Method of storing digital video captured by an in-car video system
First Claim
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1. A method of storing a video clip captured using an in-car video system, the video clip having an associated frame rate, the method comprising the steps of:
- selecting a video clip from video clips stored on a digital storage medium, where the step of selecting is performed according to a length of time a video clip has been stored on the digital storage medium; and
downgrading the selected video clip so that a frame rate of the downgraded video clip is lower than a frame rate of the selected video clip prior to downgrading; and
storing the downgraded video clip at the lower frame rate.
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Abstract
A method of storing digital video is provided where an original video clip is selected, according to selection criteria, from video clips stored on a digital storage medium. The frame rate associated with the selected video clip is lowered and a downgraded version of the original video clip is written to a digital storage medium at the lowered frame rate. The original video clip may then be overwritten or erased to thereby reduce the storage space requirements for the downgraded video clip by approximately the percentage reduction in downgraded frame rate.
125 Citations
19 Claims
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1. A method of storing a video clip captured using an in-car video system, the video clip having an associated frame rate, the method comprising the steps of:
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selecting a video clip from video clips stored on a digital storage medium, where the step of selecting is performed according to a length of time a video clip has been stored on the digital storage medium; and downgrading the selected video clip so that a frame rate of the downgraded video clip is lower than a frame rate of the selected video clip prior to downgrading; and storing the downgraded video clip at the lower frame rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating a digital storage medium used to store video clips of scenes captured by a camera, the video clips each having an associated frame rate and being chronologically stored on the digital storage medium from oldest to youngest, the method comprising the steps of:
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downgrading the oldest video clip to a lower associated frame rate to thereby reduce the amount of space required to store the oldest video clip; and storing the downgraded video clip at the lower associated frame rate on the digital storage medium. - View Dependent Claims (13, 14, 15, 16)
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17. A digital video storage system, comprising:
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a digital storage medium; and a processor for downgrading digital video clips of scenes captured by an in-car video system camera, the video clips each having an associated frame rate and stored on the digital storage medium so that a frame rate of the downgraded video clips is lower than a frame rate of the selected video clips prior to downgrading, wherein the video clips selected to be downgraded by said processor are selected according to a length of time a video clip has been stored on said digital storage medium. - View Dependent Claims (18, 19)
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Specification