US Patent 9792901 Multiple-source speech dialog input

A speech system may be configured to operate in conjunction with a stationary base device and a handheld remote device to receive voice commands from a user. A user may direct speech either to the base device or to the handheld device. In order to direct speech to the base device, the user first speaks a keyword. In order to direct speech to the handheld device, the user presses a talk control on the handheld device. A dialog may be conducted with the user in multiple turns, where each turn comprises user speech and a speech response by the speech system. The user speech in any given dialog turn may be provided from the base device and/or the handheld device.