Patent ID: 7501792

Claim:
A charging-cable comprising a charger-connector for connecting the charging-cable to a mating USB connector in a charger; and a device-connector for connecting the charging-cable to a portable electronic device, where the charger-connector comprises USB-terminals arranged so that: a first USB-terminal is adapted to connect to a V BUS signal of a USB connector, a second USB-terminal is adapted to connect to a D − signal of the USB connector, a third USB-terminal is adapted to connect to a D + signal of the USB connector, and a fourth USB-terminal is adapted to connect to a ground signal of the USB connector; and where the device-connector comprises device-terminals arranged to be operatively connected to the portable electronic device so that a first device-terminal connects to a ground terminal and a second device-terminal connects to a charging terminal of the portable electronic device, where: the first USB-terminal is connected to one of the second or third USB-terminals via a first circuit so that the first USB-terminal can be operatively connected to the other of the second or third USB-terminals when the charger-connector is connected to an external charger comprising a second circuit that connects the second USB-terminal to the third USB-terminal; and the other of the second or third USB-terminals is connected to the second device-terminal via a third circuit so that the first USB-terminal can be operatively connected to the charging terminal of the portable electronic device via the first, second and third circuits.