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公开(公告)号：DE69228437D1
公开(公告)日：1999-03-25
申请号：DE69228437
申请日：1992-12-04
Applicant: SONY CORP
Inventor： HONDA TAKASHI , SATO DAI
Abstract: In an apparatus for processing an input video signal that includes a chrominance signal and a luminance signal, where the luminance signal is frequency-modulated and the chrominance signal is subsampled, preferably by field-offset subsampling, the subsampled chrominance signal is frequency-converted (75) to a lower frequency band than the frequency band of the frequency-modulated luminance signal. The frequency-modulated luminance signal and the frequency-converted subsampled chrominance signal are then combined (10) and the resulting combined signal is recorded on a recording medium such as a magnetic tape T. During reproduction of the recorded signal, interpolation (78) among frames is used to reconstruct the chrominance signal. Recording of the frequency-converted subsampled chrominance signal allows for space-efficient recording of the video signal while providing a reproduced chrominance signal that has a relatively wide bandwidth, thereby permitting improved colour reproducibility.
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公开(公告)号：DE69228437T2
公开(公告)日：1999-09-02
申请号：DE69228437
申请日：1992-12-04
Applicant: SONY CORP
Inventor： HONDA TAKASHI , SATO DAI
Abstract: In an apparatus for processing an input video signal that includes a chrominance signal and a luminance signal, where the luminance signal is frequency-modulated and the chrominance signal is subsampled, preferably by field-offset subsampling, the subsampled chrominance signal is frequency-converted (75) to a lower frequency band than the frequency band of the frequency-modulated luminance signal. The frequency-modulated luminance signal and the frequency-converted subsampled chrominance signal are then combined (10) and the resulting combined signal is recorded on a recording medium such as a magnetic tape T. During reproduction of the recorded signal, interpolation (78) among frames is used to reconstruct the chrominance signal. Recording of the frequency-converted subsampled chrominance signal allows for space-efficient recording of the video signal while providing a reproduced chrominance signal that has a relatively wide bandwidth, thereby permitting improved colour reproducibility.
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3.发明专利
公开(公告)号：CA2084797A1
公开(公告)日：1993-06-17
申请号：CA2084797
申请日：1992-12-08
Applicant: SONY CORP
Inventor： HONDA TAKASHI , SATO DAI
Abstract: PATENT 390100-2672 In an apparatus for processing an input video signal that includes a chrominance signal and a luminance signal, the luminance signal is frequency-modulated and the chrominance signal is subsampled, preferably by field-offset subsampling, whereupon, the subsampled chrominance signal is frequencyconverted to a lower frequency band than the frequency band of the frequency-modulated luminance signal. The frequencymodulated luminance signal and the frequency-converted subsampled chrominance signal are then combined and the resulting combined signal is recorded on a recording medium such as a magnetic tape. During reproduction of the recorded signal, interpolation among frames is used to reconstruct the chrominance signal. Recording of the frequency-converted subsampled chrominance signal allows for space-efficient recording of the video signal while providing a reproduced chrominance signal that has a relatively wide bandwidth, thereby permitting improved color reproducibility. NL9:2672.APP
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