US4733302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image sensor or an image sensing apparatus
Assignee: Canon Inc
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Filing: 1986-09-22
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Granted: 1988-03-22
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Expires: 2006-09-22
Abstract
Abstract An image sensing apparatus comprises: a photo detecting unit for converting an optical image to electrical information; and unnecessary charge transfer unit, formed in the end portion of the photo detecting unit, for transferring the unnecessary charges; a charge removing unit provided at the final end of the unnecessary charge transfer unit; and a drive circuit for driving the unnecessary charge transfer unit synchronously with the transfer of the whole electrical information in the photo detecting unit.
Inventors
- 👤 Takao Kinoshita
- 👤 Shinji Sakai
- 👤 Akira Suga
- 👤 Akihiko Tojo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:45
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/15; H10F39/158; H04; H04N; H04N25/00; H04N25/70; H04N25/71; H04N25/72
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
113 words
Image pickup apparatus comprising: (a) image pickup means for converting an optical image into an electrical signal, the image pickup means including: (i) first charge transfer means for transferring one part of the electrical signal in a first direction; and (ii) second charge transfer means for transferring another part of the electrical signal into a charge drain in a second direction different from said first direction; (b) control means for controlling said first and second charge transfer means to simultaneously drive said first and second charge transfer means; and (c) encoder means for producing a television signal by using the signal transferred by said first charge transfer means in said image pickup means.
Claim 2
Dependent Claim
113 words
Image pickup apparatus comprising: (a) image pickup means for converting an optical image into an electrical signal, the image pickup means including: (i) first charge transfer means for transferring one part of the electrical signal in a first direction; and (ii) second charge transfer means for transferring another part of the electrical signal into a charge drain in a second direction different from said first direction; (b) control means for controlling said first and second charge transfer means to simultaneously drive said first and second charge transfer means; and (c) encoder means for producing a television signal by using the signal transferred by said first charge transfer means in said image pickup means.
Claim 3
Dependent Claim
18 words
Image pickup apparatus according to claim 1, wherein said first and second directions are opposite to each other.
Claim 4
Dependent Claim
19 words
Image pickup apparatus according to claim 1, wherein said image pickup means includes a frame transfer type of CCD.
Claim 5
Dependent Claim
25 words
Image pickup apparatus according to claim 1, wherein said first charge transfer means transfers electrical signals from a inner portion of said image pickup means.
Claim 6
Dependent Claim
25 words
Image pickup apparatus according to claim 1, wherein said second charge transfer means transfers electrical signals from a peripheral portion of said image pickup means.
Claim 7
Dependent Claim
25 words
Image pickup apparatus according to claim 1, wherein the charge transfers of said first and second charge transfer means are controlled by a common electrode.
Claim 8
Dependent Claim
124 words
Image pickup apparatus comprising: (a) image pickup means provided with a photodetector unit which includes a first charge transfer device arranged in a column; (b) read-out means for sequentially reading out electrical signals transferred by said first charge transfer device in said photoconductor unit row by row; (c) charge drain means disposed at the opposite side to said read-out means in said photodetector unit; (d) a second charge transfer device disposed in a column direction at the edge of said photodetector unit, for transferring the electrical signal toward said charge drain means; (e) control means for simultaneously driving said first and second charge transfer devices; and (f) means for producing a television signal by using the signal transferred through said first charge transfer device.
Claim 9
Dependent Claim
124 words
Image pickup apparatus comprising: (a) image pickup means provided with a photodetector unit which includes a first charge transfer device arranged in a column; (b) read-out means for sequentially reading out electrical signals transferred by said first charge transfer device in said photoconductor unit row by row; (c) charge drain means disposed at the opposite side to said read-out means in said photodetector unit; (d) a second charge transfer device disposed in a column direction at the edge of said photodetector unit, for transferring the electrical signal toward said charge drain means; (e) control means for simultaneously driving said first and second charge transfer devices; and (f) means for producing a television signal by using the signal transferred through said first charge transfer device.
Claim 10
Dependent Claim
27 words
Image pickup apparatus according to claim 7 further comprising a light-shielded storage unit disposed between said photodetector unit in said image pickup means and said read-out means.
Claim 11
Dependent Claim
24 words
Image pickup apparatus according to claim 7, wherein the charge transfers of said first and second transfer units are controlled by a common electrode.
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) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |