Abstract: Provided is a speaker device including a cabinet whose direction is changed in accordance with an installation state, and capable of detecting the direction of the device based on received optical signals. The speaker device can be installed in a state in which the speaker device is placed on a rack such that a receiving unit faces a listening position, and a state in which the speaker device is hung on a wall such that a receiving unit faces the listening position. Voltage converting units are configured to convert photocurrents output by light receiving elements according to received light amounts of an infrared ray from an infrared remote controller to voltage signals to output the signals to a controller. The controller compares amplitudes of the voltage signals to each other, thereby detecting a state (direction) of the speaker device.

Abstract: Provided is a speaker device including a cabinet whose direction is changed in accordance with an installation state, and capable of detecting the direction of the device based on received optical signals. The speaker device can be installed in a state in which the speaker device is placed on a rack such that a receiving unit faces a listening position, and a state in which the speaker device is hung on a wall such that a receiving unit faces the listening position. Voltage converting units are configured to convert photocurrents output by light receiving elements according to received light amounts of an infrared ray from an infrared remote controller to voltage signals to output the signals to a controller. The controller compares amplitudes of the voltage signals to each other, thereby detecting a state (direction) of the speaker device.

Abstract: A speaker apparatus includes: a speaker operable to emit a sound; a receiver operable to receive an operation signal for operating an external apparatus; a relay section; a storage operable to store correspondence between operation information and operation signals that includes a first operation signal and a second operation signal; and a controller: when the operation signal received by the receiver is the first operation signal, operable to cause the relay section to transmit the operation signal received by the receiver to the external apparatus, and operate the speaker apparatus in accordance with operation information that corresponds to the first operation signal; and when the operation signal received by the receiver is the second operation signal, operable to prevent the relay section from transmitting the operation signal received by the receiver to the external apparatus.

Abstract: A relay device includes: a housing including: a first surface; and a second surface which is different from the first surface; a light signal receiving element operable to receive a light signal from outside, the light signal receiving element provided at the first surface of the housing; a light emission element operable to emit light responsive to the light signal received by the light signal receiving element; and a longitudinally elongated light guide member provided at the second surface of the housing, the light guide member to which the light emitted from the light emission element is incident, the light guide member including an emission part which causes the incident light to be emitted to outside from a lateral surface of the light guide member, the lateral surface which extends along a longitudinal direction of the light guide member.

Abstract: A speaker apparatus includes: a speaker operable to emit a sound; a receiver operable to receive an operation signal for operating an external apparatus; a relay section; a storage operable to store correspondence between operation information and operation signals that includes a first operation signal and a second operation signal; and a controller: when the operation signal received by the receiver is the first operation signal, operable to cause the relay section to transmit the operation signal received by the receiver to the external apparatus, and operate the speaker apparatus in accordance with operation information that corresponds to the first operation signal; and when the operation signal received by the receiver is the second operation signal, operable to prevent the relay section from transmitting the operation signal received by the receiver to the external apparatus.

Abstract: A relay device includes: a housing including: a first surface; and a second surface which is different from the first surface; a light signal receiving element operable to receive a light signal from outside, the light signal receiving element provided at the first surface of the housing; a light emission element operable to emit light responsive to the light signal received by the light signal receiving element; and a longitudinally elongated light guide member provided at the second surface of the housing, the light guide member to which the light emitted from the light emission element is incident, the light guide member including an emission part which causes the incident light to be emitted to outside from a lateral surface of the light guide member, the lateral surface which extends along a longitudinal direction of the light guide member.

Abstract: A color display system has an image transforming device transforming an image signal (XC, YC, ZC) of a XYZ colorimetric system to an image signal of a RGB colorimetric system and outputting the image signal of the RGB colorimetric system; and a display receiving the image signal of the RGB colorimetric system which has been output from the image transforming device. The image transforming device has: a converting part; a calculation part; a determination part; and a feedback part.

Abstract: A color display system has an image transforming device transforming an image signal (XC, YC, ZC) of a XYZ colorimetric system to an image signal of a RGB colorimetric system and outputting the image signal of the RGB colorimetric system; and a display receiving the image signal of the RGB colorimetric system which has been output from the image transforming device. The image transforming device has: a converting part; a calculation part; a determination part; and a feedback part.