RALINK TECHNOLOGY CORPORATION Patent applications |
Patent application number | Title | Published |
20140269309 | METHOD OF MANAGING COMMUNICATION TRAFFIC FOR MULTIPLE COMMUNICATION TECHNOLOGIES AND COMMUNICATION DEVICE THEREOF - A method and a communication device for managing communication traffic for multiple communication technologies are provide. The method, performed by a communication device to manage communications with a first and a second network having a first and a second communication technology, respectively, includes: determining, by a second communication module, whether a first transmission of the first communication technology is in progress before proceeding with a second transmission having the second communication technology; when the first transmission is in progress, initiating, by a second communication module, an unavailable period of the first communication technology; initiating, by a second communication module, notification of the unavailability of the first communication technology to the first network; and proceeding, by the second communication module, with the second transmission. | 09-18-2014 |
20130038422 | METHOD AND SYSTEM OF REDUCING THE TEMPERATURE OF AN INTEGRATED CIRCUIT AND A DIGITAL COMMUNICATION SYSTEM USING SAME - A method and system for reducing the temperature of a communication system are disclosed. The method and system comprise detecting a temperature of the communication system. The method and system further includes providing a signal based upon the detected temperature, and determining a desired idle time between transmit packets based upon the signal. Finally, the method and system includes sending the desired idle time between transmit packets to the communication system. | 02-14-2013 |
20130033312 | SINGLE-ENDED TO DIFFERENTIAL AMPLIFIER - A circuit for single ended to differential conversion is disclosed. The circuit comprises a source for providing a single ended signal; and a transformer for receiving the single ended signal. The transformer includes first and second inductors. The first and second inductors are mutually coupled. When the operating frequency changes, a phase difference of currents flowing through the inductors changes, and therefore a phase difference between effective impedance of the first and second inductors changes to maintain a substantially 180 degree phase difference due to the mutual coupling. | 02-07-2013 |
20120281714 | PACKET PROCESSING ACCELERATOR AND METHOD THEREOF - A packet processing accelerator comprises a programmable packet classification module, a programmable flow control module, and a programmable packet header modification module. The programmable packet classification module is configured to receive a data packet and generate a start location of each protocol header of the data packet and a first index. The first index indicates classification of the data packet. The programmable flow control module is configured to generate a code of an output port and an action code according to the start location of each protocol header of the data packet and the first index. The programmable packet header modification module is configured to modify content of a plurality of protocol headers of the data packet according to the action code and to send the modified data packet to an output port according to the code of the output port. | 11-08-2012 |
20120280744 | CHARGE PUMP CIRCUIT - A charge pump circuit includes a charge generation circuit, a tracking circuit, a replica circuit, and a main charge pump. The main charge pump generates a charge current and a discharge current to a subsequent loop filter according to a UP signal and a DOWN signal. The replica circuit generates a first voltage in response to the current values of the first current source and the second current source of the main charge pump. The tracking circuit adjusts the current values of the first current source and the second current source of the main charge pump according to the first voltage and a second voltage, wherein the second voltage is in response to a voltage of an output node of the main charge pump. | 11-08-2012 |
20120254473 | METHOD OF ESTABLISHING VIRTUAL USB INTERFACE FOR NON-USB APPARATUS AND THE NON-USB APPARATUS THEREOF - A method of establishing a virtual USB interface for a non-USB device, comprising the steps of establishing a non-USB interface to communicate with the non-USB device, generating a virtual USB physical device object to provide a USB transport layer driver, establishing the virtual USB interface to communicate with the USB transport layer driver, filtering a transmitting command of the USB transport layer driver based on the virtual USB interface, and filtering a returned information of the non-USB device based on the non-USB interface. | 10-04-2012 |
20120243540 | METHOD FOR OFFLOADING PACKET SEGMENTATIONS AND DEVICE USING THE SAME - A method for offloading packet segmentations includes the steps of retrieving a packet segmentation offloading parameter in a packet and segmenting the packet into a plurality of sub-packets by taking consideration the packet segmentation offloading parameter. A device for offloading packet segmentations includes a packet parser configured to receive a packet to be transmitted, a header buffer controller configured to retrieve a header of the packet and connected to a buffer to access the header, an extractor configured to retrieve a packet segmentation offloading parameter in the packet, and a segmentation module configured to segment the packet into a plurality of sub-packets by taking consideration the header and the packet segmentation offloading parameter. | 09-27-2012 |
20120166846 | USB SYSTEM AND POWER MANAGEMENT MODULE AND METHOD THEREOF - A power management module is configured to set up a power mode of a computer system. A peripheral device having a Universal Serial Bus (USB) is connected to the computer system. The power management module includes an Operating System (OS) and a filter driver. The OS is configured to set up the power mode of the computer system, and the filter driver is configured to change the power mode of the computer system according to a packet transmitting/receiving status of the peripheral device. | 06-28-2012 |
20120159339 | METHOD FOR FACILITATING SELECTION OF OBJECTS APPEARING IN A USER INTERFACE OF A WIRELESS CONTROL SYSTEM - A method for facilitating selection of objects appearing in a window of a user interface of a wireless control system comprises the steps of: displaying a plurality of client objects in a first connection layer of a first interface; moving the displayed client objects in the first connection layer; selecting a client object from the plurality of client objects in the first connection layer; displaying a plurality of client objects in a second connection layer if the selected client object in the first connection layer connects to client objects in a second connection layer; and establishing the network connection with the selected client object in the first connection layer. | 06-21-2012 |
20110296178 | Auto Provisioning Method in Wireless Communication Network - A method for auto provisioning for a communication device in a wireless communication network comprises the steps of: receiving a request from a station; determining the validity of the request according to a verification code carried by the request; sending a response to the station; receiving a security message from the station; retrieving a security key carried by the security message; and executing network provisioning according to the security key. | 12-01-2011 |
20110295080 | Physiology Condition Detection Device and the System Thereof - A physiology condition detection device comprises a physiology condition sensor, a signal converter and an RFID processor. The physiology condition sensor is configured to sense physiology condition. The signal converter is configured to convert the sensed physiology condition to digitized physiology data. The RFID processor is configured to control the operation of the physiology condition sensor and the signal converter, and report the digitized physiology data. | 12-01-2011 |
20110280335 | METHOD FOR MULTI-CHANNEL TRANSMISSION WITH MULTIPLE FREQUENCY SEGMENTS - A method for multi-channel transmission with multiple frequency segments comprises the steps of: determining a plurality of non-contiguous frequency segments from an available frequency band of a communication system, wherein each frequency segment comprises a plurality of contiguous channels; determining available channels from the channels in the plurality of non-contiguous frequency segments, wherein the number of available channels is less than or equal to the number of total channels in the plurality of non-contiguous frequency segments; determining a primary channel from the available channels; performing channel bonding technique on the available channels; and performing multi-channel transmission by performing dynamic channel selection technique on the available channels. | 11-17-2011 |
20110280326 | METHOD FOR CLUSTERING MULTIPLE STATIONS - A method for clustering multiple stations for a MIMO communication system comprises the steps of: assigning a plurality of stations of a MIMO communication system to a plurality of clusters, wherein each station is assigned to at least one cluster, and at least one cluster is assigned with more than one station; and assigning the plurality of clusters to a plurality of sets, wherein each cluster is assigned to a set. | 11-17-2011 |
20110222612 | METHOD FOR DETERMINING SIGNAL PHASE ROTATION OF SUB-CHANNELS WITHIN A TRANSMISSION BANDWIDTH - A method for determining signal phase rotation of sub-channels within a contiguous transmission bandwidth comprises the steps of: determining a fundamental set of phase rotations; performing a cyclic shift operation for the fundamental set of phase rotations to generate a cyclic-shifted set of phase rotations; multiplying the cyclic-shifted set of phase rotations by a complex constant to generate a final set of phase rotations; and determining the phase rotation of each sub-channel within the contiguous transmission bandwidth according to the final set of phase rotations. | 09-15-2011 |
20110205921 | METHOD AND APPARATUS FOR GENERATING FORBIDDEN CHANNEL LIST - A method for generating a forbidden channel list for a combined wireless communication station comprises the steps of: obtaining a channel usage report from an access point; performing a channel scan procedure; generating at least one of a channel load report, a noise indicator report, a signal strength indicator report and a packet error rate report according to the results of the channel scan procedure; and generating a forbidden channel list at least according to the generated one of the channel usage report, the channel load report, the noise indicator report, the signal strength to report, and the packet error rate report. | 08-25-2011 |
20110194473 | POWER-SAVING METHOD AND APPARATUS THEREOF - The present invention discloses a power-saving method. The method comprises the steps of: forwarding a packet in accordance with a forwarding signal; operating in a power-saving receiving mode to enable a receiver in accordance with a receiving enable signal; and determining whether a standard receiving mode is operating in accordance with a packet detection result. | 08-11-2011 |
20110191463 | MANAGEMENT METHOD FOR INTERNET PROTOCOL SHARING COMMUNICATION MECHANISM - A management method for an Internet protocol sharing communication mechanism comprises the steps of: setting up a plurality of rules for an Internet protocol sharing communication mechanism; providing a schedule divided into different time slots; assigning one rule from the rules for the Internet protocol sharing communication mechanism for each time slot of the schedule; and conducting a network communication according to the assigned rules. | 08-04-2011 |
20110176631 | COMMUNICATION METHOD FOR MIMO COMMUNICATION SYSTEM - A communication method for a MIMO communication system comprises the steps of: transmitting a plurality of first streams modulated in a non space division multiplexing manner from a transmitter to a plurality of receiving stations; and transmitting a plurality of second streams following the plurality of first streams modulated in a space division multiplexing manner from the transmitter to the plurality of receiving stations. Each of the first streams comprises a legacy short training field, a legacy long training field, a legacy signal field and at least a very high throughput signal field, and each of the first streams has the same length. Each of the second streams comprises a very high throughput short training field, a plurality of very high throughput long training fields and a data field, and each of the second streams has the same length. | 07-21-2011 |
20110170522 | WIRELESS TRANSMISSION METHOD FOR SPATIAL DIVISION MULTIPLE ACCESS SYSTEM - A wireless transmission method comprises the steps of: determining transmission time slots and start antenna indexes of a plurality of stations in a spatial division multiple access system according to the number of antennas of the plurality of stations; broadcasting a control frame signal to the plurality of stations and waiting for requests to transmit signals from the plurality of stations, wherein the control frame signal includes the transmission time slots and start antenna indexes of the plurality of stations; receiving the requests to transmit signals from the plurality of stations; and broadcasting a clear to transmit signal to the plurality of stations based on the received request to transmit signals. The requests to transmit signals of the plurality of stations, which are transmitted based on the transmission time slots and start antenna indexes of the plurality of stations, conform to a multi-input multi-output transmission standard of the access point. | 07-14-2011 |
20110161529 | COMMUNICATION APPARATUS AND INTERFACING METHOD FOR INPUT/OUTPUT CONTROLLER INTERFACE - A communication apparatus is disclosed. The communication apparatus comprises a transmission module and an I/O controller interface. The transmission module is configured to transmit data. The I/O controller interface acts as a host controller interface between the transmission module and a host module of an alternate MAC/PHY (AMP) manager. The I/O controller interface directs the transmission module to transmit and receive data of the AMP manager according to I/O request packets forwarded by the host module. | 06-30-2011 |
20110161447 | METHOD AND SYSTEM FOR RESPONDING TO MESSAGES - A method for responding to messages comprises the steps of: establishing a first database; establishing a second database; forwarding content of the first database to a first proxy device; forwarding content of the second database to a second proxy device; utilizing the first proxy device to respond to at least one first real message; and utilizing the second proxy device to respond to at least one second real message. | 06-30-2011 |
20110119567 | SIGNAL PROCESSING METHOD AND COMMUNICATION SYSTEM USING THE SAME - A signal processing circuit in a transmitter of a communication system comprises an appending circuit, a scrambler, an FEC encoder and a stream parser. The appending circuit is configured to divide a packet data string into a plurality of divided data strings, append a predetermined string to the tail of each divided data string, and output the appended data strings sequentially. The scrambler is configured to perform a scramble operation for the appended data strings. The FEC encoder is configured to sequentially encode the output data strings of the scrambler into convolutional code-words complying with the requirements of a MIMO communication system. The stream parser is configured to forward the convolutional code-words to at least a stream signal processing circuit. | 05-19-2011 |
20110105026 | COMBO WIRELESS SYSTEM AND METHOD USING THE SAME - A combo wireless system comprises a Bluetooth module, a wireless fidelity (WiFi) module, a single pole triple throw (SP3T) switch and an antenna. The antenna is utilized to transmit/receive Bluetooth signals for the Bluetooth module and to transmit/receive WiFi signals for the WiFi module. The SP3T switch is coupled between the antenna, the Bluetooth module and the WiFi module. The SP3T switch is controlled to select a path for the Bluetooth module to transmit/receive Bluetooth signals through the antenna, to select another path for the WiFi module to transmit WiFi signals through the antenna or to select another path for the WiFi module to receive the WiFi signals through the antenna. | 05-05-2011 |
20110105025 | ADAPTIVE TUNING METHOD AND APPARATUS FOR A COMBO WIRELESS SYSTEM - An adaptive tuning method comprises the steps of: obtaining a statistical result; determining whether an adaptive tuning procedure is to be performed in accordance with the statistical result; obtaining reference information of the first wireless module; and performing the adaptive tuning procedure in accordance with the reference information. | 05-05-2011 |
20110103276 | METHOD FOR TRANSMITTING UNIVERSAL SERIAL BUS DATA AND APPARATUS USING THE SAME - The present invention discloses a universal serial bus data transmission method. The universal serial bus data transmission method comprises the steps of: obtaining a time interval in accordance with a size of a buffer and a transfer rate of a wireless communication chip; sending data to the wireless communication chip; and, if the wireless communication chip responds with a negative acknowledge packet, re-sending the data to the wireless communication chip after the time interval. | 05-05-2011 |
20110102288 | ANTENNA APPARATUS - An antenna apparatus comprises a planar monopole antenna device and an extending layer. The planar monopole antenna device includes an electromagnetic shielding box. The extending layer is composed of electric conducting material and extends outward from a feed point of the electromagnetic shielding box. | 05-05-2011 |
20110095820 | METHOD FOR PRE-DISTORTING A POWER AMPLIFIER AND THE CIRCUIT THEREOF - A method for pre-distorting a power amplifier comprises the steps of: inputting a baseband digital training signal with time-varying amplitude into a transmitting end in a single operation; converting the baseband digital training signal to a radio-frequency analog training signal, and converting the radio-frequency analog training signal to a radio-frequency analog transmitting signal via a power amplifier; receiving the radio-frequency analog transmitting signal at a receiving end, and converting the received signal to a baseband digital receiving signal; and calculating parameters for pre-distorting the power amplifier by estimating the characteristic curve of the power amplifier according to the baseband digital receiving signal. | 04-28-2011 |
20110086596 | SIGNAL SPLITTING DEVICE AND WIRELESS COMMUNICATION DEVICE USING THE SAME - A signal splitting apparatus comprises a micro-strip line, a first inductor and a second inductor. A first end and a second end of the micro-strip line are grounded via a first capacitor and a second capacitor, respectively. The first end and the second end of the micro-strip line are electrically coupled to a receiving part of a transceiver and a transmitting part of the transceiver, respectively. One end of the first inductor is coupled to the first end of the micro-strip, and the other end of the first inductor is electrically coupled to an antenna module and grounded via a third capacitor. One end of the second inductor is coupled to the second end of the micro-strip, and the other end of the second inductor is electrically coupled to the antenna module. | 04-14-2011 |
20110069775 | SIGNAL PROCESSING METHOD AND APPARATUS FOR MIMO SYSTEM - A signal processing method for a MIMO system comprises the steps of: arranging a plurality of frequency domain MIMO data streams into a plurality of groups, wherein each group comprises at least a frequency domain MIMO data stream; partitioning sub-carriers of each of the plurality of frequency domain MIMO data streams into a plurality of sub-channels; performing phase rotation for the plurality of frequency domain MIMO data streams, wherein the phases of the sub-carriers in a sub-channel are rotated the same amount, and different phase rotations are performed on different groups of the plurality of frequency domain MIMO data streams; transforming the plurality of frequency domain MIMO data streams into a plurality of time domain MIMO data streams; and performing CSD for the plurality of time domain MIMO data streams if each group comprises more than one frequency domain MIMO data stream, wherein the amount of CSD is different for each time domain MIMO data stream in a group. | 03-24-2011 |
20110064080 | METHOD FOR WLAN LINK AGGREGATION AND SYSTEM FOR USING THE SAME - A system with WLAN link aggregation comprises an access point, a station and a remote host. The station is equipped with a first network interface unit and a second network interface unit. The first network interface unit and the second network interface unit are configured to forward packets to or receive packets from the access point. After receiving packets from the first network interface unit, the second network interface unit or the remote host, the access point modifies headers of the packets and forwards the packets to the first network interface unit, the second network interface unit or the remote host. | 03-17-2011 |
20110051693 | METHOD AND APPARATUS FOR ROAMING SEAMLESSLY - In accordance with the invention, a method for roaming seamlessly comprises the steps of: associating with a first access point; selecting a second access point if a first received signal strength indication (RSSI) value is less than a first threshold value; performing an authentication procedure and a handshaking procedure with the second access point; and associating with the second access point if a second RSSI value is less than a second threshold value. | 03-03-2011 |
20110045881 | WIRELESS COMMUNICATION MODULE, PORTABLE DEVICE USING THE SAME AND METHOD FOR MANUFACTURING THE SAME - The present invention discloses a wireless communication module, comprising a substrate; at least one wireless module, disposed on the substrate; and a module which does not emit wireless signals can be disposed on the substrate as well. The wireless communication module forms a compact structure and removes the need for RF shielded coaxial cables within the communication module. The present invention further discloses a portable device, which comprises a display part comprising a communication module; and a host part coupled to the display part; wherein the communication module is deposited on top of display part for better reception | 02-24-2011 |
20110043411 | MULTIPLE ANTENNA COMMUNICATION APPARATUS - A multiple antenna communication apparatus includes a printed circuit board having multiple layers and two antenna devices. The two antenna devices are disposed on antenna regions of the printed circuit board, and each antenna device comprises a ground terminal. Each ground terminal is coupled to a conductor on a different layer of the printed circuit board. The antenna regions on which the two antenna devices are disposed do not contain any main ground via. | 02-24-2011 |
20110038273 | METHOD FOR DETECTING CONTINUOUS CHANNEL NOISE AND APPARATUS FOR USING THE SAME - The method for detecting continuous channel noise comprises the steps of: setting a threshold value of channel busy time and a threshold number of channel busy condition; setting a count value to an initial value; obtaining a measured value of the channel busy time during a beacon interval; determining whether the measured value of the channel busy time is larger than or equal to the threshold value of the channel busy time; if yes, the count value is increased by 1, and if not, the count value is reset to the initial value; and determining whether the count value is larger than or to equal to the threshold number of the channel busy condition; if yes, a noise disturbance alarm is generated, and if not, next channel busy time is obtained during a next beacon interval so as to determine whether the count value is increased or not. | 02-17-2011 |
20110032916 | WIRELESS COMMUNICATION APPARATUS AND METHOD USING THE SAME - The present invention discloses a wireless communication method for transceiving packets in wireless networks. The method comprises the steps of: transmitting a first packet with a first packet format, wherein a header of the first packet with the first packet format comprises information of a first communication duration; and performing a communication procedure during the first communication duration for transmitting at least one second packet with a second format, for receiving at least one third packet with the second format, or for both transmitting the at least one second packet and receiving the at least one third packet. | 02-10-2011 |
20110019581 | METHOD FOR IDENTIFYING PACKETS AND APPARATUS USING THE SAME - A method for identifying packets comprises the steps of: obtaining a cumulative distribution function (CDF) and a probability distribution function (PDF) in accordance with a plurality of packets stored in an entry of a data flow table; obtaining a time interval under the condition of the CDF being a specified value; obtaining a ratio of the quantity of the plurality of packets included within a specified range around the time interval; determining whether attributes of the plurality of packets are substantially the same in accordance with the PDF; and identifying the plurality of packets in accordance with the ratio and whether the attributes of the plurality of packets are substantially the same. | 01-27-2011 |
20100324876 | SIMULATION METHOD FOR A WIRELESS COMMUNICATION SYSTEM INCLUDING MULTIPLE ANTENNAS AND MULTIPLE NODES - A simulation method for a wireless communication system with multiple antennas and multiple nodes is disclosed. The method adopts a separable correlation channel model to simulate a wireless communication system with multiple antennas and multiple nodes, wherein in this model the nodes in the same area are correlated, and the nodes in different areas are not correlated. | 12-23-2010 |
20100316094 | FLEXIBLE AND IN-BAND SIGNALING FOR NESTED PREAMBLE - A multi input multi output (MIMO) receiver is disclosed for transmitting and receiving packets having a preamble format of a packet of information and having a short training sequence (STS), a long training sequence (LTS) and signal (SIG) for training receivers, in accordance with an embodiment of the present invention. The packets having a preamble format for allowing data to be piggy-backed, e.g. transmitted and received using the physical layer rather than the transport layer of networking layers. | 12-16-2010 |
20100315952 | METHOD AND SYSTEM TO DETECT PACKETS OF DIFFERENT FORMATS IN A RECEIVER - A method and system of communicating packets and detecting packets are disclosed. In a first aspect, the method and system comprise enabling the detection of a very high throughput (VHT) signal field. The VHT signal field is distinguishable from other signal fields, wherein the VHT signal field allows for a backward compatibility with other devices. In a second aspect, the method and system comprise initializing the device to be in receive mode and receiving at least one signal field symbol and detecting the presence of additional signal field symbols. The method and system further include distinguishing a very high throughput (VHT) signal field from other signal field symbols and decoding the VHT signal field parameters uniquely describing the VHT packet format. | 12-16-2010 |
20100302982 | METHOD FOR RECEIVING PACKETS AND APPARATUS FOR USING THE SAME - An apparatus utilizes different channels for forwarding notification packets to at least one station and an access point. The station and the access point start or stop forwarding packets to the apparatus according to the notification packets. The station and the access point also temporarily store the packets to be forwarded to the apparatus and forward the packets to the apparatus after receiving a start notification packet from the apparatus. | 12-02-2010 |
20100302981 | METHOD AND APPARATUS FOR ROAMING IN A WIRELESS NETWORK - An apparatus for roaming in a wireless network updates received signal strength indication (RSSI) values in accordance with all types of frames forwarded from the access point with which the apparatus associates. In addition, the apparatus actively forwards null frames to the access point with which the apparatus associates and updates RSSI values in accordance with acknowledgement frames forwarded from the access point. | 12-02-2010 |
20100290333 | METHOD FOR ENHANCING ETHERNET CHANNEL IMPAIRMENT AND APPARATUS USING THE SAME - A method for enhancing Ethernet channel impairment comprises the steps of sending a sequence to a receiver in a slave transceiver by a master transceiver, and training cancellation filter coefficients of an echo canceller and a near-end cross talk canceller in the master transceiver before the receiver of the slave transceiver converges. | 11-18-2010 |
20100277362 | RADAR DETECTION METHOD AND APPARATUS USING THE SAME - A method for detecting radar signal comprises the steps of: receiving a signal by a receiver, wherein the strength of the received signal is controlled within a range; sampling the received signal so as to obtain a plurality of sampling values; dividing the sampling values into a plurality of segments; summing up the absolute values of the sampling values in each segment; and determining that the received signal includes radar signals if at least one summation is greater than a threshold. | 11-04-2010 |
20100266130 | METHOD FOR DISTRIBUTING KEYS AND APPARATUS FOR USING THE SAME - The method and apparatus for distributing keys according to the IEEE 802.11r standard broadcast at least one notify packet from a first access point to other access points within an extended service set when a station has connected to the first access point. If the R0 key holder identifier in a key request packet coming from a second access point matches the R0 key holder identifier held by the first access point, a key response packet is forwarded to the second access point to speed up the handoff procedure between the station and the second access point. | 10-21-2010 |
20100265930 | METHOD FOR SCANNING WIRELESS CHANNELS, APPARATUS AND SYSTEM FOR USING THE SAME - In order to obtain information related to operating channels of access points, the method receives lightweight beacons on a common channel. The method generates a channel scanning list in accordance with the content of the lightweight beacons and sequentially scans all the channels on the list. The method is capable of reducing the scanning time and the data loss rate during the scanning operation. | 10-21-2010 |
20100265929 | METHOD FOR DETERMINING A MODULATION AND CODING SCHEME - A method for determining a modulation and coding scheme for signals with packets of different lengths comprises the steps of: grouping signals according to their packet lengths, wherein each group has a weighting for each modulation and coding scheme; transmitting signals with different modulation and coding schemes; adjusting weights of each modulation and coding scheme of each group according to the quality of receiving the transmitted signals; determining a modulation and coding scheme according to the weightings of each modulation and coding scheme in the group corresponding to the packet length of the signal to be transmitted. | 10-21-2010 |
20100265928 | METHOD FOR SELECTING AN ACCESS POINT AND APPARATUS FOR USING THE SAME - The method generates a candidate list in accordance with the contents of frames transmitted by access points and sequentially performs the handshaking operations with the access points on the candidate list to select a personal identification number (PIN) enabled access point. During the candidate list generating process, this method places Wi-Fi protected setup (WPS) PIN-enabled access points at high priority positions but eliminates non-WPS access points and WPS push button configuration enabled access points. | 10-21-2010 |
20100265141 | ANTENNA AND WIRELESS TRANSCEIVER USING THE SAME - An antenna and a wireless transceiver are provided. The antenna includes: a substrate having first and second surfaces with circuits thereon; and two shield boxes located on the first and second surfaces for covering the circuits thereon. The shield boxes each comprise an antenna section and a shield section. The antenna sections are disposed at one side of the shield section and aligned with a margin of the substrate, and include signal ends electrically connected to the circuits and grounding ends electrically connected to the shield sections. The first antenna section is disposed on a diagonal opposite of the second antenna section flush with substrate margin or aligned with the substrate margin, thereby maximizing the distance between the two antennas disposed on the substrate, and preventing the two antennas from electromagnetic interference. The antennas are disposed on sides of the shield sections flush with substrate margins and thereby are space-saving. | 10-21-2010 |
20100254479 | METHOD FOR DETERMINING A MODULATION AND CODING SCHEME - A method for determining a modulation and coding scheme comprises the steps of: transmitting signals with different modulation and coding schemes and adjusting weighting of each modulation and coding scheme based on the quality of transmitted signals on a receiving end; adjusting the weighting of each modulation and coding scheme based on suggested modulation and coding schemes; determining a modulation and coding scheme to use according to the weighting of each modulation and coding scheme. | 10-07-2010 |
20100254322 | METHOD FOR ADJUSTING MODULATION AND CODING SCHEME BASED ON SIGNAL QUALITY - A method for adjusting a modulation and coding scheme based on signal quality comprises the steps of: determining a reference modulation and coding scheme based on signal reception qualities of transmitted signals according to a plurality of modulation and coding schemes; determining a temporary modulation and coding scheme according to a modulation and coding scheme selection method; determining a final modulation and coding scheme according to a first table and the differences between the reference modulation and coding scheme and the temporary modulation and coding scheme. | 10-07-2010 |
20100253409 | CLOCK GENERATION SYSTEM AND CLOCK DIVIDING MODULE - A clock gating system includes a clock divider, a first clock gating unit and a second clock gating unit. The clock divider is employed to generate clock signals with different frequencies. The first clock gating unit is configured for generating a gated clock to a first functional block, while the second clock gating unit is configured for generating a gated clock to a second functional block. Logically the first clock gating unit and the second clock gating unit are included in the first functional block and the to second functional block, respectively, and in physical layout the first clock gating unit and the second clock gating unit are disposed close to the clock divider. | 10-07-2010 |
20100246461 | POWER SAVING METHOD FOR WIRELESS ACCESS POINT - A power saving method for a wireless access point comprises the steps of detecting whether all wireless communication devices connected to the wireless access point are legacy apparatuses; and if affirmative, retaining one antenna for operation and disabling all other antennas. | 09-30-2010 |
20100240333 | METHOD AND APPARATUS FOR PROGRESSIVELY SCANNING CHANNELS - A method for progressively scanning channels first checks whether all channel scanning tasks are completed so as to determine a channel that will be scanned first. During the scanning process, the method records a channel as a last scanned channel after completing a channel scanning task for the channel. In addition, the method scans a channel with a valid service set identifier to increase the possibility of detecting hidden access points. | 09-23-2010 |
20100238946 | APPARATUS FOR PROCESSING PACKETS AND SYSTEM FOR USING THE SAME - An apparatus processes a packet and classifies the packet as a processed fast path packet or a slow path packet, wherein the processed fast path packet is forwarded to a fast path forwarding queue directly or is forwarded to a fast path output queue through a packet direct memory access controller. The apparatus not only improves the packet processing performance but also guarantees the quality of service. | 09-23-2010 |
20100211699 | WIRELESS ACCESS APPARATUS WITH FIRMWARE UPGRADING FUNCTION AND THE METHOD THEREOF - A wireless access apparatus comprises a memory, a connection interface, a microcontroller, and a network interface. The memory is configured for storing a firmware data, and the connection interface is configured for receiving firmware data to be upgraded. The microcontroller is configured for controlling a process of storing the firmware data to be upgraded in the memory, and the network interface is connected to the microcontroller. | 08-19-2010 |
20100208598 | METHOD AND APPARATUS FOR SCANNING CHANNELS IN WIRELESS LOCAL AREA NETWORK - Instead of scanning all the channels at once, the present method separates a channel scanning procedure into multiple channel scanning operations. The method reduces a data loss rate during the operation by returning to the operating channel an associated access point operates on in accordance with a return period for transceiving blocked packets. | 08-19-2010 |
20100202464 | METHOD AND APPARATUS FOR PRELOADING PACKET HEADERS AND SYSTEM USING THE SAME - A packet header preloading apparatus comprises at least a packet detector, at least a packet header buffer and at least a data dispatcher. The at least a packet detector is configured to detect an operation of a packet direct memory access controller storing at least a packet into a main memory. The at least a data dispatcher is configured to read a header of the at least a packet from the main memory and to temporarily store the header in the at least a packet header buffer. | 08-12-2010 |
20100202370 | METHOD FOR SELECTING MODULATION AND CODING SCHEME FOR MULTI-ANTENNA SYSTEM - A method for selecting modulation and coding scheme (MCS) for multi-antenna systems comprises the steps of: a multi-antenna system transmits signals according to MCSs of single spatial stream and determines an MCS accordingly. Subsequently, the multi-antenna system increases the number of the spatial streams applied, transmits signals according to the corresponding MCSs and determines an MCS accordingly until an optimum MCS is found. | 08-12-2010 |
20100202301 | METHOD FOR SWITCHING BETWEEN A LONG GUARD INTERVAL AND A SHORT GUARD INTERVAL AND MODULE USING THE SAME - The module for switching between a long guard interval and a short guard interval comprises a signal processing unit, a measurement unit, a comparison unit and a switching unit. The module receives a first data symbol, and the data symbol has one of a long guard interval and a short guard interval. The signal processing unit is configured to generate a second data symbol in accordance with the first data symbol. The measurement unit is configured to measure a portion of the first and second data symbols in order to generate a first measurement value and a second measurement value. The comparison unit is configured to generate an output signal by comparing the first and second measurement values with a threshold value. The switching unit is configured to selectively switch guard intervals of subsequent data symbols in accordance with the output signal. | 08-12-2010 |
20100185913 | METHOD FOR DECODING LDPC CODE AND THE CIRCUIT THEREOF - A method for decoding LDPC code comprises the steps of: marking non-zero sub-matrices of a parity-check matrix of an LDPC code as 1 and zero sub-matrices of the parity-check matrix as 0 to form a simplified matrix; rearranging the sequence of rows of the simplified matrix according to the dependency between these rows; and updating the LDPC code in accordance with the sequence of the rows. | 07-22-2010 |
20100183010 | METHOD AND APPARATUS FOR FORWARDING PACKETS - A method for forwarding packets first checks a forwarding table of a bridge to find whether the destination information for a packet is included in the forwarding table. If the information is found, this packet is forwarded to the destination through a physical layer directly without passing through the bridge. This method improves the efficiency of the frame aggregation of an AP (Access Point) and enhances the throughput in a WLAN (Wireless Local Area Network). | 07-22-2010 |
20100179975 | METHOD FOR DECOMPOSING BARREL SHIFTER, DECOMPOSED CIRCUIT AND CONTROL METHOD THEREOF - A method for decomposing a barrel shifter decomposes N, the number of digits of input word, into N | 07-15-2010 |
20100178891 | METHOD AND CIRCUIT FOR CALIBRATING ANALOG CIRCUIT COMPONENTS - A method for calibrating an analog circuit component comprises the steps of: generating a first signal with a baseband frequency; generating a second signal by processing the first signal via the analog component to be calibrated; generating a third signal by processing the second signal via a power amplifier, wherein the power amplifier operates in a nonlinear region; generating a fourth signal by processing the third signal via a low-pass filter; and defining the adjustment for the In-phase-Quadrature-phase imbalance (IQ imbalance) of the analog component and then re-executing the step of generating the first signal, if the fourth signal shows an IQ imbalance mismatch. | 07-15-2010 |
20100172425 | METHOD AND APPARATUS FOR CLOSED LOOP BEAMFORMING FOR MIMO OFDM WIRELESS COMMUNICATION SYSTEMS - Varying embodiments of the present invention describe a closed loop system for processing the beamforming information, qualifying the expected performance, activating and deactivating the beamforming system. A first embodiment is a method for closed loop beamforming in a wireless communication system, the system comprising a transmitter and a receiver, the method comprising initiating beamforming on a communication channel between the transmitter and the receiver, monitoring the communication channel, periodically determining a condition of the communication channel and controlling beamforming based on the condition of the communication channel. | 07-08-2010 |
20100156484 | FAST-RESPONSE PHASE-LOCKED LOOP CHARGE-PUMP DRIVEN BY LOW VOLTAGE INPUT - Phase-locked loop charge pump driven by low voltage input. In one aspect, a phase-locked loop circuit includes a phase frequency detector operating at a low voltage and providing low-voltage sourcing control signals and low-voltage sinking control signals at the low voltage. A charge pump operates at a high voltage and includes a sourcing control circuit coupled to the low-voltage sourcing control signals and selectively causing the charge pump to source the sourcing current to an output of the charge pump based on the low-voltage sourcing control signals. The charge pump also includes a sinking control circuit that receives the low-voltage sinking control signals and selectively causes the charge pump to sink the sinking current from the output of the charge pump based on the low-voltage sinking control signals. | 06-24-2010 |
20100142459 | METHOD FOR SELECTING MODULATION AND CODING SCHEME - A method for selecting a modulation and coding scheme (MCS) applied to a multiple-antenna system. The method calculates the throughout of a plurality of MCSs based on the signal to noise ratio of the multiple-antenna system and selects a MCS from the plurality of MCSs accordingly. | 06-10-2010 |
20100135320 | RATE ADAPTATION METHOD FOR COMMUNICATION SYSTEMS - A rate adaptation method comprises the steps of: updating the probability density function of the SNR of a transmitted signal according to the receiving status of the transmitted signal and the probability density function before update; and updating the transmission rate of the transmitted signal according the updated probability density function. | 06-03-2010 |
20100124210 | METHOD AND SYSTEM FOR RF TRANSMITTING AND RECEIVING BEAMFORMING WITH GPS GUIDANCE - A method for radio frequency transmitting and receiving beamforming using both GPS guidance and wireless access points is disclosed. The method comprises providing a wireless networking device with preloaded wireless access point locations; calculating a relative vector to an access point based upon at least one of the preloaded wireless access point locations; steering a transmitted beam with a sounding packet to the access point; calculating a channel condition by the access point; and sending a packet by the access point to the wireless networking device to establish a connection. | 05-20-2010 |
20100110804 | METHOD FOR READING AND WRITING A BLOCK INTERLEAVER AND THE READING CIRCUIT THEREOF - A method for writing a memory of a block interleaver determines in a bit-wise manner whether to write data into the memory. A method for reading a memory of a block interleaver combines two adjacent columns of the memory into a temporary column and reads data from the temporary column. | 05-06-2010 |
20100109798 | FRONT-END ARCHITECTURE OF RF TRANSCEIVER AND TRANSCEIVER CHIP THEREOF - An RF front-end architecture is operated in either a transmitting or a receiving mode. The RF front-end architecture comprises an antenna, an impedance match network, a balun and a transceiver chip. The transceiver chip comprises first and second transmit/receive (TR) switches, a transmitter, and a receiver. Because two TR switches are integrated into the chip, the printed circuit board area, BOM cost and pin count of the transceiver chip can be greatly reduced. | 05-06-2010 |
20100085270 | BALANCED PIFA AND METHOD FOR MANUFACTURING THE SAME - A balanced patched inverse F antenna comprises a radiation conductor and a balun circuit. The radiation conductor includes a main body, a first branch and a second branch. The balun circuit includes an unbalanced port, a balanced port, and first, second, third and fourth components, with the first, second, third and fourth components being serially connected. A feeding input of the unbalanced port is connected to the second and third components, a grounding wire of the unbalanced port is connected to the first and fourth components, an inverting terminal of the balanced port is connected to the first and second components, a non-inverting terminal of the balanced port is connected to the third and fourth components, and the inverting and non-inverting terminals are respectively connected to the first and second branches. | 04-08-2010 |
20100085259 | PLANAR ANTENNA - The present invention provides a planar antenna, including an inverted F-shaped antenna module having a first resonance unit, a second resonance unit and a linear feed-in unit, and a linear ground unit, wherein the linear ground unit is perpendicularly connected to the first and second resonance units to form a rectangular resonance cavity, the two resonance units have the same signal feed-in end but different widths, thereby resulting in different route lengths for generation of two sets of signals with different frequency responses. Further, by adjusting frequency bands of the two sets of signals with optimal responses to achieve a signal coupling resonance effect, signals with frequencies matching the resonant frequencies achieve high gain and high radiation efficiency and signals with frequencies different from the resonant frequencies are suppressed and cannot be efficiently radiated. | 04-08-2010 |
20100080324 | DEVICE AND METHOD FOR DC OFFSET CANCELLATION - A device and method for DC offset cancellation device are disclosed. The method includes keeping a high pass module at off state, converting an analog radio frequency signal to a digital baseband signal by a direct down conversion receiving module, detecting a DC offset value during the conversion by an offset compensation module so as to provide an offset compensation signal corresponding to the DC offset value to the direct down conversion receiving module, and determining whether a control condition is reached by a control module so as to timely switch on the high pass module for canceling the residual DC offset in the direct down conversion receiving module. In the present invention, the offset compensation module provides preliminary offset compensation signals and then the high pass module accurately cancels residual DC offset, thereby significantly reducing the reaction time for DC offset cancellation. | 04-01-2010 |
20100060338 | LEVEL SHIFTER WITH REDUCED LEAKAGE - The present invention relates generally to the level shifter circuits and more specifically to improved level shifter circuits providing for reduced leakage current and reduced power consumption. In one or more implementations, a method, apparatus and computer program product for level shifting input voltages by minimizing current leakage of a circuit coupled with an improved level shifting circuit is provided for. In one implementation the method includes providing a low voltage domain of the circuit, and providing for turning off the transistor if the low voltage domain of the circuit is not stable, and turning on the transistor if the low voltage domain of the circuit is stable. | 03-11-2010 |
20100054368 | METHOD AND SYSTEM TO DETECT PACKETS OF DIFFERENT FORMATS IN A WIRELESS RECEIVER - A method and system for detecting packets of different formats in a receiver is disclosed. The method and system include initializing the receiver to be in a legacy mode; and receiving at least one data symbol by the receiver. The method and system include detecting if there is a high throughput (HT) signal field within a data packet and determining the format of the data packet based upon the detection of a HT signal field. | 03-04-2010 |
20100030938 | CONTROLLER AND METHOD FOR DIRECT MEMORY ACCESS - A DMA controlling method comprises the steps of: building a linking table, wherein the linking table records the status of each memory block and of a pointer pointing to a next memory block; activating a first memory block; receiving an interrupt signal and linking to a next associated memory block after the first memory block finishes a data transfer; activating the next associated block; and updating the linking table to release the first memory block for reuse. | 02-04-2010 |
20100027612 | TRANSVERSAL FILTER - A transversal filter circuit comprises a plurality of delay units, a plurality of multiplexers and a plurality of full adders. The plurality of delay units is coupled in series to delay a two-bit input signal. The plurality of multiplexers is coupled to the plurality of delay units in a one-to-one manner, and outputs zero, a data signal, or the inverse of the data signal according to the output signals of the plurality of delay units. The plurality of full adders accumulates the outputs of the plurality of multiplexers and the MSB of the outputs of the plurality of the delay units. | 02-04-2010 |
20100027444 | METHOD AND SYSTEM FOR ESTABLISHING CONNECTIONS FOR WIRELESS NETWORK DEVICES - A method and system for establishing a connection for a wireless network device is provided. It allows a station to send a trigger signal to a multimedia receiving device. Upon receiving the trigger signal, the multimedia receiving device is prompted to reply to the station with a response signal. Upon receiving the response signal, the station is prompted to clone an identity information of the multimedia receiving device as its own identity information. The station is then allowed to be connected with a wireless network access device. By this way, the time for cloning the identity information of the multimedia receiving device in the station can be shortened, thus the overall connection establishment time can be reduced after the wireless network device is restarted. | 02-04-2010 |
20100020696 | UNSUPERVISED TRAFFIC ESTIMATION FOR LOW-POWER MEDIA STREAMING - A method and system for processing data streams is disclosed. In one embodiment, the method includes establishing a plurality of initial sample zones; establishing a plurality of wakeup zones; sampling a plurality of data packets based on the plurality of initial sample zones; estimating the traffic based on the sampling of the plurality of data packets; and modifying the wakeup zones based on the estimated traffic. According to the method and system disclosed herein, the traffic estimation enables a mobile station to optimize wakeup periods. | 01-28-2010 |
20090315611 | QUADRATURE MIXER CIRCUIT - A mixer is disclosed. In one embodiment, the mixer includes a polyphase filter that generates linear quadrature signals. The mixer also includes a potentiometric mixer that performs a frequency-conversion operation on the quadrature signal. According to the embodiments disclosed herein, the output of the potentiometric mixer has high linearity. | 12-24-2009 |
20090291643 | METHOD AND SYSTEM FOR MEASURING NOISE SIGNAL - A method and system for measuring noise signals are provided. The method includes configuring a receiving band of a wireless network signal receiving device and enlarging a receiving range of the wireless network signal receiving device to the maximum; sampling and/or analyzing signals received so as to obtain noise signal data, so as to debug and improve a wireless network equipment without a detecting device. | 11-26-2009 |
20090290547 | METHOD FOR SCHEDULING WIRELESS NETWORK PACKETS AND APPARATUS THEREOF - An apparatus for scheduling wireless network packets comprises a DMA, a wireless network packet scheduler, a FIFO buffer and a MAC circuitry. The DMA is configured to access different kinds of wireless network packets from memories through a bus. The wireless network packet scheduler is configured to control the DMA and to allocate the access ratio of the different kinds of wireless network packets based on a standard. The FIFO buffer is configured to store the received wireless network packets. The MAC circuitry is configured to receive the different kinds of wireless network packets from the FIFO buffer. | 11-26-2009 |
20090289731 | RESONATOR CIRCUIT AND VOLTAGE-CONTROLLED OSCILLATOR USING THE SAME - A resonator circuit applied to a voltage-controlled oscillator comprises a switch and a wiring inductance. The switch is connected to a first node and a third node. The wiring inductance has multiple circles, and circles a center from an outermost node to an innermost node through an intermediate node. The outermost node is connected to the first node, the intermediate node is connected to the third node, and the innermost node is connected to the second node. | 11-26-2009 |
20090267844 | WIDEBAND AND DUAL-BAND N-ORDER MONOPOLE ANTENNA AND PRINTED CIRCUIT BOARD THEREOF - A wideband and dual-band n-order monopole antenna comprises an antenna body, a 5 GHz band matching branch, a 5 GHz band first-order branch, a 5 GHz band second-order branch, a 2.4 GHz band branch and a 2.4 GHz band matching branch. The antenna body is shaped substantially like an inverted “L,” including a first side and a second side, wherein the first side is substantially perpendicular to the second side. The 5 GHz band matching branch extends from the first side. The 5 GHz band first-order branch extends from the first side and in parallel to the 5 GHz band matching branch. The 5 GHz band second-order branch extends from the second side and is perpendicular to the 5 GHz band first-order branch. The 2.4 GHz band branch is connected to the second side through an extending arm, the combination of the extending arm and the 2.4 GHz band branch being shaped substantially like an “L.” The 2.4 GHz band matching branch extends outward from the second side. | 10-29-2009 |
20090267662 | FAST RESPONSE PHASE-LOCKED LOOP CHARGE-PUMP DRIVEN BY LOW VOLTAGE INPUT - Phase-locked loop charge pump driven by low voltage input. In one aspect, a charge pump for a phase-locked loop circuit includes a sourcing current transistor providing a sourcing current, wherein the sourcing current transistor is coupled to a high-voltage operating voltage supply. A sourcing control circuit uses low-voltage sourcing control signals to selectively cause the charge pump to source the sourcing current to an output of the charge pump, and a sinking control circuit uses low-voltage sinking control signals to selectively cause the charge pump to sink the sinking current from the output. | 10-29-2009 |
20090262938 | METHOD FOR ENCRYPTING AND DECRYPTING WIRELESS SIGNALS AND APPARATUS THEREOF - An apparatus for encrypting wireless signals comprises an encryption engine, a transmit packet buffer and a transmit control logic. The encryption engine encrypts the wireless signals. The transmit packet buffer stores the encrypted wireless signals. The transmit control logic forwards the encrypted wireless signal from the transmit packet buffer to a wireless channel. | 10-22-2009 |
20090262862 | SIGNAL TRANSMITTING APPARATUS FOR OFDM SYSTEM AND PARAMETER ADJUSTING METHOD THEREOF - A signal transmitting apparatus for orthogonal frequency division multiplexing (OFDM) system comprises a compandor, a predistortor, a power amplifier and a feedback module. The compandor is configured to compress and expand a transmitted signal. The predistortor is configured to perform a predistortion operation on output signals of the compandor. The power amplifier is configured to amplify output signals of the predistortor. The feedback module is configured to adjust parameters of the compandor and the predistortor based on a feedback signal. | 10-22-2009 |
20090262004 | APPARATUS FOR DETECTING RADAR SIGNALS AND THE METHOD THEREOF - A method for detecting radar signals comprises the steps of: receiving signals detected by a master device; receiving signals detected by a slave device; detecting radar pulses from the signals received by the master device; detecting radar pulses from the signals received by the slave device; and determining radar signals by combining the radar pulses detected by the master device and slave device. | 10-22-2009 |
20090245400 | METHOD FOR SELECTION OF ERROR-CORRECTION CODE IN MIMO WIRELESS COMMUNICATION SYSTEMS - A method that selects an error-correction code for use in a multiple-input multiple output (MIMO) wireless communication system is disclosed that optimizes the performance of the MIMO wireless communication system. The method selects the error-correction code according to at least one system parameter and at least one channel parameter of the MIMO wireless communication system, such that the selected error-correction code matches the hardware configuration and channel setting of the MIMO wireless communication system. | 10-01-2009 |
20090213952 | METHOD FOR DEINTERLEAVING OFDM SIGNALS AND APPARATUS USING THE SAME - An apparatus for deinterleaving OFDM signals comprises a block deinterleaving memory, a computing module, a processed-tone buffer and a subcarrier rotator. The block deinterleaving memory is configured to store unprocessed symbols of the OFDM signals. The computing module is configured to access the block deinterleaving memory in accordance with the order of a first interleaving action for the OFDM signals and to compute thereafter. The processed-tone buffer is configured to store processed symbols of the OFDM signals. The subcarrier rotator is configured to access the processed-tone buffer and to perform a second interleaving action for the OFDM signals. | 08-27-2009 |
20090213824 | Wireless local area network packet transmitting and receiving system - A wireless local area network transmitting and receiving system includes a network driver interface, a random network layer, an infrastructure layer, a packet format conversion module and a distributed module. The packet format conversion module provides the wireless local area network with bridges to receive and convert wireless local area packets of the infrastructure layer, and then executes processes of transmitting and receiving the wireless local area network packets instructed by the network driver interface. The distribution module is connected to the infrastructure layer and the random network layer and then transmits the wireless local area network packets. | 08-27-2009 |
20090179701 | FAST SWITCH FOR CONTROLLING A DIFFERENTIAL-PAIR AMPLIFIER - A differential-pair amplifier comprising a transistor pair. The differential-pair amplifier includes a current source coupled to the transistor pair for providing a bias current to the transistor pair. The differential-pair amplifier also includes a switching mechanism coupled to the transistor pair for steering the bias current away from the transistor pair when disabling the amplifier operation. A system and method in accordance with the present invention allows fast enabling and disabling of a differential-pair amplifier. This fast switching technique can be used in the signal paths where the switching time is critical. | 07-16-2009 |
20090178833 | SLICED ELECTROMAGNETIC CAGE FOR INDUCTORS - A system within a circuit is disclosed. The system comprises a first shield and a device above the first shield. The system also includes a plurality of conductive walls coupled to and extending from the first shield to block electromagnetic (EM) waves to other parts of the circuit. A system and method in accordance with the present invention adds metal walls on the edge of a sliced shield. The walls block the electromagnetic wave from coupling to other parts of the circuit from a sideways direction. The use of this structure allows for more compact layout placement with insignificant degradation. | 07-16-2009 |
20090161798 | WIRELESS RECEIVING SYSTEM WITH AN ADAPTIVELY CONFIGURABLE ANALOG TO DIGITAL CONVERTER - A circuit is disclosed that comprises a controller and an analog to digital converter (ADC) coupled to controller. The speed and/or the resolution of the ADC is configurable to provide optimum performance during the operation of the ADC. In an embodiment a wireless receiver with an adaptively configurable ADC for is provided. The speed and resolution the ADC is configurable depending on the operational mode of the receiver. Accordingly, through the use of an adaptively configurable ADC, power consumption and speed is optimized for each operational mode. | 06-25-2009 |
20090160696 | CONFIGURABLE RADAR DETECTION AND AVOIDANCE SYSTEM FOR WIRELESS OFDM TRANCEIVERS - The present invention relates generally to wireless transceivers, and more particularly but not exclusively to radar detection and avoidance methodologies for wireless devices including transceivers. In one or more implementations, a method for detecting radar operating in the unlicensed 5.25-5.35 and 5.47-10.725 GHz radio bands, using wireless devices, such as WiFi AP, are provided. A WiFi AP is used to automatically detect the presence of radar on all channels in these bands, alert all of its clients, and move to another channel that is known to be devoid of radar using one or more implementations. | 06-25-2009 |
20090147732 | METHOD FOR ADJUSTING TRANSMISSION SPEED OF WIRELESS NETWORK - A method for adjusting a transmission speed of a wireless network comprises the steps of: setting a transmission mode, wherein the transmission mode is either an idle mode or a traffic mode; setting an environmental case, wherein the environmental case is either an ideal case or a corner case; determining a transmission speed adjusting algorithm according to the transmission mode and environmental case; and determining an updated transmission speed according to the transmission speed adjusting algorithm. | 06-11-2009 |
20090129355 | APPARATUS OF TRANSMITTING PACKETS OF WIRELESS LOCAL NETWORK AND METHOD FOR USING THE SAME - An apparatus for transmitting packets of a wireless local area network comprises a packet buffer area, a host controller and a timer. The packet buffer area is configured to temporarily store a plurality of packets. The host controller is configured to aggregate and control the plurality of packets in the packet buffer area. The timer is used to determine whether there are time-limited packets in the packet buffer area. While the host controller is aggregating the packets in the packet buffer area, an aggregation busy flag is enabled; and when the packet buffer area is outputting the time-limited packets, a timer busy flag is enabled. | 05-21-2009 |