Electronic device for recognizing asynchronous digital pen and recognizing method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorBong-Jae RHEE
Life of this patent
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Abstract
An electronic device for receiving an input by a digital pen having a waveform generation means is provided. The electronic device includes at least three reception sensors and a processor. The at least three reception sensors are installed in the electronic device at positions that are separated from one another, and are configured to receive a waveform generated by the waveform generator of the digital pen. The processor is configured to calculate an input coordinate of the digital pen using a difference of velocities and reception times of the waveform received by the at least three reception sensors.
Claims20
An electronic device comprising a digital pen, the electronic device comprising:
- at least three reception sensors installed in the electronic device at positions that are separated from one another, the at least three reception sensors configured to receive a waveform generated by a waveform generator of the digital pen;
- and
- a processor configured to calculate an input coordinate of the digital pen using a difference of velocities and reception times of the waveform received by the at least three reception sensors.
A method for calculating an input coordinate of a digital pen having a waveform generator in an electronic device comprising at least three reception sensors, the method comprising:
- determining a difference of at least two reception times of waveforms received from the at least three reception sensors, respectively;
- and
- determining an input coordinate of the digital pen using the determined deference of at least two reception times and a velocity of the waveform set in advance.
Dependencies are inferred from the claim text.