HIGH-DEFINITION CCTV SYSTEM HAVING MULTIPLEX TRANSFERRING DEVICE AND METHOD FOR OPERATING THEREOF

摘要

PURPOSE: A method for operating a high-definition CCTV system which has a multiplex transceiver device is provided to transmit signals integrally through a number of CCTV cameras and then to reproduce the signals individually. CONSTITUTION: A coupling and amplifying unit of a CCTV transmission device couples and amplifies RF encoding signals with different bands. A channel control unit of a CCTV receiver device detects RF encoding signals per transmission band from the RF encoding signals received from the CCTV transmitter device(S220). A multi demodulation control unit allocates the RF encoding signals to each demodulator(S230). A multi decoding control unit transmits the demodulated RF encoding signals to each decoding unit simultaneously. Decoding units transmit decoding command signals for the identified RF encoding signal(S280). [Reference numerals] (AA) Start; (BB) End; (S210) Receive an RF signal of a CCTV transmission device; (S220) Detect the RF signal per transmission band; (S230) Allocate the RF signal detected per transmission band to a demodulator; (S240) Demodulate each encoded signal in each demodulator and simultaneously transmit the signals; (S250) Individually receive the demodulated RF signal in each decoder; (S260) Set a decoding format by each decoder; (S270) Received RF signal and the decoding format set in a multi-decoding control unit matched?; (S275) Reset the decoding format; (S280) Transmit a decoding command; (S290) Decode