US3702896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video information recording media and apparatus for reproducing video information
Assignee: Mitsubishi Electric Corp
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Filing: 1970-10-20
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Granted: 1972-11-14
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Expires: 1990-10-20
Abstract
Abstract A video information recording media and apparatus for reproducing video information recorded on the media is provided. A luminance signal Y and a color signal (R-Y) is recorded on one side of the recording media and a luminance signal Y and a color signal (B-Y) is recorded on an adjacent side of the recording media. The color video information upon the recording media is reproduced by the use of a flying spot scanner which horizontally scans the recording media and alternately reads the Y and (R-Y) signal and the Y and (B-Y) signal and by the use of a delay is able to compose the desired information therefrom.
Inventors
- 👤 Koichiro Kurahashi
- 👤 Masanori Nakada
- 👤 Masaaki Abe
- 👤 Koichi Nishimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:41
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/84; H04N5/843
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
256 words
An apparatus for reproducing video information which utilizes a recording media wherein video information thereon is divided into a plurality of horizontal areas, said horizontal areas being sequentially recorded in the direction of movement of said recording media which comprises: a first horizontal section and a second horizontal section for recording each of said plurality of horizontal areas on said recording media, said first horizontal section and said second horizontal section being adjacent; a luminance signal and a first color signal of said video information being recorded on said first horizontal section and a luminance signal and a second color signal of said video information being recorded on said second horizontal section; means for providing a horizontal scanning signal; means for reading said signals recorded on said first horizontal section and said second horizontal section by scanning in a direction transverse to that of the recording media to produce a composite signal; means for deriving said first and second color signals from said composite signals; means for delaying each of said color signals for a period equal to the time required to scan a horizontal section; first and second demodulator circuits; switching means for alternately applying delayed and non-delayed first color signals to said first demodulator during a first period of time, and for alternately applying delayed and nondelayed second color signals to said second demodulator during a second period of time; and, means responsive to said horizontal scanning signal and to said detected video information for producing a switching signal at the horizontal scanning frequency.
Claim 2
Independent Claim
256 words
An apparatus for reproducing video information which utilizes a recording media wherein video information thereon is divided into a plurality of horizontal areas, said horizontal areas being sequentially recorded in the direction of movement of said recording media which comprises: a first horizontal section and a second horizontal section for recording each of said plurality of horizontal areas on said recording media, said first horizontal section and said second horizontal section being adjacent; a luminance signal and a first color signal of said video information being recorded on said first horizontal section and a luminance signal and a second color signal of said video information being recorded on said second horizontal section; means for providing a horizontal scanning signal; means for reading said signals recorded on said first horizontal section and said second horizontal section by scanning in a direction transverse to that of the recording media to produce a composite signal; means for deriving said first and second color signals from said composite signals; means for delaying each of said color signals for a period equal to the time required to scan a horizontal section; first and second demodulator circuits; switching means for alternately applying delayed and non-delayed first color signals to said first demodulator during a first period of time, and for alternately applying delayed and nondelayed second color signals to said second demodulator during a second period of time; and, means responsive to said horizontal scanning signal and to said detected video information for producing a switching signal at the horizontal scanning frequency.
Claim 3
Dependent Claim
83 words
An apparatus for reproducing video information according to claim 1, wherein said means for delaying each of said color signals includes switching the signals supplied to said first and said second color demodulation circuits during said first and said second periods in accordance with means for detecting a synchronizing signal which is recorded between the first horizontal section and the second horizontal section of said recording media and between the side edge of said recording media and said first or second horizontal sections.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |