Ex Parte da Cunha et al - Page 2

                Appeal 2007-0961                                                                                 
                Application 10/264,131                                                                           
                                              INTRODUCTION                                                       
                       The claims are directed to a display device having addressable                            
                elements, which may comprise receptor and emitter pairs that allow                               
                annotation of an image on the display.  Claims 1 and 9 are illustrative:                         
                1.  A display, comprising: a display panel having a plurality of                                 
                receptor and emitter pairs, each pair for receiving and transmitting light;                      
                a plurality of control circuits, each individual one of the control                              
                circuits for coupling a receptor and emitter pair together for dynamic and                       
                static light generating purposes; and                                                            
                a plurality of pulse density capture digital circuits, each individual one                       
                of the pulse density capture digital circuits for receiving a pulse train signal                 
                indicative of a desired brightness or hue and for responding to an individual                    
                associated one of the control circuits to facilitate driving an individual                       
                associated one of the emitters on and off at a determined duty cycle to                          
                produce said desired brightness or hue.                                                          

                9.  A display driver circuit, comprising:                                                        
                a pulse density capture circuit for temporarily capturing display                                
                information; another pulse density capture circuit for temporarily capturing                     
                annotation information, wherein said captured annotation information takes                       
                precedence over said display information for display purposes;                                   
                a driver circuit coupled to said pulse density capture circuit and to said                       
                another pulse density capture circuit for driving a light emitting element to a                  
                desired light emitting state in accordance with said display information and                     
                said annotation information.                                                                     

                       The Examiner relies on the following prior art references to show                         
                unpatentability:                                                                                 
                Sandbank   GB 2,118,803  Nov. 2, 1983                                                            


                                                       2                                                         

Page:  Previous  1  2  3  4  5  6  7  8  9  10  11  Next

Last modified: September 9, 2013