US 12,366,931 B2
Sensor controller
Sadao Yamamoto, Tokyo (JP); Masayuki Miyamoto, Tokyo (JP); and Hideyuki Hara, Tokyo (JP)
Assigned to Wacom Co., Ltd., Saitama (JP)
Filed by Wacom Co., Ltd., Saitama (JP)
Filed on Jan. 23, 2024, as Appl. No. 18/420,654.
Application 18/420,654 is a division of application No. 17/493,597, filed on Oct. 4, 2021, granted, now 11,914,802.
Application 17/493,597 is a continuation of application No. 16/277,637, filed on Feb. 15, 2019, granted, now 11,137,842, issued on Oct. 5, 2021.
Application 16/277,637 is a continuation of application No. PCT/JP2017/029914, filed on Aug. 22, 2017.
Claims priority of application No. PCT/JP2016/075595 (WO), filed on Sep. 1, 2016.
Prior Publication US 2024/0184383 A1, Jun. 6, 2024
Int. Cl. G06F 3/038 (2013.01); B43L 7/00 (2006.01); G06F 3/0354 (2013.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/0383 (2013.01) [B43L 7/00 (2013.01); G06F 3/03545 (2013.01); G06F 3/038 (2013.01); G06F 3/0412 (2013.01); G06F 3/04162 (2019.05); G06F 3/04166 (2019.05); G06F 3/0441 (2019.05); G06F 3/0442 (2019.05); G06F 3/0446 (2019.05); G06F 2203/0382 (2013.01); G06F 2203/0384 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A sensor controller that detects one or more styluses by using a sensor electrode group, comprising:
a processor; and
a memory storing processor readable instructions that, when executed by the processor, cause the sensor controller to:
transmit a first signal that represents a setting instruction that gives a local identifier to a first stylus that has not been detected in each frame of a plurality of frames,
transmit a second signal including the local identifier regarding which an instruction of setting has been made by the setting instruction to a second stylus that has been detected in each of a plurality of slots included in the frame, and
detect a first downlink signal transmitted from the second stylus in response to the second signal,
wherein the sensor controller, in operation, controls a display panel,
wherein a common electrode or a pixel electrode of the display panel is part of the sensor electrode group,
wherein the frame is during a display operation period of the display panel, and
wherein the second signal notifies a timing of a blank period corresponding to the slots.