Patent ID: 7603693
Filing Date: 2009-10-13
Classification: H04B

Abstract:
1. A CATV station apparatus included in a CATV system for performing bi-directional communications using a bi-directional transmission line which is formed by connecting an optical fiber and a coaxial transmission line, the CATV station apparatus comprising: at least one optical receiving section for receiving a signal transmitted through the optical fiber, and converting the received signal to an electrical signal; a signal processing section for performing a predetermined process on a signal output from the at least one optical receiving section; at least one state detecting section for detecting a reception state of the at least one optical receiving section; and at least one signal interrupting section provided between the at least one optical receiving section and the signal processing section for interrupting, in accordance with the reception state detected by the at least one state detecting section, a signal flow heading from the at least one optical receiving section toward the signal processing section.