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US 4,661,713 AGranted
Photovoltaic diode detection device having compensation for defective diodes
AssigneeSat
InventorsJean G. Besson, Michel Royer, Andre A. Salaville, Michel B. Sirieix
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Abstract
The device includes at least two diode arrays which contain some diodes which are defective. The defective diodes are compensated in that the respective diodes of the two arrays are aligned in pairs along the scanning direction, with each of the pairs containing at least one good diode. The device also comprises a programmed memory for controlling two switches and for accomplishing a winding or serpentine readout of the arrays. The device is well adapted for landscape scanning.
Claims9
A detection device comprising:
- a first array of photovoltaic diodes for producing output signals, wherein the first array includes some defective diodes;
- at least a second array of photovoltaic diodes for producing output signals, said second array being adjacent to said first array, some of the diodes of said second array being defective, corresponding diodes of the first and second arrays being arranged in diode pairs aligned along a scanning direction, each of said pairs comprising at least one diode which is non-defective;
- and
- selection means for selecting the output signal of a non-defective diode in each diode pair so as to effect readout of the diodes in serpentine fashion.
1 more element
Dependencies are inferred from the claim text.