US 12,066,347 B2
Sensory array structures with two or more different sets of resolution, method of fabrication of and method of operating same
Kevin Jiaming Wu, Vancouver (CA); and Connor Richard Shannon, Vancouver (CA)
Assigned to Sanctuary Cognitive Systems Corporation, Vancouver (CA)
Filed by Sanctuary Cognitive Systems Corporation, Vancouver (CA)
Filed on Jul. 28, 2021, as Appl. No. 17/386,877.
Claims priority of provisional application 63/057,461, filed on Jul. 28, 2020.
Prior Publication US 2022/0034738 A1, Feb. 3, 2022
Int. Cl. G01L 5/22 (2006.01); G01L 5/169 (2020.01)
CPC G01L 5/226 (2013.01) [G01L 5/169 (2020.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus to provide tactile sensing, comprising:
a first coarse tactile sensor, the first coarse tactile sensor having a respective sensor surface area over which the first coarse tactile sensor is responsive to at least one of force or pressure, the respective surface area of the first coarse tactile sensor having an area greater than a first value; and
a first set of fine tactile sensors comprising a plurality of fine tactile sensors, each of the fine tactile sensors of the first set of fine tactile sensors having a respective sensor surface area over which the fine tactile sensor is responsive to at least one of force or pressure, the respective surface area of each of the fine tactile sensors of the first set of sensors having a respective area less than or equal to the first value, the plurality of fine tactile sensors of the first set of fine tactile sensors arrayed with respect to one another, the arrayed fine tactile sensors of the first set of fine tactile sensors delineating a first arrayed footprint of the first set of fine tactile sensors, wherein the first coarse tactile sensor overlaps at least a portion of each of the fine tactile sensors of first set of fine tactile sensors;
wherein at least one of the first coarse tactile sensor and/or any one of the first fine tactile sensors comprises a pair of interdigitated comb electrodes, with force sensing resistor material overlying or underlying the pair of interdigitated comb electrodes.