Patent application number | Description | Published |
20090028115 | HYBRID WLAN-GSM DEVICE SYNCHRONIZATION TO ELIMINATE NEED FOR COSTLY FILTERS - A multi-mode WLAN-GSM communications device ( | 01-29-2009 |
20090207767 | CYCLED RECEIVER FOR MOBILE WIRELESS DEVICES - A wireless device ( | 08-20-2009 |
20090285167 | SCHEDULED COEXISTENCE - The present invention provides a system and a method for improving the wireless local area network (WLAN) throughput performance in a collocated WLAN/Bluetooth system that uses packet traffic arbitration (PTA) to schedule WLAN and Bluetooth transmissions. The method includes detecting a Bluetooth transmission, where the Bluetooth transmission comprises one or more quiet periods; and scheduling a WLAN transmission, where frames of the WLAN transmission are received during the quiet periods of the Bluetooth transmission. The method according to the present invention allows the collocated WLAN to receive a frame send by the access point (AP) and acknowledge its reception without the AP reducing the data transmission rate due to unacknowledged frames. Also, the present invention discloses a mechanism where a collocated Bluetooth device (BTD) and WLAN device can communicate to the AP through a single antenna. | 11-19-2009 |
20090316667 | GSM HARMONIC EMISSION DESENSITIZATION IN 5-GHZ WLAN - A method for improving data communication quality in collocated GSM and WLAN subsystems. The GSM device can spuriously emit third harmonics whose frequencies depends on which GSM channel is presently being used. The WLAN receiver uses OFDM subcarriers that can be interfered with by third harmonics of particular ones of the GSM channels. Which OFDM subcarriers would be adversely affected by a particular one of the GSM channels being in use is computed. Then a corresponding particular OFDM subcarrier is deleted after a FFT process and before Viterbi decoding. | 12-24-2009 |
20100045441 | NEAR FIELD COMMUNICATION (NFC) ACTIVATION - The present invention discloses a method and a system for activating a communication device in presence of a field generated by a near field communication (NFC) tag reader in a near field communication (NFC) environment. The presence of a field generated by a NFC tag reader is automatically detected using detection circuits. Once the field is detected, the presence of the field is signaled to the communication devices associated with the NFC environment. The communication devices are then switched automatically to an appropriate mode according to the field. The method and system of the present invention removes the additional user interaction in pairing various communication devices in the NFC environment. | 02-25-2010 |
20100048131 | BLUETOOTH MICROPHONE ARRAY - The present invention discloses a wireless telephone system using microphone arrays together with additional signal processing to suppress the background noise in the surrounding environment. The signal processing resources of a wireless telephone and multi-channel transmission capabilities of the Bluetooth transmission are used to suppress the background noise. The wireless telephone system includes a Bluetooth transceiver communicating to a wireless telephone through a multi-channel Bluetooth transmission, and an array of microphones coupled to the Bluetooth transceiver. The array of microphones includes a first microphone producing a first audio signal output and a second microphone producing a second audio signal output. The first audio signal output and second audio signal output are transmitted to the wireless telephone through the first channel and second channel of multi-channel Bluetooth transmission respectively. The system and method of the present invention allows using low cost Bluetooth transceiver(s) with multiple microphone arrays to provide the background noise suppression. | 02-25-2010 |
20100056051 | COEXISTANCE DEVICE COMMUNICATION - The present invention provides a system and a method for transferring data between a Bluetooth device (BTD) and a wireless local area network (WLAN) device which uses packet traffic arbitration (PTA). The method of the present invention includes encoding data using a plurality of control lines between the BTD and WLAN, transmitting the data and acknowledging the data reception using the existing control lines. The method according to the present invention allows BTD and WLAN device to transmit additional scheduling information, schedule the medium access, and reduce the number of collisions between the two devices. | 03-04-2010 |
20100080205 | RATE RECOVERY MECHANISIM, METHOD AND SYSTEM FOR A WLAN-BLUETOOTH COEXISTANCE SYSTEM - In accordance with the invention, a method and system relating to the rate recovery mechanism in a Wireless Local Area Network (WLAN) and Bluetooth coexistence system is provided. | 04-01-2010 |
20100167643 | DEVICE WITH AN EEPROM HAVING BOTH A NEAR FIELD COMMUNICATION INTERFACE AND A SECOND INTERFACE - A device and a method for programming the read/writeable memory of the RFID circuitry by communications between either RF antenna ( | 07-01-2010 |
20100232401 | WIRELESS LOCAL AREA NETWORK SCAN BASED ON LOCATION - A system, apparatus and methods are described that define the frequency in which a scan for a wireless local area network access point ( | 09-16-2010 |
20100284381 | METHOD AND SYSTEM FOR OPERATING A WIRELESS ACCESS POINT IN THE PRESENCE OF BURSTY INTERFERENCE - A method and system for operating a wireless access point is disclosed. In an embodiment, a wireless access point determines whether bursty interference is present within the operating range of the wireless access point and then adapts a transmission characteristic in response to the determination. In an embodiment, the wireless access point determines whether bursty interference is present by changing at least one transmission characteristic and monitoring the resulting error rates. The presence of bursty interference can be detected if a lowering of the transmission rate causes an increase in the error rate. The increase in the error rate is a result of the lower transmission rate and corresponding longer transmission time for each frame, which in turn increases the likelihood that a frame will overlap with bursty interference. | 11-11-2010 |
20110194506 | WIRELESS COMMUNICATIONS ARRANGEMENT, NETWORK AND APPROACH THEREFOR - Wireless communications over different networks using overlapping signal channels is facilitated. According to an example embodiment, information characterizing the usage of an overlapping channel by a first network is used to schedule communications on the overlapping channel by the second network. Another example embodiment is directed to the use of existing coexistence control lines between collocated communications circuits in a wireless device to communicate data indicative of the use of the overlapping channel. In some applications, these communications approaches are used with a network device operating on different networks, such as with a handheld device that communicates on both a Bluetooth network and wireless local area network (WLAN). | 08-11-2011 |
20120155510 | Method And System For Message Transmission And Reception - Wireless devices may contain multiple radio transceivers, each conforming to different communication protocols. A first transceiver conforming to a first communication protocol in a first wireless device may be able to receive, detect, and/or decode messages transmitted by a second transceiver in a second wireless device conforming to a second communication protocol. The first transceiver may communicate received, detected, and/or decoded information to a different transceiver in the same first wireless device, thus enabling the collocated transceivers to work in concert efficiently. A wideband transceiver using a set of multiple sub-channels in parallel may receive, detect, and/or decode messages transmitted by a narrowband transceiver using a set of multiple channels serially, thereby reducing scan time and power consumption. | 06-21-2012 |
20120322375 | DEVICE WITH AN EEPROM HAVING BOTH A NEAR FIELD COMMUNICATION INTERFACE AND A SECOND INTERFACE - A peripheral device and a method for programming the read/writeable memory of the RFID circuitry by communications between either RF antenna or bus communications port controller interface or both. In the peripheral device, an EEPROM, bus communications controller interface, NFC interface, antenna, and logic controller operate to receive and transmit configuration and calibration data between a BLUETOOTH circuit and an external BLUETOOTH enabled device. The dual interfaced EEPROM is operable to share or partition its EEPROM between an NFC interface and a bus communications controller. | 12-20-2012 |
20130095883 | Method And System For Message Transmission And Reception - Wireless devices may contain multiple radio transceivers, each conforming to different communication protocols. A first transceiver conforming to a first communication protocol in a first wireless device may be able to receive, detect, and/or decode messages transmitted by a second transceiver in a second wireless device conforming to a second communication protocol. The first transceiver may communicate received, detected, and/or decoded information to a different transceiver in the same first wireless device, thus enabling the collocated transceivers to work in concert efficiently. A wideband transceiver using a set of multiple sub-channels in parallel may receive, detect, and/or decode messages transmitted by a narrowband transceiver using a set of multiple channels serially, thereby reducing scan time and power consumption. | 04-18-2013 |
20130231048 | DEVICE WITH AN EEPROM HAVING BOTH A NEAR FIELD COMMUNICATION INTERFACE AND A SECOND INTERFACE - A peripheral device and a method for programming the read/writeable memory of the RFID circuitry by communications between either RF antenna or bus communications port controller interface or both. In the peripheral device, an EEPROM, bus communications controller interface, NFC interface, antenna, and logic controller operate to receive and transmit configuration and calibration data between a wireless personal area network circuit and an external wireless personal area network enabled device. The dual interfaced EEPROM is operable to share or partition its EEPROM between an NFC interface and a bus communications controller. | 09-05-2013 |
20140349574 | Device with an EEPROM Having Both a Near Field Communication Interface and a Second Interface - A peripheral device and a method for programming the read/writeable memory of the RFID circuitry by communications between either RF antenna or bus communications port controller interface or both. In the peripheral device, an EEPROM , bus communications controller interface, NFC interface, antenna, and logic controller operate to receive and transmit configuration and calibration data between a wireless personal area network circuit and an external wireless personal area network enabled device. The dual interfaced EEPROM is operable to share or partition its EEPROM between an NFC interface and a bus communications controller. | 11-27-2014 |