Matsushita Electric Industrial Co., Ltd.

Toshio Mizuno

Motoshi Suzuki

Tsutomu Kumazaki

Tomoko Yamaguchi

An image recording and replaying apparatus in which a repeat recording control unit receives specification of a repeat recording time period, and instructs an image data recording unit to record image data; the image data recording unit records the image data into files having capacity corresponding to a predetermined time period; a replay control mode setting unit, under control of the repeat recording control unit, sets an all-replays-available mode for files recorded within the specified repeat recording time period back from the current time, and sets a replay restriction mode for a file that was recorded in the predetermined time period immediately before the repeat recording time period; and a replay control mode judging unit outputs a warning that special replays other than fast forward are not available if it judges that a currently replayed file is set to the replay restriction mode.

Image recording and replaying apparatus, method, program, and computer-readable recording medium recording the program

Upon receipt of a segment name obtainment request, the segment name generation unitgenerates a segment name composed of (1) a file name of a file to which the segment belongs and (2) a number indicating a serial number of the segment in the file. Upon receipt of an access request specifying a segment name, the segment identification unitrefers to the segment name to detect the file name and the serial number of the segment in the detected file. The segment position detection unitthen refers to the file information storage unitand the segment information storage unitto detect a position where a segment is to be accessed.

File management apparatus and method

In case of a file delete processing in a nonlinear video editing apparatus and so on, it is an a purpose to provide a file management apparatus capable to prevent an user from deleting another file by mistake other than a file to be deleted at a delete processing and a method. Thereof, the file management method storing a data into a storage means in a file format and managing said data wherein said delete object file stored in said storage means is deleted by a delete instruction of an user in a state of displaying contents of said delete object file by reading out of said storage means. And after displaying contents of the delete object file by reading out of said storage means, the delete processing can be canceled.

File management apparatus and file management method

The playback time of a video stream can be expanded by outputting twice frames having a low rate of video change and a low audio level, and the playback time can be compressed by dropping frames having a low rate of video change and a low audio level. The playback time can thus be increased or decreased easily and in a short time compared with methods in which the playback time is increased or decreased by re-editing. The viewer also perceives less unnatural video or audio compared with methods in which the playback time is increased or decreased by varying the playback speed because there is no slowing of image motion with an accompanying drop in audio pitch, nor is there a quickening of image motion with an accompanying rise in audio pitch.

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Nagoya, Japan

Toshio Mizuno