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US6667818B1
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Multiple-field sensor for scanning system
Assignee: 92104 LLC
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Filing: 2000-10-23
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Granted: 2003-12-23
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Expires: 2020-10-23
Abstract
Abstract A multiple-field sensor for a scanner suitable for scanning a document. The scanner includes a multiple-field sensor, an average accumulator, and a block of memory. The multiple-field sensor has a plurality of sensing lines for each color channel. Each sensing line picks up a portion of image signal from the document during scanning. The sensing lines scan the same portion of the document to produce corresponding image signals. The average accumulator averages the image signals obtained from the sensing lines of the same color channel to produce an average image signal. The block of memory is used as a storage area for image signals in general and the average image signal in particular.
Inventors
- 👤 Shih-Zheng Kuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:11
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/10; H04N1/1013; H04N1/19; H04N1/191; H04N1/192; H04N1/193; H04N1/46; H04N1/48; H04N1/486; H04N1/32; H04N1/32358
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
A scanner having multiple-field sensor for scanning a document, comprising: a multiple-field sensor having a plurality of sensing lines for each color channel, wherein each sensing line is able to obtain a corresponding image signal during scanning; an average accumulator for adding together and averaging image signals from all the sensing line that corresponds to the scanning an identical portion of the document, and outputting an average image signal; and a memory for storing the image signals obtained from the sensing lines and the average image signal.
Claim 2
Dependent Claim
87 words
A scanner having multiple-field sensor for scanning a document, comprising: a multiple-field sensor having a plurality of sensing lines for each color channel, wherein each sensing line is able to obtain a corresponding image signal during scanning; an average accumulator for adding together and averaging image signals from all the sensing line that corresponds to the scanning an identical portion of the document, and outputting an average image signal; and a memory for storing the image signals obtained from the sensing lines and the average image signal.
Claim 3
Dependent Claim
21 words
The scanner of claim 1 , wherein the scanner further includes a memory read/write address controller for controlling memory accessing addresses.
Claim 4
Dependent Claim
43 words
The scanner of claim 1 , wherein the average accumulator further includes an adder and a divider, the adder is used for accumulating image signals and the divider is used for averaging the sum of image signals to produce an average image signal.
Claim 5
Dependent Claim
70 words
An image scanning method that utilizes a multiple-field sensor having a plurality of sensing lines for each color channel and with each sensing line capable of scanning a scan document, comprising the steps of: sequentially scanning an identical portion of the scan document using the sensing lines to obtain a plurality of corresponding image signals; averaging the image signals to produce an average image signal; and outputting the image signal.
Claim 6
Dependent Claim
70 words
An image scanning method that utilizes a multiple-field sensor having a plurality of sensing lines for each color channel and with each sensing line capable of scanning a scan document, comprising the steps of: sequentially scanning an identical portion of the scan document using the sensing lines to obtain a plurality of corresponding image signals; averaging the image signals to produce an average image signal; and outputting the image signal.
Claim 7
Dependent Claim
41 words
The method of claim 4 , wherein the step of averaging the image signals includes the substeps of: storing each image signal; summing the image signals cumulatively; and averaging the sum of the image signals to produce an average image signal.
Claim 8
Dependent Claim
18 words
The method of claim 4 , wherein the averaging the image signals is executed in a pipeline mode.
Claim 9
Dependent Claim
78 words
An image scanning method that utilizes a multiple-field sensor having a plurality of sensing lines for each color channel and with each sensing line capable of scanning a scan document, comprising the steps of: sequentially scanning an identical portion of the scan document using the sensing lines to obtain a plurality of corresponding image signals; storing each image signal; summing the image signals cumulatively; and averaging the sum of the image signals to produce an average image signal.
Claim 10
Dependent Claim
78 words
An image scanning method that utilizes a multiple-field sensor having a plurality of sensing lines for each color channel and with each sensing line capable of scanning a scan document, comprising the steps of: sequentially scanning an identical portion of the scan document using the sensing lines to obtain a plurality of corresponding image signals; storing each image signal; summing the image signals cumulatively; and averaging the sum of the image signals to produce an average image 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) | 2006-12-22 | 2007-06-23 | 2007-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-12-22 | 2011-06-23 | 2011-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-12-22 | 2015-06-23 | 2015-12-23 | $7700.00 | Window Closed / Lapsed |