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专利名称：WIRELESS POWER TRANSFER IN-BAND
COMMUNICATION SYSTEM
发明人：PLUMB, WILLIAM,WANG, ZHEN,ZVONAR,
ZORAN,RIEHL, PATRICKSTANLEY,SATYAMOORTHY,ANAND,TUSTIN, PHILIP FRANK
申请号：EP13848848申请日：20131025公开号：EP2912748A4公开日：20160629
摘要：A wireless charging in-band communication system includes a transmittermodule that formats a message using CRC calculation and attaches the results of theCRC calculation to the message for message error detection. The transmitter includeschannel encoding for message error correction. A modulation module performs biphasemodulation for DC balanced signals and impedance switching to change reflectedimpedance seen by the source. A synchronization module prepending the message with asynchronization sequence having Golay complementary codes. Moreover, the in-bandcommunication includes a receiver module that receives the message from the
transmitter module. The receiver module includes an impedance sensing circuit to detectchanges in the reflected impedance of the transmitter module. The receiver moduleincludes a front end filter used for pulse shaping and noise rejection. A preambledetection block includes a Golay complementary code correlator used for messagedetection, synchronization, and equalization coefficient estimation and selection. A
decoding module performs biphase demodulation with error correction with a DC offsetbeing estimated as the average value of the signal over the length of the messagebefore channel decoding Also, the decoding module performs equalization, errorcorrection channel decoding,and error detection (CRC).
申请人：MEDIATEK SINGAPORE PTE. LTD.
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