Digital recording and playback apparatus having MPEG code decoder and method therefor

A technology of digital recording and encoder, applied in digital recording/reproduction, digital video signal modification, signal processing using non-self-timed codes, etc., can solve problems such as incompatibility

Inactive Publication Date: 2004-05-26
UNWIRED PLANET INT LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, conventional digital camcorders are not compatible with devices using the MPEG-2 standard

Method used

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  • Digital recording and playback apparatus having MPEG code decoder and method therefor
  • Digital recording and playback apparatus having MPEG code decoder and method therefor
  • Digital recording and playback apparatus having MPEG code decoder and method therefor

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Embodiment Construction

[0023] exist figure 1 In the shown general digital recording and playback apparatus, first and second analog-to-digital converters (ADCs) 110 and 120 convert input analog video and audio signals into digital data, respectively. Also, the video data encoder 130 compresses the video data provided from the first ADC 110 by high-efficiency encoding, and then applies it to the error correction encoder 150 . The audio data encoder 140 encodes the audio data provided by the second ADC 120 so as to be suitable for recording, and then applies it to the error correction encoder 150 . The error correction encoder 150 mixes the video data supplied from the video data encoder 130 and the audio data supplied from the audio data encoder 140 by using a kind of error correction encoding, for example, Reed-Solomon (RS) encoding, in which the data A parity is added to it, and the error-correction-encoded data is output to the record encoder 160. The recording encoder 160 modulates the error co...

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Abstract

A digital recording and playback apparatus adopting an MPEG encoder and decoder, and a method thereof. The digital recording and playback apparatus includes: a first encoder for coding input video data in picture units, and outputting coded video data; a second encoder for coding input audio data and outputting coded audio data; a packetized elementary stream (PES) packetizer for packetizing the coded video data and audio data and user data into each PES, and outputting a video PES, audio PES and user PES; and a transport stream (TS) packetizer for multiplexing the video PES, audio PES and user PES into a TS. The digital recording and playback apparatus can be compatible with a digital television or multimedia applications adopting the MPEG standard, and can perform editing in picture units as well as high-speed search.

Description

technical field [0001] The present invention relates to a kind of digital record and replay device and method thereof that adopts Motion Picture Experts Group (MPEG) coder / decoder (CODEC), relate in particular to a kind of digital record and replay for digital camcorder (videocamcorder) A device and method thereof, the device is compatible with all devices adopting the MPEG standard, in which device the image signal is encoded and decoded according to the MPEG-2 standard. Background technique [0002] Following the MPEG-1 standard, the MPEG-2 standard was introduced in response to the need for high-quality pictures at a higher bit rate. The MPEG-2 standard is used in the fields of broadcast media and storage media, and can provide higher quality than current analog TV. Also, the MPEG-2 standard can be applied to high definition television (HDTV). Therefore, the MPEG-2 standard has a wide range of applications, including: telecommunications, household appliances, computers,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/92G11B20/10G11B20/16H04N7/52H04N19/126H04N19/14H04N19/146H04N19/176H04N19/426H04N19/44H04N19/60H04N19/625H04N19/65H04N19/70H04N19/85H04N19/89H04N19/91
CPCH04N19/00781H04N7/26079H04N7/5046H04N19/00278H04N19/00157H04N7/26164H04N7/26053H04N19/00272H04N7/26244H04N7/305H04N19/0006H04N19/00775H04N7/26127H04N7/50H04N7/26265H04N19/00193H04N19/0009H04N7/30H04N7/52H04N19/00266H04N19/00169H04N7/26271H04N19/115H04N19/124H04N19/14H04N19/146H04N19/152H04N19/172H04N19/174H04N19/176H04N19/60H04N19/61G11B20/16
Inventor 金宰贤
Owner UNWIRED PLANET INT LTD
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