Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1982-11-08
1986-03-18
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
357 24, 358213, H01L 3100
Patent
active
045771154
ABSTRACT:
Delay for a field time is introduced between the end of the time a field of pixel samples is transferred from the A register into the B register of a field-transfer CCD imager and the beginning of the time the field of pixel samples is transferred from the B register to the C register. Such field delay is useful in differentiating response to a radiant energy image with respect to time, for example. A field of pixel samples is delayed in a first B register sufficiently long to be in time registration with a succeeding field of pixel samples in a second B register and responses to these samples are differentially combined to provide indications of transient phenomena in one field and not the other or in one field for longer time than in the other. The two B registers may be in two CCD imagers receiving images in spatial registration or may be in a CCD imager in which one A register alternately supplies samples to the two B registers.
REFERENCES:
patent: 3777061 (1973-12-01), Takemura
patent: 3931463 (1974-06-01), Levine
patent: 4064533 (1977-12-01), Lampe et al.
patent: 4301471 (1981-11-01), Holscher et al.
patent: 4339665 (1982-06-01), Utagawa et al.
Freedman Larry A.
Rentsch Edward M.
Limberg Allen LeRoy
RCA Corporation
Tripoli Joseph S.
Troike Robert L.
Westin Edward P.
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