Imaging device and method for controlling same

Details Imaging device and method for controlling same Imaging device and method for controlling same

2002-04-19

2008-09-02

Vu, Ngoc-Yen T. (Department: 2622)

Television

Camera, system and detail

Power supply

C348S241000

Reexamination Certificate

active

07420614

ABSTRACT:
The invention pertains to an imaging device and to a process for controlling the device. The device comprises a power supply (1), matrix means allowing an image to be emitted or sensed, the matrix of the matrix imaging means being scanned at a scanning frequency, the power supply (1) converting a DC input voltage (Dce) into at least one DC output voltage (DCs) allowing the powering of the matrix imaging means (2). The power supply (1) is of chopped type and chops the DC input voltage (Dce) at a chopping frequency dependent on the scanning frequency. In the process for controlling the imaging device described above, a useful image is preceded by an offset image and a correction dependent on the offset image is applied to the useful image.

REFERENCES:
patent: 5161022 (1992-11-01), Ichimura et al.
patent: 5850257 (1998-12-01), Sakata
patent: 6144408 (2000-11-01), MacLean
patent: 0 886 441 (1998-12-01), None
patent: 886441 (1998-12-01), None
patent: 0 899 946 (1999-03-01), None
patent: 899946 (1999-03-01), None

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