A WIRELESS ACOUSTIC POWER RECEIVER FOR A LOAD AND FOR COMMUNICATION
Applicants
Imec VZW
Inventors
Wu, Lixiang, Wong, Oi Ying, Brondani Torri, Guilherme, Vysotskyi, Bogdan
Abstract
The disclosure proposes a wireless acoustic power receiver comprising an acoustic transducer and a corresponding method of operation. The acoustic transducer is configured to: capture a first alternating current (AC) signal with respectively a first and a second electrode; capture a second AC signal with respectively the first electrode at a first phase and the second electrode at a second phase. The first and the second AC signal are respectively based on vibrations of a first and a second vibration mode of a diaphragm that are respectively induced by a first and a second acoustic frequency. The receiver is configured to provide an electrical power of the first AC signal or the second AC signal to a load, and receive a downlink data stream based on and/or provide an uplink data stream by selectively reflecting and modulating the second acoustic frequency or the first acoustic frequency.
IPC Classifications
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR