Sony Ericsson Mobile Communications Ab

Sony Mobile Communications Inc.

Henrik Börjeson

Magnus Abrahamsson

Jan Nilsson

A low-power voice command detection method uses an audio monitoring device to capture sound. The captured sound is analyzed in steps to determine if it fulfills a number of criteria regarding sound level, voice content and identifiable voice commands. For each step the processing is more complex and power demanding. A threshold between the first and subsequent steps is used to gate further processing. This threshold is dynamically adjusted, based on the outcome of the analysis, to avoid unnecessary processing and increase system performance.

Low-power voice command detector

A charging-cable includes a charger-connector for connecting the charging-cable to a USB connector in a charger, and a device-connector for connecting the charging-cable to a portable device. The charger-connector includes USB-terminals arranged so that a first USB-terminal can connect to the Vsignal, a second USB-terminal can connect to the Dsignal, a third USB-terminal can connect to the Dsignal and a fourth USB-terminal can connect to the ground signal of a USB connector. The device-connector includes device-terminals connected to the portable 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 device. Moreover, the first USB-terminal is connected to one of the second or third USB-terminals via a first circuit. Furthermore, the other of the second or third USB-terminals is connected to the second device-terminal via a third circuit.

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Lund, Sweden

Henrik Börjeson