Ex parte STEIN et al. - Page 3



          Appeal No. 1998-0183                                                        
          Application No. 08/413,040                                                  


               The invention is related to a device for protecting data               
          transmitted by a facsimile machine.  The device is a                        
          self-contained unit comprising a lightweight, detachable,                   
          portable housing which can be attached to a free standing                   
          facsimile machine or directly to a telephone line.  Mounted                 
          within the housing is a keypad and a visual display associated              
          with the keypad for transmitting command signals to electronic              
          circuitry mounted within the housing.  The electronic                       
          circuitry  allows encryption of the data received by the                    
          facsimile machine and storage of the encrypted data for                     
          subsequent retrieval upon command of the user of the device.                
          When a retrieval signal is transmitted to the electronic                    
          circuitry, the data are either transmitted in an encrypted                  
          form to a receiving facsimile, where they are decrypted in                  
          accordance with the matching code, or are decrypted by a                    
          similar device attached to a remote (receiving) facsimile                   
          machine.  The invention is further illustrated by claim 1                   
          below.                                                                      
               1. A device for protecting data transmitted by a                       
          facsimile      machine, comprising:                                         
               a lightweight self-contained detachable, portable                      
          housing provided with means for encrypting                                  
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