Appeal No. 1999-2690
Application 08/720,563
The disclosed invention relates to a method and apparatus
for providing variable exposure time in each row of complementary
metal-oxide semiconductor (CMOS) sensors in a CMOS sensor array.
A pair of rotating “pointers” are utilized to independently
trigger the resetting and reading-out of the charges contained in
each of the cells in each row of the sensor array.
Claim 1 is illustrative of the invention and reads as
follows:
1. A method for controlling a CMOS sensor array containing
a first line of CMOS sensor cells arranged in a linear fashion,
comprising the steps of:
receiving a clock signal and generating a first address;
generating a line reset signal to said first line of CMOS
sensor cells based on said first address;
calculating line read delay based on said first address and
an offset value;
generating a line read signal to said first line of CMOS
sensor cells after said line read delay; and,
generating a set of pixel values containing a pixel value
for each CMOS sensor cell in said first line of CMOS sensor
cells.
The Examiner relies on the following prior art:
Wilder et al. (Wilder) 5,262,871 Nov. 16, 1993
2
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