Low-power and low-frequency data transmission for stylus and associated signal processing
AssigneeWacom Co., Ltd.
InventorsSamuel Brunet, Richard Collins, Luben Hristov
Life of this patent
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Abstract
A stylus includes a timer; a signal generator coupled to a stylus tip; a switch; and a controller comprising one or more computer-readable non-transitory storage media embodying logic. The logic is operable when executed to: in response to the switch of the stylus being ON, initiate the signal generator to generate a signal having a pre-determined frequency and a pre-determined voltage from the stylus tip, and activate the timer, and stop the generating of the signal when a timing of the activated timer reaches a pre-determined threshold.
Claims24
A stylus comprising:
- a timer;
- a signal generator coupled to a stylus tip;
- a switch;
- and
- a controller comprising one or more computer-readable non-transitory storage media embodying logic that is operable when executed to:
- in response to the switch being ON, initiate the signal generator to generate a signal having a pre-determined frequency and a pre-determined voltage from the stylus tip, and activate the timer, wherein the signal generator and the timer are electronically connected and the generation of the signal and the activation of the timer are simultaneously triggered by the switch being ON, and
- stop the generating of the signal when a timing of the activated timer reaches a pre-determined threshold.
A stylus controller comprising:
- one or more computer-readable non-transitory storage media embodying logic that is operable when executed to:
- in response to a switch of a stylus being ON, initiate generation of a signal having a pre-determined frequency and a pre-determined voltage from a tip of the stylus, and activate a timer of the stylus, wherein the generation of the signal and the activation of the timer are simultaneously triggered by the switch being ON, and
- stop the generation of the signal when a timing of the activated timer reaches a pre-determined threshold.
A method executed by a stylus, the method comprising:
- in response to a switch of the stylus being ON, initiating generation of a signal having a pre-determined frequency and a pre-determined voltage from a tip of the stylus, and activating a timer of the stylus, wherein the generation of the signal and the activation of the tinier are simultaneously triggered by the switch being ON, and
- stopping the generation of the signal when a timing of the activated timer reaches a pre-determined threshold.
Dependencies are inferred from the claim text.