US5229859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image pickup apparatus for full line reading
Assignee: Ricoh Co Ltd
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Filing: 1991-09-27
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Granted: 1993-07-20
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Expires: 2011-09-27
Abstract
Abstract An image pickup apparatus which is capable of full line reading, comprises a line delay device, a picture element delay device, a switching device, and an adding device. The line delay device delays an output of an image pickup element for one line. The picture element delay device delays the output delayed for one line for one picture element. The switching device selects the output either of the line delay device or of the picture element delay device and outputs the selected output. Furthermore, the switching device is adapted to supply the selected output for the adding device at every two lines in a cycle of four lines. The adding device adds the output of the switching device to the output of the image pickup element and outputs the added output.
Inventors
- 👤 Takashi Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:55
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/80; H04N23/84; H04N23/843; H04N25/00; H04N25/10; H04N25/11; H04N25/13; H04N25/135; H04N25/136
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
183 words
An image pickup apparatus comprising: an image pickup element having a plurality of lines for generating an output by every one line, said one line having a plurality of picture elements; a line delay means for delaying said output from one of said lines by one line; a picture element delay means for delaying said one line delayed output by one picture element; a selecting means for selecting one of said one line delayed output and said one picture element delayed output and for outputting said selected one; and an adding means for adding said selected one to said output from an other line adjacent to said one of said lines from said image pickup element and for outputting said added output, said selecting means selecting one of said one line delayed output and said one picture element delayed output in such a manner that two successive color difference signals obtained from said added outputs are different from each other in a case of a full line reading wherein a color separation process circuit generates said color different signals from said added output.
Claim 2
Dependent Claim
183 words
An image pickup apparatus comprising: an image pickup element having a plurality of lines for generating an output by every one line, said one line having a plurality of picture elements; a line delay means for delaying said output from one of said lines by one line; a picture element delay means for delaying said one line delayed output by one picture element; a selecting means for selecting one of said one line delayed output and said one picture element delayed output and for outputting said selected one; and an adding means for adding said selected one to said output from an other line adjacent to said one of said lines from said image pickup element and for outputting said added output, said selecting means selecting one of said one line delayed output and said one picture element delayed output in such a manner that two successive color difference signals obtained from said added outputs are different from each other in a case of a full line reading wherein a color separation process circuit generates said color different signals from said added output.
Claim 3
Dependent Claim
24 words
An image pickup apparatus according to claim 1, wherein said image pickup element comprises a charge coupled device with a complementary color checkered filter.
Claim 4
Dependent Claim
19 words
An image pickup apparatus according to claim 2, wherein said image pickup element includes a correlated double sampling circuit.
Claim 5
Dependent Claim
24 words
An image pickup apparatus according to claim 1, wherein said charge coupled device has three vertical transfer gates for one of said picture elements.
Claim 6
Dependent Claim
42 words
An image pickup apparatus according to claim 2, wherein said selecting means selects alternately said one line delayed output and said one picture element delayed output at every two lines in a cycle of four successive lines of said charge coupled device.
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) | 1996-07-19 | 1997-01-18 | 1997-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-19 | 2001-01-18 | 2001-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-19 | 2005-01-18 | 2005-07-20 | $7700.00 | Window Closed / Lapsed |