Solid state image pickup apparatus, camera and driving...

Details Solid state image pickup apparatus, camera and driving... Solid state image pickup apparatus, camera and driving...

2006-01-11

2008-10-14

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C348S272000, C348S340000

Reexamination Certificate

active

07436343

ABSTRACT:
A solid state image pickup apparatus capable of reading a signal at a high speed while securing a wide dynamic range is provided. A signal based on a part of charges having overflown a photoelectric conversion unit (201) to a floating diffusion region (205) is quantified at an upper bit of an AD converter (206), and a signal based on charges stored in the photoelectric conversion unit (201) is quantified at a lower bit of the AD converter (206). Thereby, multi-bit data having a wide dynamic range can be taken out at a speed as high as possible without increasing the number of devices.

REFERENCES:
patent: 5986704 (1999-11-01), Asai et al.
patent: 6307195 (2001-10-01), Guidash
patent: 2002/0195544 (2002-12-01), Yamashita et al.
patent: 2003/0193586 (2003-10-01), Hayakawa
patent: 2001-186414 (2001-07-01), None

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