US5493418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing and printing video images and scanned original image with controlled aspect ratios of video signals
Assignee: Canon Inc
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Filing: 1995-01-30
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Granted: 1996-02-20
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Expires: 2015-01-30
Abstract
Abstract An image processing apparatus can deal with a plurality of kinds of video signals. The apparatus includes a circuit for generating a signal indicating the kind of an input video signal, and magnification varying circuit for varying the aspect ratio of an image of the input video signal in accordance with a result of discrimination by the signal generation circuit. The aspect ratio of a pixel (picture element) is automatically corrected in accordance with the input video signal by the above-described circuits. Accordingly, it becomes unnecessary to manually set the aspect ratio of a pixel in accordance with the kind of the input video signal. Hence, operation is greatly simplified.
Inventors
- 👤 Koji Takahashi
- 👤 Masahiko Enari
- 👤 Yushi Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:32
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/333; H04N1/33307; H04N1/33315; H04N1/00127; H04N1/00281; H04N1/00283; H04N1/40; H04N1/40068
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
141 words
An image processing apparatus for converting image data between a first digital image signal and a second digital image signal, a vertical-to-horizontal ratio of each pixel of the first digital image signal being different from a vertical-to-horizontal ratio of each pixel of the second digital image signal, said apparatus comprising: a) input means for inputting the first digital image signal; b) generating means for generating a discrimination signal capable of discriminating the vertical-to-horizontal ratio of each pixel of the first digital image signal input by said input means; c) conversion means for forming the second digital image signal by converting the vertical-to-horizontal ratio of each pixel of the first digital image signal input by said input means into the vertical-to-horizontal ratio of each pixel of the second digital image signal in accordance with the discrimination signal generated by said generating means.
Claim 2
Dependent Claim
141 words
An image processing apparatus for converting image data between a first digital image signal and a second digital image signal, a vertical-to-horizontal ratio of each pixel of the first digital image signal being different from a vertical-to-horizontal ratio of each pixel of the second digital image signal, said apparatus comprising: a) input means for inputting the first digital image signal; b) generating means for generating a discrimination signal capable of discriminating the vertical-to-horizontal ratio of each pixel of the first digital image signal input by said input means; c) conversion means for forming the second digital image signal by converting the vertical-to-horizontal ratio of each pixel of the first digital image signal input by said input means into the vertical-to-horizontal ratio of each pixel of the second digital image signal in accordance with the discrimination signal generated by said generating means.
Claim 3
Dependent Claim
19 words
An image processing apparatus according to claim 1, wherein the first digital image signal conforms to a broadcast standard.
Claim 4
Dependent Claim
25 words
An image processing apparatus according to claim 2, wherein the discrimination signal indicates a kind of the broadcast standard of the first digital image signal.
Claim 5
Dependent Claim
22 words
An image processing apparatus according to claim 3, wherein said input means inputs image signals conforming to plural kinds of broadcast standards.
Claim 6
Dependent Claim
27 words
An image processing apparatus according to claim 1, further comprising output means for outputting the second digital image signal obtained by said conversion means to a printer.
Claim 7
Dependent Claim
11 words
An image processing apparatus according to claim 5, including said printer.
Claim 8
Dependent Claim
47 words
An image processing apparatus according to claim 1, wherein said conversion means includes a memory for storing the first digital image signal input by said input means and converts the first digital image signal into the second digital image signal by an address control of said memory.
Claim 9
Dependent Claim
91 words
An image processing apparatus, comprising: a) input means for inputting a first image signal conforming to a broadcast standard; b) generating means for generating a discrimination signal indicating a kind of the broadcast standard for the first image signal input by said input means; and c) conversion means for converting the first image signal input by said input means into a second image signal so as to form a predetermined aspect ratio of each pixel of the first image signal in accordance with the discrimination signal generated by said generating means.
Claim 10
Dependent Claim
91 words
An image processing apparatus, comprising: a) input means for inputting a first image signal conforming to a broadcast standard; b) generating means for generating a discrimination signal indicating a kind of the broadcast standard for the first image signal input by said input means; and c) conversion means for converting the first image signal input by said input means into a second image signal so as to form a predetermined aspect ratio of each pixel of the first image signal in accordance with the discrimination signal generated by said generating means.
Claim 11
Dependent Claim
40 words
An image processing apparatus according to claim 8, wherein the first image signal can be any signal selected from a group consisting of an image signal conforming to a NTSC standard, and an image signal conforming to a PAL standard.
Claim 12
Dependent Claim
26 words
An image processing apparatus according to claim 8, further comprising output means for outputting the second image signal obtained by said conversion means to a printer.
Claim 13
Dependent Claim
11 words
An image processing apparatus according to claim 10, including said printer.
Claim 14
Dependent Claim
22 words
An image processing apparatus according to claim 8, wherein said input means inputs image signals conforming to plural kinds of broadcast standards.
Claim 15
Dependent Claim
27 words
An image processing apparatus according to claim 12, further comprising selection means for selecting any one of image signals conforming to the plural kinds of broadcast standards.
Claim 16
Dependent Claim
15 words
An image processing apparatus according to claim 13, wherein said selection means is manually operated.
Claim 17
Dependent Claim
82 words
An image processing apparatus, comprising: a) selection means for selecting either an image signal from an original scanner or an image signal conforming to a broadcast standard; and b) conversion means for converting the image signal selected by said selection means into a second image signal so as to form a predetermined aspect ratio of each pixel of the selected image signal, said conversion means including control means for controlling a conversion in accordance with a selection performed by said selection means.
Claim 18
Dependent Claim
82 words
An image processing apparatus, comprising: a) selection means for selecting either an image signal from an original scanner or an image signal conforming to a broadcast standard; and b) conversion means for converting the image signal selected by said selection means into a second image signal so as to form a predetermined aspect ratio of each pixel of the selected image signal, said conversion means including control means for controlling a conversion in accordance with a selection performed by said selection means.
Claim 19
Dependent Claim
47 words
An image processing apparatus according to claim 15, further comprising generating means for generating a discrimination signal indicating a kind of an image signal conforming to a broadcast standard, wherein said control means controls the conversion in accordance with the discrimination signal generated by said generation means.
Claim 20
Dependent Claim
23 words
An image processing apparatus according to claim 15, further comprising magnification means for magnifying the second image signal obtained by said conversion means.
Claim 21
Dependent Claim
25 words
An image processing apparatus according to claim 17, further comprising output means for outputting the image signal magnified by said magnification means to a printer.
Claim 22
Dependent Claim
11 words
An image processing apparatus according to claim 18, including said printer.
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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) | 1999-02-19 | 1999-08-21 | 2000-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-19 | 2003-08-21 | 2004-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-19 | 2007-08-21 | 2008-02-20 | $7700.00 | Window Closed / Lapsed |