Picture pick-up device including a solid-state image sensor and

Details Picture pick-up device including a solid-state image sensor and Picture pick-up device including a solid-state image sensor and

1987-07-07

1988-09-06

Lev, Robert

Facsimile and static presentation processing

Facsimile

Recording apparatus

358909, 35821331, H04N 314

Patent

active

047697091

ABSTRACT:
When using an image sensor (1) having at least a three-layer structure of semiconductor material of, for example, n-p-n conductivity type, in which an n-substrate (2) accommodates strip-shaped regions (3, 4) of alternately higher doped p-type and still higher doped n-type on a substrate side, and in which substrate the p-regions (3) extend to below the n-regions (4) and in which an electrode system (61-64) directed at right angles to the strip-shaped regions (3, 4) is present, an electronic shutter (2-6, SP) can be realized by using a shutter signal (CP1-4, SP) in which a shutter pulse (SP) is present during picture information integration periods so that a charge connection (2, 3, 4) for picture pick-up elements is produced. Consequently charge losses across biased, photosensitive semiconductor junctions (3, 4) and free charge packets under the electrode system (61-64) corresponding thereto can be replenished or depleted, respectively, at the shutter action.

REFERENCES:
patent: 4573077 (1986-02-01), Imai
patent: 4589024 (1986-05-01), Koch et al.
patent: 4611223 (1986-09-01), Hine et al.
patent: 4623927 (1986-11-01), Hoshino
patent: 4684992 (1987-08-01), Nakamura
patent: 4688098 (1987-08-01), Kon et al.
patent: 4706123 (1987-11-01), Chautemps

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