Single-chip color CMOS image sensor with two or more line readin

Details Single-chip color CMOS image sensor with two or more line readin Single-chip color CMOS image sensor with two or more line readin

1998-07-07

2000-03-07

Couso, Jose L.

Image analysis

Image sensing

382141, G06K 700

Patent

active

060350776

ABSTRACT:
The present invention is directed to a single-chip color CMOS image sensor with a novel two or more line reading structure which is compatible with MOS fabrication technology. The invention allows the simultaneous reading of line signals from two rows of pixels so that combinations of signals from pixels in different rows may be obtained without the use of an external delay line device. The sensor includes a pixel array having superimposed thereon a color filter pattern and a two or more line reading structure. The reading structure includes sets of storage capacitors on which the pixel signals are stored, and a means for reading the signals from the capacitors in such a way that signals from pixels in different rows may be combined. The reading structure is external to the pixel array but may still be fabricated on the same CMOS chip as the pixel array. By using a high-sensitivity interlace color structure that allows complementary sets of every other row to be read during alternating even and odd fields, the sensitivity of the device as a whole can be effectively doubled.

REFERENCES:
patent: 4513312 (1985-04-01), Takemura
patent: 4542409 (1985-09-01), Ochi
patent: 4652911 (1987-03-01), Teranishi et al.
patent: 4686373 (1987-08-01), Tew et al.
patent: 4939573 (1990-07-01), Teranishi et al.
patent: 5282025 (1994-01-01), Sato
patent: 5464984 (1995-11-01), Cox et al.
Cormier, D., "Solid-State Optical Sensors Improve Their Image," ESD: The Electronic System Design Magazine, 36-42 (1989).
Denyer, P.B. et al., "Intelligent CMOS Imaging," SPIE, 2415:285-291 (1995).
Fossum, E.R., "Active Pixel Sensors: Are CCD's Dinosaurs?", SPIE, 1900:2-14 (1993).
Hodgson, R.M. et al., "Charge transfer devices and their application," New Zealand Engineering, 34:246-249 (1979).
Imaide, T. et al., "Single-Chip Color Cameras with Reduced Aliasing," Journal of Imaging Technology, 2, No. 5:258-260 (1986).
Mendis, S.K. et al., "Progress in CMOS Active Pixel Image Sensors," SPIE, 2172:19-29 (1994).
Nixon, R.H. et al., "128X128 CMOS Photodiode-type Active Pixel Sensor With On-chip Timing, Control and Signal Chain Electronics," SPIE, 2415:117-123 (1995).
Onga, M. et al., "New Signal Processing LSIs for the 8mm Camcorder," IEEE Transactions on Consumer Electronics, 36, No. 3:494-501 (1990).
Parulski, K.A., "Color Filters and Processing Alternatives for One-Chip Cameras," IEEE Transactions on Electron Devices, ED-32 No. 8:1381-1389 (1985).
Tsuruta, S. et al., "Color Pixel Arrangement Evaluation for LC-TV," Conference Record of the 1985 International Display Research Conference, 85 CH2239:24-26 (1985).
Watanabe, T. et al., "A CCD Color Signal Separation IC for Single-Chip Color Images," IEEE Journal of Solid-State Circuits, SC-19, No. 1:49-54 (1984).

Affiliated with

Also associated with

Rating

Single-chip color CMOS image sensor with two or more line readin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Single-chip color CMOS image sensor with two or more line readin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single-chip color CMOS image sensor with two or more line readin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-370347