Patent application number | Description | Published |
20090189769 | COMMUNICATION DEVICE AND AN ELECTRIC CIRCUIT FOR A COMMUNICATION DEVICE - An electric circuit for a communication device ( | 07-30-2009 |
20090280753 | Method of Checking the Integrity of an Antenna Arrangement, Transmitter, Receiver and Transceiver - In a method of checking the integrity of an antenna arrangement ( | 11-12-2009 |
20100248653 | TRANSCEIVING CIRCUIT FOR CONTACTLESS COMMUNICATION - A transceiving circuit ( | 09-30-2010 |
20100321128 | TRANSCEIVING CIRCUIT FOR CONTACTLESS COMMUNICATION - A transceiving circuit ( | 12-23-2010 |
20110014883 | Transmitting circuit for a contactless communicating communication partner device - In a communication partner device ( | 01-20-2011 |
20110043429 | TRANSCEIVING CIRCUIT FOR CONTACTLESS COMMUNICATION AND NFC DEVICE OR RFID READER/WRITER DEVICE COMPRISING SUCH A TRANSCEIVING CIRCUIT - A transceiving circuit ( | 02-24-2011 |
20110053503 | RADIO FREQUENCY COMMUNICATION DEVICE AND METHOD FOR OPERATING THE SAME - A radio frequency (RF) communication device ( | 03-03-2011 |
20130109312 | RADIO FREQUENCY-COMMUNICATION DEVICE AND METHOD FOR OPERATING THE SAME | 05-02-2013 |
20130281019 | TRANSMITTING CIRCUIT FOR A CONTACTLESS COMMUNICATING COMMUNICATION PARTNER DEVICE - In a near field communication partner device ( | 10-24-2013 |
20130321230 | ACTIVE LOAD MODULATION ANTENNA - Active load modulation antennas for contactless systems typically require the presence of a battery power source in the transponder device. The transponder typically cannot be powered by the reader device alone and also transmit an active load modulation signal. Embodiments in accordance with the invention are disclosed that allow transponder devices to transmit an active load modulation signal when powered only by the reader in the contactless system. | 12-05-2013 |
20140018017 | NFC DEVICE FOR CONTACTLESS COMMUNICATION - An NFC device for contactless communication comprises transmitter means being adapted to generate an electromagnetic carrier signal and to modulate the carrier signal according to transmitting data, and an antenna having an inductor, which antenna is connected to and driven by the transmitter means with the modulated carrier signal. AC coupling capacitors are coupled to the inductor of the antenna, wherein the AC coupling capacitors are further connected to inputs of switches. The outputs of these switches can be switched between ground potential and inputs of rectifier means. The outputs of the rectifying means are fed to power supply rails of the NFC device. | 01-16-2014 |
20140179226 | RADIO FREQUENCY-COMMUNICATION DEVICE AND METHOD FOR OPERATING THE SAME - A radio frequency communication device has data transmission means and data receiving means. The data transmission means comprise load modulating means being adapted to receive a radio frequency carrier signal emitted by another RF communication device and to modulate the RF carrier signal by means of load modulation in accordance with data to be sent. The data receiving means comprise a RF frequency carrier signal generator being adapted to emit a radio frequency carrier signal and load demodulating means being connected to an emission path of the radio frequency carrier signal and demodulating the radio frequency carrier signal when it has been load modulated by another RF communication device. | 06-26-2014 |
20140295756 | NFC DEVICE FOR CONTACTLESS COMMUNICATION - A Near Field Communication (NFC) device for contactless communication includes a transmitter being adapted to generate an electromagnetic carrier signal and to modulate the carrier signal according to transmitting data, an antenna having an inductor, which antenna is connected to and driven by the transmitter with the modulated carrier signal, and wherein connection points of the antenna are further connected to inputs of switches, the outputs of these switches being switchable between ground potential and inputs of a rectifier, the outputs of the rectifier being fed to power supply rails of the NFC device. | 10-02-2014 |
20140335784 | NFC Architecture - Disclosed is an integrated circuit, system or architecture suitable for NFC functionality and including an NFC companion block connectible to a power source and capable to providing a non-continuous power boost to NFC signals, inter alia, thereby facilitating use of a broader range of antennas, multiple antennas, and thereby providing greater | 11-13-2014 |
20150031315 | RF DEVICE AND METHOD WITH IMPROVED ACTIVE LOAD MODULATION CAPABILITY - There is described an RF bidirectional communication device utilizing active load modulation, the device comprising (a) a resonance circuit including an antenna ( | 01-29-2015 |