Abstract: The present invention discloses a network service extension method and device capable of extending the range of a network service. An embodiment of said method comprises the following steps: establishing a link between a substantial network unit of a wireless network relay device and a wireless network serving device; configuring a virtual wireless network serving unit according to the link setting of the wireless network serving device, so as to make the link settings of the virtual wireless network serving unit and the wireless network serving device the same; establishing a link between the virtual wireless network serving unit and a wireless network demand device; and establishing the connection between the wireless network serving device and the wireless network demand device via the virtual wireless network serving unit and the substantial network unit.

Abstract: An electronic device having network connection function includes a receiving unit and a control unit, where the electronic device and an access point support a plurality of connection modes. The receiving unit is utilized for receiving a signal from the access point. The control unit is utilized for selecting a specific connection mode from the plurality of connection modes according to a determination result generated by determining whether the signal satisfies a predetermined condition, and starting to connect to the access point by using the specific connection mode, where a data rate of the specific connection mode is not a highest data rate among that of the plurality of connection modes.

Abstract: A power adjusting apparatus communicating with a remote terminal is provided. The apparatus includes: a transceiving unit transmitting a plurality of test packets by a plurality of powers; a processing unit coupled to the transceiving unit, and deciding a transmission power for transmitting a subsequent packet according to at least one retransmission number of transmitting the test packets.

Abstract: A communication device may include a transmitting circuit for transmitting packets from a first communication device to a second communication device and a processor in the first communication device and coupled with the transmitting circuit. The processor may evaluate the packet receipt status information to identify a packet receipt characteristic associated with the second communication device and control data packet transmission from the first communication device to the second communication device based on the packet receipt characteristic associated with the second communication device.

Abstract: A selecting apparatus for receiving antennas of a Multiple Input Multiple Output wireless system and a method thereof are disclosed. The method for selecting antennas includes the following steps. Select a set of receiving antenna sequentially by a selective and control unit so as to receive an input data. Then a signal processing module deals with the input data to generate output data sets. An operation unit processes at least one of the multiple sets of output data for generating a detection data that is sent to a determining unit. According to the detection data, the determining unit generates a control signal that is sent to the selective and control unit for driving the selective and control unit to select a set of antenna to be used.

Abstract: A multi-mode wireless transceiver and a multi-mode switching method thereof are disclosed to provide at least one wireless transceiving interface capable of dynamically switching between multiple frequency bands. The wireless transceiver comprises: a first RF transceiving circuit for transceiving RF signals of a first frequency band; a second RF transceiving circuit for transceiving RF signals of a second frequency band; a first frequency synthesizer and a second frequency synthesizer for generating a first carrier of the first frequency band and a second carrier of the second frequency band respectively; and a switching circuit for outputting the first carrier to the first RF transceiving circuit, and for determining to output one of the first and second carriers to the second RF transceiving circuit according to a control signal.

Abstract: A wireless communication system includes a receiving unit, a buffer unit, a determining unit, and an adjustment unit. The receiving unit receives a signal stream. The buffer unit is coupled to the receiving unit, for storing the signal stream by using a used depth. The determining unit is coupled to the receiving unit, for determining a signal receiving quality of the signal stream received from the receiving unit and accordingly generating a determining result. The adjustment unit is coupled to the determining unit and the buffer unit, for adjusting the used depth of the buffer unit according to the determining result.

Abstract: A communication apparatus includes a host, a signal receiving apparatus arranged to receive a wireless signal, and a connecting device coupled between the host and the signal receiving apparatus. The connecting device is arranged to transmit a transmission signal between the host and the signal receiving apparatus. The signal receiving apparatus refers to the state of the received wireless signal to control the connecting device to selectively enter a second operation mode from a first operation mode to reduce the interference upon the wireless signal.

Abstract: An equalizer and an equalizing method for equalizing a received signal, where the received signal includes at least one primary interference and a plurality of secondary interferences. The Viterbi equalizer includes a filter module for filtering out the secondary interferences from the received signal to generate a filtered signal, a serial to parallel converter, coupled to the filter module, for generating a plurality of sequences according to the filtered signal, and a Viterbi equalizing module, coupled to the serial to parallel converter, for respectively equalizing the plurality of sequences to generate a plurality of equalized sequences. The architecture of the Viterbi equalizing module is greatly simplified thereby reducing the calculation activity of the Viterbi equalizer as well as maintaining its efficiency.

Abstract: A data transmitting system, comprising: a processor; a first transmitting interface; a first transmitting apparatus; a second transmitting interface; a second transmitting apparatus and a signal transmitting line. The processor enters a power down mode when the first transmitting apparatus does not output data. The first transmitting generates a data transmitting indication signal when the processor is operated in the power down mode and the first transmitting apparatus has data to be output. The second transmitting apparatus generates a recovery signal according to the data transmitting indication signal, and transmits the recovery signal to the processor via the second transmitting interface. Thereby the processor goes back to a normal mode to control the first transmitting apparatus to output data.

Abstract: A transmit diversity method applied to a transmitting system includes the steps of: receiving a serial stream, and transforming the serial stream into a plurality of parallel streams, wherein each parallel stream is carried by a corresponding sub-carrier; and in light of each sub-carrier, selecting a single transmission path from at least two transmission paths of the transmitting system so as to transmit the parallel stream carried by the sub-carrier. The transmit diversity method further includes the step of: dividing the plurality of parallel streams carried by the sub-carries into M groups, wherein the parallel streams belonging to the same group are transmitted via selecting the same transmission path.

Abstract: A communication device includes a plurality of host control interfaces, an interface detector, and a transmitter. The plurality of host control interfaces selectively connect to a connection interface of a host. The interface detector is coupled to the plurality of host control interfaces and utilized for determine an interface specification of the connection interface to generate a detection result. The transmitter is coupled to the interface detector and supports a plurality of transmission power levels. The transmitter is utilized for determining a plurality of transmission configurations, and selecting one of the transmission configurations to communicating with a receiver, wherein each of the transmission configurations determines a transmission power level configuration of the transmitter.

Abstract: A universal serial bus (USB) network interface controller and an operation mode switching method thereof are provided. The USB network interface controller determines an access point network band of a wireless network access point with which the USB network interface controller intends to connect, and switches from a first USB operation mode to a second USB operation mode to transmit data with a host so that an operation frequency of the USB network interface controller falls outside the access point network band. Afterwards, the USB network interface controller adjusts an operation network band to be the same as the access point network band, and exchanges information with the wireless network access point.

Abstract: A network apparatus and a connection detecting method thereof are disclosed. The network apparatus receives a network connection request which determines a wireless network connection between a USB network controller and a wireless network access point. The network apparatus determines a network connection frequency band of the wireless network connection according to the network connection request, and switches a data transmission mode of the USB network controller from a first USB operation mode to a second USB operation mode after determining that an operation frequency of the first USB operation mode conflicts with the network connection frequency band.

Abstract: A wireless network system and a connecting method thereof are provided. The wireless network system includes a Wi-Fi apparatus and a communication apparatus. The Wi-Fi apparatus provides a Service Set Identifier (SSID). The SSID includes a first identifier value and a second identifier value, and the second identifier value is derived from the first identifier value by a hash function. After searching the SSID of the Wi-Fi apparatus, the communication apparatus determines that a value derived from the first identifier value of the SSID by the hash function is equal to the second identifier value, and then establishes a Wi-Fi authenticating connection with the Wi-Fi apparatus according to a connection password. The Wi-Fi apparatus establishes a data transmission connection with the communication apparatus after determining that the communication apparatus is legal according to the Wi-Fi authenticating connection.

Abstract: A multiple-antenna receiver can enable and disable receive radio frequency front-end and analog front-end circuits of specific antenna receiving routes according to a predetermined scheme during the receive data phase. The predetermined scheme calculates signal quality indices of the receiving route antennas according to a preamble sequence, and derives the modulation and coding scheme and the number of spatial streams via the information provided by a header sequence. Indications of the signal quality indices are compared with threshold values to determine which receiving routes are to be turned on and which receiving routes are to be turned off.

Abstract: A method of tuning a driving current of a data transmission interface includes: utilizing a driving current with a present current value to continuously send a test data to a receiving end; accumulating a number of times that the test data is sent to generate a transmission counting result; determining whether a transmission error occurs while the test data is sent to the receiving end and accumulating a number of times that the transmission error occurs to generate a transmission error counting result; and when the transmission counting result reaches a predetermined value, determining how to tune the present current value of the driving current according to the transmission error counting result.

Abstract: The present invention provides an antenna diversity apparatus and an antenna diversity method. The antenna diversity apparatus comprises: a plurality groups of antennas, a switching unit, a demodulating unit, an antenna switch selecting unit, and a control unit, wherein each group of the plurality groups of antennas comprises at least an antenna, and the control unit can comprises: a receiving signal quality detecting unit, a packet detecting unit, and an antenna decision unit. The antenna decision unit can be realized by hardware, firmware, or software, and the antenna switch selecting unit can be realized by hardware. The antenna diversity apparatus and the antenna diversity method provided by the present invention can switch antennas fast to avoid the defect of occurring burst error to reduce transmitting data rate, and switch to proper antennas fast when variation of the data transmission channels occurs.

Abstract: A network connection device includes a wired network module, for connecting an electronic apparatus to a wired network; and a wireless network module, serving as a wireless network client to connect the electronic apparatus to a wireless network. The network connection device operates in a router mode, an AP mode or a repeater mode, and automatically switches between different modes.

Abstract: A network system includes a wireless network device, a network control device, and a first controller. The wireless network device includes an RF unit for transmitting/receiving frames and a first connection interface unit. The network control device includes a second connection interface unit, wherein the second connection interface unit is coupled to the first connection interface unit via a transmission connection, in order to perform data transmission with the first connection interface unit. When there is no data transmitted via the transmission connection, the first controller turns off at least one of power supplies of the first connection interface unit and the second connection interface unit. The first controller may be disposed in the network control device or the wireless network device.