Patent US5689347A successfully refreshed from Google Patents.
US5689347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal processing apparatus
Assignee: Canon Inc
•
Filing: 1996-03-04
•
Granted: 1997-11-18
•
Expires: 2016-03-04
Abstract
Abstract There is disclosed an image reading apparatus constructed by two line sensors, a reading circuit for reading out outputs of the two line sensors through different channels, memory units for storing image signals which were read out by the reading circuit, and a control unit for controlling so that the image signals stored in the memory units are read out at a speed higher than that upon storage, wherein the reading circuit reads the outputs of the two line sensors from the different channels while deviating the outputs by a predetermined time, respectively.
Inventors
- 👤 Masaaki Naoi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:06
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/203; H04N1/2032; H04N1/2034; H04N1/32; H04N1/32358; H04N1/32443; H04N1/40; H04N1/40056; H04N1/12; H04N1/19; H04N1/191; H04N1/192; H04N1/193; H04N2201/00; H04N2201/32; H04N2201/3285; H04N2201/329; H04N2201/3292
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
88 words
An image reading apparatus comprising: two line sensors; reading means for reading out outputs of said two line sensors through different channels, respectively; memory means for storing image signals read out by said reading means, respectively; and control means for controlling so that the image signals stored in said memory means are read out at a speed higher than that upon storage, wherein said reading means reads out the outputs of said two line sensors from said different channels while deviating said outputs by a predetermined time, respectively.
Claim 2
Dependent Claim
88 words
An image reading apparatus comprising: two line sensors; reading means for reading out outputs of said two line sensors through different channels, respectively; memory means for storing image signals read out by said reading means, respectively; and control means for controlling so that the image signals stored in said memory means are read out at a speed higher than that upon storage, wherein said reading means reads out the outputs of said two line sensors from said different channels while deviating said outputs by a predetermined time, respectively.
Claim 3
Dependent Claim
31 words
An apparatus according to claim 1, further comprising synthesizing means for synthesizing the outputs of said two line sensors which were read out from the memory means by said control means.
Claim 4
Dependent Claim
41 words
An apparatus according to claim 1, wherein said line sensors generate two-split outputs and said reading means reads out the outputs of said two line sensors in a manner such that they are deviated from each other by every 1/2 line.
Claim 5
Dependent Claim
39 words
An apparatus according to claim 1, wherein said two line sensors are a line sensor to read out a front side image of an original and a line sensor to read out a back side image of said original.
Claim 6
Dependent Claim
14 words
An apparatus according to claim 1, wherein said two line sensors have different resolutions.
Claim 7
Dependent Claim
36 words
An apparatus according to claim 1, wherein said two line sensors are a line sensor to read out a whole area of an original and a line sensor to read out a part of said original.
Claim 8
Dependent Claim
14 words
An apparatus according to claim 6, wherein said two line sensors have different resolutions.
Claim 9
Dependent Claim
26 words
An apparatus according to claim 6, wherein said line sensor to read out a part of said original reads out an additional information of the original.
Claim 10
Dependent Claim
14 words
An apparatus according to claim 8, wherein said two line sensors have different resolutions.
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) | 2000-11-17 | 2001-05-19 | 2001-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-17 | 2005-05-19 | 2005-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-17 | 2009-05-19 | 2009-11-18 | $7700.00 | Window Closed / Lapsed |