Apparatus and method for transition point detection, recording apparatus and record playback apparatus
AssigneeNEC Electronics Corporation
InventorShoji Nakashima
Life of this patent
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Abstract
A digital recording apparatus of the present invention comprises an encoder for generating an encoded stream by encoding an input signal comprised of a digital video and digital audio signals, and a system controller for receiving encode information of the encoder and generating a management file of the encoded stream. The system controller detects a transition point of a video or an audio signal in the input signal according to a change of compressed data amount for the encoder to generate the encoded stream and generates the management file added with information of the transition point.
Claims18
A transition point detection apparatus comprising:
- an encoder that generates an encoded stream by encoding an input signal comprised of a digital video and/or digital audio signal;
- and
- a transition point detector that detects a transition point of video and/or audio signal in the input signal according to a change of compressed data amount for the encoder to generate the encoded stream.
A method for detecting a transition point comprising:
- generating an encoded stream by encoding a digital video and digital audio signals;
- and
- detecting a transition point of a video and an audio signals in the digital video and digital audio signals according to a change of compressed data amount for the encoder to generate the encoded stream.
A recording apparatus comprising:
- an encoder that encodes an input signal comprised of a digital video and/or digital audio signal to generate an encoded stream;
- and
- a system controller that detects a transition point of a video and/or an audio signal in the input signal according to a change of compressed data amount for the encoder to generate the encoded stream and generates a management file added with information of the transition point.
A record playback apparatus comprising:
- an encoder that encodes an input signal comprised of a digital video signal and/or digital audio signal;
- a system controller that detects a transition point of a video and/or an audio signal in the input signal according to a change of compressed data for the encoder to generate the encoded stream and generates a management file added with information of the transition point;
- a recording unit that records the encoded stream and the management file;
- and
- a playback unit that decodes the encoded stream recorded to the recording unit and plays it according to the transition point information added to the management file.
Dependencies are inferred from the claim text.