System for detecting and characterizing touch inputs at a human-computer interface

A system comprising:

• a substrate;
• a first electrode arranged at a first location on the substrate;
• a second electrode arranged at a second location, different from the first location, on the substrate;
• a first coupling region:
• arranged at a first offset distance from the first electrode;
• and
• electrically coupling to the first electrode to yield a first change in electrical values at the first electrode responsive to application of a first force magnitude at the first location on the substrate;
• and
• a second coupling region:
• arranged at a second offset distance, different from the first offset distance, from the second electrode;
• and
• electrically coupling to the second electrode to yield a second change in electrical values, approximating the first change in electrical values, at the second electrode responsive to application of a second force magnitude, approximating the first force magnitude, at the second location on the substrate.

A system comprising:

• a substrate;
• a first electrode:
• defining a first dimension;
• and
• extending across a first region on the substrate;
• a second electrode:
• defining a second dimension different from the first dimension;
• and
• extending across a second region, offset from the first region, on the substrate;
• a first coupling region:
• facing and offset the first electrode;
• and
• electrically coupling to the first electrode to yield a first change in electrical values at the first electrode responsive to application of a first force magnitude on the first region of the substrate;
• and
• a second coupling region:
• facing and offset the second electrode;
• and
• electrically coupling to the second electrode to yield a second change in electrical values, approximating the first change in electrical values, at the second electrode responsive to application of a second force magnitude, approximating the first force magnitude, on the second region of the substrate.