US 12,236,021 B2
Pointer, position detection apparatus and position detection method
Yasuo Oda, Saitama (JP); Sadao Yamamoto, Saitama (JP); and Yoshihisa Sugiyama, Saitama (JP)
Assigned to Wacom Co., Ltd., Saitama (JP)
Filed by Wacom Co., Ltd., Saitama (JP)
Filed on Nov. 14, 2023, as Appl. No. 18/509,096.
Application 18/509,096 is a continuation of application No. 17/379,747, filed on Jul. 19, 2021, granted, now 11,853,485.
Application 17/379,747 is a continuation of application No. 16/689,830, filed on Nov. 20, 2019, granted, now 11,099,661, issued on Aug. 24, 2021.
Application 16/689,830 is a continuation of application No. 15/896,984, filed on Feb. 14, 2018, granted, now 10,514,781, issued on Dec. 24, 2019.
Application 15/896,984 is a continuation of application No. 15/047,013, filed on Feb. 18, 2016, granted, now 10,108,277, issued on Oct. 23, 2018.
Application 15/047,013 is a continuation of application No. 14/542,438, filed on Nov. 14, 2014, granted, now 9,529,456, issued on Dec. 27, 2016.
Application 14/542,438 is a continuation of application No. 12/877,780, filed on Sep. 8, 2010, granted, now 8,963,889, issued on Feb. 24, 2015.
Claims priority of application No. 2010-024858 (JP), filed on Feb. 5, 2010.
Prior Publication US 2024/0077960 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. 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 3/03545 (2013.01) [G06F 3/0383 (2013.01); G06F 3/04162 (2019.05); G06F 3/0442 (2019.05); G06F 3/0446 (2019.05); G06F 3/046 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A pen-shaped position indicator configured to capacitively couple with a sensor surface of a position detection apparatus, the pen-shaped position indicator comprising:
a pen-shaped body having a pen-tip portion;
a first electrode arranged at a first position of the pen tip portion;
a coil;
a driving power production circuit configured to produce a DC voltage from an induced signal in the coil, wherein the induced signal is generated by a wireless interaction with a charging device;
a signal production circuit connected to the driving power production circuit and configured to generate a signal based on the DC voltage to form a capacitive relationship between the first electrode and the sensor surface of the position detection apparatus; and
a second electrode arranged at a second position of the pen tip portion;
wherein the first and second electrodes are arranged at the first and second positions that are different along an axis of the pen-shaped position indicator, and
wherein the second position of the second electrode is offset from the axis of the pen-shaped position indicator.