Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2006-10-31
2006-10-31
Mai, Lam T. (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S155000
Reexamination Certificate
active
07129883
ABSTRACT:
A column analog-to-digital converter having a voltage comparator and a counter is arranged for each a vertical signal line. The voltage comparator compares a pixel signal inputted via the vertical signal line at each row control signal line with a reference voltage, thereby generating a pulse signal having a length in time axis corresponding to the magnitude of a reset component and a signal component. The counter counts a clock to measure the width of the pulse signal until the end of the comparison operation of the comparator, and stores a count at the end of the comparison. A communication and timing controller controls the voltage comparator and the counter so that, in a first process, the voltage comparator performs a comparison operation on a reset component with the counter performing a down-counting operation, and so that, in a second process, the voltage controller performs the comparison operation on a signal component with the counter performing an up-counting operation.
REFERENCES:
patent: 5736953 (1998-04-01), Yamaguchi
patent: 5877715 (1999-03-01), Gowda et al.
patent: 5920274 (1999-07-01), Gowda et al.
patent: 11 331883 (1999-11-01), None
Fukushima Noriyuki
Muramatsu Yoshinori
Nitta Yoshikazu
Yasui Yukihiro
Mai Lam T.
Sonnenschein Nath & Rosenthal LLP
Sony Corporation
LandOfFree
Method and apparatus for AD conversion, semiconductor device... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for AD conversion, semiconductor device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for AD conversion, semiconductor device... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3713363