Patent US5757965A successfully refreshed from Google Patents.
US5757965A
Expired / Lapsed
US
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Image processing apparatus for performing compression of image data based on serially input effective size data
Assignee: Canon Inc
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Filing: 1994-10-04
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Granted: 1998-05-26
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Expires: 2014-10-04
Abstract
Abstract An image processing apparatus discriminates an effective size of input image data, compresses the input image data, and controls the compression in accordance with the discriminated effective size.
Inventors
- 👤 Joji Ohki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:04
CPC Classifications
H; H04; H04N; H04N19/00; H04N1/00; H04N1/41; H04N1/32; H04N1/333; H04N1/33307; H04N1/33323; H04N19/10; H04N19/102; H04N19/124; H04N19/126; H04N19/42; H04N19/423; H04N19/13; H04N19/60; H04N19/90; H04N19/91; H04N2201/00; H04N2201/32; H04N2201/333; H04N2201/33307; H04N2201/33314; H04N2201/33321; H04N2201/33342; H04N2201/33357
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
100 words
An image processing apparatus which receives compressed image data and can store the compressed image data in storing means, comprising: discriminating means for discriminating a data size of the compressed image data before said storing means stores the compressed image data; means for expanding the received compressed image data when it is determined that the data size of the compressed image data discriminated by said discriminating means is larger than an effective size of said storing means; and compressing means for recompressing the image data expanded by said expanding means so that it can be stored in said storing means.
Claim 2
Dependent Claim
100 words
An image processing apparatus which receives compressed image data and can store the compressed image data in storing means, comprising: discriminating means for discriminating a data size of the compressed image data before said storing means stores the compressed image data; means for expanding the received compressed image data when it is determined that the data size of the compressed image data discriminated by said discriminating means is larger than an effective size of said storing means; and compressing means for recompressing the image data expanded by said expanding means so that it can be stored in said storing means.
Claim 3
Dependent Claim
22 words
An apparatus according to claim 1, further comprising means for supplying the compressed data stored in said storing means to a printer.
Claim 4
Dependent Claim
35 words
An apparatus according to claim 2, wherein recompression is achieved by said compressing means by controlling compressing state by means of controlling a quantization value to quantize the data after completion of an orthogonal transformation.
Claim 5
Dependent Claim
105 words
An image processing system comprising; means for inputting image information; first compressing means for compressing image data corresponding to the image information input by said inputting means; discriminating means for discriminating a data size of the compressed image data produced by said first compressing means; means for expanding the received compressed image data when it is determined that the data size of the compressed image data discriminated by said discriminating means is larger than an effective size of a storing means; and second compressing means for compressing the image data expanded by said expanding means so that it can be stored in the storing means.
Claim 6
Dependent Claim
105 words
An image processing system comprising; means for inputting image information; first compressing means for compressing image data corresponding to the image information input by said inputting means; discriminating means for discriminating a data size of the compressed image data produced by said first compressing means; means for expanding the received compressed image data when it is determined that the data size of the compressed image data discriminated by said discriminating means is larger than an effective size of a storing means; and second compressing means for compressing the image data expanded by said expanding means so that it can be stored in the storing means.
Claim 7
Dependent Claim
22 words
A system according to claim 4, further comprising a second expanding means for expanding compressed image data stored in the storing means.
Claim 8
Dependent Claim
25 words
A system according to claim 5, further comprising means for supplying image data expanded by said said second expanding means to an image forming device.
Claim 9
Dependent Claim
14 words
A system according to claim 6, wherein the image forming device is a printer.
Claim 10
Dependent Claim
16 words
A system according to claim 7, wherein the printer is a printer which discharges a liquid.
Claim 11
Dependent Claim
21 words
A system according to claim 8, wherein the printer discharges the liquid by causing a film boiling due to thermal energy.
Claim 12
Dependent Claim
16 words
A system according to claim 4, wherein the compressed image data is compressed multivalue image data.
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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) | 2001-05-25 | 2001-11-24 | 2002-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-25 | 2005-11-24 | 2006-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-25 | 2009-11-24 | 2010-05-26 | $7700.00 | Window Closed / Lapsed |