Photo-sensor array with pixel-level signal comparison

A signal generator produces multi-outbound comparison signals based on initial signal corresponding to illumination of photosensor, and internal comparison signal based on initial signal. The comparison signal is input to neighboring pixels through summing node (110). A comparator (116) outputs a si...

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Bibliographic Details
Main Authors KNEE, DEREK L, OLIVER, THOMAS C
Format Patent
LanguageEnglish
French
German
Published 19.11.2008
Subjects
BASIC ELECTRIC ELEMENTS
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
SEMICONDUCTOR DEVICES
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Summary:A signal generator produces multi-outbound comparison signals based on initial signal corresponding to illumination of photosensor, and internal comparison signal based on initial signal. The comparison signal is input to neighboring pixels through summing node (110). A comparator (116) outputs a signal indicating relative difference in pixel illumination based on internal comparison signal and summed input signals. Independent claims are also included for the following: (1) computer input device; (2) method for indicating relative difference in illumination of pixels within image sensor array.
Bibliography:Application Number: EP20030021239