Electronic imaging system

Details Electronic imaging system Electronic imaging system

2007-05-29

2007-05-29

Lee, John R. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

Reexamination Certificate

active

11060317

ABSTRACT:
An electronic imaging system having an image sensor array that includes photodetectors arranged in rows and a rolling shutter for initiating charge integration by row and reading out pixel signals by row after a lapse of a predetermined integration time is equipped with a lighting unit having an LED array including rows of LED elements for producing flashes in different directions, respectively, and a circuitry for exciting and extinguishing the LED rows, one at a time. The LED rows are allocated to a plurality of sections into which the image sensor array is divided, one row to each section. The circuitry initiates excitation of each LED row allocated to a given section of the array at the beginning of charge integration of a first row of the given section and extinguishes the LED row at termination of charge integration of a last row of the given section.

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patent: 2005/0105785 (2005-05-01), Shigeta
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