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US 2001/0055467 A1Published application
Digital video recording apparatus
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTokuo Nakatani, Kazuhiko Nakamura
Life of this patent
Estimating the term…
Abstract
A recording apparatus that records video data and corresponding playback control information onto a recording medium. A recovery processing unit detects whether an abnormality occurred and stopped recording of video data, and if it detects the abnormality, it generates playback control information corresponding to the video data having been recorded on the recording medium up to the point when the abnormality occurred, where the playback control information controls playback operation of a playback apparatus, and the abnormality indicates that a recording of video data abnormally stopped and corresponding playback control information was not recorded onto the recording medium.
Claims26
A recording apparatus comprising:
- a recording unit operable to record video data and playback control information corresponding to the video data onto a recording medium, the playback control information controlling playback operation of a playback apparatus;
- a detecting unit operable to detect an abnormality which indicates that the recording unit abnormally stopped recording of a piece of video data and failed to record a corresponding piece of playback control information onto the recording medium;
- a generating unit operable to, when the detecting unit detects the abnormality, generate a piece of playback control information corresponding to the piece of video data which was abnormally stopped being recorded;
- and
- a controlling unit operable to control the recording unit to record the generated piece of playback control information onto the recording medium.
2 more elements
A recording apparatus comprising:
- a recording unit operable to record video data and playback control information corresponding to the video data onto a recording medium, the playback control information controlling playback operation of a playback apparatus;
- a detecting unit operable to detect that the recording unit stopped recording due to lack of recording space in the recording medium;
- a generating unit operable to, when the detecting unit detects that the recording unit stopped recording, generate a piece of playback control information corresponding to the piece of video data which was abnormally stopped being recorded;
- and
- a controlling unit operable to delete from the recording medium the end portion of the piece of video data which was stopped being recorded and controls the recording unit to record the generated piece of playback control information onto the recording medium.
2 more elements
A recording apparatus comprising:
- a recording unit operable to record video data and playback control information corresponding to the video data onto a recording medium, the playback control information containing (a) section information indicating a playback section of a corresponding piece of video data to the playback apparatus and (b) an address table that includes discrete recording addresses of video data, the address table being referred to by the playback apparatus for a fastforward playback and a rewinding playback;
- a storing unit operable to store video unit information into a nonvolatile memory, the video unit information showing recording addresses and sizes of video units included in a piece of video data that is being recorded by the recording unit, wherein
- the detecting unit operable to detect whether the recording unit abnormally stopped recording of a piece of video data due to a stoppage of power supply to the recording apparatus;
- a generating unit operable to, when the detecting unit detects that the recording unit abnormally stopped recording, generate a piece of playback control information corresponding to the piece of video data which was abnormally stopped being recorded;
- and
- a controlling unit operable to control the recording unit to record the generated piece of playback control information onto the recording medium.
3 more elements
A recording method comprising:
- a first recording step for recording video data and playback control information corresponding to the video data onto a recording medium, the playback control information controlling playback operation of a playback apparatus;
- a detecting step for detecting an abnormality which indicates that the recording step abnormally stopped recording of a piece of video data and failed to record a corresponding piece of playback control information onto the recording medium;
- a generating step for, when the detecting step detects the abnormality, generating the piece of playback control information corresponding to the piece of video data which was abnormally stopped being recorded;
- and
- a second recording step for recording the generated piece of playback control information onto the recording medium.
2 more elements
A computer-readable recording medium storing a program that allows a computer in a recording apparatus to execute:
- a first recording step for recording video data and playback control information corresponding to the video data onto a recording medium, the playback control information controlling playback operation of a playback apparatus;
- a detecting step for detecting an abnormality which indicates that the recording step abnormally stopped recording of a piece of video data and failed to record a corresponding piece of playback control information onto the recording medium;
- a generating step for, when the detecting step detects the abnormality, generating the piece of playback control information corresponding to the piece of video data which was abnormally stopped being recorded;
- and
- a second recording step for recording the generated piece of playback control information onto the recording medium.
2 more elements
A program that allows a computer in a recording apparatus to execute:
- a first recording step for recording video data and playback control information corresponding to the video data onto a recording medium, the playback control information controlling playback operation of a playback apparatus;
- a detecting step for detecting an abnormality which indicates that the recording step abnormally stopped recording of a piece of video data and failed to record a corresponding piece of playback control information onto the recording medium;
- a generating step for, when the detecting step detects the abnormality, generating the piece of playback control information corresponding to the piece of video data which was abnormally stopped being recorded;
- and
- a second recording step for recording the generated piece of playback control information onto the recording medium.
2 more elements
Dependencies are inferred from the claim text.