Back to results
US 10,748,575 B2Granted
Recorder and method for retrospective capture
AssigneeKnapp Investment Company Limited
InventorChristopher A. Wiklof
Life of this patent
Estimating the term…
Abstract
A system and method allows a user to enter a command capture audio, video, and/or still pictures that commence at a moment in time earlier than entering the command.
Claims25
A recording method for capturing events observed directly by a user, the method comprising:
- positioning a portable video recorder, which is positioned on an item worn by the user, to correspond to a field of view of the user;
- starting a portable video recorder after power-on to enter a ready state, the portable video recorder including at least a capture apparatus, a provisional memory, and a permanent memory;
- after receiving a user-initiated provisional video capture signal, entering the portable video recorder into a provisional capture mode, and continuously capturing a stream of images using the capture apparatus of the portable video recorder;
- storing the captured stream of images in the provisional memory of the portable video recorder on the item worn by the user;
- holding frames comprising the images of the stream of images only for a period of time as provisional data in the provisional memory included in the portable video recorder;
- receiving a first user-initiated trigger signal and, upon receiving the trigger signal,
- creating a mark indicating content of the provisional memory starting from a time T0 earlier than the first user-initiated trigger signal;
- transferring, into the permanent memory, the content of the provisional memory starting from the time T0 based on the mark and extending forward in time continuously to a later time, an interval of continuous permanently-recorded time being defined between T0 and the later time;
- wherein T0 is a time of recording of an earliest non-discarded frame stored in the provisional memory at a time T1;
- T1 is a time of the first user-initiated trigger signal;
- and
- T2 is a time of a second user-initiated trigger signal;
- and
- wherein images captured during time T1 to T2 are recorded on the permanent memory, and images captured during time T0 to T1 are automatically transferred from the provisional memory to the permanent memory, such that images captured during time T0 to T2 are continuously permanently-recorded on the permanent memory.
11 more elements
A portable video recorder for retrospectively recording images directly viewable by a user, the portable video recorder comprising:
- a capture apparatus configured to produce a continuous stream of images, the capture apparatus being mountable on an item to be worn by the user;
- a provisional memory disposed within the portable video recorder and configured to receive frames comprising the images of the stream of images as provisional data from the capture apparatus and hold the provisional data for only a period of time after the receipt of the provisional data;
- a user-command device;
- and
- a controller operatively coupled to the user-command device, the provisional memory, and the capture apparatus, the controller being configured to:
- after the portable video recorder is powered-on and enters a ready state, receive a command from the user-command device to enter a provisional capture mode to start capturing the stream of images on the provisional memory, and then to
- receive a first user-initiated trigger signal from the user-command device to create a mark indicating content of the provisional memory starting from a time T0 earlier than the first user-initiated trigger signal and to transfer into a permanent memory the content of the provisional memory starting from the time T0 based on the mark and extending forward in time continuously to a later time, an interval of continuous permanently-recorded time being defined between T0 and the later time;
- wherein T0 is a time of recording of an earliest non-discarded frame stored in the provisional memory at a time T1;
- T1 is a time of the first user-initiated trigger signal;
- and
- T2 is a time of a second user-initiated trigger signal;
- and
- wherein the later time is greater than the time T1.
10 more elements
Dependencies are inferred from the claim text.