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    • 7. 发明申请
    • Energy Harvesting Bidirectional Audio Interface
    • 能量收集双向音频接口
    • US20160055478A1
    • 2016-02-25
    • US14463455
    • 2014-08-19
    • Square, Inc.
    • Lukas Skoog
    • G06Q20/32G06K7/08G06Q20/20G06K7/00
    • G06Q20/3272G06Q20/20G06Q20/204G06Q20/322G07F7/0873G07F7/0886
    • A payment card reader connected to an audio port of a mobile computing device may include a card interface, the card interface configured to read data from a payment card; a TRRS connector to couple the payment card reader with the mobile computing device; and an audio interface circuit coupled with the TRRS connector. The audio interface circuit may include a communication circuit configured to transmit data to and receive data from the mobile computing device via the TRRS connector and an energy harvesting circuit configured to receive an audio signal via the TRRS connector, to harvest energy from the audio signal, and to provide energy to other components of the card reader.
    • 连接到移动计算设备的音频端口的支付卡读取器可以包括卡接口,该卡接口被配置为从支付卡读取数据; 用于将支付卡读卡器与移动计算设备耦合的TRRS连接器; 以及与TRRS连接器耦合的音频接口电路。 音频接口电路可以包括通信电路,其被配置为经由TRRS连接器向移动计算设备发送数据并从数据接收数据;以及能量收集电路,其经配置以经由TRRS连接器接收音频信号,以从音频信号收集能量, 并向读卡器的其他部件提供能量。