US 12,079,417 B2
Combination touch and transducer input system and method
Oliver P. King-Smith, Aptos, CA (US); Bernardus H. Smit, San Jose, CA (US); and Peyman Hadizad, Redwood City, CA (US)
Assigned to Wacom Co., Ltd., Saitama (JP)
Filed by Wacom Co., Ltd., Saitama (JP)
Filed on Jun. 9, 2023, as Appl. No. 18/332,667.
Application 18/332,667 is a continuation of application No. 18/332,633, filed on Jun. 9, 2023.
Application 18/332,633 is a continuation of application No. 17/898,124, filed on Aug. 29, 2022, granted, now 11,720,201.
Application 17/898,124 is a continuation of application No. 17/090,698, filed on Nov. 5, 2020, granted, now 11,429,221, issued on Aug. 30, 2022.
Application 17/090,698 is a continuation of application No. 16/040,074, filed on Jul. 19, 2018, granted, now 10,860,138, issued on Dec. 8, 2020.
Application 16/040,074 is a continuation of application No. 15/694,237, filed on Sep. 1, 2017, granted, now 10,042,477, issued on Aug. 7, 2018.
Application 15/694,237 is a continuation of application No. 15/288,862, filed on Oct. 7, 2016, granted, now 9,753,584, issued on Sep. 5, 2017.
Application 15/288,862 is a continuation of application No. 14/738,021, filed on Jun. 12, 2015, granted, now 9,495,037, issued on Nov. 16, 2015.
Application 14/738,021 is a continuation of application No. 13/915,596, filed on Jun. 11, 2013, granted, now 9,182,835, issued on Nov. 10, 2015.
Application 13/915,596 is a continuation of application No. 12/568,066, filed on Sep. 28, 2009, granted, now 8,482,545, issued on Jul. 9, 2013.
Claims priority of provisional application 61/102,234, filed on Oct. 2, 2008.
Prior Publication US 2023/0376139 A1, Nov. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/045 (2006.01); G06F 3/0354 (2013.01); G06F 3/038 (2013.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); G06F 3/046 (2006.01)
CPC G06F 3/04162 (2019.05) [G06F 3/03545 (2013.01); G06F 3/0383 (2013.01); G06F 3/0416 (2013.01); G06F 3/04166 (2019.05); G06F 3/0418 (2013.01); G06F 3/044 (2013.01); G06F 3/0441 (2019.05); G06F 3/0442 (2019.05); G06F 3/0446 (2019.05); G06F 3/046 (2013.01); G06F 2203/04104 (2013.01); G06F 2203/04105 (2013.01); G06F 2203/04106 (2013.01); G06F 2203/04108 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A position input system, comprising:
an array of electrodes; and
a controller coupled to the array of electrodes and configured to:
when operating in a touch mode, determine a position of a proximate object by capacitively sensing the object with the array of electrodes, and
when operating in a transducer mode, determine a position of a transducer by measuring a sensing signal which is induced in the array of electrodes by a magnetic field component of an electromagnetic field generated by the transducer,
wherein:
one side of the array of electrodes are connected to a set of switches; and
the controller is configured to, in the transducer mode, control the set of switches to make the array of electrodes to form loop electrodes in which the sensing signal is electromagnetically induced.