Abstract:
In an image forming apparatus, a first detection portion includes a pyroelectric sensor and detects the upper half of the human body. A first signal generation portion generates a first signal whose level varies according to the output value of the pyroelectric sensor. A second detection portion includes a pyroelectric sensor and detects a lower area than the first detection portion. A second signal generation portion generates a second signal whose level varies according to the output value of the pyroelectric sensor. A storage portion stores discrimination data including data defining, with respect to the waveforms of the first and second signals, a condition for recognizing a human moving toward the image forming apparatus and a condition for recognizing a human crossing a detection area of the pyroelectric sensors. A recognition portion recognizes the direction of movement of a human.
Abstract:
An electronic apparatus includes a display unit that includes a display screen including a touch panel configured to display an image and to accept an input from an operator made by touching the touch panel, a touch position detection unit that detects a position touched by the operator on the display screen of the display unit, upon receipt of a detection signal outputted from the display unit according to detection by the touch panel, a calibration execution unit that executes calibration to correct a shift of the touch position detected by the touch position detection unit, and a human body sensor that outputs a detection signal upon detecting that the operator has come to a position spaced from the electronic apparatus by a predetermined distance. The calibration execution unit executes the calibration upon receipt of the detection signal from the human body sensor.