OPTICAL RECEIVER, BANDWIDTH CONTROL METHOD AND BANDWIDTH CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an optical receiver which allows for bandwidth control at a low cost by a remote bandwidth control instruction, when including an amplifier circuit for each of a plurality of frequency bandwidths.;SOLUTION: An optical receiver 4 includes a video signal processing section 8 for processing the video signal of each frequency band received via an optical fiber 20 and outputting the video signal thus processed to a video terminal. The video signal processing section 8 incorporates, as an amplifier circuit for each frequency band, a CATV band amplifier circuit 81, a BS-IF band amplifier circuit 82, and a CS-IF amplifier circuit 83, and incorporates, as a power supply line for supplying power to the amplifier circuit for each frequency band, a power supply section 811, a power supply section 821 and a power supply section 831 that can be controlled independently. Upon receiving a remote bandwidth control instruction via the optical fiber 20, a control section 9 controls on/off of a corresponding power supply section, out of the power supply section 811, power supply section 821 and power supply section 831, in accordance with a bandwidth control instruction thus received.;COPYRIGHT: (C)2014,JPO&INPIT