Data recording/reproducing apparatus and method

• US 7,302,158 B1
• Filed: 09/08/2000
• Issued: 11/27/2007
• Est. Priority Date: 09/09/1999
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Murata, Masakazu, Tabuchi, Makoto, Asato, Yoichiro
• Primary Examiner(s): NGUYEN, HUY THANH
• Application Number:
  US09/831,328
• Time in Patent Office: 2,636 Days
• Field of Search: 386/46, 386/52, 386/55, 386/65
• US Class Current: 386/290
• CPC Class Codes: G11B 2220/415 Redundant array of inexpensive disks [RAID] systems
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/036 Insert-editing
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 5/781 on disks or drums
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

When second material data is inserted into first material data, in point and out point are set in the first material data and the second material data to generate editing processing information. On the basis of the editing processing information, there are prepared first virtual file in which recording area of recording medium with respect to the first material data is described by time codes and second virtual file in which recording area of the recording medium with respect to the second material data is described by time codes. Thus, reproduction is carried out from preroll point positioned forward in point of time with respect to the in point up to postroll point positioned backward in point of time with respect to the out point.

Claims

1. A data recording/reproducing apparatus comprising:

recording/reproducing means for recording/reproducing material including video and/or audio data from a non-linearly accessible recording medium;

information file preparing means for preparing an information file relating to a first time position located forward with respect to an editing time period of the recording/reproducing material and a second time position located backward with respect to the editing time period;

control means for controlling the recording/reproducing means to reproduce edited material from the first time position to the second time position of the recording/reproducing material on the basis of the information file; and

a control panel having respective controllers for automatic edit processing and preview processing to emulate a linearly accessible recording medium editor,

wherein a recorded file is reproduced when in automatic edit processing, and a virtual file list is prepared when in preview processing on the non-linearly accessible recording medium.

2. The data recording/reproducing apparatus as set forth in claim 1, wherein the first time position is a preroll point with respect to the editing period and the second time position is a postroll point with respect to the editing period.

3. The data recording/reproducing apparatus as set forth in claim 2, wherein the information file preparing means further comprises reproduction file preparing means for preparing reproduction file indicating the editing time period, and storage means for storing in advance position information relating to period lengths up to the preroll point and the postroll point, thus to prepare the reproduction information from the reproduction file and the position information.

4. The data recording/reproducing apparatus as set forth in claim 3, wherein the reproduction file consists of information indicating reproduction start position from recording start position recorded on the recording medium of the material, and information indicating reproduction end position corresponding to material length to be reproduced from the reproduction start position.

5. The data recording/reproducing apparatus as set forth in claim 1, wherein when reproduction is completed from the first time position to the second time position at the recording/reproducing means, the control means deletes the information file.

6. The data recording/reproducing apparatus as set forth in claim 1, which further comprises display means on which the material reproduced from the recording/reproducing means is displayed,

wherein the material reproduced from the first time position to the second time position is displayed on the display means.

7. The data recording/reproducing apparatus as set forth in claim 1, wherein information relating to the first time position and the second time position comprise time codes.

8. The data recording/reproducing apparatus as set forth in claim 1, wherein information relating to the first time position and the second time position comprise address values on the recording medium.

9. A data recording/reproducing method of providing access to material including video and/or audio data the method comprising:

a first step of recording the material on a non-linearly accessible recording medium;

a second step of preparing information file relating to a first time position located forward with respect to an editing time period of the material and a second time position located backward with respect to the editing time period; and

a third step of reproducing edited material from the first time position to the second time position on the basis of the information file; and

a fourth step of automatic edit processing and preview processing to emulate a linearly accessible recording medium editor,

wherein a recorded file is reproduced when in automatic edit processing, and a virtual file list is prepared when in preview processing on the non-linearly accessible recording medium.

10. The data recording/reproducing method as set forth in claim 9, wherein the second step further includes a step of preparing a reproduction file indicating the editing time period, a step of storing a position information relating to a period length up to a preroll point and a postroll point, and a step of preparing the reproduction information from the reproduction file and the position information.

11. The data recording/reproducing method as set forth in claim 10, wherein the reproduction file consists of information indicating a reproduction start position from a recording start position recorded on the recording medium of the material, and information indicating a reproduction end position corresponding to material length to be reproduced from the reproduction start position.

12. The data recording/reproducing method as set forth in claim 9, wherein the first time position is a preroll point with respect to the editing time period, and the second time position is a postroll point with respect to the editing time period.

13. The data recording/reproducing method as set forth in claim 9, which further includes a fourth step of reproducing the material from the first time position to the second time position thereafter to delete the reproduction information.

14. The data recording/reproducing method as set forth in claim 9, which further includes a fifth step of displaying, on display means, the material which has been reproduced from the first time position to the second time position.

15. The data recording/reproducing method as set forth in claim 9, wherein information relating to the first time position and the second time position comprise time codes.

16. The data recording/reproducing method as set forth in claim 9, wherein information relating to the first time position and the second time position are address values on the recording medium.

17. A method of emulating linear reproducing editing material from a non-linearly accessible recording medium, the method comprising:

recording the editing material on the non-linearly accessible recording medium;

preparing an information file having a first time position located prior in time with respect to an editing material time period and a second time position located later in time with respect to the editing material time period;

reproducing the edited material from the first time position to the second time position on the basis of the information file; and

automatic edit processing and preview processing to emulate linear reproducing editing,

wherein a recorded file is reproduced when in automatic edit processing, and a virtual file list is prepared when in preview processing on the non-linearly accessible recording medium.