US 11,899,056 B2 · Communicating using contactless coupling

Abstract

An example system includes a first circuit board having first conductive traces, where a first conductive trace is for conducting an alternating current (AC) digital signal having an edge; a second circuit board having second conductive traces, where a second conductive trace is within a predefined distance of the first conductive trace to produce a contactless coupling with the first conductive trace, and where the contactless coupling enables electrical energy on the first conductive trace to manifest on the second conductive trace as a transient response that is based on the edge; and circuitry to reconstruct the edge based on the transient response from the second conductive trace.

Claims31

Dependent claims

A system comprising:

a first circuit board comprising first conductive traces, a first conductive trace for conducting a digital signal comprising an edge;
a second circuit board comprising second conductive traces, a second conductive trace of the second conductive traces being within a predefined distance of the first conductive trace to produce a contactless coupling with the first conductive trace, the contactless coupling enabling electrical energy on the first conductive trace to manifest on the second conductive trace as a transient response that is based on the edge;
and
circuitry to reconstruct the edge based on the transient response from the second conductive trace.

1 more element

A method of reconstructing a digital signal having a rising edge and a falling edge, the method comprising:

producing a first transient response corresponding to the rising edge of the digital signal, the digital signal conducting through a first conductive trace on a first circuit board and the first transient response being produced on a second conductive trace on a second circuit board, the first conductive trace and the second conductive trace being in a contactless coupling that is based on proximity of the first conductive trace and the second conductive trace, the contactless coupling enabling the second conductive trace to produce the first transient response;
generating a logic high level in response to the first transient response;
producing a second transient response corresponding to the falling edge of the digital signal, the second transient response being produced on the second conductive trace based on the contactless coupling;
and
generating a logic low level in response to the second transient response, thereby reconstructing at least part of the digital signal.

2 more elements

Dependencies are inferred from the claim text.

Communicating using contactless coupling

Life of this patent

Communicating using contactless coupling

Life of this patent

Abstract

Claims31