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    Demodulator and Method for Demodulating a Modulated Carrier Signal
    1.
    发明申请
    Demodulator and Method for Demodulating a Modulated Carrier Signal 有权
    解调器和调制载波信号的方法

    公开(公告)号：US20110244811A1

    公开(公告)日：2011-10-06

    申请号：US12755094

    申请日：2010-04-06

    申请人： Walter Kargl ,  Edmund Ehrlich

    发明人： Walter Kargl ,  Edmund Ehrlich

    IPC分类号： H04B1/06 ,  H04L27/06 ,  H04B1/38

    CPC分类号： H04L25/068 ,  H04L27/2338

    摘要： A demodulator includes a sampler configured to sample a plurality of first amplitude values of a modulated carrier signal using a constant sampling frequency and a plurality of second amplitude values of the modulated carrier signal at different times using the same constant sampling frequency. The constant sampling frequency is equal to a carrier frequency of the modulated carrier signal with a tolerance of +/−1% of the carrier frequency.

    摘要翻译： 解调器包括采样器，其被配置为使用相同的恒定采样频率使用恒定采样频率和不同时间的调制载波信号的多个第二振幅值来对调制载波信号的多个第一振幅值进行采样。 恒定采样频率等于载波频率的+/- 1％的公差的调制载波信号的载波频率。

    Contactless data reception using a cancellation circuit
    2.
    发明授权
    Contactless data reception using a cancellation circuit 有权
    使用消除电路进行非接触式数据接收

    公开(公告)号：US08905310B2

    公开(公告)日：2014-12-09

    申请号：US12415070

    申请日：2009-03-31

    申请人： Walter Kargl ,  Edmund Ehrlich ,  Matthias Emsenhuber

    发明人： Walter Kargl ,  Edmund Ehrlich ,  Matthias Emsenhuber

    IPC分类号： G06K7/00 ,  G06K7/10 ,  H04B5/00 ,  G06K19/07

    CPC分类号： H04B5/0081 ,  G06K7/10178 ,  G06K7/10346 ,  G06K19/0723

    摘要： A contactless device including a transmission antenna configured to transmit a transmission signal; a pickup antenna configured to detect a field generated by a pickup signal, which comprises a response signal transmitted from another contactless device and the transmission signal; and a cancellation circuit configured to subtract a voltage of the transmission antenna from a voltage of the pickup antenna.

    摘要翻译： 一种非接触式装置，包括：发送天线，被配置为发送发送信号; 拾取天线，被配置为检测由拾取信号产生的场，所述拾取信号包括从另一非接触装置发送的响应信号和所述发送信号; 以及消除电路，被配置为从所述拾取天线的电压中减去所述发射天线的电压。

    Passive RFID transponder and RFID reader
    3.
    发明授权
    Passive RFID transponder and RFID reader 有权
    无源RFID应答器和RFID读写器

    公开(公告)号：US08616456B2

    公开(公告)日：2013-12-31

    申请号：US13040421

    申请日：2011-03-04

    申请人： Walter Kargl ,  Edmund Ehrlich

    发明人： Walter Kargl ,  Edmund Ehrlich

    IPC分类号： G06K19/06

    CPC分类号： H04L27/04

    摘要： A passive RFID transponder includes a coder and a modulator. The coder generates a digital coded data stream based on a digital data stream to be transmitted. The digital coded data stream includes an initialization bit sequence having a maximum data frequency of the digital coded data stream. Furthermore, the digital coded data stream changes its value at the latest after a predefined number of bits. The modulator modulates an amplitude of a carrier signal with the digital coded data stream to provide an amplitude-modulated coded signal.

    摘要翻译： 无源RFID应答器包括编码器和调制器。 编码器基于要发送的数字数据流生成数字编码数据流。 数字编码数据流包括具有数字编码数据流的最大数据频率的初始化位序列。 此外，数字编码数据流在预定义的位数之后最迟改变其值。 调制器利用数字编码数据流调制载波信号的振幅，以提供幅度调制的编码信号。

    Passive RFID Transponder and RFID Reader
    4.
    发明申请
    Passive RFID Transponder and RFID Reader 有权
    无源RFID应答器和RFID读写器

    公开(公告)号：US20110215158A1

    公开(公告)日：2011-09-08

    申请号：US13040421

    申请日：2011-03-04

    申请人： Walter Kargl ,  Edmund Ehrlich

    发明人： Walter Kargl ,  Edmund Ehrlich

    IPC分类号： G06K19/073 ,  H03K7/02 ,  H03D1/00

    CPC分类号： H04L27/04

    摘要： A passive RFID transponder includes a coder and a modulator. The coder generates a digital coded data stream based on a digital data stream to be transmitted. The digital coded data stream includes an initialization bit sequence having a maximum data frequency of the digital coded data stream. Furthermore, the digital coded data stream changes its value at the latest after a predefined number of bits. The modulator modulates an amplitude of a carrier signal with the digital coded data stream to provide an amplitude-modulated coded signal.

    摘要翻译： 无源RFID应答器包括编码器和调制器。 编码器基于要发送的数字数据流生成数字编码数据流。 数字编码数据流包括具有数字编码数据流的最大数据频率的初始化位序列。 此外，数字编码数据流在预定义的位数之后最迟改变其值。 调制器利用数字编码数据流调制载波信号的振幅，以提供幅度调制的编码信号。

    CONTACTLESS DATA RECEPTION
    5.
    发明申请
    CONTACTLESS DATA RECEPTION 有权
    无接触数据接收

    公开(公告)号：US20100243737A1

    公开(公告)日：2010-09-30

    申请号：US12415070

    申请日：2009-03-31

    申请人： Walter Kargl ,  Edmund Ehrlich ,  Matthias Emsenhuber

    发明人： Walter Kargl ,  Edmund Ehrlich ,  Matthias Emsenhuber

    IPC分类号： G06K7/01

    CPC分类号： H04B5/0081 ,  G06K7/10178 ,  G06K7/10346 ,  G06K19/0723

    摘要： A contactless device including a transmission antenna configured to transmit a transmission signal; a pickup antenna configured to detect a field generated by a pickup signal, which comprises a response signal transmitted from another contactless device and the transmission signal; and a cancellation circuit configured to subtract a voltage of the transmission antenna from a voltage of the pickup antenna.

    摘要翻译： 一种非接触式装置，包括：发送天线，被配置为发送发送信号; 拾取天线，被配置为检测由拾取信号产生的场，所述拾取信号包括从另一个非接触设备发送的响应信号和所述发送信号; 以及消除电路，被配置为从所述拾取天线的电压中减去所述发射天线的电压。

    Demodulator and method for demodulating a carrier signal
    6.
    发明授权
    Demodulator and method for demodulating a carrier signal 有权
    用于解调载波信号的解调器和方法

    公开(公告)号：US08625727B2

    公开(公告)日：2014-01-07

    申请号：US12753450

    申请日：2010-04-02

    申请人： Walter Kargl ,  Edmund Ehrlich

    发明人： Walter Kargl ,  Edmund Ehrlich

    IPC分类号： H04L7/00 ,  H04B5/00

    CPC分类号： H04L27/0014 ,  H03M1/1255 ,  H04L2027/0036 ,  H04L2027/0067

    摘要： A demodulator includes a sampler and a trigger unit. The sampler is configured to sample a carrier signal based on a trigger signal to obtain a demodulated signal. The trigger unit is configured to detect a zero crossing of the carrier signal or an extreme value of an amplitude of the carrier signal. Further, the trigger unit is configured to provide the trigger signal based on the detected zero crossing or the detected extreme value, so that the carrier signal is sampled by the sampler with a predefined phase shift to the detected zero crossing or the detected extreme value. The predefined phase shift is larger than 30° plus an integer multiple of 90° and lower than 60° plus the same integer multiple of 90° in reference to the carrier signal.

    摘要翻译： 解调器包括采样器和触发单元。 采样器被配置为基于触发信号对载波信号进行采样以获得解调信号。 触发单元被配置为检测载波信号的零交叉或载波信号的幅度的极值。 此外，触发单元被配置为基于检测到的过零点或检测到的极值来提供触发信号，使得载波信号被采样器采样到预定的相移到检测到的过零点或检测到的极值。 相对于载波信号，预定义的相移大于30°加上90°的整数倍，低于60°加上90°的相同整数倍。

    Demodulator and method for demodulating a modulated carrier signal
    7.
    发明授权
    Demodulator and method for demodulating a modulated carrier signal 有权
    用于解调调制载波信号的解调器和方法

    公开(公告)号：US08792846B2

    公开(公告)日：2014-07-29

    申请号：US12755094

    申请日：2010-04-06

    申请人： Walter Kargl ,  Edmund Ehrlich

    发明人： Walter Kargl ,  Edmund Ehrlich

    IPC分类号： H04B1/18 ,  H04L27/233 ,  H04L25/06

    CPC分类号： H04L25/068 ,  H04L27/2338

    摘要： A demodulator includes a sampler configured to sample a plurality of first amplitude values of a modulated carrier signal using a constant sampling frequency and a plurality of second amplitude values of the modulated carrier signal at different times using the same constant sampling frequency. The constant sampling frequency is equal to a carrier frequency of the modulated carrier signal with a tolerance of +/−1% of the carrier frequency.

    摘要翻译： 解调器包括采样器，其被配置为使用相同的恒定采样频率使用恒定采样频率和不同时间的调制载波信号的多个第二振幅值来对调制载波信号的多个第一振幅值进行采样。 恒定采样频率等于载波频率的+/- 1％的公差的调制载波信号的载波频率。

    Demodulator and Method for Demodulating a Carrier Signal
    9.
    发明申请
    Demodulator and Method for Demodulating a Carrier Signal 有权
    解调器和解调载波信号的方法

    公开(公告)号：US20110243200A1

    公开(公告)日：2011-10-06

    申请号：US12753450

    申请日：2010-04-02

    申请人： Walter Kargl ,  Edmund Ehrlich

    发明人： Walter Kargl ,  Edmund Ehrlich

    IPC分类号： H04B1/40 ,  H03D99/00

    CPC分类号： H04L27/0014 ,  H03M1/1255 ,  H04L2027/0036 ,  H04L2027/0067

    摘要： A demodulator includes a sampler and a trigger unit. The sampler is configured to sample a carrier signal based on a trigger signal to obtain a demodulated signal. The trigger unit is configured to detect a zero crossing of the carrier signal or an extreme value of an amplitude of the carrier signal. Further, the trigger unit is configured to provide the trigger signal based on the detected zero crossing or the detected extreme value, so that the carrier signal is sampled by the sampler with a predefined phase shift to the detected zero crossing or the detected extreme value. The predefined phase shift is larger than 30° plus an integer multiple of 90° and lower than 60° plus the same integer multiple of 90° in reference to the carrier signal.

    摘要翻译： 解调器包括采样器和触发单元。 采样器被配置为基于触发信号对载波信号进行采样以获得解调信号。 触发单元被配置为检测载波信号的零交叉或载波信号的幅度的极值。 此外，触发单元被配置为基于检测到的过零点或检测到的极值来提供触发信号，使得载波信号被采样器采样到预定的相移到检测到的过零点或检测到的极值。 相对于载波信号，预定义的相移大于30°加上90°的整数倍，低于60°加上90°的相同整数倍。