SYSTEMS AND METHODS FOR PROVIDING PROTECTION CIRCUITRY TO SELECTIVELY HANDLE MULTIPLE CABLE-TYPES THROUGH THE SAME PORT
First Claim
1. A method comprising:
- determining a cable is coupled to a port of an electronic device;
disconnecting a power-providing cable receive chip (“
Power Rx”
) of the electronic device from a non-power cable receive chip (“
Headset Rx”
) of the electronic device;
attempting to authenticate a non-power cable transmit chip (“
Headset Tx”
) of the cable; and
maintaining disconnection of the Power Rx in response to successfully authenticating the Headset Tx.
1 Assignment
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Accused Products
Abstract
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.
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Citations
21 Claims
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1. A method comprising:
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determining a cable is coupled to a port of an electronic device; disconnecting a power-providing cable receive chip (“
Power Rx”
) of the electronic device from a non-power cable receive chip (“
Headset Rx”
) of the electronic device;attempting to authenticate a non-power cable transmit chip (“
Headset Tx”
) of the cable; andmaintaining disconnection of the Power Rx in response to successfully authenticating the Headset Tx. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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a port operable to couple to a power-providing cable and a non-power providing cable; a power-providing cable receive chip (“
Power Rx”
) operable to communicate with a power-providing cable transmit chip (“
Power Tx”
) of the power-providing cable; anda processor operable to; determine when the port is coupled to the power-providing cable; determine when the port is coupled to the non-power providing cable; disconnect the Power Rx in response to determining the port is coupled to the non-power providing cable; and connect the Power Rx to the port in response to determining the port is coupled to the power-providing cable. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An electronic device comprising:
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a port; a power-providing cable receive chip (“
Power Rx”
);a non-power providing cable receive chip (“
Headset Rx”
); anda processor operable to; determine when a cable having a circuit is coupled to the port; and alternate between; attempting to authenticate the circuit of the cable with the Headset Rx; and attempting to authenticate the circuit of the cable with the Power Rx. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. Machine-readable media comprising machine-readable instructions recorded thereon for:
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determining when a cable is coupled to a port of an electronic device; disconnecting a power-providing cable receive chip (“
Power Rx”
) of the electronic device from a non-power cable receive chip (“
Headset Rx”
) of the electronic device;attempting to authenticate a non-power cable transmit chip (“
Headset Tx”
) of the cable; andmaintaining the disconnection of the Power Rx in response to successfully authenticating the Headset Tx. - View Dependent Claims (21)
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Specification