Telephone directory

摘要

A telephone has a directory memory, a keyboard and a display arranged to display telephone numbers (and names) when a selected key is pressed. Keys are manually selected using a user's own memory of the first number (or first two or three numbers). As each selected key is pressed in turn, the numbers (or names) displayed on the screen comprise progressive sub-divisions. Such a method of "searching" a directory memory is comprehensive and can be carried much that other searches that may presently used. <IMAGE>