Abstract: An active GPS tracking system and method includes a user setting interface for receiving a reporting distance, a distance trigger module, a GPS module and a wireless communication module. The distance trigger module calculates a moving distance of the active GPS tracking system, and generates and sends an interrupt signals to the GPS module to make it enter a working mode when the moving distance is greater than or equal to the reporting distance. Then, the GPS module determines a current position of the active GPS tracking system and determines whether an actual displacement is greater than or equal to the reporting distance to determine if reporting the current position. If the actual displacement is greater than or equal to the reporting distance, the wireless communication module receives the current position from the GPS module, and reports to a monitor center.

Abstract: A mobile communication device (10) communicating with a communication network (20) includes a microphone (11) for receiving sounds of a user and converting the sounds into outgoing analog signals, a processor (13), a system memory (16) for storing system data from the processor, and a data converter module (12). The data converter module includes an A/D converter sub-module (120) for converting the outgoing analog signals into outgoing digital sound data; and a memory (121) for storing the outgoing digital sound data. The processor directly retrieves the outgoing digital sound data from the memory and converts the outgoing digital sound data into packets to be transmitted to the communication network.

Abstract: A dual-mode phone includes a mobile phone antenna, a mobile phone module, a WLAN antenna, a WLAN module, a processing module, a memory, and a user interface. The processing module sets a communication mode of the dual-mode phone. The memory stores the communication mode and a phone book, wherein the phone book includes a plurality of mobile phone numbers, a plurality of WLAN phone addresses, mapping relationships between the plurality of mobile phone numbers and the plurality of WLAN phone addresses, and statuses of dual-mode phones corresponding to the plurality of WLAN phone addresses. The user interface receives an input phone number. The processing module further determines if the input phone number is a mobile phone number, determines if the mobile phone number has a mapping WLAN phone address, and calls the mapping WLAN phone address via the WLAN module.

Abstract: A mobile phone power supply circuit for a mobile phone, including a super capacitor, a photovoltaic module, a comparator, a battery power source, and a single-pole-double-throw (SPDT) switch. The photovoltaic module buffers solar power in the super capacitor. The comparator compares voltage of the super capacitor and a reference voltage and outputs a control signal according to the comparison. The SPDT switch selects either the super capacitor or the battery power source to supply power to the mobile phone according to the control signal.

Abstract: An active GPS tracking system and method includes a user setting interface for receiving a reporting distance, a distance trigger module, a GPS module and a wireless communication module. The distance trigger module calculates a moving distance of the active GPS tracking system, and generates and sends an interrupt signals to the GPS module to make it enter a working mode when the moving distance is greater than or equal to the reporting distance. Then, the GPS module determines a current position of the active GPS tracking system and determines whether an actual displacement is greater than or equal to the reporting distance to determine if reporting the current position. If the actual displacement is greater than or equal to the reporting distance, the wireless communication module receives the current position from the GPS module, and reports to a monitor center.

Abstract: An electronic device includes an input apparatus and a processor. The input apparatus includes a plurality of infrared ray (IR) modules, and each of the plurality of IR modules generates a pulse signal when activated by a user input. The processor includes a plurality of interrupt pins, and each of the plurality of interrupt pins is connected to one of the plurality of IR modules to receive a corresponding pulse signal from the one of the plurality of IR modules and to generate a corresponding interrupt signal. The processor determines if the input is a sliding input and a moving direction of the sliding input according to the interrupt signals generated by the plurality of interrupt pins.

Abstract: A bridge device for bridging a wireless local area network (WLAN) and a plurality of wireless wide area networks (WWANs) includes a first communication port, a second communication port, a third communication port, a first media controller, a second media controller, a third media controller and a bridge module. The bridge module includes a flow controller and a data converter. The media controllers receive inbound data packets from corresponding communication ports and transmitting outbound data packets to corresponding communication ports. The flow controller controls data packet flow between the WLAN and the WWANs and records current bandwidths and utilization statuses of the WWANs, and the data converter converts between the inbound data packets and the outbound data packets accordingly.

Abstract: A dual-mode phone includes a mobile phone antenna, a mobile phone module, a WLAN antenna, a WLAN module, a processing module, a memory, and a user interface. The processing module sets a communication mode of the dual-mode phone. The memory stores the communication mode and a phone book, wherein the phone book includes a plurality of mobile phone numbers, a plurality of WLAN phone addresses, mapping relationships between the plurality of mobile phone numbers and the plurality of WLAN phone addresses, and statuses of dual-mode phones corresponding to the plurality of WLAN phone addresses. The user interface receives an input phone number. The processing module further determines if the input phone number is a mobile phone number, determines if the mobile phone number has a mapping WLAN phone address, and calls the mapping WLAN phone address via the WLAN module.

Abstract: A mobile communication device (10) communicating with a communication network (20) includes a microphone (11) for receiving sounds of a user and converting the sounds into outgoing analog signals, a processor (13), a system memory (16) for storing system data from the processor, and a data converter module (12). The data converter module includes an A/D converter sub-module (120) for converting the outgoing analog signals into outgoing digital sound data; and a memory (121) for storing the outgoing digital sound data. The processor directly retrieves the outgoing digital sound data from the memory and converts the outgoing digital sound data into packets to be transmitted to the communication network.

Abstract: A wireless communication device (10) for processing Voice over Internet Protocol signals includes an encoding and decoding module (30), a central processing unit (CPU) (20), a digital signal processor (DSP) (40), and a wireless communication module (50). The CPU communicates with the encoding and decoding module for controlling signal flows of the wireless communication device, and includes a multi-channel serial interface (MCSI) (200), an external memory interface (EMI) (210), and a serial peripheral interface (SPI) (220). The DSP communicates with the CPU via the MCSI and the EMI for compressing signals received from the MCSI and decompressing signals received from the EMI. The wireless communication module communicates with the CPU via the SPI for receiving and transmitting voice packets.

Abstract: An electronic presentation control device (100) includes a keyboard module (110), a command encoding module (120), an electronic presentation control module (130), and a wireless communication module (140). The keyboard module is provided for inputting information. The command encoding module encodes the input information into control information. The wireless communication module communicates with a communication port of a computer via a wireless local area network. The electronic presentation control module inputs the control information to the communication port of the computer and controls an electronic presentation application of the computer. An electronic presentation control system and method are also provided.