US 12,271,540 B2
Electronic pen and electronic pen main unit
Shinya Aoki, Saitama (JP); Yoshiyuki Hashimoto, Saitama (JP); and Takenori Kaneda, Saitama (JP)
Assigned to Wacom Co., Ltd., Saitama (JP)
Filed by Wacom Co., Ltd., Saitama (JP)
Filed on Dec. 4, 2023, as Appl. No. 18/528,310.
Application 18/528,310 is a continuation of application No. 17/678,479, filed on Feb. 23, 2022, granted, now 11,874,976.
Application 17/678,479 is a continuation of application No. PCT/JP2020/032978, filed on Sep. 1, 2020.
Claims priority of application No. 2019-187507 (JP), filed on Oct. 11, 2019.
Prior Publication US 2024/0103648 A1, Mar. 28, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/038 (2013.01); G06F 3/0354 (2013.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/03546 (2013.01) [G06F 3/0383 (2013.01); G06F 3/04162 (2019.05); G06F 3/0441 (2019.05); G06F 3/0442 (2019.05)] 20 Claims
OG exemplary drawing
 
1. An electronic pen main unit that is configured as a replaceable cartridge to be fitted to a fitting part positioned in a casing of an electronic pen in which a pen tip side that is one end side of the electronic pen in an axial center direction includes an opening, and configured to be housed in a state of being movable in a hollow part of the casing by a movement mechanism that moves the fitting part in the axial center direction, the electronic pen main unit comprising:
a pen tip part including an electrically-conductive core body configured to protrude externally from the casing through the opening by being moved by the movement mechanism;
a main body tubular part to which the pen tip part is joined on the pen tip side in the axial center direction, the main body tubular part housing an electronic circuit including a signal generating circuit configured to generate a signal to be transmitted by the core body; and
a rear-end-part connector that is positioned at a rear end part of the main body tubular part on a side opposite from the pen tip part in the axial center direction, includes a plurality of terminals arranged at a plurality of different locations along the axial center direction of the replaceable cartridge and electrically insulated from each other and electrically connected to the electronic circuit, and is configured to be joined to a joining connector positioned at the fitting part, wherein the joining connector includes a plurality of contact terminals,
wherein the plurality of terminals are configured to be electrically coupled to the plurality of contact terminals when the replaceable cartridge is received in the casing and the rear-end-part connector is joined to the joining connector, and at least one of the plurality of terminals is a power-supply terminal configured to be electrically coupled to one of the contact terminals to supply power from a power source to the electronic circuit of the replaceable cartridge.