US4878128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video signal reproducing apparatus
Assignee: Canon Inc
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Filing: 1987-05-05
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Granted: 1989-10-31
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Expires: 2007-05-05
Abstract
Abstract A video signal reproducing apparatus having a video camera part which produces a video signal by picking up an image of an object and is arranged in one unified body at least with a reproducing part which reproduces a video signal from a reducing medium is arranged to selectively supply the video signal obtained by picking up the object's image or the reproduced video signal obtained from the recording medium to one and the same signal processing means. The disclosed arrangement not only permits simplification of the apparatus but also enables the apparatus to reproduce a high quality video signal.
Inventors
- 👤 Hiroto Yasumura
- 👤 Masahide Hirasawa
- 👤 Minoru Noji
- 👤 Susumu Kozuki
- 👤 Koji Takahashi
- 👤 Katsuji Yoshimura
- 👤 Tomohiko Sasatani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:21
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/79; H04N5/00; H04N5/76; H04N5/765; H04N5/77; H04N5/772; H04N9/7908; H04N9/80; H04N9/82; H04N9/83; H04N9/87; H04N9/88; Y; Y10; Y10S; Y10S358/00; Y10S358/906
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
135 words
A color video signal reproducing apparatus for producing a color video signal, comprising: (a) image sensing means arranged to pick up an image of an object and to generate, according to information on the image of said object, a first color video signal which includes a first base band color information signal; (b) reproducing means for reproducing a second color video signal from a record bearing medium; (c) color information signal forming means for forming a second base band color information signal from said second color video signal reproduced by said reproducing means; (d) white balance control means for controlling the while balance of said first or second base band color information signal; and (e) supply means for selectively supplying said first or second base band color information signal to said white balance control means.
Claim 2
Dependent Claim
135 words
A color video signal reproducing apparatus for producing a color video signal, comprising: (a) image sensing means arranged to pick up an image of an object and to generate, according to information on the image of said object, a first color video signal which includes a first base band color information signal; (b) reproducing means for reproducing a second color video signal from a record bearing medium; (c) color information signal forming means for forming a second base band color information signal from said second color video signal reproduced by said reproducing means; (d) white balance control means for controlling the while balance of said first or second base band color information signal; and (e) supply means for selectively supplying said first or second base band color information signal to said white balance control means.
Claim 3
Dependent Claim
51 words
An apparatus according to claim 1, further comprising recording means which is arranged to form a recording signal by using said first color video signal including said first base band color information signal controlled by said white balance control means and to record said recording signal on said record bearing medium.
Claim 4
Dependent Claim
50 words
An apparatus according to claim 2, wherein said supply means is arranged to supply said white balance control means with said first base band color information signal while said recording means is in operation and with said second base band color information signal while said reproducing means is in operation.
Claim 5
Dependent Claim
62 words
An apparatus according to claim 1 wherein said supply means is arranged to supply said white balance control means with said first base band color information signal while said first video signal is being generated by said image sensing means and with said second base band color information signal while said second color video signal is being reproduced by said reproducing means.
Claim 6
Dependent Claim
64 words
An apparatus according to claim 1, wherein said first base band color information signal includes a first color difference signal; said second base band color information signal includes a second color difference signal; and said white balance control means includes a conversion circuit which converts a white balance controlled color difference signal into a carrier chrominance signal and to produce said carrier chrominance signal.
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) | 1992-10-30 | 1993-05-01 | 1993-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-30 | 1997-05-01 | 1997-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-30 | 2001-05-01 | 2001-10-31 | $7700.00 | Window Closed / Lapsed |