A method for providing assured communication in a two-way wireless financial exchange data communication system. An instruction signal for wireless transmission between a first device and a second device includes an assigned sequence number and an adjustable hierarchical value identifying a stage of...http://www.google.fr/patents/US7373322?utm_source=gb-gplus-shareBrevet US7373322 - Two-way wireless communication system for financial industry transactions
Two-way wireless communication system for financial industry transactions
