Nxp B.v.

U.S. Philips Corporation

Koninklijke Philips Corporation N.v.

Nxp Usa, Inc.

Peter Thüringer

Franz Amtmann

Daniel Lopez-Diaz

Ulrich Andreas Muehlmann

Yoganathan Sivakumar

Rui Cao

Wolfgang Eber

Gerald Holweg

Dominik Josef Berger

Sai-Wang Tam

Siegfried H Arnold

Hubert Watzinger

Martin Feldhofer

Manfred Koller

Randy Ping Leong Tsang

Thomas Eibel

Pierluigi Cavallini

A scalable reconfigurable intelligent surface (RIS) includes a plurality of RIS elements. The RIS elements include: a radio frequency identification (RFID) chip that powers the RIS element; a RFID antenna connected to the RFID chip; a RIS variable impedance controlled by the RFID chip; and a RIS antenna connected to the RIS variable impedance. The plurality of RIS elements produces a reflection beam that may be directed to a specific location. The RFID chip receives steering information to steer the reflection beam.

Reconfigurable intelligent surface architecture with RFID array

An energy harvesting unit includes a plurality of antennas configured to receive one or more signals and a plurality of first charge pumps, in which each of the first charge pumps is operatively coupled to one of the antennas, thereby forming pairs of antennas and first charge pumps. The energy harvesting unit also includes a selection unit configured to measure and compare output voltages of the first charge pumps and to select, from the antennas, a specific antenna. The specific antenna is coupled to the first charge pump that produces the highest output voltage. The energy harvesting unit also includes a multiplexer configured to couple the specific antenna selected by the selection unit to a second charge pump.

Energy harvesting unit and operating method thereof

An electronic circuit is provided. The electronic circuit includes a full-bridge rectifier, a spurious tone detection circuit, and a controller. The rectifier circuit has a plurality of switching elements and first and second radio frequency (RF) terminals. The spurious tone detection circuit has a non-linear circuit element and is coupled between the first RF terminal and a first reference terminal. The spurious tone detection circuit provides a non-zero direct current (DC) voltage in response to detecting harmonic tones at the first RF terminal of the full-bridge rectifier circuit. The controller is coupled to the plurality of switching elements. The controller is for controlling the operation of the plurality of switching elements based at least in part on detecting the harmonic tones. In one embodiment, the electronic circuit may be a wireless charging receiver. In another embodiment, a method for detecting harmonic tones in the electronic device is provided.

Electronic circuit with electromagnetic interference detection and suppression and method therefor

In accordance with a first aspect of the present disclosure, a radio frequency identification (RFID) device is provided, comprising a first power domain, a second power domain, a first processing unit, and a second processing unit, wherein the first processing unit is configured to execute one or more first operations and the second processing unit is configured to execute one or more second operations, wherein the first operations output intermediate data which are used as input for the second operations, and wherein the first processing unit is configured to operate in the first power domain and the second processing unit is configured to operate in the second power domain, said first power domain having a larger amount of available power than the second power domain. In accordance with further aspects of the present disclosure, a corresponding method of operating a radio frequency identification (RFID) device is conceived, and a corresponding computer program is provided.

RFID device and method of operating an RFID device

In a communication arrangement () provided for transmitting data (DA) to a transponder () which arrangement includes a data source () for delivering data (DA) and includes a carrier signal generator () for generating a carrier signal (CS) and includes modulation means () to which can be applied the data (DA) and the carrier signal (CS) and which modulation means are provided for modulating a carrier signal (CS) in accordance with the data (DA) and for delivering a modulated carrier signal (CSM) to transmitting means () having an input resistance (), the modulation means () have a changeable output resistance () which forms a resistance network together with the input resistance () of the transmitting means (), and resistance change means () for changing the output resistance () in accordance with the data (DA).

Communication arrangement comprising powerful integrated amplitude-modulation means

A data carrier (1) which can be operated in a contact-bound mode and in a contactless mode and a circuit (1A) for such a data carrier (1) has supply voltage generating means (35) for deriving a supply voltage (VDD), for various circuit sections of the data carrier (1) and of the circuit (1A), from a received useful HF signal (HF), and, in addition, potential equalizing circuit (94) by which at least two contact terminals (17A, 19A) each connected to a respective transmission contact (17, 19) can be brought at the same potential (ground).

Dual-mode data carrier and circuit for such a data carrier with

Supply voltage processing circuit and a data carrier with a supply

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Graz, Austria

Peter Thüringer