Abstract: A soundwave transmission installation method is an actuation procedure in which one system connects to and installs at least one embedded second system. The method consists of: activating the second system that is required to be installed; enabling the second system to wait for a notification signal transmitted from the first system, wherein the notification signal is in sound wave format and contains the setting data for initializing installation; and executing an installation procedure based upon setting data when the second system receives the notification signal such that installation is completed, and a designated system is automatically connected.

Abstract: A printer servo device includes a main servo device, two communicating devices coupled to the main servo device, and an output device coupled to the main servo device. The main servo device includes a judging device to determine whether either of the communicating devices is coupled to the output device or not, and includes a switching device to selectively couple either of the communicating devices to the output device, and to allow requests from the communicating devices to be automatically outputted from the output device. The main servo device includes an output port coupled between the output device and the communicating devices.

Abstract: The present invention relates to a 3-D patterned frame for a light string, which includes a cylindrical frame connected with four legs bottomly and with an animal head frame at front opening. The head frame can be received in the cylindrical frame and the legs can be folded when the patterned frame is not used.