US 12,141,379 B1
Stylus pen having an automatic consecutive tapping function
Chih-Cheng Lee, Taichung (TW); Wen-Hao Kuo, Taichung (TW); and Jyun-Ying Jin, New Taipei (TW)
Assigned to Sunrex Technology Corp., Taichung (TW)
Filed by SUNREX TECHNOLOGY CORP., Taichung (TW)
Filed on Jul. 31, 2023, as Appl. No. 18/362,019.
Claims priority of application No. 112115770 (TW), filed on Apr. 27, 2023.
Int. Cl. G06F 3/038 (2013.01); G06F 3/0354 (2013.01)
CPC G06F 3/0383 (2013.01) [G06F 3/03545 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A stylus pen having an automatic consecutive tapping function, comprising:
a pen unit including a tip that is electrically conductive, and a shaft that is connected to said tip and that is electrically conductive;
an operation switch; and
a control unit electrically connected to said shaft and said operation switch, said control unit being configured to be switched between a default mode and an alternative mode in response to a first type of operation on said operation switch, wherein
said control unit is configured to, when operating in the default mode, emit a default-mode electromagnetic wave of a default-mode frequency to said shaft in a continuous manner for a touch screen to determine whether the touch screen has been contacted by a tip of the stylus pen, and said control unit is configured to, when said control unit is operating in the alternative mode, emit an alternative-mode electromagnetic wave to said shaft in a pulsating pattern that has a wave period, for providing the automatic consecutive tapping function for when a user requires consecutive tapping on the touch screen, the wave period including a working period where said control unit emits the alternative-mode electromagnetic wave of the default-mode frequency, and a non-working period where said control unit stops emitting the alternative-mode electromagnetic wave.