Patent ID: 7433479

Claim:
A headphone apparatus comprising: two or more input devices including at least i) a first input device to receive a first sound signal comprising a first sound image and ii) a second input device to receive a second sound signal comprising a second sound image from a sound generation device, the second sound image differing in application from the first sound image; a first localization device connected to an output of the first input device, the first localization device for receiving the first sound signal from the first input device and for localizing the first sound image of the first sound signal at one or more positions out of a head of a listener; a second localization device connected to an output of the second input device, the second localization device for receiving the second sound signal from the second input device and for localizing the second sound image of the second sound signal at one or more positions in the head of the listener; a synthesis device connected to the output of the first localization device and to the output of the second localization device, the synthesis device for synthesizing a synthesized sound signal from the first sound image localized by said first localization device and the second sound image localized by said second localization device; an output device for outputting the synthesized sound signal synthesized by said synthesis device; and a radio transmission device and a radio reception device connecting the synthesis device to the output of the first localization device, the radio transmission device for transmitting the first sound image localized by said first localization device, and the radio reception device for receiving the first sound image transmitted from said radio transmission device via a radio communication and for supplying the first sound image to said synthesis device, wherein said first sound image is not inputted into said second input device and said second sound image is not inputted into said first input device.