In particular, embedded in the process itself is a command or function or subroutine...http://www.google.com/patents/US4954941?utm_source=gb-gplus-sharePatent US4954941 - Method and apparatus for program updatingAdvanced Patent SearchPublication numberUS4954941 APublication typeGrantApplication numberUS 07/238,485Publication dateSep 4, 1990Filing dateAug 31, 1988Priority dateAug 31, 1988Fee status