.

    发明人： Myer, robert Evan ,  Patel, Mohan ,  Wen, Jack Chi-Chieh

    IPC分类号： H03M1/08

    CPC分类号： H03M1/0614 ,  H03M1/14 ,  H03M1/181

    摘要： An A/D system (10) provides an expanded SFDR when compared to the SFDR of individual A/D(s) that make up the A/D system. In response to an analog input signal(s) whose amplitude would result in a narrower SFDR for a first A/D (12), the A/D system uses an amplitude adjuster (14) which receives the analog input signal and produces an amplitude-limited signal with resulting signal distortion (S + D) to the first A/D (12). By amplitude-limiting the analog input signal, the A/D system produces the resulting signal distortion but reduces or "clips" the amplitude of the analog input signal, thereby improving the SFDR performance of the first A/D by reducing the spurious distortion produced by the first A/D. The signal distortion (D) resulting from the amplitude adjustment is routed to a second A/D (15). The first A/D converts the amplitude-limited analog signal to a digital signal (S 1 + D 1 ) with an expanded SFDR due to the lower amplitude of the adjusted analog signal. The second A/D (15) receives the portion of the analog input signal removed by clipping which can be referred to as the signal distortion (D). The second A/D converts the signal distortion, which typically has a lower amplitude than the adjusted analog signal, to a digital signal (D1) with at least an acceptable SFDR. The A/D system combines (16) the resulting digital signals from the first and second A/Ds to produce the desired converted digital signal with an extended SFDR. The SFDR is extended because the relative difference is increased between the amplitudes of the digital output signal and the spurious distortion when compared to the amplitudes of the digital output signal and the spurious distortion if the analog input signal has been converted by the first A/D without amplitude adjustment.

    摘要翻译： 与构成A / D系统的单个A / D的SFDR相比，A / D系统（10）提供扩展的SFDR。 响应于其幅度将导致第一A / D（12）的较窄SFDR的模拟输入信号，A / D系统使用幅度调节器（14），其接收模拟输入信号并产生幅度 限制信号，并产生信号失真（S + D）到第一个A / D（12）。 通过对模拟输入信号进行幅度限幅，A / D系统产生结果信号失真，但会降低或“钳制”模拟输入信号的幅度，从而通过减少产生的杂散失真来提高第一个A / D的SFDR性能 通过第一个A / D。 由幅度调整产生的信号失真（D）被路由到第二个A / D（15）。 由于调整后的模拟信号的振幅较低，第一个A / D将幅度受限的模拟信号转换为具有扩展SFDR的数字信号（S <1> D <1>）。 第二个A / D（15）接收可以被称为信号失真（D）的通过削波去除的模拟输入信号的部分。 第二个A / D将通常具有比调节的模拟信号更低的幅度的信号失真转换成具有至少可接受的SFDR的数字信号（D1）。 A / D系统组合（16）来自第一和第二A / D的结果数字信号，以产生具有扩展SFDR的所需转换数字信号。 SFDR被扩展，因为如果模拟输入信号已被第一个A / D转换，则与数字输出信号的幅度相比，数字输出信号的幅度和虚假失真之间的相对差异增加 无幅度调整。

    VERFAHREN ZUR MESSUNG ELEKTRISCHER LEISTUNG
    9.
    发明授权
    VERFAHREN ZUR MESSUNG ELEKTRISCHER LEISTUNG 失效
    测量电力的过程

    公开(公告)号：EP0019621B1

    公开(公告)日：1985-04-03

    申请号：EP79901005.3

    申请日：1979-09-05

    申请人： LGZ LANDIS & GYR ZUG AG

    发明人： STEINLE, Benedikt ,  SCHNEIDER, Gernot ,  NUENLIST, Hans

    IPC分类号： G01R21/00 ,  H03M1/86

    CPC分类号： G01R21/133 ,  G01R21/127 ,  H03M1/181

    摘要： A first measuring signal (u(t)) proportional to the voltage and a second measuring signal proportional to the current are compared, in a comparator, with a periodic reference signal (Ur(t)). In each half-period of the reference signal (Ur(t)) is established, by means of a sampling pulse count a digital value corresponding to the instantaneous value ((Alpha)u1; (Alpha)u2) of the first measuring signal (u(t)) at the time (P1; P2) when it is equal to that of the reference signal (Ur(t)) and a digital value corresponding to the instantaneous value of the second measuring signal at the time when it is equal to that of the reference signal and both these values are multiplied between each other. In an alternative, a digital value corresponding to the mean value ((Alpha)U1; (Alpha)U2) of the first measuring signal (u(t)) and a digital value corresponding to the mean value of the second measuring signal are established and multiplied between each other, within each period (Tr) of the reference signal (Ur(t)) as well as within each period (T'r) and compassing the second half period as the following first half period of the reference signal. The doubling of the frequency at which the values are established is thereby provided, leading to a division by four of the measuring errors.