Focal plane array capacitance cancellation

Details Focal plane array capacitance cancellation Focal plane array capacitance cancellation

1997-02-13

1998-10-13

Britton, Howard W.

Television

Responsive to nonvisible energy

Infrared

250332, H04N 533

Patent

active

058219927

ABSTRACT:
A video buffer of a focal plane array (FPA) electrical interface module is presented for providing output capacitance cancellation. The buffer has a capacitance cancellation stage (50) for receiving an analog signal produced by a FPA. The cancellation stage (50) includes an amplifier having a gain greater than unity for amplifying the analog signal and positive feedback capacitor for reducing power requirements and providing an increased pixel rate for the system. A dc restoration stage (52) is included for setting the analog signal to a dc level that is required by an external system and a line driving stage (54) for driving a video cable from the buffer to the external components of the system.

REFERENCES:
patent: 5083204 (1992-01-01), Heard
patent: 5489776 (1996-02-01), Lung
patent: 5528035 (1996-06-01), Masarik
patent: 5548329 (1996-08-01), Klatt
patent: 5591973 (1997-01-01), Masarik

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