Datamars Sa

Assa Abloy Ab

Assa Abloy Czech & Slovakia S.r.o.

Carlo Secondo Mutti

Enrico Malacarne

Mauro Di Domenico

Christian Narvaez

Davide Spedaliere

Hassan-Zade Parvis

A passive entry system, in particular for a motor vehicle, comprising: a mobile device to be carried by a user, said mobile device comprising a low-frequency transceiver for short range communication, an ultra-high-frequency transceiver for long range communication and information concerning access, such as an access code, which is transmittable by said transceivers; and a locking device which is to be unlocked by the mobile device, said locking device comprising a low-frequency transceiver for short-range communication and an ultra-high frequency transceiver for long range communication to receive said information concerning access, such the access code. The transceivers of the mobile device communicates with the transceiver of the locking device and exchange information concerning access, such as said access code, to the locking system via the respective transceivers, wherein the communication range of the ultra-high-frequency transceiver of the mobile device is limited to a short range in a normal operating mode of the mobile device.

Solutions for relay attacks on passive keyless entry and go

The present invention is directed toward the recovery of RFID signals from RFID credentials. The recovery and subsequent interpretation of RFID signals may be accomplished by providing a set of predetermined probabilities for the occurrence of a symbol after another symbol in a received signal. The predetermined probabilities may be dependent only upon the encoding scheme used, thereby providing a more robust and less processor intensive decoding protocol than has previously been contemplated.

Decoding scheme for RFID reader

A radio frequency identification (RFID) system is described, including a low frequency read-write device (B) comprising an antenna (B) connected to a transceiver (B), for receiving/transmitting low RF waves from/to an RFID tag (B), and a decoder (B) for decoding said low RF waves into digital data (dig-B); an host computer () is intended to be connected to the low frequency read-write device (B) for processing digital data (dig-B). The RFID system further includes a high frequency read-write device (A), comprising an antenna (A) connected to a transceiver (A), for receiving/transmitting high RF waves from/to an RFID tag (A), and a decoder (A) for decoding said high RF waves into digital data (dig-A); the high frequency read-write device is connected to a low frequency read-write device (B) and to an host computer () respectively through a driver connection () and an host connection (). A bundle interface (ITF), receives digital data (dig-A, dig-B) through the driver connection () while a flow controller (SW) drives the flow of such digital data (dig-A, dig-B) through host connection () and towards the host computer ().

Combined low and high frequency RFID system

The invention relates to a radio frequency (RF) system and method for improving the detection efficiency of an identification system including a transponder and a reader. The system () comprises an interrogator reader device () having an interrogator coil antenna () and a transponder () having a transponder coil antenna () and a microchip () Advantageously, the interrogator reader device () comprises a detection portion () including a sensitive signal gain detector (SSGN) for detecting just the presence of the transponder coil antenna () in case of misplacement of the transponder or broken link between the transponder coil antenna () and the microchip (). The invention allows remedying to those potentially dangerous situations that might lead to a misdetection of the transponder ().

Growing community of inventors

Origlio, Switzerland

Carlo Secondo Mutti