ELECTRONIC DEVICE FOR RECOGNIZING ASYNCHRONOUS DIGITAL PEN AND RECOGNIZING METHOD THEREOF
First Claim
1. 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.
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Accused Products
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.
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Citations
20 Claims
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1. An electronic device comprising a digital pen, the electronic device comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. 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:
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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. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification