RECORDING APPARATUS AND METHOD, PLAYBACK APPARATUS AND METHOD, AND RECORDING MEDIUM THEREFOR

• US 20080226261A1
• Filed: 05/23/2008
• Published: 09/18/2008
• Est. Priority Date: 04/26/2000
• Status: Abandoned Application

• Current Assignee: Fumiyoshi Abe, Hidehiko Teshirogi, Takuji Himeno, Toshinori Kouzai, Tsukasa Hashino, Yoichiro Tauchi
• Original Assignee: Fumiyoshi Abe, Hidehiko Teshirogi, Takuji Himeno, Toshinori Kouzai, Tsukasa Hashino, Yoichiro Tauchi
• Inventors: Himeno, Takuji, Abe, Fumiyoshi, Hashino, Tsukasa, Teshirogi, Hidehiko, Kouzai, Toshinori, Tauchi, Yoichiro
• Application Number:
  US12/126,093
• Publication Number:
  US 20080226261A1
• Time in Patent Office: Days
• US Class Current: 386/105
• CPC Class Codes: H04N 9/7921 for more than one processing mode
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

Audio signals and video signals are recorded as follows. Three video PES packets, each being formed of one video frame, are combined to form a video editing unit. Then, the video editing unit and the associated audio editing unit are alternately disposed on a magnetic tape. The recorded PES packets are output as a TS as follows. A STC is initialized, and then, PSI packets of a PAT and a PMT are output. TS packets specially used for a PCR for storing the STC are then output at certain intervals. Subsequently, video PES packets are converted into TSs, and the output of the video TSs is started while synchronizing a time obtained by subtracting vbv_delay from the first I-picture DTS with the STC. Audio PES packets are converted into TSs, and the output of the audio TSs is started while synchronizing a time obtained by subtracting the start up delay from the first frame with the STC. Data streams are recorded in the following manner. The three MSBs of a sync block (SB) header indicate the type of data to be recorded in the following data area. If the data type is PES-VIDEO or PES-AUDIO, a full/partial flag is recorded in the fourth MSB of the SB header. In the subsequent four LSBs, the continuity count value representing the continuity of the same type of SBs is recorded.

Claims

1. A recording apparatus for recording an audio signal and a video signal on an information recording medium, comprising:

video packetized elementary stream packet generating means for generating video packetized elementary stream packets by dividing a video elementary stream in which a video signal is compressed and coded according to a predetermined method by a predetermined number of video frames and by adding a header;

audio packetized elementary stream packet generating means for generating audio packetized elementary stream packets by dividing an audio elementary stream in which an audio signal is compressed and coded according to a predetermined method by a predetermined number of audio frames and by adding a header;

video packetized elementary stream packet unit generating means for generating a video packetized elementary stream packet unit by combining a predetermined number of the video packetized elementary stream packets;

audio packetized elementary stream packet unit generating means for generating an audio packetized elementary stream packet unit by combining the audio packetized elementary stream packets corresponding to the video packetized elementary stream packet unit;

sync block generating means for generating sync blocks by alternately disposing the video packetized elementary stream packet unit and the audio packetized elementary stream packet unit and by converting the video packetized elementary stream packet unit and the audio packetized elementary stream packet unit into a predetermined recording format; and

recording means for recording the sync blocks on said information recording medium.

2-34. -34. (canceled)