US 10,890,990 B2
Rotation input device for a capacitive sense cord
Jordan A. Kestler, Pacifica, CA (US); Peter M. Cazalet, Los Gatos, CA (US); and Jonathan B. Moeller, Palo Alto, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on Jun. 15, 2018, as Appl. No. 16/10,173.
Claims priority of provisional application 62/562,659, filed on Sep. 25, 2017.
Prior Publication US 2019/0094992 A1, Mar. 28, 2019
Int. Cl. G06F 3/0362 (2013.01); H04R 1/10 (2006.01); G06F 3/0338 (2013.01); G06F 3/0354 (2013.01); H01B 11/00 (2006.01); G01D 5/24 (2006.01); H01B 7/282 (2006.01)
CPC G06F 3/0362 (2013.01) [G06F 3/0338 (2013.01); G06F 3/03547 (2013.01); H01B 11/00 (2013.01); H04R 1/1041 (2013.01); G01D 5/24 (2013.01); H01B 7/2825 (2013.01); H04R 1/1033 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A capacitive sense cord comprising:
a cable;
a cable jacket configured to cover the cable; and
a plurality of sensing wires disposed inside the cable jacket and around the cable throughout first and second portions of the cord,
the first portion of the cord including the plurality of sensing wires disposed proximate to a surface of the cord and positioned lengthwise along the cord to form a rotation input device configured to be capacitively sensitive to touch input, the rotation input device configured to enable rotational input based on a pattern of change in capacitance values corresponding to at least a subset of the plurality of sensing wires in the rotation input device; and
the second portion of the cord configured to be insensitive to touch input based on the plurality of sensing wires being twisted around one another within the second portion.