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US 2021/0241972 A1Published application
Configurations for shielding electric field emissions from a transmitter coil
AssigneeIntuitive Surgical Operations, Inc.
InventorsMarc E. Tognaccini, Douglas C. Smith
Life of this patent
Estimating the term…
Abstract
An exemplary system includes a transmitter coil configured to wirelessly transmit a signal to a receiver coil and an electrically conductive shield between the transmitter coil and the receiver coil and connected to an electrical ground. The electrically conductive shield is positioned to shunt electric field energy generated by the transmitter coil to the electrical ground and allow magnetic field energy to pass from the transmitter coil to the receiver coil.
Claims20
A system comprising:
- a transmitter coil configured to wirelessly transmit a signal to a receiver coil;
- and
- an electrically conductive shield between the transmitter coil and the receiver coil and connected to an electrical ground, the electrically conductive shield being positioned to shunt electric field energy generated by the transmitter coil to the electrical ground and allow magnetic field energy to pass from the transmitter coil to the receiver coil.
An assembly comprising:
- a printed circuit board comprising an electrical ground;
- a transmitter coil on the printed circuit board and connected to the electrical ground, the transmitter coil comprising a top surface;
- an electrically conductive shield connected to the electrical ground and that physically covers at least a first portion of the top surface of the transmitter coil;
- and
- a receptacle positioned to receive a contactless connector of an instrument;
- wherein the printed circuit board, the transmitter coil, and the electrically conductive shield are behind a wall of the receptacle such that, while the contactless connector is positioned in the receptacle, the transmitter coil is aligned with a receiver coil in the contactless connector, and the electrically conductive shield is between the transmitter coil and the receiver coil.
3 more elements
A system comprising:
- a controller and an instrument;
- wherein the controller comprises:
- a printed circuit board comprising an electrical ground,
- a transmitter coil on the printed circuit board and connected to the electrical ground,
- an electrically conductive shield that physically covers at least a first portion of a top surface of the transmitter coil and that is connected to the electrical ground, and
- a receptacle comprising a wall;
- wherein the instrument comprises:
- a contactless connector shaped to be inserted into the receptacle, and
- a receiver coil in the contactless connector;
- and
- wherein the transmitter coil and the electrically conductive shield are behind the wall of the receptacle such that, while the contactless connector is in the receptacle, the transmitter coil is aligned with the receiver coil, and the electrically conductive shield is between the transmitter coil and the receiver coil.
8 more elements
Dependencies are inferred from the claim text.