CMOS imaging for ALC and CDS

Details CMOS imaging for ALC and CDS CMOS imaging for ALC and CDS

2007-12-25

2007-12-25

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C348S297000, C348S308000

Reexamination Certificate

active

11272090

ABSTRACT:
Embodiments of the invention provide pixel cells that allow both automatic light control and correlated double sampling operations. The pixel cell includes first and second photo-conversion devices that can be separately read out. For example, the second photo-conversion device can be the pixel cells' floating diffusion region, with an area and doping profile suitable for photo-conversion. An image sensor may include an array of pixel cells, some or all of which have two photo-conversion devices, and peripheral circuitry for reading out signals from the pixel cells. The image sensor's readout circuitry may monitor charge generated by the second photo-conversion devices to determine when to read out signals from the first photo-conversion devices.

REFERENCES:
patent: 4563708 (1986-01-01), Ishibashi
patent: 4701626 (1987-10-01), Ishizaki et al.
patent: 4819074 (1989-04-01), Suzuki
patent: 5955753 (1999-09-01), Takahashi
patent: 6073851 (2000-06-01), Olmstead et al.
patent: 6140630 (2000-10-01), Rhodes
patent: 6204524 (2001-03-01), Rhodes
patent: 6310366 (2001-10-01), Rhodes et al.
patent: 6326652 (2001-12-01), Rhodes
patent: 6333205 (2001-12-01), Rhodes
patent: 6376868 (2002-04-01), Rhodes
patent: 6710804 (2004-03-01), Guidash
patent: 6759641 (2004-07-01), Loose
patent: 6777661 (2004-08-01), Summa et al.
patent: 6947088 (2005-09-01), Kochi
patent: 58-119279 (1983-07-01), None
patent: 58119279 (1983-07-01), None
patent: 11-266403 (1999-09-01), None
patent: WO-00-78034 (2000-12-01), None
patent: WO 00/78034 (2000-12-01), None
International Search Report dated Nov. 23, 2004.

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