CCD image sensor including smear suppression means

Details CCD image sensor including smear suppression means CCD image sensor including smear suppression means

1988-12-09

1990-08-21

Ng, Jin F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821315, 35821324, H04N 314

Patent

active

049511483

ABSTRACT:
In a CCD image sensor arrangement, during the transport through the CCD channels the distance between successive signal packets is enlarged and an empty potential well is induced between these packets, which is then transferred as a normal packet together with the signal charges. During the transport, in the said additional well charge is collected which is representative for the smear charge which is trapped during the transport by the corresponding signal packet. When during reading, the smear charge is subtracted from the signal charge, the accurate value of the smear-compensated signals can be determined.

REFERENCES:
patent: 4032976 (1977-06-01), Levine
patent: 4064533 (1977-12-01), Lampe et al.
patent: 4178614 (1979-12-01), Sauer
patent: 4490744 (1984-12-01), Levine
patent: 4584609 (1986-04-01), Klein et al.
patent: 4731656 (1988-03-01), Dischert et al.
"The Accordion Imager: An Ultra High Density Frame Transfer CCD" from the Technical Digest of the International Electron Devices meeting 1984, pp. 40-43.
"Solid State Image Sensors" from Solid State Devices, 1985 Invited Papers Presented at European Solid State Device Research Conference Sep. 1985, pp. 183-200.

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