[sci.electronics] "smart" cards

ddl@husc6.harvard.edu (Dan Lanciani) (03/02/90)

	Anyone know off hand to what extent "smart" cards
(the variety with two-way interaction, e.g., keyboards and displays)
used for identification are covered by comprehensive patents?
That is, does anything that fits in your pocket, has a keyboard and
display, and serves some authentication purpose already require
a license to produce?

				Dan Lanciani
				ddl@harvard.*