Patent US5223942A successfully refreshed from Google Patents.
US5223942A
Expired / Lapsed
US
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Image processing apparatus
Assignee: Canon Inc
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Filing: 1990-08-31
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Granted: 1993-06-29
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Expires: 2010-08-31
Abstract
Abstract An image processing apparatus includes a recording process circuit for applying a recording process based on given luminance data and color data, a reproducing process circuit for applying a reproducing process on the given luminance data and color data, and an image memory used in common for the recording process circuit and the reproducing process circuit. The state of write-in into or read-out from the image memory on at least one of the luminance data and the color data is varied according to the state of operation of the recording process circuit and the reproducing process circuit. A processing time difference between a time of processing of the luminance data and a time of processing of the color data is compensated for by the recording process circuit and the reproducing process circuit.
Inventors
- 👤 Yuji Sakaegi
- 👤 Makoto Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:49
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/64; H04N1/646; H04N9/00; H04N9/79; H04N9/87; H04N9/877; H04N5/00; H04N5/76; H04N5/78; H04N5/781
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
An image processing apparatus comprising: a) a recording process circuit for applying a recording process based on given luminance data and color data; b) a reproducing process circuit for applying a reproducing process on said given luminance data and color data; c) an image memory used in common for said recording process circuit and said reproducing process circuit; and d) means for varying the state of write-in into or read-out from said image memory on at least one of said luminance data and said color data, according to the state of operation of said recording process circuit and said reproducing process circuit, wherein said means for varying compensates a processing time difference between a time of processing of the luminance data and a time of processing of the color data by said recording process circuit and said reproducing process circuit.
Claim 2
Dependent Claim
140 words
An image processing apparatus comprising: a) a recording process circuit for applying a recording process based on given luminance data and color data; b) a reproducing process circuit for applying a reproducing process on said given luminance data and color data; c) an image memory used in common for said recording process circuit and said reproducing process circuit; and d) means for varying the state of write-in into or read-out from said image memory on at least one of said luminance data and said color data, according to the state of operation of said recording process circuit and said reproducing process circuit, wherein said means for varying compensates a processing time difference between a time of processing of the luminance data and a time of processing of the color data by said recording process circuit and said reproducing process circuit.
Claim 3
Dependent Claim
26 words
An image processing apparatus according to claim 1, wherein said recording process circuit includes means for low-pass filtering of said luminance data and said color data.
Claim 4
Dependent Claim
25 words
An image processing apparatus according to claim 1, wherein said reproducing process circuit includes means for demodulation of said luminance data and said color data.
Claim 5
Dependent Claim
88 words
An image processing apparatus comprising: a) process means for processing given luminance data and color data separately in respectively different process modes; b) an image memory serially connected to said process means; and c) means for controlling the state of write-in or read-out of said image memory for compensating a difference in delay time of said luminance data and said color data in said process means, wherein said means for controlling varies the state of the write-in or read-out according to the process mode of said process means.
Claim 6
Dependent Claim
88 words
An image processing apparatus comprising: a) process means for processing given luminance data and color data separately in respectively different process modes; b) an image memory serially connected to said process means; and c) means for controlling the state of write-in or read-out of said image memory for compensating a difference in delay time of said luminance data and said color data in said process means, wherein said means for controlling varies the state of the write-in or read-out according to the process mode of said process means.
Claim 7
Dependent Claim
16 words
An image processing apparatus according to claim 4, wherein said process means includes a demodulation process.
Claim 8
Dependent Claim
16 words
An image processing apparatus according to claim 4, wherein said processing means includes a filtering process.
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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) | 1996-06-28 | 1996-12-28 | 1997-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-28 | 2000-12-28 | 2001-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-28 | 2004-12-28 | 2005-06-29 | $7700.00 | Window Closed / Lapsed |