Patent ID: 8198606

Claim:
A system for monitoring detectable responses from multiple biosensing elements while in contact with multiple samples present located in an array of spaced-apart sites, the system comprising: an exciting unit configured and operable for producing an array of exciting signals each comprising a frequency differing from those of the other exciting signals, and exciting a corresponding array of the biosensing elements by said array of signals, respectively, so that each biosensing element of said array is excited by a different exciting signal, thereby enabling each biosensing element to generate a response signal tagged by the different frequency; a detection unit comprising a single receiving element associated with said array of biosensing elements and configured for concurrently receiving the multiple response signals and generating a single output signal indicative thereof; and a data processor configured and operable for processing the output signal by separating said signal into its Fourier components, and obtaining the signal parts coming from different locations, thereby enabling to identify the location of the responding biosensing element, the data processor comprising a phase locking utility configured and operable for identifying different phases of the Fourier components, respectively; the system thereby enabling to identify, in said single output signal, signal parts corresponding to the response signals of the spatially separated biosensing elements, based on the different frequencies in the response signals coming from the different sites.