Patent application number | Description | Published |
20080284646 | USE OF BROADCAST POSITION DATA FOR SUBSEQUENT GPS LOCATION FIX - A radio device that is capable of positioning itself within a broadcast radio system includes a radio receiver operable to receive a plurality of broadcast radio signals, each broadcast from a respective one of a plurality of broadcast radio signal sources, and a GPS receiver coupled to receive a broadcast parameter determined using the broadcast radio signals and operable to calculate a GPS location of the radio device using the broadcast parameter. | 11-20-2008 |
20080291086 | POSITION DETERMINATION USING AVAILABLE POSITIONING TECHNIQUES - A radio device that is capable of positioning itself using one or more available positioning techniques includes a selection parameter defined to enable selection of at least one of the available positioning techniques supported by the radio device for use in calculating the location of the radio device. At least one of the positioning techniques supported by the radio device is a broadcast positioning technique that uses broadcast radio signals broadcast from radio stations to calculate the location of the radio device. | 11-27-2008 |
20090096667 | Communication System with Assisted GPS and SBAS - A communication system includes a reference station and a mobile station. The reference station is operable to: receive GPS signals; generate GPS assisting data from the received GPS signals; receive SBAS signals; obtain SBAS data from the received SBAS signals; combine the GPS assisting data and the SBAS data to produce combined GPS data; and transmit the combined GPS data via a terrestrial wireless communication. The mobile station is operable to: receive the GPS signals; receive the combined GPS data via the terrestrial wireless communication; and generate positioning data from the mobile received GPS signals and the combined GPS data. | 04-16-2009 |
20090111516 | RFID READER INTEGRATED WITH WIRELESS COMMUNICATION DEVICE - An integrated RFID reader and wireless communication device is realized by a radio frequency (RF) front end operable, in a first mode, to generate a radio frequency identification system (RFID) outbound radio frequency (RF) signal, to receive an RFID inbound RF signal responsive to the RFID outbound RF signal and to convert the RFID inbound RF signal to an RFID near baseband signal, and operable in a second mode, to generate a transceiver outbound radio frequency (RF) signal, to receive a transceiver inbound RF signal and to convert the transceiver inbound RF signal to a transceiver near baseband signal. The integrated device further includes a digitization module operable, in the first mode, to convert the RFID near baseband signal to an RFID digital baseband signal, and operable, in a second mode, to convert the transceiver near baseband signal to a transceiver digital baseband signal, and a baseband processing module operably coupled, in the first mode, to convert the RFID digital baseband signal into inbound RFID digital data, and operably coupled, in the second mode, to convert the transceiver digital baseband signal into inbound transceiver digital data. | 04-30-2009 |
20090207025 | TRANSMITTER AND RECEIVER FOR COMBINING RFID AMPLITUDE-MODULATED DATA WITH WIRELESS PHASE-MODULATED DATA - A transmitter and receiver for combining RFID amplitude-modulated data with wireless phase-modulated data is realized by a processing module coupled to generate outbound non-amplitude modulated symbols from first outbound data, to generate outbound amplitude modulated symbols from second outbound data, to generate first inbound data from inbound non-amplitude modulated symbols, and to generate second inbound data from inbound amplitude modulated symbols, a combiner coupled to modulate the amplitude modulated symbols onto a signal carrying the non-amplitude modulated symbols to produce a combined outbound RF signal and a splitter coupled to convert a combined inbound RF signal into inbound non-amplitude modulated symbols and into inbound amplitude modulated symbols. | 08-20-2009 |
20090302966 | METHOD AND SYSTEM FOR OPTIMAL FREQUENCY PLANNING FOR AN INTEGRATED COMMUNICATION SYSTEM WITH MULTIPLE RECEIVERS - Methods and systems for optimal frequency planning for an integrated communication system with multiple receivers may include adjusting a center frequency of a low IF signal to reduce interference by a second order interference signal. The center frequency may be adjusted to avoid high power portions of the second order interference signal. The interference level corresponding to a center frequency may be determined by, for example, a SNR of the low IF signal, or by determining a BER for the low IF signal. The center frequency of the low IF signal may be dynamically adjusted to keep second order interference level at an acceptable level. Adjusting the center frequency of the low IF signal may also comprise keeping the low IF signal from being blocked by a DC component of the second order interference signal. | 12-10-2009 |
20100007466 | SYSTEMS AND METHODS FOR RFID SECURITY - An RFID system includes an RFID tag, an RFID reader, and a server. The RFID tag communicates to the server via encrypted information. The information may be encrypted with synchronized encryption keys. In this manner, the reader need not decrypt the information from the RFID tag. The effectiveness of malicious readers is thereby reduced, resulting in improved RFID tag security. | 01-14-2010 |
20100099355 | RFID READER ARCHITECTURE - A highly integrated and low-cost reader for a radio frequency identification (RFID) system is realized by providing a transmitter operable to generate an outbound radio frequency (RF) signal and a receiver operable to receive an inbound RF signal having a frequency similar to a frequency of the outbound RF signal on a single integrated circuit. Since the inbound RF signal may include not only a modulated RF signal produced by an RFID tag responsive to the outbound RF signal, but also a blocking signal corresponding to the outbound RF signal, the receiver additionally includes a block cancellation module operable to substantially cancel the blocking signal from the inbound RF signal using the outbound RF signal and to substantially pass the modulated RF signal before down-conversion of the modulated RF signal. | 04-22-2010 |
20130316648 | WIRELESS COMMUNICATION DEVICE WITH RFID READER - A wireless communication device is provided with separate processing modules for a transceiver and a near field communication (NFC) device. The NFC processing module is configured to generate outbound NFC data and to process inbound NFC data, while the transceiver processing module is configured to generate outbound transceiver data and to process inbound transceiver data. A shared radio frequency (RF) front end transmits and receives combined radio frequency (RF) signals including both NFC data and transceiver data. | 11-28-2013 |