Digital video recording method in an audio detection mode
First Claim
1. A digital video recording method in an audio detection mode, for recording and judging whether an audio is detected or not, or analyzing the video taken by the camera, and an audio data inputted from a mike, and then sensing a motion of the video, wherein an operation signal is generated by a camera when sensing a motion by a sensor of the camera, a step for judging whether a motion is generated or not after a digital video processor analyzes a video inputted from said camera, a step for judging an audio signal exceeds the predetermined value or not after a digital signal processor analyzes an audio signal inputted from a mike, a step for recording on said storage medium a video data taken by said camera during a time period which is already set, according to a motion detection mode and an audio detection mode in which an user sets a recording speed and video quality, when said audio signal is generated, a step for judging whether an operation signal is generated from a sensor of said camera after the elapse of said time period, a step for stopping the recording of the video taken by said camera, and the audio data inputted from the mike, or recording varied recording speed and video resolution on said storage medium by varying said recording speed and video resolution from super-high speed and high video resolution into low-speed and low video resolution at predetermined time interval which is already set, based upon said judging result,
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Accused Products
Abstract
The present invention is related to a digital video recording method, and in particular, when a recording mode is audio detection, according to an audio signal transmitted from a mike mounted on a camera or a mike mounted separately, this method records the video taken by said camera during the time period for which a recording speed and video resolution is already set as super-high speed and high video resolution. After the elapse of an already set time period, when the audio signal is sensed, this method records the video by varying the recording speed and video resolution from super-high speed and high video resolution into low-speed and low video resolution at a time interval which is already set. Therefore, it becomes possible to obtain the specific information about the video data which is important in an unmanned security system.
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Citations
1 Claim
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1. A digital video recording method in an audio detection mode, for recording and judging whether an audio is detected or not, or analyzing the video taken by the camera, and an audio data inputted from a mike, and then sensing a motion of the video, wherein an operation signal is generated by a camera when sensing a motion by a sensor of the camera,
a step for judging whether a motion is generated or not after a digital video processor analyzes a video inputted from said camera, a step for judging an audio signal exceeds the predetermined value or not after a digital signal processor analyzes an audio signal inputted from a mike, a step for recording on said storage medium a video data taken by said camera during a time period which is already set, according to a motion detection mode and an audio detection mode in which an user sets a recording speed and video quality, when said audio signal is generated, a step for judging whether an operation signal is generated from a sensor of said camera after the elapse of said time period, a step for stopping the recording of the video taken by said camera, and the audio data inputted from the mike, or recording varied recording speed and video resolution on said storage medium by varying said recording speed and video resolution from super-high speed and high video resolution into low-speed and low video resolution at predetermined time interval which is already set, based upon said judging result,
Specification