Patent ID: 8498521

Claim:
A video reproduction method of performing at least one of fast forward reproduction and fast rewind reproduction by sequentially jumping one picture to another in video in a jump time duration corresponding to a designated speed when a reproduction unit is reproduced, the reproduction unit consisting of a plurality of connected video units each being a series of moving pictures, said video reproduction method comprising: calculating an elapsed jump time duration, the elapsed jump time duration being a time duration to be allocated to a source video unit prior to jumping, within a jump time duration for performing a jump across a video unit boundary in fast forward reproduction or fast rewind reproduction; calculating a remaining jump time duration based on the elapsed jump time duration, the remaining jump time duration being a time duration to be allocated to a destination video unit subsequent to the jumping, within the jump time duration for performing the jump across the video unit boundary in fast forward reproduction or fast rewind reproduction; calculating a reproduction start time based on the remaining jump time duration; and reproducing the video from the reproduction start time, wherein when the video units are switched, in fast forward reproduction, in said calculating of the elapsed jump time duration, the elapsed jump time duration is calculated as a difference between a reproduction time of a last displayed picture in a source video unit prior to the switching and an end time of the source video unit, in said calculating of the remaining jump time duration, the remaining jump time duration is calculated by subtracting the elapsed jump time duration calculated in said calculating of the elapsed jump time duration from the jump time duration corresponding to a designated speed, and in said calculating of the reproduction start time, the reproduction start time is calculated by adding the remaining time duration calculated in said calculating of the remaining time duration to a start time of a destination video unit, and in fast rewind reproduction, in said calculating of the elapsed jump time duration, the elapsed jump time duration is calculated as a difference between a reproduction time of a last displayed picture in a source video unit prior to the switching and a start time of the source video unit, in said calculating of the remaining jump time duration, the remaining jump time duration is calculated by subtracting the elapsed jump time duration calculated in said calculating of the elapsed jump time duration from the jump time duration corresponding to a designated speed, and in said calculating of the reproduction start time, the reproduction start time is calculated by subtracting the remaining time duration calculated in said calculating of the remaining time duration from an end time of a destination video unit.