Receiving circuit, transmitting circuit, micro-controller and method for power line carrier communication
    1.
    发明授权
    Receiving circuit, transmitting circuit, micro-controller and method for power line carrier communication 有权
    电力线载波通信接收电路,发送电路,微控制器及方法

    公开(公告)号:US08654897B2

    公开(公告)日:2014-02-18

    申请号:US13609240

    申请日:2012-09-10

    CPC classification number: H04M11/066 H04B3/542

    Abstract: A receiving circuit, a transmitting circuit, a micro-controller, and a method for power line carrier communication. The receiving circuit includes: an analog amplifier, a receiving filter, an analog-to-digital converter, a digital mixer, a digital filter, and a digital demodulator connected successively. The transmitting circuit includes: a digital modulator, a gain controller, a digital-to-analog converter, a transmitting filter, and a transmitting amplifier connected successively. The micro-controller includes a central processor and the receiving circuit or the transmitting circuit. The method for power line carrier communication can be implemented based on the receiving circuit or the micro-controller. The receiving circuit, the transmitting circuit, the micro-controller, and the method for power line carrier communication provided by present invention solve the defect of supporting only one modulation or demodulation mode in a conventional power line carrier communication system, and can process a power line carrier signal in different modulation or demodulation modes.

    Abstract translation: 接收电路,发送电路,微控制器和电力线载波通信的方法。 接收电路包括:连续连接的模拟放大器,接收滤波器,模数转换器,数字混频器,数字滤波器和数字解调器。 发送电路包括:数字调制器,增益控制器,数 - 模转换器,发送滤波器和连续连接的发送放大器。 微控制器包括中央处理器和接收电路或发射电路。 电力线载波通信的方法可以基于接收电路或微控制器实现。 本发明提供的接收电路,发射电路,微控制器和电力线载波通信方法解决了传统电力线载波通信系统中仅支持一种调制或解调模式的缺陷,并且可以处理功率 线载波信号在不同的调制或解调模式。

    Micro-controller, processing method and device for power line carrier signal reception
    2.
    发明授权
    Micro-controller, processing method and device for power line carrier signal reception 有权
    微控制器,电源线载波信号接收的处理方法和装置

    公开(公告)号:US08649468B2

    公开(公告)日:2014-02-11

    申请号:US13609245

    申请日:2012-09-10

    CPC classification number: H04B3/542

    Abstract: The present invention provides a micro-controller, a processing method and device for power line carrier signal reception, where the method includes: an analog mixer mixes received power line carrier signals, an analog filter filters the mixed power line carrier signals, an analog-to-digital converter converts the filtered signals, a digital mixer mixes converted signals, a digital filter filters the mixed signals and a digital demodulator demodulates the filtered signals to obtain base band data. The present invention also provides a corresponding device and a micro-controller including the device. The technical solution of the present invention can modulate the carrier signals of any frequency to a fixed frequency through two-stage frequency mixing, so that demodulation of power line carrier signals with any frequency is possible.

    Abstract translation: 本发明提供了一种用于电力线载波信号接收的微控制器,处理方法和装置,其中所述方法包括:模拟混频器混合接收到的电力线载波信号,模拟滤波器对混合电力线载波信号进行滤波, 数字转换器转换滤波后的信号,数字混频器混合转换的信号,数字滤波器对混合信号进行滤波,并且数字解调器解调滤波后的信号以获得基带数据。 本发明还提供了包括该装置的相应装置和微控制器。 本发明的技术方案可以通过两级混频将任何频率的载波信号调制到固定频率,从而可以对具有任何频率的电力线载波信号进行解调。

    MICRO-CONTROLLER, PROCESSING METHOD AND DEVICE FOR POWER LINE CARRIER SIGNAL RECEPTION
    4.
    发明申请
    MICRO-CONTROLLER, PROCESSING METHOD AND DEVICE FOR POWER LINE CARRIER SIGNAL RECEPTION 有权
    微控制器,用于电力线载波信号接收的处理方法和装置

    公开(公告)号:US20130003900A1

    公开(公告)日:2013-01-03

    申请号:US13609245

    申请日:2012-09-10

    CPC classification number: H04B3/542

    Abstract: The present invention provides a micro-controller, a processing method and device for power line carrier signal reception, where the method includes: an analog mixer mixes received power line carrier signals, an analog filter filters the mixed power line carrier signals, an analog-to-digital converter converts the filtered signals, a digital mixer mixes converted signals, a digital filter filters the mixed signals and a digital demodulator demodulates the filtered signals to obtain base band data. The present invention also provides a corresponding device and a micro-controller including the device. The technical solution of the present invention can modulate the carrier signals of any frequency to a fixed frequency through two-stage frequency mixing, so that demodulation of power line carrier signals with any frequency is possible.

    Abstract translation: 本发明提供了一种用于电力线载波信号接收的微控制器,处理方法和装置,其中所述方法包括:模拟混频器混合接收到的电力线载波信号,模拟滤波器对混合电力线载波信号进行滤波, 数字转换器转换滤波后的信号,数字混频器混合转换的信号,数字滤波器对混合信号进行滤波,并且数字解调器解调滤波后的信号以获得基带数据。 本发明还提供了包括该装置的相应装置和微控制器。 本发明的技术方案可以通过两级混频将任何频率的载波信号调制到固定频率,从而可以对具有任何频率的电力线载波信号进行解调。

    Automatic power-off protection apparatus
    6.
    发明授权
    Automatic power-off protection apparatus 失效
    自动断电保护装置

    公开(公告)号:US07684164B2

    公开(公告)日:2010-03-23

    申请号:US11773980

    申请日:2007-07-06

    CPC classification number: H02H3/32

    Abstract: An automatic power-off protection apparatus includes an alternating current (AC) input; an AC output connected to the AC input via power wires that comprises a naught wire and a live wire; a switching unit for enabling and disabling a connection between the AC input and the AC output; a first pair of coupling coils for producing a first induced AC voltage; a second pair of coupling coil for a second induced AC voltage; an operational amplifier for amplifying a voltage difference between induced voltages across the first secondary coil and the second secondary coil; a first and second comparator for comparing the amplified voltage difference with a first reference voltage and a second reference voltage respectively. The automatic power-off protection apparatus cuts off the path between the AC input and the AC output when detecting current leaks.

    Abstract translation: 自动断电保护装置包括交流(AC)输入; 经由电源线连接到AC输入的AC输出,该电源线包括无电线和带电线; 用于启用和禁用AC输入和AC输出之间的连接的切换单元; 用于产生第一感应AC电压的第一对耦合线圈; 用于第二感应AC电压的第二对耦合线圈; 用于放大跨越第一次级线圈和第二次级线圈的感应电压之间的电压差的运算放大器; 用于分别比较放大的电压差与第一参考电压和第二参考电压的第一和第二比较器。 当检测到电流泄漏时,自动断电保护装置切断交流输入和交流输出之间的路径。

    Apparatus and methods for performing collision resolution for digital control channels
    7.
    发明授权
    Apparatus and methods for performing collision resolution for digital control channels 有权
    用于数字控制通道执行冲突解决的装置和方法

    公开(公告)号:US06463047B1

    公开(公告)日:2002-10-08

    申请号:US09138965

    申请日:1998-08-24

    CPC classification number: H04W74/0841 H04L25/0238 H04W52/24

    Abstract: An apparatus for performing collision resolution in a digital control channel which includes at least two antennas for receiving interfering signals, wherein each of the signals is associated with a network user, and a processor for processing the signals received by the antennas. The processor performs blind channel estimate calculations on the interfering signals to obtain channel information and to obtain a second signal. The second signal is selected for processing by a communication network.

    Abstract translation: 一种用于在数字控制信道中执行冲突解决的装置,其包括用于接收干扰信号的至少两个天线,其中每个信号与网络用户相关联,以及处理器,用于处理由天线接收的信号。 处理器对干扰信号执行盲信道估计计算,以获得信道信息并获得第二信号。 第二信号被选择用于通信网络进行处理。

    TDMA single antenna co-channel interference cancellation
    8.
    发明授权
    TDMA single antenna co-channel interference cancellation 有权
    TDMA单天线同频干扰消除

    公开(公告)号:US06249518B1

    公开(公告)日:2001-06-19

    申请号:US09130312

    申请日:1998-08-07

    Applicant: Jian Cui

    Inventor: Jian Cui

    CPC classification number: H04B7/005 H04L25/03006

    Abstract: A demodulator, within a receiver attached to a single antenna, that cancels co-channel interference within a time division multiple access (TDMA) communication system is disclosed. The demodulator takes as input a series of received signals comprising an information signal and a co-channel interference signal, both using the &pgr;/4-differential quadrature phase shift keying (DQPSK) modulation protocol. During a training period, in which the information signals corresponds to a known SYNC word, the demodulator estimates the fading coefficients corresponding to the information and interference signals. After the completion of the training period, the demodulator uses these estimates to generate accurate estimations for future information and interference signals corresponding to future data received signals. Therefore, the information signal has been essentially separated from the co-channel interference signal and can be demodulated with a lower bit error rate (BER) than previous demodulation techniques under these circumstances.

    Abstract translation: 公开了一种在时分多址(TDMA)通信系统内消除同信道干扰的解调器,该解调器在连接到单个天线的接收机内。 解调器使用pi / 4-差分正交相移键控(DQPSK)调制协议,将包括信息信号和同信道干扰信号的一系列接收信号作为输入。 在信息信号对应于已知SYNC字的训练期间,解调器估计对应于信息和干扰信号的衰落系数。 在训练周期完成之后,解调器使用这些估计来对将来的数据接收信号对应的未来信息和干扰信号产生准确的估计。 因此,信息信号已经基本上与同信道干扰信号分离,并且在这些情况下可以以比以前的解调技术更低的误码率(BER)进行解调。

    Maximal correlation symbol estimation demodulator
    9.
    发明授权
    Maximal correlation symbol estimation demodulator 失效
    最大相关符号估计解调器

    公开(公告)号:US6111910A

    公开(公告)日:2000-08-29

    申请号:US989265

    申请日:1997-12-11

    CPC classification number: H04B7/0854 H04L1/06

    Abstract: A maximal correlation symbol estimation (MCSE) method for estimating the symbols that are modulating an information signal component of a received signal, which can be applied to received signals that additionally contain an interference signal component, is disclosed. The method is achieved by correlating the received signal with all possible reference signals, each reference signal being one of a closed set of all possible information signals recognized by the given digital modulation scheme, and selecting as an estimate of the information signal the reference signal whose correlation with the received signal most closely resembles a weighted average of correlations between previously estimated information signals and their corresponding received signals. Demodulators that implement this method are adapted to perform many functions, including the estimation of symbols modulating frequency modulated (FM) received signals prior to the signals being FM demodulated. The embodiment of the MCSE demodulator adapted to carry out this last function, is designed to reduce inter-symbol interference caused by filter responses in the transmitter and receiver, and to permit each symbol to modulate a non-integer average number of signal samples.

    Abstract translation: 公开了一种用于估计正在调制接收信号的信息信号分量的符号的最大相关符号估计(MCSE)方法,其可应用于另外包含干扰信号分量的接收信号。 该方法通过将接收到的信号与所有可能的参考信号进行相关来实现,每个参考信号是由给定的数字调制方案识别的所有可能的信息信号的闭合集合之一,并且将信息信号的估计选择为参考信号, 与接收信号的相关性最接近地类似于先前估计的信息信号与其对应的接收信号之间的相关性的加权平均。 实现该方法的解调器适于执行许多功能,包括在FM解调信号之前对调制频率调制(FM)接收信号的符号的估计。 适于执行该最后功能的MCSE解调器的实施例被设计为减少由发射机和接收机中的滤波器响应引起的符号间干扰,并且允许每个符号调制非整数平均数的信号样本。

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