Abstract: An image forming apparatus measures the distance between the image forming apparatus and an object located in the periphery of the image forming apparatus each predetermined amount of time. Then, whether or not the object is a human is detected on the basis of the measured distance and a moving amount of the object each predetermined amount of time. Furthermore, the image forming apparatus controls the power supply state of the image forming apparatus in accordance with the result of the human detection.

Abstract: A human presence sensor unit in which an ultrasonic wave sensor is mounted is fixed to a frame sheet metal of an image forming apparatus with a pedestal interposed therebetween. The pedestal is made of a synthetic resin material, and the frame sheet metal is made of a metal material. As the pedestal and the frame sheet metal are made of different materials, a difference in the acoustic impedance is produced between the pedestal and the frame sheet metal.

Abstract: An image forming apparatus measures the distance between the image forming apparatus and an object located in the periphery of the image forming apparatus each predetermined amount of time. Then, whether or not the object is a human is detected on the basis of the measured distance and a moving amount of the object each predetermined amount of time. Furthermore, the image forming apparatus controls the power supply state of the image forming apparatus in accordance with the result of the human detection.

Abstract: An image forming apparatus measures the distance between the image forming apparatus and an object located in the periphery of the image forming apparatus each predetermined amount of time. Then, whether or not the object is a human is detected on the basis of the measured distance and a moving amount of the object each predetermined amount of time. Furthermore, the image forming apparatus controls the power supply state of the image forming apparatus in accordance with the result of the human detection.

Abstract: An information processing apparatus including: a sonic sensor that outputs a sonic wave and receives a reflected wave of the output sonic wave; and a control unit configured to determine whether a person exists on a periphery of the information processing apparatus based on distance data and background data, wherein the distance data indicates intensity of a reflected wave in fixed time units received by the sonic sensor during a predetermined period of time after a sonic wave is output from the sonic sensor, the fixed time units being obtained by dividing the predetermined period of time, and the background data is past distance data prepared in advance.

Abstract: An information processing apparatus including: a sound wave sensor that outputs a sound wave and receives a reflected wave of the output sound wave; a control unit configured to measure an amplitude of a sound wave, at predetermined time intervals, which is received by the sound wave sensor after the sound wave sensor outputs a sound wave; and a power control unit configured to shift the information processing apparatus from a first power state into a second power state where power consumption is larger than that in the first power state, on a basis that the amplitude of the sound wave measured by the control unit is larger than or equal to a threshold value, wherein in a case where a number of times amplitude of a sound wave measured by the control unit is larger than or equal to the threshold value during a predetermined period of time is larger than or equal to a predetermined number of times, the control unit maintains the power state of the information processing apparatus in the first power state.

Abstract: An image forming apparatus 10 is configured to detect a human present in a first range (detection area A1) from the image forming apparatus 10 using an ultrasonic wave that is output at a first frequency from an ultrasonic sensor 611. If a human is detected in the detection area A1, the image forming apparatus 10 switches the frequency of the ultrasonic wave that is output from the ultrasonic sensor 611 to a second frequency that is lower than the first frequency, and is controlled to detect the human in a second range (detection area A2) that is smaller than the detection area A1. When a human is detected in the detection area A2, data communication is started using the ultrasonic wave output from the ultrasonic sensor 611.

Abstract: An information processing apparatus includes a sonic wave output unit that outputs a sonic wave. A horn restricts an output direction of the sonic wave output from the sonic wave output unit. A cover member is provided on the sonic wave output unit, wherein a region on the cover member corresponding to an opening of the horn is provided with a horizontally arranged slit having a width equal to or larger than a horizontal width of the opening.

Abstract: An information processing apparatus including: a sonic sensor that outputs a sonic wave and receives a reflected wave of the output sonic wave; and a control unit configured to determine whether a person exists on a periphery of the information processing apparatus based on distance data and background data, wherein the distance data indicates intensity of a reflected wave in fixed time units received by the sonic sensor during a predetermined period of time after a sonic wave is output from the sonic sensor, the fixed time units being obtained by dividing the predetermined period of time, and the background data is past distance data prepared in advance.

Abstract: An information processing apparatus including: a sonic sensor that outputs a sonic wave and receives a reflected wave of the output sonic wave; and a control unit configured to determine whether a person exists on a periphery of the information processing apparatus based on distance data and background data, wherein the distance data indicates intensity of a reflected wave in fixed time units received by the sonic sensor during a predetermined period of time after a sonic wave is output from the sonic sensor, the fixed time units being obtained by dividing the predetermined period of time, and the background data is past distance data prepared in advance.

Abstract: An image forming apparatus 10 is configured to detect a human present in a first range (detection area A1) from the image forming apparatus 10 using an ultrasonic wave that is output at a first frequency from an ultrasonic sensor 611. If a human is detected in the detection area A1, the image forming apparatus 10 switches the frequency of the ultrasonic wave that is output from the ultrasonic sensor 611 to a second frequency that is lower than the first frequency, and is controlled to detect the human in a second range (detection area A2) that is smaller than the detection area A1. When a human is detected in the detection area A2, data communication is started using the ultrasonic wave output from the ultrasonic sensor 611.

Abstract: The distance between an image forming apparatus and an object located around the apparatus is detected, and the apparatus is returned from a power-saving state when the distance becomes shorter than a predetermined distance. Also, the image forming apparatus is returned from a power saving state, even if the distance is longer than the predetermined distance, in a case where the detected distance decreases for every predetermined time.

Abstract: An information processing apparatus including: a sound wave sensor that outputs a sound wave and receives a reflected wave of the output sound wave; a control unit configured to measure an amplitude of a sound wave, at predetermined time intervals, which is received by the sound wave sensor after the sound wave sensor outputs a sound wave; and a power control unit configured to shift the information processing apparatus from a first power state into a second power state where power consumption is larger than that in the first power state, on a basis that the amplitude of the sound wave measured by the control unit is larger than or equal to a threshold value, wherein in a case where a number of times amplitude of a sound wave measured by the control unit is larger than or equal to the threshold value during a predetermined period of time is larger than or equal to a predetermined number of times, the control unit maintains the power state of the information processing apparatus in the first power state.

Abstract: There is provided a printed circuit board, on which a piezoelectric element for generating vibration is mounted, is fixed to a pedestal. Two slits are formed on a straight line that connects first position where the piezoelectric element is mounted on the printed circuit board and a second position where the printed circuit board is in contact with the pedestal.

Abstract: A human presence sensor unit in which an ultrasonic wave sensor is mounted is fixed to a frame sheet metal of an image forming apparatus with a pedestal interposed therebetween. The pedestal is made of a synthetic resin material, and the frame sheet metal is made of a metal material. As the pedestal and the frame sheet metal are made of different materials, a difference in the acoustic impedance is produced between the pedestal and the frame sheet metal.

Abstract: An MFP includes a substrate on which an ultrasonic sensor that outputs a sound wave through vibration is mounted, a horn in a tubular shape configured to limit an output direction of the sound wave output from the ultrasonic sensor, and a buffer member provided between a surface of the substrate on a side on which the ultrasonic sensor is provided and an opening on one side of the horn.

Abstract: An image forming apparatus measures the distance between the image forming apparatus and an object located in the periphery of the image forming apparatus each predetermined amount of time. Then, whether or not the object is a human is detected on the basis of the measured distance and a moving amount of the object each predetermined amount of time. Furthermore, the image forming apparatus controls the power supply state of the image forming apparatus in accordance with the result of the human detection.

Abstract: An information processing apparatus includes a sonic wave output unit that outputs a sonic wave. A horn restricts an output direction of the sonic wave output from the sonic wave output unit. A cover member is provided on the sonic wave output unit, wherein a region on the cover member corresponding to an opening of the horn is provided with a horizontally arranged slit having a width equal to or larger than a horizontal width of the opening.

Abstract: An information processing apparatus including: a sonic sensor that outputs a sonic wave and receives a reflected wave of the output sonic wave; and a control unit configured to determine whether a person exists on a periphery of the information processing apparatus based on distance data and background data, wherein the distance data indicates intensity of a reflected wave in fixed time units received by the sonic sensor during a predetermined period of time after a sonic wave is output from the sonic sensor, the fixed time units being obtained by dividing the predetermined period of time, and the background data is past distance data prepared in advance.

Abstract: The distance between an image forming apparatus and an object located around the apparatus is detected, and the apparatus is returned from a power-saving state when the distance becomes shorter than a predetermined distance. Also, the image forming apparatus is returned from a power saving state, even if the distance is longer than the predetermined distance, in a case where the detected distance decreases for every predetermined time.