| INNOVISION RESEARCH & TECHNOLOGY PLC Patent applications |
| Patent application number | Title | Published |
|---|
| 20120126877 | DEMODULATION MIXING FOR A NEAR FIELD COMMUNICATIONS (NFC) DEVICE - An in-phase, quadrature phase (IQ) mixer for a near field communications (NFC) device is disclosed that includes a signal provider that provides an in-phase (I) mixing signal and a quadrature phase (Q) mixing signal so that the period of the I mixing signal is equal to a period for the Q mixing signal. A controller is configured to control the signal provider so that the average of the I mixing signal over two periods is minimized and the average of the Q mixing signal over two periods is also minimized. The controller is also configured to control the signal provider so that the average propagation delay for the I mixing signal and the Q mixing signal is minimized individually and relative to each other. | 05-24-2012 |
| 20120028574 | NEAR FIELD RF COMMUNICATORS - A near field RF communicator has an inductive coupler ( | 02-02-2012 |
| 20110189953 | Near Field Communications, NFC, Communicators and NFC Communications Enabled Devices - A NFC communicator or NFC communications enabled device has a data store to store data, an inductive coupler to couple inductively with the magnetic field of a radio frequency signal and a signal supplier to supply a radio frequency signal to the inductive coupler. A modulator is provided to modulate a radio frequency signal in accordance with data and a demodulator is provided to extract data from a modulated radio frequency signal inductively coupled to the coupler A controller enables the NFC communicator or NFC communications enabled device both to initiate near field radio frequency communication with another near field RF communicator and to respond to near field radio frequency communication initiated by another near field RF communicator. The inductive coupler has an antenna and a variable impedance element and the controller is operable to control the variable impedance element to control a magnetic field strength associated with a radio frequency signal supplied by the signal supplier. | 08-04-2011 |
| 20100291871 | NEAR FIELD RF COMMUNICATORS - A near field RF communicator has an antenna circuit ( | 11-18-2010 |
| 20100291870 | NEAR FIELD RF COMMUNICATORS - A near field RF communicator has an antenna circuit ( | 11-18-2010 |
| 20100112941 | NFC COMMUNICATORS - An NFC communicator has an antenna circuit to enable inductive coupling, via an RF H field, of the NFC communicator and another near field RF communicator in near field range. The antenna circuit has an antenna element coupled in parallel with a first capacitor to form a parallel LC circuit. The antenna element has an antenna coil in series with a second capacitor to reduce the voltage to which circuitry of the NFC communicator is subjected by a received RF H field. Alternatively or additionally, receive circuitry of the NFC communicator may be coupled to only a proportion of the antenna coil to reduce the voltage to which circuitry of the NFC communicator is subjected by a received RF H field. | 05-06-2010 |
| 20090312011 | COMMUNICATIONS DEVICES COMPRISING NEAR FIELD RF COMMUNICATORS - A communications device has a near field RF communicator ( | 12-17-2009 |
| 20090088077 | Communications Apparatus - Communications apparatus has a short range wireless radio frequency communicator ( | 04-02-2009 |
| 20090011706 | Near field RF communicators and near field communications-enabled devices - A near field RF communicator has an inductive coupler ( | 01-08-2009 |
| 20080272889 | Nfc Communicators and Nfc Communications Enabled Devices - A NFC communicator or NFC communications enabled device ( | 11-06-2008 |
| 20080246667 | Near Field Communications, Nfc, Communicators and Nfc Communications Enabled Devices - A NFC communicator or NFC communications enabled device ( | 10-09-2008 |
