US 11,989,377 B2
Pen and sensor controller
Sadao Yamamoto, Saitama (JP)
Assigned to Wacom Co., Ltd., Saitama (JP)
Filed by Wacom Co., Ltd., Saitama (JP)
Filed on Oct. 14, 2021, as Appl. No. 17/501,822.
Application 17/501,822 is a continuation of application No. PCT/JP2019/023168, filed on Jun. 11, 2019.
Prior Publication US 2022/0035483 A1, Feb. 3, 2022
Int. Cl. G06F 3/044 (2006.01); G06F 3/0354 (2013.01); G06F 3/038 (2013.01); G06F 3/041 (2006.01); H04L 1/00 (2006.01)
CPC G06F 3/0441 (2019.05) [G06F 3/03545 (2013.01); G06F 3/038 (2013.01); G06F 3/0416 (2013.01); G06F 3/0442 (2019.05); H04L 1/0061 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pen comprising:
reception circuitry configured to receive an uplink signal generated according to a first protocol; and
transmission circuitry configured to transmit, according to the first protocol, a downlink signal based on a reception timing of the uplink signal and a command included in the uplink signal, wherein,
in a case where the reception circuitry receives the uplink signal that is in a normal state (uplink signal NUS) in a first period, the transmission circuitry transmits the downlink signal including data according to the command included in the uplink signal NUS, and
in a case where the reception circuitry receives the uplink signal that is in a special state (uplink signal SUS) in a second period subsequent to the first period, the transmission circuitry transmits the downlink signal including data according to the command included in the uplink signal NUS received in the first period.