18682944. A POWER TRANSFER APPARATUS AND METHOD THEREFOR (KONINKLIJKE PHILIPS N.V.)
A POWER TRANSFER APPARATUS AND METHOD THEREFOR
Organization Name
Inventor(s)
Aleksei Agafonov of Eindhoven NL
Antonius Adriaan Maria Staring of Eindhoven NL
A POWER TRANSFER APPARATUS AND METHOD THEREFOR
This abstract first appeared for US patent application 18682944 titled 'A POWER TRANSFER APPARATUS AND METHOD THEREFOR
Original Abstract Submitted
A power transmitter and/or receiver for a wireless power transfer system comprises a power transfer coil () arranged to exchange power via a power transfer signal. A receiver () is arranged to receive first data from the complementary power transfer apparatus. The first data is modulated onto the power transfer signal in accordance with a first modulation scheme where each data symbol is represented by a sequence of time intervals each having a constant modulation level dependent on a data symbol value for the data symbol. A transmitter () is arranged to transmit second data to the complementary power transfer apparatus by modulating the power transfer signal in accordance with a second modulation scheme. The symbol duration for data symbols of the second modulation scheme are a divisor of a duration of at least one time interval of the sequence of time intervals. A synchronizer () is further arranged to synchronize the transmitter () to transmit the second data aligned with the first data by synchronizing the transmission of the second data to the power transfer signal.