Multi-chip photosensor with independently adjustable...

Details Multi-chip photosensor with independently adjustable... Multi-chip photosensor with independently adjustable...

2011-05-10

2011-05-10

Epps, Georgia Y (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S2140SW, C250S2140RC, C348S297000, C358S482000

Reexamination Certificate

active

07939788

ABSTRACT:
A photosensitive apparatus, such as a scanner used in a digital copier, includes a plurality of photosensor chips. Each photosensor chip comprises a first set of photosensors, and a control portion for accepting an external integration signal, the signal causing an integration time for the set of photosensors. A signal adjustor is associated with the control portion, and effectively alters the external integration signal to cause the control portion to cause a modified integration time for the first set of photosensors. The system enables adjustments of integration times among chips within an apparatus sharing a common control line.

REFERENCES:
patent: 4262301 (1981-04-01), Erlichman
patent: 4335405 (1982-06-01), Sakane et al.
patent: 5148168 (1992-09-01), Masuda et al.
patent: 5519514 (1996-05-01), TeWinkle
patent: 6014160 (2000-01-01), TeWinkle et al.
patent: 6819781 (2004-11-01), Simpkins
patent: 2006/0274174 (2006-12-01), TeWinkle

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