System and method for providing power through a reverse local data transfer connection
First Claim
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1. An apparatus comprising:
- a controller to set a first circuit path between a finite power source and a connector based on a condition, wherein the condition is to include detection of a connection of an interface between the connector and a port of a host by detecting a reception of a detection signal on a data line of the interface, and the controller is to generate a first control signal to set the first circuit path, in response to the detected detection signal on the data line, the first control signal to change a state of a switch to allow power to pass from the finite power source through the connector when coupled to the interface, the controller including signal lines that match and are to couple to signal lines of the interface, the signal lines of the interface to include a power line, at least two data lines and a ground line, and wherein the finite power source is to output power to the power line of the interface along the first circuit path.
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Abstract
A power source device supplies power to a host for charging a finite power source of the host. The power is supplied through an interface connecting the host device. The interface may be a Universal Serial Bus (USB) cable or another type of local connection cable.
33 Citations
29 Claims
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1. An apparatus comprising:
a controller to set a first circuit path between a finite power source and a connector based on a condition, wherein the condition is to include detection of a connection of an interface between the connector and a port of a host by detecting a reception of a detection signal on a data line of the interface, and the controller is to generate a first control signal to set the first circuit path, in response to the detected detection signal on the data line, the first control signal to change a state of a switch to allow power to pass from the finite power source through the connector when coupled to the interface, the controller including signal lines that match and are to couple to signal lines of the interface, the signal lines of the interface to include a power line, at least two data lines and a ground line, and wherein the finite power source is to output power to the power line of the interface along the first circuit path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
a host controller to set a first circuit path between a host port and a finite power source based on a condition, wherein the condition is to include detection of a connection of an interface between the port and a connector of a device by detecting a reception of a detection signal on a data line of the interface, and in response to detection of the detection signal on the data line, the host controller is to change a state of a first switch to allow power to pass along the first circuit path to a battery, the host controller including signal lines that match and are to couple to at least data lines of the interface, and wherein power from a power line of the interface is to pass along the first circuit path to charge the battery. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method comprising:
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detecting connection of an interface between a device and a host by detecting a detection signal on a data line of the interface; and setting a first circuit path in the device based on detection of the detection signal, and the setting of the first circuit path includes generating, in response to the detection signal, a first control signal to set the first circuit path, wherein the first control signal is to change a state of a switch to allow power to pass from a finite power source to be output to a power line of the interface through a connector of the device along the first circuit path, the power to pass through the power line of the interface to be used to charge a battery of the host. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A method comprising:
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detecting connection of an interface between a host and a device by detecting a detection signal on a data line of the interface; and setting a first circuit path in the host based on detection of the detection signal, and the setting of the first circuit path includes generating a first control signal to set the first circuit path in response to the detection signal, wherein the first control signal is to change a state of a switch to allow power from the interface to be transferred to a battery along the first circuit path, the power supplied from a finite power source of the device. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification