Information processing apparatus and method, recording medium, and program
AssigneeSony Corporation
InventorsTetsujiro Kondo, Sakon Yamamoto
Life of this patent
Estimating the term…
Abstract
In an information processing apparatus, for example, a video tape recorder, a recording section records an input signal on a recording medium. Substantially at the same time, a playback section plays back the input signal from the recording medium to output a playback signal. A learning section generates prediction coefficients based on characteristics of the playback signal and the original input signal. Then, when the playback section plays back the input signal recorded on the recording medium to output the playback signal, a classification-adaptation section corrects the playback signal based on the prediction coefficients generated by the learning section, outputting a corrected playback signal.
Claims20
An information processing apparatus for correcting a playing back signal comprising:
- learning means for generating, based on a first signal and a second signal, coefficients for correcting the second signal;
- and
- index attaching means for attaching an index being generated based on the first signal and being used for detecting coefficients for correcting the second signal during playback to the coefficients generated by the learning means and attaching the index to the first signal associated with the coefficients,
- wherein the first signal is an original signal prior to being recorded on a recording medium, and the second signal is obtained by playing back the first signal for a first time after the first signal is recorded on the recording medium, and
- wherein correction of the second signal based on the generated coefficients corrects the second signal into the original signal so that degradation of the playing back signal is reduced.
An information processing method for correcting a playing back signal, comprising:
- a learning step of generating, based on a first signal and a second signal, coefficients for correcting the second signal;
- and
- an index attaching step of attaching an index being generated based on the first signal and being used for detecting coefficients for correcting the second signal during playback to the coefficients generated in the learning step and attaching the index to the first signal associated with the coefficients,
- wherein the first signal is an original signal prior to being recorded on a recording medium, and the second signal is obtained by playing back the first signal for a first time after the first signal is recorded on the recording medium, and
- wherein correction of the second signal based on the generated coefficients corrects the second signal into the original signal so that degradation of the playing back signal is reduced.
A recording medium having recorded thereon a program for a computer that when executed by the computer controls an information processing apparatus, the program comprising:
- a learning step of generating, based on a first signal and a second signal, coefficients for correcting the second signal;
- and
- an index attaching step for attaching an index being generated based on the first signal and being used for detecting coefficients for correcting the second signal during playback to the coefficients generated in advance and attaching the index to the first signal associated with the coefficients,
- wherein the first signal is an original signal prior to being recorded on a recording medium, and the second signal is obtained by playing back the first signal for a first time after the first signal is recorded on the recording medium, and
- wherein correction of the second signal based on the generated coefficients corrects the second signal into the original signal so that degradation of the playing back signal is reduced.
An information processing apparatus for correcting a playing back signal comprising:
- correcting means for detecting coefficients generated in advance based on a first signal and a second signal and correcting the second signal based on the coefficients detected, when the first signal is played back to output the second signal after the first signal has been recorded on a recording medium;
- and
- index attaching means for attaching an index being generated based on the first signal and being used for detecting coefficients for correcting the second signal during playback to the coefficients generated in advance and attaching the index to the first signal associated with the coefficients,
- wherein the first signal is an original signal prior to being recorded on a recording medium, and the second signal is obtained by playing back the first signal for a first time after the first signal is recorded on the recording medium, and
- wherein correction of the second signal based on the generated coefficients corrects the second signal into the original signal so that degradation of the playing back signal is reduced.
An information processing method for correcting a playing back signal, comprising:
- a correcting step of detecting coefficients generated in advance based on a first and a second signal and correcting the second signal based on the coefficients detected, when the first signal is played back to output the second signal after the first signal has been recorded on a recording medium;
- and
- an index attaching step for attaching an index being generated based on the first signal and being used for detecting coefficients for correcting the second signal during playback to the coefficients generated in advance and attaching the index to the first signal associated with the coefficients,
- wherein the first signal is an original signal prior to being recorded on a recording medium, and the second signal is obtained by playing back the first signal for a first time after the first signal is recorded on the recording medium, and
- wherein correction of the second signal based on the generated coefficients corrects the second signal into the original signal so that degradation of the playing back signal is reduced.
A recording medium having recorded thereon a program for a computer that when executed by the computer controls an information processing apparatus, the program comprising:
- a correcting step of detecting coefficients generated in advance based on a first and a second signal and correcting the second signal based on the coefficients detected, when the first signal is played back to output the second signal after the first signal has been recorded on a recording medium;
- and
- an index attaching step for attaching an index being generated based on the first signal and being used for detecting coefficients for correcting the second signal during playback to the coefficients generated in advance and attaching the index to the first signal associated with the coefficients,
- wherein the first signal is an original signal prior to being recorded on a recording medium, and the second signal is obtained by playing back the first signal for a first time after the first signal is recorded on the recording medium, and
- wherein correction of the second signal based on the generated coefficients corrects the second signal into the original signal so that degradation of the playing back signal is reduced.
Dependencies are inferred from the claim text.