Abstract: The present disclosure provides a system and method for mapping zone-based metadata into one or more reference-able objects. The system and method extracts and/or generates metadata from a document according to custom zones defined in a document type. Each custom zone is associated to actions such as generating events, invoking triggers and/or invoking callback methods. One or more of these actions may be triggered when pre-processing or post-processing a document. According to an inventive concept of the present application, when a document is stored in a data storage and placed in a process queue to be processed by a suitable processing plugin according to the custom zones defined in the document. For instance, an image file comprising textual custom zones may be processed by an OCR plugin which extracts text metadata from the document. Other processing plugins include plugins to extract metadata from proprietary document formats such as CAD, PPTX, PDF, PSD, or others.

Abstract: A feedback generator of a reference current may include a differential amplifier having a first input for a reference voltage, and a second input for a feedback voltage and generating an output voltage. The feedback generator may also include a first conduction path including a feedback resistor with the feedback voltage applied thereon, and a first transistor controlled by the output voltage and forcing through the feedback resistor the reference current. The feedback generator may also include a second conduction path coupled to the differential amplifier and biasing the differential amplifier based upon the reference current.