Method for video/audio recording using unrestricted pre-event/post-event buffering with multiple bit and frame rates buffer files
First Claim
1. A vehicle-mounted digital video recording device for capturing video data during an event comprising:
- a storage medium;
a buffer; and
a processing device configured to record video data for a first pre-determined amount of time into the buffer prior to receiving a signal indicating a start of the event, continue to record video data of the event into the buffer after receiving the signal indicating the start of the event, continue to record video data for a second pre-determined amount of time after receiving a signal indicating an end of the event, and extract the video data from the buffer and store it in a storage medium.
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Accused Products
Abstract
Aspects of the present invention include method and apparatuses that may be utilized to more efficiently use available storage space for a digital video recording system in a law enforcement vehicle and final “backend storage systems.” In one embodiment of the present invention, video and audio data is recorded in one or more buffers when a triggering event is activated, while a digital video recording device accounts for specified pre-event time, a time period before a first triggering event has been activated, and a post-event time, a time period after a second triggering event has been activated. The system will tag the actual start and stop points of events in one or more buffers based on a first and a second triggering event and will then include the pre-event and post-event data along with specified data. The system will then extract the event from one or more buffer files and write the event into final video files to be stored in a hard disk drive. By recording the pre-event and post-event data in multiple buffer files and extracting the final result from selected buffer files based on the nature of the event type, the system ensures that storage device is effectively used and, in this way, useful information is recorded.
150 Citations
20 Claims
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1. A vehicle-mounted digital video recording device for capturing video data during an event comprising:
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a storage medium;
a buffer; and
a processing device configured to record video data for a first pre-determined amount of time into the buffer prior to receiving a signal indicating a start of the event, continue to record video data of the event into the buffer after receiving the signal indicating the start of the event, continue to record video data for a second pre-determined amount of time after receiving a signal indicating an end of the event, and extract the video data from the buffer and store it in a storage medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for recording video data with a vehicle-mounted digital video capturing device corresponding to an event comprising:
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recording pre-event video data into a buffer prior to receiving a signal indicating a start of the event;
recording event video data into the buffer after receiving a signal indicating the start of the event;
recording post-event data into the buffer after receiving a signal indicating an end of the event;
extracting the pre-event video data, the event video data and the post-event video data from the buffer after recording a pre-determined amount of video data of the post-event video data into the buffer; and
storing the pre-event video data, the event video data and the post-event video data in a storage medium. - View Dependent Claims (16, 17, 18)
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19. A method for recording video data corresponding to an event, comprising:
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monitoring for a signal indicating a start of an event, recording video data of the event after detecting the signal indicating the start of the event, wherein the video data of the event is stored at different resolutions in at least two separate buffers;
selecting the video data stored in one of the buffers after detecting a signal indicating an end of the event; and
storing the selected video data in a storage medium. - View Dependent Claims (20)
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Specification