Abstract: This invention discloses an apparatus and a method of 3G mobile communication capable of implementing a multi-channel protocol. The 3G mobile communication apparatus includes: an application layer, for providing applications to transmit voice data; a multi-channel processing layer, for simulating at least one physical communication port of the 3G mobile communication apparatus into virtual logical data channels by software according to priority of the data transmitted, and each virtual logical data channel is connected to the data processing layer, and a multi-channel protocol layer is provided for transmitting the data received by the 3G mobile communication apparatus to the data processing layer according to the priority of the data; and a 3G wireless communication module, which is a wireless communication interface, for connecting the bus interface and achieving a signal connection of the 3G mobile communication apparatus with a base station.

Abstract: A simulation testing system for a mobile communication apparatus and a simulation testing method thereof are disclosed. The simulation testing system comprises a first mobile communication device and a second mobile communication device. The first mobile communication device comprises a first command processing module and a data processing module. The first command processing module sends an attention command. The second mobile communication device comprises a second command processing module, having a simulation unit for receiving the attention command and simulating a modulator/demodulator to transmit a simulation connection command. After the first mobile communication device receives the simulation connection command, the data processing module sends the testing data to the second mobile communication device. Compared with previous testing system of a mobile communication apparatus, the simulation testing system does not need a network.

Abstract: This invention discloses an apparatus and a method of 3G mobile communication capable of implementing a multi-channel protocol. The 3G mobile communication apparatus includes: an application layer, for providing applications to transmit voice data; a multi-channel processing layer, for simulating at least one physical communication port of the 3G mobile communication apparatus into virtual logical data channels by software according to priority of the data transmitted, and each virtual logical data channel is connected to the data processing layer, and a multi-channel protocol layer is provided for transmitting the data received by the 3G mobile communication apparatus to the data processing layer according to the priority of the data; and a 3G wireless communication module, which is a wireless communication interface, for connecting the bus interface and achieving a signal connection of the 3G mobile communication apparatus with a base station.

Abstract: The present invention discloses a structure for preventing the loss of a pen of an electronic device comprising a pen holding slot, a sensor switch disposed in the pen holding slot, and a control circuit being electrically connected to the sensor switch, so that if the pen is not placed into the pen hold slot, the sensor switch will send a non-press signal to the control circuit, enabling the control circuit to turn on a beeping circuit to generate a warning sound to remind users to place the pen back into the pen holding slot. Therefore, the present invention can prevent the loss of the pen by the reminder of such warning sound.

Abstract: The present invention discloses a structure for preventing the loss of a pen of an electronic device comprising a pen holding slot, a sensor switch disposed in the pen holding slot, and a control circuit being electrically connected to the sensor switch, so that if the pen is not placed into the pen hold slot, the sensor switch will send a non-press signal to the control circuit, enabling the control circuit to turn on a beeping circuit to generate a warning sound to remind users to place the pen back into the pen holding slot. Therefore, the present invention can prevent the loss of the pen by the reminder of such warning sound.