METHOD AND APPARATUS FOR EXCHANGING PROTOCOL

摘要

A method and apparatus for exchanging a protocol is provided. A protocol may be indicated in a preset section of a vertical blanking interval (VBI) of an analog video and thereby transmitted. A protocol transmission apparatus may transmit an analog video signal in which a protocol signal is indicated to a protocol reception apparatus. The protocol reception apparatus may detect a protocol by receiving the analog video signal from the protocol transmission apparatus.

主权项

1. A protocol transmission method performed by a protocol transmission apparatus within a closed-circuit system, the protocol transmission method comprising:
indicating a protocol signal on a first area preset within a vertical blanking interval (VBI) of an analog video signal; and transmitting the analog video signal to a protocol reception apparatus of the closed-circuit system, wherein the first area differs from an area preset with respect to the protocol reception apparatus.