Abstract: A method for determining the positions of contacts through a global positioning system (GPS) is disclosed. The method includes sending position requests to the contacts, feeding back the current position information of the contacts to a GPS receiver of a user after receiving position requests, searching the contacts located within a same geographical region as the user according to the feedback information and displaying a list of the contacts to the user in the same geographical region.

Abstract: A testing system includes a computer (10), a motherboard (31) of a mobile phone, a photosensitive component (33) and a measuring device. The motherboard of the mobile phone is connected to the computer. The motherboard of the mobile phone includes a keyboard light (313) disposed thereon. The photosensitive component is capable of sensing the brightness of the keyboard light. The measuring device is connected to the photosensitive component. The measuring device is capable of measuring the resistance of the photosensitive component and transmitting the resistance to the computer. The computer is capable of comparing the resistance with a pre-determined range of values to determine whether the keyboard light of the motherboard meets a standard.

Abstract: An adapter (100) is adapted to connect a Personal Computer (PC) to a portable device (such as a mobile phone) to support data exchange and power transmitting therebetween. The adapter comprises a first connector (10), a second connector (20), and a cable (30) electrically connecting the two connectors. The first connector electrically connects to the PC, and the second connector electrically connects to the portable device. A power converting circuit (40) and a data transmitting circuit (50) are disposed on a printed circuit board (PCB) housed in the second connector. Power from the PC passes through the first connector, the cable, the power converting circuit, and through the second connector to the portable device. Data is exchanged between the PC and the portable device via the first connector, the cable, the data transmitting circuit, and the second connector.