Patent ID: 9049429
Filing Date: 2015-06-02
Classification: H04L,H04N

Abstract:
1. An apparatus for determining a connection failure of an image input device, comprising: a network connection detection unit configured to detect a network connection between at least one image input device for providing predetermined images and enabling a network connection, and a network video record (NVR) system; wherein the network connection detection unit detects the network connection depending on whether socket information about an internet communication protocol that is received based on the network connection is received; a timer configured to generate signals at regular time intervals in response to clock pulses; a time delay measurement unit configured to measure a time delay based on the signals of the timer if the network connection is not detected; a connection failure determination unit configured to determine that a connection failure has occurred if the time delay is equal to or longer than a preset threshold value; and a video output detection unit configured to detect a connection of the image input device with video output, wherein the time delay measurement unit measures the time delay based on the signals of the timer if the connection with the video output is not detected.