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    • 1. 发明申请
    • WIRELESS POWER TRANSFER IN-BAND COMMUNICATION SYSTEM
    • 无线电力传输带内通信系统
    • US20140314170A1
    • 2014-10-23
    • US14356607
    • 2013-10-25
    • William PlumbZhen WangZoran ZvonarPatrick Stanley RiehlAnand SatyamoorthyPhilip Frank TustinMediaTek Singapore Pte, Ltd.
    • William PlumbZhen WangZoran ZvonarPatrick Stanley RiehlAnand SatyamoorthyPhilip Frank Tustin
    • H04L1/00H04L25/49
    • H02J50/12H02J7/025H02J50/10H02J50/60H02J50/80H04B5/0037H04B5/0093H04L1/0045H04L1/0061H04L25/4904H04W52/0261
    • A wireless charging in-band communication system includes a transmitter module that formats a message using CRC calculation and attaches the results of the CRC calculation to the message for message error detection. The transmitter includes channel encoding for message error correction. A modulation module performs biphase modulation for DC balanced signals and impedance switching to change reflected impedance seen by the source. A synchronization module prepending the message with a synchronization sequence having Golay complementary codes. Moreover, the in-band communication includes a receiver module that receives the message from the transmitter module. The receiver module includes an impedance sensing circuit to detect changes in the reflected impedance of the transmitter module. The receiver module includes a front end filter used for pulse shaping and noise rejection. A preamble detection block includes a Golay complementary code correlator used for message detection, synchronization, and equalization coefficient estimation and selection. A decoding module performs biphase demodulation with error correction with a DC offset being estimated as the average value of the signal over the length of the message before channel decoding Also, the decoding module performs equalization, error correction channel decoding,and error detection (CRC).
    • 无线充电带内通信系统包括发射机模块,其使用CRC计算格式化消息,并将CRC计算的结果附加到用于消息错误检测的消息。 发射机包括消息纠错的信道编码。 调制模块对直流平衡信号进行双相调制,并进行阻抗切换,以改变源所见的反射阻抗。 一个同步模块,前置消息具有一个具有Golay补码的同步序列。 此外,带内通信包括从发射机模块接收消息的接收机模块。 接收器模块包括用于检测发射器模块的反射阻抗的变化的阻抗感测电路。 接收器模块包括用于脉冲整形和噪声抑制的前端滤波器。 前导码检测块包括用于消息检测,同步和均衡系数估计和选择的Golay互补码相关器。 解码模块执行纠错的双相解调,其中DC偏移被估计为在信道解码之前的消息的长度上的信号的平均值。另外,解码模块执行均衡,纠错信道解码和错误检测(CRC) 。
    • 5. 发明授权
    • Method for joint DC offset correction and channel coefficient estimation in a receiver
    • 接收机中联合DC偏移校正和信道系数估计的方法
    • US07266160B2
    • 2007-09-04
    • US10689330
    • 2003-10-20
    • Marko KocicLidwine MartinotZoran Zvonar
    • Marko KocicLidwine MartinotZoran Zvonar
    • H04L25/06
    • H04L25/062H04L25/0216H04L25/023H04L25/025
    • Although DC offset reduction schemes can be applied in the analog domain, the residual static DCO in baseband is still present, significantly influencing the performance of high-level modulation schemes employed by recent high-data-rate wireless communications standards. In order to achieve satisfactory performance, DCO compensation algorithms are required in the digital domain. One such algorithm was developed which is based on joint estimation of the Channel Impulse Response (CIR) and the static DCO and ensures satisfactory performance of EDGE modem with direct conversion radio architectures. A further modification of the joint estimation algorithm, the so-called “perturbed joint L”, results in further improvement in the performance of the EDGE equalizer in critical fading channels.
    • 虽然DC偏移降低方案可以应用在模拟域中,但基带中的残留静态DCO仍然存在,从而显着影响近来高数据速率无线通信标准采用的高级调制方案的性能。 为了达到令人满意的性能,数字领域需要DCO补偿算法。 开发了一种这样的算法,其基于通道脉冲响应(CIR)和静态DCO的联合估计,并且确保具有直接转换无线电架构的EDGE调制解调器的令人满意的性能。 联合估计算法(所谓的“扰动关节L”)的进一步修改导致EDGE均衡器在关键衰落信道中的性能的进一步改进。
    • 7. 发明授权
    • Wireless power transfer in-band communication system
    • 无线功率传输带内通信系统
    • US09363041B2
    • 2016-06-07
    • US14356607
    • 2013-10-25
    • William PlumbZhen WangZoran ZvonarPatrick Stanley RiehlAnand SatyamoorthyPhilip Frank TustinMediaTek Singapore Pte. Ltd.
    • William PlumbZhen WangZoran ZvonarPatrick Stanley RiehlAnand SatyamoorthyPhilip Frank Tustin
    • H04L27/10H04L1/00H04W52/02H04L25/49H02J7/02
    • H02J50/12H02J7/025H02J50/10H02J50/60H02J50/80H04B5/0037H04B5/0093H04L1/0045H04L1/0061H04L25/4904H04W52/0261
    • A wireless charging in-band communication system includes a transmitter module that formats a message using CRC calculation and attaches the results of the CRC calculation to the message for message error detection. The transmitter includes channel encoding for message error correction. A modulation module performs biphase modulation for DC balanced signals and impedance switching to change reflected impedance seen by the source. A synchronization module prepending the message with a synchronization sequence having Golay complementary codes. Moreover, the in-band communication includes a receiver module that receives the message from the transmitter module. The receiver module includes an impedance sensing circuit to detect changes in the reflected impedance of the transmitter module. The receiver module includes a front end filter used for pulse shaping and noise rejection. A preamble detection block includes a Golay complementary code correlator used for message detection, synchronization, and equalization coefficient estimation and selection. A decoding module performs biphase demodulation with error correction with a DC offset being estimated as the average value of the signal over the length of the message before channel decoding Also, the decoding module performs equalization, error correction channel decoding,and error detection (CRC).
    • 无线充电带内通信系统包括发射机模块,其使用CRC计算格式化消息,并将CRC计算的结果附加到用于消息错误检测的消息。 发射机包括用于消息纠错的信道编码。 调制模块对直流平衡信号进行双相调制,并进行阻抗切换,以改变源所见的反射阻抗。 一个同步模块,前置消息具有一个具有Golay补码的同步序列。 此外,带内通信包括从发射机模块接收消息的接收机模块。 接收器模块包括用于检测发射器模块的反射阻抗的变化的阻抗感测电路。 接收器模块包括用于脉冲整形和噪声抑制的前端滤波器。 前导码检测块包括用于消息检测,同步和均衡系数估计和选择的Golay互补码相关器。 解码模块执行纠错的双相解调,其中DC偏移被估计为在信道解码之前的消息的长度上的信号的平均值。另外,解码模块执行均衡,纠错信道解码和错误检测(CRC) 。