Appeal No. 96-3758 Application 08/252,832 As software functions are enhanced, improved or added, they can be provided to the user through update disks which may be loaded on a standard personal computer and down loaded to the navigational instrument 1 by way of the input/output port 22 of the optically coupled serial interface connected to the CPU 88 without the necessity of returning the entire navigational instrument 1 to a factory or service center for updating. Without any explanation, the examiner simply assumes that the information received by Pitchford’s navigation device through its optical I/O interface from another electronic device is supplementary navigation data (answer at 4, lines 13-14). The above-quoted description of the use of the I/O port does not reasonably suggest that the information received is supplementary navigation data. The examiner has no basis to assume that the information received constitutes supplementary navigation data. We do not interpret the term navigation data so broadly as to cover anything and everything which may be inputted to a navigation device from whatever source and for whatever purpose. Moreover, all of the claims require selective display of the received supplementary navigation data. Pitchford does not disclose that the programming information or any other information received from the I/O port would be displayed. The examiner concluded that it would have been obvious to display the 8Page: Previous 1 2 3 4 5 6 7 8 9 10 11 NextLast modified: November 3, 2007