Recording/reproducing apparatus, recording apparatus, reproducing apparatus, recording method, reproducing method and computer program

• US 8,676,038 B2
• Filed: 06/26/2008
• Issued: 03/18/2014
• Est. Priority Date: 07/05/2007
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kawahara, Minoru, Yamasaki, Kenji
• Primary Examiner(s): Shaw, Peter
• Assistant Examiner(s): Shayanfar, Ali
• Application Number:
  US12/215,356
• Publication Number:
  US 20090010615A1
• Time in Patent Office: 2,091 Days
• Field of Search: 386/326, 375/354
• US Class Current: 386/326
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/322 used signal is digitally coded
• CPC Class Codes: H04N 5/04 Synchronising for television systems using pulse code modulation H04N7/56
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

There is provided a recording/reproducing apparatus that includes an image recording unit for recording moving picture, an audio recording unit for recording audio, a reproduction information recording unit for recording in parallel, at the time of recording moving picture and audio, reproduction information of moving picture and audio, and a reproducing unit reproducing moving picture and audio based on reproduction information, wherein the reproduction information recording unit records, for each chunk of audio data, audio synchronization information for synchronizing video and audio at the time of recording the reproduction information.

Claims

1. A recording method, comprising:

an image recording step of recording moving picture;

an audio recording step of recording audio; and

a reproduction information recording step of recording reproduction information for reproducing said moving picture and said audio together with, at the time of recording said moving picture recorded in said image recording step and said audio recorded in said audio recording step, wherein

said reproduction information includes audio synchronization information for each chunk of audio data, and for a respective frame or frames (i) a group of picture (GOP) top flag which indicates whether or not the respective frame is a top or first frame in the respective GOP, (ii) picture type information which indicates whether the respective frame is an I-picture, a P-picture, or a B-picture, (iii) size of the audio data, (iv) relative or absolute address of the audio data, (v) delay information of the audio data which represents a time delay between the respective audio data and a corresponding portion of the moving picture, (vi) size of moving picture data, and (vii) absolute address of the moving picture data, such that said reproduction information recording step records, for said each chunk of audio data, the audio synchronization information for synchronizing moving picture and audio, in parallel with said reproduction information at the time of recording said reproduction information, and records the group of picture (GOP) top flag, the picture type information, the audio synchronization information for said each chunk of audio data, the size of audio data, the relative or absolute address of the audio data, the delay information of the audio data, the size of moving picture data, and the absolute address of the moving picture data for the respective frame or frames, and wherein said reproduction information further includes information corresponding to number of frames skipped, number of frames to be reproduced, and frame number of image to be used in a list of thumbnail images.

2. A non-transitory computer readable memory having stored therein a computer program for enabling a computer to execute processing that includes:

an image recording step of recording moving picture;

an audio recording step of recording audio; and

a reproduction information recording step of recording reproduction information for reproducing said moving picture and said audio together with, at the time of recording said moving picture recorded in said image recording step and said audio recorded in said audio recording step, wherein

said reproduction information includes audio synchronization information for each chunk of audio data, and for a respective frame or frames (i) a group of picture (GOP) top flag which indicates whether or not the respective frame is a top or first frame in the respective GOP, (ii) picture type information which indicates whether the respective frame is an I-picture, a P-picture, or a B-picture, (iii) size of the audio data, (iv) relative or absolute address of the audio data, (v) delay information of the audio data which represents a time delay between the respective audio data and a corresponding portion of the moving picture, (vi) size of moving picture data, and (vii) absolute address of the moving picture data, such that said reproduction information recording step records, for said each chunk of audio data, the audio synchronization information for synchronizing moving picture and audio, in parallel with said reproduction information at the time of recording said reproduction information, and records the group of picture (GOP) top flag, the picture type information, the audio synchronization information for said each chunk of audio data, the size of audio data, the relative or absolute address of the audio data, the delay information of the audio data, the size of moving picture data, and the absolute address of the moving picture data for the respective frame or frames, and wherein said reproduction information further includes information corresponding to number of frames skipped, number of frames to be reproduced, and frame number of image to be used in a list of thumbnail images.

3. A recording apparatus, comprising:

an image recording unit to record moving picture;

an audio recording unit to record audio; and

a reproduction information recording unit to record reproduction information for reproducing said moving picture and said audio together with, at the time of recording said moving picture and said audio, wherein

said reproduction information includes audio synchronization information for each chunk of audio data, and for a respective frame or frames (i) a group of picture (GOP) top flag which indicates whether or not the respective frame is a top or first frame in the respective GOP, (ii) picture type information which indicates whether the respective frame is an I-picture, a P-picture, or a B-picture, (iii) size of the audio data, (iv) relative or absolute address of the audio data, (v) delay information of the audio data which represents a time delay between the respective audio data and a corresponding portion of the moving picture, (vi) size of moving picture data, and (vii) absolute address of the moving picture data, such that said reproduction information recording unit records, for said each chunk of audio data, the audio synchronization information for synchronizing moving picture and audio, in parallel with said reproduction information at the time of recording said reproduction information, and records the group of picture (GOP) top flag, the picture type information, the audio synchronization information for said each chunk of audio data, the size of audio data, the relative or absolute address of the audio data, the delay information of the audio data, the size of moving picture data, and the absolute address of the moving picture data for the respective frame or frames, and wherein said reproduction information further includes information corresponding to number of frames skipped, number of frames to be reproduced, and frame number of image to be used in a list of thumbnail images.