Signal processing method and apparatus
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorMasahiro Honjo
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Abstract
This invention provides a signal processing apparatus which can monitor the dubbing state at a higher-speed dubbing of digital video data or audio data. This signal processing apparatus comprises a first storage device 101 containing an MPEG system stream as digital data, a second storage device 102 containing an MPEG system stream as the digital data, and a decoder unit 102 for carrying out a decoding process for the digital data read from the first storage device 101, and a decoder unit 103 is constructed to carry out a discrete decoding process for decoding the system stream as digital data transferred from the first storage device 101 to the second storage device 102 at a higher rate than the normal playback transfer rate.
Claims16
A signal processing method which includes a dubbing process for dubbing coded data including at least one of digital video information and digital audio information, comprising:
- a first signal processing step of carrying out a data reading process for reading the coded data from a first storage medium which contains the coded data, at a second average transfer rate which is higher than a first average transfer rate as an average transfer rate required for normal playback of the information;
- and
- a second signal processing step of carrying out a data writing process for writing the coded data read from the first storage medium onto a second storage medium at the second average transfer rate as well as carrying out a decoding process for decoding at least part of the coded data, and repeatedly carrying out a data output process for discretely outputting decoded data obtained by the decoding process so that the output of the decoded data is not interrupted.
A signal processing apparatus which carries out a dubbing process for dubbing coded data including at least one of digital video information and digital audio information, at a second average transfer rate which is higher than a first average transfer rate as an average transfer rate required for normal playback of the information, comprising:
- a data writing unit for writing the coded data read at the second average transfer rate from a first storage medium containing the coded data, onto a second storage medium at the second average transfer rate;
- and
- a decoder unit for carrying out a decoding process for decoding at least part of the coded data read at the second average transfer rate from the first storage medium as well as repeatedly carrying out a data output process for discretely outputting decoded data obtained by the decoding process so that the output of the decoded data is not interrupted.
A signal processing apparatus which carries out a signal processing for dubbing coded data including at least one of digital video information and digital audio information, at a second average transfer rate which is higher than a first average transfer rate as an average transfer rate required for normal playback of the information, comprising:
- a data reading unit for reading the coded data from a first storage medium containing the coded data at the second average transfer rate;
- and
- a data output unit for carrying out a decoding process for decoding at least part of the coded data read from the first storage medium at the second average transfer rate and repeatedly carrying out a data output process for discretely outputting decoded data obtained by the decoding process so that the output of the decoded data is not interrupted.
Dependencies are inferred from the claim text.