ZHOU et al. V. KEAGY et al. - Page 11





                                                                                  Interference No. 104,649              
                                                                                               Page No. 8               
                           B. Keagy's '744 Specification                                                                
             F16. Keagy's '744 application is directed to an apparatus and method for acquiring a high                  
             resolution image of a person's fingerprint. (Keagy '969, col. 1, lines 11 -12).' More particularly,        
             Kcagy's application is directed to a fingerprint imaging deviceŭthat employs a finger platen that          
             can be integrated into a card. To create a fingerprint image, a person would insert the card with          
             the finger platen into the fingerprint imaging device to complete the system. The person would             
             then place his or her finger on the top surface of the platen and a camera would take a picture of         
             the fingerprint. (Keagy '969, col. 4, lines 11-24).                                                        


             F17. Keagy's platen can be of various configurations. A configuration that is said to work                 
             especially well is one having a series of "microprisms" in the form of parallel lines of tiny              
             triangular shaped ridges. The small "microprisms" are said to allow for the formation of thin and          
             portable platens as opposed to prior art single prism systems. (Keagy '969, col. 4, lines 25-38).          


             F18. Keagy '774 claim I requires that light enter a plurality of the entrance surfaces and                 
             incident at the sensing surface and that the light is then "reflected through total internal               
             reflection." Keagy Figure 5, depicted below, provides a ray diagram that helps explains the                
             concept of total internal reflection.                                                                      


                    'Kcagy's '744 application is a continuation of Keagy's.U.S. Application No. 09/046,418,             
             now U.S. Patent No. 6,069,969 ( ...969"). Kcagy'744 and Keagy'969 are said to have identical                 
             disclosures. (Zhou Preliminary Motion 3, Paper No. 26, p. 2, fact 2). For reasons of                       
             convenience, we cite to Keagy's issued '969 patent rather than Keagy's unpublished '744                    
             application.                                                                                               







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