Patent ID: 8692873

Claim:
A video frame data receiver for capturing images from a diagnostic test or assay at a low capture rate, said video frame data receiver comprising: at least one microprocessor; at least one signal receiver; and at least one memory device, wherein the at least one memory device stores instructions which, when executed by the at least one microprocessor, cause the at least one microprocessor to operate with the at least one signal receiver to: (a) receive a first synchronizing signal from an image sensor in signal communication with said at least one microprocessor, said image sensor configured to store data indicative of a video frame, said first synchronizing signal indicating at least whether the image sensor is storing data indicative of an end of a video frame, (b) receive a second synchronizing signal from the image sensor, said second synchronizing signal indicating at least whether the image sensor is storing data indicative of an end of one of a plurality of lines of the video frame, (c) receive a clock signal from the image sensor, said clock signal indicating whether said image sensor is currently storing valid data indicative of at least a portion of the video frame, (d) at a first point in time, determine whether said first synchronizing signal indicates that the image sensor is storing data indicative of the end of at least the portion of the video frame, (e) at said first point in time, also determine whether said second synchronizing signal indicates that the image sensor is storing data indicative of the end of one of the plurality of lines of the video frame, and (f) if, at said first point in time, said first synchronizing signal indicates that the image sensor is storing data indicative of the end of the video frame and the second synchronizing signal simultaneously indicates that the image sensor is storing data indicative of the end of one of the plurality of lines of the video frame: (i) poll the clock signal until said clock signal indicates that said image sensor is currently storing valid data indicative of at least a portion of the video frame, and (ii) when the clock signal indicates that the image sensor is currently storing valid data indicative of at least a portion of the video frame, read and store the then-stored data indicative of at least the portion of the video frame from the image sensor during a current data-valid half-period, said video frame representing an outcome of the diagnostic test or assay.