Device for reading a sensor matrix

Details Device for reading a sensor matrix Device for reading a sensor matrix

1990-12-14

1992-06-09

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

25037009, 250211J, 35821323, 35821329, H01L 2714

Patent

active

051209640

ABSTRACT:
A device for reading the charges of several sensor elements (12, 13, 22, . . . ) which are arranged in a matrix, for each column of sensors there being provided a common read line (82, 83) while for each row of sensors there is provided a common switching line (19, 29, . . . , 79). In order to achieve a reduction of the read capacitances for each column of sensors there are also provided several segmented read lines (91, 92, . . . ) which are connectable to only a few sensor elements (12, 13, 22, . . . ) of a column, via the switches (2) thereof, and which are individually connectable, via further electric switches (4, 5), to the common read line (82, 83) of the column; for a read operation of a row of sensors, those segmented read lines (91, 92, . . . ) of each column, which are connected to the activated row of sensors, via the switches (2) thereof are connectable to the common read lines (82, 83).

REFERENCES:
patent: 4382187 (1983-05-01), Fraleux et al.
patent: 4609824 (1986-09-01), Munier et al.
patent: 4689487 (1987-08-01), Nishiki et al.

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