Seat belt buckle tongue electromagnetic coupling with optional wireless sensor and/or actuator system

A seat belt system for a vehicle seat comprising:

• a seat belt having a tongue attached;
• a buckle configured to receive and lock the tongue in an attached state;
• a primary circuit included in the buckle;
• and
• at least one secondary circuit included in the tongue;
• wherein the primary circuit and the at least one secondary circuit are configured to be electromagnetically coupled when the buckle and tongue are in close proximity.

A seat belt system for a vehicle seat comprising:

• a seat belt having a tongue attached;
• and
• a buckle configured to receive and releasably lock the tongue in an attached state,
• wherein a primary coil included in the buckle and a secondary coil included in the tongue are configured to be electromagnetically coupled when the buckle and tongue are in the attached state such that at least one of power and data may be transmitted between the buckle and tongue.