Abstract:
A method for switching communication network used in a first electronic device which is able to access many kinds of communication networks is disclosed. If the first electronic device receives a switching instruction at a time when a communication link and a data transmission have been established between the first electronic device and a second electronic device via a first communication network. Firstly, the first electronic device obtains an identification number of a third electronic device for use in a second communication network. Then, the communication link is established between the first electronic device and the third electronic device via the second communication network according to the identification number. Finally, the data is transmitted using the communication link between the first electronic device and the third electronic device via the second communication network, and disconnects the original communication link via the first communication link.
Abstract:
An antenna structure for operating multi-band system is disclosed. The antenna structure at least comprises a first radiation metal wire and a second radiation metal wire. These radiation metal wires send signal through the same feed point and provide a ground surface. The radiation metal wires are embedded into the circuit board having a hole. The design avoids the complexity of the antenna structure, reduces cost, and improves production capabilities. The length of the first radiation metal wire is bigger than the second radiation metal wire for using in a low frequency operating band and the second radiation metal wire is used in a high frequency operating band. These radiation metal wires can be fixed into the hole of the circuit board. The entwining of the radiation metal wires can bend according to a space provided by a case. Therefore, the antenna structure can be protected by the case without damages from outside forces.
Abstract:
A data transmission method and the transmission circuit thereof for transmitting data between a host and a peripheral apparatus are disclosed. The data transmission method includes the following steps. First, a clock signal is transmitted by a first pin. Then, a data signal is transmitted by a second pin according to the timing of the clock signal.
Abstract:
Information navigation methods. Contact is made with a touch-sensitive surface, and a navigation speed is determined according to contact movement speed. Information is continuously navigated according to the navigation speed.
Abstract:
A portable electronic device includes a main body, a sliding cover, and a transmission assembly. The sliding cover is disposed on the main body in a manner such that the sliding cover can slide within a fixed range. The transmission assembly is connected to the main body and the sliding cover respectively, and includes a sliding bearing and a drive element. The sliding bearing includes a sliding sleeve, a plurality of rolling balls, and a rotating shaft. The sliding sleeve includes a plurality of grooves, the rotating shaft includes a plurality of dents, and the rolling balls are disposed in the dents and the grooves simultaneously. The drive element is connected to the rotating shaft. When the drive element is started, the rotating shaft is driven to rotate, and the sliding sleeve is pushed to move linearly via the movement of the rotating balls.
Abstract:
A tapping operation method for inputting a signal into an electrical apparatus by tapping includes the following steps. First, at least one gravitational acceleration vector along the electrical apparatus is detected. Then, a signal is inputted into the electrical apparatus when a variation rate of the gravitational acceleration vector with respect to time exceeds a predetermined value. In addition, a mobile electrical apparatus with the tapping operation function, which employs this method, is also disclosed.
Abstract:
A power control method for a portable electronic device. The portable electronic device comprises a power supply unit and a volatile memory for storing data when the power supply unit supplies power thereto. First, the portable electronic device is set to enter a deep sleep mode. Then, data accessed from the volatile memory is transferred to a non-volatile memory. Finally, except for maintaining sufficient power to restore the device, the power supply unit is turned off.
Abstract:
A method for arbitrating audio signal output used in a portable electronic device, which comprises a speaker and two independent voice communication systems. When one voice communication system needs to send out a ringing signal, the voice communication system first detects the status of the other voice communication system. If the other voice communication system is idle, the ringing signal is sent out via the speaker; if the other voice communication system is in use, the ringing signal is not sent out, and an optional prompting signal is sent out via a receiver.
Abstract:
A portable electronic device comprises a housing, a circuit board, a heat-conduction structure and a heat-dissipation structure. The circuit board is disposed in the housing. The heat-conduction structure is disposed in the housing and contacts the circuit board. The heat-dissipation structure is disposed outside the housing and connected to the heat-conduction structure, wherein heat is transmitted from the circuit board, passing the heat-conduction structure and the heat-dissipation structure to be dissipated out of the housing.