Nokia Corporation

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Nokia Technologies Oy

Bertrand Gomez

Jaakko Varteva

Jari-Jukka Harald Kaaja

Joni Jorma Marius Jantunen

Joni Jantunen

Eric Colinet

Jarmo Tapani Arponen

Michael Pelissier

Risto Heikki Sakari Kaunisto

Michaël Pelissier

Iiro Jantunen

Jaakko Valtteri Varteva

Jarmo Arponen

An apparatus, a computer program product and a method is provided for data accessing during wireless communication. The example embodiment comprises receiving, through a transceiver at an apparatus, a first wireless signal comprising payload data and one or more indications instructing write operation for the payload data (), and powering down the transceiver at least partly while storing the received payload data into an associated memory () within the apparatus according to the one or more indications.

Data access during wireless communication

A method and apparatus of synchronizing pulsed wireless communication between a first transceiver and a second transceiver. It includes the steps of transmitting a pulse signal from a first transceiver to a second transceiver; transmitting a reflection signal from the second transceiver to the first transceiver if the transmitted pulse signal is received at the second transceiver within an active reception period of the second transceiver; and detecting the reflection pulse to determine synchronization between the first transceiver and the second transceiver. Embodiments of the invention also relate to an apparatus for carrying out the method. In one embodiment, the reflection signal is generated by a super-regenerative oscillator.

Method of and apparatus for synchronization

The portable object is equipped with an antenna inductively coupled to a fixed station of a remote transmission device. The portable object comprises a variable load impedance and a rectifier connected in parallel to the terminals of the antenna, a regulation loop of the voltage at the terminals of the load impedance, connected between the output of the rectifier and a control terminal of the load impedance. The regulation loop comprises, in series, means for determining a difference between a setpoint voltage and the output voltage of the rectifier, a one-bit analog-to-digital converter, and command means of integrator type. The command means comprise a gain control input connected to an output of the gain control means receiving on input signals representative of the difference. Demodulation means are connected to the output of the converter.

Portable object inductively coupled to a fixed station and comprising gain control means

A super-regenerative transceiver that has an antenna interface for an antenna is self-tuned with a self-tuning unit configured. The self-tuning unit makes the transceiver to repeatedly perform a self-tuning cycle until the amplitude meets a predetermined detection condition or a predetermined criterion is met. The self-tuning cycle involves the following: transmitting to the antenna a probe signal with one or more pulses; receiving from the antenna a ringing detection signal; determining if the ringing detection signal reflects tails of the probe signal with amplitude meeting a predetermined detection condition; and adjusting of the tuning of the super-regenerative transceiver if the amplitude does not meet the predetermined detection condition.

Radio unit reconfiguration

Growing community of inventors

Meylan, France

Bertrand Gomez