Abstract
Various electronic pen devices are disclosed herein. In one embodiment, an electronic pen with an improved ultrasound transducer (i.e. transmitter or receiver) is provided. In one embodiment an electronic pen with an improved ‘pen up/pen down’ detector is provided In one embodiment, an electronic pen with an improved structure for transmitting infrared light is provided. In one embodiment, an improved electronic pen that may be operated in pen mode or mouse mode is provided.
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