US4750042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state image pickup element with dual horizontal transfer sections
Assignee: Fujifilm Holdings Corp
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Filing: 1987-01-12
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Granted: 1988-06-07
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Expires: 2007-01-12
Abstract
Abstract A horizontal transfer section for a solid state image-pickup matrix, in which the parallel signals are first read by a first horizontal CCD. A second horizontal CCD is aligned in parallel with the first one and having a deeper potential well. A gate electrode separates the two CCDs. Thereby, the gate electrode can transfer charges from the first to the second CCD and the first CCD can be refilled with different signals. The two horizontal CCDs can be serially read out by common clocking signals.
Inventors
- 👤 Jin Murayama
- 👤 Takashi Miida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:16
CPC Classifications
G; G11; G11C; G11C27/00; G11C27/04; H; H04; H04N; H04N25/00; H04N25/70; H04N25/71; H04N25/713
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
A solid state image pickup element, comprising: a plurality of photoelectric conversion elements arranged in a matrix; a plurality of lines each receiving signals from a column of said matrix and transferring signals to a horizontal transfer section, said horizontal transfer section comprising: two parallel horizontal CCDs each having a plurality of elements receiving signals in an embedded channel, the elements of a first one of said CCDs receiving said signals from corresponding ones of said lines, wherein a stationary state potential well of said embedded channel of one of said CCDs has a differing potential level from a stationary state potential well of said embedded channel of the other of said CCDs; and a gate electrode arranged between said CCDs for gating signals from said elements of said first one of said CCDs to corresponding elements of a second one of said CCDs.
Claim 2
Dependent Claim
144 words
A solid state image pickup element, comprising: a plurality of photoelectric conversion elements arranged in a matrix; a plurality of lines each receiving signals from a column of said matrix and transferring signals to a horizontal transfer section, said horizontal transfer section comprising: two parallel horizontal CCDs each having a plurality of elements receiving signals in an embedded channel, the elements of a first one of said CCDs receiving said signals from corresponding ones of said lines, wherein a stationary state potential well of said embedded channel of one of said CCDs has a differing potential level from a stationary state potential well of said embedded channel of the other of said CCDs; and a gate electrode arranged between said CCDs for gating signals from said elements of said first one of said CCDs to corresponding elements of a second one of said CCDs.
Claim 3
Dependent Claim
39 words
A solid state image-pickup element as recited in claim 1, further comprising means for controlling said gate electrode to gate said signals from said matrix through said first one of said CCDs to said second one of said CCDs.
Claim 4
Dependent Claim
37 words
A solid state image-pickup device as recited in claim 2, wherein said imbedded channel of said first one of said CCDs has a different doping concentration than said embedded channel of said second one of said CCDs.
Claim 5
Dependent Claim
21 words
A solid state image-pickup device as recited in claim 3, wherein said two different doping concentrations extend beneath said gate electrode.
Claim 6
Dependent Claim
40 words
A solid state image-pickup device as recited in claim 3, further comprising: horizontal transfer electrodes disposed over said elements of said two CCDs; and means for controlling said horizontal transfer electrodes of both of said CCDs with common timing signals.
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) | 1991-06-07 | 1991-12-07 | 1992-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-07 | 1995-12-07 | 1996-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-07 | 1999-12-07 | 2000-06-07 | $7700.00 | Window Closed / Lapsed |