US 11,720,201 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 Aug. 29, 2022, as Appl. No. 17/898,124.
Application 17/898,124 is a continuation of application No. 17/090,698, filed on Nov. 5, 2020, granted, now 11,429,221.
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. 15, 2016.
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 2022/0404939 A1, Dec. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/041 (2006.01); G06F 3/046 (2006.01); G06F 3/044 (2006.01); G06F 3/0354 (2013.01); G06F 3/038 (2013.01)
CPC G06F 3/04162 (2019.05) [G06F 3/0383 (2013.01); G06F 3/03545 (2013.01); G06F 3/044 (2013.01); G06F 3/046 (2013.01); G06F 3/0416 (2013.01); G06F 3/0418 (2013.01); G06F 3/0441 (2019.05); G06F 3/0442 (2019.05); G06F 3/0446 (2019.05); G06F 3/04166 (2019.05); G06F 2203/04104 (2013.01); G06F 2203/04105 (2013.01); G06F 2203/04106 (2013.01); G06F 2203/04108 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A combination touch and transducer input system, comprising:
a transducer configured to generate an electric field;
an array of electrodes; and
a controller coupled to the array of electrodes, the controller being 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 the transducer by measuring attributes of a plurality of sensing signals, the plurality of sensing signals being induced in the array of electrodes by the electric field generated by the transducer;
wherein the transducer is configured to transmit digital data to the array of electrodes by modulating a signal of a frequency selected among multiple frequencies by dividing down a known base frequency, and the controller is configured to receive the digital data via the array of electrodes.