Patent ID: 9060146
Filing Date: 2015-06-16
Classification: G01R,G06K,H04N

Abstract:
1. A sensor apparatus, comprising: an array of active sensor elements arranged in columns and rows, a plurality of thin film access devices, each sensor element being associated with a respective one of the plurality of thin film access devices, wherein the respective thin film access device associated with each sensor element is disposed in a first current path through which an activation current from an activation current source is provided to activate the sensor element, the thin film access device coupling the sensor element to the activation current from the activation current source when biased in an on condition, wherein each sensor element is read through a respective second current path, wherein the second current paths do not include the thin film access device of the first current path, whereby noise from the thin film access device is isolated from the second current paths, wherein each of the second current paths includes a respective thin film access device through which a reading current is provided when accessing the sensor elements for reading, and wherein a first end of each sensor element from a row of sensors elements is electrically coupled to a row line and a second end of each sensor element from the row of sensor elements is electrically coupled to a first column line through its respective thin film access device through which the activation current is provided and to a second column line through which a reading current is provided to its respective thin film access device of the second current path.