US 11,989,379 B2
Sensor controller, position indicator, and position detecting system
Yasuo Oda, Saitama (JP); and Sadao Yamamoto, Tokyo (JP)
Assigned to Wacom Co., Ltd., Saitama (JP)
Filed by Wacom Co., Ltd., Saitama (JP)
Filed on Jan. 13, 2023, as Appl. No. 18/154,675.
Application 18/154,675 is a continuation of application No. 17/359,993, filed on Jun. 28, 2021, granted, now 11,556,213.
Application 17/359,993 is a continuation of application No. 17/107,774, filed on Nov. 30, 2020, granted, now 11,048,366, issued on Jun. 29, 2021.
Application 17/107,774 is a continuation of application No. 16/659,451, filed on Oct. 21, 2019, granted, now 10,852,895, issued on Dec. 1, 2020.
Application 16/659,451 is a continuation of application No. 15/885,442, filed on Jan. 31, 2018, granted, now 10,452,168, issued on Oct. 22, 2019.
Application 15/885,442 is a continuation of application No. PCT/JP2016/062325, filed on Apr. 19, 2016.
Claims priority of provisional application 62/207,257, filed on Aug. 19, 2015.
Claims priority of application No. PCT/JP2016/058254 (WO), filed on Mar. 16, 2016.
Prior Publication US 2023/0168777 A1, Jun. 1, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/044 (2006.01); G06F 3/03 (2006.01); G06F 3/0354 (2013.01); G06F 3/038 (2013.01); G06F 3/041 (2006.01)
CPC G06F 3/0442 (2019.05) [G06F 3/03 (2013.01); G06F 3/03545 (2013.01); G06F 3/038 (2013.01); G06F 3/0383 (2013.01); G06F 3/041 (2013.01); G06F 3/04162 (2019.05); G06F 3/0441 (2019.05); G06F 3/0446 (2019.05)] 20 Claims
OG exemplary drawing
 
1. A method executed by a position indicator, the method comprising:
receiving, from a sensor controller of a position detector, a preamble signal generated by modulating a chip string with a defined code pattern of the preamble signal;
subsequent to receiving the preamble signal, receiving, from the sensor controller, a command signal generated by modulating the chip string with data;
by referring to a polarity of the preamble signal, decoding the data based on the command signal; and
controlling, based on the data, transmission of a signal to the position detector.