RF-to-DC converter

V Freitas, B Franciscatto - US Patent 10,978,917, 2021 - Google Patents
A converter (200) for converting a received radio frequency signal into a DC signal for
powering a load (300). The converter (200) comprises a first rectifying arm (207) for …

RFID tag rectifiers with bias current reuse

CJT Peach, JD Hyde, JA Kuhn, T Stanford… - US Patent …, 2022 - Google Patents
US11481591B1 - RFID tag rectifiers with bias current reuse - Google Patents US11481591B1 -
RFID tag rectifiers with bias current reuse - Google Patents RFID tag rectifiers with bias current …

Integrated energy harvesting transceivers and transmitters with dual-antenna architecture for miniaturized implants and electrochemical sensors

A Babakhani, H Rahmani, H Mitsui - US Patent 11,515,733, 2022 - Google Patents
Systems and methods for utilizing a small form-factor, wirelessly powered transceiver are
disclosed. In one embodiment, a wireless powered transceiver includes a receive antenna …

Systems and methods for long-distance remote sensing with sub-wavelength resolution using a wirelessly-powered sensor tag array

H Lyu, A Babakhani - US Patent 12,052,533, 2024 - Google Patents
Abstract Systems and methods for remote sensing are described. In an embodiment, an
apparatus, includes: a radio frequency identification (RFID) tag; an electromagnetic …

Multi-mode wirelessly rechargeable battery system

WB Wright - US Patent App. 15/786,509, 2018 - Google Patents
A device including a processor configured to identify a power transferring unit, to determine
a range configuration relative to the power transferring unit, and to determine a power status …

Integrated energy harvesting transceivers and transmitters with dual-antenna architecture for miniaturized implants and electrochemical sensors

A Babakhani, H Rahmani, H Mitsui - US Patent 12,062,926, 2024 - Google Patents
Abstract Systems and methods for utilizing a small form-factor, wirelessly powered
transceiver are disclosed. In one embodiment, a wireless powered transceiver includes a …

Self biased rectifier circuit

KN Salama, AS Almansouri - US Patent App. 17/282,311, 2021 - Google Patents
A self-biased rectifier circuit includes first and second input terminals and first and second
output terminals. The self biased rectifier circuit also includes a rectifier having first, second …

Systems and methods for wireless treatment of arrhythmias

SUN Yuxiang, A Babakhani, M Razavi… - US Patent …, 2023 - Google Patents
Wireless treatment of arrhythmias. At least some of the example embodiments are methods
including: charging a capacitor of a first microchip device abutting heart tissue, the charging …

Fingerprint recognition card

LEE Wookyu, CHO Wangee - US Patent 11,210,493, 2021 - Google Patents
A fingerprint recognition card is provided to perform authen tication and security functions by
recognizing a fingerprint of a user and includes a fingerprint recognition unit config ured to …

Implantable Devices Based on Magnetoelectric Antenna, Energy Harvesting and Communication

NX Sun, M Zaeimbashi, H Lin - US Patent App. 16/672,167, 2020 - Google Patents
Disclosed is an implantable system that comprises a magnetoelectric (ME) antenna, a radio
frequency rectifier, and a transmitter. The ME antenna may be characterized by a resonance …