US4858020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image sensing device
Assignee: Canon Inc
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Filing: 1988-01-26
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Granted: 1989-08-15
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Expires: 2008-01-26
Abstract
Abstract An image sensing device allowing normal or teleconversion operation has an image sensor which includes a plurality of horizontal lines and is capable of being non-destructively read out. Area setting ciruitry is included for variably setting a reading area of the image sensor. Clock control circuitry includes a plurality of reading lines and is arranged to read out image information from the selected reading area. Reading circuitry non-destructively reads out, a plurality of times for the tele-conversion operation, the signals from the set reading area. The reading cycle corresponds to the size of the set reading area. Clearing circuitry is also included for clearing altogether the areas of the image sensor other than the set reading area.
Inventors
- 👤 Hideo Homma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:35
CPC Classifications
H; H04; H04N; H04N25/00; H04N25/40; H04N25/44; H04N25/443; H04N25/70; H04N25/71; H04N25/745; H04N25/76; H04N25/7795
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
60 words
An image sensing device comprising: an image sensor; area setting means for setting a reading area of said image sensor; clock control means for reading out sensed image information from said reading area, and for setting a reading cycle for performing said reading; and clearing means for clearing altogether the areas of said image sensor other than said reading area.
Claim 2
Dependent Claim
60 words
An image sensing device comprising: an image sensor; area setting means for setting a reading area of said image sensor; clock control means for reading out sensed image information from said reading area, and for setting a reading cycle for performing said reading; and clearing means for clearing altogether the areas of said image sensor other than said reading area.
Claim 3
Dependent Claim
23 words
A device according to claim 1, wherein said clock control means is arranged to change a reading frequency according to a magnifying rate.
Claim 4
Dependent Claim
20 words
A device according to claim 1, wherein said clearing means is arranged to clear said areas during a blanking period.
Claim 5
Dependent Claim
21 words
A device according to claim 3, wherein said clearing means is arranged to clear said areas during a vertical blanking period.
Claim 6
Dependent Claim
21 words
A device according to claim 3, wherein said clearing means is arranged to clear said areas during a horizontal blanking period.
Claim 7
Dependent Claim
32 words
A device according to claim 1, wherein said clock control means includes a plurality of reading lines for simultaneously reading out signals from a plurality of horizontal lines of said image sensor.
Claim 8
Dependent Claim
24 words
A device according to claim 6, further comprising gain control means for controlling the gain of the signal of each of said reading lines.
Claim 9
Dependent Claim
25 words
A device according to claim 7, wherein said gain control means is arranged to control the gain for each of said plurality of horizontal lines.
Claim 10
Independent Claim
29 words
A device according to any one of claims 6 to 8, further comprising computing means for performing a computing operation on the signals of said plurality of horizontal lines.
Claim 11
Dependent Claim
16 words
A device according to claim 1, wherein said image sensor is capable of performing non-destructive readout.
Claim 12
Dependent Claim
26 words
A device according to claim 10, wherein said clock control means is arranged to read out a signal of said reading area a plurality of times.
Claim 13
Dependent Claim
81 words
An image reading device comprising: an image sensor having a plurality of horizontal lines; area setting means for setting a reading area of said image sensor; initializing means arranged to clear the areas of said image sensor other than said reading area; and output means for reading out sensed image information from said reading area in a reading cycle corresponding to the size of said reading area, and for composing an output signal from signals from said plurality of horizontal lines.
Claim 14
Dependent Claim
81 words
An image reading device comprising: an image sensor having a plurality of horizontal lines; area setting means for setting a reading area of said image sensor; initializing means arranged to clear the areas of said image sensor other than said reading area; and output means for reading out sensed image information from said reading area in a reading cycle corresponding to the size of said reading area, and for composing an output signal from signals from said plurality of horizontal lines.
Claim 15
Dependent Claim
20 words
A device according to claim 12, wherein said initializing means is arranged to clear said areas during a blanking period.
Claim 16
Dependent Claim
22 words
A device according to claim 13, wherein said initializing means is arranged to clear said areas action during a vertical blanking period.
Claim 17
Dependent Claim
21 words
A device according to claim 13, wherein said initializing means is arranged to clear said areas during a horizontal blanking period.
Claim 18
Dependent Claim
35 words
A device according to claim 12, wherein said output means includes a plurality of reading lines which are arranged to permit simultaneous readout of signals of said plurality from horizontal lines of said image sensor.
Claim 19
Dependent Claim
24 words
A device according to claim 16, further comprising gain control means for controlling the gain of the signal of each of said reading lines.
Claim 20
Dependent Claim
25 words
A device according to claim 17, wherein said gain control means is arranged to control the gain for each of said plurality of horizontal lines.
Claim 21
Independent Claim
33 words
A device according to any one of claims 16 to 18, wherein said output means includes computing means which is arranged to perform a computing operation on the signals of said horizontal lines.
Claim 22
Dependent Claim
16 words
A device according to claim 12, wherein said image sensor is capable of performing non-destructive readout.
Claim 23
Dependent Claim
25 words
A device according to claim 20, wherein said output means is arranged to read out a signal of said reading area a plurality of times.
Claim 24
Dependent Claim
50 words
An image sensing device comprising: (a) image sensing means capable of performing non-destructive readout; (b) setting means for variably setting a reading area of said image sensing means; and (c) reading means for non-destructively reading, a plurality of times, a signal of said reading area set by said setting means.
Claim 25
Dependent Claim
50 words
An image sensing device comprising: (a) image sensing means capable of performing non-destructive readout; (b) setting means for variably setting a reading area of said image sensing means; and (c) reading means for non-destructively reading, a plurality of times, a signal of said reading area set by said setting means.
Claim 26
Dependent Claim
36 words
A device according to claim 22, wherein said reading means has a plurality of reading lines which are arranged to permit simultaneous reading of signals from a plurality of horizontal lines of said image sensing means.
Claim 27
Dependent Claim
26 words
A device according to claim 23, further comprising gain control means for controlling the gain of the signal of each of said plurality of horizontal lines.
Claim 28
Dependent Claim
25 words
A device according to claim 24, wherein said gain control means is arranged to control the gain for each of said plurality of horizontal lines.
Claim 29
Independent Claim
28 words
A device according to one of claims 23 to 25, further comprising computing means for performing a computing operation on the signals of said plurality of horizontal lines.
Claim 30
Dependent Claim
29 words
A device according to claim 22, further comprising clearing means for clearing altogether areas of said image sensing means other than said reading area set by said setting means.
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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) | 1992-08-14 | 1993-02-13 | 1993-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-14 | 1997-02-13 | 1997-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-14 | 2001-02-13 | 2001-08-15 | $7700.00 | Window Closed / Lapsed |