Video recording apparatus with pre-event circulation recording function
First Claim
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1. A video recording apparatus with a pre-event circulation recording function, the video recording apparatus comprising:
- a video receiver configured to receive a video captured in real time by at least one camera;
a nonvolatile storage unit configured to store the received video; and
a recording controller configured to control a pre-event video generated before an event occurs to be circulation recorded on a pre-event storage region of the nonvolatile storage unit while complying with a pre-event storage period, and control a post-event video generated after the event occurs to be recorded on a post-event storage region allocated separately from the pre-event storage region,wherein, when the pre-event storage period is temporarily not complied with due to the circulation recording of the pre-event video, the recording controller allocates a spare storage region after the pre-event storage region for complying with the pre-event storage period, andwherein, when returning to a start of the pre-event storage region after recording the pre-event video which has a length satisfying the pre-event storage period, the recording controller records the pre-event video on the spare storage region prior to returning to the start of the pre-event storage region in order to comply with the pre-event storage period irrespective of initial data of the pre-event storage region being overwritten when returning to the start of the pre-event storage region.
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Abstract
A video recording apparatus with a pre-event circulation recording function is provided. A limitation on memory capacity may be removed by recording a pre-event video directly on a nonvolatile storage medium, such as a hard disk drive (HDD), without using a buffer according to a circulation recording method during pre-event recording performed to record videos before and after an event occurs.
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Citations
13 Claims
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1. A video recording apparatus with a pre-event circulation recording function, the video recording apparatus comprising:
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a video receiver configured to receive a video captured in real time by at least one camera; a nonvolatile storage unit configured to store the received video; and a recording controller configured to control a pre-event video generated before an event occurs to be circulation recorded on a pre-event storage region of the nonvolatile storage unit while complying with a pre-event storage period, and control a post-event video generated after the event occurs to be recorded on a post-event storage region allocated separately from the pre-event storage region, wherein, when the pre-event storage period is temporarily not complied with due to the circulation recording of the pre-event video, the recording controller allocates a spare storage region after the pre-event storage region for complying with the pre-event storage period, and wherein, when returning to a start of the pre-event storage region after recording the pre-event video which has a length satisfying the pre-event storage period, the recording controller records the pre-event video on the spare storage region prior to returning to the start of the pre-event storage region in order to comply with the pre-event storage period irrespective of initial data of the pre-event storage region being overwritten when returning to the start of the pre-event storage region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification