Abstract: A battery powered system and a battery powered method are provided. The battery powered method includes: disposing a first power connector and a first magnet on a first connecting face of a first electronic device; and disposing a second power connector and a second magnet on a second connecting face of a first battery device, wherein the first power connector is connected to the second power connector in response to the first magnet and the second magnet being attached to each other, and the first battery device powers the first electronic device via the first power connector.

Abstract: A picking system comprises a radio frequency identification (RFID) tag, a case, a two-wire conductive strip, at least one identifying unit and a processing unit. The two-wire conductive strip is electrically connected between the identifying unit and the processing unit. The identifying unit reads tag information within the RFID tag for actively and instantly controlling the authorization of an operating staff assigned for particular items thereby improving the accuracy of picking items.

Abstract: The present invention provides a transmission interface conversion device, which can first convert the communication signal of a master equipment controller and then connect to a plurality of slave devices through a pair of transmission lines so as to perform data transmission and power supply synchronously. The transmission interface conversion device includes: a conversion interface, formed by at least one repeater circuit, which transmits data by half-duplex; a signal inspector, which inspects whether a signal has been transmitted to the conversion interface; a control unit, to determine the orientation and the operation method of the repeater circuit by using the signal that has been inspected by the signal inspector; and a voltage adjustor, to supply needed electric power to all the above-mentioned circuits. The invention has features of being installed and maintained easily as well as being able to reduce the cost of cabling.

Abstract: An universal multimedia book interfacing device is disclosed in this invention. This device is used for operation with a multimedia book. The interfacing device includes a first adapting connector provided with connection compatibility for electrically connecting to several different multimedia books. Each multimedia book is provided with user interfaces for accepting user input signals therein and delivering user output signals therefrom. The universal interfacing device further includes a second adapting device provided with connection compatibility for electrically connecting to a data storage containing data relating to the multimedia books. The universal interfacing device is provided for electrically transmitting the user input signals received from one of the multimedia books to pre-designated locations in the data storage for generating user output signals and for electrically transmitting the user output signals to the multimedia books.