| 摘要 |
An audio/video device comprises an enclosing cabinet (11) and an electronic circuitry (14) inside the cabinet. The circuitry comprises interface components being light sources (15) and optical detectors (16). Light signals associated with the interface components are received as a control signal or emitted as a feedback signal. The audio/video device comprises a single light guide (17) for transporting the light signals inside the cabinet between a hole or transparent part (12) in the enclosing cabinet and the respective interface components. Interference between the light signals is prevented by optical filters and/or by time multiplexed operation of the interface components. |
