US4965662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video printer for making video image hard copies
Assignee: Fujifilm Holdings Corp
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Filing: 1988-07-29
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Granted: 1990-10-23
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Expires: 2008-07-29
Abstract
Abstract A video signal from an input unit is supplied to first and second low-pass filters. A selector picks up a video signal which has passed through the first low-pass filter if a single frame image is to be printed, and picks up a video signal which has passed through the second low-pass filter if a multifreeze image is to be printed. The picked-up video signal is sampled and quantized by an A/D converter and stored in a first memory. The video signal in the first memory is read out to print a signal frame image. To print a multifreeze image, the video signal stored in the first memory is thinned to reduce the size of an image and thereafter is stored in a second memory having a larger capacity than that of the first memory. A plurality of frames are inlaid within one frame at the second memory. Thereafter, the video signal in the second memory is read out to print a multifreeze image.
Inventors
- 👤 Kazuo Shiota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:54
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; H04N1/393; H04N1/3935; G; G03; G03B; G03B27/00; G03B27/72; G03B27/725; H04N1/3872; H04N1/3873; H04N1/3875; G03B2227/00; G03B2227/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
208 words
A video printer having a printing unit for obtaining a hard copy of a video image, said video printer comprising: a first memory for storing one frame of an inputted video signal; a second memory having a storage capacity X times as large as said first memory in the horizontal scan direction and Y times as large as said first memory in the vertical scan direction, where X and Y are positive integers: means for making a multifreeze image, comprising M sub-frames in the horizontal scan direction and N sub-frames in the vertical direction, said sub-frames being inlaid within a single frame, by reading the video signal stored in said first memory while thinning said video signal by a first factor of X/M in the horizontal scan direction and by a second factor of Y/N in the vertical scan direction to reduce the size of said video image, and by writing said thinned video signal in a predetermined area of said second memory: and means for reading a video signal from said first memory when a hard copy of one frame video image is to be made, and reading a video image from said second memory when a hard copy of a multifreeze image is to be made.
Claim 2
Dependent Claim
208 words
A video printer having a printing unit for obtaining a hard copy of a video image, said video printer comprising: a first memory for storing one frame of an inputted video signal; a second memory having a storage capacity X times as large as said first memory in the horizontal scan direction and Y times as large as said first memory in the vertical scan direction, where X and Y are positive integers: means for making a multifreeze image, comprising M sub-frames in the horizontal scan direction and N sub-frames in the vertical direction, said sub-frames being inlaid within a single frame, by reading the video signal stored in said first memory while thinning said video signal by a first factor of X/M in the horizontal scan direction and by a second factor of Y/N in the vertical scan direction to reduce the size of said video image, and by writing said thinned video signal in a predetermined area of said second memory: and means for reading a video signal from said first memory when a hard copy of one frame video image is to be made, and reading a video image from said second memory when a hard copy of a multifreeze image is to be made.
Claim 3
Dependent Claim
24 words
A video printer according to claim 1, wherein the data in said second memory is cleared before a multifreeze image forming operation is initiated.
Claim 4
Dependent Claim
26 words
A video printer according to claim 2, wherein said first and second memories each comprise three memory areas for respectively storing three primary color video signals.
Claim 5
Dependent Claim
19 words
A video printer according to claim 3, wherein M and N are 4, and X and Y are 2.
Claim 6
Dependent Claim
152 words
A video printer according to claim 1, further comprising: a first low-pass filter, having a first bandwidth approximately equal to that of an inputted video signal, for passing the low frequency component of said inputted video signal as a first output; a second low-pass filter, having a second bandwidth narrower than that of said first low-pass filter, for passing the low frequency component of said inputted video signal as a second output; means for selectively picking up the first output from said first low-pass filter when a hard copy of one frame of a video signal is to be made, and picking up the second output from said second low-pass filter when a hard copy of a multifreeze image is to be made; and means, connected between said selective pick-up means and said first memory, for sampling said one of said first and second outputs picked up by said selective pick-up means.
Claim 7
Dependent Claim
31 words
A video printer according to claim 5, wherein said second bandwidth of said second low pass filter is narrower than (fs×X)/(2×M), where fs is the sampling frequency of said sampling means.
Claim 8
Dependent Claim
49 words
A video printer according to claim 6, wherein said printing unit comprises: a monochrome CRT; three primary color filters disposed for selective insertion between said monochrome CRT and a photosensitive material; and an exposure lens for focusing a video image displayed on said monochrome CRT on said photosensitive material.
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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) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |