Abstract: Proposed is an acoustic output device that obtains enough distance attenuation to achieve localization of a sound field by controlling the driving of a loudspeaker array by use of a more compact shape. The acoustic output device 10 comprises: a loudspeaker array 20 that includes a plurality of loudspeakers 20-1, 20-2, . . . , 20-N arranged in a two-dimensional plane; and an amplifier array 40 that includes a plurality of amplifiers 40-1, 40-2, . . . , 40-N that control the amplitude and phase of the drive signals for each loudspeaker according to the eigenvectors of the predetermined radiation mode of the loudspeaker array 20.

Abstract: Proposed is an acoustic output device that obtains enough distance attenuation to achieve localization of a sound field by controlling the driving of a loudspeaker array by use of a more compact shape. The acoustic output device 10 comprises: a loudspeaker array 20 that includes a plurality of loudspeakers 20-1, 20-2, . . . , 20-N arranged in a two-dimensional plane; and an amplifier array 40 that includes a plurality of amplifiers 40-1, 40-2, . . . , 40-N that control the amplitude and phase of the drive signals for each loudspeaker according to the eigenvectors of the predetermined radiation mode of the loudspeaker array 20.

Abstract: An image forming apparatus is provided. The image forming apparatus may include an image forming unit to print data, a body portion disposed in the image forming unit, a display unit disposed on the body portion to be spaced apart from the body portion at a predetermined interval, and a scan unit disposed below the display unit, and a scan space is formed between the image forming unit and the display unit.

Abstract: An image forming device is provided. The image forming device includes at least one memory, a display configured to display at least one print image based on at least one file, and at least one processor configured to control to select at least one of the at least one displayed print image, as a page to print (print page), based on a received instruction, perform a print process based on the at least one selected print page, acquire the at least one file from at least one file storage area connected to an external system and provide the acquired file to the display, and create print data, based on at least one print page that has received a selection instruction via the selection.

Abstract: An image forming apparatus is provided. The image forming apparatus may include an image forming unit to print data, a body portion disposed in the image forming unit, a display unit disposed on the body portion to be spaced apart from the body portion at a predetermined interval, and a scan unit disposed below the display unit, and a scan space is formed between the image forming unit and the display unit.