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Information recording medium wherein stream convertible at high-speed is recorded, and recording apparatus and recording method therefor

A technology of information recording and video information, applied in the direction of recording information storage, using detectable carrier information, recording signal processing, etc., can solve the problems of reducing image quality and sound quality, time-consuming, etc., and achieve the effect of easy editing

Active Publication Date: 2007-03-28
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, converting a stream multiplexed into MPEG_TS to MPEG_PS involves complex recomputation of decoder buffer management, TS2PS conversion is time-consuming and often involves re-encoding of elementary streams, resulting in reduced image quality and sound quality

Method used

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  • Information recording medium wherein stream convertible at high-speed is recorded, and recording apparatus and recording method therefor
  • Information recording medium wherein stream convertible at high-speed is recorded, and recording apparatus and recording method therefor
  • Information recording medium wherein stream convertible at high-speed is recorded, and recording apparatus and recording method therefor

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no. 1 approach

[0308] The basic recording and playback operations of the data recording and reproducing apparatus according to the present invention have been generally described above, and therefore, only the basic operation of recording analog line input will be specifically described below with reference to FIG. 20 . The object type recorded in this example is TS1_VOB.

[0309] An analog line-in recording request from a user is transmitted from the user interface 222 to the system controller 212 . Then, the system controller 212 sends a receive command to the line input unit 223 and a data encoding command to the encoder 214 .

[0310] The MPEG transport stream from encoder 214 is sent to track buffer 220 .

[0311] To generate the VOB information (TS1_VOBI) of the encoded MPEG transport stream (TS1_VOB), the encoder 214 first sets time stamp information as a presentation start time (TS1_VOB_V_S_PTM), and sends it to the system controller 212 . This start time value is set as Start_PTM ...

no. 2 approach

[0391]

[0392] Another embodiment of the present invention is described below. First, the encoder of the data recording apparatus according to the present invention will be described by focusing on the encoding process of receiving and self-encoding AV input into an MPEG transport stream.

[0393] Fig. 33 shows the configuration of an encoder in a data recording apparatus according to the present invention. As shown, encoder 214 includes elementary stream encoders 230 a , 230 b , and 230 c , and system encoder 232 . Encoder 214 receives a control signal from system controller 212, and then performs an encoding process through elementary stream encoders 230a, 230b, and 230c, or system encoder 232, while switching between elementary encoding and system encoding. Each elementary stream encoder 230a, 230b, and 230c receives video, audio, and VBI (vertical blanking interval) signals for encoding.

[0394] Video encoder 230a receives control signals from system controller 212 a...

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PUM

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Abstract

An information recording medium wherein a stream, which is recorded in a control format allowing format conversion from a first format (MPEG-TS) to a second format (MPEG-PS) and is seamlessly connected, can be converted into a second stream, and an apparatus and a method for recording information in the information recording medium. The control format is provided for converting the first format (for instance, MPEG transport stream) into the second format (for instance, MPEG program stream). Seamless reproduction is performed by using a third system stream (Bridge VOB), which is composed of each of the parts of the two seamlessly connected system streams. A video information reproduction time by data control unit (Capsule) at a third system stream start is 0.4 second or more but less than 1 second, according to the control format.

Description

technical field [0001] The present invention relates to an information recording medium capable of recording or reproducing and storing multimedia data including data in various formats such as moving images, still images, audio data, and data broadcasting. More particularly, the present invention relates to a recording medium that records multimedia data in a constrained format that allows conversion from one format in which the data is recorded to a different format. The present invention also relates to an apparatus and method for recording data on such an information recording medium. Background technique [0002] Rewritable optical discs have had a maximum storage capacity of about 650MB, but the introduction of DVD-RAM discs, a phase change type of storage medium, has pushed this limit to several gigabytes. Combined with the actual use of MPEG (especially MPEG-2) digital AV data encoding standards, DVD-RAM is not limited to computer applications, and will soon find it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/92G11B20/10G11B20/12G11B27/00G11B27/10G11B27/30G11B27/32H04N5/85H04N9/804
CPCH04N5/85H04N5/783G11B2220/2575G11B27/105H04N5/781H04N9/8063H04N2005/91321H04N5/775G11B2020/10675G11B2220/2562H04N9/8042G11B2220/41G11B2220/216H04N5/765H04N9/8216G11B27/329H04N9/7921G11B20/10527H04N9/8227H04N9/8205H04N5/907G11B27/3027G11B20/12G11B27/00H04N5/92H04N9/804
Inventor 矢羽田洋
Owner PANASONIC CORP
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