Abstract:
A system for receiving wireless signals is provided. The system includes an antenna for receiving wireless signals, a preprocessor connected to the antenna, a voltage supply for outputting distinctive DC voltage levels, a connector for providing a DC path and an AC path, a signal-processing module AC-coupled to the preprocessor via the connector, a DC regulator DC-coupled to the voltage supply via the connector, and a signal detector DC-coupled to the voltage supply via the connector, wherein the DC regulator is configured to receive the DC voltage outputted from the voltage supply and provide a first supply voltage to the preprocessor, and the signal detector is configured to detect the DC voltage outputted from the voltage supply and generate a control signal to the preprocessor. The preprocessor selectively adjusts strength of the wireless signals received by the antenna by means of the control signal, and then outputs a data signal which is subsequently transmitted to the signal-processing module via the connector.
Abstract:
In a method of mobile information services, a mobile information service device is connected to a remote information server and a telecommunications service provider so as to timely provide information to a hand-held mobile communications device. In the method, the mobile information service device searches the information server according to a filtering rule for information complying with the filtering rule, and sends a notification message to the hand-held mobile communications device through the telecommunications service provider such that the hand-held mobile communications device, after receipt of the notification message, downloads information related to the notification message from the information server, thereby achieving user convenience and ensuring information confidentiality, without incurring extra fees.
Abstract:
A method of displaying images includes detecting frequency of ambient light, updating frequency of a display device according to the frequency of the ambient light, and adjusting shutter frequencies of a pair of shutter glasses according to the frequency of the ambient light when the display device is in a 3D display mode. In this way, flickers caused by inconsistency between the frequency of the ambient light and the frequencies of the display device and the shutters of the shutter glasses can be avoided.
Abstract:
A method for controlling a network connection of a wireless network device includes: after the wireless network device is waked up from a sleep mode: loading a wireless network driver; determining whether a predetermined access point satisfies a predetermined rule under a condition that the wireless network driver does not scan access points; and when the predetermined access point satisfies the predetermined rule, the wireless network driver directly utilizes pre-stored network connection information to connect to the predetermined access point without scanning the access points.
Abstract:
A method of displaying images includes detecting frequency of ambient light, updating frequency of a display device according to the frequency of the ambient light, and adjusting shutter frequencies of a pair of shutter glasses according to the frequency of the ambient light when the display device is in a 3D display mode. In this way, flickers caused by inconsistency between the frequency of the ambient light and the frequencies of the display device and the shutters of the shutter glasses can be avoided.
Abstract:
The present invention discloses a power saving method of a portable Internet device, the portable Internet device and its instant messaging system. If a screen of the portable Internet device is in non-view state, for example, both backlight module and LCD panel are turned off, it means that a user is not viewing the screen, and thus the message update frequency of the instant messaging program is lowered to prevent unnecessary transmission and receiving of wireless signals, so as to reduce power comsumption of the portable Internet device.
Abstract:
A wireless transmission system and a method thereof are disclosed. The wireless transmission system comprises a control unit, a first transmission unit, a second transmission unit, a plurality of switches, and a plurality of RF ends. The first transmission unit comprises a first transceiver module and a first MAC module. The second transmission unit comprises a second transceiver module and a second MAC module. The plurality of RF ends has a plurality of streams for transmitting a wireless signal. The control unit is provided for controlling the plurality of switches to connect the first transmission unit and the second transmission unit respectively with the plurality of RF ends to distribute the plurality of streams, and controlling the first transceiver module and the second transceiver module to manage the plurality of streams.
Abstract:
A wireless communication system of a notebook computer includes a first antenna, an antenna array module and a wireless local area network (WLAN) module. The antenna array module includes a plurality of second antennas and a plurality of connectors electrically connected to the second antennas via corresponding signal transmission lines, wherein the distance between two adjacent second antennas is identical, and the length of each signal transmission line is equal. The wireless local area network (WLAN) module has a switch unit electrically connected to the first antenna and the antenna array module to select one of the first antenna and the antenna array module to receive/transmit a signal according to an operational mode of the WLAN module.
Abstract:
A wireless electronic device includes a first antenna having a first gain, a second antenna having a second gain, and a processing circuit for alternatively performing a first mode or a second mode. When the first mode is performed, the processing circuit outputs wireless signals via the first antenna, and receives wireless signals via the first antenna. When the second mode is performed, the processing circuit outputs wireless signals via the first antenna, and receives wireless signals via the second antenna.
Abstract:
A wireless communication device includes a Wi-Fi module for operating in WLAN system and a Bluetooth module for operating in Bluetooth system. After entering a power-saving mode, the wireless communication device is configured to turn off the Wi-Fi module and periodically scan an operational frequency band of a network using the Bluetooth module. When detecting a radio frequency signal having the same bandwidth as the network in the operational frequency band, the wireless communication device is configured to enter a normal mode.