Appeal No. 2006-1049
Application No. 09/667,826
Appendix 1
Drawings of application, as filed
Brief description of the drawings of Cannata et al., U.S. Patent 5,811,808, of which
the present applicants seek reissue (drawing sheets 1-3, 7, and 9 are attached).
Figure 1 is a block schematic drawing of an infrared focal plane array imaging
system in accordance with the present invention.
Figure 2 is a block schematic drawing of the focal plane array shown in Figure 1,
in accordance with the present invention.
Figure 3A is a schematic drawing illustrating the readout cell circuitry associated
with a single pixel of the focal plane array of Figure 2 in accordance with a
preferred embodiment of the present invention employing current biasing of a
microbolometer detector element.
Figure 3B is the readout circuit of Figure 3A further including an offset correction
circuit in accordance with the present invention.
Figures 6A-6G are timing diagrams illustrating the timing signals employed in the
readout circuit.
Figure 7 is a graphical representation of an example of offset correction provided
for several pixels of the focal plane array in accordance with the present invention.
Figure 10 is an alternate embodiment of the offset correction circuit illustrated in
Figure 3 employing a network of fixed current sources.
Figure 11 is a schematic drawing of another alternate embodiment of the offset
correction circuit of Figure 3 employing a network of fixed current sources
switchably connected between the voltage source and the microbolometer detector
element.
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