×

Apparatus and method for operating day and night modes of monitoring camera by measuring brightness in no video signal interval

  • US 20040218090A1
  • Filed: 05/29/2003
  • Published: 11/04/2004
  • Est. Priority Date: 04/30/2003
  • Status: Abandoned Application
First Claim
Patent Images

1. An apparatus for operating a day and night mode of a monitoring camera by measuring a brightness in a no video signal interval, comprising:

  • a camera for photographing a certain zone which is a photographing object in a day mode or a night mode in accordance with an external control;

    a detection means for detecting a brightness of a photographing object in accordance with an external control;

    a control means which controls an entire driving operation of the camera, sets a lighting to an off state when a non video signal interval is extracted from a video signal inputted from the camera, controls an operation of the detection means, receives a detection signal with respect to the current photographing object, measures a brightness of the photographing object based on the detection signal from the detection means, judges a day mode or a night mode, generates a control signal for maintaining the current off state of lighting when the mode is the day mode, and generates a control signal for turning on the off state lighting when the mode is the night mode;

    a lighting means which is turned off or on in accordance with an on and off control signal from the control means which turns off the lighting in accordance with a control of the control means that checked the no video signal interval and sets the day mode or night mode based on a brightness measurement in the no video signal interval; and

    a storing means for storing a video signal photographed by the camera in accordance with a control of the control means and outputting a video signal based on a request of the control means.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×