US5257141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recording a digital video signal
Assignee: Panasonic Holdings Corp
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Filing: 1991-07-26
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Granted: 1993-10-26
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Expires: 2011-07-26
Abstract
Abstract For recording video signals of different TV systems in the same track format, effective pixels corresponding to the data of one frame of each TV system video signal are divided into segments of a multiple of 27 and a one frame data component of each segment is compressed to an equal size. Accordingly, the video signal is recorded in the format of 27 segments per track.
Inventors
- 👤 Chiyoko Matsumi
- 👤 Tatsuro Juri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:47
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/79; H04N9/7921; H04N9/7925; H04N9/80; H04N9/804; H04N9/8042; H04N9/8047
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
91 words
A method of recording digital video signals of two or more of different TV systems in the common format onto recording tracks of a recording medium, comprising the steps of: for recording the data of one frame of an input digital video signal, dividing effective pixels corresponding to the one frame data into segments of a multiple of 27; compressing the data rate of a digital video signal component of each segment to a given range; and recording the compressed digital video signal in the format of 27 segments per track.
Claim 2
Independent Claim
91 words
A method of recording digital video signals of two or more of different TV systems in the common format onto recording tracks of a recording medium, comprising the steps of: for recording the data of one frame of an input digital video signal, dividing effective pixels corresponding to the one frame data into segments of a multiple of 27; compressing the data rate of a digital video signal component of each segment to a given range; and recording the compressed digital video signal in the format of 27 segments per track.
Claim 3
Dependent Claim
76 words
A method of recording a digital video signal according to claim 1, wherein while a luminance signal component of the one frame data of a TV system to be recorded is allocated to an array of effective pixels having 720 pixels in each horizontal row and 480 pixels in each vertical column, the one frame data is divided into 27×10 segments and thus, recorded onto 10 tracks, 27 segments in each track, of the recording medium.
Claim 4
Dependent Claim
76 words
A method of recording a digital video signal according to claim 1, wherein while a luminance signal component of the one frame data of a TV system to be recorded is allocated to an array of effective pixels having 720 pixels in each horizontal row and 576 pixels in each vertical column, the one frame data is divided into 27×12 segments and thus, recorded onto 12 tracks, 27 segments in each track, of the recording medium.
Claim 5
Dependent Claim
76 words
A method of recording a digital video signal according to claim 1, wherein while a luminance signal component of the one frame data of a TV system to be recorded is allocated to an array of effective pixels having 384 pixels in each horizontal row and 1056 pixels in each vertical column, the one frame data is divided into 27×20 segments and thus, recorded onto 20 tracks, 27 segments in each track, of the recording medium.
Claim 6
Dependent Claim
76 words
A method of recording a digital video signal according to claim 1, wherein while a luminance signal component of the one frame data of a TV system to be recorded is allocated to an array of effective pixels having 720 pixels in each horizontal row and 576 pixels in each vertical column, the one frame data is divided into 27×24 segments and thus, recorded onto 24 tracks, 27 segments in each track, of the recording medium.
Claim 7
Dependent Claim
76 words
A method of recording a digital video signal according to claim 1, wherein while a luminance signal component of the one frame data of a TV system to be recorded is allocated to an array of effective pixels having 1152 pixels in each horizontal row and 1080 pixels in each vertical column, the one frame data is divided into 27×20 segments and thus, recorded onto 20 tracks, 27 segments in each track, of the recording medium.
Claim 8
Dependent Claim
76 words
A method of recording a digital video signal according to claim 1, wherein while a luminance signal component of the one frame data of a TV system to be recorded is allocated to an array of effective pixels having 1152 pixels in each horizontal row and 1152 pixels in each vertical column, the one frame data is divided into 27×24 segments and thus, recorded onto 24 tracks, 27 segments in each track, of the recording medium.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-10-25 | 1997-04-26 | 1997-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-25 | 2001-04-26 | 2001-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-25 | 2005-04-26 | 2005-10-26 | $7700.00 | Window Closed / Lapsed |