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    • 2. 发明申请
    • SYSTEMS AND METHODS FOR PROVIDING PROTECTION CIRCUITRY TO SELECTIVELY HANDLE MULTIPLE CABLE-TYPES THROUGH THE SAME PORT
    • 用于提供保护电路选择性地通过相同端口处理多个电缆类型的系统和方法
    • WO2010104541A1
    • 2010-09-16
    • PCT/US2009/069043
    • 2009-12-21
    • APPLE INC.BHARGAVA, RishabhFARRAR, Doug
    • BHARGAVA, RishabhFARRAR, Doug
    • H01R13/703
    • H02J4/00H04M1/6058H04M1/72527Y10T307/766Y10T307/826
    • This is generally directed to providing protection circuitry to selectively handle power- providing cables and headset cables that can couple to the same port of an electronic device. In some embodiments, the device can include a Headset Rx chip to communicate with the headset cable and a Power Rx chip to communicate with the power-providing cable. As the Headset Rx chip and the Power Rx chip can be coupled to the same contact of the device's port, these chips may prevent one another from operating correctly or may damage one another. Accordingly, in some embodiments, it can be determined whether a headset cable or a power- providing cable is coupled to the device. When a headset cable is coupled to the device, the protection circuitry can disconnect the Power Rx chip. Similarly, when a power-providing cable is coupled to the device, the protection circuitry can disconnect the Headset Rx chip.
    • 这通常涉及提供保护电路以选择性地处理能够耦合到电子设备的相同端口的提供电力的电缆和耳机线缆。 在一些实施例中,设备可以包括与耳机线缆通信的耳机Rx芯片和与供电电缆通信的Power Rx芯片。 由于耳机Rx芯片和Power Rx芯片可以耦合到设备端口的相同触点,这些芯片可能会相互阻止,否则可能会相互损坏。 因此,在一些实施例中,可以确定耳机线缆或供电电缆是否耦合到设备。 当耳机电缆连接到设备时,保护电路可以断开Power Rx芯片。 类似地,当电源提供电缆耦合到设备时,保护电路可以断开耳机Rx芯片。