Sensory array structures with two or more different sets of resolution, method of fabrication of and method of operating same

Abstract

Tactile sensing using both coarse and fine tactile sensors. A coarse tactile sensor having a first sensitive area at least partially encompasses or overlies a plurality of fine tactile sensors, each having a respective sensitive area smaller than the first sensitive area. The coarse tactile sensor(s) and fine tactile sensors may be carried on a same circuit board or separate circuit boards. Processor(s) circuits are communicatively coupled to the coarse and/or fine tactile sensors. Information indicative of at least a presence or absence of force or pressure at a given location monitored by the respective tactile sensor, and/or a measure of the force or pressure or strain is collected. Such may be mounted to a backing, and optionally covered or encased in an artificial skin. Collecting sensor readings employs both coarse and fine tactile sensors, sampling corresponding fine tactile sensors in response to detection by a coarse tactile sensor.